| 1 | /* |
| 2 | * Copyright (c) 2000, 2001, 2002 Fabrice Bellard |
| 3 | * |
| 4 | * This file is part of FFmpeg. |
| 5 | * |
| 6 | * FFmpeg is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2.1 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * FFmpeg is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with FFmpeg; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 19 | */ |
| 20 | |
| 21 | /** |
| 22 | * @file |
| 23 | * multiple format streaming server based on the FFmpeg libraries |
| 24 | */ |
| 25 | |
| 26 | #include "config.h" |
| 27 | #if !HAVE_CLOSESOCKET |
| 28 | #define closesocket close |
| 29 | #endif |
| 30 | #include <string.h> |
| 31 | #include <stdlib.h> |
| 32 | #include <stdio.h> |
| 33 | #include "libavformat/avformat.h" |
| 34 | // FIXME those are internal headers, ffserver _really_ shouldn't use them |
| 35 | #include "libavformat/ffm.h" |
| 36 | #include "libavformat/network.h" |
| 37 | #include "libavformat/os_support.h" |
| 38 | #include "libavformat/rtpdec.h" |
| 39 | #include "libavformat/rtpproto.h" |
| 40 | #include "libavformat/rtsp.h" |
| 41 | #include "libavformat/rtspcodes.h" |
| 42 | #include "libavformat/avio_internal.h" |
| 43 | #include "libavformat/internal.h" |
| 44 | #include "libavformat/url.h" |
| 45 | |
| 46 | #include "libavutil/avassert.h" |
| 47 | #include "libavutil/avstring.h" |
| 48 | #include "libavutil/lfg.h" |
| 49 | #include "libavutil/dict.h" |
| 50 | #include "libavutil/intreadwrite.h" |
| 51 | #include "libavutil/mathematics.h" |
| 52 | #include "libavutil/pixdesc.h" |
| 53 | #include "libavutil/random_seed.h" |
| 54 | #include "libavutil/parseutils.h" |
| 55 | #include "libavutil/opt.h" |
| 56 | #include "libavutil/time.h" |
| 57 | |
| 58 | #include <stdarg.h> |
| 59 | #if HAVE_UNISTD_H |
| 60 | #include <unistd.h> |
| 61 | #endif |
| 62 | #include <fcntl.h> |
| 63 | #include <sys/ioctl.h> |
| 64 | #if HAVE_POLL_H |
| 65 | #include <poll.h> |
| 66 | #endif |
| 67 | #include <errno.h> |
| 68 | #include <time.h> |
| 69 | #include <sys/wait.h> |
| 70 | #include <signal.h> |
| 71 | |
| 72 | #include "cmdutils.h" |
| 73 | |
| 74 | const char program_name[] = "ffserver"; |
| 75 | const int program_birth_year = 2000; |
| 76 | |
| 77 | static const OptionDef options[]; |
| 78 | |
| 79 | enum HTTPState { |
| 80 | HTTPSTATE_WAIT_REQUEST, |
| 81 | HTTPSTATE_SEND_HEADER, |
| 82 | HTTPSTATE_SEND_DATA_HEADER, |
| 83 | HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */ |
| 84 | HTTPSTATE_SEND_DATA_TRAILER, |
| 85 | HTTPSTATE_RECEIVE_DATA, |
| 86 | HTTPSTATE_WAIT_FEED, /* wait for data from the feed */ |
| 87 | HTTPSTATE_READY, |
| 88 | |
| 89 | RTSPSTATE_WAIT_REQUEST, |
| 90 | RTSPSTATE_SEND_REPLY, |
| 91 | RTSPSTATE_SEND_PACKET, |
| 92 | }; |
| 93 | |
| 94 | static const char * const http_state[] = { |
| 95 | "HTTP_WAIT_REQUEST", |
| 96 | "HTTP_SEND_HEADER", |
| 97 | |
| 98 | "SEND_DATA_HEADER", |
| 99 | "SEND_DATA", |
| 100 | "SEND_DATA_TRAILER", |
| 101 | "RECEIVE_DATA", |
| 102 | "WAIT_FEED", |
| 103 | "READY", |
| 104 | |
| 105 | "RTSP_WAIT_REQUEST", |
| 106 | "RTSP_SEND_REPLY", |
| 107 | "RTSP_SEND_PACKET", |
| 108 | }; |
| 109 | |
| 110 | #define MAX_STREAMS 20 |
| 111 | |
| 112 | #define IOBUFFER_INIT_SIZE 8192 |
| 113 | |
| 114 | /* timeouts are in ms */ |
| 115 | #define HTTP_REQUEST_TIMEOUT (15 * 1000) |
| 116 | #define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000) |
| 117 | |
| 118 | #define SYNC_TIMEOUT (10 * 1000) |
| 119 | |
| 120 | typedef struct RTSPActionServerSetup { |
| 121 | uint32_t ipaddr; |
| 122 | char transport_option[512]; |
| 123 | } RTSPActionServerSetup; |
| 124 | |
| 125 | typedef struct { |
| 126 | int64_t count1, count2; |
| 127 | int64_t time1, time2; |
| 128 | } DataRateData; |
| 129 | |
| 130 | /* context associated with one connection */ |
| 131 | typedef struct HTTPContext { |
| 132 | enum HTTPState state; |
| 133 | int fd; /* socket file descriptor */ |
| 134 | struct sockaddr_in from_addr; /* origin */ |
| 135 | struct pollfd *poll_entry; /* used when polling */ |
| 136 | int64_t timeout; |
| 137 | uint8_t *buffer_ptr, *buffer_end; |
| 138 | int http_error; |
| 139 | int post; |
| 140 | int chunked_encoding; |
| 141 | int chunk_size; /* 0 if it needs to be read */ |
| 142 | struct HTTPContext *next; |
| 143 | int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */ |
| 144 | int64_t data_count; |
| 145 | /* feed input */ |
| 146 | int feed_fd; |
| 147 | /* input format handling */ |
| 148 | AVFormatContext *fmt_in; |
| 149 | int64_t start_time; /* In milliseconds - this wraps fairly often */ |
| 150 | int64_t first_pts; /* initial pts value */ |
| 151 | int64_t cur_pts; /* current pts value from the stream in us */ |
| 152 | int64_t cur_frame_duration; /* duration of the current frame in us */ |
| 153 | int cur_frame_bytes; /* output frame size, needed to compute |
| 154 | the time at which we send each |
| 155 | packet */ |
| 156 | int pts_stream_index; /* stream we choose as clock reference */ |
| 157 | int64_t cur_clock; /* current clock reference value in us */ |
| 158 | /* output format handling */ |
| 159 | struct FFStream *stream; |
| 160 | /* -1 is invalid stream */ |
| 161 | int feed_streams[MAX_STREAMS]; /* index of streams in the feed */ |
| 162 | int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */ |
| 163 | int switch_pending; |
| 164 | AVFormatContext fmt_ctx; /* instance of FFStream for one user */ |
| 165 | int last_packet_sent; /* true if last data packet was sent */ |
| 166 | int suppress_log; |
| 167 | DataRateData datarate; |
| 168 | int wmp_client_id; |
| 169 | char protocol[16]; |
| 170 | char method[16]; |
| 171 | char url[128]; |
| 172 | int buffer_size; |
| 173 | uint8_t *buffer; |
| 174 | int is_packetized; /* if true, the stream is packetized */ |
| 175 | int packet_stream_index; /* current stream for output in state machine */ |
| 176 | |
| 177 | /* RTSP state specific */ |
| 178 | uint8_t *pb_buffer; /* XXX: use that in all the code */ |
| 179 | AVIOContext *pb; |
| 180 | int seq; /* RTSP sequence number */ |
| 181 | |
| 182 | /* RTP state specific */ |
| 183 | enum RTSPLowerTransport rtp_protocol; |
| 184 | char session_id[32]; /* session id */ |
| 185 | AVFormatContext *rtp_ctx[MAX_STREAMS]; |
| 186 | |
| 187 | /* RTP/UDP specific */ |
| 188 | URLContext *rtp_handles[MAX_STREAMS]; |
| 189 | |
| 190 | /* RTP/TCP specific */ |
| 191 | struct HTTPContext *rtsp_c; |
| 192 | uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end; |
| 193 | } HTTPContext; |
| 194 | |
| 195 | /* each generated stream is described here */ |
| 196 | enum StreamType { |
| 197 | STREAM_TYPE_LIVE, |
| 198 | STREAM_TYPE_STATUS, |
| 199 | STREAM_TYPE_REDIRECT, |
| 200 | }; |
| 201 | |
| 202 | enum IPAddressAction { |
| 203 | IP_ALLOW = 1, |
| 204 | IP_DENY, |
| 205 | }; |
| 206 | |
| 207 | typedef struct IPAddressACL { |
| 208 | struct IPAddressACL *next; |
| 209 | enum IPAddressAction action; |
| 210 | /* These are in host order */ |
| 211 | struct in_addr first; |
| 212 | struct in_addr last; |
| 213 | } IPAddressACL; |
| 214 | |
| 215 | /* description of each stream of the ffserver.conf file */ |
| 216 | typedef struct FFStream { |
| 217 | enum StreamType stream_type; |
| 218 | char filename[1024]; /* stream filename */ |
| 219 | struct FFStream *feed; /* feed we are using (can be null if |
| 220 | coming from file) */ |
| 221 | AVDictionary *in_opts; /* input parameters */ |
| 222 | AVDictionary *metadata; /* metadata to set on the stream */ |
| 223 | AVInputFormat *ifmt; /* if non NULL, force input format */ |
| 224 | AVOutputFormat *fmt; |
| 225 | IPAddressACL *acl; |
| 226 | char dynamic_acl[1024]; |
| 227 | int nb_streams; |
| 228 | int prebuffer; /* Number of milliseconds early to start */ |
| 229 | int64_t max_time; /* Number of milliseconds to run */ |
| 230 | int send_on_key; |
| 231 | AVStream *streams[MAX_STREAMS]; |
| 232 | int feed_streams[MAX_STREAMS]; /* index of streams in the feed */ |
| 233 | char feed_filename[1024]; /* file name of the feed storage, or |
| 234 | input file name for a stream */ |
| 235 | pid_t pid; /* Of ffmpeg process */ |
| 236 | time_t pid_start; /* Of ffmpeg process */ |
| 237 | char **child_argv; |
| 238 | struct FFStream *next; |
| 239 | unsigned bandwidth; /* bandwidth, in kbits/s */ |
| 240 | /* RTSP options */ |
| 241 | char *rtsp_option; |
| 242 | /* multicast specific */ |
| 243 | int is_multicast; |
| 244 | struct in_addr multicast_ip; |
| 245 | int multicast_port; /* first port used for multicast */ |
| 246 | int multicast_ttl; |
| 247 | int loop; /* if true, send the stream in loops (only meaningful if file) */ |
| 248 | |
| 249 | /* feed specific */ |
| 250 | int feed_opened; /* true if someone is writing to the feed */ |
| 251 | int is_feed; /* true if it is a feed */ |
| 252 | int readonly; /* True if writing is prohibited to the file */ |
| 253 | int truncate; /* True if feeder connection truncate the feed file */ |
| 254 | int conns_served; |
| 255 | int64_t bytes_served; |
| 256 | int64_t feed_max_size; /* maximum storage size, zero means unlimited */ |
| 257 | int64_t feed_write_index; /* current write position in feed (it wraps around) */ |
| 258 | int64_t feed_size; /* current size of feed */ |
| 259 | struct FFStream *next_feed; |
| 260 | } FFStream; |
| 261 | |
| 262 | typedef struct FeedData { |
| 263 | long long data_count; |
| 264 | float avg_frame_size; /* frame size averaged over last frames with exponential mean */ |
| 265 | } FeedData; |
| 266 | |
| 267 | static struct sockaddr_in my_http_addr; |
| 268 | static struct sockaddr_in my_rtsp_addr; |
| 269 | |
| 270 | static char logfilename[1024]; |
| 271 | static HTTPContext *first_http_ctx; |
| 272 | static FFStream *first_feed; /* contains only feeds */ |
| 273 | static FFStream *first_stream; /* contains all streams, including feeds */ |
| 274 | |
| 275 | static void new_connection(int server_fd, int is_rtsp); |
| 276 | static void close_connection(HTTPContext *c); |
| 277 | |
| 278 | /* HTTP handling */ |
| 279 | static int handle_connection(HTTPContext *c); |
| 280 | static int http_parse_request(HTTPContext *c); |
| 281 | static int http_send_data(HTTPContext *c); |
| 282 | static void compute_status(HTTPContext *c); |
| 283 | static int open_input_stream(HTTPContext *c, const char *info); |
| 284 | static int http_start_receive_data(HTTPContext *c); |
| 285 | static int http_receive_data(HTTPContext *c); |
| 286 | |
| 287 | /* RTSP handling */ |
| 288 | static int rtsp_parse_request(HTTPContext *c); |
| 289 | static void rtsp_cmd_describe(HTTPContext *c, const char *url); |
| 290 | static void rtsp_cmd_options(HTTPContext *c, const char *url); |
| 291 | static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPMessageHeader *h); |
| 292 | static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h); |
| 293 | static void rtsp_cmd_interrupt(HTTPContext *c, const char *url, RTSPMessageHeader *h, int pause_only); |
| 294 | |
| 295 | /* SDP handling */ |
| 296 | static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer, |
| 297 | struct in_addr my_ip); |
| 298 | |
| 299 | /* RTP handling */ |
| 300 | static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr, |
| 301 | FFStream *stream, const char *session_id, |
| 302 | enum RTSPLowerTransport rtp_protocol); |
| 303 | static int rtp_new_av_stream(HTTPContext *c, |
| 304 | int stream_index, struct sockaddr_in *dest_addr, |
| 305 | HTTPContext *rtsp_c); |
| 306 | |
| 307 | static const char *my_program_name; |
| 308 | |
| 309 | static const char *config_filename; |
| 310 | |
| 311 | static int ffserver_debug; |
| 312 | static int no_launch; |
| 313 | static int need_to_start_children; |
| 314 | |
| 315 | /* maximum number of simultaneous HTTP connections */ |
| 316 | static unsigned int nb_max_http_connections = 2000; |
| 317 | static unsigned int nb_max_connections = 5; |
| 318 | static unsigned int nb_connections; |
| 319 | |
| 320 | static uint64_t max_bandwidth = 1000; |
| 321 | static uint64_t current_bandwidth; |
| 322 | |
| 323 | static int64_t cur_time; // Making this global saves on passing it around everywhere |
| 324 | |
| 325 | static AVLFG random_state; |
| 326 | |
| 327 | static FILE *logfile = NULL; |
| 328 | |
| 329 | static void htmlstrip(char *s) { |
| 330 | while (s && *s) { |
| 331 | s += strspn(s, "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ,. "); |
| 332 | if (*s) |
| 333 | *s++ = '?'; |
| 334 | } |
| 335 | } |
| 336 | |
| 337 | static int64_t ffm_read_write_index(int fd) |
| 338 | { |
| 339 | uint8_t buf[8]; |
| 340 | |
| 341 | if (lseek(fd, 8, SEEK_SET) < 0) |
| 342 | return AVERROR(EIO); |
| 343 | if (read(fd, buf, 8) != 8) |
| 344 | return AVERROR(EIO); |
| 345 | return AV_RB64(buf); |
| 346 | } |
| 347 | |
| 348 | static int ffm_write_write_index(int fd, int64_t pos) |
| 349 | { |
| 350 | uint8_t buf[8]; |
| 351 | int i; |
| 352 | |
| 353 | for(i=0;i<8;i++) |
| 354 | buf[i] = (pos >> (56 - i * 8)) & 0xff; |
| 355 | if (lseek(fd, 8, SEEK_SET) < 0) |
| 356 | return AVERROR(EIO); |
| 357 | if (write(fd, buf, 8) != 8) |
| 358 | return AVERROR(EIO); |
| 359 | return 8; |
| 360 | } |
| 361 | |
| 362 | static void ffm_set_write_index(AVFormatContext *s, int64_t pos, |
| 363 | int64_t file_size) |
| 364 | { |
| 365 | FFMContext *ffm = s->priv_data; |
| 366 | ffm->write_index = pos; |
| 367 | ffm->file_size = file_size; |
| 368 | } |
| 369 | |
| 370 | /* FIXME: make ffserver work with IPv6 */ |
| 371 | /* resolve host with also IP address parsing */ |
| 372 | static int resolve_host(struct in_addr *sin_addr, const char *hostname) |
| 373 | { |
| 374 | |
| 375 | if (!ff_inet_aton(hostname, sin_addr)) { |
| 376 | #if HAVE_GETADDRINFO |
| 377 | struct addrinfo *ai, *cur; |
| 378 | struct addrinfo hints = { 0 }; |
| 379 | hints.ai_family = AF_INET; |
| 380 | if (getaddrinfo(hostname, NULL, &hints, &ai)) |
| 381 | return -1; |
| 382 | /* getaddrinfo returns a linked list of addrinfo structs. |
| 383 | * Even if we set ai_family = AF_INET above, make sure |
| 384 | * that the returned one actually is of the correct type. */ |
| 385 | for (cur = ai; cur; cur = cur->ai_next) { |
| 386 | if (cur->ai_family == AF_INET) { |
| 387 | *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr; |
| 388 | freeaddrinfo(ai); |
| 389 | return 0; |
| 390 | } |
| 391 | } |
| 392 | freeaddrinfo(ai); |
| 393 | return -1; |
| 394 | #else |
| 395 | struct hostent *hp; |
| 396 | hp = gethostbyname(hostname); |
| 397 | if (!hp) |
| 398 | return -1; |
| 399 | memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr)); |
| 400 | #endif |
| 401 | } |
| 402 | return 0; |
| 403 | } |
| 404 | |
| 405 | static char *ctime1(char *buf2, int buf_size) |
| 406 | { |
| 407 | time_t ti; |
| 408 | char *p; |
| 409 | |
| 410 | ti = time(NULL); |
| 411 | p = ctime(&ti); |
| 412 | av_strlcpy(buf2, p, buf_size); |
| 413 | p = buf2 + strlen(p) - 1; |
| 414 | if (*p == '\n') |
| 415 | *p = '\0'; |
| 416 | return buf2; |
| 417 | } |
| 418 | |
| 419 | static void http_vlog(const char *fmt, va_list vargs) |
| 420 | { |
| 421 | static int print_prefix = 1; |
| 422 | if (logfile) { |
| 423 | if (print_prefix) { |
| 424 | char buf[32]; |
| 425 | ctime1(buf, sizeof(buf)); |
| 426 | fprintf(logfile, "%s ", buf); |
| 427 | } |
| 428 | print_prefix = strstr(fmt, "\n") != NULL; |
| 429 | vfprintf(logfile, fmt, vargs); |
| 430 | fflush(logfile); |
| 431 | } |
| 432 | } |
| 433 | |
| 434 | #ifdef __GNUC__ |
| 435 | __attribute__ ((format (printf, 1, 2))) |
| 436 | #endif |
| 437 | static void http_log(const char *fmt, ...) |
| 438 | { |
| 439 | va_list vargs; |
| 440 | va_start(vargs, fmt); |
| 441 | http_vlog(fmt, vargs); |
| 442 | va_end(vargs); |
| 443 | } |
| 444 | |
| 445 | static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs) |
| 446 | { |
| 447 | static int print_prefix = 1; |
| 448 | AVClass *avc = ptr ? *(AVClass**)ptr : NULL; |
| 449 | if (level > av_log_get_level()) |
| 450 | return; |
| 451 | if (print_prefix && avc) |
| 452 | http_log("[%s @ %p]", avc->item_name(ptr), ptr); |
| 453 | print_prefix = strstr(fmt, "\n") != NULL; |
| 454 | http_vlog(fmt, vargs); |
| 455 | } |
| 456 | |
| 457 | static void log_connection(HTTPContext *c) |
| 458 | { |
| 459 | if (c->suppress_log) |
| 460 | return; |
| 461 | |
| 462 | http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n", |
| 463 | inet_ntoa(c->from_addr.sin_addr), c->method, c->url, |
| 464 | c->protocol, (c->http_error ? c->http_error : 200), c->data_count); |
| 465 | } |
| 466 | |
| 467 | static void update_datarate(DataRateData *drd, int64_t count) |
| 468 | { |
| 469 | if (!drd->time1 && !drd->count1) { |
| 470 | drd->time1 = drd->time2 = cur_time; |
| 471 | drd->count1 = drd->count2 = count; |
| 472 | } else if (cur_time - drd->time2 > 5000) { |
| 473 | drd->time1 = drd->time2; |
| 474 | drd->count1 = drd->count2; |
| 475 | drd->time2 = cur_time; |
| 476 | drd->count2 = count; |
| 477 | } |
| 478 | } |
| 479 | |
| 480 | /* In bytes per second */ |
| 481 | static int compute_datarate(DataRateData *drd, int64_t count) |
| 482 | { |
| 483 | if (cur_time == drd->time1) |
| 484 | return 0; |
| 485 | |
| 486 | return ((count - drd->count1) * 1000) / (cur_time - drd->time1); |
| 487 | } |
| 488 | |
| 489 | |
| 490 | static void start_children(FFStream *feed) |
| 491 | { |
| 492 | if (no_launch) |
| 493 | return; |
| 494 | |
| 495 | for (; feed; feed = feed->next) { |
| 496 | if (feed->child_argv && !feed->pid) { |
| 497 | feed->pid_start = time(0); |
| 498 | |
| 499 | feed->pid = fork(); |
| 500 | |
| 501 | if (feed->pid < 0) { |
| 502 | http_log("Unable to create children\n"); |
| 503 | exit(1); |
| 504 | } |
| 505 | if (!feed->pid) { |
| 506 | /* In child */ |
| 507 | char pathname[1024]; |
| 508 | char *slash; |
| 509 | int i; |
| 510 | |
| 511 | /* replace "ffserver" with "ffmpeg" in the path of current |
| 512 | * program. Ignore user provided path */ |
| 513 | av_strlcpy(pathname, my_program_name, sizeof(pathname)); |
| 514 | slash = strrchr(pathname, '/'); |
| 515 | if (!slash) |
| 516 | slash = pathname; |
| 517 | else |
| 518 | slash++; |
| 519 | strcpy(slash, "ffmpeg"); |
| 520 | |
| 521 | http_log("Launch command line: "); |
| 522 | http_log("%s ", pathname); |
| 523 | for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++) |
| 524 | http_log("%s ", feed->child_argv[i]); |
| 525 | http_log("\n"); |
| 526 | |
| 527 | for (i = 3; i < 256; i++) |
| 528 | close(i); |
| 529 | |
| 530 | if (!ffserver_debug) { |
| 531 | if (!freopen("/dev/null", "r", stdin)) |
| 532 | http_log("failed to redirect STDIN to /dev/null\n;"); |
| 533 | if (!freopen("/dev/null", "w", stdout)) |
| 534 | http_log("failed to redirect STDOUT to /dev/null\n;"); |
| 535 | if (!freopen("/dev/null", "w", stderr)) |
| 536 | http_log("failed to redirect STDERR to /dev/null\n;"); |
| 537 | } |
| 538 | |
| 539 | signal(SIGPIPE, SIG_DFL); |
| 540 | |
| 541 | execvp(pathname, feed->child_argv); |
| 542 | |
| 543 | _exit(1); |
| 544 | } |
| 545 | } |
| 546 | } |
| 547 | } |
| 548 | |
| 549 | /* open a listening socket */ |
| 550 | static int socket_open_listen(struct sockaddr_in *my_addr) |
| 551 | { |
| 552 | int server_fd, tmp; |
| 553 | |
| 554 | server_fd = socket(AF_INET,SOCK_STREAM,0); |
| 555 | if (server_fd < 0) { |
| 556 | perror ("socket"); |
| 557 | return -1; |
| 558 | } |
| 559 | |
| 560 | tmp = 1; |
| 561 | if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp))) |
| 562 | av_log(NULL, AV_LOG_WARNING, "setsockopt SO_REUSEADDR failed\n"); |
| 563 | |
| 564 | my_addr->sin_family = AF_INET; |
| 565 | if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) { |
| 566 | char bindmsg[32]; |
| 567 | snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port)); |
| 568 | perror (bindmsg); |
| 569 | closesocket(server_fd); |
| 570 | return -1; |
| 571 | } |
| 572 | |
| 573 | if (listen (server_fd, 5) < 0) { |
| 574 | perror ("listen"); |
| 575 | closesocket(server_fd); |
| 576 | return -1; |
| 577 | } |
| 578 | |
| 579 | if (ff_socket_nonblock(server_fd, 1) < 0) |
| 580 | av_log(NULL, AV_LOG_WARNING, "ff_socket_nonblock failed\n"); |
| 581 | |
| 582 | return server_fd; |
| 583 | } |
| 584 | |
| 585 | /* start all multicast streams */ |
| 586 | static void start_multicast(void) |
| 587 | { |
| 588 | FFStream *stream; |
| 589 | char session_id[32]; |
| 590 | HTTPContext *rtp_c; |
| 591 | struct sockaddr_in dest_addr = {0}; |
| 592 | int default_port, stream_index; |
| 593 | |
| 594 | default_port = 6000; |
| 595 | for(stream = first_stream; stream; stream = stream->next) { |
| 596 | if (stream->is_multicast) { |
| 597 | unsigned random0 = av_lfg_get(&random_state); |
| 598 | unsigned random1 = av_lfg_get(&random_state); |
| 599 | /* open the RTP connection */ |
| 600 | snprintf(session_id, sizeof(session_id), "%08x%08x", |
| 601 | random0, random1); |
| 602 | |
| 603 | /* choose a port if none given */ |
| 604 | if (stream->multicast_port == 0) { |
| 605 | stream->multicast_port = default_port; |
| 606 | default_port += 100; |
| 607 | } |
| 608 | |
| 609 | dest_addr.sin_family = AF_INET; |
| 610 | dest_addr.sin_addr = stream->multicast_ip; |
| 611 | dest_addr.sin_port = htons(stream->multicast_port); |
| 612 | |
| 613 | rtp_c = rtp_new_connection(&dest_addr, stream, session_id, |
| 614 | RTSP_LOWER_TRANSPORT_UDP_MULTICAST); |
| 615 | if (!rtp_c) |
| 616 | continue; |
| 617 | |
| 618 | if (open_input_stream(rtp_c, "") < 0) { |
| 619 | http_log("Could not open input stream for stream '%s'\n", |
| 620 | stream->filename); |
| 621 | continue; |
| 622 | } |
| 623 | |
| 624 | /* open each RTP stream */ |
| 625 | for(stream_index = 0; stream_index < stream->nb_streams; |
| 626 | stream_index++) { |
| 627 | dest_addr.sin_port = htons(stream->multicast_port + |
| 628 | 2 * stream_index); |
| 629 | if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) { |
| 630 | http_log("Could not open output stream '%s/streamid=%d'\n", |
| 631 | stream->filename, stream_index); |
| 632 | exit(1); |
| 633 | } |
| 634 | } |
| 635 | |
| 636 | rtp_c->state = HTTPSTATE_SEND_DATA; |
| 637 | } |
| 638 | } |
| 639 | } |
| 640 | |
| 641 | /* main loop of the HTTP server */ |
| 642 | static int http_server(void) |
| 643 | { |
| 644 | int server_fd = 0, rtsp_server_fd = 0; |
| 645 | int ret, delay; |
| 646 | struct pollfd *poll_table, *poll_entry; |
| 647 | HTTPContext *c, *c_next; |
| 648 | |
| 649 | if(!(poll_table = av_mallocz_array(nb_max_http_connections + 2, sizeof(*poll_table)))) { |
| 650 | http_log("Impossible to allocate a poll table handling %d connections.\n", nb_max_http_connections); |
| 651 | return -1; |
| 652 | } |
| 653 | |
| 654 | if (my_http_addr.sin_port) { |
| 655 | server_fd = socket_open_listen(&my_http_addr); |
| 656 | if (server_fd < 0) { |
| 657 | av_free(poll_table); |
| 658 | return -1; |
| 659 | } |
| 660 | } |
| 661 | |
| 662 | if (my_rtsp_addr.sin_port) { |
| 663 | rtsp_server_fd = socket_open_listen(&my_rtsp_addr); |
| 664 | if (rtsp_server_fd < 0) { |
| 665 | av_free(poll_table); |
| 666 | closesocket(server_fd); |
| 667 | return -1; |
| 668 | } |
| 669 | } |
| 670 | |
| 671 | if (!rtsp_server_fd && !server_fd) { |
| 672 | http_log("HTTP and RTSP disabled.\n"); |
| 673 | av_free(poll_table); |
| 674 | return -1; |
| 675 | } |
| 676 | |
| 677 | http_log("FFserver started.\n"); |
| 678 | |
| 679 | start_children(first_feed); |
| 680 | |
| 681 | start_multicast(); |
| 682 | |
| 683 | for(;;) { |
| 684 | poll_entry = poll_table; |
| 685 | if (server_fd) { |
| 686 | poll_entry->fd = server_fd; |
| 687 | poll_entry->events = POLLIN; |
| 688 | poll_entry++; |
| 689 | } |
| 690 | if (rtsp_server_fd) { |
| 691 | poll_entry->fd = rtsp_server_fd; |
| 692 | poll_entry->events = POLLIN; |
| 693 | poll_entry++; |
| 694 | } |
| 695 | |
| 696 | /* wait for events on each HTTP handle */ |
| 697 | c = first_http_ctx; |
| 698 | delay = 1000; |
| 699 | while (c) { |
| 700 | int fd; |
| 701 | fd = c->fd; |
| 702 | switch(c->state) { |
| 703 | case HTTPSTATE_SEND_HEADER: |
| 704 | case RTSPSTATE_SEND_REPLY: |
| 705 | case RTSPSTATE_SEND_PACKET: |
| 706 | c->poll_entry = poll_entry; |
| 707 | poll_entry->fd = fd; |
| 708 | poll_entry->events = POLLOUT; |
| 709 | poll_entry++; |
| 710 | break; |
| 711 | case HTTPSTATE_SEND_DATA_HEADER: |
| 712 | case HTTPSTATE_SEND_DATA: |
| 713 | case HTTPSTATE_SEND_DATA_TRAILER: |
| 714 | if (!c->is_packetized) { |
| 715 | /* for TCP, we output as much as we can |
| 716 | * (may need to put a limit) */ |
| 717 | c->poll_entry = poll_entry; |
| 718 | poll_entry->fd = fd; |
| 719 | poll_entry->events = POLLOUT; |
| 720 | poll_entry++; |
| 721 | } else { |
| 722 | /* when ffserver is doing the timing, we work by |
| 723 | looking at which packet needs to be sent every |
| 724 | 10 ms */ |
| 725 | /* one tick wait XXX: 10 ms assumed */ |
| 726 | if (delay > 10) |
| 727 | delay = 10; |
| 728 | } |
| 729 | break; |
| 730 | case HTTPSTATE_WAIT_REQUEST: |
| 731 | case HTTPSTATE_RECEIVE_DATA: |
| 732 | case HTTPSTATE_WAIT_FEED: |
| 733 | case RTSPSTATE_WAIT_REQUEST: |
| 734 | /* need to catch errors */ |
| 735 | c->poll_entry = poll_entry; |
| 736 | poll_entry->fd = fd; |
| 737 | poll_entry->events = POLLIN;/* Maybe this will work */ |
| 738 | poll_entry++; |
| 739 | break; |
| 740 | default: |
| 741 | c->poll_entry = NULL; |
| 742 | break; |
| 743 | } |
| 744 | c = c->next; |
| 745 | } |
| 746 | |
| 747 | /* wait for an event on one connection. We poll at least every |
| 748 | second to handle timeouts */ |
| 749 | do { |
| 750 | ret = poll(poll_table, poll_entry - poll_table, delay); |
| 751 | if (ret < 0 && ff_neterrno() != AVERROR(EAGAIN) && |
| 752 | ff_neterrno() != AVERROR(EINTR)) { |
| 753 | av_free(poll_table); |
| 754 | return -1; |
| 755 | } |
| 756 | } while (ret < 0); |
| 757 | |
| 758 | cur_time = av_gettime() / 1000; |
| 759 | |
| 760 | if (need_to_start_children) { |
| 761 | need_to_start_children = 0; |
| 762 | start_children(first_feed); |
| 763 | } |
| 764 | |
| 765 | /* now handle the events */ |
| 766 | for(c = first_http_ctx; c; c = c_next) { |
| 767 | c_next = c->next; |
| 768 | if (handle_connection(c) < 0) { |
| 769 | log_connection(c); |
| 770 | /* close and free the connection */ |
| 771 | close_connection(c); |
| 772 | } |
| 773 | } |
| 774 | |
| 775 | poll_entry = poll_table; |
| 776 | if (server_fd) { |
| 777 | /* new HTTP connection request ? */ |
| 778 | if (poll_entry->revents & POLLIN) |
| 779 | new_connection(server_fd, 0); |
| 780 | poll_entry++; |
| 781 | } |
| 782 | if (rtsp_server_fd) { |
| 783 | /* new RTSP connection request ? */ |
| 784 | if (poll_entry->revents & POLLIN) |
| 785 | new_connection(rtsp_server_fd, 1); |
| 786 | } |
| 787 | } |
| 788 | } |
| 789 | |
| 790 | /* start waiting for a new HTTP/RTSP request */ |
| 791 | static void start_wait_request(HTTPContext *c, int is_rtsp) |
| 792 | { |
| 793 | c->buffer_ptr = c->buffer; |
| 794 | c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */ |
| 795 | |
| 796 | if (is_rtsp) { |
| 797 | c->timeout = cur_time + RTSP_REQUEST_TIMEOUT; |
| 798 | c->state = RTSPSTATE_WAIT_REQUEST; |
| 799 | } else { |
| 800 | c->timeout = cur_time + HTTP_REQUEST_TIMEOUT; |
| 801 | c->state = HTTPSTATE_WAIT_REQUEST; |
| 802 | } |
| 803 | } |
| 804 | |
| 805 | static void http_send_too_busy_reply(int fd) |
| 806 | { |
| 807 | char buffer[400]; |
| 808 | int len = snprintf(buffer, sizeof(buffer), |
| 809 | "HTTP/1.0 503 Server too busy\r\n" |
| 810 | "Content-type: text/html\r\n" |
| 811 | "\r\n" |
| 812 | "<html><head><title>Too busy</title></head><body>\r\n" |
| 813 | "<p>The server is too busy to serve your request at this time.</p>\r\n" |
| 814 | "<p>The number of current connections is %u, and this exceeds the limit of %u.</p>\r\n" |
| 815 | "</body></html>\r\n", |
| 816 | nb_connections, nb_max_connections); |
| 817 | av_assert0(len < sizeof(buffer)); |
| 818 | if (send(fd, buffer, len, 0) < len) |
| 819 | av_log(NULL, AV_LOG_WARNING, "Could not send too-busy reply, send() failed\n"); |
| 820 | } |
| 821 | |
| 822 | |
| 823 | static void new_connection(int server_fd, int is_rtsp) |
| 824 | { |
| 825 | struct sockaddr_in from_addr; |
| 826 | socklen_t len; |
| 827 | int fd; |
| 828 | HTTPContext *c = NULL; |
| 829 | |
| 830 | len = sizeof(from_addr); |
| 831 | fd = accept(server_fd, (struct sockaddr *)&from_addr, |
| 832 | &len); |
| 833 | if (fd < 0) { |
| 834 | http_log("error during accept %s\n", strerror(errno)); |
| 835 | return; |
| 836 | } |
| 837 | if (ff_socket_nonblock(fd, 1) < 0) |
| 838 | av_log(NULL, AV_LOG_WARNING, "ff_socket_nonblock failed\n"); |
| 839 | |
| 840 | if (nb_connections >= nb_max_connections) { |
| 841 | http_send_too_busy_reply(fd); |
| 842 | goto fail; |
| 843 | } |
| 844 | |
| 845 | /* add a new connection */ |
| 846 | c = av_mallocz(sizeof(HTTPContext)); |
| 847 | if (!c) |
| 848 | goto fail; |
| 849 | |
| 850 | c->fd = fd; |
| 851 | c->poll_entry = NULL; |
| 852 | c->from_addr = from_addr; |
| 853 | c->buffer_size = IOBUFFER_INIT_SIZE; |
| 854 | c->buffer = av_malloc(c->buffer_size); |
| 855 | if (!c->buffer) |
| 856 | goto fail; |
| 857 | |
| 858 | c->next = first_http_ctx; |
| 859 | first_http_ctx = c; |
| 860 | nb_connections++; |
| 861 | |
| 862 | start_wait_request(c, is_rtsp); |
| 863 | |
| 864 | return; |
| 865 | |
| 866 | fail: |
| 867 | if (c) { |
| 868 | av_free(c->buffer); |
| 869 | av_free(c); |
| 870 | } |
| 871 | closesocket(fd); |
| 872 | } |
| 873 | |
| 874 | static void close_connection(HTTPContext *c) |
| 875 | { |
| 876 | HTTPContext **cp, *c1; |
| 877 | int i, nb_streams; |
| 878 | AVFormatContext *ctx; |
| 879 | URLContext *h; |
| 880 | AVStream *st; |
| 881 | |
| 882 | /* remove connection from list */ |
| 883 | cp = &first_http_ctx; |
| 884 | while (*cp) { |
| 885 | c1 = *cp; |
| 886 | if (c1 == c) |
| 887 | *cp = c->next; |
| 888 | else |
| 889 | cp = &c1->next; |
| 890 | } |
| 891 | |
| 892 | /* remove references, if any (XXX: do it faster) */ |
| 893 | for(c1 = first_http_ctx; c1; c1 = c1->next) { |
| 894 | if (c1->rtsp_c == c) |
| 895 | c1->rtsp_c = NULL; |
| 896 | } |
| 897 | |
| 898 | /* remove connection associated resources */ |
| 899 | if (c->fd >= 0) |
| 900 | closesocket(c->fd); |
| 901 | if (c->fmt_in) { |
| 902 | /* close each frame parser */ |
| 903 | for(i=0;i<c->fmt_in->nb_streams;i++) { |
| 904 | st = c->fmt_in->streams[i]; |
| 905 | if (st->codec->codec) |
| 906 | avcodec_close(st->codec); |
| 907 | } |
| 908 | avformat_close_input(&c->fmt_in); |
| 909 | } |
| 910 | |
| 911 | /* free RTP output streams if any */ |
| 912 | nb_streams = 0; |
| 913 | if (c->stream) |
| 914 | nb_streams = c->stream->nb_streams; |
| 915 | |
| 916 | for(i=0;i<nb_streams;i++) { |
| 917 | ctx = c->rtp_ctx[i]; |
| 918 | if (ctx) { |
| 919 | av_write_trailer(ctx); |
| 920 | av_dict_free(&ctx->metadata); |
| 921 | av_free(ctx->streams[0]); |
| 922 | av_free(ctx); |
| 923 | } |
| 924 | h = c->rtp_handles[i]; |
| 925 | if (h) |
| 926 | ffurl_close(h); |
| 927 | } |
| 928 | |
| 929 | ctx = &c->fmt_ctx; |
| 930 | |
| 931 | if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) { |
| 932 | if (ctx->oformat) { |
| 933 | /* prepare header */ |
| 934 | if (avio_open_dyn_buf(&ctx->pb) >= 0) { |
| 935 | av_write_trailer(ctx); |
| 936 | av_freep(&c->pb_buffer); |
| 937 | avio_close_dyn_buf(ctx->pb, &c->pb_buffer); |
| 938 | } |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | for(i=0; i<ctx->nb_streams; i++) |
| 943 | av_free(ctx->streams[i]); |
| 944 | av_freep(&ctx->streams); |
| 945 | av_freep(&ctx->priv_data); |
| 946 | |
| 947 | if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE) |
| 948 | current_bandwidth -= c->stream->bandwidth; |
| 949 | |
| 950 | /* signal that there is no feed if we are the feeder socket */ |
| 951 | if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) { |
| 952 | c->stream->feed_opened = 0; |
| 953 | close(c->feed_fd); |
| 954 | } |
| 955 | |
| 956 | av_freep(&c->pb_buffer); |
| 957 | av_freep(&c->packet_buffer); |
| 958 | av_free(c->buffer); |
| 959 | av_free(c); |
| 960 | nb_connections--; |
| 961 | } |
| 962 | |
| 963 | static int handle_connection(HTTPContext *c) |
| 964 | { |
| 965 | int len, ret; |
| 966 | |
| 967 | switch(c->state) { |
| 968 | case HTTPSTATE_WAIT_REQUEST: |
| 969 | case RTSPSTATE_WAIT_REQUEST: |
| 970 | /* timeout ? */ |
| 971 | if ((c->timeout - cur_time) < 0) |
| 972 | return -1; |
| 973 | if (c->poll_entry->revents & (POLLERR | POLLHUP)) |
| 974 | return -1; |
| 975 | |
| 976 | /* no need to read if no events */ |
| 977 | if (!(c->poll_entry->revents & POLLIN)) |
| 978 | return 0; |
| 979 | /* read the data */ |
| 980 | read_loop: |
| 981 | len = recv(c->fd, c->buffer_ptr, 1, 0); |
| 982 | if (len < 0) { |
| 983 | if (ff_neterrno() != AVERROR(EAGAIN) && |
| 984 | ff_neterrno() != AVERROR(EINTR)) |
| 985 | return -1; |
| 986 | } else if (len == 0) { |
| 987 | return -1; |
| 988 | } else { |
| 989 | /* search for end of request. */ |
| 990 | uint8_t *ptr; |
| 991 | c->buffer_ptr += len; |
| 992 | ptr = c->buffer_ptr; |
| 993 | if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) || |
| 994 | (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) { |
| 995 | /* request found : parse it and reply */ |
| 996 | if (c->state == HTTPSTATE_WAIT_REQUEST) { |
| 997 | ret = http_parse_request(c); |
| 998 | } else { |
| 999 | ret = rtsp_parse_request(c); |
| 1000 | } |
| 1001 | if (ret < 0) |
| 1002 | return -1; |
| 1003 | } else if (ptr >= c->buffer_end) { |
| 1004 | /* request too long: cannot do anything */ |
| 1005 | return -1; |
| 1006 | } else goto read_loop; |
| 1007 | } |
| 1008 | break; |
| 1009 | |
| 1010 | case HTTPSTATE_SEND_HEADER: |
| 1011 | if (c->poll_entry->revents & (POLLERR | POLLHUP)) |
| 1012 | return -1; |
| 1013 | |
| 1014 | /* no need to write if no events */ |
| 1015 | if (!(c->poll_entry->revents & POLLOUT)) |
| 1016 | return 0; |
| 1017 | len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0); |
| 1018 | if (len < 0) { |
| 1019 | if (ff_neterrno() != AVERROR(EAGAIN) && |
| 1020 | ff_neterrno() != AVERROR(EINTR)) { |
| 1021 | goto close_connection; |
| 1022 | } |
| 1023 | } else { |
| 1024 | c->buffer_ptr += len; |
| 1025 | if (c->stream) |
| 1026 | c->stream->bytes_served += len; |
| 1027 | c->data_count += len; |
| 1028 | if (c->buffer_ptr >= c->buffer_end) { |
| 1029 | av_freep(&c->pb_buffer); |
| 1030 | /* if error, exit */ |
| 1031 | if (c->http_error) |
| 1032 | return -1; |
| 1033 | /* all the buffer was sent : synchronize to the incoming |
| 1034 | * stream */ |
| 1035 | c->state = HTTPSTATE_SEND_DATA_HEADER; |
| 1036 | c->buffer_ptr = c->buffer_end = c->buffer; |
| 1037 | } |
| 1038 | } |
| 1039 | break; |
| 1040 | |
| 1041 | case HTTPSTATE_SEND_DATA: |
| 1042 | case HTTPSTATE_SEND_DATA_HEADER: |
| 1043 | case HTTPSTATE_SEND_DATA_TRAILER: |
| 1044 | /* for packetized output, we consider we can always write (the |
| 1045 | input streams set the speed). It may be better to verify |
| 1046 | that we do not rely too much on the kernel queues */ |
| 1047 | if (!c->is_packetized) { |
| 1048 | if (c->poll_entry->revents & (POLLERR | POLLHUP)) |
| 1049 | return -1; |
| 1050 | |
| 1051 | /* no need to read if no events */ |
| 1052 | if (!(c->poll_entry->revents & POLLOUT)) |
| 1053 | return 0; |
| 1054 | } |
| 1055 | if (http_send_data(c) < 0) |
| 1056 | return -1; |
| 1057 | /* close connection if trailer sent */ |
| 1058 | if (c->state == HTTPSTATE_SEND_DATA_TRAILER) |
| 1059 | return -1; |
| 1060 | break; |
| 1061 | case HTTPSTATE_RECEIVE_DATA: |
| 1062 | /* no need to read if no events */ |
| 1063 | if (c->poll_entry->revents & (POLLERR | POLLHUP)) |
| 1064 | return -1; |
| 1065 | if (!(c->poll_entry->revents & POLLIN)) |
| 1066 | return 0; |
| 1067 | if (http_receive_data(c) < 0) |
| 1068 | return -1; |
| 1069 | break; |
| 1070 | case HTTPSTATE_WAIT_FEED: |
| 1071 | /* no need to read if no events */ |
| 1072 | if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP)) |
| 1073 | return -1; |
| 1074 | |
| 1075 | /* nothing to do, we'll be waken up by incoming feed packets */ |
| 1076 | break; |
| 1077 | |
| 1078 | case RTSPSTATE_SEND_REPLY: |
| 1079 | if (c->poll_entry->revents & (POLLERR | POLLHUP)) |
| 1080 | goto close_connection; |
| 1081 | /* no need to write if no events */ |
| 1082 | if (!(c->poll_entry->revents & POLLOUT)) |
| 1083 | return 0; |
| 1084 | len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0); |
| 1085 | if (len < 0) { |
| 1086 | if (ff_neterrno() != AVERROR(EAGAIN) && |
| 1087 | ff_neterrno() != AVERROR(EINTR)) { |
| 1088 | goto close_connection; |
| 1089 | } |
| 1090 | } else { |
| 1091 | c->buffer_ptr += len; |
| 1092 | c->data_count += len; |
| 1093 | if (c->buffer_ptr >= c->buffer_end) { |
| 1094 | /* all the buffer was sent : wait for a new request */ |
| 1095 | av_freep(&c->pb_buffer); |
| 1096 | start_wait_request(c, 1); |
| 1097 | } |
| 1098 | } |
| 1099 | break; |
| 1100 | case RTSPSTATE_SEND_PACKET: |
| 1101 | if (c->poll_entry->revents & (POLLERR | POLLHUP)) { |
| 1102 | av_freep(&c->packet_buffer); |
| 1103 | return -1; |
| 1104 | } |
| 1105 | /* no need to write if no events */ |
| 1106 | if (!(c->poll_entry->revents & POLLOUT)) |
| 1107 | return 0; |
| 1108 | len = send(c->fd, c->packet_buffer_ptr, |
| 1109 | c->packet_buffer_end - c->packet_buffer_ptr, 0); |
| 1110 | if (len < 0) { |
| 1111 | if (ff_neterrno() != AVERROR(EAGAIN) && |
| 1112 | ff_neterrno() != AVERROR(EINTR)) { |
| 1113 | /* error : close connection */ |
| 1114 | av_freep(&c->packet_buffer); |
| 1115 | return -1; |
| 1116 | } |
| 1117 | } else { |
| 1118 | c->packet_buffer_ptr += len; |
| 1119 | if (c->packet_buffer_ptr >= c->packet_buffer_end) { |
| 1120 | /* all the buffer was sent : wait for a new request */ |
| 1121 | av_freep(&c->packet_buffer); |
| 1122 | c->state = RTSPSTATE_WAIT_REQUEST; |
| 1123 | } |
| 1124 | } |
| 1125 | break; |
| 1126 | case HTTPSTATE_READY: |
| 1127 | /* nothing to do */ |
| 1128 | break; |
| 1129 | default: |
| 1130 | return -1; |
| 1131 | } |
| 1132 | return 0; |
| 1133 | |
| 1134 | close_connection: |
| 1135 | av_freep(&c->pb_buffer); |
| 1136 | return -1; |
| 1137 | } |
| 1138 | |
| 1139 | static int extract_rates(char *rates, int ratelen, const char *request) |
| 1140 | { |
| 1141 | const char *p; |
| 1142 | |
| 1143 | for (p = request; *p && *p != '\r' && *p != '\n'; ) { |
| 1144 | if (av_strncasecmp(p, "Pragma:", 7) == 0) { |
| 1145 | const char *q = p + 7; |
| 1146 | |
| 1147 | while (*q && *q != '\n' && av_isspace(*q)) |
| 1148 | q++; |
| 1149 | |
| 1150 | if (av_strncasecmp(q, "stream-switch-entry=", 20) == 0) { |
| 1151 | int stream_no; |
| 1152 | int rate_no; |
| 1153 | |
| 1154 | q += 20; |
| 1155 | |
| 1156 | memset(rates, 0xff, ratelen); |
| 1157 | |
| 1158 | while (1) { |
| 1159 | while (*q && *q != '\n' && *q != ':') |
| 1160 | q++; |
| 1161 | |
| 1162 | if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2) |
| 1163 | break; |
| 1164 | |
| 1165 | stream_no--; |
| 1166 | if (stream_no < ratelen && stream_no >= 0) |
| 1167 | rates[stream_no] = rate_no; |
| 1168 | |
| 1169 | while (*q && *q != '\n' && !av_isspace(*q)) |
| 1170 | q++; |
| 1171 | } |
| 1172 | |
| 1173 | return 1; |
| 1174 | } |
| 1175 | } |
| 1176 | p = strchr(p, '\n'); |
| 1177 | if (!p) |
| 1178 | break; |
| 1179 | |
| 1180 | p++; |
| 1181 | } |
| 1182 | |
| 1183 | return 0; |
| 1184 | } |
| 1185 | |
| 1186 | static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate) |
| 1187 | { |
| 1188 | int i; |
| 1189 | int best_bitrate = 100000000; |
| 1190 | int best = -1; |
| 1191 | |
| 1192 | for (i = 0; i < feed->nb_streams; i++) { |
| 1193 | AVCodecContext *feed_codec = feed->streams[i]->codec; |
| 1194 | |
| 1195 | if (feed_codec->codec_id != codec->codec_id || |
| 1196 | feed_codec->sample_rate != codec->sample_rate || |
| 1197 | feed_codec->width != codec->width || |
| 1198 | feed_codec->height != codec->height) |
| 1199 | continue; |
| 1200 | |
| 1201 | /* Potential stream */ |
| 1202 | |
| 1203 | /* We want the fastest stream less than bit_rate, or the slowest |
| 1204 | * faster than bit_rate |
| 1205 | */ |
| 1206 | |
| 1207 | if (feed_codec->bit_rate <= bit_rate) { |
| 1208 | if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) { |
| 1209 | best_bitrate = feed_codec->bit_rate; |
| 1210 | best = i; |
| 1211 | } |
| 1212 | } else { |
| 1213 | if (feed_codec->bit_rate < best_bitrate) { |
| 1214 | best_bitrate = feed_codec->bit_rate; |
| 1215 | best = i; |
| 1216 | } |
| 1217 | } |
| 1218 | } |
| 1219 | |
| 1220 | return best; |
| 1221 | } |
| 1222 | |
| 1223 | static int modify_current_stream(HTTPContext *c, char *rates) |
| 1224 | { |
| 1225 | int i; |
| 1226 | FFStream *req = c->stream; |
| 1227 | int action_required = 0; |
| 1228 | |
| 1229 | /* Not much we can do for a feed */ |
| 1230 | if (!req->feed) |
| 1231 | return 0; |
| 1232 | |
| 1233 | for (i = 0; i < req->nb_streams; i++) { |
| 1234 | AVCodecContext *codec = req->streams[i]->codec; |
| 1235 | |
| 1236 | switch(rates[i]) { |
| 1237 | case 0: |
| 1238 | c->switch_feed_streams[i] = req->feed_streams[i]; |
| 1239 | break; |
| 1240 | case 1: |
| 1241 | c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2); |
| 1242 | break; |
| 1243 | case 2: |
| 1244 | /* Wants off or slow */ |
| 1245 | c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4); |
| 1246 | #ifdef WANTS_OFF |
| 1247 | /* This doesn't work well when it turns off the only stream! */ |
| 1248 | c->switch_feed_streams[i] = -2; |
| 1249 | c->feed_streams[i] = -2; |
| 1250 | #endif |
| 1251 | break; |
| 1252 | } |
| 1253 | |
| 1254 | if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i]) |
| 1255 | action_required = 1; |
| 1256 | } |
| 1257 | |
| 1258 | return action_required; |
| 1259 | } |
| 1260 | |
| 1261 | static void get_word(char *buf, int buf_size, const char **pp) |
| 1262 | { |
| 1263 | const char *p; |
| 1264 | char *q; |
| 1265 | |
| 1266 | p = *pp; |
| 1267 | p += strspn(p, SPACE_CHARS); |
| 1268 | q = buf; |
| 1269 | while (!av_isspace(*p) && *p != '\0') { |
| 1270 | if ((q - buf) < buf_size - 1) |
| 1271 | *q++ = *p; |
| 1272 | p++; |
| 1273 | } |
| 1274 | if (buf_size > 0) |
| 1275 | *q = '\0'; |
| 1276 | *pp = p; |
| 1277 | } |
| 1278 | |
| 1279 | static void get_arg(char *buf, int buf_size, const char **pp) |
| 1280 | { |
| 1281 | const char *p; |
| 1282 | char *q; |
| 1283 | int quote; |
| 1284 | |
| 1285 | p = *pp; |
| 1286 | while (av_isspace(*p)) p++; |
| 1287 | q = buf; |
| 1288 | quote = 0; |
| 1289 | if (*p == '\"' || *p == '\'') |
| 1290 | quote = *p++; |
| 1291 | for(;;) { |
| 1292 | if (quote) { |
| 1293 | if (*p == quote) |
| 1294 | break; |
| 1295 | } else { |
| 1296 | if (av_isspace(*p)) |
| 1297 | break; |
| 1298 | } |
| 1299 | if (*p == '\0') |
| 1300 | break; |
| 1301 | if ((q - buf) < buf_size - 1) |
| 1302 | *q++ = *p; |
| 1303 | p++; |
| 1304 | } |
| 1305 | *q = '\0'; |
| 1306 | if (quote && *p == quote) |
| 1307 | p++; |
| 1308 | *pp = p; |
| 1309 | } |
| 1310 | |
| 1311 | static void parse_acl_row(FFStream *stream, FFStream* feed, IPAddressACL *ext_acl, |
| 1312 | const char *p, const char *filename, int line_num) |
| 1313 | { |
| 1314 | char arg[1024]; |
| 1315 | IPAddressACL acl; |
| 1316 | int errors = 0; |
| 1317 | |
| 1318 | get_arg(arg, sizeof(arg), &p); |
| 1319 | if (av_strcasecmp(arg, "allow") == 0) |
| 1320 | acl.action = IP_ALLOW; |
| 1321 | else if (av_strcasecmp(arg, "deny") == 0) |
| 1322 | acl.action = IP_DENY; |
| 1323 | else { |
| 1324 | fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n", |
| 1325 | filename, line_num, arg); |
| 1326 | errors++; |
| 1327 | } |
| 1328 | |
| 1329 | get_arg(arg, sizeof(arg), &p); |
| 1330 | |
| 1331 | if (resolve_host(&acl.first, arg) != 0) { |
| 1332 | fprintf(stderr, "%s:%d: ACL refers to invalid host or IP address '%s'\n", |
| 1333 | filename, line_num, arg); |
| 1334 | errors++; |
| 1335 | } else |
| 1336 | acl.last = acl.first; |
| 1337 | |
| 1338 | get_arg(arg, sizeof(arg), &p); |
| 1339 | |
| 1340 | if (arg[0]) { |
| 1341 | if (resolve_host(&acl.last, arg) != 0) { |
| 1342 | fprintf(stderr, "%s:%d: ACL refers to invalid host or IP address '%s'\n", |
| 1343 | filename, line_num, arg); |
| 1344 | errors++; |
| 1345 | } |
| 1346 | } |
| 1347 | |
| 1348 | if (!errors) { |
| 1349 | IPAddressACL *nacl = av_mallocz(sizeof(*nacl)); |
| 1350 | IPAddressACL **naclp = 0; |
| 1351 | |
| 1352 | acl.next = 0; |
| 1353 | *nacl = acl; |
| 1354 | |
| 1355 | if (stream) |
| 1356 | naclp = &stream->acl; |
| 1357 | else if (feed) |
| 1358 | naclp = &feed->acl; |
| 1359 | else if (ext_acl) |
| 1360 | naclp = &ext_acl; |
| 1361 | else { |
| 1362 | fprintf(stderr, "%s:%d: ACL found not in <stream> or <feed>\n", |
| 1363 | filename, line_num); |
| 1364 | errors++; |
| 1365 | } |
| 1366 | |
| 1367 | if (naclp) { |
| 1368 | while (*naclp) |
| 1369 | naclp = &(*naclp)->next; |
| 1370 | |
| 1371 | *naclp = nacl; |
| 1372 | } else |
| 1373 | av_free(nacl); |
| 1374 | } |
| 1375 | } |
| 1376 | |
| 1377 | |
| 1378 | static IPAddressACL* parse_dynamic_acl(FFStream *stream, HTTPContext *c) |
| 1379 | { |
| 1380 | FILE* f; |
| 1381 | char line[1024]; |
| 1382 | char cmd[1024]; |
| 1383 | IPAddressACL *acl = NULL; |
| 1384 | int line_num = 0; |
| 1385 | const char *p; |
| 1386 | |
| 1387 | f = fopen(stream->dynamic_acl, "r"); |
| 1388 | if (!f) { |
| 1389 | perror(stream->dynamic_acl); |
| 1390 | return NULL; |
| 1391 | } |
| 1392 | |
| 1393 | acl = av_mallocz(sizeof(IPAddressACL)); |
| 1394 | |
| 1395 | /* Build ACL */ |
| 1396 | for(;;) { |
| 1397 | if (fgets(line, sizeof(line), f) == NULL) |
| 1398 | break; |
| 1399 | line_num++; |
| 1400 | p = line; |
| 1401 | while (av_isspace(*p)) |
| 1402 | p++; |
| 1403 | if (*p == '\0' || *p == '#') |
| 1404 | continue; |
| 1405 | get_arg(cmd, sizeof(cmd), &p); |
| 1406 | |
| 1407 | if (!av_strcasecmp(cmd, "ACL")) |
| 1408 | parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl, line_num); |
| 1409 | } |
| 1410 | fclose(f); |
| 1411 | return acl; |
| 1412 | } |
| 1413 | |
| 1414 | |
| 1415 | static void free_acl_list(IPAddressACL *in_acl) |
| 1416 | { |
| 1417 | IPAddressACL *pacl,*pacl2; |
| 1418 | |
| 1419 | pacl = in_acl; |
| 1420 | while(pacl) { |
| 1421 | pacl2 = pacl; |
| 1422 | pacl = pacl->next; |
| 1423 | av_freep(pacl2); |
| 1424 | } |
| 1425 | } |
| 1426 | |
| 1427 | static int validate_acl_list(IPAddressACL *in_acl, HTTPContext *c) |
| 1428 | { |
| 1429 | enum IPAddressAction last_action = IP_DENY; |
| 1430 | IPAddressACL *acl; |
| 1431 | struct in_addr *src = &c->from_addr.sin_addr; |
| 1432 | unsigned long src_addr = src->s_addr; |
| 1433 | |
| 1434 | for (acl = in_acl; acl; acl = acl->next) { |
| 1435 | if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr) |
| 1436 | return (acl->action == IP_ALLOW) ? 1 : 0; |
| 1437 | last_action = acl->action; |
| 1438 | } |
| 1439 | |
| 1440 | /* Nothing matched, so return not the last action */ |
| 1441 | return (last_action == IP_DENY) ? 1 : 0; |
| 1442 | } |
| 1443 | |
| 1444 | static int validate_acl(FFStream *stream, HTTPContext *c) |
| 1445 | { |
| 1446 | int ret = 0; |
| 1447 | IPAddressACL *acl; |
| 1448 | |
| 1449 | |
| 1450 | /* if stream->acl is null validate_acl_list will return 1 */ |
| 1451 | ret = validate_acl_list(stream->acl, c); |
| 1452 | |
| 1453 | if (stream->dynamic_acl[0]) { |
| 1454 | acl = parse_dynamic_acl(stream, c); |
| 1455 | |
| 1456 | ret = validate_acl_list(acl, c); |
| 1457 | |
| 1458 | free_acl_list(acl); |
| 1459 | } |
| 1460 | |
| 1461 | return ret; |
| 1462 | } |
| 1463 | |
| 1464 | /* compute the real filename of a file by matching it without its |
| 1465 | extensions to all the stream's filenames */ |
| 1466 | static void compute_real_filename(char *filename, int max_size) |
| 1467 | { |
| 1468 | char file1[1024]; |
| 1469 | char file2[1024]; |
| 1470 | char *p; |
| 1471 | FFStream *stream; |
| 1472 | |
| 1473 | /* compute filename by matching without the file extensions */ |
| 1474 | av_strlcpy(file1, filename, sizeof(file1)); |
| 1475 | p = strrchr(file1, '.'); |
| 1476 | if (p) |
| 1477 | *p = '\0'; |
| 1478 | for(stream = first_stream; stream; stream = stream->next) { |
| 1479 | av_strlcpy(file2, stream->filename, sizeof(file2)); |
| 1480 | p = strrchr(file2, '.'); |
| 1481 | if (p) |
| 1482 | *p = '\0'; |
| 1483 | if (!strcmp(file1, file2)) { |
| 1484 | av_strlcpy(filename, stream->filename, max_size); |
| 1485 | break; |
| 1486 | } |
| 1487 | } |
| 1488 | } |
| 1489 | |
| 1490 | enum RedirType { |
| 1491 | REDIR_NONE, |
| 1492 | REDIR_ASX, |
| 1493 | REDIR_RAM, |
| 1494 | REDIR_ASF, |
| 1495 | REDIR_RTSP, |
| 1496 | REDIR_SDP, |
| 1497 | }; |
| 1498 | |
| 1499 | /* parse HTTP request and prepare header */ |
| 1500 | static int http_parse_request(HTTPContext *c) |
| 1501 | { |
| 1502 | const char *p; |
| 1503 | char *p1; |
| 1504 | enum RedirType redir_type; |
| 1505 | char cmd[32]; |
| 1506 | char info[1024], filename[1024]; |
| 1507 | char url[1024], *q; |
| 1508 | char protocol[32]; |
| 1509 | char msg[1024]; |
| 1510 | const char *mime_type; |
| 1511 | FFStream *stream; |
| 1512 | int i; |
| 1513 | char ratebuf[32]; |
| 1514 | const char *useragent = 0; |
| 1515 | |
| 1516 | p = c->buffer; |
| 1517 | get_word(cmd, sizeof(cmd), &p); |
| 1518 | av_strlcpy(c->method, cmd, sizeof(c->method)); |
| 1519 | |
| 1520 | if (!strcmp(cmd, "GET")) |
| 1521 | c->post = 0; |
| 1522 | else if (!strcmp(cmd, "POST")) |
| 1523 | c->post = 1; |
| 1524 | else |
| 1525 | return -1; |
| 1526 | |
| 1527 | get_word(url, sizeof(url), &p); |
| 1528 | av_strlcpy(c->url, url, sizeof(c->url)); |
| 1529 | |
| 1530 | get_word(protocol, sizeof(protocol), (const char **)&p); |
| 1531 | if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1")) |
| 1532 | return -1; |
| 1533 | |
| 1534 | av_strlcpy(c->protocol, protocol, sizeof(c->protocol)); |
| 1535 | |
| 1536 | if (ffserver_debug) |
| 1537 | http_log("%s - - New connection: %s %s\n", inet_ntoa(c->from_addr.sin_addr), cmd, url); |
| 1538 | |
| 1539 | /* find the filename and the optional info string in the request */ |
| 1540 | p1 = strchr(url, '?'); |
| 1541 | if (p1) { |
| 1542 | av_strlcpy(info, p1, sizeof(info)); |
| 1543 | *p1 = '\0'; |
| 1544 | } else |
| 1545 | info[0] = '\0'; |
| 1546 | |
| 1547 | av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1); |
| 1548 | |
| 1549 | for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) { |
| 1550 | if (av_strncasecmp(p, "User-Agent:", 11) == 0) { |
| 1551 | useragent = p + 11; |
| 1552 | if (*useragent && *useragent != '\n' && av_isspace(*useragent)) |
| 1553 | useragent++; |
| 1554 | break; |
| 1555 | } |
| 1556 | p = strchr(p, '\n'); |
| 1557 | if (!p) |
| 1558 | break; |
| 1559 | |
| 1560 | p++; |
| 1561 | } |
| 1562 | |
| 1563 | redir_type = REDIR_NONE; |
| 1564 | if (av_match_ext(filename, "asx")) { |
| 1565 | redir_type = REDIR_ASX; |
| 1566 | filename[strlen(filename)-1] = 'f'; |
| 1567 | } else if (av_match_ext(filename, "asf") && |
| 1568 | (!useragent || av_strncasecmp(useragent, "NSPlayer", 8) != 0)) { |
| 1569 | /* if this isn't WMP or lookalike, return the redirector file */ |
| 1570 | redir_type = REDIR_ASF; |
| 1571 | } else if (av_match_ext(filename, "rpm,ram")) { |
| 1572 | redir_type = REDIR_RAM; |
| 1573 | strcpy(filename + strlen(filename)-2, "m"); |
| 1574 | } else if (av_match_ext(filename, "rtsp")) { |
| 1575 | redir_type = REDIR_RTSP; |
| 1576 | compute_real_filename(filename, sizeof(filename) - 1); |
| 1577 | } else if (av_match_ext(filename, "sdp")) { |
| 1578 | redir_type = REDIR_SDP; |
| 1579 | compute_real_filename(filename, sizeof(filename) - 1); |
| 1580 | } |
| 1581 | |
| 1582 | // "redirect" / request to index.html |
| 1583 | if (!strlen(filename)) |
| 1584 | av_strlcpy(filename, "index.html", sizeof(filename) - 1); |
| 1585 | |
| 1586 | stream = first_stream; |
| 1587 | while (stream) { |
| 1588 | if (!strcmp(stream->filename, filename) && validate_acl(stream, c)) |
| 1589 | break; |
| 1590 | stream = stream->next; |
| 1591 | } |
| 1592 | if (!stream) { |
| 1593 | snprintf(msg, sizeof(msg), "File '%s' not found", url); |
| 1594 | http_log("File '%s' not found\n", url); |
| 1595 | goto send_error; |
| 1596 | } |
| 1597 | |
| 1598 | c->stream = stream; |
| 1599 | memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams)); |
| 1600 | memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams)); |
| 1601 | |
| 1602 | if (stream->stream_type == STREAM_TYPE_REDIRECT) { |
| 1603 | c->http_error = 301; |
| 1604 | q = c->buffer; |
| 1605 | snprintf(q, c->buffer_size, |
| 1606 | "HTTP/1.0 301 Moved\r\n" |
| 1607 | "Location: %s\r\n" |
| 1608 | "Content-type: text/html\r\n" |
| 1609 | "\r\n" |
| 1610 | "<html><head><title>Moved</title></head><body>\r\n" |
| 1611 | "You should be <a href=\"%s\">redirected</a>.\r\n" |
| 1612 | "</body></html>\r\n", stream->feed_filename, stream->feed_filename); |
| 1613 | q += strlen(q); |
| 1614 | /* prepare output buffer */ |
| 1615 | c->buffer_ptr = c->buffer; |
| 1616 | c->buffer_end = q; |
| 1617 | c->state = HTTPSTATE_SEND_HEADER; |
| 1618 | return 0; |
| 1619 | } |
| 1620 | |
| 1621 | /* If this is WMP, get the rate information */ |
| 1622 | if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) { |
| 1623 | if (modify_current_stream(c, ratebuf)) { |
| 1624 | for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) { |
| 1625 | if (c->switch_feed_streams[i] >= 0) |
| 1626 | c->switch_feed_streams[i] = -1; |
| 1627 | } |
| 1628 | } |
| 1629 | } |
| 1630 | |
| 1631 | if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE) |
| 1632 | current_bandwidth += stream->bandwidth; |
| 1633 | |
| 1634 | /* If already streaming this feed, do not let start another feeder. */ |
| 1635 | if (stream->feed_opened) { |
| 1636 | snprintf(msg, sizeof(msg), "This feed is already being received."); |
| 1637 | http_log("Feed '%s' already being received\n", stream->feed_filename); |
| 1638 | goto send_error; |
| 1639 | } |
| 1640 | |
| 1641 | if (c->post == 0 && max_bandwidth < current_bandwidth) { |
| 1642 | c->http_error = 503; |
| 1643 | q = c->buffer; |
| 1644 | snprintf(q, c->buffer_size, |
| 1645 | "HTTP/1.0 503 Server too busy\r\n" |
| 1646 | "Content-type: text/html\r\n" |
| 1647 | "\r\n" |
| 1648 | "<html><head><title>Too busy</title></head><body>\r\n" |
| 1649 | "<p>The server is too busy to serve your request at this time.</p>\r\n" |
| 1650 | "<p>The bandwidth being served (including your stream) is %"PRIu64"kbit/sec, " |
| 1651 | "and this exceeds the limit of %"PRIu64"kbit/sec.</p>\r\n" |
| 1652 | "</body></html>\r\n", current_bandwidth, max_bandwidth); |
| 1653 | q += strlen(q); |
| 1654 | /* prepare output buffer */ |
| 1655 | c->buffer_ptr = c->buffer; |
| 1656 | c->buffer_end = q; |
| 1657 | c->state = HTTPSTATE_SEND_HEADER; |
| 1658 | return 0; |
| 1659 | } |
| 1660 | |
| 1661 | if (redir_type != REDIR_NONE) { |
| 1662 | const char *hostinfo = 0; |
| 1663 | |
| 1664 | for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) { |
| 1665 | if (av_strncasecmp(p, "Host:", 5) == 0) { |
| 1666 | hostinfo = p + 5; |
| 1667 | break; |
| 1668 | } |
| 1669 | p = strchr(p, '\n'); |
| 1670 | if (!p) |
| 1671 | break; |
| 1672 | |
| 1673 | p++; |
| 1674 | } |
| 1675 | |
| 1676 | if (hostinfo) { |
| 1677 | char *eoh; |
| 1678 | char hostbuf[260]; |
| 1679 | |
| 1680 | while (av_isspace(*hostinfo)) |
| 1681 | hostinfo++; |
| 1682 | |
| 1683 | eoh = strchr(hostinfo, '\n'); |
| 1684 | if (eoh) { |
| 1685 | if (eoh[-1] == '\r') |
| 1686 | eoh--; |
| 1687 | |
| 1688 | if (eoh - hostinfo < sizeof(hostbuf) - 1) { |
| 1689 | memcpy(hostbuf, hostinfo, eoh - hostinfo); |
| 1690 | hostbuf[eoh - hostinfo] = 0; |
| 1691 | |
| 1692 | c->http_error = 200; |
| 1693 | q = c->buffer; |
| 1694 | switch(redir_type) { |
| 1695 | case REDIR_ASX: |
| 1696 | snprintf(q, c->buffer_size, |
| 1697 | "HTTP/1.0 200 ASX Follows\r\n" |
| 1698 | "Content-type: video/x-ms-asf\r\n" |
| 1699 | "\r\n" |
| 1700 | "<ASX Version=\"3\">\r\n" |
| 1701 | //"<!-- Autogenerated by ffserver -->\r\n" |
| 1702 | "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n" |
| 1703 | "</ASX>\r\n", hostbuf, filename, info); |
| 1704 | q += strlen(q); |
| 1705 | break; |
| 1706 | case REDIR_RAM: |
| 1707 | snprintf(q, c->buffer_size, |
| 1708 | "HTTP/1.0 200 RAM Follows\r\n" |
| 1709 | "Content-type: audio/x-pn-realaudio\r\n" |
| 1710 | "\r\n" |
| 1711 | "# Autogenerated by ffserver\r\n" |
| 1712 | "http://%s/%s%s\r\n", hostbuf, filename, info); |
| 1713 | q += strlen(q); |
| 1714 | break; |
| 1715 | case REDIR_ASF: |
| 1716 | snprintf(q, c->buffer_size, |
| 1717 | "HTTP/1.0 200 ASF Redirect follows\r\n" |
| 1718 | "Content-type: video/x-ms-asf\r\n" |
| 1719 | "\r\n" |
| 1720 | "[Reference]\r\n" |
| 1721 | "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info); |
| 1722 | q += strlen(q); |
| 1723 | break; |
| 1724 | case REDIR_RTSP: |
| 1725 | { |
| 1726 | char hostname[256], *p; |
| 1727 | /* extract only hostname */ |
| 1728 | av_strlcpy(hostname, hostbuf, sizeof(hostname)); |
| 1729 | p = strrchr(hostname, ':'); |
| 1730 | if (p) |
| 1731 | *p = '\0'; |
| 1732 | snprintf(q, c->buffer_size, |
| 1733 | "HTTP/1.0 200 RTSP Redirect follows\r\n" |
| 1734 | /* XXX: incorrect MIME type ? */ |
| 1735 | "Content-type: application/x-rtsp\r\n" |
| 1736 | "\r\n" |
| 1737 | "rtsp://%s:%d/%s\r\n", hostname, ntohs(my_rtsp_addr.sin_port), filename); |
| 1738 | q += strlen(q); |
| 1739 | } |
| 1740 | break; |
| 1741 | case REDIR_SDP: |
| 1742 | { |
| 1743 | uint8_t *sdp_data; |
| 1744 | int sdp_data_size; |
| 1745 | socklen_t len; |
| 1746 | struct sockaddr_in my_addr; |
| 1747 | |
| 1748 | snprintf(q, c->buffer_size, |
| 1749 | "HTTP/1.0 200 OK\r\n" |
| 1750 | "Content-type: application/sdp\r\n" |
| 1751 | "\r\n"); |
| 1752 | q += strlen(q); |
| 1753 | |
| 1754 | len = sizeof(my_addr); |
| 1755 | |
| 1756 | /* XXX: Should probably fail? */ |
| 1757 | if (getsockname(c->fd, (struct sockaddr *)&my_addr, &len)) |
| 1758 | http_log("getsockname() failed\n"); |
| 1759 | |
| 1760 | /* XXX: should use a dynamic buffer */ |
| 1761 | sdp_data_size = prepare_sdp_description(stream, |
| 1762 | &sdp_data, |
| 1763 | my_addr.sin_addr); |
| 1764 | if (sdp_data_size > 0) { |
| 1765 | memcpy(q, sdp_data, sdp_data_size); |
| 1766 | q += sdp_data_size; |
| 1767 | *q = '\0'; |
| 1768 | av_free(sdp_data); |
| 1769 | } |
| 1770 | } |
| 1771 | break; |
| 1772 | default: |
| 1773 | abort(); |
| 1774 | break; |
| 1775 | } |
| 1776 | |
| 1777 | /* prepare output buffer */ |
| 1778 | c->buffer_ptr = c->buffer; |
| 1779 | c->buffer_end = q; |
| 1780 | c->state = HTTPSTATE_SEND_HEADER; |
| 1781 | return 0; |
| 1782 | } |
| 1783 | } |
| 1784 | } |
| 1785 | |
| 1786 | snprintf(msg, sizeof(msg), "ASX/RAM file not handled"); |
| 1787 | goto send_error; |
| 1788 | } |
| 1789 | |
| 1790 | stream->conns_served++; |
| 1791 | |
| 1792 | /* XXX: add there authenticate and IP match */ |
| 1793 | |
| 1794 | if (c->post) { |
| 1795 | /* if post, it means a feed is being sent */ |
| 1796 | if (!stream->is_feed) { |
| 1797 | /* However it might be a status report from WMP! Let us log the |
| 1798 | * data as it might come handy one day. */ |
| 1799 | const char *logline = 0; |
| 1800 | int client_id = 0; |
| 1801 | |
| 1802 | for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) { |
| 1803 | if (av_strncasecmp(p, "Pragma: log-line=", 17) == 0) { |
| 1804 | logline = p; |
| 1805 | break; |
| 1806 | } |
| 1807 | if (av_strncasecmp(p, "Pragma: client-id=", 18) == 0) |
| 1808 | client_id = strtol(p + 18, 0, 10); |
| 1809 | p = strchr(p, '\n'); |
| 1810 | if (!p) |
| 1811 | break; |
| 1812 | |
| 1813 | p++; |
| 1814 | } |
| 1815 | |
| 1816 | if (logline) { |
| 1817 | char *eol = strchr(logline, '\n'); |
| 1818 | |
| 1819 | logline += 17; |
| 1820 | |
| 1821 | if (eol) { |
| 1822 | if (eol[-1] == '\r') |
| 1823 | eol--; |
| 1824 | http_log("%.*s\n", (int) (eol - logline), logline); |
| 1825 | c->suppress_log = 1; |
| 1826 | } |
| 1827 | } |
| 1828 | |
| 1829 | #ifdef DEBUG |
| 1830 | http_log("\nGot request:\n%s\n", c->buffer); |
| 1831 | #endif |
| 1832 | |
| 1833 | if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) { |
| 1834 | HTTPContext *wmpc; |
| 1835 | |
| 1836 | /* Now we have to find the client_id */ |
| 1837 | for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) { |
| 1838 | if (wmpc->wmp_client_id == client_id) |
| 1839 | break; |
| 1840 | } |
| 1841 | |
| 1842 | if (wmpc && modify_current_stream(wmpc, ratebuf)) |
| 1843 | wmpc->switch_pending = 1; |
| 1844 | } |
| 1845 | |
| 1846 | snprintf(msg, sizeof(msg), "POST command not handled"); |
| 1847 | c->stream = 0; |
| 1848 | goto send_error; |
| 1849 | } |
| 1850 | if (http_start_receive_data(c) < 0) { |
| 1851 | snprintf(msg, sizeof(msg), "could not open feed"); |
| 1852 | goto send_error; |
| 1853 | } |
| 1854 | c->http_error = 0; |
| 1855 | c->state = HTTPSTATE_RECEIVE_DATA; |
| 1856 | return 0; |
| 1857 | } |
| 1858 | |
| 1859 | #ifdef DEBUG |
| 1860 | if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0) |
| 1861 | http_log("\nGot request:\n%s\n", c->buffer); |
| 1862 | #endif |
| 1863 | |
| 1864 | if (c->stream->stream_type == STREAM_TYPE_STATUS) |
| 1865 | goto send_status; |
| 1866 | |
| 1867 | /* open input stream */ |
| 1868 | if (open_input_stream(c, info) < 0) { |
| 1869 | snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url); |
| 1870 | goto send_error; |
| 1871 | } |
| 1872 | |
| 1873 | /* prepare HTTP header */ |
| 1874 | c->buffer[0] = 0; |
| 1875 | av_strlcatf(c->buffer, c->buffer_size, "HTTP/1.0 200 OK\r\n"); |
| 1876 | mime_type = c->stream->fmt->mime_type; |
| 1877 | if (!mime_type) |
| 1878 | mime_type = "application/x-octet-stream"; |
| 1879 | av_strlcatf(c->buffer, c->buffer_size, "Pragma: no-cache\r\n"); |
| 1880 | |
| 1881 | /* for asf, we need extra headers */ |
| 1882 | if (!strcmp(c->stream->fmt->name,"asf_stream")) { |
| 1883 | /* Need to allocate a client id */ |
| 1884 | |
| 1885 | c->wmp_client_id = av_lfg_get(&random_state); |
| 1886 | |
| 1887 | av_strlcatf(c->buffer, c->buffer_size, "Server: Cougar 4.1.0.3923\r\nCache-Control: no-cache\r\nPragma: client-id=%d\r\nPragma: features=\"broadcast\"\r\n", c->wmp_client_id); |
| 1888 | } |
| 1889 | av_strlcatf(c->buffer, c->buffer_size, "Content-Type: %s\r\n", mime_type); |
| 1890 | av_strlcatf(c->buffer, c->buffer_size, "\r\n"); |
| 1891 | q = c->buffer + strlen(c->buffer); |
| 1892 | |
| 1893 | /* prepare output buffer */ |
| 1894 | c->http_error = 0; |
| 1895 | c->buffer_ptr = c->buffer; |
| 1896 | c->buffer_end = q; |
| 1897 | c->state = HTTPSTATE_SEND_HEADER; |
| 1898 | return 0; |
| 1899 | send_error: |
| 1900 | c->http_error = 404; |
| 1901 | q = c->buffer; |
| 1902 | htmlstrip(msg); |
| 1903 | snprintf(q, c->buffer_size, |
| 1904 | "HTTP/1.0 404 Not Found\r\n" |
| 1905 | "Content-type: text/html\r\n" |
| 1906 | "\r\n" |
| 1907 | "<html>\n" |
| 1908 | "<head><title>404 Not Found</title></head>\n" |
| 1909 | "<body>%s</body>\n" |
| 1910 | "</html>\n", msg); |
| 1911 | q += strlen(q); |
| 1912 | /* prepare output buffer */ |
| 1913 | c->buffer_ptr = c->buffer; |
| 1914 | c->buffer_end = q; |
| 1915 | c->state = HTTPSTATE_SEND_HEADER; |
| 1916 | return 0; |
| 1917 | send_status: |
| 1918 | compute_status(c); |
| 1919 | c->http_error = 200; /* horrible : we use this value to avoid |
| 1920 | going to the send data state */ |
| 1921 | c->state = HTTPSTATE_SEND_HEADER; |
| 1922 | return 0; |
| 1923 | } |
| 1924 | |
| 1925 | static void fmt_bytecount(AVIOContext *pb, int64_t count) |
| 1926 | { |
| 1927 | static const char suffix[] = " kMGTP"; |
| 1928 | const char *s; |
| 1929 | |
| 1930 | for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++); |
| 1931 | |
| 1932 | avio_printf(pb, "%"PRId64"%c", count, *s); |
| 1933 | } |
| 1934 | |
| 1935 | static void compute_status(HTTPContext *c) |
| 1936 | { |
| 1937 | HTTPContext *c1; |
| 1938 | FFStream *stream; |
| 1939 | char *p; |
| 1940 | time_t ti; |
| 1941 | int i, len; |
| 1942 | AVIOContext *pb; |
| 1943 | |
| 1944 | if (avio_open_dyn_buf(&pb) < 0) { |
| 1945 | /* XXX: return an error ? */ |
| 1946 | c->buffer_ptr = c->buffer; |
| 1947 | c->buffer_end = c->buffer; |
| 1948 | return; |
| 1949 | } |
| 1950 | |
| 1951 | avio_printf(pb, "HTTP/1.0 200 OK\r\n"); |
| 1952 | avio_printf(pb, "Content-type: text/html\r\n"); |
| 1953 | avio_printf(pb, "Pragma: no-cache\r\n"); |
| 1954 | avio_printf(pb, "\r\n"); |
| 1955 | |
| 1956 | avio_printf(pb, "<html><head><title>%s Status</title>\n", program_name); |
| 1957 | if (c->stream->feed_filename[0]) |
| 1958 | avio_printf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename); |
| 1959 | avio_printf(pb, "</head>\n<body>"); |
| 1960 | avio_printf(pb, "<h1>%s Status</h1>\n", program_name); |
| 1961 | /* format status */ |
| 1962 | avio_printf(pb, "<h2>Available Streams</h2>\n"); |
| 1963 | avio_printf(pb, "<table cellspacing=0 cellpadding=4>\n"); |
| 1964 | avio_printf(pb, "<tr><th valign=top>Path<th align=left>Served<br>Conns<th><br>bytes<th valign=top>Format<th>Bit rate<br>kbits/s<th align=left>Video<br>kbits/s<th><br>Codec<th align=left>Audio<br>kbits/s<th><br>Codec<th align=left valign=top>Feed\n"); |
| 1965 | stream = first_stream; |
| 1966 | while (stream) { |
| 1967 | char sfilename[1024]; |
| 1968 | char *eosf; |
| 1969 | |
| 1970 | if (stream->feed != stream) { |
| 1971 | av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10); |
| 1972 | eosf = sfilename + strlen(sfilename); |
| 1973 | if (eosf - sfilename >= 4) { |
| 1974 | if (strcmp(eosf - 4, ".asf") == 0) |
| 1975 | strcpy(eosf - 4, ".asx"); |
| 1976 | else if (strcmp(eosf - 3, ".rm") == 0) |
| 1977 | strcpy(eosf - 3, ".ram"); |
| 1978 | else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) { |
| 1979 | /* generate a sample RTSP director if |
| 1980 | unicast. Generate an SDP redirector if |
| 1981 | multicast */ |
| 1982 | eosf = strrchr(sfilename, '.'); |
| 1983 | if (!eosf) |
| 1984 | eosf = sfilename + strlen(sfilename); |
| 1985 | if (stream->is_multicast) |
| 1986 | strcpy(eosf, ".sdp"); |
| 1987 | else |
| 1988 | strcpy(eosf, ".rtsp"); |
| 1989 | } |
| 1990 | } |
| 1991 | |
| 1992 | avio_printf(pb, "<tr><td><a href=\"/%s\">%s</a> ", |
| 1993 | sfilename, stream->filename); |
| 1994 | avio_printf(pb, "<td align=right> %d <td align=right> ", |
| 1995 | stream->conns_served); |
| 1996 | fmt_bytecount(pb, stream->bytes_served); |
| 1997 | switch(stream->stream_type) { |
| 1998 | case STREAM_TYPE_LIVE: { |
| 1999 | int audio_bit_rate = 0; |
| 2000 | int video_bit_rate = 0; |
| 2001 | const char *audio_codec_name = ""; |
| 2002 | const char *video_codec_name = ""; |
| 2003 | const char *audio_codec_name_extra = ""; |
| 2004 | const char *video_codec_name_extra = ""; |
| 2005 | |
| 2006 | for(i=0;i<stream->nb_streams;i++) { |
| 2007 | AVStream *st = stream->streams[i]; |
| 2008 | AVCodec *codec = avcodec_find_encoder(st->codec->codec_id); |
| 2009 | switch(st->codec->codec_type) { |
| 2010 | case AVMEDIA_TYPE_AUDIO: |
| 2011 | audio_bit_rate += st->codec->bit_rate; |
| 2012 | if (codec) { |
| 2013 | if (*audio_codec_name) |
| 2014 | audio_codec_name_extra = "..."; |
| 2015 | audio_codec_name = codec->name; |
| 2016 | } |
| 2017 | break; |
| 2018 | case AVMEDIA_TYPE_VIDEO: |
| 2019 | video_bit_rate += st->codec->bit_rate; |
| 2020 | if (codec) { |
| 2021 | if (*video_codec_name) |
| 2022 | video_codec_name_extra = "..."; |
| 2023 | video_codec_name = codec->name; |
| 2024 | } |
| 2025 | break; |
| 2026 | case AVMEDIA_TYPE_DATA: |
| 2027 | video_bit_rate += st->codec->bit_rate; |
| 2028 | break; |
| 2029 | default: |
| 2030 | abort(); |
| 2031 | } |
| 2032 | } |
| 2033 | avio_printf(pb, "<td align=center> %s <td align=right> %d <td align=right> %d <td> %s %s <td align=right> %d <td> %s %s", |
| 2034 | stream->fmt->name, |
| 2035 | stream->bandwidth, |
| 2036 | video_bit_rate / 1000, video_codec_name, video_codec_name_extra, |
| 2037 | audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra); |
| 2038 | if (stream->feed) |
| 2039 | avio_printf(pb, "<td>%s", stream->feed->filename); |
| 2040 | else |
| 2041 | avio_printf(pb, "<td>%s", stream->feed_filename); |
| 2042 | avio_printf(pb, "\n"); |
| 2043 | } |
| 2044 | break; |
| 2045 | default: |
| 2046 | avio_printf(pb, "<td align=center> - <td align=right> - <td align=right> - <td><td align=right> - <td>\n"); |
| 2047 | break; |
| 2048 | } |
| 2049 | } |
| 2050 | stream = stream->next; |
| 2051 | } |
| 2052 | avio_printf(pb, "</table>\n"); |
| 2053 | |
| 2054 | stream = first_stream; |
| 2055 | while (stream) { |
| 2056 | if (stream->feed == stream) { |
| 2057 | avio_printf(pb, "<h2>Feed %s</h2>", stream->filename); |
| 2058 | if (stream->pid) { |
| 2059 | avio_printf(pb, "Running as pid %d.\n", stream->pid); |
| 2060 | |
| 2061 | #if defined(linux) |
| 2062 | { |
| 2063 | FILE *pid_stat; |
| 2064 | char ps_cmd[64]; |
| 2065 | |
| 2066 | /* This is somewhat linux specific I guess */ |
| 2067 | snprintf(ps_cmd, sizeof(ps_cmd), |
| 2068 | "ps -o \"%%cpu,cputime\" --no-headers %d", |
| 2069 | stream->pid); |
| 2070 | |
| 2071 | pid_stat = popen(ps_cmd, "r"); |
| 2072 | if (pid_stat) { |
| 2073 | char cpuperc[10]; |
| 2074 | char cpuused[64]; |
| 2075 | |
| 2076 | if (fscanf(pid_stat, "%9s %63s", cpuperc, |
| 2077 | cpuused) == 2) { |
| 2078 | avio_printf(pb, "Currently using %s%% of the cpu. Total time used %s.\n", |
| 2079 | cpuperc, cpuused); |
| 2080 | } |
| 2081 | fclose(pid_stat); |
| 2082 | } |
| 2083 | } |
| 2084 | #endif |
| 2085 | |
| 2086 | avio_printf(pb, "<p>"); |
| 2087 | } |
| 2088 | avio_printf(pb, "<table cellspacing=0 cellpadding=4><tr><th>Stream<th>type<th>kbits/s<th align=left>codec<th align=left>Parameters\n"); |
| 2089 | |
| 2090 | for (i = 0; i < stream->nb_streams; i++) { |
| 2091 | AVStream *st = stream->streams[i]; |
| 2092 | AVCodec *codec = avcodec_find_encoder(st->codec->codec_id); |
| 2093 | const char *type = "unknown"; |
| 2094 | char parameters[64]; |
| 2095 | |
| 2096 | parameters[0] = 0; |
| 2097 | |
| 2098 | switch(st->codec->codec_type) { |
| 2099 | case AVMEDIA_TYPE_AUDIO: |
| 2100 | type = "audio"; |
| 2101 | snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate); |
| 2102 | break; |
| 2103 | case AVMEDIA_TYPE_VIDEO: |
| 2104 | type = "video"; |
| 2105 | snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height, |
| 2106 | st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num); |
| 2107 | break; |
| 2108 | default: |
| 2109 | abort(); |
| 2110 | } |
| 2111 | avio_printf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n", |
| 2112 | i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters); |
| 2113 | } |
| 2114 | avio_printf(pb, "</table>\n"); |
| 2115 | |
| 2116 | } |
| 2117 | stream = stream->next; |
| 2118 | } |
| 2119 | |
| 2120 | /* connection status */ |
| 2121 | avio_printf(pb, "<h2>Connection Status</h2>\n"); |
| 2122 | |
| 2123 | avio_printf(pb, "Number of connections: %d / %d<br>\n", |
| 2124 | nb_connections, nb_max_connections); |
| 2125 | |
| 2126 | avio_printf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n", |
| 2127 | current_bandwidth, max_bandwidth); |
| 2128 | |
| 2129 | avio_printf(pb, "<table>\n"); |
| 2130 | avio_printf(pb, "<tr><th>#<th>File<th>IP<th>Proto<th>State<th>Target bits/sec<th>Actual bits/sec<th>Bytes transferred\n"); |
| 2131 | c1 = first_http_ctx; |
| 2132 | i = 0; |
| 2133 | while (c1) { |
| 2134 | int bitrate; |
| 2135 | int j; |
| 2136 | |
| 2137 | bitrate = 0; |
| 2138 | if (c1->stream) { |
| 2139 | for (j = 0; j < c1->stream->nb_streams; j++) { |
| 2140 | if (!c1->stream->feed) |
| 2141 | bitrate += c1->stream->streams[j]->codec->bit_rate; |
| 2142 | else if (c1->feed_streams[j] >= 0) |
| 2143 | bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate; |
| 2144 | } |
| 2145 | } |
| 2146 | |
| 2147 | i++; |
| 2148 | p = inet_ntoa(c1->from_addr.sin_addr); |
| 2149 | avio_printf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s<td align=right>", |
| 2150 | i, |
| 2151 | c1->stream ? c1->stream->filename : "", |
| 2152 | c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "", |
| 2153 | p, |
| 2154 | c1->protocol, |
| 2155 | http_state[c1->state]); |
| 2156 | fmt_bytecount(pb, bitrate); |
| 2157 | avio_printf(pb, "<td align=right>"); |
| 2158 | fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8); |
| 2159 | avio_printf(pb, "<td align=right>"); |
| 2160 | fmt_bytecount(pb, c1->data_count); |
| 2161 | avio_printf(pb, "\n"); |
| 2162 | c1 = c1->next; |
| 2163 | } |
| 2164 | avio_printf(pb, "</table>\n"); |
| 2165 | |
| 2166 | /* date */ |
| 2167 | ti = time(NULL); |
| 2168 | p = ctime(&ti); |
| 2169 | avio_printf(pb, "<hr size=1 noshade>Generated at %s", p); |
| 2170 | avio_printf(pb, "</body>\n</html>\n"); |
| 2171 | |
| 2172 | len = avio_close_dyn_buf(pb, &c->pb_buffer); |
| 2173 | c->buffer_ptr = c->pb_buffer; |
| 2174 | c->buffer_end = c->pb_buffer + len; |
| 2175 | } |
| 2176 | |
| 2177 | static int open_input_stream(HTTPContext *c, const char *info) |
| 2178 | { |
| 2179 | char buf[128]; |
| 2180 | char input_filename[1024]; |
| 2181 | AVFormatContext *s = NULL; |
| 2182 | int buf_size, i, ret; |
| 2183 | int64_t stream_pos; |
| 2184 | |
| 2185 | /* find file name */ |
| 2186 | if (c->stream->feed) { |
| 2187 | strcpy(input_filename, c->stream->feed->feed_filename); |
| 2188 | buf_size = FFM_PACKET_SIZE; |
| 2189 | /* compute position (absolute time) */ |
| 2190 | if (av_find_info_tag(buf, sizeof(buf), "date", info)) { |
| 2191 | if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0) { |
| 2192 | http_log("Invalid date specification '%s' for stream\n", buf); |
| 2193 | return ret; |
| 2194 | } |
| 2195 | } else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) { |
| 2196 | int prebuffer = strtol(buf, 0, 10); |
| 2197 | stream_pos = av_gettime() - prebuffer * (int64_t)1000000; |
| 2198 | } else |
| 2199 | stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000; |
| 2200 | } else { |
| 2201 | strcpy(input_filename, c->stream->feed_filename); |
| 2202 | buf_size = 0; |
| 2203 | /* compute position (relative time) */ |
| 2204 | if (av_find_info_tag(buf, sizeof(buf), "date", info)) { |
| 2205 | if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0) { |
| 2206 | http_log("Invalid date specification '%s' for stream\n", buf); |
| 2207 | return ret; |
| 2208 | } |
| 2209 | } else |
| 2210 | stream_pos = 0; |
| 2211 | } |
| 2212 | if (!input_filename[0]) { |
| 2213 | http_log("No filename was specified for stream\n"); |
| 2214 | return AVERROR(EINVAL); |
| 2215 | } |
| 2216 | |
| 2217 | /* open stream */ |
| 2218 | if ((ret = avformat_open_input(&s, input_filename, c->stream->ifmt, &c->stream->in_opts)) < 0) { |
| 2219 | http_log("Could not open input '%s': %s\n", input_filename, av_err2str(ret)); |
| 2220 | return ret; |
| 2221 | } |
| 2222 | |
| 2223 | /* set buffer size */ |
| 2224 | if (buf_size > 0) ffio_set_buf_size(s->pb, buf_size); |
| 2225 | |
| 2226 | s->flags |= AVFMT_FLAG_GENPTS; |
| 2227 | c->fmt_in = s; |
| 2228 | if (strcmp(s->iformat->name, "ffm") && |
| 2229 | (ret = avformat_find_stream_info(c->fmt_in, NULL)) < 0) { |
| 2230 | http_log("Could not find stream info for input '%s'\n", input_filename); |
| 2231 | avformat_close_input(&s); |
| 2232 | return ret; |
| 2233 | } |
| 2234 | |
| 2235 | /* choose stream as clock source (we favor the video stream if |
| 2236 | * present) for packet sending */ |
| 2237 | c->pts_stream_index = 0; |
| 2238 | for(i=0;i<c->stream->nb_streams;i++) { |
| 2239 | if (c->pts_stream_index == 0 && |
| 2240 | c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) { |
| 2241 | c->pts_stream_index = i; |
| 2242 | } |
| 2243 | } |
| 2244 | |
| 2245 | if (c->fmt_in->iformat->read_seek) |
| 2246 | av_seek_frame(c->fmt_in, -1, stream_pos, 0); |
| 2247 | /* set the start time (needed for maxtime and RTP packet timing) */ |
| 2248 | c->start_time = cur_time; |
| 2249 | c->first_pts = AV_NOPTS_VALUE; |
| 2250 | return 0; |
| 2251 | } |
| 2252 | |
| 2253 | /* return the server clock (in us) */ |
| 2254 | static int64_t get_server_clock(HTTPContext *c) |
| 2255 | { |
| 2256 | /* compute current pts value from system time */ |
| 2257 | return (cur_time - c->start_time) * 1000; |
| 2258 | } |
| 2259 | |
| 2260 | /* return the estimated time at which the current packet must be sent |
| 2261 | (in us) */ |
| 2262 | static int64_t get_packet_send_clock(HTTPContext *c) |
| 2263 | { |
| 2264 | int bytes_left, bytes_sent, frame_bytes; |
| 2265 | |
| 2266 | frame_bytes = c->cur_frame_bytes; |
| 2267 | if (frame_bytes <= 0) |
| 2268 | return c->cur_pts; |
| 2269 | else { |
| 2270 | bytes_left = c->buffer_end - c->buffer_ptr; |
| 2271 | bytes_sent = frame_bytes - bytes_left; |
| 2272 | return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes; |
| 2273 | } |
| 2274 | } |
| 2275 | |
| 2276 | |
| 2277 | static int http_prepare_data(HTTPContext *c) |
| 2278 | { |
| 2279 | int i, len, ret; |
| 2280 | AVFormatContext *ctx; |
| 2281 | |
| 2282 | av_freep(&c->pb_buffer); |
| 2283 | switch(c->state) { |
| 2284 | case HTTPSTATE_SEND_DATA_HEADER: |
| 2285 | ctx = avformat_alloc_context(); |
| 2286 | c->fmt_ctx = *ctx; |
| 2287 | av_freep(&ctx); |
| 2288 | av_dict_copy(&(c->fmt_ctx.metadata), c->stream->metadata, 0); |
| 2289 | c->fmt_ctx.streams = av_mallocz_array(c->stream->nb_streams, sizeof(AVStream *)); |
| 2290 | |
| 2291 | for(i=0;i<c->stream->nb_streams;i++) { |
| 2292 | AVStream *src; |
| 2293 | c->fmt_ctx.streams[i] = av_mallocz(sizeof(AVStream)); |
| 2294 | /* if file or feed, then just take streams from FFStream struct */ |
| 2295 | if (!c->stream->feed || |
| 2296 | c->stream->feed == c->stream) |
| 2297 | src = c->stream->streams[i]; |
| 2298 | else |
| 2299 | src = c->stream->feed->streams[c->stream->feed_streams[i]]; |
| 2300 | |
| 2301 | *(c->fmt_ctx.streams[i]) = *src; |
| 2302 | c->fmt_ctx.streams[i]->priv_data = 0; |
| 2303 | /* XXX: should be done in AVStream, not in codec */ |
| 2304 | c->fmt_ctx.streams[i]->codec->frame_number = 0; |
| 2305 | } |
| 2306 | /* set output format parameters */ |
| 2307 | c->fmt_ctx.oformat = c->stream->fmt; |
| 2308 | c->fmt_ctx.nb_streams = c->stream->nb_streams; |
| 2309 | |
| 2310 | c->got_key_frame = 0; |
| 2311 | |
| 2312 | /* prepare header and save header data in a stream */ |
| 2313 | if (avio_open_dyn_buf(&c->fmt_ctx.pb) < 0) { |
| 2314 | /* XXX: potential leak */ |
| 2315 | return -1; |
| 2316 | } |
| 2317 | c->fmt_ctx.pb->seekable = 0; |
| 2318 | |
| 2319 | /* |
| 2320 | * HACK to avoid MPEG-PS muxer to spit many underflow errors |
| 2321 | * Default value from FFmpeg |
| 2322 | * Try to set it using configuration option |
| 2323 | */ |
| 2324 | c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE); |
| 2325 | |
| 2326 | if ((ret = avformat_write_header(&c->fmt_ctx, NULL)) < 0) { |
| 2327 | http_log("Error writing output header for stream '%s': %s\n", |
| 2328 | c->stream->filename, av_err2str(ret)); |
| 2329 | return ret; |
| 2330 | } |
| 2331 | av_dict_free(&c->fmt_ctx.metadata); |
| 2332 | |
| 2333 | len = avio_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer); |
| 2334 | c->buffer_ptr = c->pb_buffer; |
| 2335 | c->buffer_end = c->pb_buffer + len; |
| 2336 | |
| 2337 | c->state = HTTPSTATE_SEND_DATA; |
| 2338 | c->last_packet_sent = 0; |
| 2339 | break; |
| 2340 | case HTTPSTATE_SEND_DATA: |
| 2341 | /* find a new packet */ |
| 2342 | /* read a packet from the input stream */ |
| 2343 | if (c->stream->feed) |
| 2344 | ffm_set_write_index(c->fmt_in, |
| 2345 | c->stream->feed->feed_write_index, |
| 2346 | c->stream->feed->feed_size); |
| 2347 | |
| 2348 | if (c->stream->max_time && |
| 2349 | c->stream->max_time + c->start_time - cur_time < 0) |
| 2350 | /* We have timed out */ |
| 2351 | c->state = HTTPSTATE_SEND_DATA_TRAILER; |
| 2352 | else { |
| 2353 | AVPacket pkt; |
| 2354 | redo: |
| 2355 | ret = av_read_frame(c->fmt_in, &pkt); |
| 2356 | if (ret < 0) { |
| 2357 | if (c->stream->feed) { |
| 2358 | /* if coming from feed, it means we reached the end of the |
| 2359 | ffm file, so must wait for more data */ |
| 2360 | c->state = HTTPSTATE_WAIT_FEED; |
| 2361 | return 1; /* state changed */ |
| 2362 | } else if (ret == AVERROR(EAGAIN)) { |
| 2363 | /* input not ready, come back later */ |
| 2364 | return 0; |
| 2365 | } else { |
| 2366 | if (c->stream->loop) { |
| 2367 | avformat_close_input(&c->fmt_in); |
| 2368 | if (open_input_stream(c, "") < 0) |
| 2369 | goto no_loop; |
| 2370 | goto redo; |
| 2371 | } else { |
| 2372 | no_loop: |
| 2373 | /* must send trailer now because EOF or error */ |
| 2374 | c->state = HTTPSTATE_SEND_DATA_TRAILER; |
| 2375 | } |
| 2376 | } |
| 2377 | } else { |
| 2378 | int source_index = pkt.stream_index; |
| 2379 | /* update first pts if needed */ |
| 2380 | if (c->first_pts == AV_NOPTS_VALUE) { |
| 2381 | c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q); |
| 2382 | c->start_time = cur_time; |
| 2383 | } |
| 2384 | /* send it to the appropriate stream */ |
| 2385 | if (c->stream->feed) { |
| 2386 | /* if coming from a feed, select the right stream */ |
| 2387 | if (c->switch_pending) { |
| 2388 | c->switch_pending = 0; |
| 2389 | for(i=0;i<c->stream->nb_streams;i++) { |
| 2390 | if (c->switch_feed_streams[i] == pkt.stream_index) |
| 2391 | if (pkt.flags & AV_PKT_FLAG_KEY) |
| 2392 | c->switch_feed_streams[i] = -1; |
| 2393 | if (c->switch_feed_streams[i] >= 0) |
| 2394 | c->switch_pending = 1; |
| 2395 | } |
| 2396 | } |
| 2397 | for(i=0;i<c->stream->nb_streams;i++) { |
| 2398 | if (c->stream->feed_streams[i] == pkt.stream_index) { |
| 2399 | AVStream *st = c->fmt_in->streams[source_index]; |
| 2400 | pkt.stream_index = i; |
| 2401 | if (pkt.flags & AV_PKT_FLAG_KEY && |
| 2402 | (st->codec->codec_type == AVMEDIA_TYPE_VIDEO || |
| 2403 | c->stream->nb_streams == 1)) |
| 2404 | c->got_key_frame = 1; |
| 2405 | if (!c->stream->send_on_key || c->got_key_frame) |
| 2406 | goto send_it; |
| 2407 | } |
| 2408 | } |
| 2409 | } else { |
| 2410 | AVCodecContext *codec; |
| 2411 | AVStream *ist, *ost; |
| 2412 | send_it: |
| 2413 | ist = c->fmt_in->streams[source_index]; |
| 2414 | /* specific handling for RTP: we use several |
| 2415 | * output streams (one for each RTP connection). |
| 2416 | * XXX: need more abstract handling */ |
| 2417 | if (c->is_packetized) { |
| 2418 | /* compute send time and duration */ |
| 2419 | c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q); |
| 2420 | c->cur_pts -= c->first_pts; |
| 2421 | c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q); |
| 2422 | /* find RTP context */ |
| 2423 | c->packet_stream_index = pkt.stream_index; |
| 2424 | ctx = c->rtp_ctx[c->packet_stream_index]; |
| 2425 | if(!ctx) { |
| 2426 | av_free_packet(&pkt); |
| 2427 | break; |
| 2428 | } |
| 2429 | codec = ctx->streams[0]->codec; |
| 2430 | /* only one stream per RTP connection */ |
| 2431 | pkt.stream_index = 0; |
| 2432 | } else { |
| 2433 | ctx = &c->fmt_ctx; |
| 2434 | /* Fudge here */ |
| 2435 | codec = ctx->streams[pkt.stream_index]->codec; |
| 2436 | } |
| 2437 | |
| 2438 | if (c->is_packetized) { |
| 2439 | int max_packet_size; |
| 2440 | if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) |
| 2441 | max_packet_size = RTSP_TCP_MAX_PACKET_SIZE; |
| 2442 | else |
| 2443 | max_packet_size = c->rtp_handles[c->packet_stream_index]->max_packet_size; |
| 2444 | ret = ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size); |
| 2445 | } else { |
| 2446 | ret = avio_open_dyn_buf(&ctx->pb); |
| 2447 | } |
| 2448 | if (ret < 0) { |
| 2449 | /* XXX: potential leak */ |
| 2450 | return -1; |
| 2451 | } |
| 2452 | ost = ctx->streams[pkt.stream_index]; |
| 2453 | |
| 2454 | ctx->pb->seekable = 0; |
| 2455 | if (pkt.dts != AV_NOPTS_VALUE) |
| 2456 | pkt.dts = av_rescale_q(pkt.dts, ist->time_base, ost->time_base); |
| 2457 | if (pkt.pts != AV_NOPTS_VALUE) |
| 2458 | pkt.pts = av_rescale_q(pkt.pts, ist->time_base, ost->time_base); |
| 2459 | pkt.duration = av_rescale_q(pkt.duration, ist->time_base, ost->time_base); |
| 2460 | if ((ret = av_write_frame(ctx, &pkt)) < 0) { |
| 2461 | http_log("Error writing frame to output for stream '%s': %s\n", |
| 2462 | c->stream->filename, av_err2str(ret)); |
| 2463 | c->state = HTTPSTATE_SEND_DATA_TRAILER; |
| 2464 | } |
| 2465 | |
| 2466 | len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer); |
| 2467 | c->cur_frame_bytes = len; |
| 2468 | c->buffer_ptr = c->pb_buffer; |
| 2469 | c->buffer_end = c->pb_buffer + len; |
| 2470 | |
| 2471 | codec->frame_number++; |
| 2472 | if (len == 0) { |
| 2473 | av_free_packet(&pkt); |
| 2474 | goto redo; |
| 2475 | } |
| 2476 | } |
| 2477 | av_free_packet(&pkt); |
| 2478 | } |
| 2479 | } |
| 2480 | break; |
| 2481 | default: |
| 2482 | case HTTPSTATE_SEND_DATA_TRAILER: |
| 2483 | /* last packet test ? */ |
| 2484 | if (c->last_packet_sent || c->is_packetized) |
| 2485 | return -1; |
| 2486 | ctx = &c->fmt_ctx; |
| 2487 | /* prepare header */ |
| 2488 | if (avio_open_dyn_buf(&ctx->pb) < 0) { |
| 2489 | /* XXX: potential leak */ |
| 2490 | return -1; |
| 2491 | } |
| 2492 | c->fmt_ctx.pb->seekable = 0; |
| 2493 | av_write_trailer(ctx); |
| 2494 | len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer); |
| 2495 | c->buffer_ptr = c->pb_buffer; |
| 2496 | c->buffer_end = c->pb_buffer + len; |
| 2497 | |
| 2498 | c->last_packet_sent = 1; |
| 2499 | break; |
| 2500 | } |
| 2501 | return 0; |
| 2502 | } |
| 2503 | |
| 2504 | /* should convert the format at the same time */ |
| 2505 | /* send data starting at c->buffer_ptr to the output connection |
| 2506 | * (either UDP or TCP) */ |
| 2507 | static int http_send_data(HTTPContext *c) |
| 2508 | { |
| 2509 | int len, ret; |
| 2510 | |
| 2511 | for(;;) { |
| 2512 | if (c->buffer_ptr >= c->buffer_end) { |
| 2513 | ret = http_prepare_data(c); |
| 2514 | if (ret < 0) |
| 2515 | return -1; |
| 2516 | else if (ret != 0) |
| 2517 | /* state change requested */ |
| 2518 | break; |
| 2519 | } else { |
| 2520 | if (c->is_packetized) { |
| 2521 | /* RTP data output */ |
| 2522 | len = c->buffer_end - c->buffer_ptr; |
| 2523 | if (len < 4) { |
| 2524 | /* fail safe - should never happen */ |
| 2525 | fail1: |
| 2526 | c->buffer_ptr = c->buffer_end; |
| 2527 | return 0; |
| 2528 | } |
| 2529 | len = (c->buffer_ptr[0] << 24) | |
| 2530 | (c->buffer_ptr[1] << 16) | |
| 2531 | (c->buffer_ptr[2] << 8) | |
| 2532 | (c->buffer_ptr[3]); |
| 2533 | if (len > (c->buffer_end - c->buffer_ptr)) |
| 2534 | goto fail1; |
| 2535 | if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) { |
| 2536 | /* nothing to send yet: we can wait */ |
| 2537 | return 0; |
| 2538 | } |
| 2539 | |
| 2540 | c->data_count += len; |
| 2541 | update_datarate(&c->datarate, c->data_count); |
| 2542 | if (c->stream) |
| 2543 | c->stream->bytes_served += len; |
| 2544 | |
| 2545 | if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) { |
| 2546 | /* RTP packets are sent inside the RTSP TCP connection */ |
| 2547 | AVIOContext *pb; |
| 2548 | int interleaved_index, size; |
| 2549 | uint8_t header[4]; |
| 2550 | HTTPContext *rtsp_c; |
| 2551 | |
| 2552 | rtsp_c = c->rtsp_c; |
| 2553 | /* if no RTSP connection left, error */ |
| 2554 | if (!rtsp_c) |
| 2555 | return -1; |
| 2556 | /* if already sending something, then wait. */ |
| 2557 | if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST) |
| 2558 | break; |
| 2559 | if (avio_open_dyn_buf(&pb) < 0) |
| 2560 | goto fail1; |
| 2561 | interleaved_index = c->packet_stream_index * 2; |
| 2562 | /* RTCP packets are sent at odd indexes */ |
| 2563 | if (c->buffer_ptr[1] == 200) |
| 2564 | interleaved_index++; |
| 2565 | /* write RTSP TCP header */ |
| 2566 | header[0] = '$'; |
| 2567 | header[1] = interleaved_index; |
| 2568 | header[2] = len >> 8; |
| 2569 | header[3] = len; |
| 2570 | avio_write(pb, header, 4); |
| 2571 | /* write RTP packet data */ |
| 2572 | c->buffer_ptr += 4; |
| 2573 | avio_write(pb, c->buffer_ptr, len); |
| 2574 | size = avio_close_dyn_buf(pb, &c->packet_buffer); |
| 2575 | /* prepare asynchronous TCP sending */ |
| 2576 | rtsp_c->packet_buffer_ptr = c->packet_buffer; |
| 2577 | rtsp_c->packet_buffer_end = c->packet_buffer + size; |
| 2578 | c->buffer_ptr += len; |
| 2579 | |
| 2580 | /* send everything we can NOW */ |
| 2581 | len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr, |
| 2582 | rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0); |
| 2583 | if (len > 0) |
| 2584 | rtsp_c->packet_buffer_ptr += len; |
| 2585 | if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) { |
| 2586 | /* if we could not send all the data, we will |
| 2587 | send it later, so a new state is needed to |
| 2588 | "lock" the RTSP TCP connection */ |
| 2589 | rtsp_c->state = RTSPSTATE_SEND_PACKET; |
| 2590 | break; |
| 2591 | } else |
| 2592 | /* all data has been sent */ |
| 2593 | av_freep(&c->packet_buffer); |
| 2594 | } else { |
| 2595 | /* send RTP packet directly in UDP */ |
| 2596 | c->buffer_ptr += 4; |
| 2597 | ffurl_write(c->rtp_handles[c->packet_stream_index], |
| 2598 | c->buffer_ptr, len); |
| 2599 | c->buffer_ptr += len; |
| 2600 | /* here we continue as we can send several packets per 10 ms slot */ |
| 2601 | } |
| 2602 | } else { |
| 2603 | /* TCP data output */ |
| 2604 | len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0); |
| 2605 | if (len < 0) { |
| 2606 | if (ff_neterrno() != AVERROR(EAGAIN) && |
| 2607 | ff_neterrno() != AVERROR(EINTR)) |
| 2608 | /* error : close connection */ |
| 2609 | return -1; |
| 2610 | else |
| 2611 | return 0; |
| 2612 | } else |
| 2613 | c->buffer_ptr += len; |
| 2614 | |
| 2615 | c->data_count += len; |
| 2616 | update_datarate(&c->datarate, c->data_count); |
| 2617 | if (c->stream) |
| 2618 | c->stream->bytes_served += len; |
| 2619 | break; |
| 2620 | } |
| 2621 | } |
| 2622 | } /* for(;;) */ |
| 2623 | return 0; |
| 2624 | } |
| 2625 | |
| 2626 | static int http_start_receive_data(HTTPContext *c) |
| 2627 | { |
| 2628 | int fd; |
| 2629 | int ret; |
| 2630 | |
| 2631 | if (c->stream->feed_opened) { |
| 2632 | http_log("Stream feed '%s' was not opened\n", c->stream->feed_filename); |
| 2633 | return AVERROR(EINVAL); |
| 2634 | } |
| 2635 | |
| 2636 | /* Don't permit writing to this one */ |
| 2637 | if (c->stream->readonly) { |
| 2638 | http_log("Cannot write to read-only file '%s'\n", c->stream->feed_filename); |
| 2639 | return AVERROR(EINVAL); |
| 2640 | } |
| 2641 | |
| 2642 | /* open feed */ |
| 2643 | fd = open(c->stream->feed_filename, O_RDWR); |
| 2644 | if (fd < 0) { |
| 2645 | ret = AVERROR(errno); |
| 2646 | http_log("Could not open feed file '%s': %s\n", |
| 2647 | c->stream->feed_filename, strerror(errno)); |
| 2648 | return ret; |
| 2649 | } |
| 2650 | c->feed_fd = fd; |
| 2651 | |
| 2652 | if (c->stream->truncate) { |
| 2653 | /* truncate feed file */ |
| 2654 | ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE); |
| 2655 | http_log("Truncating feed file '%s'\n", c->stream->feed_filename); |
| 2656 | if (ftruncate(c->feed_fd, FFM_PACKET_SIZE) < 0) { |
| 2657 | ret = AVERROR(errno); |
| 2658 | http_log("Error truncating feed file '%s': %s\n", |
| 2659 | c->stream->feed_filename, strerror(errno)); |
| 2660 | return ret; |
| 2661 | } |
| 2662 | } else { |
| 2663 | ret = ffm_read_write_index(fd); |
| 2664 | if (ret < 0) { |
| 2665 | http_log("Error reading write index from feed file '%s': %s\n", |
| 2666 | c->stream->feed_filename, strerror(errno)); |
| 2667 | return ret; |
| 2668 | } else { |
| 2669 | c->stream->feed_write_index = ret; |
| 2670 | } |
| 2671 | } |
| 2672 | |
| 2673 | c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE); |
| 2674 | c->stream->feed_size = lseek(fd, 0, SEEK_END); |
| 2675 | lseek(fd, 0, SEEK_SET); |
| 2676 | |
| 2677 | /* init buffer input */ |
| 2678 | c->buffer_ptr = c->buffer; |
| 2679 | c->buffer_end = c->buffer + FFM_PACKET_SIZE; |
| 2680 | c->stream->feed_opened = 1; |
| 2681 | c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked"); |
| 2682 | return 0; |
| 2683 | } |
| 2684 | |
| 2685 | static int http_receive_data(HTTPContext *c) |
| 2686 | { |
| 2687 | HTTPContext *c1; |
| 2688 | int len, loop_run = 0; |
| 2689 | |
| 2690 | while (c->chunked_encoding && !c->chunk_size && |
| 2691 | c->buffer_end > c->buffer_ptr) { |
| 2692 | /* read chunk header, if present */ |
| 2693 | len = recv(c->fd, c->buffer_ptr, 1, 0); |
| 2694 | |
| 2695 | if (len < 0) { |
| 2696 | if (ff_neterrno() != AVERROR(EAGAIN) && |
| 2697 | ff_neterrno() != AVERROR(EINTR)) |
| 2698 | /* error : close connection */ |
| 2699 | goto fail; |
| 2700 | return 0; |
| 2701 | } else if (len == 0) { |
| 2702 | /* end of connection : close it */ |
| 2703 | goto fail; |
| 2704 | } else if (c->buffer_ptr - c->buffer >= 2 && |
| 2705 | !memcmp(c->buffer_ptr - 1, "\r\n", 2)) { |
| 2706 | c->chunk_size = strtol(c->buffer, 0, 16); |
| 2707 | if (c->chunk_size == 0) // end of stream |
| 2708 | goto fail; |
| 2709 | c->buffer_ptr = c->buffer; |
| 2710 | break; |
| 2711 | } else if (++loop_run > 10) { |
| 2712 | /* no chunk header, abort */ |
| 2713 | goto fail; |
| 2714 | } else { |
| 2715 | c->buffer_ptr++; |
| 2716 | } |
| 2717 | } |
| 2718 | |
| 2719 | if (c->buffer_end > c->buffer_ptr) { |
| 2720 | len = recv(c->fd, c->buffer_ptr, |
| 2721 | FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0); |
| 2722 | if (len < 0) { |
| 2723 | if (ff_neterrno() != AVERROR(EAGAIN) && |
| 2724 | ff_neterrno() != AVERROR(EINTR)) |
| 2725 | /* error : close connection */ |
| 2726 | goto fail; |
| 2727 | } else if (len == 0) |
| 2728 | /* end of connection : close it */ |
| 2729 | goto fail; |
| 2730 | else { |
| 2731 | c->chunk_size -= len; |
| 2732 | c->buffer_ptr += len; |
| 2733 | c->data_count += len; |
| 2734 | update_datarate(&c->datarate, c->data_count); |
| 2735 | } |
| 2736 | } |
| 2737 | |
| 2738 | if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) { |
| 2739 | if (c->buffer[0] != 'f' || |
| 2740 | c->buffer[1] != 'm') { |
| 2741 | http_log("Feed stream has become desynchronized -- disconnecting\n"); |
| 2742 | goto fail; |
| 2743 | } |
| 2744 | } |
| 2745 | |
| 2746 | if (c->buffer_ptr >= c->buffer_end) { |
| 2747 | FFStream *feed = c->stream; |
| 2748 | /* a packet has been received : write it in the store, except |
| 2749 | if header */ |
| 2750 | if (c->data_count > FFM_PACKET_SIZE) { |
| 2751 | /* XXX: use llseek or url_seek |
| 2752 | * XXX: Should probably fail? */ |
| 2753 | if (lseek(c->feed_fd, feed->feed_write_index, SEEK_SET) == -1) |
| 2754 | http_log("Seek to %"PRId64" failed\n", feed->feed_write_index); |
| 2755 | |
| 2756 | if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) { |
| 2757 | http_log("Error writing to feed file: %s\n", strerror(errno)); |
| 2758 | goto fail; |
| 2759 | } |
| 2760 | |
| 2761 | feed->feed_write_index += FFM_PACKET_SIZE; |
| 2762 | /* update file size */ |
| 2763 | if (feed->feed_write_index > c->stream->feed_size) |
| 2764 | feed->feed_size = feed->feed_write_index; |
| 2765 | |
| 2766 | /* handle wrap around if max file size reached */ |
| 2767 | if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size) |
| 2768 | feed->feed_write_index = FFM_PACKET_SIZE; |
| 2769 | |
| 2770 | /* write index */ |
| 2771 | if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) { |
| 2772 | http_log("Error writing index to feed file: %s\n", strerror(errno)); |
| 2773 | goto fail; |
| 2774 | } |
| 2775 | |
| 2776 | /* wake up any waiting connections */ |
| 2777 | for(c1 = first_http_ctx; c1; c1 = c1->next) { |
| 2778 | if (c1->state == HTTPSTATE_WAIT_FEED && |
| 2779 | c1->stream->feed == c->stream->feed) |
| 2780 | c1->state = HTTPSTATE_SEND_DATA; |
| 2781 | } |
| 2782 | } else { |
| 2783 | /* We have a header in our hands that contains useful data */ |
| 2784 | AVFormatContext *s = avformat_alloc_context(); |
| 2785 | AVIOContext *pb; |
| 2786 | AVInputFormat *fmt_in; |
| 2787 | int i; |
| 2788 | |
| 2789 | if (!s) |
| 2790 | goto fail; |
| 2791 | |
| 2792 | /* use feed output format name to find corresponding input format */ |
| 2793 | fmt_in = av_find_input_format(feed->fmt->name); |
| 2794 | if (!fmt_in) |
| 2795 | goto fail; |
| 2796 | |
| 2797 | pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer, |
| 2798 | 0, NULL, NULL, NULL, NULL); |
| 2799 | pb->seekable = 0; |
| 2800 | |
| 2801 | s->pb = pb; |
| 2802 | if (avformat_open_input(&s, c->stream->feed_filename, fmt_in, NULL) < 0) { |
| 2803 | av_free(pb); |
| 2804 | goto fail; |
| 2805 | } |
| 2806 | |
| 2807 | /* Now we have the actual streams */ |
| 2808 | if (s->nb_streams != feed->nb_streams) { |
| 2809 | avformat_close_input(&s); |
| 2810 | av_free(pb); |
| 2811 | http_log("Feed '%s' stream number does not match registered feed\n", |
| 2812 | c->stream->feed_filename); |
| 2813 | goto fail; |
| 2814 | } |
| 2815 | |
| 2816 | for (i = 0; i < s->nb_streams; i++) { |
| 2817 | AVStream *fst = feed->streams[i]; |
| 2818 | AVStream *st = s->streams[i]; |
| 2819 | avcodec_copy_context(fst->codec, st->codec); |
| 2820 | } |
| 2821 | |
| 2822 | avformat_close_input(&s); |
| 2823 | av_free(pb); |
| 2824 | } |
| 2825 | c->buffer_ptr = c->buffer; |
| 2826 | } |
| 2827 | |
| 2828 | return 0; |
| 2829 | fail: |
| 2830 | c->stream->feed_opened = 0; |
| 2831 | close(c->feed_fd); |
| 2832 | /* wake up any waiting connections to stop waiting for feed */ |
| 2833 | for(c1 = first_http_ctx; c1; c1 = c1->next) { |
| 2834 | if (c1->state == HTTPSTATE_WAIT_FEED && |
| 2835 | c1->stream->feed == c->stream->feed) |
| 2836 | c1->state = HTTPSTATE_SEND_DATA_TRAILER; |
| 2837 | } |
| 2838 | return -1; |
| 2839 | } |
| 2840 | |
| 2841 | /********************************************************************/ |
| 2842 | /* RTSP handling */ |
| 2843 | |
| 2844 | static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number) |
| 2845 | { |
| 2846 | const char *str; |
| 2847 | time_t ti; |
| 2848 | struct tm *tm; |
| 2849 | char buf2[32]; |
| 2850 | |
| 2851 | str = RTSP_STATUS_CODE2STRING(error_number); |
| 2852 | if (!str) |
| 2853 | str = "Unknown Error"; |
| 2854 | |
| 2855 | avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str); |
| 2856 | avio_printf(c->pb, "CSeq: %d\r\n", c->seq); |
| 2857 | |
| 2858 | /* output GMT time */ |
| 2859 | ti = time(NULL); |
| 2860 | tm = gmtime(&ti); |
| 2861 | strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm); |
| 2862 | avio_printf(c->pb, "Date: %s GMT\r\n", buf2); |
| 2863 | } |
| 2864 | |
| 2865 | static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number) |
| 2866 | { |
| 2867 | rtsp_reply_header(c, error_number); |
| 2868 | avio_printf(c->pb, "\r\n"); |
| 2869 | } |
| 2870 | |
| 2871 | static int rtsp_parse_request(HTTPContext *c) |
| 2872 | { |
| 2873 | const char *p, *p1, *p2; |
| 2874 | char cmd[32]; |
| 2875 | char url[1024]; |
| 2876 | char protocol[32]; |
| 2877 | char line[1024]; |
| 2878 | int len; |
| 2879 | RTSPMessageHeader header1 = { 0 }, *header = &header1; |
| 2880 | |
| 2881 | c->buffer_ptr[0] = '\0'; |
| 2882 | p = c->buffer; |
| 2883 | |
| 2884 | get_word(cmd, sizeof(cmd), &p); |
| 2885 | get_word(url, sizeof(url), &p); |
| 2886 | get_word(protocol, sizeof(protocol), &p); |
| 2887 | |
| 2888 | av_strlcpy(c->method, cmd, sizeof(c->method)); |
| 2889 | av_strlcpy(c->url, url, sizeof(c->url)); |
| 2890 | av_strlcpy(c->protocol, protocol, sizeof(c->protocol)); |
| 2891 | |
| 2892 | if (avio_open_dyn_buf(&c->pb) < 0) { |
| 2893 | /* XXX: cannot do more */ |
| 2894 | c->pb = NULL; /* safety */ |
| 2895 | return -1; |
| 2896 | } |
| 2897 | |
| 2898 | /* check version name */ |
| 2899 | if (strcmp(protocol, "RTSP/1.0") != 0) { |
| 2900 | rtsp_reply_error(c, RTSP_STATUS_VERSION); |
| 2901 | goto the_end; |
| 2902 | } |
| 2903 | |
| 2904 | /* parse each header line */ |
| 2905 | /* skip to next line */ |
| 2906 | while (*p != '\n' && *p != '\0') |
| 2907 | p++; |
| 2908 | if (*p == '\n') |
| 2909 | p++; |
| 2910 | while (*p != '\0') { |
| 2911 | p1 = memchr(p, '\n', (char *)c->buffer_ptr - p); |
| 2912 | if (!p1) |
| 2913 | break; |
| 2914 | p2 = p1; |
| 2915 | if (p2 > p && p2[-1] == '\r') |
| 2916 | p2--; |
| 2917 | /* skip empty line */ |
| 2918 | if (p2 == p) |
| 2919 | break; |
| 2920 | len = p2 - p; |
| 2921 | if (len > sizeof(line) - 1) |
| 2922 | len = sizeof(line) - 1; |
| 2923 | memcpy(line, p, len); |
| 2924 | line[len] = '\0'; |
| 2925 | ff_rtsp_parse_line(header, line, NULL, NULL); |
| 2926 | p = p1 + 1; |
| 2927 | } |
| 2928 | |
| 2929 | /* handle sequence number */ |
| 2930 | c->seq = header->seq; |
| 2931 | |
| 2932 | if (!strcmp(cmd, "DESCRIBE")) |
| 2933 | rtsp_cmd_describe(c, url); |
| 2934 | else if (!strcmp(cmd, "OPTIONS")) |
| 2935 | rtsp_cmd_options(c, url); |
| 2936 | else if (!strcmp(cmd, "SETUP")) |
| 2937 | rtsp_cmd_setup(c, url, header); |
| 2938 | else if (!strcmp(cmd, "PLAY")) |
| 2939 | rtsp_cmd_play(c, url, header); |
| 2940 | else if (!strcmp(cmd, "PAUSE")) |
| 2941 | rtsp_cmd_interrupt(c, url, header, 1); |
| 2942 | else if (!strcmp(cmd, "TEARDOWN")) |
| 2943 | rtsp_cmd_interrupt(c, url, header, 0); |
| 2944 | else |
| 2945 | rtsp_reply_error(c, RTSP_STATUS_METHOD); |
| 2946 | |
| 2947 | the_end: |
| 2948 | len = avio_close_dyn_buf(c->pb, &c->pb_buffer); |
| 2949 | c->pb = NULL; /* safety */ |
| 2950 | if (len < 0) { |
| 2951 | /* XXX: cannot do more */ |
| 2952 | return -1; |
| 2953 | } |
| 2954 | c->buffer_ptr = c->pb_buffer; |
| 2955 | c->buffer_end = c->pb_buffer + len; |
| 2956 | c->state = RTSPSTATE_SEND_REPLY; |
| 2957 | return 0; |
| 2958 | } |
| 2959 | |
| 2960 | static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer, |
| 2961 | struct in_addr my_ip) |
| 2962 | { |
| 2963 | AVFormatContext *avc; |
| 2964 | AVStream *avs = NULL; |
| 2965 | AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL); |
| 2966 | AVDictionaryEntry *entry = av_dict_get(stream->metadata, "title", NULL, 0); |
| 2967 | int i; |
| 2968 | |
| 2969 | *pbuffer = NULL; |
| 2970 | |
| 2971 | avc = avformat_alloc_context(); |
| 2972 | if (!avc || !rtp_format) { |
| 2973 | return -1; |
| 2974 | } |
| 2975 | avc->oformat = rtp_format; |
| 2976 | av_dict_set(&avc->metadata, "title", |
| 2977 | entry ? entry->value : "No Title", 0); |
| 2978 | avc->nb_streams = stream->nb_streams; |
| 2979 | if (stream->is_multicast) { |
| 2980 | snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d", |
| 2981 | inet_ntoa(stream->multicast_ip), |
| 2982 | stream->multicast_port, stream->multicast_ttl); |
| 2983 | } else { |
| 2984 | snprintf(avc->filename, 1024, "rtp://0.0.0.0"); |
| 2985 | } |
| 2986 | |
| 2987 | if (avc->nb_streams >= INT_MAX/sizeof(*avc->streams) || |
| 2988 | !(avc->streams = av_malloc(avc->nb_streams * sizeof(*avc->streams)))) |
| 2989 | goto sdp_done; |
| 2990 | if (avc->nb_streams >= INT_MAX/sizeof(*avs) || |
| 2991 | !(avs = av_malloc(avc->nb_streams * sizeof(*avs)))) |
| 2992 | goto sdp_done; |
| 2993 | |
| 2994 | for(i = 0; i < stream->nb_streams; i++) { |
| 2995 | avc->streams[i] = &avs[i]; |
| 2996 | avc->streams[i]->codec = stream->streams[i]->codec; |
| 2997 | } |
| 2998 | *pbuffer = av_mallocz(2048); |
| 2999 | av_sdp_create(&avc, 1, *pbuffer, 2048); |
| 3000 | |
| 3001 | sdp_done: |
| 3002 | av_free(avc->streams); |
| 3003 | av_dict_free(&avc->metadata); |
| 3004 | av_free(avc); |
| 3005 | av_free(avs); |
| 3006 | |
| 3007 | return *pbuffer ? strlen(*pbuffer) : AVERROR(ENOMEM); |
| 3008 | } |
| 3009 | |
| 3010 | static void rtsp_cmd_options(HTTPContext *c, const char *url) |
| 3011 | { |
| 3012 | // rtsp_reply_header(c, RTSP_STATUS_OK); |
| 3013 | avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK"); |
| 3014 | avio_printf(c->pb, "CSeq: %d\r\n", c->seq); |
| 3015 | avio_printf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE"); |
| 3016 | avio_printf(c->pb, "\r\n"); |
| 3017 | } |
| 3018 | |
| 3019 | static void rtsp_cmd_describe(HTTPContext *c, const char *url) |
| 3020 | { |
| 3021 | FFStream *stream; |
| 3022 | char path1[1024]; |
| 3023 | const char *path; |
| 3024 | uint8_t *content; |
| 3025 | int content_length; |
| 3026 | socklen_t len; |
| 3027 | struct sockaddr_in my_addr; |
| 3028 | |
| 3029 | /* find which URL is asked */ |
| 3030 | av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url); |
| 3031 | path = path1; |
| 3032 | if (*path == '/') |
| 3033 | path++; |
| 3034 | |
| 3035 | for(stream = first_stream; stream; stream = stream->next) { |
| 3036 | if (!stream->is_feed && |
| 3037 | stream->fmt && !strcmp(stream->fmt->name, "rtp") && |
| 3038 | !strcmp(path, stream->filename)) { |
| 3039 | goto found; |
| 3040 | } |
| 3041 | } |
| 3042 | /* no stream found */ |
| 3043 | rtsp_reply_error(c, RTSP_STATUS_NOT_FOUND); |
| 3044 | return; |
| 3045 | |
| 3046 | found: |
| 3047 | /* prepare the media description in SDP format */ |
| 3048 | |
| 3049 | /* get the host IP */ |
| 3050 | len = sizeof(my_addr); |
| 3051 | getsockname(c->fd, (struct sockaddr *)&my_addr, &len); |
| 3052 | content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr); |
| 3053 | if (content_length < 0) { |
| 3054 | rtsp_reply_error(c, RTSP_STATUS_INTERNAL); |
| 3055 | return; |
| 3056 | } |
| 3057 | rtsp_reply_header(c, RTSP_STATUS_OK); |
| 3058 | avio_printf(c->pb, "Content-Base: %s/\r\n", url); |
| 3059 | avio_printf(c->pb, "Content-Type: application/sdp\r\n"); |
| 3060 | avio_printf(c->pb, "Content-Length: %d\r\n", content_length); |
| 3061 | avio_printf(c->pb, "\r\n"); |
| 3062 | avio_write(c->pb, content, content_length); |
| 3063 | av_free(content); |
| 3064 | } |
| 3065 | |
| 3066 | static HTTPContext *find_rtp_session(const char *session_id) |
| 3067 | { |
| 3068 | HTTPContext *c; |
| 3069 | |
| 3070 | if (session_id[0] == '\0') |
| 3071 | return NULL; |
| 3072 | |
| 3073 | for(c = first_http_ctx; c; c = c->next) { |
| 3074 | if (!strcmp(c->session_id, session_id)) |
| 3075 | return c; |
| 3076 | } |
| 3077 | return NULL; |
| 3078 | } |
| 3079 | |
| 3080 | static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport) |
| 3081 | { |
| 3082 | RTSPTransportField *th; |
| 3083 | int i; |
| 3084 | |
| 3085 | for(i=0;i<h->nb_transports;i++) { |
| 3086 | th = &h->transports[i]; |
| 3087 | if (th->lower_transport == lower_transport) |
| 3088 | return th; |
| 3089 | } |
| 3090 | return NULL; |
| 3091 | } |
| 3092 | |
| 3093 | static void rtsp_cmd_setup(HTTPContext *c, const char *url, |
| 3094 | RTSPMessageHeader *h) |
| 3095 | { |
| 3096 | FFStream *stream; |
| 3097 | int stream_index, rtp_port, rtcp_port; |
| 3098 | char buf[1024]; |
| 3099 | char path1[1024]; |
| 3100 | const char *path; |
| 3101 | HTTPContext *rtp_c; |
| 3102 | RTSPTransportField *th; |
| 3103 | struct sockaddr_in dest_addr; |
| 3104 | RTSPActionServerSetup setup; |
| 3105 | |
| 3106 | /* find which URL is asked */ |
| 3107 | av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url); |
| 3108 | path = path1; |
| 3109 | if (*path == '/') |
| 3110 | path++; |
| 3111 | |
| 3112 | /* now check each stream */ |
| 3113 | for(stream = first_stream; stream; stream = stream->next) { |
| 3114 | if (!stream->is_feed && |
| 3115 | stream->fmt && !strcmp(stream->fmt->name, "rtp")) { |
| 3116 | /* accept aggregate filenames only if single stream */ |
| 3117 | if (!strcmp(path, stream->filename)) { |
| 3118 | if (stream->nb_streams != 1) { |
| 3119 | rtsp_reply_error(c, RTSP_STATUS_AGGREGATE); |
| 3120 | return; |
| 3121 | } |
| 3122 | stream_index = 0; |
| 3123 | goto found; |
| 3124 | } |
| 3125 | |
| 3126 | for(stream_index = 0; stream_index < stream->nb_streams; |
| 3127 | stream_index++) { |
| 3128 | snprintf(buf, sizeof(buf), "%s/streamid=%d", |
| 3129 | stream->filename, stream_index); |
| 3130 | if (!strcmp(path, buf)) |
| 3131 | goto found; |
| 3132 | } |
| 3133 | } |
| 3134 | } |
| 3135 | /* no stream found */ |
| 3136 | rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */ |
| 3137 | return; |
| 3138 | found: |
| 3139 | |
| 3140 | /* generate session id if needed */ |
| 3141 | if (h->session_id[0] == '\0') { |
| 3142 | unsigned random0 = av_lfg_get(&random_state); |
| 3143 | unsigned random1 = av_lfg_get(&random_state); |
| 3144 | snprintf(h->session_id, sizeof(h->session_id), "%08x%08x", |
| 3145 | random0, random1); |
| 3146 | } |
| 3147 | |
| 3148 | /* find RTP session, and create it if none found */ |
| 3149 | rtp_c = find_rtp_session(h->session_id); |
| 3150 | if (!rtp_c) { |
| 3151 | /* always prefer UDP */ |
| 3152 | th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP); |
| 3153 | if (!th) { |
| 3154 | th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP); |
| 3155 | if (!th) { |
| 3156 | rtsp_reply_error(c, RTSP_STATUS_TRANSPORT); |
| 3157 | return; |
| 3158 | } |
| 3159 | } |
| 3160 | |
| 3161 | rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id, |
| 3162 | th->lower_transport); |
| 3163 | if (!rtp_c) { |
| 3164 | rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH); |
| 3165 | return; |
| 3166 | } |
| 3167 | |
| 3168 | /* open input stream */ |
| 3169 | if (open_input_stream(rtp_c, "") < 0) { |
| 3170 | rtsp_reply_error(c, RTSP_STATUS_INTERNAL); |
| 3171 | return; |
| 3172 | } |
| 3173 | } |
| 3174 | |
| 3175 | /* test if stream is OK (test needed because several SETUP needs |
| 3176 | to be done for a given file) */ |
| 3177 | if (rtp_c->stream != stream) { |
| 3178 | rtsp_reply_error(c, RTSP_STATUS_SERVICE); |
| 3179 | return; |
| 3180 | } |
| 3181 | |
| 3182 | /* test if stream is already set up */ |
| 3183 | if (rtp_c->rtp_ctx[stream_index]) { |
| 3184 | rtsp_reply_error(c, RTSP_STATUS_STATE); |
| 3185 | return; |
| 3186 | } |
| 3187 | |
| 3188 | /* check transport */ |
| 3189 | th = find_transport(h, rtp_c->rtp_protocol); |
| 3190 | if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP && |
| 3191 | th->client_port_min <= 0)) { |
| 3192 | rtsp_reply_error(c, RTSP_STATUS_TRANSPORT); |
| 3193 | return; |
| 3194 | } |
| 3195 | |
| 3196 | /* setup default options */ |
| 3197 | setup.transport_option[0] = '\0'; |
| 3198 | dest_addr = rtp_c->from_addr; |
| 3199 | dest_addr.sin_port = htons(th->client_port_min); |
| 3200 | |
| 3201 | /* setup stream */ |
| 3202 | if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) { |
| 3203 | rtsp_reply_error(c, RTSP_STATUS_TRANSPORT); |
| 3204 | return; |
| 3205 | } |
| 3206 | |
| 3207 | /* now everything is OK, so we can send the connection parameters */ |
| 3208 | rtsp_reply_header(c, RTSP_STATUS_OK); |
| 3209 | /* session ID */ |
| 3210 | avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id); |
| 3211 | |
| 3212 | switch(rtp_c->rtp_protocol) { |
| 3213 | case RTSP_LOWER_TRANSPORT_UDP: |
| 3214 | rtp_port = ff_rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]); |
| 3215 | rtcp_port = ff_rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]); |
| 3216 | avio_printf(c->pb, "Transport: RTP/AVP/UDP;unicast;" |
| 3217 | "client_port=%d-%d;server_port=%d-%d", |
| 3218 | th->client_port_min, th->client_port_max, |
| 3219 | rtp_port, rtcp_port); |
| 3220 | break; |
| 3221 | case RTSP_LOWER_TRANSPORT_TCP: |
| 3222 | avio_printf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d", |
| 3223 | stream_index * 2, stream_index * 2 + 1); |
| 3224 | break; |
| 3225 | default: |
| 3226 | break; |
| 3227 | } |
| 3228 | if (setup.transport_option[0] != '\0') |
| 3229 | avio_printf(c->pb, ";%s", setup.transport_option); |
| 3230 | avio_printf(c->pb, "\r\n"); |
| 3231 | |
| 3232 | |
| 3233 | avio_printf(c->pb, "\r\n"); |
| 3234 | } |
| 3235 | |
| 3236 | |
| 3237 | /* find an RTP connection by using the session ID. Check consistency |
| 3238 | with filename */ |
| 3239 | static HTTPContext *find_rtp_session_with_url(const char *url, |
| 3240 | const char *session_id) |
| 3241 | { |
| 3242 | HTTPContext *rtp_c; |
| 3243 | char path1[1024]; |
| 3244 | const char *path; |
| 3245 | char buf[1024]; |
| 3246 | int s, len; |
| 3247 | |
| 3248 | rtp_c = find_rtp_session(session_id); |
| 3249 | if (!rtp_c) |
| 3250 | return NULL; |
| 3251 | |
| 3252 | /* find which URL is asked */ |
| 3253 | av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url); |
| 3254 | path = path1; |
| 3255 | if (*path == '/') |
| 3256 | path++; |
| 3257 | if(!strcmp(path, rtp_c->stream->filename)) return rtp_c; |
| 3258 | for(s=0; s<rtp_c->stream->nb_streams; ++s) { |
| 3259 | snprintf(buf, sizeof(buf), "%s/streamid=%d", |
| 3260 | rtp_c->stream->filename, s); |
| 3261 | if(!strncmp(path, buf, sizeof(buf))) { |
| 3262 | // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1? |
| 3263 | return rtp_c; |
| 3264 | } |
| 3265 | } |
| 3266 | len = strlen(path); |
| 3267 | if (len > 0 && path[len - 1] == '/' && |
| 3268 | !strncmp(path, rtp_c->stream->filename, len - 1)) |
| 3269 | return rtp_c; |
| 3270 | return NULL; |
| 3271 | } |
| 3272 | |
| 3273 | static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h) |
| 3274 | { |
| 3275 | HTTPContext *rtp_c; |
| 3276 | |
| 3277 | rtp_c = find_rtp_session_with_url(url, h->session_id); |
| 3278 | if (!rtp_c) { |
| 3279 | rtsp_reply_error(c, RTSP_STATUS_SESSION); |
| 3280 | return; |
| 3281 | } |
| 3282 | |
| 3283 | if (rtp_c->state != HTTPSTATE_SEND_DATA && |
| 3284 | rtp_c->state != HTTPSTATE_WAIT_FEED && |
| 3285 | rtp_c->state != HTTPSTATE_READY) { |
| 3286 | rtsp_reply_error(c, RTSP_STATUS_STATE); |
| 3287 | return; |
| 3288 | } |
| 3289 | |
| 3290 | rtp_c->state = HTTPSTATE_SEND_DATA; |
| 3291 | |
| 3292 | /* now everything is OK, so we can send the connection parameters */ |
| 3293 | rtsp_reply_header(c, RTSP_STATUS_OK); |
| 3294 | /* session ID */ |
| 3295 | avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id); |
| 3296 | avio_printf(c->pb, "\r\n"); |
| 3297 | } |
| 3298 | |
| 3299 | static void rtsp_cmd_interrupt(HTTPContext *c, const char *url, RTSPMessageHeader *h, int pause_only) |
| 3300 | { |
| 3301 | HTTPContext *rtp_c; |
| 3302 | |
| 3303 | rtp_c = find_rtp_session_with_url(url, h->session_id); |
| 3304 | if (!rtp_c) { |
| 3305 | rtsp_reply_error(c, RTSP_STATUS_SESSION); |
| 3306 | return; |
| 3307 | } |
| 3308 | |
| 3309 | if (pause_only) { |
| 3310 | if (rtp_c->state != HTTPSTATE_SEND_DATA && |
| 3311 | rtp_c->state != HTTPSTATE_WAIT_FEED) { |
| 3312 | rtsp_reply_error(c, RTSP_STATUS_STATE); |
| 3313 | return; |
| 3314 | } |
| 3315 | rtp_c->state = HTTPSTATE_READY; |
| 3316 | rtp_c->first_pts = AV_NOPTS_VALUE; |
| 3317 | } |
| 3318 | |
| 3319 | /* now everything is OK, so we can send the connection parameters */ |
| 3320 | rtsp_reply_header(c, RTSP_STATUS_OK); |
| 3321 | /* session ID */ |
| 3322 | avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id); |
| 3323 | avio_printf(c->pb, "\r\n"); |
| 3324 | |
| 3325 | if (!pause_only) |
| 3326 | close_connection(rtp_c); |
| 3327 | } |
| 3328 | |
| 3329 | /********************************************************************/ |
| 3330 | /* RTP handling */ |
| 3331 | |
| 3332 | static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr, |
| 3333 | FFStream *stream, const char *session_id, |
| 3334 | enum RTSPLowerTransport rtp_protocol) |
| 3335 | { |
| 3336 | HTTPContext *c = NULL; |
| 3337 | const char *proto_str; |
| 3338 | |
| 3339 | /* XXX: should output a warning page when coming |
| 3340 | close to the connection limit */ |
| 3341 | if (nb_connections >= nb_max_connections) |
| 3342 | goto fail; |
| 3343 | |
| 3344 | /* add a new connection */ |
| 3345 | c = av_mallocz(sizeof(HTTPContext)); |
| 3346 | if (!c) |
| 3347 | goto fail; |
| 3348 | |
| 3349 | c->fd = -1; |
| 3350 | c->poll_entry = NULL; |
| 3351 | c->from_addr = *from_addr; |
| 3352 | c->buffer_size = IOBUFFER_INIT_SIZE; |
| 3353 | c->buffer = av_malloc(c->buffer_size); |
| 3354 | if (!c->buffer) |
| 3355 | goto fail; |
| 3356 | nb_connections++; |
| 3357 | c->stream = stream; |
| 3358 | av_strlcpy(c->session_id, session_id, sizeof(c->session_id)); |
| 3359 | c->state = HTTPSTATE_READY; |
| 3360 | c->is_packetized = 1; |
| 3361 | c->rtp_protocol = rtp_protocol; |
| 3362 | |
| 3363 | /* protocol is shown in statistics */ |
| 3364 | switch(c->rtp_protocol) { |
| 3365 | case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: |
| 3366 | proto_str = "MCAST"; |
| 3367 | break; |
| 3368 | case RTSP_LOWER_TRANSPORT_UDP: |
| 3369 | proto_str = "UDP"; |
| 3370 | break; |
| 3371 | case RTSP_LOWER_TRANSPORT_TCP: |
| 3372 | proto_str = "TCP"; |
| 3373 | break; |
| 3374 | default: |
| 3375 | proto_str = "???"; |
| 3376 | break; |
| 3377 | } |
| 3378 | av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol)); |
| 3379 | av_strlcat(c->protocol, proto_str, sizeof(c->protocol)); |
| 3380 | |
| 3381 | current_bandwidth += stream->bandwidth; |
| 3382 | |
| 3383 | c->next = first_http_ctx; |
| 3384 | first_http_ctx = c; |
| 3385 | return c; |
| 3386 | |
| 3387 | fail: |
| 3388 | if (c) { |
| 3389 | av_free(c->buffer); |
| 3390 | av_free(c); |
| 3391 | } |
| 3392 | return NULL; |
| 3393 | } |
| 3394 | |
| 3395 | /* add a new RTP stream in an RTP connection (used in RTSP SETUP |
| 3396 | command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is |
| 3397 | used. */ |
| 3398 | static int rtp_new_av_stream(HTTPContext *c, |
| 3399 | int stream_index, struct sockaddr_in *dest_addr, |
| 3400 | HTTPContext *rtsp_c) |
| 3401 | { |
| 3402 | AVFormatContext *ctx; |
| 3403 | AVStream *st; |
| 3404 | char *ipaddr; |
| 3405 | URLContext *h = NULL; |
| 3406 | uint8_t *dummy_buf; |
| 3407 | int max_packet_size; |
| 3408 | |
| 3409 | /* now we can open the relevant output stream */ |
| 3410 | ctx = avformat_alloc_context(); |
| 3411 | if (!ctx) |
| 3412 | return -1; |
| 3413 | ctx->oformat = av_guess_format("rtp", NULL, NULL); |
| 3414 | |
| 3415 | st = av_mallocz(sizeof(AVStream)); |
| 3416 | if (!st) |
| 3417 | goto fail; |
| 3418 | ctx->nb_streams = 1; |
| 3419 | ctx->streams = av_mallocz_array(ctx->nb_streams, sizeof(AVStream *)); |
| 3420 | if (!ctx->streams) |
| 3421 | goto fail; |
| 3422 | ctx->streams[0] = st; |
| 3423 | |
| 3424 | if (!c->stream->feed || |
| 3425 | c->stream->feed == c->stream) |
| 3426 | memcpy(st, c->stream->streams[stream_index], sizeof(AVStream)); |
| 3427 | else |
| 3428 | memcpy(st, |
| 3429 | c->stream->feed->streams[c->stream->feed_streams[stream_index]], |
| 3430 | sizeof(AVStream)); |
| 3431 | st->priv_data = NULL; |
| 3432 | |
| 3433 | /* build destination RTP address */ |
| 3434 | ipaddr = inet_ntoa(dest_addr->sin_addr); |
| 3435 | |
| 3436 | switch(c->rtp_protocol) { |
| 3437 | case RTSP_LOWER_TRANSPORT_UDP: |
| 3438 | case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: |
| 3439 | /* RTP/UDP case */ |
| 3440 | |
| 3441 | /* XXX: also pass as parameter to function ? */ |
| 3442 | if (c->stream->is_multicast) { |
| 3443 | int ttl; |
| 3444 | ttl = c->stream->multicast_ttl; |
| 3445 | if (!ttl) |
| 3446 | ttl = 16; |
| 3447 | snprintf(ctx->filename, sizeof(ctx->filename), |
| 3448 | "rtp://%s:%d?multicast=1&ttl=%d", |
| 3449 | ipaddr, ntohs(dest_addr->sin_port), ttl); |
| 3450 | } else { |
| 3451 | snprintf(ctx->filename, sizeof(ctx->filename), |
| 3452 | "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port)); |
| 3453 | } |
| 3454 | |
| 3455 | if (ffurl_open(&h, ctx->filename, AVIO_FLAG_WRITE, NULL, NULL) < 0) |
| 3456 | goto fail; |
| 3457 | c->rtp_handles[stream_index] = h; |
| 3458 | max_packet_size = h->max_packet_size; |
| 3459 | break; |
| 3460 | case RTSP_LOWER_TRANSPORT_TCP: |
| 3461 | /* RTP/TCP case */ |
| 3462 | c->rtsp_c = rtsp_c; |
| 3463 | max_packet_size = RTSP_TCP_MAX_PACKET_SIZE; |
| 3464 | break; |
| 3465 | default: |
| 3466 | goto fail; |
| 3467 | } |
| 3468 | |
| 3469 | http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n", |
| 3470 | ipaddr, ntohs(dest_addr->sin_port), |
| 3471 | c->stream->filename, stream_index, c->protocol); |
| 3472 | |
| 3473 | /* normally, no packets should be output here, but the packet size may |
| 3474 | * be checked */ |
| 3475 | if (ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) { |
| 3476 | /* XXX: close stream */ |
| 3477 | goto fail; |
| 3478 | } |
| 3479 | if (avformat_write_header(ctx, NULL) < 0) { |
| 3480 | fail: |
| 3481 | if (h) |
| 3482 | ffurl_close(h); |
| 3483 | av_free(st); |
| 3484 | av_free(ctx); |
| 3485 | return -1; |
| 3486 | } |
| 3487 | avio_close_dyn_buf(ctx->pb, &dummy_buf); |
| 3488 | av_free(dummy_buf); |
| 3489 | |
| 3490 | c->rtp_ctx[stream_index] = ctx; |
| 3491 | return 0; |
| 3492 | } |
| 3493 | |
| 3494 | /********************************************************************/ |
| 3495 | /* ffserver initialization */ |
| 3496 | |
| 3497 | static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec, int copy) |
| 3498 | { |
| 3499 | AVStream *fst; |
| 3500 | |
| 3501 | if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams)) |
| 3502 | return NULL; |
| 3503 | |
| 3504 | fst = av_mallocz(sizeof(AVStream)); |
| 3505 | if (!fst) |
| 3506 | return NULL; |
| 3507 | if (copy) { |
| 3508 | fst->codec = avcodec_alloc_context3(NULL); |
| 3509 | memcpy(fst->codec, codec, sizeof(AVCodecContext)); |
| 3510 | if (codec->extradata_size) { |
| 3511 | fst->codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); |
| 3512 | memcpy(fst->codec->extradata, codec->extradata, |
| 3513 | codec->extradata_size); |
| 3514 | } |
| 3515 | } else { |
| 3516 | /* live streams must use the actual feed's codec since it may be |
| 3517 | * updated later to carry extradata needed by them. |
| 3518 | */ |
| 3519 | fst->codec = codec; |
| 3520 | } |
| 3521 | fst->priv_data = av_mallocz(sizeof(FeedData)); |
| 3522 | fst->index = stream->nb_streams; |
| 3523 | avpriv_set_pts_info(fst, 33, 1, 90000); |
| 3524 | fst->sample_aspect_ratio = codec->sample_aspect_ratio; |
| 3525 | stream->streams[stream->nb_streams++] = fst; |
| 3526 | return fst; |
| 3527 | } |
| 3528 | |
| 3529 | /* return the stream number in the feed */ |
| 3530 | static int add_av_stream(FFStream *feed, AVStream *st) |
| 3531 | { |
| 3532 | AVStream *fst; |
| 3533 | AVCodecContext *av, *av1; |
| 3534 | int i; |
| 3535 | |
| 3536 | av = st->codec; |
| 3537 | for(i=0;i<feed->nb_streams;i++) { |
| 3538 | st = feed->streams[i]; |
| 3539 | av1 = st->codec; |
| 3540 | if (av1->codec_id == av->codec_id && |
| 3541 | av1->codec_type == av->codec_type && |
| 3542 | av1->bit_rate == av->bit_rate) { |
| 3543 | |
| 3544 | switch(av->codec_type) { |
| 3545 | case AVMEDIA_TYPE_AUDIO: |
| 3546 | if (av1->channels == av->channels && |
| 3547 | av1->sample_rate == av->sample_rate) |
| 3548 | return i; |
| 3549 | break; |
| 3550 | case AVMEDIA_TYPE_VIDEO: |
| 3551 | if (av1->width == av->width && |
| 3552 | av1->height == av->height && |
| 3553 | av1->time_base.den == av->time_base.den && |
| 3554 | av1->time_base.num == av->time_base.num && |
| 3555 | av1->gop_size == av->gop_size) |
| 3556 | return i; |
| 3557 | break; |
| 3558 | default: |
| 3559 | abort(); |
| 3560 | } |
| 3561 | } |
| 3562 | } |
| 3563 | |
| 3564 | fst = add_av_stream1(feed, av, 0); |
| 3565 | if (!fst) |
| 3566 | return -1; |
| 3567 | return feed->nb_streams - 1; |
| 3568 | } |
| 3569 | |
| 3570 | static void remove_stream(FFStream *stream) |
| 3571 | { |
| 3572 | FFStream **ps; |
| 3573 | ps = &first_stream; |
| 3574 | while (*ps) { |
| 3575 | if (*ps == stream) |
| 3576 | *ps = (*ps)->next; |
| 3577 | else |
| 3578 | ps = &(*ps)->next; |
| 3579 | } |
| 3580 | } |
| 3581 | |
| 3582 | /* specific MPEG4 handling : we extract the raw parameters */ |
| 3583 | static void extract_mpeg4_header(AVFormatContext *infile) |
| 3584 | { |
| 3585 | int mpeg4_count, i, size; |
| 3586 | AVPacket pkt; |
| 3587 | AVStream *st; |
| 3588 | const uint8_t *p; |
| 3589 | |
| 3590 | infile->flags |= AVFMT_FLAG_NOFILLIN | AVFMT_FLAG_NOPARSE; |
| 3591 | |
| 3592 | mpeg4_count = 0; |
| 3593 | for(i=0;i<infile->nb_streams;i++) { |
| 3594 | st = infile->streams[i]; |
| 3595 | if (st->codec->codec_id == AV_CODEC_ID_MPEG4 && |
| 3596 | st->codec->extradata_size == 0) { |
| 3597 | mpeg4_count++; |
| 3598 | } |
| 3599 | } |
| 3600 | if (!mpeg4_count) |
| 3601 | return; |
| 3602 | |
| 3603 | printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename); |
| 3604 | while (mpeg4_count > 0) { |
| 3605 | if (av_read_frame(infile, &pkt) < 0) |
| 3606 | break; |
| 3607 | st = infile->streams[pkt.stream_index]; |
| 3608 | if (st->codec->codec_id == AV_CODEC_ID_MPEG4 && |
| 3609 | st->codec->extradata_size == 0) { |
| 3610 | av_freep(&st->codec->extradata); |
| 3611 | /* fill extradata with the header */ |
| 3612 | /* XXX: we make hard suppositions here ! */ |
| 3613 | p = pkt.data; |
| 3614 | while (p < pkt.data + pkt.size - 4) { |
| 3615 | /* stop when vop header is found */ |
| 3616 | if (p[0] == 0x00 && p[1] == 0x00 && |
| 3617 | p[2] == 0x01 && p[3] == 0xb6) { |
| 3618 | size = p - pkt.data; |
| 3619 | // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size); |
| 3620 | st->codec->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE); |
| 3621 | st->codec->extradata_size = size; |
| 3622 | memcpy(st->codec->extradata, pkt.data, size); |
| 3623 | break; |
| 3624 | } |
| 3625 | p++; |
| 3626 | } |
| 3627 | mpeg4_count--; |
| 3628 | } |
| 3629 | av_free_packet(&pkt); |
| 3630 | } |
| 3631 | } |
| 3632 | |
| 3633 | /* compute the needed AVStream for each file */ |
| 3634 | static void build_file_streams(void) |
| 3635 | { |
| 3636 | FFStream *stream, *stream_next; |
| 3637 | int i, ret; |
| 3638 | |
| 3639 | /* gather all streams */ |
| 3640 | for(stream = first_stream; stream; stream = stream_next) { |
| 3641 | AVFormatContext *infile = NULL; |
| 3642 | stream_next = stream->next; |
| 3643 | if (stream->stream_type == STREAM_TYPE_LIVE && |
| 3644 | !stream->feed) { |
| 3645 | /* the stream comes from a file */ |
| 3646 | /* try to open the file */ |
| 3647 | /* open stream */ |
| 3648 | if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) { |
| 3649 | /* specific case : if transport stream output to RTP, |
| 3650 | we use a raw transport stream reader */ |
| 3651 | av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0); |
| 3652 | } |
| 3653 | |
| 3654 | if (!stream->feed_filename[0]) { |
| 3655 | http_log("Unspecified feed file for stream '%s'\n", stream->filename); |
| 3656 | goto fail; |
| 3657 | } |
| 3658 | |
| 3659 | http_log("Opening feed file '%s' for stream '%s'\n", stream->feed_filename, stream->filename); |
| 3660 | if ((ret = avformat_open_input(&infile, stream->feed_filename, stream->ifmt, &stream->in_opts)) < 0) { |
| 3661 | http_log("Could not open '%s': %s\n", stream->feed_filename, av_err2str(ret)); |
| 3662 | /* remove stream (no need to spend more time on it) */ |
| 3663 | fail: |
| 3664 | remove_stream(stream); |
| 3665 | } else { |
| 3666 | /* find all the AVStreams inside and reference them in |
| 3667 | 'stream' */ |
| 3668 | if (avformat_find_stream_info(infile, NULL) < 0) { |
| 3669 | http_log("Could not find codec parameters from '%s'\n", |
| 3670 | stream->feed_filename); |
| 3671 | avformat_close_input(&infile); |
| 3672 | goto fail; |
| 3673 | } |
| 3674 | extract_mpeg4_header(infile); |
| 3675 | |
| 3676 | for(i=0;i<infile->nb_streams;i++) |
| 3677 | add_av_stream1(stream, infile->streams[i]->codec, 1); |
| 3678 | |
| 3679 | avformat_close_input(&infile); |
| 3680 | } |
| 3681 | } |
| 3682 | } |
| 3683 | } |
| 3684 | |
| 3685 | /* compute the needed AVStream for each feed */ |
| 3686 | static void build_feed_streams(void) |
| 3687 | { |
| 3688 | FFStream *stream, *feed; |
| 3689 | int i; |
| 3690 | |
| 3691 | /* gather all streams */ |
| 3692 | for(stream = first_stream; stream; stream = stream->next) { |
| 3693 | feed = stream->feed; |
| 3694 | if (feed) { |
| 3695 | if (stream->is_feed) { |
| 3696 | for(i=0;i<stream->nb_streams;i++) |
| 3697 | stream->feed_streams[i] = i; |
| 3698 | } else { |
| 3699 | /* we handle a stream coming from a feed */ |
| 3700 | for(i=0;i<stream->nb_streams;i++) |
| 3701 | stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]); |
| 3702 | } |
| 3703 | } |
| 3704 | } |
| 3705 | |
| 3706 | /* create feed files if needed */ |
| 3707 | for(feed = first_feed; feed; feed = feed->next_feed) { |
| 3708 | int fd; |
| 3709 | |
| 3710 | if (avio_check(feed->feed_filename, AVIO_FLAG_READ) > 0) { |
| 3711 | /* See if it matches */ |
| 3712 | AVFormatContext *s = NULL; |
| 3713 | int matches = 0; |
| 3714 | |
| 3715 | if (avformat_open_input(&s, feed->feed_filename, NULL, NULL) >= 0) { |
| 3716 | /* set buffer size */ |
| 3717 | ffio_set_buf_size(s->pb, FFM_PACKET_SIZE); |
| 3718 | /* Now see if it matches */ |
| 3719 | if (s->nb_streams == feed->nb_streams) { |
| 3720 | matches = 1; |
| 3721 | for(i=0;i<s->nb_streams;i++) { |
| 3722 | AVStream *sf, *ss; |
| 3723 | sf = feed->streams[i]; |
| 3724 | ss = s->streams[i]; |
| 3725 | |
| 3726 | if (sf->index != ss->index || |
| 3727 | sf->id != ss->id) { |
| 3728 | http_log("Index & Id do not match for stream %d (%s)\n", |
| 3729 | i, feed->feed_filename); |
| 3730 | matches = 0; |
| 3731 | } else { |
| 3732 | AVCodecContext *ccf, *ccs; |
| 3733 | |
| 3734 | ccf = sf->codec; |
| 3735 | ccs = ss->codec; |
| 3736 | #define CHECK_CODEC(x) (ccf->x != ccs->x) |
| 3737 | |
| 3738 | if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) { |
| 3739 | http_log("Codecs do not match for stream %d\n", i); |
| 3740 | matches = 0; |
| 3741 | } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) { |
| 3742 | http_log("Codec bitrates do not match for stream %d\n", i); |
| 3743 | matches = 0; |
| 3744 | } else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) { |
| 3745 | if (CHECK_CODEC(time_base.den) || |
| 3746 | CHECK_CODEC(time_base.num) || |
| 3747 | CHECK_CODEC(width) || |
| 3748 | CHECK_CODEC(height)) { |
| 3749 | http_log("Codec width, height and framerate do not match for stream %d\n", i); |
| 3750 | matches = 0; |
| 3751 | } |
| 3752 | } else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) { |
| 3753 | if (CHECK_CODEC(sample_rate) || |
| 3754 | CHECK_CODEC(channels) || |
| 3755 | CHECK_CODEC(frame_size)) { |
| 3756 | http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", i); |
| 3757 | matches = 0; |
| 3758 | } |
| 3759 | } else { |
| 3760 | http_log("Unknown codec type\n"); |
| 3761 | matches = 0; |
| 3762 | } |
| 3763 | } |
| 3764 | if (!matches) |
| 3765 | break; |
| 3766 | } |
| 3767 | } else |
| 3768 | http_log("Deleting feed file '%s' as stream counts differ (%d != %d)\n", |
| 3769 | feed->feed_filename, s->nb_streams, feed->nb_streams); |
| 3770 | |
| 3771 | avformat_close_input(&s); |
| 3772 | } else |
| 3773 | http_log("Deleting feed file '%s' as it appears to be corrupt\n", |
| 3774 | feed->feed_filename); |
| 3775 | |
| 3776 | if (!matches) { |
| 3777 | if (feed->readonly) { |
| 3778 | http_log("Unable to delete feed file '%s' as it is marked readonly\n", |
| 3779 | feed->feed_filename); |
| 3780 | exit(1); |
| 3781 | } |
| 3782 | unlink(feed->feed_filename); |
| 3783 | } |
| 3784 | } |
| 3785 | if (avio_check(feed->feed_filename, AVIO_FLAG_WRITE) <= 0) { |
| 3786 | AVFormatContext *s = avformat_alloc_context(); |
| 3787 | |
| 3788 | if (feed->readonly) { |
| 3789 | http_log("Unable to create feed file '%s' as it is marked readonly\n", |
| 3790 | feed->feed_filename); |
| 3791 | exit(1); |
| 3792 | } |
| 3793 | |
| 3794 | /* only write the header of the ffm file */ |
| 3795 | if (avio_open(&s->pb, feed->feed_filename, AVIO_FLAG_WRITE) < 0) { |
| 3796 | http_log("Could not open output feed file '%s'\n", |
| 3797 | feed->feed_filename); |
| 3798 | exit(1); |
| 3799 | } |
| 3800 | s->oformat = feed->fmt; |
| 3801 | s->nb_streams = feed->nb_streams; |
| 3802 | s->streams = feed->streams; |
| 3803 | if (avformat_write_header(s, NULL) < 0) { |
| 3804 | http_log("Container doesn't support the required parameters\n"); |
| 3805 | exit(1); |
| 3806 | } |
| 3807 | /* XXX: need better API */ |
| 3808 | av_freep(&s->priv_data); |
| 3809 | avio_close(s->pb); |
| 3810 | s->streams = NULL; |
| 3811 | s->nb_streams = 0; |
| 3812 | avformat_free_context(s); |
| 3813 | } |
| 3814 | /* get feed size and write index */ |
| 3815 | fd = open(feed->feed_filename, O_RDONLY); |
| 3816 | if (fd < 0) { |
| 3817 | http_log("Could not open output feed file '%s'\n", |
| 3818 | feed->feed_filename); |
| 3819 | exit(1); |
| 3820 | } |
| 3821 | |
| 3822 | feed->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE); |
| 3823 | feed->feed_size = lseek(fd, 0, SEEK_END); |
| 3824 | /* ensure that we do not wrap before the end of file */ |
| 3825 | if (feed->feed_max_size && feed->feed_max_size < feed->feed_size) |
| 3826 | feed->feed_max_size = feed->feed_size; |
| 3827 | |
| 3828 | close(fd); |
| 3829 | } |
| 3830 | } |
| 3831 | |
| 3832 | /* compute the bandwidth used by each stream */ |
| 3833 | static void compute_bandwidth(void) |
| 3834 | { |
| 3835 | unsigned bandwidth; |
| 3836 | int i; |
| 3837 | FFStream *stream; |
| 3838 | |
| 3839 | for(stream = first_stream; stream; stream = stream->next) { |
| 3840 | bandwidth = 0; |
| 3841 | for(i=0;i<stream->nb_streams;i++) { |
| 3842 | AVStream *st = stream->streams[i]; |
| 3843 | switch(st->codec->codec_type) { |
| 3844 | case AVMEDIA_TYPE_AUDIO: |
| 3845 | case AVMEDIA_TYPE_VIDEO: |
| 3846 | bandwidth += st->codec->bit_rate; |
| 3847 | break; |
| 3848 | default: |
| 3849 | break; |
| 3850 | } |
| 3851 | } |
| 3852 | stream->bandwidth = (bandwidth + 999) / 1000; |
| 3853 | } |
| 3854 | } |
| 3855 | |
| 3856 | /* add a codec and set the default parameters */ |
| 3857 | static void add_codec(FFStream *stream, AVCodecContext *av) |
| 3858 | { |
| 3859 | AVStream *st; |
| 3860 | |
| 3861 | if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams)) |
| 3862 | return; |
| 3863 | |
| 3864 | /* compute default parameters */ |
| 3865 | switch(av->codec_type) { |
| 3866 | case AVMEDIA_TYPE_AUDIO: |
| 3867 | if (av->bit_rate == 0) |
| 3868 | av->bit_rate = 64000; |
| 3869 | if (av->sample_rate == 0) |
| 3870 | av->sample_rate = 22050; |
| 3871 | if (av->channels == 0) |
| 3872 | av->channels = 1; |
| 3873 | break; |
| 3874 | case AVMEDIA_TYPE_VIDEO: |
| 3875 | if (av->bit_rate == 0) |
| 3876 | av->bit_rate = 64000; |
| 3877 | if (av->time_base.num == 0){ |
| 3878 | av->time_base.den = 5; |
| 3879 | av->time_base.num = 1; |
| 3880 | } |
| 3881 | if (av->width == 0 || av->height == 0) { |
| 3882 | av->width = 160; |
| 3883 | av->height = 128; |
| 3884 | } |
| 3885 | /* Bitrate tolerance is less for streaming */ |
| 3886 | if (av->bit_rate_tolerance == 0) |
| 3887 | av->bit_rate_tolerance = FFMAX(av->bit_rate / 4, |
| 3888 | (int64_t)av->bit_rate*av->time_base.num/av->time_base.den); |
| 3889 | if (av->qmin == 0) |
| 3890 | av->qmin = 3; |
| 3891 | if (av->qmax == 0) |
| 3892 | av->qmax = 31; |
| 3893 | if (av->max_qdiff == 0) |
| 3894 | av->max_qdiff = 3; |
| 3895 | av->qcompress = 0.5; |
| 3896 | av->qblur = 0.5; |
| 3897 | |
| 3898 | if (!av->nsse_weight) |
| 3899 | av->nsse_weight = 8; |
| 3900 | |
| 3901 | av->frame_skip_cmp = FF_CMP_DCTMAX; |
| 3902 | if (!av->me_method) |
| 3903 | av->me_method = ME_EPZS; |
| 3904 | av->rc_buffer_aggressivity = 1.0; |
| 3905 | |
| 3906 | if (!av->rc_eq) |
| 3907 | av->rc_eq = av_strdup("tex^qComp"); |
| 3908 | if (!av->i_quant_factor) |
| 3909 | av->i_quant_factor = -0.8; |
| 3910 | if (!av->b_quant_factor) |
| 3911 | av->b_quant_factor = 1.25; |
| 3912 | if (!av->b_quant_offset) |
| 3913 | av->b_quant_offset = 1.25; |
| 3914 | if (!av->rc_max_rate) |
| 3915 | av->rc_max_rate = av->bit_rate * 2; |
| 3916 | |
| 3917 | if (av->rc_max_rate && !av->rc_buffer_size) { |
| 3918 | av->rc_buffer_size = av->rc_max_rate; |
| 3919 | } |
| 3920 | |
| 3921 | |
| 3922 | break; |
| 3923 | default: |
| 3924 | abort(); |
| 3925 | } |
| 3926 | |
| 3927 | st = av_mallocz(sizeof(AVStream)); |
| 3928 | if (!st) |
| 3929 | return; |
| 3930 | st->codec = avcodec_alloc_context3(NULL); |
| 3931 | stream->streams[stream->nb_streams++] = st; |
| 3932 | memcpy(st->codec, av, sizeof(AVCodecContext)); |
| 3933 | } |
| 3934 | |
| 3935 | static enum AVCodecID opt_codec(const char *name, enum AVMediaType type) |
| 3936 | { |
| 3937 | AVCodec *codec = avcodec_find_encoder_by_name(name); |
| 3938 | |
| 3939 | if (!codec || codec->type != type) |
| 3940 | return AV_CODEC_ID_NONE; |
| 3941 | return codec->id; |
| 3942 | } |
| 3943 | |
| 3944 | static int ffserver_opt_default(const char *opt, const char *arg, |
| 3945 | AVCodecContext *avctx, int type) |
| 3946 | { |
| 3947 | int ret = 0; |
| 3948 | const AVOption *o = av_opt_find(avctx, opt, NULL, type, 0); |
| 3949 | if(o) |
| 3950 | ret = av_opt_set(avctx, opt, arg, 0); |
| 3951 | return ret; |
| 3952 | } |
| 3953 | |
| 3954 | static int ffserver_opt_preset(const char *arg, |
| 3955 | AVCodecContext *avctx, int type, |
| 3956 | enum AVCodecID *audio_id, enum AVCodecID *video_id) |
| 3957 | { |
| 3958 | FILE *f=NULL; |
| 3959 | char filename[1000], tmp[1000], tmp2[1000], line[1000]; |
| 3960 | int ret = 0; |
| 3961 | AVCodec *codec = avcodec_find_encoder(avctx->codec_id); |
| 3962 | |
| 3963 | if (!(f = get_preset_file(filename, sizeof(filename), arg, 0, |
| 3964 | codec ? codec->name : NULL))) { |
| 3965 | fprintf(stderr, "File for preset '%s' not found\n", arg); |
| 3966 | return 1; |
| 3967 | } |
| 3968 | |
| 3969 | while(!feof(f)){ |
| 3970 | int e= fscanf(f, "%999[^\n]\n", line) - 1; |
| 3971 | if(line[0] == '#' && !e) |
| 3972 | continue; |
| 3973 | e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2; |
| 3974 | if(e){ |
| 3975 | fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line); |
| 3976 | ret = 1; |
| 3977 | break; |
| 3978 | } |
| 3979 | if(!strcmp(tmp, "acodec")){ |
| 3980 | *audio_id = opt_codec(tmp2, AVMEDIA_TYPE_AUDIO); |
| 3981 | }else if(!strcmp(tmp, "vcodec")){ |
| 3982 | *video_id = opt_codec(tmp2, AVMEDIA_TYPE_VIDEO); |
| 3983 | }else if(!strcmp(tmp, "scodec")){ |
| 3984 | /* opt_subtitle_codec(tmp2); */ |
| 3985 | }else if(ffserver_opt_default(tmp, tmp2, avctx, type) < 0){ |
| 3986 | fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2); |
| 3987 | ret = 1; |
| 3988 | break; |
| 3989 | } |
| 3990 | } |
| 3991 | |
| 3992 | fclose(f); |
| 3993 | |
| 3994 | return ret; |
| 3995 | } |
| 3996 | |
| 3997 | static AVOutputFormat *ffserver_guess_format(const char *short_name, const char *filename, const char *mime_type) |
| 3998 | { |
| 3999 | AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type); |
| 4000 | |
| 4001 | if (fmt) { |
| 4002 | AVOutputFormat *stream_fmt; |
| 4003 | char stream_format_name[64]; |
| 4004 | |
| 4005 | snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream", fmt->name); |
| 4006 | stream_fmt = av_guess_format(stream_format_name, NULL, NULL); |
| 4007 | |
| 4008 | if (stream_fmt) |
| 4009 | fmt = stream_fmt; |
| 4010 | } |
| 4011 | |
| 4012 | return fmt; |
| 4013 | } |
| 4014 | |
| 4015 | static void report_config_error(const char *filename, int line_num, int log_level, int *errors, const char *fmt, ...) |
| 4016 | { |
| 4017 | va_list vl; |
| 4018 | va_start(vl, fmt); |
| 4019 | av_log(NULL, log_level, "%s:%d: ", filename, line_num); |
| 4020 | av_vlog(NULL, log_level, fmt, vl); |
| 4021 | va_end(vl); |
| 4022 | |
| 4023 | (*errors)++; |
| 4024 | } |
| 4025 | |
| 4026 | static int parse_ffconfig(const char *filename) |
| 4027 | { |
| 4028 | FILE *f; |
| 4029 | char line[1024]; |
| 4030 | char cmd[64]; |
| 4031 | char arg[1024], arg2[1024]; |
| 4032 | const char *p; |
| 4033 | int val, errors, warnings, line_num; |
| 4034 | FFStream **last_stream, *stream, *redirect; |
| 4035 | FFStream **last_feed, *feed, *s; |
| 4036 | AVCodecContext audio_enc, video_enc; |
| 4037 | enum AVCodecID audio_id, video_id; |
| 4038 | int ret = 0; |
| 4039 | |
| 4040 | f = fopen(filename, "r"); |
| 4041 | if (!f) { |
| 4042 | ret = AVERROR(errno); |
| 4043 | av_log(NULL, AV_LOG_ERROR, "Could not open the configuration file '%s'\n", filename); |
| 4044 | return ret; |
| 4045 | } |
| 4046 | |
| 4047 | errors = warnings = 0; |
| 4048 | line_num = 0; |
| 4049 | first_stream = NULL; |
| 4050 | last_stream = &first_stream; |
| 4051 | first_feed = NULL; |
| 4052 | last_feed = &first_feed; |
| 4053 | stream = NULL; |
| 4054 | feed = NULL; |
| 4055 | redirect = NULL; |
| 4056 | audio_id = AV_CODEC_ID_NONE; |
| 4057 | video_id = AV_CODEC_ID_NONE; |
| 4058 | #define ERROR(...) report_config_error(filename, line_num, AV_LOG_ERROR, &errors, __VA_ARGS__) |
| 4059 | #define WARNING(...) report_config_error(filename, line_num, AV_LOG_WARNING, &warnings, __VA_ARGS__) |
| 4060 | |
| 4061 | for(;;) { |
| 4062 | if (fgets(line, sizeof(line), f) == NULL) |
| 4063 | break; |
| 4064 | line_num++; |
| 4065 | p = line; |
| 4066 | while (av_isspace(*p)) |
| 4067 | p++; |
| 4068 | if (*p == '\0' || *p == '#') |
| 4069 | continue; |
| 4070 | |
| 4071 | get_arg(cmd, sizeof(cmd), &p); |
| 4072 | |
| 4073 | if (!av_strcasecmp(cmd, "Port") || !av_strcasecmp(cmd, "HTTPPort")) { |
| 4074 | if (!av_strcasecmp(cmd, "Port")) |
| 4075 | WARNING("Port option is deprecated, use HTTPPort instead\n"); |
| 4076 | get_arg(arg, sizeof(arg), &p); |
| 4077 | val = atoi(arg); |
| 4078 | if (val < 1 || val > 65536) { |
| 4079 | ERROR("Invalid port: %s\n", arg); |
| 4080 | } |
| 4081 | if (val < 1024) |
| 4082 | WARNING("Trying to use IETF assigned system port: %d\n", val); |
| 4083 | my_http_addr.sin_port = htons(val); |
| 4084 | } else if (!av_strcasecmp(cmd, "HTTPBindAddress") || !av_strcasecmp(cmd, "BindAddress")) { |
| 4085 | if (!av_strcasecmp(cmd, "BindAddress")) |
| 4086 | WARNING("BindAddress option is deprecated, use HTTPBindAddress instead\n"); |
| 4087 | get_arg(arg, sizeof(arg), &p); |
| 4088 | if (resolve_host(&my_http_addr.sin_addr, arg) != 0) { |
| 4089 | ERROR("%s:%d: Invalid host/IP address: %s\n", arg); |
| 4090 | } |
| 4091 | } else if (!av_strcasecmp(cmd, "NoDaemon")) { |
| 4092 | WARNING("NoDaemon option has no effect, you should remove it\n"); |
| 4093 | } else if (!av_strcasecmp(cmd, "RTSPPort")) { |
| 4094 | get_arg(arg, sizeof(arg), &p); |
| 4095 | val = atoi(arg); |
| 4096 | if (val < 1 || val > 65536) { |
| 4097 | ERROR("%s:%d: Invalid port: %s\n", arg); |
| 4098 | } |
| 4099 | my_rtsp_addr.sin_port = htons(atoi(arg)); |
| 4100 | } else if (!av_strcasecmp(cmd, "RTSPBindAddress")) { |
| 4101 | get_arg(arg, sizeof(arg), &p); |
| 4102 | if (resolve_host(&my_rtsp_addr.sin_addr, arg) != 0) { |
| 4103 | ERROR("Invalid host/IP address: %s\n", arg); |
| 4104 | } |
| 4105 | } else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) { |
| 4106 | get_arg(arg, sizeof(arg), &p); |
| 4107 | val = atoi(arg); |
| 4108 | if (val < 1 || val > 65536) { |
| 4109 | ERROR("Invalid MaxHTTPConnections: %s\n", arg); |
| 4110 | } |
| 4111 | nb_max_http_connections = val; |
| 4112 | } else if (!av_strcasecmp(cmd, "MaxClients")) { |
| 4113 | get_arg(arg, sizeof(arg), &p); |
| 4114 | val = atoi(arg); |
| 4115 | if (val < 1 || val > nb_max_http_connections) { |
| 4116 | ERROR("Invalid MaxClients: %s\n", arg); |
| 4117 | } else { |
| 4118 | nb_max_connections = val; |
| 4119 | } |
| 4120 | } else if (!av_strcasecmp(cmd, "MaxBandwidth")) { |
| 4121 | int64_t llval; |
| 4122 | get_arg(arg, sizeof(arg), &p); |
| 4123 | llval = strtoll(arg, NULL, 10); |
| 4124 | if (llval < 10 || llval > 10000000) { |
| 4125 | ERROR("Invalid MaxBandwidth: %s\n", arg); |
| 4126 | } else |
| 4127 | max_bandwidth = llval; |
| 4128 | } else if (!av_strcasecmp(cmd, "CustomLog")) { |
| 4129 | if (!ffserver_debug) |
| 4130 | get_arg(logfilename, sizeof(logfilename), &p); |
| 4131 | } else if (!av_strcasecmp(cmd, "<Feed")) { |
| 4132 | /*********************************************/ |
| 4133 | /* Feed related options */ |
| 4134 | char *q; |
| 4135 | if (stream || feed) { |
| 4136 | ERROR("Already in a tag\n"); |
| 4137 | } else { |
| 4138 | feed = av_mallocz(sizeof(FFStream)); |
| 4139 | if (!feed) { |
| 4140 | ret = AVERROR(ENOMEM); |
| 4141 | goto end; |
| 4142 | } |
| 4143 | get_arg(feed->filename, sizeof(feed->filename), &p); |
| 4144 | q = strrchr(feed->filename, '>'); |
| 4145 | if (*q) |
| 4146 | *q = '\0'; |
| 4147 | |
| 4148 | for (s = first_feed; s; s = s->next) { |
| 4149 | if (!strcmp(feed->filename, s->filename)) { |
| 4150 | ERROR("Feed '%s' already registered\n", s->filename); |
| 4151 | } |
| 4152 | } |
| 4153 | |
| 4154 | feed->fmt = av_guess_format("ffm", NULL, NULL); |
| 4155 | /* default feed file */ |
| 4156 | snprintf(feed->feed_filename, sizeof(feed->feed_filename), |
| 4157 | "/tmp/%s.ffm", feed->filename); |
| 4158 | feed->feed_max_size = 5 * 1024 * 1024; |
| 4159 | feed->is_feed = 1; |
| 4160 | feed->feed = feed; /* self feeding :-) */ |
| 4161 | |
| 4162 | /* add in stream list */ |
| 4163 | *last_stream = feed; |
| 4164 | last_stream = &feed->next; |
| 4165 | /* add in feed list */ |
| 4166 | *last_feed = feed; |
| 4167 | last_feed = &feed->next_feed; |
| 4168 | } |
| 4169 | } else if (!av_strcasecmp(cmd, "Launch")) { |
| 4170 | if (feed) { |
| 4171 | int i; |
| 4172 | |
| 4173 | feed->child_argv = av_mallocz(64 * sizeof(char *)); |
| 4174 | if (!feed->child_argv) { |
| 4175 | ret = AVERROR(ENOMEM); |
| 4176 | goto end; |
| 4177 | } |
| 4178 | for (i = 0; i < 62; i++) { |
| 4179 | get_arg(arg, sizeof(arg), &p); |
| 4180 | if (!arg[0]) |
| 4181 | break; |
| 4182 | |
| 4183 | feed->child_argv[i] = av_strdup(arg); |
| 4184 | if (!feed->child_argv[i]) { |
| 4185 | ret = AVERROR(ENOMEM); |
| 4186 | goto end; |
| 4187 | } |
| 4188 | } |
| 4189 | |
| 4190 | feed->child_argv[i] = |
| 4191 | av_asprintf("http://%s:%d/%s", |
| 4192 | (my_http_addr.sin_addr.s_addr == INADDR_ANY) ? "127.0.0.1" : |
| 4193 | inet_ntoa(my_http_addr.sin_addr), ntohs(my_http_addr.sin_port), |
| 4194 | feed->filename); |
| 4195 | if (!feed->child_argv[i]) { |
| 4196 | ret = AVERROR(ENOMEM); |
| 4197 | goto end; |
| 4198 | } |
| 4199 | } |
| 4200 | } else if (!av_strcasecmp(cmd, "File") || !av_strcasecmp(cmd, "ReadOnlyFile")) { |
| 4201 | if (feed) { |
| 4202 | get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p); |
| 4203 | feed->readonly = !av_strcasecmp(cmd, "ReadOnlyFile"); |
| 4204 | } else if (stream) { |
| 4205 | get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p); |
| 4206 | } |
| 4207 | } else if (!av_strcasecmp(cmd, "Truncate")) { |
| 4208 | if (feed) { |
| 4209 | get_arg(arg, sizeof(arg), &p); |
| 4210 | /* assume Truncate is true in case no argument is specified */ |
| 4211 | if (!arg[0]) { |
| 4212 | feed->truncate = 1; |
| 4213 | } else { |
| 4214 | WARNING("Truncate N syntax in configuration file is deprecated, " |
| 4215 | "use Truncate alone with no arguments\n"); |
| 4216 | feed->truncate = strtod(arg, NULL); |
| 4217 | } |
| 4218 | } |
| 4219 | } else if (!av_strcasecmp(cmd, "FileMaxSize")) { |
| 4220 | if (feed) { |
| 4221 | char *p1; |
| 4222 | double fsize; |
| 4223 | |
| 4224 | get_arg(arg, sizeof(arg), &p); |
| 4225 | p1 = arg; |
| 4226 | fsize = strtod(p1, &p1); |
| 4227 | switch(av_toupper(*p1)) { |
| 4228 | case 'K': |
| 4229 | fsize *= 1024; |
| 4230 | break; |
| 4231 | case 'M': |
| 4232 | fsize *= 1024 * 1024; |
| 4233 | break; |
| 4234 | case 'G': |
| 4235 | fsize *= 1024 * 1024 * 1024; |
| 4236 | break; |
| 4237 | } |
| 4238 | feed->feed_max_size = (int64_t)fsize; |
| 4239 | if (feed->feed_max_size < FFM_PACKET_SIZE*4) { |
| 4240 | ERROR("Feed max file size is too small, must be at least %d\n", FFM_PACKET_SIZE*4); |
| 4241 | } |
| 4242 | } |
| 4243 | } else if (!av_strcasecmp(cmd, "</Feed>")) { |
| 4244 | if (!feed) { |
| 4245 | ERROR("No corresponding <Feed> for </Feed>\n"); |
| 4246 | } |
| 4247 | feed = NULL; |
| 4248 | } else if (!av_strcasecmp(cmd, "<Stream")) { |
| 4249 | /*********************************************/ |
| 4250 | /* Stream related options */ |
| 4251 | char *q; |
| 4252 | if (stream || feed) { |
| 4253 | ERROR("Already in a tag\n"); |
| 4254 | } else { |
| 4255 | FFStream *s; |
| 4256 | stream = av_mallocz(sizeof(FFStream)); |
| 4257 | if (!stream) { |
| 4258 | ret = AVERROR(ENOMEM); |
| 4259 | goto end; |
| 4260 | } |
| 4261 | get_arg(stream->filename, sizeof(stream->filename), &p); |
| 4262 | q = strrchr(stream->filename, '>'); |
| 4263 | if (q) |
| 4264 | *q = '\0'; |
| 4265 | |
| 4266 | for (s = first_stream; s; s = s->next) { |
| 4267 | if (!strcmp(stream->filename, s->filename)) { |
| 4268 | ERROR("Stream '%s' already registered\n", s->filename); |
| 4269 | } |
| 4270 | } |
| 4271 | |
| 4272 | stream->fmt = ffserver_guess_format(NULL, stream->filename, NULL); |
| 4273 | avcodec_get_context_defaults3(&video_enc, NULL); |
| 4274 | avcodec_get_context_defaults3(&audio_enc, NULL); |
| 4275 | |
| 4276 | audio_id = AV_CODEC_ID_NONE; |
| 4277 | video_id = AV_CODEC_ID_NONE; |
| 4278 | if (stream->fmt) { |
| 4279 | audio_id = stream->fmt->audio_codec; |
| 4280 | video_id = stream->fmt->video_codec; |
| 4281 | } |
| 4282 | |
| 4283 | *last_stream = stream; |
| 4284 | last_stream = &stream->next; |
| 4285 | } |
| 4286 | } else if (!av_strcasecmp(cmd, "Feed")) { |
| 4287 | get_arg(arg, sizeof(arg), &p); |
| 4288 | if (stream) { |
| 4289 | FFStream *sfeed; |
| 4290 | |
| 4291 | sfeed = first_feed; |
| 4292 | while (sfeed) { |
| 4293 | if (!strcmp(sfeed->filename, arg)) |
| 4294 | break; |
| 4295 | sfeed = sfeed->next_feed; |
| 4296 | } |
| 4297 | if (!sfeed) |
| 4298 | ERROR("Feed with name '%s' for stream '%s' is not defined\n", arg, stream->filename); |
| 4299 | else |
| 4300 | stream->feed = sfeed; |
| 4301 | } |
| 4302 | } else if (!av_strcasecmp(cmd, "Format")) { |
| 4303 | get_arg(arg, sizeof(arg), &p); |
| 4304 | if (stream) { |
| 4305 | if (!strcmp(arg, "status")) { |
| 4306 | stream->stream_type = STREAM_TYPE_STATUS; |
| 4307 | stream->fmt = NULL; |
| 4308 | } else { |
| 4309 | stream->stream_type = STREAM_TYPE_LIVE; |
| 4310 | /* JPEG cannot be used here, so use single frame MJPEG */ |
| 4311 | if (!strcmp(arg, "jpeg")) |
| 4312 | strcpy(arg, "mjpeg"); |
| 4313 | stream->fmt = ffserver_guess_format(arg, NULL, NULL); |
| 4314 | if (!stream->fmt) { |
| 4315 | ERROR("Unknown Format: %s\n", arg); |
| 4316 | } |
| 4317 | } |
| 4318 | if (stream->fmt) { |
| 4319 | audio_id = stream->fmt->audio_codec; |
| 4320 | video_id = stream->fmt->video_codec; |
| 4321 | } |
| 4322 | } |
| 4323 | } else if (!av_strcasecmp(cmd, "InputFormat")) { |
| 4324 | get_arg(arg, sizeof(arg), &p); |
| 4325 | if (stream) { |
| 4326 | stream->ifmt = av_find_input_format(arg); |
| 4327 | if (!stream->ifmt) { |
| 4328 | ERROR("Unknown input format: %s\n", arg); |
| 4329 | } |
| 4330 | } |
| 4331 | } else if (!av_strcasecmp(cmd, "FaviconURL")) { |
| 4332 | if (stream && stream->stream_type == STREAM_TYPE_STATUS) { |
| 4333 | get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p); |
| 4334 | } else { |
| 4335 | ERROR("FaviconURL only permitted for status streams\n"); |
| 4336 | } |
| 4337 | } else if (!av_strcasecmp(cmd, "Author") || |
| 4338 | !av_strcasecmp(cmd, "Comment") || |
| 4339 | !av_strcasecmp(cmd, "Copyright") || |
| 4340 | !av_strcasecmp(cmd, "Title")) { |
| 4341 | get_arg(arg, sizeof(arg), &p); |
| 4342 | |
| 4343 | if (stream) { |
| 4344 | char key[32]; |
| 4345 | int i, ret; |
| 4346 | |
| 4347 | for (i = 0; i < strlen(cmd); i++) |
| 4348 | key[i] = av_tolower(cmd[i]); |
| 4349 | key[i] = 0; |
| 4350 | WARNING("'%s' option in configuration file is deprecated, " |
| 4351 | "use 'Metadata %s VALUE' instead\n", cmd, key); |
| 4352 | if ((ret = av_dict_set(&stream->metadata, key, arg, 0)) < 0) { |
| 4353 | ERROR("Could not set metadata '%s' to value '%s': %s\n", |
| 4354 | key, arg, av_err2str(ret)); |
| 4355 | } |
| 4356 | } |
| 4357 | } else if (!av_strcasecmp(cmd, "Metadata")) { |
| 4358 | get_arg(arg, sizeof(arg), &p); |
| 4359 | get_arg(arg2, sizeof(arg2), &p); |
| 4360 | if (stream) { |
| 4361 | int ret; |
| 4362 | if ((ret = av_dict_set(&stream->metadata, arg, arg2, 0)) < 0) { |
| 4363 | ERROR("Could not set metadata '%s' to value '%s': %s\n", |
| 4364 | arg, arg2, av_err2str(ret)); |
| 4365 | } |
| 4366 | } |
| 4367 | } else if (!av_strcasecmp(cmd, "Preroll")) { |
| 4368 | get_arg(arg, sizeof(arg), &p); |
| 4369 | if (stream) |
| 4370 | stream->prebuffer = atof(arg) * 1000; |
| 4371 | } else if (!av_strcasecmp(cmd, "StartSendOnKey")) { |
| 4372 | if (stream) |
| 4373 | stream->send_on_key = 1; |
| 4374 | } else if (!av_strcasecmp(cmd, "AudioCodec")) { |
| 4375 | get_arg(arg, sizeof(arg), &p); |
| 4376 | audio_id = opt_codec(arg, AVMEDIA_TYPE_AUDIO); |
| 4377 | if (audio_id == AV_CODEC_ID_NONE) { |
| 4378 | ERROR("Unknown AudioCodec: %s\n", arg); |
| 4379 | } |
| 4380 | } else if (!av_strcasecmp(cmd, "VideoCodec")) { |
| 4381 | get_arg(arg, sizeof(arg), &p); |
| 4382 | video_id = opt_codec(arg, AVMEDIA_TYPE_VIDEO); |
| 4383 | if (video_id == AV_CODEC_ID_NONE) { |
| 4384 | ERROR("Unknown VideoCodec: %s\n", arg); |
| 4385 | } |
| 4386 | } else if (!av_strcasecmp(cmd, "MaxTime")) { |
| 4387 | get_arg(arg, sizeof(arg), &p); |
| 4388 | if (stream) |
| 4389 | stream->max_time = atof(arg) * 1000; |
| 4390 | } else if (!av_strcasecmp(cmd, "AudioBitRate")) { |
| 4391 | get_arg(arg, sizeof(arg), &p); |
| 4392 | if (stream) |
| 4393 | audio_enc.bit_rate = lrintf(atof(arg) * 1000); |
| 4394 | } else if (!av_strcasecmp(cmd, "AudioChannels")) { |
| 4395 | get_arg(arg, sizeof(arg), &p); |
| 4396 | if (stream) |
| 4397 | audio_enc.channels = atoi(arg); |
| 4398 | } else if (!av_strcasecmp(cmd, "AudioSampleRate")) { |
| 4399 | get_arg(arg, sizeof(arg), &p); |
| 4400 | if (stream) |
| 4401 | audio_enc.sample_rate = atoi(arg); |
| 4402 | } else if (!av_strcasecmp(cmd, "VideoBitRateRange")) { |
| 4403 | if (stream) { |
| 4404 | int minrate, maxrate; |
| 4405 | |
| 4406 | get_arg(arg, sizeof(arg), &p); |
| 4407 | |
| 4408 | if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) { |
| 4409 | video_enc.rc_min_rate = minrate * 1000; |
| 4410 | video_enc.rc_max_rate = maxrate * 1000; |
| 4411 | } else { |
| 4412 | ERROR("Incorrect format for VideoBitRateRange -- should be <min>-<max>: %s\n", arg); |
| 4413 | } |
| 4414 | } |
| 4415 | } else if (!av_strcasecmp(cmd, "Debug")) { |
| 4416 | if (stream) { |
| 4417 | get_arg(arg, sizeof(arg), &p); |
| 4418 | video_enc.debug = strtol(arg,0,0); |
| 4419 | } |
| 4420 | } else if (!av_strcasecmp(cmd, "Strict")) { |
| 4421 | if (stream) { |
| 4422 | get_arg(arg, sizeof(arg), &p); |
| 4423 | video_enc.strict_std_compliance = atoi(arg); |
| 4424 | } |
| 4425 | } else if (!av_strcasecmp(cmd, "VideoBufferSize")) { |
| 4426 | if (stream) { |
| 4427 | get_arg(arg, sizeof(arg), &p); |
| 4428 | video_enc.rc_buffer_size = atoi(arg) * 8*1024; |
| 4429 | } |
| 4430 | } else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) { |
| 4431 | if (stream) { |
| 4432 | get_arg(arg, sizeof(arg), &p); |
| 4433 | video_enc.bit_rate_tolerance = atoi(arg) * 1000; |
| 4434 | } |
| 4435 | } else if (!av_strcasecmp(cmd, "VideoBitRate")) { |
| 4436 | get_arg(arg, sizeof(arg), &p); |
| 4437 | if (stream) { |
| 4438 | video_enc.bit_rate = atoi(arg) * 1000; |
| 4439 | } |
| 4440 | } else if (!av_strcasecmp(cmd, "VideoSize")) { |
| 4441 | get_arg(arg, sizeof(arg), &p); |
| 4442 | if (stream) { |
| 4443 | ret = av_parse_video_size(&video_enc.width, &video_enc.height, arg); |
| 4444 | if (ret < 0) { |
| 4445 | ERROR("Invalid video size '%s'\n", arg); |
| 4446 | } else { |
| 4447 | if ((video_enc.width % 16) != 0 || |
| 4448 | (video_enc.height % 16) != 0) { |
| 4449 | ERROR("Image size must be a multiple of 16\n"); |
| 4450 | } |
| 4451 | } |
| 4452 | } |
| 4453 | } else if (!av_strcasecmp(cmd, "VideoFrameRate")) { |
| 4454 | get_arg(arg, sizeof(arg), &p); |
| 4455 | if (stream) { |
| 4456 | AVRational frame_rate; |
| 4457 | if (av_parse_video_rate(&frame_rate, arg) < 0) { |
| 4458 | ERROR("Incorrect frame rate: %s\n", arg); |
| 4459 | } else { |
| 4460 | video_enc.time_base.num = frame_rate.den; |
| 4461 | video_enc.time_base.den = frame_rate.num; |
| 4462 | } |
| 4463 | } |
| 4464 | } else if (!av_strcasecmp(cmd, "PixelFormat")) { |
| 4465 | get_arg(arg, sizeof(arg), &p); |
| 4466 | if (stream) { |
| 4467 | video_enc.pix_fmt = av_get_pix_fmt(arg); |
| 4468 | if (video_enc.pix_fmt == AV_PIX_FMT_NONE) { |
| 4469 | ERROR("Unknown pixel format: %s\n", arg); |
| 4470 | } |
| 4471 | } |
| 4472 | } else if (!av_strcasecmp(cmd, "VideoGopSize")) { |
| 4473 | get_arg(arg, sizeof(arg), &p); |
| 4474 | if (stream) |
| 4475 | video_enc.gop_size = atoi(arg); |
| 4476 | } else if (!av_strcasecmp(cmd, "VideoIntraOnly")) { |
| 4477 | if (stream) |
| 4478 | video_enc.gop_size = 1; |
| 4479 | } else if (!av_strcasecmp(cmd, "VideoHighQuality")) { |
| 4480 | if (stream) |
| 4481 | video_enc.mb_decision = FF_MB_DECISION_BITS; |
| 4482 | } else if (!av_strcasecmp(cmd, "Video4MotionVector")) { |
| 4483 | if (stream) { |
| 4484 | video_enc.mb_decision = FF_MB_DECISION_BITS; //FIXME remove |
| 4485 | video_enc.flags |= CODEC_FLAG_4MV; |
| 4486 | } |
| 4487 | } else if (!av_strcasecmp(cmd, "AVOptionVideo") || |
| 4488 | !av_strcasecmp(cmd, "AVOptionAudio")) { |
| 4489 | AVCodecContext *avctx; |
| 4490 | int type; |
| 4491 | get_arg(arg, sizeof(arg), &p); |
| 4492 | get_arg(arg2, sizeof(arg2), &p); |
| 4493 | if (!av_strcasecmp(cmd, "AVOptionVideo")) { |
| 4494 | avctx = &video_enc; |
| 4495 | type = AV_OPT_FLAG_VIDEO_PARAM; |
| 4496 | } else { |
| 4497 | avctx = &audio_enc; |
| 4498 | type = AV_OPT_FLAG_AUDIO_PARAM; |
| 4499 | } |
| 4500 | if (ffserver_opt_default(arg, arg2, avctx, type|AV_OPT_FLAG_ENCODING_PARAM)) { |
| 4501 | ERROR("Error setting %s option to %s %s\n", cmd, arg, arg2); |
| 4502 | } |
| 4503 | } else if (!av_strcasecmp(cmd, "AVPresetVideo") || |
| 4504 | !av_strcasecmp(cmd, "AVPresetAudio")) { |
| 4505 | AVCodecContext *avctx; |
| 4506 | int type; |
| 4507 | get_arg(arg, sizeof(arg), &p); |
| 4508 | if (!av_strcasecmp(cmd, "AVPresetVideo")) { |
| 4509 | avctx = &video_enc; |
| 4510 | video_enc.codec_id = video_id; |
| 4511 | type = AV_OPT_FLAG_VIDEO_PARAM; |
| 4512 | } else { |
| 4513 | avctx = &audio_enc; |
| 4514 | audio_enc.codec_id = audio_id; |
| 4515 | type = AV_OPT_FLAG_AUDIO_PARAM; |
| 4516 | } |
| 4517 | if (ffserver_opt_preset(arg, avctx, type|AV_OPT_FLAG_ENCODING_PARAM, &audio_id, &video_id)) { |
| 4518 | ERROR("AVPreset error: %s\n", arg); |
| 4519 | } |
| 4520 | } else if (!av_strcasecmp(cmd, "VideoTag")) { |
| 4521 | get_arg(arg, sizeof(arg), &p); |
| 4522 | if ((strlen(arg) == 4) && stream) |
| 4523 | video_enc.codec_tag = MKTAG(arg[0], arg[1], arg[2], arg[3]); |
| 4524 | } else if (!av_strcasecmp(cmd, "BitExact")) { |
| 4525 | if (stream) |
| 4526 | video_enc.flags |= CODEC_FLAG_BITEXACT; |
| 4527 | } else if (!av_strcasecmp(cmd, "DctFastint")) { |
| 4528 | if (stream) |
| 4529 | video_enc.dct_algo = FF_DCT_FASTINT; |
| 4530 | } else if (!av_strcasecmp(cmd, "IdctSimple")) { |
| 4531 | if (stream) |
| 4532 | video_enc.idct_algo = FF_IDCT_SIMPLE; |
| 4533 | } else if (!av_strcasecmp(cmd, "Qscale")) { |
| 4534 | get_arg(arg, sizeof(arg), &p); |
| 4535 | if (stream) { |
| 4536 | video_enc.flags |= CODEC_FLAG_QSCALE; |
| 4537 | video_enc.global_quality = FF_QP2LAMBDA * atoi(arg); |
| 4538 | } |
| 4539 | } else if (!av_strcasecmp(cmd, "VideoQDiff")) { |
| 4540 | get_arg(arg, sizeof(arg), &p); |
| 4541 | if (stream) { |
| 4542 | video_enc.max_qdiff = atoi(arg); |
| 4543 | if (video_enc.max_qdiff < 1 || video_enc.max_qdiff > 31) { |
| 4544 | ERROR("VideoQDiff out of range\n"); |
| 4545 | } |
| 4546 | } |
| 4547 | } else if (!av_strcasecmp(cmd, "VideoQMax")) { |
| 4548 | get_arg(arg, sizeof(arg), &p); |
| 4549 | if (stream) { |
| 4550 | video_enc.qmax = atoi(arg); |
| 4551 | if (video_enc.qmax < 1 || video_enc.qmax > 31) { |
| 4552 | ERROR("VideoQMax out of range\n"); |
| 4553 | } |
| 4554 | } |
| 4555 | } else if (!av_strcasecmp(cmd, "VideoQMin")) { |
| 4556 | get_arg(arg, sizeof(arg), &p); |
| 4557 | if (stream) { |
| 4558 | video_enc.qmin = atoi(arg); |
| 4559 | if (video_enc.qmin < 1 || video_enc.qmin > 31) { |
| 4560 | ERROR("VideoQMin out of range\n"); |
| 4561 | } |
| 4562 | } |
| 4563 | } else if (!av_strcasecmp(cmd, "LumiMask")) { |
| 4564 | get_arg(arg, sizeof(arg), &p); |
| 4565 | if (stream) |
| 4566 | video_enc.lumi_masking = atof(arg); |
| 4567 | } else if (!av_strcasecmp(cmd, "DarkMask")) { |
| 4568 | get_arg(arg, sizeof(arg), &p); |
| 4569 | if (stream) |
| 4570 | video_enc.dark_masking = atof(arg); |
| 4571 | } else if (!av_strcasecmp(cmd, "NoVideo")) { |
| 4572 | video_id = AV_CODEC_ID_NONE; |
| 4573 | } else if (!av_strcasecmp(cmd, "NoAudio")) { |
| 4574 | audio_id = AV_CODEC_ID_NONE; |
| 4575 | } else if (!av_strcasecmp(cmd, "ACL")) { |
| 4576 | parse_acl_row(stream, feed, NULL, p, filename, line_num); |
| 4577 | } else if (!av_strcasecmp(cmd, "DynamicACL")) { |
| 4578 | if (stream) { |
| 4579 | get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), &p); |
| 4580 | } |
| 4581 | } else if (!av_strcasecmp(cmd, "RTSPOption")) { |
| 4582 | get_arg(arg, sizeof(arg), &p); |
| 4583 | if (stream) { |
| 4584 | av_freep(&stream->rtsp_option); |
| 4585 | stream->rtsp_option = av_strdup(arg); |
| 4586 | } |
| 4587 | } else if (!av_strcasecmp(cmd, "MulticastAddress")) { |
| 4588 | get_arg(arg, sizeof(arg), &p); |
| 4589 | if (stream) { |
| 4590 | if (resolve_host(&stream->multicast_ip, arg) != 0) { |
| 4591 | ERROR("Invalid host/IP address: %s\n", arg); |
| 4592 | } |
| 4593 | stream->is_multicast = 1; |
| 4594 | stream->loop = 1; /* default is looping */ |
| 4595 | } |
| 4596 | } else if (!av_strcasecmp(cmd, "MulticastPort")) { |
| 4597 | get_arg(arg, sizeof(arg), &p); |
| 4598 | if (stream) |
| 4599 | stream->multicast_port = atoi(arg); |
| 4600 | } else if (!av_strcasecmp(cmd, "MulticastTTL")) { |
| 4601 | get_arg(arg, sizeof(arg), &p); |
| 4602 | if (stream) |
| 4603 | stream->multicast_ttl = atoi(arg); |
| 4604 | } else if (!av_strcasecmp(cmd, "NoLoop")) { |
| 4605 | if (stream) |
| 4606 | stream->loop = 0; |
| 4607 | } else if (!av_strcasecmp(cmd, "</Stream>")) { |
| 4608 | if (!stream) { |
| 4609 | ERROR("No corresponding <Stream> for </Stream>\n"); |
| 4610 | } else { |
| 4611 | if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) { |
| 4612 | if (audio_id != AV_CODEC_ID_NONE) { |
| 4613 | audio_enc.codec_type = AVMEDIA_TYPE_AUDIO; |
| 4614 | audio_enc.codec_id = audio_id; |
| 4615 | add_codec(stream, &audio_enc); |
| 4616 | } |
| 4617 | if (video_id != AV_CODEC_ID_NONE) { |
| 4618 | video_enc.codec_type = AVMEDIA_TYPE_VIDEO; |
| 4619 | video_enc.codec_id = video_id; |
| 4620 | add_codec(stream, &video_enc); |
| 4621 | } |
| 4622 | } |
| 4623 | stream = NULL; |
| 4624 | } |
| 4625 | } else if (!av_strcasecmp(cmd, "<Redirect")) { |
| 4626 | /*********************************************/ |
| 4627 | char *q; |
| 4628 | if (stream || feed || redirect) { |
| 4629 | ERROR("Already in a tag\n"); |
| 4630 | } else { |
| 4631 | redirect = av_mallocz(sizeof(FFStream)); |
| 4632 | if (!redirect) { |
| 4633 | ret = AVERROR(ENOMEM); |
| 4634 | goto end; |
| 4635 | } |
| 4636 | *last_stream = redirect; |
| 4637 | last_stream = &redirect->next; |
| 4638 | |
| 4639 | get_arg(redirect->filename, sizeof(redirect->filename), &p); |
| 4640 | q = strrchr(redirect->filename, '>'); |
| 4641 | if (*q) |
| 4642 | *q = '\0'; |
| 4643 | redirect->stream_type = STREAM_TYPE_REDIRECT; |
| 4644 | } |
| 4645 | } else if (!av_strcasecmp(cmd, "URL")) { |
| 4646 | if (redirect) |
| 4647 | get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), &p); |
| 4648 | } else if (!av_strcasecmp(cmd, "</Redirect>")) { |
| 4649 | if (!redirect) { |
| 4650 | ERROR("No corresponding <Redirect> for </Redirect>\n"); |
| 4651 | } else { |
| 4652 | if (!redirect->feed_filename[0]) { |
| 4653 | ERROR("No URL found for <Redirect>\n"); |
| 4654 | } |
| 4655 | redirect = NULL; |
| 4656 | } |
| 4657 | } else if (!av_strcasecmp(cmd, "LoadModule")) { |
| 4658 | ERROR("Loadable modules no longer supported\n"); |
| 4659 | } else { |
| 4660 | ERROR("Incorrect keyword: '%s'\n", cmd); |
| 4661 | } |
| 4662 | } |
| 4663 | #undef ERROR |
| 4664 | |
| 4665 | end: |
| 4666 | fclose(f); |
| 4667 | if (ret < 0) |
| 4668 | return ret; |
| 4669 | if (errors) |
| 4670 | return AVERROR(EINVAL); |
| 4671 | else |
| 4672 | return 0; |
| 4673 | } |
| 4674 | |
| 4675 | static void handle_child_exit(int sig) |
| 4676 | { |
| 4677 | pid_t pid; |
| 4678 | int status; |
| 4679 | |
| 4680 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
| 4681 | FFStream *feed; |
| 4682 | |
| 4683 | for (feed = first_feed; feed; feed = feed->next) { |
| 4684 | if (feed->pid == pid) { |
| 4685 | int uptime = time(0) - feed->pid_start; |
| 4686 | |
| 4687 | feed->pid = 0; |
| 4688 | fprintf(stderr, "%s: Pid %d exited with status %d after %d seconds\n", feed->filename, pid, status, uptime); |
| 4689 | |
| 4690 | if (uptime < 30) |
| 4691 | /* Turn off any more restarts */ |
| 4692 | feed->child_argv = 0; |
| 4693 | } |
| 4694 | } |
| 4695 | } |
| 4696 | |
| 4697 | need_to_start_children = 1; |
| 4698 | } |
| 4699 | |
| 4700 | static void opt_debug(void) |
| 4701 | { |
| 4702 | ffserver_debug = 1; |
| 4703 | logfilename[0] = '-'; |
| 4704 | } |
| 4705 | |
| 4706 | void show_help_default(const char *opt, const char *arg) |
| 4707 | { |
| 4708 | printf("usage: ffserver [options]\n" |
| 4709 | "Hyper fast multi format Audio/Video streaming server\n"); |
| 4710 | printf("\n"); |
| 4711 | show_help_options(options, "Main options:", 0, 0, 0); |
| 4712 | } |
| 4713 | |
| 4714 | static const OptionDef options[] = { |
| 4715 | #include "cmdutils_common_opts.h" |
| 4716 | { "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" }, |
| 4717 | { "d", 0, {(void*)opt_debug}, "enable debug mode" }, |
| 4718 | { "f", HAS_ARG | OPT_STRING, {(void*)&config_filename }, "use configfile instead of /etc/ffserver.conf", "configfile" }, |
| 4719 | { NULL }, |
| 4720 | }; |
| 4721 | |
| 4722 | int main(int argc, char **argv) |
| 4723 | { |
| 4724 | struct sigaction sigact = { { 0 } }; |
| 4725 | int ret = 0; |
| 4726 | |
| 4727 | config_filename = av_strdup("/etc/ffserver.conf"); |
| 4728 | |
| 4729 | parse_loglevel(argc, argv, options); |
| 4730 | av_register_all(); |
| 4731 | avformat_network_init(); |
| 4732 | |
| 4733 | show_banner(argc, argv, options); |
| 4734 | |
| 4735 | my_program_name = argv[0]; |
| 4736 | |
| 4737 | parse_options(NULL, argc, argv, options, NULL); |
| 4738 | |
| 4739 | unsetenv("http_proxy"); /* Kill the http_proxy */ |
| 4740 | |
| 4741 | av_lfg_init(&random_state, av_get_random_seed()); |
| 4742 | |
| 4743 | sigact.sa_handler = handle_child_exit; |
| 4744 | sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART; |
| 4745 | sigaction(SIGCHLD, &sigact, 0); |
| 4746 | |
| 4747 | if ((ret = parse_ffconfig(config_filename)) < 0) { |
| 4748 | fprintf(stderr, "Error reading configuration file '%s': %s\n", |
| 4749 | config_filename, av_err2str(ret)); |
| 4750 | exit(1); |
| 4751 | } |
| 4752 | av_freep(&config_filename); |
| 4753 | |
| 4754 | /* open log file if needed */ |
| 4755 | if (logfilename[0] != '\0') { |
| 4756 | if (!strcmp(logfilename, "-")) |
| 4757 | logfile = stdout; |
| 4758 | else |
| 4759 | logfile = fopen(logfilename, "a"); |
| 4760 | av_log_set_callback(http_av_log); |
| 4761 | } |
| 4762 | |
| 4763 | build_file_streams(); |
| 4764 | |
| 4765 | build_feed_streams(); |
| 4766 | |
| 4767 | compute_bandwidth(); |
| 4768 | |
| 4769 | /* signal init */ |
| 4770 | signal(SIGPIPE, SIG_IGN); |
| 4771 | |
| 4772 | if (http_server() < 0) { |
| 4773 | http_log("Could not start server\n"); |
| 4774 | exit(1); |
| 4775 | } |
| 4776 | |
| 4777 | return 0; |
| 4778 | } |