| 1 | /* |
| 2 | * Copyright (c) 2003 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 | * simple media player based on the FFmpeg libraries |
| 24 | */ |
| 25 | |
| 26 | #include "config.h" |
| 27 | #include <inttypes.h> |
| 28 | #include <math.h> |
| 29 | #include <limits.h> |
| 30 | #include <signal.h> |
| 31 | #include <stdint.h> |
| 32 | |
| 33 | #include "libavutil/avstring.h" |
| 34 | #include "libavutil/colorspace.h" |
| 35 | #include "libavutil/mathematics.h" |
| 36 | #include "libavutil/pixdesc.h" |
| 37 | #include "libavutil/imgutils.h" |
| 38 | #include "libavutil/dict.h" |
| 39 | #include "libavutil/parseutils.h" |
| 40 | #include "libavutil/samplefmt.h" |
| 41 | #include "libavutil/avassert.h" |
| 42 | #include "libavutil/time.h" |
| 43 | #include "libavformat/avformat.h" |
| 44 | #include "libavdevice/avdevice.h" |
| 45 | #include "libswscale/swscale.h" |
| 46 | #include "libavutil/opt.h" |
| 47 | #include "libavcodec/avfft.h" |
| 48 | #include "libswresample/swresample.h" |
| 49 | |
| 50 | #if CONFIG_AVFILTER |
| 51 | # include "libavfilter/avcodec.h" |
| 52 | # include "libavfilter/avfilter.h" |
| 53 | # include "libavfilter/buffersink.h" |
| 54 | # include "libavfilter/buffersrc.h" |
| 55 | #endif |
| 56 | |
| 57 | #include <SDL.h> |
| 58 | #include <SDL_thread.h> |
| 59 | |
| 60 | #include "cmdutils.h" |
| 61 | |
| 62 | #include <assert.h> |
| 63 | |
| 64 | const char program_name[] = "ffplay"; |
| 65 | const int program_birth_year = 2003; |
| 66 | |
| 67 | #define MAX_QUEUE_SIZE (15 * 1024 * 1024) |
| 68 | #define MIN_FRAMES 5 |
| 69 | |
| 70 | /* Minimum SDL audio buffer size, in samples. */ |
| 71 | #define SDL_AUDIO_MIN_BUFFER_SIZE 512 |
| 72 | /* Calculate actual buffer size keeping in mind not cause too frequent audio callbacks */ |
| 73 | #define SDL_AUDIO_MAX_CALLBACKS_PER_SEC 30 |
| 74 | |
| 75 | /* no AV sync correction is done if below the minimum AV sync threshold */ |
| 76 | #define AV_SYNC_THRESHOLD_MIN 0.04 |
| 77 | /* AV sync correction is done if above the maximum AV sync threshold */ |
| 78 | #define AV_SYNC_THRESHOLD_MAX 0.1 |
| 79 | /* If a frame duration is longer than this, it will not be duplicated to compensate AV sync */ |
| 80 | #define AV_SYNC_FRAMEDUP_THRESHOLD 0.1 |
| 81 | /* no AV correction is done if too big error */ |
| 82 | #define AV_NOSYNC_THRESHOLD 10.0 |
| 83 | |
| 84 | /* maximum audio speed change to get correct sync */ |
| 85 | #define SAMPLE_CORRECTION_PERCENT_MAX 10 |
| 86 | |
| 87 | /* external clock speed adjustment constants for realtime sources based on buffer fullness */ |
| 88 | #define EXTERNAL_CLOCK_SPEED_MIN 0.900 |
| 89 | #define EXTERNAL_CLOCK_SPEED_MAX 1.010 |
| 90 | #define EXTERNAL_CLOCK_SPEED_STEP 0.001 |
| 91 | |
| 92 | /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */ |
| 93 | #define AUDIO_DIFF_AVG_NB 20 |
| 94 | |
| 95 | /* polls for possible required screen refresh at least this often, should be less than 1/fps */ |
| 96 | #define REFRESH_RATE 0.01 |
| 97 | |
| 98 | /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */ |
| 99 | /* TODO: We assume that a decoded and resampled frame fits into this buffer */ |
| 100 | #define SAMPLE_ARRAY_SIZE (8 * 65536) |
| 101 | |
| 102 | #define CURSOR_HIDE_DELAY 1000000 |
| 103 | |
| 104 | static int64_t sws_flags = SWS_BICUBIC; |
| 105 | |
| 106 | typedef struct MyAVPacketList { |
| 107 | AVPacket pkt; |
| 108 | struct MyAVPacketList *next; |
| 109 | int serial; |
| 110 | } MyAVPacketList; |
| 111 | |
| 112 | typedef struct PacketQueue { |
| 113 | MyAVPacketList *first_pkt, *last_pkt; |
| 114 | int nb_packets; |
| 115 | int size; |
| 116 | int abort_request; |
| 117 | int serial; |
| 118 | SDL_mutex *mutex; |
| 119 | SDL_cond *cond; |
| 120 | } PacketQueue; |
| 121 | |
| 122 | #define VIDEO_PICTURE_QUEUE_SIZE 3 |
| 123 | #define SUBPICTURE_QUEUE_SIZE 16 |
| 124 | |
| 125 | typedef struct VideoPicture { |
| 126 | double pts; // presentation timestamp for this picture |
| 127 | double duration; // estimated duration based on frame rate |
| 128 | int64_t pos; // byte position in file |
| 129 | SDL_Overlay *bmp; |
| 130 | int width, height; /* source height & width */ |
| 131 | int allocated; |
| 132 | int reallocate; |
| 133 | int serial; |
| 134 | |
| 135 | AVRational sar; |
| 136 | } VideoPicture; |
| 137 | |
| 138 | typedef struct SubPicture { |
| 139 | double pts; /* presentation time stamp for this picture */ |
| 140 | AVSubtitle sub; |
| 141 | int serial; |
| 142 | } SubPicture; |
| 143 | |
| 144 | typedef struct AudioParams { |
| 145 | int freq; |
| 146 | int channels; |
| 147 | int64_t channel_layout; |
| 148 | enum AVSampleFormat fmt; |
| 149 | int frame_size; |
| 150 | int bytes_per_sec; |
| 151 | } AudioParams; |
| 152 | |
| 153 | typedef struct Clock { |
| 154 | double pts; /* clock base */ |
| 155 | double pts_drift; /* clock base minus time at which we updated the clock */ |
| 156 | double last_updated; |
| 157 | double speed; |
| 158 | int serial; /* clock is based on a packet with this serial */ |
| 159 | int paused; |
| 160 | int *queue_serial; /* pointer to the current packet queue serial, used for obsolete clock detection */ |
| 161 | } Clock; |
| 162 | |
| 163 | enum { |
| 164 | AV_SYNC_AUDIO_MASTER, /* default choice */ |
| 165 | AV_SYNC_VIDEO_MASTER, |
| 166 | AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */ |
| 167 | }; |
| 168 | |
| 169 | typedef struct VideoState { |
| 170 | SDL_Thread *read_tid; |
| 171 | SDL_Thread *video_tid; |
| 172 | AVInputFormat *iformat; |
| 173 | int no_background; |
| 174 | int abort_request; |
| 175 | int force_refresh; |
| 176 | int paused; |
| 177 | int last_paused; |
| 178 | int queue_attachments_req; |
| 179 | int seek_req; |
| 180 | int seek_flags; |
| 181 | int64_t seek_pos; |
| 182 | int64_t seek_rel; |
| 183 | int read_pause_return; |
| 184 | AVFormatContext *ic; |
| 185 | int realtime; |
| 186 | int audio_finished; |
| 187 | int video_finished; |
| 188 | |
| 189 | Clock audclk; |
| 190 | Clock vidclk; |
| 191 | Clock extclk; |
| 192 | |
| 193 | int audio_stream; |
| 194 | |
| 195 | int av_sync_type; |
| 196 | |
| 197 | double audio_clock; |
| 198 | int audio_clock_serial; |
| 199 | double audio_diff_cum; /* used for AV difference average computation */ |
| 200 | double audio_diff_avg_coef; |
| 201 | double audio_diff_threshold; |
| 202 | int audio_diff_avg_count; |
| 203 | AVStream *audio_st; |
| 204 | PacketQueue audioq; |
| 205 | int audio_hw_buf_size; |
| 206 | uint8_t silence_buf[SDL_AUDIO_MIN_BUFFER_SIZE]; |
| 207 | uint8_t *audio_buf; |
| 208 | uint8_t *audio_buf1; |
| 209 | unsigned int audio_buf_size; /* in bytes */ |
| 210 | unsigned int audio_buf1_size; |
| 211 | int audio_buf_index; /* in bytes */ |
| 212 | int audio_write_buf_size; |
| 213 | int audio_buf_frames_pending; |
| 214 | AVPacket audio_pkt_temp; |
| 215 | AVPacket audio_pkt; |
| 216 | int audio_pkt_temp_serial; |
| 217 | int audio_last_serial; |
| 218 | struct AudioParams audio_src; |
| 219 | #if CONFIG_AVFILTER |
| 220 | struct AudioParams audio_filter_src; |
| 221 | #endif |
| 222 | struct AudioParams audio_tgt; |
| 223 | struct SwrContext *swr_ctx; |
| 224 | int frame_drops_early; |
| 225 | int frame_drops_late; |
| 226 | AVFrame *frame; |
| 227 | int64_t audio_frame_next_pts; |
| 228 | |
| 229 | enum ShowMode { |
| 230 | SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB |
| 231 | } show_mode; |
| 232 | int16_t sample_array[SAMPLE_ARRAY_SIZE]; |
| 233 | int sample_array_index; |
| 234 | int last_i_start; |
| 235 | RDFTContext *rdft; |
| 236 | int rdft_bits; |
| 237 | FFTSample *rdft_data; |
| 238 | int xpos; |
| 239 | double last_vis_time; |
| 240 | |
| 241 | SDL_Thread *subtitle_tid; |
| 242 | int subtitle_stream; |
| 243 | AVStream *subtitle_st; |
| 244 | PacketQueue subtitleq; |
| 245 | SubPicture subpq[SUBPICTURE_QUEUE_SIZE]; |
| 246 | int subpq_size, subpq_rindex, subpq_windex; |
| 247 | SDL_mutex *subpq_mutex; |
| 248 | SDL_cond *subpq_cond; |
| 249 | |
| 250 | double frame_timer; |
| 251 | double frame_last_returned_time; |
| 252 | double frame_last_filter_delay; |
| 253 | int video_stream; |
| 254 | AVStream *video_st; |
| 255 | PacketQueue videoq; |
| 256 | int64_t video_current_pos; // current displayed file pos |
| 257 | double max_frame_duration; // maximum duration of a frame - above this, we consider the jump a timestamp discontinuity |
| 258 | VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE]; |
| 259 | int pictq_size, pictq_rindex, pictq_windex, pictq_rindex_shown; |
| 260 | SDL_mutex *pictq_mutex; |
| 261 | SDL_cond *pictq_cond; |
| 262 | #if !CONFIG_AVFILTER |
| 263 | struct SwsContext *img_convert_ctx; |
| 264 | #endif |
| 265 | SDL_Rect last_display_rect; |
| 266 | |
| 267 | char filename[1024]; |
| 268 | int width, height, xleft, ytop; |
| 269 | int step; |
| 270 | |
| 271 | #if CONFIG_AVFILTER |
| 272 | int vfilter_idx; |
| 273 | AVFilterContext *in_video_filter; // the first filter in the video chain |
| 274 | AVFilterContext *out_video_filter; // the last filter in the video chain |
| 275 | AVFilterContext *in_audio_filter; // the first filter in the audio chain |
| 276 | AVFilterContext *out_audio_filter; // the last filter in the audio chain |
| 277 | AVFilterGraph *agraph; // audio filter graph |
| 278 | #endif |
| 279 | |
| 280 | int last_video_stream, last_audio_stream, last_subtitle_stream; |
| 281 | |
| 282 | SDL_cond *continue_read_thread; |
| 283 | } VideoState; |
| 284 | |
| 285 | /* options specified by the user */ |
| 286 | static AVInputFormat *file_iformat; |
| 287 | static const char *input_filename; |
| 288 | static const char *window_title; |
| 289 | static int fs_screen_width; |
| 290 | static int fs_screen_height; |
| 291 | static int default_width = 640; |
| 292 | static int default_height = 480; |
| 293 | static int screen_width = 0; |
| 294 | static int screen_height = 0; |
| 295 | static int audio_disable; |
| 296 | static int video_disable; |
| 297 | static int subtitle_disable; |
| 298 | static int wanted_stream[AVMEDIA_TYPE_NB] = { |
| 299 | [AVMEDIA_TYPE_AUDIO] = -1, |
| 300 | [AVMEDIA_TYPE_VIDEO] = -1, |
| 301 | [AVMEDIA_TYPE_SUBTITLE] = -1, |
| 302 | }; |
| 303 | static int seek_by_bytes = -1; |
| 304 | static int display_disable; |
| 305 | static int show_status = 1; |
| 306 | static int av_sync_type = AV_SYNC_AUDIO_MASTER; |
| 307 | static int64_t start_time = AV_NOPTS_VALUE; |
| 308 | static int64_t duration = AV_NOPTS_VALUE; |
| 309 | static int workaround_bugs = 1; |
| 310 | static int fast = 0; |
| 311 | static int genpts = 0; |
| 312 | static int lowres = 0; |
| 313 | static int decoder_reorder_pts = -1; |
| 314 | static int autoexit; |
| 315 | static int exit_on_keydown; |
| 316 | static int exit_on_mousedown; |
| 317 | static int loop = 1; |
| 318 | static int framedrop = -1; |
| 319 | static int infinite_buffer = -1; |
| 320 | static enum ShowMode show_mode = SHOW_MODE_NONE; |
| 321 | static const char *audio_codec_name; |
| 322 | static const char *subtitle_codec_name; |
| 323 | static const char *video_codec_name; |
| 324 | double rdftspeed = 0.02; |
| 325 | static int64_t cursor_last_shown; |
| 326 | static int cursor_hidden = 0; |
| 327 | #if CONFIG_AVFILTER |
| 328 | static const char **vfilters_list = NULL; |
| 329 | static int nb_vfilters = 0; |
| 330 | static char *afilters = NULL; |
| 331 | #endif |
| 332 | static int autorotate = 1; |
| 333 | |
| 334 | /* current context */ |
| 335 | static int is_full_screen; |
| 336 | static int64_t audio_callback_time; |
| 337 | |
| 338 | static AVPacket flush_pkt; |
| 339 | |
| 340 | #define FF_ALLOC_EVENT (SDL_USEREVENT) |
| 341 | #define FF_QUIT_EVENT (SDL_USEREVENT + 2) |
| 342 | |
| 343 | static SDL_Surface *screen; |
| 344 | |
| 345 | #if CONFIG_AVFILTER |
| 346 | static int opt_add_vfilter(void *optctx, const char *opt, const char *arg) |
| 347 | { |
| 348 | GROW_ARRAY(vfilters_list, nb_vfilters); |
| 349 | vfilters_list[nb_vfilters - 1] = arg; |
| 350 | return 0; |
| 351 | } |
| 352 | #endif |
| 353 | |
| 354 | static inline |
| 355 | int cmp_audio_fmts(enum AVSampleFormat fmt1, int64_t channel_count1, |
| 356 | enum AVSampleFormat fmt2, int64_t channel_count2) |
| 357 | { |
| 358 | /* If channel count == 1, planar and non-planar formats are the same */ |
| 359 | if (channel_count1 == 1 && channel_count2 == 1) |
| 360 | return av_get_packed_sample_fmt(fmt1) != av_get_packed_sample_fmt(fmt2); |
| 361 | else |
| 362 | return channel_count1 != channel_count2 || fmt1 != fmt2; |
| 363 | } |
| 364 | |
| 365 | static inline |
| 366 | int64_t get_valid_channel_layout(int64_t channel_layout, int channels) |
| 367 | { |
| 368 | if (channel_layout && av_get_channel_layout_nb_channels(channel_layout) == channels) |
| 369 | return channel_layout; |
| 370 | else |
| 371 | return 0; |
| 372 | } |
| 373 | |
| 374 | static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt) |
| 375 | { |
| 376 | MyAVPacketList *pkt1; |
| 377 | |
| 378 | if (q->abort_request) |
| 379 | return -1; |
| 380 | |
| 381 | pkt1 = av_malloc(sizeof(MyAVPacketList)); |
| 382 | if (!pkt1) |
| 383 | return -1; |
| 384 | pkt1->pkt = *pkt; |
| 385 | pkt1->next = NULL; |
| 386 | if (pkt == &flush_pkt) |
| 387 | q->serial++; |
| 388 | pkt1->serial = q->serial; |
| 389 | |
| 390 | if (!q->last_pkt) |
| 391 | q->first_pkt = pkt1; |
| 392 | else |
| 393 | q->last_pkt->next = pkt1; |
| 394 | q->last_pkt = pkt1; |
| 395 | q->nb_packets++; |
| 396 | q->size += pkt1->pkt.size + sizeof(*pkt1); |
| 397 | /* XXX: should duplicate packet data in DV case */ |
| 398 | SDL_CondSignal(q->cond); |
| 399 | return 0; |
| 400 | } |
| 401 | |
| 402 | static int packet_queue_put(PacketQueue *q, AVPacket *pkt) |
| 403 | { |
| 404 | int ret; |
| 405 | |
| 406 | /* duplicate the packet */ |
| 407 | if (pkt != &flush_pkt && av_dup_packet(pkt) < 0) |
| 408 | return -1; |
| 409 | |
| 410 | SDL_LockMutex(q->mutex); |
| 411 | ret = packet_queue_put_private(q, pkt); |
| 412 | SDL_UnlockMutex(q->mutex); |
| 413 | |
| 414 | if (pkt != &flush_pkt && ret < 0) |
| 415 | av_free_packet(pkt); |
| 416 | |
| 417 | return ret; |
| 418 | } |
| 419 | |
| 420 | static int packet_queue_put_nullpacket(PacketQueue *q, int stream_index) |
| 421 | { |
| 422 | AVPacket pkt1, *pkt = &pkt1; |
| 423 | av_init_packet(pkt); |
| 424 | pkt->data = NULL; |
| 425 | pkt->size = 0; |
| 426 | pkt->stream_index = stream_index; |
| 427 | return packet_queue_put(q, pkt); |
| 428 | } |
| 429 | |
| 430 | /* packet queue handling */ |
| 431 | static void packet_queue_init(PacketQueue *q) |
| 432 | { |
| 433 | memset(q, 0, sizeof(PacketQueue)); |
| 434 | q->mutex = SDL_CreateMutex(); |
| 435 | q->cond = SDL_CreateCond(); |
| 436 | q->abort_request = 1; |
| 437 | } |
| 438 | |
| 439 | static void packet_queue_flush(PacketQueue *q) |
| 440 | { |
| 441 | MyAVPacketList *pkt, *pkt1; |
| 442 | |
| 443 | SDL_LockMutex(q->mutex); |
| 444 | for (pkt = q->first_pkt; pkt; pkt = pkt1) { |
| 445 | pkt1 = pkt->next; |
| 446 | av_free_packet(&pkt->pkt); |
| 447 | av_freep(&pkt); |
| 448 | } |
| 449 | q->last_pkt = NULL; |
| 450 | q->first_pkt = NULL; |
| 451 | q->nb_packets = 0; |
| 452 | q->size = 0; |
| 453 | SDL_UnlockMutex(q->mutex); |
| 454 | } |
| 455 | |
| 456 | static void packet_queue_destroy(PacketQueue *q) |
| 457 | { |
| 458 | packet_queue_flush(q); |
| 459 | SDL_DestroyMutex(q->mutex); |
| 460 | SDL_DestroyCond(q->cond); |
| 461 | } |
| 462 | |
| 463 | static void packet_queue_abort(PacketQueue *q) |
| 464 | { |
| 465 | SDL_LockMutex(q->mutex); |
| 466 | |
| 467 | q->abort_request = 1; |
| 468 | |
| 469 | SDL_CondSignal(q->cond); |
| 470 | |
| 471 | SDL_UnlockMutex(q->mutex); |
| 472 | } |
| 473 | |
| 474 | static void packet_queue_start(PacketQueue *q) |
| 475 | { |
| 476 | SDL_LockMutex(q->mutex); |
| 477 | q->abort_request = 0; |
| 478 | packet_queue_put_private(q, &flush_pkt); |
| 479 | SDL_UnlockMutex(q->mutex); |
| 480 | } |
| 481 | |
| 482 | /* return < 0 if aborted, 0 if no packet and > 0 if packet. */ |
| 483 | static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *serial) |
| 484 | { |
| 485 | MyAVPacketList *pkt1; |
| 486 | int ret; |
| 487 | |
| 488 | SDL_LockMutex(q->mutex); |
| 489 | |
| 490 | for (;;) { |
| 491 | if (q->abort_request) { |
| 492 | ret = -1; |
| 493 | break; |
| 494 | } |
| 495 | |
| 496 | pkt1 = q->first_pkt; |
| 497 | if (pkt1) { |
| 498 | q->first_pkt = pkt1->next; |
| 499 | if (!q->first_pkt) |
| 500 | q->last_pkt = NULL; |
| 501 | q->nb_packets--; |
| 502 | q->size -= pkt1->pkt.size + sizeof(*pkt1); |
| 503 | *pkt = pkt1->pkt; |
| 504 | if (serial) |
| 505 | *serial = pkt1->serial; |
| 506 | av_free(pkt1); |
| 507 | ret = 1; |
| 508 | break; |
| 509 | } else if (!block) { |
| 510 | ret = 0; |
| 511 | break; |
| 512 | } else { |
| 513 | SDL_CondWait(q->cond, q->mutex); |
| 514 | } |
| 515 | } |
| 516 | SDL_UnlockMutex(q->mutex); |
| 517 | return ret; |
| 518 | } |
| 519 | |
| 520 | static inline void fill_rectangle(SDL_Surface *screen, |
| 521 | int x, int y, int w, int h, int color, int update) |
| 522 | { |
| 523 | SDL_Rect rect; |
| 524 | rect.x = x; |
| 525 | rect.y = y; |
| 526 | rect.w = w; |
| 527 | rect.h = h; |
| 528 | SDL_FillRect(screen, &rect, color); |
| 529 | if (update && w > 0 && h > 0) |
| 530 | SDL_UpdateRect(screen, x, y, w, h); |
| 531 | } |
| 532 | |
| 533 | /* draw only the border of a rectangle */ |
| 534 | static void fill_border(int xleft, int ytop, int width, int height, int x, int y, int w, int h, int color, int update) |
| 535 | { |
| 536 | int w1, w2, h1, h2; |
| 537 | |
| 538 | /* fill the background */ |
| 539 | w1 = x; |
| 540 | if (w1 < 0) |
| 541 | w1 = 0; |
| 542 | w2 = width - (x + w); |
| 543 | if (w2 < 0) |
| 544 | w2 = 0; |
| 545 | h1 = y; |
| 546 | if (h1 < 0) |
| 547 | h1 = 0; |
| 548 | h2 = height - (y + h); |
| 549 | if (h2 < 0) |
| 550 | h2 = 0; |
| 551 | fill_rectangle(screen, |
| 552 | xleft, ytop, |
| 553 | w1, height, |
| 554 | color, update); |
| 555 | fill_rectangle(screen, |
| 556 | xleft + width - w2, ytop, |
| 557 | w2, height, |
| 558 | color, update); |
| 559 | fill_rectangle(screen, |
| 560 | xleft + w1, ytop, |
| 561 | width - w1 - w2, h1, |
| 562 | color, update); |
| 563 | fill_rectangle(screen, |
| 564 | xleft + w1, ytop + height - h2, |
| 565 | width - w1 - w2, h2, |
| 566 | color, update); |
| 567 | } |
| 568 | |
| 569 | #define ALPHA_BLEND(a, oldp, newp, s)\ |
| 570 | ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s)) |
| 571 | |
| 572 | #define RGBA_IN(r, g, b, a, s)\ |
| 573 | {\ |
| 574 | unsigned int v = ((const uint32_t *)(s))[0];\ |
| 575 | a = (v >> 24) & 0xff;\ |
| 576 | r = (v >> 16) & 0xff;\ |
| 577 | g = (v >> 8) & 0xff;\ |
| 578 | b = v & 0xff;\ |
| 579 | } |
| 580 | |
| 581 | #define YUVA_IN(y, u, v, a, s, pal)\ |
| 582 | {\ |
| 583 | unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\ |
| 584 | a = (val >> 24) & 0xff;\ |
| 585 | y = (val >> 16) & 0xff;\ |
| 586 | u = (val >> 8) & 0xff;\ |
| 587 | v = val & 0xff;\ |
| 588 | } |
| 589 | |
| 590 | #define YUVA_OUT(d, y, u, v, a)\ |
| 591 | {\ |
| 592 | ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\ |
| 593 | } |
| 594 | |
| 595 | |
| 596 | #define BPP 1 |
| 597 | |
| 598 | static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh) |
| 599 | { |
| 600 | int wrap, wrap3, width2, skip2; |
| 601 | int y, u, v, a, u1, v1, a1, w, h; |
| 602 | uint8_t *lum, *cb, *cr; |
| 603 | const uint8_t *p; |
| 604 | const uint32_t *pal; |
| 605 | int dstx, dsty, dstw, dsth; |
| 606 | |
| 607 | dstw = av_clip(rect->w, 0, imgw); |
| 608 | dsth = av_clip(rect->h, 0, imgh); |
| 609 | dstx = av_clip(rect->x, 0, imgw - dstw); |
| 610 | dsty = av_clip(rect->y, 0, imgh - dsth); |
| 611 | lum = dst->data[0] + dsty * dst->linesize[0]; |
| 612 | cb = dst->data[1] + (dsty >> 1) * dst->linesize[1]; |
| 613 | cr = dst->data[2] + (dsty >> 1) * dst->linesize[2]; |
| 614 | |
| 615 | width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1); |
| 616 | skip2 = dstx >> 1; |
| 617 | wrap = dst->linesize[0]; |
| 618 | wrap3 = rect->pict.linesize[0]; |
| 619 | p = rect->pict.data[0]; |
| 620 | pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */ |
| 621 | |
| 622 | if (dsty & 1) { |
| 623 | lum += dstx; |
| 624 | cb += skip2; |
| 625 | cr += skip2; |
| 626 | |
| 627 | if (dstx & 1) { |
| 628 | YUVA_IN(y, u, v, a, p, pal); |
| 629 | lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| 630 | cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); |
| 631 | cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); |
| 632 | cb++; |
| 633 | cr++; |
| 634 | lum++; |
| 635 | p += BPP; |
| 636 | } |
| 637 | for (w = dstw - (dstx & 1); w >= 2; w -= 2) { |
| 638 | YUVA_IN(y, u, v, a, p, pal); |
| 639 | u1 = u; |
| 640 | v1 = v; |
| 641 | a1 = a; |
| 642 | lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| 643 | |
| 644 | YUVA_IN(y, u, v, a, p + BPP, pal); |
| 645 | u1 += u; |
| 646 | v1 += v; |
| 647 | a1 += a; |
| 648 | lum[1] = ALPHA_BLEND(a, lum[1], y, 0); |
| 649 | cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); |
| 650 | cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); |
| 651 | cb++; |
| 652 | cr++; |
| 653 | p += 2 * BPP; |
| 654 | lum += 2; |
| 655 | } |
| 656 | if (w) { |
| 657 | YUVA_IN(y, u, v, a, p, pal); |
| 658 | lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| 659 | cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); |
| 660 | cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); |
| 661 | p++; |
| 662 | lum++; |
| 663 | } |
| 664 | p += wrap3 - dstw * BPP; |
| 665 | lum += wrap - dstw - dstx; |
| 666 | cb += dst->linesize[1] - width2 - skip2; |
| 667 | cr += dst->linesize[2] - width2 - skip2; |
| 668 | } |
| 669 | for (h = dsth - (dsty & 1); h >= 2; h -= 2) { |
| 670 | lum += dstx; |
| 671 | cb += skip2; |
| 672 | cr += skip2; |
| 673 | |
| 674 | if (dstx & 1) { |
| 675 | YUVA_IN(y, u, v, a, p, pal); |
| 676 | u1 = u; |
| 677 | v1 = v; |
| 678 | a1 = a; |
| 679 | lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| 680 | p += wrap3; |
| 681 | lum += wrap; |
| 682 | YUVA_IN(y, u, v, a, p, pal); |
| 683 | u1 += u; |
| 684 | v1 += v; |
| 685 | a1 += a; |
| 686 | lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| 687 | cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); |
| 688 | cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); |
| 689 | cb++; |
| 690 | cr++; |
| 691 | p += -wrap3 + BPP; |
| 692 | lum += -wrap + 1; |
| 693 | } |
| 694 | for (w = dstw - (dstx & 1); w >= 2; w -= 2) { |
| 695 | YUVA_IN(y, u, v, a, p, pal); |
| 696 | u1 = u; |
| 697 | v1 = v; |
| 698 | a1 = a; |
| 699 | lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| 700 | |
| 701 | YUVA_IN(y, u, v, a, p + BPP, pal); |
| 702 | u1 += u; |
| 703 | v1 += v; |
| 704 | a1 += a; |
| 705 | lum[1] = ALPHA_BLEND(a, lum[1], y, 0); |
| 706 | p += wrap3; |
| 707 | lum += wrap; |
| 708 | |
| 709 | YUVA_IN(y, u, v, a, p, pal); |
| 710 | u1 += u; |
| 711 | v1 += v; |
| 712 | a1 += a; |
| 713 | lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| 714 | |
| 715 | YUVA_IN(y, u, v, a, p + BPP, pal); |
| 716 | u1 += u; |
| 717 | v1 += v; |
| 718 | a1 += a; |
| 719 | lum[1] = ALPHA_BLEND(a, lum[1], y, 0); |
| 720 | |
| 721 | cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2); |
| 722 | cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2); |
| 723 | |
| 724 | cb++; |
| 725 | cr++; |
| 726 | p += -wrap3 + 2 * BPP; |
| 727 | lum += -wrap + 2; |
| 728 | } |
| 729 | if (w) { |
| 730 | YUVA_IN(y, u, v, a, p, pal); |
| 731 | u1 = u; |
| 732 | v1 = v; |
| 733 | a1 = a; |
| 734 | lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| 735 | p += wrap3; |
| 736 | lum += wrap; |
| 737 | YUVA_IN(y, u, v, a, p, pal); |
| 738 | u1 += u; |
| 739 | v1 += v; |
| 740 | a1 += a; |
| 741 | lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| 742 | cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); |
| 743 | cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); |
| 744 | cb++; |
| 745 | cr++; |
| 746 | p += -wrap3 + BPP; |
| 747 | lum += -wrap + 1; |
| 748 | } |
| 749 | p += wrap3 + (wrap3 - dstw * BPP); |
| 750 | lum += wrap + (wrap - dstw - dstx); |
| 751 | cb += dst->linesize[1] - width2 - skip2; |
| 752 | cr += dst->linesize[2] - width2 - skip2; |
| 753 | } |
| 754 | /* handle odd height */ |
| 755 | if (h) { |
| 756 | lum += dstx; |
| 757 | cb += skip2; |
| 758 | cr += skip2; |
| 759 | |
| 760 | if (dstx & 1) { |
| 761 | YUVA_IN(y, u, v, a, p, pal); |
| 762 | lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| 763 | cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); |
| 764 | cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); |
| 765 | cb++; |
| 766 | cr++; |
| 767 | lum++; |
| 768 | p += BPP; |
| 769 | } |
| 770 | for (w = dstw - (dstx & 1); w >= 2; w -= 2) { |
| 771 | YUVA_IN(y, u, v, a, p, pal); |
| 772 | u1 = u; |
| 773 | v1 = v; |
| 774 | a1 = a; |
| 775 | lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| 776 | |
| 777 | YUVA_IN(y, u, v, a, p + BPP, pal); |
| 778 | u1 += u; |
| 779 | v1 += v; |
| 780 | a1 += a; |
| 781 | lum[1] = ALPHA_BLEND(a, lum[1], y, 0); |
| 782 | cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1); |
| 783 | cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1); |
| 784 | cb++; |
| 785 | cr++; |
| 786 | p += 2 * BPP; |
| 787 | lum += 2; |
| 788 | } |
| 789 | if (w) { |
| 790 | YUVA_IN(y, u, v, a, p, pal); |
| 791 | lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| 792 | cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); |
| 793 | cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); |
| 794 | } |
| 795 | } |
| 796 | } |
| 797 | |
| 798 | static void free_picture(VideoPicture *vp) |
| 799 | { |
| 800 | if (vp->bmp) { |
| 801 | SDL_FreeYUVOverlay(vp->bmp); |
| 802 | vp->bmp = NULL; |
| 803 | } |
| 804 | } |
| 805 | |
| 806 | static void free_subpicture(SubPicture *sp) |
| 807 | { |
| 808 | avsubtitle_free(&sp->sub); |
| 809 | } |
| 810 | |
| 811 | static void calculate_display_rect(SDL_Rect *rect, |
| 812 | int scr_xleft, int scr_ytop, int scr_width, int scr_height, |
| 813 | int pic_width, int pic_height, AVRational pic_sar) |
| 814 | { |
| 815 | float aspect_ratio; |
| 816 | int width, height, x, y; |
| 817 | |
| 818 | if (pic_sar.num == 0) |
| 819 | aspect_ratio = 0; |
| 820 | else |
| 821 | aspect_ratio = av_q2d(pic_sar); |
| 822 | |
| 823 | if (aspect_ratio <= 0.0) |
| 824 | aspect_ratio = 1.0; |
| 825 | aspect_ratio *= (float)pic_width / (float)pic_height; |
| 826 | |
| 827 | /* XXX: we suppose the screen has a 1.0 pixel ratio */ |
| 828 | height = scr_height; |
| 829 | width = ((int)rint(height * aspect_ratio)) & ~1; |
| 830 | if (width > scr_width) { |
| 831 | width = scr_width; |
| 832 | height = ((int)rint(width / aspect_ratio)) & ~1; |
| 833 | } |
| 834 | x = (scr_width - width) / 2; |
| 835 | y = (scr_height - height) / 2; |
| 836 | rect->x = scr_xleft + x; |
| 837 | rect->y = scr_ytop + y; |
| 838 | rect->w = FFMAX(width, 1); |
| 839 | rect->h = FFMAX(height, 1); |
| 840 | } |
| 841 | |
| 842 | static void video_image_display(VideoState *is) |
| 843 | { |
| 844 | VideoPicture *vp; |
| 845 | SubPicture *sp; |
| 846 | AVPicture pict; |
| 847 | SDL_Rect rect; |
| 848 | int i; |
| 849 | |
| 850 | vp = &is->pictq[(is->pictq_rindex + is->pictq_rindex_shown) % VIDEO_PICTURE_QUEUE_SIZE]; |
| 851 | if (vp->bmp) { |
| 852 | if (is->subtitle_st) { |
| 853 | if (is->subpq_size > 0) { |
| 854 | sp = &is->subpq[is->subpq_rindex]; |
| 855 | |
| 856 | if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) { |
| 857 | SDL_LockYUVOverlay (vp->bmp); |
| 858 | |
| 859 | pict.data[0] = vp->bmp->pixels[0]; |
| 860 | pict.data[1] = vp->bmp->pixels[2]; |
| 861 | pict.data[2] = vp->bmp->pixels[1]; |
| 862 | |
| 863 | pict.linesize[0] = vp->bmp->pitches[0]; |
| 864 | pict.linesize[1] = vp->bmp->pitches[2]; |
| 865 | pict.linesize[2] = vp->bmp->pitches[1]; |
| 866 | |
| 867 | for (i = 0; i < sp->sub.num_rects; i++) |
| 868 | blend_subrect(&pict, sp->sub.rects[i], |
| 869 | vp->bmp->w, vp->bmp->h); |
| 870 | |
| 871 | SDL_UnlockYUVOverlay (vp->bmp); |
| 872 | } |
| 873 | } |
| 874 | } |
| 875 | |
| 876 | calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp->width, vp->height, vp->sar); |
| 877 | |
| 878 | SDL_DisplayYUVOverlay(vp->bmp, &rect); |
| 879 | |
| 880 | if (rect.x != is->last_display_rect.x || rect.y != is->last_display_rect.y || rect.w != is->last_display_rect.w || rect.h != is->last_display_rect.h || is->force_refresh) { |
| 881 | int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); |
| 882 | fill_border(is->xleft, is->ytop, is->width, is->height, rect.x, rect.y, rect.w, rect.h, bgcolor, 1); |
| 883 | is->last_display_rect = rect; |
| 884 | } |
| 885 | } |
| 886 | } |
| 887 | |
| 888 | static inline int compute_mod(int a, int b) |
| 889 | { |
| 890 | return a < 0 ? a%b + b : a%b; |
| 891 | } |
| 892 | |
| 893 | static void video_audio_display(VideoState *s) |
| 894 | { |
| 895 | int i, i_start, x, y1, y, ys, delay, n, nb_display_channels; |
| 896 | int ch, channels, h, h2, bgcolor, fgcolor; |
| 897 | int64_t time_diff; |
| 898 | int rdft_bits, nb_freq; |
| 899 | |
| 900 | for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++) |
| 901 | ; |
| 902 | nb_freq = 1 << (rdft_bits - 1); |
| 903 | |
| 904 | /* compute display index : center on currently output samples */ |
| 905 | channels = s->audio_tgt.channels; |
| 906 | nb_display_channels = channels; |
| 907 | if (!s->paused) { |
| 908 | int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq); |
| 909 | n = 2 * channels; |
| 910 | delay = s->audio_write_buf_size; |
| 911 | delay /= n; |
| 912 | |
| 913 | /* to be more precise, we take into account the time spent since |
| 914 | the last buffer computation */ |
| 915 | if (audio_callback_time) { |
| 916 | time_diff = av_gettime_relative() - audio_callback_time; |
| 917 | delay -= (time_diff * s->audio_tgt.freq) / 1000000; |
| 918 | } |
| 919 | |
| 920 | delay += 2 * data_used; |
| 921 | if (delay < data_used) |
| 922 | delay = data_used; |
| 923 | |
| 924 | i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE); |
| 925 | if (s->show_mode == SHOW_MODE_WAVES) { |
| 926 | h = INT_MIN; |
| 927 | for (i = 0; i < 1000; i += channels) { |
| 928 | int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE; |
| 929 | int a = s->sample_array[idx]; |
| 930 | int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE]; |
| 931 | int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE]; |
| 932 | int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE]; |
| 933 | int score = a - d; |
| 934 | if (h < score && (b ^ c) < 0) { |
| 935 | h = score; |
| 936 | i_start = idx; |
| 937 | } |
| 938 | } |
| 939 | } |
| 940 | |
| 941 | s->last_i_start = i_start; |
| 942 | } else { |
| 943 | i_start = s->last_i_start; |
| 944 | } |
| 945 | |
| 946 | bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); |
| 947 | if (s->show_mode == SHOW_MODE_WAVES) { |
| 948 | fill_rectangle(screen, |
| 949 | s->xleft, s->ytop, s->width, s->height, |
| 950 | bgcolor, 0); |
| 951 | |
| 952 | fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff); |
| 953 | |
| 954 | /* total height for one channel */ |
| 955 | h = s->height / nb_display_channels; |
| 956 | /* graph height / 2 */ |
| 957 | h2 = (h * 9) / 20; |
| 958 | for (ch = 0; ch < nb_display_channels; ch++) { |
| 959 | i = i_start + ch; |
| 960 | y1 = s->ytop + ch * h + (h / 2); /* position of center line */ |
| 961 | for (x = 0; x < s->width; x++) { |
| 962 | y = (s->sample_array[i] * h2) >> 15; |
| 963 | if (y < 0) { |
| 964 | y = -y; |
| 965 | ys = y1 - y; |
| 966 | } else { |
| 967 | ys = y1; |
| 968 | } |
| 969 | fill_rectangle(screen, |
| 970 | s->xleft + x, ys, 1, y, |
| 971 | fgcolor, 0); |
| 972 | i += channels; |
| 973 | if (i >= SAMPLE_ARRAY_SIZE) |
| 974 | i -= SAMPLE_ARRAY_SIZE; |
| 975 | } |
| 976 | } |
| 977 | |
| 978 | fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff); |
| 979 | |
| 980 | for (ch = 1; ch < nb_display_channels; ch++) { |
| 981 | y = s->ytop + ch * h; |
| 982 | fill_rectangle(screen, |
| 983 | s->xleft, y, s->width, 1, |
| 984 | fgcolor, 0); |
| 985 | } |
| 986 | SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height); |
| 987 | } else { |
| 988 | nb_display_channels= FFMIN(nb_display_channels, 2); |
| 989 | if (rdft_bits != s->rdft_bits) { |
| 990 | av_rdft_end(s->rdft); |
| 991 | av_free(s->rdft_data); |
| 992 | s->rdft = av_rdft_init(rdft_bits, DFT_R2C); |
| 993 | s->rdft_bits = rdft_bits; |
| 994 | s->rdft_data = av_malloc_array(nb_freq, 4 *sizeof(*s->rdft_data)); |
| 995 | } |
| 996 | { |
| 997 | FFTSample *data[2]; |
| 998 | for (ch = 0; ch < nb_display_channels; ch++) { |
| 999 | data[ch] = s->rdft_data + 2 * nb_freq * ch; |
| 1000 | i = i_start + ch; |
| 1001 | for (x = 0; x < 2 * nb_freq; x++) { |
| 1002 | double w = (x-nb_freq) * (1.0 / nb_freq); |
| 1003 | data[ch][x] = s->sample_array[i] * (1.0 - w * w); |
| 1004 | i += channels; |
| 1005 | if (i >= SAMPLE_ARRAY_SIZE) |
| 1006 | i -= SAMPLE_ARRAY_SIZE; |
| 1007 | } |
| 1008 | av_rdft_calc(s->rdft, data[ch]); |
| 1009 | } |
| 1010 | /* Least efficient way to do this, we should of course |
| 1011 | * directly access it but it is more than fast enough. */ |
| 1012 | for (y = 0; y < s->height; y++) { |
| 1013 | double w = 1 / sqrt(nb_freq); |
| 1014 | int a = sqrt(w * sqrt(data[0][2 * y + 0] * data[0][2 * y + 0] + data[0][2 * y + 1] * data[0][2 * y + 1])); |
| 1015 | int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0] |
| 1016 | + data[1][2 * y + 1] * data[1][2 * y + 1])) : a; |
| 1017 | a = FFMIN(a, 255); |
| 1018 | b = FFMIN(b, 255); |
| 1019 | fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2); |
| 1020 | |
| 1021 | fill_rectangle(screen, |
| 1022 | s->xpos, s->height-y, 1, 1, |
| 1023 | fgcolor, 0); |
| 1024 | } |
| 1025 | } |
| 1026 | SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height); |
| 1027 | if (!s->paused) |
| 1028 | s->xpos++; |
| 1029 | if (s->xpos >= s->width) |
| 1030 | s->xpos= s->xleft; |
| 1031 | } |
| 1032 | } |
| 1033 | |
| 1034 | static void stream_close(VideoState *is) |
| 1035 | { |
| 1036 | int i; |
| 1037 | /* XXX: use a special url_shutdown call to abort parse cleanly */ |
| 1038 | is->abort_request = 1; |
| 1039 | SDL_WaitThread(is->read_tid, NULL); |
| 1040 | packet_queue_destroy(&is->videoq); |
| 1041 | packet_queue_destroy(&is->audioq); |
| 1042 | packet_queue_destroy(&is->subtitleq); |
| 1043 | |
| 1044 | /* free all pictures */ |
| 1045 | for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) |
| 1046 | free_picture(&is->pictq[i]); |
| 1047 | for (i = 0; i < SUBPICTURE_QUEUE_SIZE; i++) |
| 1048 | free_subpicture(&is->subpq[i]); |
| 1049 | SDL_DestroyMutex(is->pictq_mutex); |
| 1050 | SDL_DestroyCond(is->pictq_cond); |
| 1051 | SDL_DestroyMutex(is->subpq_mutex); |
| 1052 | SDL_DestroyCond(is->subpq_cond); |
| 1053 | SDL_DestroyCond(is->continue_read_thread); |
| 1054 | #if !CONFIG_AVFILTER |
| 1055 | sws_freeContext(is->img_convert_ctx); |
| 1056 | #endif |
| 1057 | av_free(is); |
| 1058 | } |
| 1059 | |
| 1060 | static void do_exit(VideoState *is) |
| 1061 | { |
| 1062 | if (is) { |
| 1063 | stream_close(is); |
| 1064 | } |
| 1065 | av_lockmgr_register(NULL); |
| 1066 | uninit_opts(); |
| 1067 | #if CONFIG_AVFILTER |
| 1068 | av_freep(&vfilters_list); |
| 1069 | #endif |
| 1070 | avformat_network_deinit(); |
| 1071 | if (show_status) |
| 1072 | printf("\n"); |
| 1073 | SDL_Quit(); |
| 1074 | av_log(NULL, AV_LOG_QUIET, "%s", ""); |
| 1075 | exit(0); |
| 1076 | } |
| 1077 | |
| 1078 | static void sigterm_handler(int sig) |
| 1079 | { |
| 1080 | exit(123); |
| 1081 | } |
| 1082 | |
| 1083 | static void set_default_window_size(int width, int height, AVRational sar) |
| 1084 | { |
| 1085 | SDL_Rect rect; |
| 1086 | calculate_display_rect(&rect, 0, 0, INT_MAX, height, width, height, sar); |
| 1087 | default_width = rect.w; |
| 1088 | default_height = rect.h; |
| 1089 | } |
| 1090 | |
| 1091 | static int video_open(VideoState *is, int force_set_video_mode, VideoPicture *vp) |
| 1092 | { |
| 1093 | int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL; |
| 1094 | int w,h; |
| 1095 | |
| 1096 | if (is_full_screen) flags |= SDL_FULLSCREEN; |
| 1097 | else flags |= SDL_RESIZABLE; |
| 1098 | |
| 1099 | if (vp && vp->width) |
| 1100 | set_default_window_size(vp->width, vp->height, vp->sar); |
| 1101 | |
| 1102 | if (is_full_screen && fs_screen_width) { |
| 1103 | w = fs_screen_width; |
| 1104 | h = fs_screen_height; |
| 1105 | } else if (!is_full_screen && screen_width) { |
| 1106 | w = screen_width; |
| 1107 | h = screen_height; |
| 1108 | } else { |
| 1109 | w = default_width; |
| 1110 | h = default_height; |
| 1111 | } |
| 1112 | w = FFMIN(16383, w); |
| 1113 | if (screen && is->width == screen->w && screen->w == w |
| 1114 | && is->height== screen->h && screen->h == h && !force_set_video_mode) |
| 1115 | return 0; |
| 1116 | screen = SDL_SetVideoMode(w, h, 0, flags); |
| 1117 | if (!screen) { |
| 1118 | av_log(NULL, AV_LOG_FATAL, "SDL: could not set video mode - exiting\n"); |
| 1119 | do_exit(is); |
| 1120 | } |
| 1121 | if (!window_title) |
| 1122 | window_title = input_filename; |
| 1123 | SDL_WM_SetCaption(window_title, window_title); |
| 1124 | |
| 1125 | is->width = screen->w; |
| 1126 | is->height = screen->h; |
| 1127 | |
| 1128 | return 0; |
| 1129 | } |
| 1130 | |
| 1131 | /* display the current picture, if any */ |
| 1132 | static void video_display(VideoState *is) |
| 1133 | { |
| 1134 | if (!screen) |
| 1135 | video_open(is, 0, NULL); |
| 1136 | if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO) |
| 1137 | video_audio_display(is); |
| 1138 | else if (is->video_st) |
| 1139 | video_image_display(is); |
| 1140 | } |
| 1141 | |
| 1142 | static double get_clock(Clock *c) |
| 1143 | { |
| 1144 | if (*c->queue_serial != c->serial) |
| 1145 | return NAN; |
| 1146 | if (c->paused) { |
| 1147 | return c->pts; |
| 1148 | } else { |
| 1149 | double time = av_gettime_relative() / 1000000.0; |
| 1150 | return c->pts_drift + time - (time - c->last_updated) * (1.0 - c->speed); |
| 1151 | } |
| 1152 | } |
| 1153 | |
| 1154 | static void set_clock_at(Clock *c, double pts, int serial, double time) |
| 1155 | { |
| 1156 | c->pts = pts; |
| 1157 | c->last_updated = time; |
| 1158 | c->pts_drift = c->pts - time; |
| 1159 | c->serial = serial; |
| 1160 | } |
| 1161 | |
| 1162 | static void set_clock(Clock *c, double pts, int serial) |
| 1163 | { |
| 1164 | double time = av_gettime_relative() / 1000000.0; |
| 1165 | set_clock_at(c, pts, serial, time); |
| 1166 | } |
| 1167 | |
| 1168 | static void set_clock_speed(Clock *c, double speed) |
| 1169 | { |
| 1170 | set_clock(c, get_clock(c), c->serial); |
| 1171 | c->speed = speed; |
| 1172 | } |
| 1173 | |
| 1174 | static void init_clock(Clock *c, int *queue_serial) |
| 1175 | { |
| 1176 | c->speed = 1.0; |
| 1177 | c->paused = 0; |
| 1178 | c->queue_serial = queue_serial; |
| 1179 | set_clock(c, NAN, -1); |
| 1180 | } |
| 1181 | |
| 1182 | static void sync_clock_to_slave(Clock *c, Clock *slave) |
| 1183 | { |
| 1184 | double clock = get_clock(c); |
| 1185 | double slave_clock = get_clock(slave); |
| 1186 | if (!isnan(slave_clock) && (isnan(clock) || fabs(clock - slave_clock) > AV_NOSYNC_THRESHOLD)) |
| 1187 | set_clock(c, slave_clock, slave->serial); |
| 1188 | } |
| 1189 | |
| 1190 | static int get_master_sync_type(VideoState *is) { |
| 1191 | if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) { |
| 1192 | if (is->video_st) |
| 1193 | return AV_SYNC_VIDEO_MASTER; |
| 1194 | else |
| 1195 | return AV_SYNC_AUDIO_MASTER; |
| 1196 | } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) { |
| 1197 | if (is->audio_st) |
| 1198 | return AV_SYNC_AUDIO_MASTER; |
| 1199 | else |
| 1200 | return AV_SYNC_EXTERNAL_CLOCK; |
| 1201 | } else { |
| 1202 | return AV_SYNC_EXTERNAL_CLOCK; |
| 1203 | } |
| 1204 | } |
| 1205 | |
| 1206 | /* get the current master clock value */ |
| 1207 | static double get_master_clock(VideoState *is) |
| 1208 | { |
| 1209 | double val; |
| 1210 | |
| 1211 | switch (get_master_sync_type(is)) { |
| 1212 | case AV_SYNC_VIDEO_MASTER: |
| 1213 | val = get_clock(&is->vidclk); |
| 1214 | break; |
| 1215 | case AV_SYNC_AUDIO_MASTER: |
| 1216 | val = get_clock(&is->audclk); |
| 1217 | break; |
| 1218 | default: |
| 1219 | val = get_clock(&is->extclk); |
| 1220 | break; |
| 1221 | } |
| 1222 | return val; |
| 1223 | } |
| 1224 | |
| 1225 | static void check_external_clock_speed(VideoState *is) { |
| 1226 | if (is->video_stream >= 0 && is->videoq.nb_packets <= MIN_FRAMES / 2 || |
| 1227 | is->audio_stream >= 0 && is->audioq.nb_packets <= MIN_FRAMES / 2) { |
| 1228 | set_clock_speed(&is->extclk, FFMAX(EXTERNAL_CLOCK_SPEED_MIN, is->extclk.speed - EXTERNAL_CLOCK_SPEED_STEP)); |
| 1229 | } else if ((is->video_stream < 0 || is->videoq.nb_packets > MIN_FRAMES * 2) && |
| 1230 | (is->audio_stream < 0 || is->audioq.nb_packets > MIN_FRAMES * 2)) { |
| 1231 | set_clock_speed(&is->extclk, FFMIN(EXTERNAL_CLOCK_SPEED_MAX, is->extclk.speed + EXTERNAL_CLOCK_SPEED_STEP)); |
| 1232 | } else { |
| 1233 | double speed = is->extclk.speed; |
| 1234 | if (speed != 1.0) |
| 1235 | set_clock_speed(&is->extclk, speed + EXTERNAL_CLOCK_SPEED_STEP * (1.0 - speed) / fabs(1.0 - speed)); |
| 1236 | } |
| 1237 | } |
| 1238 | |
| 1239 | /* seek in the stream */ |
| 1240 | static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes) |
| 1241 | { |
| 1242 | if (!is->seek_req) { |
| 1243 | is->seek_pos = pos; |
| 1244 | is->seek_rel = rel; |
| 1245 | is->seek_flags &= ~AVSEEK_FLAG_BYTE; |
| 1246 | if (seek_by_bytes) |
| 1247 | is->seek_flags |= AVSEEK_FLAG_BYTE; |
| 1248 | is->seek_req = 1; |
| 1249 | SDL_CondSignal(is->continue_read_thread); |
| 1250 | } |
| 1251 | } |
| 1252 | |
| 1253 | /* pause or resume the video */ |
| 1254 | static void stream_toggle_pause(VideoState *is) |
| 1255 | { |
| 1256 | if (is->paused) { |
| 1257 | is->frame_timer += av_gettime_relative() / 1000000.0 + is->vidclk.pts_drift - is->vidclk.pts; |
| 1258 | if (is->read_pause_return != AVERROR(ENOSYS)) { |
| 1259 | is->vidclk.paused = 0; |
| 1260 | } |
| 1261 | set_clock(&is->vidclk, get_clock(&is->vidclk), is->vidclk.serial); |
| 1262 | } |
| 1263 | set_clock(&is->extclk, get_clock(&is->extclk), is->extclk.serial); |
| 1264 | is->paused = is->audclk.paused = is->vidclk.paused = is->extclk.paused = !is->paused; |
| 1265 | } |
| 1266 | |
| 1267 | static void toggle_pause(VideoState *is) |
| 1268 | { |
| 1269 | stream_toggle_pause(is); |
| 1270 | is->step = 0; |
| 1271 | } |
| 1272 | |
| 1273 | static void step_to_next_frame(VideoState *is) |
| 1274 | { |
| 1275 | /* if the stream is paused unpause it, then step */ |
| 1276 | if (is->paused) |
| 1277 | stream_toggle_pause(is); |
| 1278 | is->step = 1; |
| 1279 | } |
| 1280 | |
| 1281 | static double compute_target_delay(double delay, VideoState *is) |
| 1282 | { |
| 1283 | double sync_threshold, diff; |
| 1284 | |
| 1285 | /* update delay to follow master synchronisation source */ |
| 1286 | if (get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER) { |
| 1287 | /* if video is slave, we try to correct big delays by |
| 1288 | duplicating or deleting a frame */ |
| 1289 | diff = get_clock(&is->vidclk) - get_master_clock(is); |
| 1290 | |
| 1291 | /* skip or repeat frame. We take into account the |
| 1292 | delay to compute the threshold. I still don't know |
| 1293 | if it is the best guess */ |
| 1294 | sync_threshold = FFMAX(AV_SYNC_THRESHOLD_MIN, FFMIN(AV_SYNC_THRESHOLD_MAX, delay)); |
| 1295 | if (!isnan(diff) && fabs(diff) < is->max_frame_duration) { |
| 1296 | if (diff <= -sync_threshold) |
| 1297 | delay = FFMAX(0, delay + diff); |
| 1298 | else if (diff >= sync_threshold && delay > AV_SYNC_FRAMEDUP_THRESHOLD) |
| 1299 | delay = delay + diff; |
| 1300 | else if (diff >= sync_threshold) |
| 1301 | delay = 2 * delay; |
| 1302 | } |
| 1303 | } |
| 1304 | |
| 1305 | av_dlog(NULL, "video: delay=%0.3f A-V=%f\n", |
| 1306 | delay, -diff); |
| 1307 | |
| 1308 | return delay; |
| 1309 | } |
| 1310 | |
| 1311 | static double vp_duration(VideoState *is, VideoPicture *vp, VideoPicture *nextvp) { |
| 1312 | if (vp->serial == nextvp->serial) { |
| 1313 | double duration = nextvp->pts - vp->pts; |
| 1314 | if (isnan(duration) || duration <= 0 || duration > is->max_frame_duration) |
| 1315 | return vp->duration; |
| 1316 | else |
| 1317 | return duration; |
| 1318 | } else { |
| 1319 | return 0.0; |
| 1320 | } |
| 1321 | } |
| 1322 | |
| 1323 | /* return the number of undisplayed pictures in the queue */ |
| 1324 | static int pictq_nb_remaining(VideoState *is) { |
| 1325 | return is->pictq_size - is->pictq_rindex_shown; |
| 1326 | } |
| 1327 | |
| 1328 | /* jump back to the previous picture if available by resetting rindex_shown */ |
| 1329 | static int pictq_prev_picture(VideoState *is) { |
| 1330 | int ret = is->pictq_rindex_shown; |
| 1331 | is->pictq_rindex_shown = 0; |
| 1332 | return ret; |
| 1333 | } |
| 1334 | |
| 1335 | static void pictq_next_picture(VideoState *is) { |
| 1336 | if (!is->pictq_rindex_shown) { |
| 1337 | is->pictq_rindex_shown = 1; |
| 1338 | return; |
| 1339 | } |
| 1340 | /* update queue size and signal for next picture */ |
| 1341 | if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE) |
| 1342 | is->pictq_rindex = 0; |
| 1343 | |
| 1344 | SDL_LockMutex(is->pictq_mutex); |
| 1345 | is->pictq_size--; |
| 1346 | SDL_CondSignal(is->pictq_cond); |
| 1347 | SDL_UnlockMutex(is->pictq_mutex); |
| 1348 | } |
| 1349 | |
| 1350 | static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial) { |
| 1351 | /* update current video pts */ |
| 1352 | set_clock(&is->vidclk, pts, serial); |
| 1353 | sync_clock_to_slave(&is->extclk, &is->vidclk); |
| 1354 | is->video_current_pos = pos; |
| 1355 | } |
| 1356 | |
| 1357 | /* called to display each frame */ |
| 1358 | static void video_refresh(void *opaque, double *remaining_time) |
| 1359 | { |
| 1360 | VideoState *is = opaque; |
| 1361 | double time; |
| 1362 | |
| 1363 | SubPicture *sp, *sp2; |
| 1364 | |
| 1365 | if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime) |
| 1366 | check_external_clock_speed(is); |
| 1367 | |
| 1368 | if (!display_disable && is->show_mode != SHOW_MODE_VIDEO && is->audio_st) { |
| 1369 | time = av_gettime_relative() / 1000000.0; |
| 1370 | if (is->force_refresh || is->last_vis_time + rdftspeed < time) { |
| 1371 | video_display(is); |
| 1372 | is->last_vis_time = time; |
| 1373 | } |
| 1374 | *remaining_time = FFMIN(*remaining_time, is->last_vis_time + rdftspeed - time); |
| 1375 | } |
| 1376 | |
| 1377 | if (is->video_st) { |
| 1378 | int redisplay = 0; |
| 1379 | if (is->force_refresh) |
| 1380 | redisplay = pictq_prev_picture(is); |
| 1381 | retry: |
| 1382 | if (pictq_nb_remaining(is) == 0) { |
| 1383 | // nothing to do, no picture to display in the queue |
| 1384 | } else { |
| 1385 | double last_duration, duration, delay; |
| 1386 | VideoPicture *vp, *lastvp; |
| 1387 | |
| 1388 | /* dequeue the picture */ |
| 1389 | lastvp = &is->pictq[is->pictq_rindex]; |
| 1390 | vp = &is->pictq[(is->pictq_rindex + is->pictq_rindex_shown) % VIDEO_PICTURE_QUEUE_SIZE]; |
| 1391 | |
| 1392 | if (vp->serial != is->videoq.serial) { |
| 1393 | pictq_next_picture(is); |
| 1394 | is->video_current_pos = -1; |
| 1395 | redisplay = 0; |
| 1396 | goto retry; |
| 1397 | } |
| 1398 | |
| 1399 | if (lastvp->serial != vp->serial && !redisplay) |
| 1400 | is->frame_timer = av_gettime_relative() / 1000000.0; |
| 1401 | |
| 1402 | if (is->paused) |
| 1403 | goto display; |
| 1404 | |
| 1405 | /* compute nominal last_duration */ |
| 1406 | last_duration = vp_duration(is, lastvp, vp); |
| 1407 | if (redisplay) |
| 1408 | delay = 0.0; |
| 1409 | else |
| 1410 | delay = compute_target_delay(last_duration, is); |
| 1411 | |
| 1412 | time= av_gettime_relative()/1000000.0; |
| 1413 | if (time < is->frame_timer + delay && !redisplay) { |
| 1414 | *remaining_time = FFMIN(is->frame_timer + delay - time, *remaining_time); |
| 1415 | return; |
| 1416 | } |
| 1417 | |
| 1418 | is->frame_timer += delay; |
| 1419 | if (delay > 0 && time - is->frame_timer > AV_SYNC_THRESHOLD_MAX) |
| 1420 | is->frame_timer = time; |
| 1421 | |
| 1422 | SDL_LockMutex(is->pictq_mutex); |
| 1423 | if (!redisplay && !isnan(vp->pts)) |
| 1424 | update_video_pts(is, vp->pts, vp->pos, vp->serial); |
| 1425 | SDL_UnlockMutex(is->pictq_mutex); |
| 1426 | |
| 1427 | if (pictq_nb_remaining(is) > 1) { |
| 1428 | VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + is->pictq_rindex_shown + 1) % VIDEO_PICTURE_QUEUE_SIZE]; |
| 1429 | duration = vp_duration(is, vp, nextvp); |
| 1430 | if(!is->step && (redisplay || framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){ |
| 1431 | if (!redisplay) |
| 1432 | is->frame_drops_late++; |
| 1433 | pictq_next_picture(is); |
| 1434 | redisplay = 0; |
| 1435 | goto retry; |
| 1436 | } |
| 1437 | } |
| 1438 | |
| 1439 | if (is->subtitle_st) { |
| 1440 | while (is->subpq_size > 0) { |
| 1441 | sp = &is->subpq[is->subpq_rindex]; |
| 1442 | |
| 1443 | if (is->subpq_size > 1) |
| 1444 | sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE]; |
| 1445 | else |
| 1446 | sp2 = NULL; |
| 1447 | |
| 1448 | if (sp->serial != is->subtitleq.serial |
| 1449 | || (is->vidclk.pts > (sp->pts + ((float) sp->sub.end_display_time / 1000))) |
| 1450 | || (sp2 && is->vidclk.pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000)))) |
| 1451 | { |
| 1452 | free_subpicture(sp); |
| 1453 | |
| 1454 | /* update queue size and signal for next picture */ |
| 1455 | if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE) |
| 1456 | is->subpq_rindex = 0; |
| 1457 | |
| 1458 | SDL_LockMutex(is->subpq_mutex); |
| 1459 | is->subpq_size--; |
| 1460 | SDL_CondSignal(is->subpq_cond); |
| 1461 | SDL_UnlockMutex(is->subpq_mutex); |
| 1462 | } else { |
| 1463 | break; |
| 1464 | } |
| 1465 | } |
| 1466 | } |
| 1467 | |
| 1468 | display: |
| 1469 | /* display picture */ |
| 1470 | if (!display_disable && is->show_mode == SHOW_MODE_VIDEO) |
| 1471 | video_display(is); |
| 1472 | |
| 1473 | pictq_next_picture(is); |
| 1474 | |
| 1475 | if (is->step && !is->paused) |
| 1476 | stream_toggle_pause(is); |
| 1477 | } |
| 1478 | } |
| 1479 | is->force_refresh = 0; |
| 1480 | if (show_status) { |
| 1481 | static int64_t last_time; |
| 1482 | int64_t cur_time; |
| 1483 | int aqsize, vqsize, sqsize; |
| 1484 | double av_diff; |
| 1485 | |
| 1486 | cur_time = av_gettime_relative(); |
| 1487 | if (!last_time || (cur_time - last_time) >= 30000) { |
| 1488 | aqsize = 0; |
| 1489 | vqsize = 0; |
| 1490 | sqsize = 0; |
| 1491 | if (is->audio_st) |
| 1492 | aqsize = is->audioq.size; |
| 1493 | if (is->video_st) |
| 1494 | vqsize = is->videoq.size; |
| 1495 | if (is->subtitle_st) |
| 1496 | sqsize = is->subtitleq.size; |
| 1497 | av_diff = 0; |
| 1498 | if (is->audio_st && is->video_st) |
| 1499 | av_diff = get_clock(&is->audclk) - get_clock(&is->vidclk); |
| 1500 | else if (is->video_st) |
| 1501 | av_diff = get_master_clock(is) - get_clock(&is->vidclk); |
| 1502 | else if (is->audio_st) |
| 1503 | av_diff = get_master_clock(is) - get_clock(&is->audclk); |
| 1504 | av_log(NULL, AV_LOG_INFO, |
| 1505 | "%7.2f %s:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r", |
| 1506 | get_master_clock(is), |
| 1507 | (is->audio_st && is->video_st) ? "A-V" : (is->video_st ? "M-V" : (is->audio_st ? "M-A" : " ")), |
| 1508 | av_diff, |
| 1509 | is->frame_drops_early + is->frame_drops_late, |
| 1510 | aqsize / 1024, |
| 1511 | vqsize / 1024, |
| 1512 | sqsize, |
| 1513 | is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0, |
| 1514 | is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0); |
| 1515 | fflush(stdout); |
| 1516 | last_time = cur_time; |
| 1517 | } |
| 1518 | } |
| 1519 | } |
| 1520 | |
| 1521 | /* allocate a picture (needs to do that in main thread to avoid |
| 1522 | potential locking problems */ |
| 1523 | static void alloc_picture(VideoState *is) |
| 1524 | { |
| 1525 | VideoPicture *vp; |
| 1526 | int64_t bufferdiff; |
| 1527 | |
| 1528 | vp = &is->pictq[is->pictq_windex]; |
| 1529 | |
| 1530 | free_picture(vp); |
| 1531 | |
| 1532 | video_open(is, 0, vp); |
| 1533 | |
| 1534 | vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height, |
| 1535 | SDL_YV12_OVERLAY, |
| 1536 | screen); |
| 1537 | bufferdiff = vp->bmp ? FFMAX(vp->bmp->pixels[0], vp->bmp->pixels[1]) - FFMIN(vp->bmp->pixels[0], vp->bmp->pixels[1]) : 0; |
| 1538 | if (!vp->bmp || vp->bmp->pitches[0] < vp->width || bufferdiff < (int64_t)vp->height * vp->bmp->pitches[0]) { |
| 1539 | /* SDL allocates a buffer smaller than requested if the video |
| 1540 | * overlay hardware is unable to support the requested size. */ |
| 1541 | av_log(NULL, AV_LOG_FATAL, |
| 1542 | "Error: the video system does not support an image\n" |
| 1543 | "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n" |
| 1544 | "to reduce the image size.\n", vp->width, vp->height ); |
| 1545 | do_exit(is); |
| 1546 | } |
| 1547 | |
| 1548 | SDL_LockMutex(is->pictq_mutex); |
| 1549 | vp->allocated = 1; |
| 1550 | SDL_CondSignal(is->pictq_cond); |
| 1551 | SDL_UnlockMutex(is->pictq_mutex); |
| 1552 | } |
| 1553 | |
| 1554 | static void duplicate_right_border_pixels(SDL_Overlay *bmp) { |
| 1555 | int i, width, height; |
| 1556 | Uint8 *p, *maxp; |
| 1557 | for (i = 0; i < 3; i++) { |
| 1558 | width = bmp->w; |
| 1559 | height = bmp->h; |
| 1560 | if (i > 0) { |
| 1561 | width >>= 1; |
| 1562 | height >>= 1; |
| 1563 | } |
| 1564 | if (bmp->pitches[i] > width) { |
| 1565 | maxp = bmp->pixels[i] + bmp->pitches[i] * height - 1; |
| 1566 | for (p = bmp->pixels[i] + width - 1; p < maxp; p += bmp->pitches[i]) |
| 1567 | *(p+1) = *p; |
| 1568 | } |
| 1569 | } |
| 1570 | } |
| 1571 | |
| 1572 | static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, double duration, int64_t pos, int serial) |
| 1573 | { |
| 1574 | VideoPicture *vp; |
| 1575 | |
| 1576 | #if defined(DEBUG_SYNC) && 0 |
| 1577 | printf("frame_type=%c pts=%0.3f\n", |
| 1578 | av_get_picture_type_char(src_frame->pict_type), pts); |
| 1579 | #endif |
| 1580 | |
| 1581 | /* wait until we have space to put a new picture */ |
| 1582 | SDL_LockMutex(is->pictq_mutex); |
| 1583 | |
| 1584 | while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE && |
| 1585 | !is->videoq.abort_request) { |
| 1586 | SDL_CondWait(is->pictq_cond, is->pictq_mutex); |
| 1587 | } |
| 1588 | SDL_UnlockMutex(is->pictq_mutex); |
| 1589 | |
| 1590 | if (is->videoq.abort_request) |
| 1591 | return -1; |
| 1592 | |
| 1593 | vp = &is->pictq[is->pictq_windex]; |
| 1594 | |
| 1595 | vp->sar = src_frame->sample_aspect_ratio; |
| 1596 | |
| 1597 | /* alloc or resize hardware picture buffer */ |
| 1598 | if (!vp->bmp || vp->reallocate || !vp->allocated || |
| 1599 | vp->width != src_frame->width || |
| 1600 | vp->height != src_frame->height) { |
| 1601 | SDL_Event event; |
| 1602 | |
| 1603 | vp->allocated = 0; |
| 1604 | vp->reallocate = 0; |
| 1605 | vp->width = src_frame->width; |
| 1606 | vp->height = src_frame->height; |
| 1607 | |
| 1608 | /* the allocation must be done in the main thread to avoid |
| 1609 | locking problems. */ |
| 1610 | event.type = FF_ALLOC_EVENT; |
| 1611 | event.user.data1 = is; |
| 1612 | SDL_PushEvent(&event); |
| 1613 | |
| 1614 | /* wait until the picture is allocated */ |
| 1615 | SDL_LockMutex(is->pictq_mutex); |
| 1616 | while (!vp->allocated && !is->videoq.abort_request) { |
| 1617 | SDL_CondWait(is->pictq_cond, is->pictq_mutex); |
| 1618 | } |
| 1619 | /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */ |
| 1620 | if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) { |
| 1621 | while (!vp->allocated && !is->abort_request) { |
| 1622 | SDL_CondWait(is->pictq_cond, is->pictq_mutex); |
| 1623 | } |
| 1624 | } |
| 1625 | SDL_UnlockMutex(is->pictq_mutex); |
| 1626 | |
| 1627 | if (is->videoq.abort_request) |
| 1628 | return -1; |
| 1629 | } |
| 1630 | |
| 1631 | /* if the frame is not skipped, then display it */ |
| 1632 | if (vp->bmp) { |
| 1633 | AVPicture pict = { { 0 } }; |
| 1634 | |
| 1635 | /* get a pointer on the bitmap */ |
| 1636 | SDL_LockYUVOverlay (vp->bmp); |
| 1637 | |
| 1638 | pict.data[0] = vp->bmp->pixels[0]; |
| 1639 | pict.data[1] = vp->bmp->pixels[2]; |
| 1640 | pict.data[2] = vp->bmp->pixels[1]; |
| 1641 | |
| 1642 | pict.linesize[0] = vp->bmp->pitches[0]; |
| 1643 | pict.linesize[1] = vp->bmp->pitches[2]; |
| 1644 | pict.linesize[2] = vp->bmp->pitches[1]; |
| 1645 | |
| 1646 | #if CONFIG_AVFILTER |
| 1647 | // FIXME use direct rendering |
| 1648 | av_picture_copy(&pict, (AVPicture *)src_frame, |
| 1649 | src_frame->format, vp->width, vp->height); |
| 1650 | #else |
| 1651 | av_opt_get_int(sws_opts, "sws_flags", 0, &sws_flags); |
| 1652 | is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx, |
| 1653 | vp->width, vp->height, src_frame->format, vp->width, vp->height, |
| 1654 | AV_PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL); |
| 1655 | if (!is->img_convert_ctx) { |
| 1656 | av_log(NULL, AV_LOG_FATAL, "Cannot initialize the conversion context\n"); |
| 1657 | exit(1); |
| 1658 | } |
| 1659 | sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize, |
| 1660 | 0, vp->height, pict.data, pict.linesize); |
| 1661 | #endif |
| 1662 | /* workaround SDL PITCH_WORKAROUND */ |
| 1663 | duplicate_right_border_pixels(vp->bmp); |
| 1664 | /* update the bitmap content */ |
| 1665 | SDL_UnlockYUVOverlay(vp->bmp); |
| 1666 | |
| 1667 | vp->pts = pts; |
| 1668 | vp->duration = duration; |
| 1669 | vp->pos = pos; |
| 1670 | vp->serial = serial; |
| 1671 | |
| 1672 | /* now we can update the picture count */ |
| 1673 | if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE) |
| 1674 | is->pictq_windex = 0; |
| 1675 | SDL_LockMutex(is->pictq_mutex); |
| 1676 | is->pictq_size++; |
| 1677 | SDL_UnlockMutex(is->pictq_mutex); |
| 1678 | } |
| 1679 | return 0; |
| 1680 | } |
| 1681 | |
| 1682 | static int get_video_frame(VideoState *is, AVFrame *frame, AVPacket *pkt, int *serial) |
| 1683 | { |
| 1684 | int got_picture; |
| 1685 | |
| 1686 | if (packet_queue_get(&is->videoq, pkt, 1, serial) < 0) |
| 1687 | return -1; |
| 1688 | |
| 1689 | if (pkt->data == flush_pkt.data) { |
| 1690 | avcodec_flush_buffers(is->video_st->codec); |
| 1691 | return 0; |
| 1692 | } |
| 1693 | |
| 1694 | if(avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt) < 0) |
| 1695 | return 0; |
| 1696 | |
| 1697 | if (!got_picture && !pkt->data) |
| 1698 | is->video_finished = *serial; |
| 1699 | |
| 1700 | if (got_picture) { |
| 1701 | int ret = 1; |
| 1702 | double dpts = NAN; |
| 1703 | |
| 1704 | if (decoder_reorder_pts == -1) { |
| 1705 | frame->pts = av_frame_get_best_effort_timestamp(frame); |
| 1706 | } else if (decoder_reorder_pts) { |
| 1707 | frame->pts = frame->pkt_pts; |
| 1708 | } else { |
| 1709 | frame->pts = frame->pkt_dts; |
| 1710 | } |
| 1711 | |
| 1712 | if (frame->pts != AV_NOPTS_VALUE) |
| 1713 | dpts = av_q2d(is->video_st->time_base) * frame->pts; |
| 1714 | |
| 1715 | frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame); |
| 1716 | |
| 1717 | if (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) { |
| 1718 | if (frame->pts != AV_NOPTS_VALUE) { |
| 1719 | double diff = dpts - get_master_clock(is); |
| 1720 | if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD && |
| 1721 | diff - is->frame_last_filter_delay < 0 && |
| 1722 | *serial == is->vidclk.serial && |
| 1723 | is->videoq.nb_packets) { |
| 1724 | is->frame_drops_early++; |
| 1725 | av_frame_unref(frame); |
| 1726 | ret = 0; |
| 1727 | } |
| 1728 | } |
| 1729 | } |
| 1730 | |
| 1731 | return ret; |
| 1732 | } |
| 1733 | return 0; |
| 1734 | } |
| 1735 | |
| 1736 | #if CONFIG_AVFILTER |
| 1737 | static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph, |
| 1738 | AVFilterContext *source_ctx, AVFilterContext *sink_ctx) |
| 1739 | { |
| 1740 | int ret, i; |
| 1741 | int nb_filters = graph->nb_filters; |
| 1742 | AVFilterInOut *outputs = NULL, *inputs = NULL; |
| 1743 | |
| 1744 | if (filtergraph) { |
| 1745 | outputs = avfilter_inout_alloc(); |
| 1746 | inputs = avfilter_inout_alloc(); |
| 1747 | if (!outputs || !inputs) { |
| 1748 | ret = AVERROR(ENOMEM); |
| 1749 | goto fail; |
| 1750 | } |
| 1751 | |
| 1752 | outputs->name = av_strdup("in"); |
| 1753 | outputs->filter_ctx = source_ctx; |
| 1754 | outputs->pad_idx = 0; |
| 1755 | outputs->next = NULL; |
| 1756 | |
| 1757 | inputs->name = av_strdup("out"); |
| 1758 | inputs->filter_ctx = sink_ctx; |
| 1759 | inputs->pad_idx = 0; |
| 1760 | inputs->next = NULL; |
| 1761 | |
| 1762 | if ((ret = avfilter_graph_parse_ptr(graph, filtergraph, &inputs, &outputs, NULL)) < 0) |
| 1763 | goto fail; |
| 1764 | } else { |
| 1765 | if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0) |
| 1766 | goto fail; |
| 1767 | } |
| 1768 | |
| 1769 | /* Reorder the filters to ensure that inputs of the custom filters are merged first */ |
| 1770 | for (i = 0; i < graph->nb_filters - nb_filters; i++) |
| 1771 | FFSWAP(AVFilterContext*, graph->filters[i], graph->filters[i + nb_filters]); |
| 1772 | |
| 1773 | ret = avfilter_graph_config(graph, NULL); |
| 1774 | fail: |
| 1775 | avfilter_inout_free(&outputs); |
| 1776 | avfilter_inout_free(&inputs); |
| 1777 | return ret; |
| 1778 | } |
| 1779 | |
| 1780 | static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters, AVFrame *frame) |
| 1781 | { |
| 1782 | static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE }; |
| 1783 | char sws_flags_str[128]; |
| 1784 | char buffersrc_args[256]; |
| 1785 | int ret; |
| 1786 | AVFilterContext *filt_src = NULL, *filt_out = NULL, *last_filter = NULL; |
| 1787 | AVCodecContext *codec = is->video_st->codec; |
| 1788 | AVRational fr = av_guess_frame_rate(is->ic, is->video_st, NULL); |
| 1789 | |
| 1790 | av_opt_get_int(sws_opts, "sws_flags", 0, &sws_flags); |
| 1791 | snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%"PRId64, sws_flags); |
| 1792 | graph->scale_sws_opts = av_strdup(sws_flags_str); |
| 1793 | |
| 1794 | snprintf(buffersrc_args, sizeof(buffersrc_args), |
| 1795 | "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d", |
| 1796 | frame->width, frame->height, frame->format, |
| 1797 | is->video_st->time_base.num, is->video_st->time_base.den, |
| 1798 | codec->sample_aspect_ratio.num, FFMAX(codec->sample_aspect_ratio.den, 1)); |
| 1799 | if (fr.num && fr.den) |
| 1800 | av_strlcatf(buffersrc_args, sizeof(buffersrc_args), ":frame_rate=%d/%d", fr.num, fr.den); |
| 1801 | |
| 1802 | if ((ret = avfilter_graph_create_filter(&filt_src, |
| 1803 | avfilter_get_by_name("buffer"), |
| 1804 | "ffplay_buffer", buffersrc_args, NULL, |
| 1805 | graph)) < 0) |
| 1806 | goto fail; |
| 1807 | |
| 1808 | ret = avfilter_graph_create_filter(&filt_out, |
| 1809 | avfilter_get_by_name("buffersink"), |
| 1810 | "ffplay_buffersink", NULL, NULL, graph); |
| 1811 | if (ret < 0) |
| 1812 | goto fail; |
| 1813 | |
| 1814 | if ((ret = av_opt_set_int_list(filt_out, "pix_fmts", pix_fmts, AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0) |
| 1815 | goto fail; |
| 1816 | |
| 1817 | last_filter = filt_out; |
| 1818 | |
| 1819 | /* Note: this macro adds a filter before the lastly added filter, so the |
| 1820 | * processing order of the filters is in reverse */ |
| 1821 | #define INSERT_FILT(name, arg) do { \ |
| 1822 | AVFilterContext *filt_ctx; \ |
| 1823 | \ |
| 1824 | ret = avfilter_graph_create_filter(&filt_ctx, \ |
| 1825 | avfilter_get_by_name(name), \ |
| 1826 | "ffplay_" name, arg, NULL, graph); \ |
| 1827 | if (ret < 0) \ |
| 1828 | goto fail; \ |
| 1829 | \ |
| 1830 | ret = avfilter_link(filt_ctx, 0, last_filter, 0); \ |
| 1831 | if (ret < 0) \ |
| 1832 | goto fail; \ |
| 1833 | \ |
| 1834 | last_filter = filt_ctx; \ |
| 1835 | } while (0) |
| 1836 | |
| 1837 | /* SDL YUV code is not handling odd width/height for some driver |
| 1838 | * combinations, therefore we crop the picture to an even width/height. */ |
| 1839 | INSERT_FILT("crop", "floor(in_w/2)*2:floor(in_h/2)*2"); |
| 1840 | |
| 1841 | if (autorotate) { |
| 1842 | AVDictionaryEntry *rotate_tag = av_dict_get(is->video_st->metadata, "rotate", NULL, 0); |
| 1843 | if (rotate_tag && *rotate_tag->value && strcmp(rotate_tag->value, "0")) { |
| 1844 | if (!strcmp(rotate_tag->value, "90")) { |
| 1845 | INSERT_FILT("transpose", "clock"); |
| 1846 | } else if (!strcmp(rotate_tag->value, "180")) { |
| 1847 | INSERT_FILT("hflip", NULL); |
| 1848 | INSERT_FILT("vflip", NULL); |
| 1849 | } else if (!strcmp(rotate_tag->value, "270")) { |
| 1850 | INSERT_FILT("transpose", "cclock"); |
| 1851 | } else { |
| 1852 | char rotate_buf[64]; |
| 1853 | snprintf(rotate_buf, sizeof(rotate_buf), "%s*PI/180", rotate_tag->value); |
| 1854 | INSERT_FILT("rotate", rotate_buf); |
| 1855 | } |
| 1856 | } |
| 1857 | } |
| 1858 | |
| 1859 | if ((ret = configure_filtergraph(graph, vfilters, filt_src, last_filter)) < 0) |
| 1860 | goto fail; |
| 1861 | |
| 1862 | is->in_video_filter = filt_src; |
| 1863 | is->out_video_filter = filt_out; |
| 1864 | |
| 1865 | fail: |
| 1866 | return ret; |
| 1867 | } |
| 1868 | |
| 1869 | static int configure_audio_filters(VideoState *is, const char *afilters, int force_output_format) |
| 1870 | { |
| 1871 | static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE }; |
| 1872 | int sample_rates[2] = { 0, -1 }; |
| 1873 | int64_t channel_layouts[2] = { 0, -1 }; |
| 1874 | int channels[2] = { 0, -1 }; |
| 1875 | AVFilterContext *filt_asrc = NULL, *filt_asink = NULL; |
| 1876 | char aresample_swr_opts[512] = ""; |
| 1877 | AVDictionaryEntry *e = NULL; |
| 1878 | char asrc_args[256]; |
| 1879 | int ret; |
| 1880 | |
| 1881 | avfilter_graph_free(&is->agraph); |
| 1882 | if (!(is->agraph = avfilter_graph_alloc())) |
| 1883 | return AVERROR(ENOMEM); |
| 1884 | |
| 1885 | while ((e = av_dict_get(swr_opts, "", e, AV_DICT_IGNORE_SUFFIX))) |
| 1886 | av_strlcatf(aresample_swr_opts, sizeof(aresample_swr_opts), "%s=%s:", e->key, e->value); |
| 1887 | if (strlen(aresample_swr_opts)) |
| 1888 | aresample_swr_opts[strlen(aresample_swr_opts)-1] = '\0'; |
| 1889 | av_opt_set(is->agraph, "aresample_swr_opts", aresample_swr_opts, 0); |
| 1890 | |
| 1891 | ret = snprintf(asrc_args, sizeof(asrc_args), |
| 1892 | "sample_rate=%d:sample_fmt=%s:channels=%d:time_base=%d/%d", |
| 1893 | is->audio_filter_src.freq, av_get_sample_fmt_name(is->audio_filter_src.fmt), |
| 1894 | is->audio_filter_src.channels, |
| 1895 | 1, is->audio_filter_src.freq); |
| 1896 | if (is->audio_filter_src.channel_layout) |
| 1897 | snprintf(asrc_args + ret, sizeof(asrc_args) - ret, |
| 1898 | ":channel_layout=0x%"PRIx64, is->audio_filter_src.channel_layout); |
| 1899 | |
| 1900 | ret = avfilter_graph_create_filter(&filt_asrc, |
| 1901 | avfilter_get_by_name("abuffer"), "ffplay_abuffer", |
| 1902 | asrc_args, NULL, is->agraph); |
| 1903 | if (ret < 0) |
| 1904 | goto end; |
| 1905 | |
| 1906 | |
| 1907 | ret = avfilter_graph_create_filter(&filt_asink, |
| 1908 | avfilter_get_by_name("abuffersink"), "ffplay_abuffersink", |
| 1909 | NULL, NULL, is->agraph); |
| 1910 | if (ret < 0) |
| 1911 | goto end; |
| 1912 | |
| 1913 | if ((ret = av_opt_set_int_list(filt_asink, "sample_fmts", sample_fmts, AV_SAMPLE_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0) |
| 1914 | goto end; |
| 1915 | if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 1, AV_OPT_SEARCH_CHILDREN)) < 0) |
| 1916 | goto end; |
| 1917 | |
| 1918 | if (force_output_format) { |
| 1919 | channel_layouts[0] = is->audio_tgt.channel_layout; |
| 1920 | channels [0] = is->audio_tgt.channels; |
| 1921 | sample_rates [0] = is->audio_tgt.freq; |
| 1922 | if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 0, AV_OPT_SEARCH_CHILDREN)) < 0) |
| 1923 | goto end; |
| 1924 | if ((ret = av_opt_set_int_list(filt_asink, "channel_layouts", channel_layouts, -1, AV_OPT_SEARCH_CHILDREN)) < 0) |
| 1925 | goto end; |
| 1926 | if ((ret = av_opt_set_int_list(filt_asink, "channel_counts" , channels , -1, AV_OPT_SEARCH_CHILDREN)) < 0) |
| 1927 | goto end; |
| 1928 | if ((ret = av_opt_set_int_list(filt_asink, "sample_rates" , sample_rates , -1, AV_OPT_SEARCH_CHILDREN)) < 0) |
| 1929 | goto end; |
| 1930 | } |
| 1931 | |
| 1932 | |
| 1933 | if ((ret = configure_filtergraph(is->agraph, afilters, filt_asrc, filt_asink)) < 0) |
| 1934 | goto end; |
| 1935 | |
| 1936 | is->in_audio_filter = filt_asrc; |
| 1937 | is->out_audio_filter = filt_asink; |
| 1938 | |
| 1939 | end: |
| 1940 | if (ret < 0) |
| 1941 | avfilter_graph_free(&is->agraph); |
| 1942 | return ret; |
| 1943 | } |
| 1944 | #endif /* CONFIG_AVFILTER */ |
| 1945 | |
| 1946 | static int video_thread(void *arg) |
| 1947 | { |
| 1948 | AVPacket pkt = { 0 }; |
| 1949 | VideoState *is = arg; |
| 1950 | AVFrame *frame = av_frame_alloc(); |
| 1951 | double pts; |
| 1952 | double duration; |
| 1953 | int ret; |
| 1954 | int serial = 0; |
| 1955 | AVRational tb = is->video_st->time_base; |
| 1956 | AVRational frame_rate = av_guess_frame_rate(is->ic, is->video_st, NULL); |
| 1957 | |
| 1958 | #if CONFIG_AVFILTER |
| 1959 | AVFilterGraph *graph = avfilter_graph_alloc(); |
| 1960 | AVFilterContext *filt_out = NULL, *filt_in = NULL; |
| 1961 | int last_w = 0; |
| 1962 | int last_h = 0; |
| 1963 | enum AVPixelFormat last_format = -2; |
| 1964 | int last_serial = -1; |
| 1965 | int last_vfilter_idx = 0; |
| 1966 | #endif |
| 1967 | |
| 1968 | for (;;) { |
| 1969 | while (is->paused && !is->videoq.abort_request) |
| 1970 | SDL_Delay(10); |
| 1971 | |
| 1972 | av_free_packet(&pkt); |
| 1973 | |
| 1974 | ret = get_video_frame(is, frame, &pkt, &serial); |
| 1975 | if (ret < 0) |
| 1976 | goto the_end; |
| 1977 | if (!ret) |
| 1978 | continue; |
| 1979 | |
| 1980 | #if CONFIG_AVFILTER |
| 1981 | if ( last_w != frame->width |
| 1982 | || last_h != frame->height |
| 1983 | || last_format != frame->format |
| 1984 | || last_serial != serial |
| 1985 | || last_vfilter_idx != is->vfilter_idx) { |
| 1986 | av_log(NULL, AV_LOG_DEBUG, |
| 1987 | "Video frame changed from size:%dx%d format:%s serial:%d to size:%dx%d format:%s serial:%d\n", |
| 1988 | last_w, last_h, |
| 1989 | (const char *)av_x_if_null(av_get_pix_fmt_name(last_format), "none"), last_serial, |
| 1990 | frame->width, frame->height, |
| 1991 | (const char *)av_x_if_null(av_get_pix_fmt_name(frame->format), "none"), serial); |
| 1992 | avfilter_graph_free(&graph); |
| 1993 | graph = avfilter_graph_alloc(); |
| 1994 | if ((ret = configure_video_filters(graph, is, vfilters_list ? vfilters_list[is->vfilter_idx] : NULL, frame)) < 0) { |
| 1995 | SDL_Event event; |
| 1996 | event.type = FF_QUIT_EVENT; |
| 1997 | event.user.data1 = is; |
| 1998 | SDL_PushEvent(&event); |
| 1999 | goto the_end; |
| 2000 | } |
| 2001 | filt_in = is->in_video_filter; |
| 2002 | filt_out = is->out_video_filter; |
| 2003 | last_w = frame->width; |
| 2004 | last_h = frame->height; |
| 2005 | last_format = frame->format; |
| 2006 | last_serial = serial; |
| 2007 | last_vfilter_idx = is->vfilter_idx; |
| 2008 | frame_rate = filt_out->inputs[0]->frame_rate; |
| 2009 | } |
| 2010 | |
| 2011 | ret = av_buffersrc_add_frame(filt_in, frame); |
| 2012 | if (ret < 0) |
| 2013 | goto the_end; |
| 2014 | |
| 2015 | while (ret >= 0) { |
| 2016 | is->frame_last_returned_time = av_gettime_relative() / 1000000.0; |
| 2017 | |
| 2018 | ret = av_buffersink_get_frame_flags(filt_out, frame, 0); |
| 2019 | if (ret < 0) { |
| 2020 | if (ret == AVERROR_EOF) |
| 2021 | is->video_finished = serial; |
| 2022 | ret = 0; |
| 2023 | break; |
| 2024 | } |
| 2025 | |
| 2026 | is->frame_last_filter_delay = av_gettime_relative() / 1000000.0 - is->frame_last_returned_time; |
| 2027 | if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0) |
| 2028 | is->frame_last_filter_delay = 0; |
| 2029 | tb = filt_out->inputs[0]->time_base; |
| 2030 | #endif |
| 2031 | duration = (frame_rate.num && frame_rate.den ? av_q2d((AVRational){frame_rate.den, frame_rate.num}) : 0); |
| 2032 | pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb); |
| 2033 | ret = queue_picture(is, frame, pts, duration, av_frame_get_pkt_pos(frame), serial); |
| 2034 | av_frame_unref(frame); |
| 2035 | #if CONFIG_AVFILTER |
| 2036 | } |
| 2037 | #endif |
| 2038 | |
| 2039 | if (ret < 0) |
| 2040 | goto the_end; |
| 2041 | } |
| 2042 | the_end: |
| 2043 | #if CONFIG_AVFILTER |
| 2044 | avfilter_graph_free(&graph); |
| 2045 | #endif |
| 2046 | av_free_packet(&pkt); |
| 2047 | av_frame_free(&frame); |
| 2048 | return 0; |
| 2049 | } |
| 2050 | |
| 2051 | static int subtitle_thread(void *arg) |
| 2052 | { |
| 2053 | VideoState *is = arg; |
| 2054 | SubPicture *sp; |
| 2055 | AVPacket pkt1, *pkt = &pkt1; |
| 2056 | int got_subtitle; |
| 2057 | int serial; |
| 2058 | double pts; |
| 2059 | int i, j; |
| 2060 | int r, g, b, y, u, v, a; |
| 2061 | |
| 2062 | for (;;) { |
| 2063 | while (is->paused && !is->subtitleq.abort_request) { |
| 2064 | SDL_Delay(10); |
| 2065 | } |
| 2066 | if (packet_queue_get(&is->subtitleq, pkt, 1, &serial) < 0) |
| 2067 | break; |
| 2068 | |
| 2069 | if (pkt->data == flush_pkt.data) { |
| 2070 | avcodec_flush_buffers(is->subtitle_st->codec); |
| 2071 | continue; |
| 2072 | } |
| 2073 | SDL_LockMutex(is->subpq_mutex); |
| 2074 | while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE && |
| 2075 | !is->subtitleq.abort_request) { |
| 2076 | SDL_CondWait(is->subpq_cond, is->subpq_mutex); |
| 2077 | } |
| 2078 | SDL_UnlockMutex(is->subpq_mutex); |
| 2079 | |
| 2080 | if (is->subtitleq.abort_request) |
| 2081 | return 0; |
| 2082 | |
| 2083 | sp = &is->subpq[is->subpq_windex]; |
| 2084 | |
| 2085 | /* NOTE: ipts is the PTS of the _first_ picture beginning in |
| 2086 | this packet, if any */ |
| 2087 | pts = 0; |
| 2088 | if (pkt->pts != AV_NOPTS_VALUE) |
| 2089 | pts = av_q2d(is->subtitle_st->time_base) * pkt->pts; |
| 2090 | |
| 2091 | avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub, |
| 2092 | &got_subtitle, pkt); |
| 2093 | if (got_subtitle && sp->sub.format == 0) { |
| 2094 | if (sp->sub.pts != AV_NOPTS_VALUE) |
| 2095 | pts = sp->sub.pts / (double)AV_TIME_BASE; |
| 2096 | sp->pts = pts; |
| 2097 | sp->serial = serial; |
| 2098 | |
| 2099 | for (i = 0; i < sp->sub.num_rects; i++) |
| 2100 | { |
| 2101 | for (j = 0; j < sp->sub.rects[i]->nb_colors; j++) |
| 2102 | { |
| 2103 | RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j); |
| 2104 | y = RGB_TO_Y_CCIR(r, g, b); |
| 2105 | u = RGB_TO_U_CCIR(r, g, b, 0); |
| 2106 | v = RGB_TO_V_CCIR(r, g, b, 0); |
| 2107 | YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a); |
| 2108 | } |
| 2109 | } |
| 2110 | |
| 2111 | /* now we can update the picture count */ |
| 2112 | if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE) |
| 2113 | is->subpq_windex = 0; |
| 2114 | SDL_LockMutex(is->subpq_mutex); |
| 2115 | is->subpq_size++; |
| 2116 | SDL_UnlockMutex(is->subpq_mutex); |
| 2117 | } else if (got_subtitle) { |
| 2118 | avsubtitle_free(&sp->sub); |
| 2119 | } |
| 2120 | av_free_packet(pkt); |
| 2121 | } |
| 2122 | return 0; |
| 2123 | } |
| 2124 | |
| 2125 | /* copy samples for viewing in editor window */ |
| 2126 | static void update_sample_display(VideoState *is, short *samples, int samples_size) |
| 2127 | { |
| 2128 | int size, len; |
| 2129 | |
| 2130 | size = samples_size / sizeof(short); |
| 2131 | while (size > 0) { |
| 2132 | len = SAMPLE_ARRAY_SIZE - is->sample_array_index; |
| 2133 | if (len > size) |
| 2134 | len = size; |
| 2135 | memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short)); |
| 2136 | samples += len; |
| 2137 | is->sample_array_index += len; |
| 2138 | if (is->sample_array_index >= SAMPLE_ARRAY_SIZE) |
| 2139 | is->sample_array_index = 0; |
| 2140 | size -= len; |
| 2141 | } |
| 2142 | } |
| 2143 | |
| 2144 | /* return the wanted number of samples to get better sync if sync_type is video |
| 2145 | * or external master clock */ |
| 2146 | static int synchronize_audio(VideoState *is, int nb_samples) |
| 2147 | { |
| 2148 | int wanted_nb_samples = nb_samples; |
| 2149 | |
| 2150 | /* if not master, then we try to remove or add samples to correct the clock */ |
| 2151 | if (get_master_sync_type(is) != AV_SYNC_AUDIO_MASTER) { |
| 2152 | double diff, avg_diff; |
| 2153 | int min_nb_samples, max_nb_samples; |
| 2154 | |
| 2155 | diff = get_clock(&is->audclk) - get_master_clock(is); |
| 2156 | |
| 2157 | if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD) { |
| 2158 | is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum; |
| 2159 | if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) { |
| 2160 | /* not enough measures to have a correct estimate */ |
| 2161 | is->audio_diff_avg_count++; |
| 2162 | } else { |
| 2163 | /* estimate the A-V difference */ |
| 2164 | avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef); |
| 2165 | |
| 2166 | if (fabs(avg_diff) >= is->audio_diff_threshold) { |
| 2167 | wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq); |
| 2168 | min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100)); |
| 2169 | max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100)); |
| 2170 | wanted_nb_samples = FFMIN(FFMAX(wanted_nb_samples, min_nb_samples), max_nb_samples); |
| 2171 | } |
| 2172 | av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f %f\n", |
| 2173 | diff, avg_diff, wanted_nb_samples - nb_samples, |
| 2174 | is->audio_clock, is->audio_diff_threshold); |
| 2175 | } |
| 2176 | } else { |
| 2177 | /* too big difference : may be initial PTS errors, so |
| 2178 | reset A-V filter */ |
| 2179 | is->audio_diff_avg_count = 0; |
| 2180 | is->audio_diff_cum = 0; |
| 2181 | } |
| 2182 | } |
| 2183 | |
| 2184 | return wanted_nb_samples; |
| 2185 | } |
| 2186 | |
| 2187 | /** |
| 2188 | * Decode one audio frame and return its uncompressed size. |
| 2189 | * |
| 2190 | * The processed audio frame is decoded, converted if required, and |
| 2191 | * stored in is->audio_buf, with size in bytes given by the return |
| 2192 | * value. |
| 2193 | */ |
| 2194 | static int audio_decode_frame(VideoState *is) |
| 2195 | { |
| 2196 | AVPacket *pkt_temp = &is->audio_pkt_temp; |
| 2197 | AVPacket *pkt = &is->audio_pkt; |
| 2198 | AVCodecContext *dec = is->audio_st->codec; |
| 2199 | int len1, data_size, resampled_data_size; |
| 2200 | int64_t dec_channel_layout; |
| 2201 | int got_frame; |
| 2202 | av_unused double audio_clock0; |
| 2203 | int wanted_nb_samples; |
| 2204 | AVRational tb; |
| 2205 | int ret; |
| 2206 | int reconfigure; |
| 2207 | |
| 2208 | for (;;) { |
| 2209 | /* NOTE: the audio packet can contain several frames */ |
| 2210 | while (pkt_temp->stream_index != -1 || is->audio_buf_frames_pending) { |
| 2211 | if (!is->frame) { |
| 2212 | if (!(is->frame = av_frame_alloc())) |
| 2213 | return AVERROR(ENOMEM); |
| 2214 | } else { |
| 2215 | av_frame_unref(is->frame); |
| 2216 | } |
| 2217 | |
| 2218 | if (is->audioq.serial != is->audio_pkt_temp_serial) |
| 2219 | break; |
| 2220 | |
| 2221 | if (is->paused) |
| 2222 | return -1; |
| 2223 | |
| 2224 | if (!is->audio_buf_frames_pending) { |
| 2225 | len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp); |
| 2226 | if (len1 < 0) { |
| 2227 | /* if error, we skip the frame */ |
| 2228 | pkt_temp->size = 0; |
| 2229 | break; |
| 2230 | } |
| 2231 | |
| 2232 | pkt_temp->dts = |
| 2233 | pkt_temp->pts = AV_NOPTS_VALUE; |
| 2234 | pkt_temp->data += len1; |
| 2235 | pkt_temp->size -= len1; |
| 2236 | if (pkt_temp->data && pkt_temp->size <= 0 || !pkt_temp->data && !got_frame) |
| 2237 | pkt_temp->stream_index = -1; |
| 2238 | if (!pkt_temp->data && !got_frame) |
| 2239 | is->audio_finished = is->audio_pkt_temp_serial; |
| 2240 | |
| 2241 | if (!got_frame) |
| 2242 | continue; |
| 2243 | |
| 2244 | tb = (AVRational){1, is->frame->sample_rate}; |
| 2245 | if (is->frame->pts != AV_NOPTS_VALUE) |
| 2246 | is->frame->pts = av_rescale_q(is->frame->pts, dec->time_base, tb); |
| 2247 | else if (is->frame->pkt_pts != AV_NOPTS_VALUE) |
| 2248 | is->frame->pts = av_rescale_q(is->frame->pkt_pts, is->audio_st->time_base, tb); |
| 2249 | else if (is->audio_frame_next_pts != AV_NOPTS_VALUE) |
| 2250 | #if CONFIG_AVFILTER |
| 2251 | is->frame->pts = av_rescale_q(is->audio_frame_next_pts, (AVRational){1, is->audio_filter_src.freq}, tb); |
| 2252 | #else |
| 2253 | is->frame->pts = av_rescale_q(is->audio_frame_next_pts, (AVRational){1, is->audio_src.freq}, tb); |
| 2254 | #endif |
| 2255 | |
| 2256 | if (is->frame->pts != AV_NOPTS_VALUE) |
| 2257 | is->audio_frame_next_pts = is->frame->pts + is->frame->nb_samples; |
| 2258 | |
| 2259 | #if CONFIG_AVFILTER |
| 2260 | dec_channel_layout = get_valid_channel_layout(is->frame->channel_layout, av_frame_get_channels(is->frame)); |
| 2261 | |
| 2262 | reconfigure = |
| 2263 | cmp_audio_fmts(is->audio_filter_src.fmt, is->audio_filter_src.channels, |
| 2264 | is->frame->format, av_frame_get_channels(is->frame)) || |
| 2265 | is->audio_filter_src.channel_layout != dec_channel_layout || |
| 2266 | is->audio_filter_src.freq != is->frame->sample_rate || |
| 2267 | is->audio_pkt_temp_serial != is->audio_last_serial; |
| 2268 | |
| 2269 | if (reconfigure) { |
| 2270 | char buf1[1024], buf2[1024]; |
| 2271 | av_get_channel_layout_string(buf1, sizeof(buf1), -1, is->audio_filter_src.channel_layout); |
| 2272 | av_get_channel_layout_string(buf2, sizeof(buf2), -1, dec_channel_layout); |
| 2273 | av_log(NULL, AV_LOG_DEBUG, |
| 2274 | "Audio frame changed from rate:%d ch:%d fmt:%s layout:%s serial:%d to rate:%d ch:%d fmt:%s layout:%s serial:%d\n", |
| 2275 | is->audio_filter_src.freq, is->audio_filter_src.channels, av_get_sample_fmt_name(is->audio_filter_src.fmt), buf1, is->audio_last_serial, |
| 2276 | is->frame->sample_rate, av_frame_get_channels(is->frame), av_get_sample_fmt_name(is->frame->format), buf2, is->audio_pkt_temp_serial); |
| 2277 | |
| 2278 | is->audio_filter_src.fmt = is->frame->format; |
| 2279 | is->audio_filter_src.channels = av_frame_get_channels(is->frame); |
| 2280 | is->audio_filter_src.channel_layout = dec_channel_layout; |
| 2281 | is->audio_filter_src.freq = is->frame->sample_rate; |
| 2282 | is->audio_last_serial = is->audio_pkt_temp_serial; |
| 2283 | |
| 2284 | if ((ret = configure_audio_filters(is, afilters, 1)) < 0) |
| 2285 | return ret; |
| 2286 | } |
| 2287 | |
| 2288 | if ((ret = av_buffersrc_add_frame(is->in_audio_filter, is->frame)) < 0) |
| 2289 | return ret; |
| 2290 | #endif |
| 2291 | } |
| 2292 | #if CONFIG_AVFILTER |
| 2293 | if ((ret = av_buffersink_get_frame_flags(is->out_audio_filter, is->frame, 0)) < 0) { |
| 2294 | if (ret == AVERROR(EAGAIN)) { |
| 2295 | is->audio_buf_frames_pending = 0; |
| 2296 | continue; |
| 2297 | } |
| 2298 | if (ret == AVERROR_EOF) |
| 2299 | is->audio_finished = is->audio_pkt_temp_serial; |
| 2300 | return ret; |
| 2301 | } |
| 2302 | is->audio_buf_frames_pending = 1; |
| 2303 | tb = is->out_audio_filter->inputs[0]->time_base; |
| 2304 | #endif |
| 2305 | |
| 2306 | data_size = av_samples_get_buffer_size(NULL, av_frame_get_channels(is->frame), |
| 2307 | is->frame->nb_samples, |
| 2308 | is->frame->format, 1); |
| 2309 | |
| 2310 | dec_channel_layout = |
| 2311 | (is->frame->channel_layout && av_frame_get_channels(is->frame) == av_get_channel_layout_nb_channels(is->frame->channel_layout)) ? |
| 2312 | is->frame->channel_layout : av_get_default_channel_layout(av_frame_get_channels(is->frame)); |
| 2313 | wanted_nb_samples = synchronize_audio(is, is->frame->nb_samples); |
| 2314 | |
| 2315 | if (is->frame->format != is->audio_src.fmt || |
| 2316 | dec_channel_layout != is->audio_src.channel_layout || |
| 2317 | is->frame->sample_rate != is->audio_src.freq || |
| 2318 | (wanted_nb_samples != is->frame->nb_samples && !is->swr_ctx)) { |
| 2319 | swr_free(&is->swr_ctx); |
| 2320 | is->swr_ctx = swr_alloc_set_opts(NULL, |
| 2321 | is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq, |
| 2322 | dec_channel_layout, is->frame->format, is->frame->sample_rate, |
| 2323 | 0, NULL); |
| 2324 | if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) { |
| 2325 | av_log(NULL, AV_LOG_ERROR, |
| 2326 | "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n", |
| 2327 | is->frame->sample_rate, av_get_sample_fmt_name(is->frame->format), av_frame_get_channels(is->frame), |
| 2328 | is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels); |
| 2329 | break; |
| 2330 | } |
| 2331 | is->audio_src.channel_layout = dec_channel_layout; |
| 2332 | is->audio_src.channels = av_frame_get_channels(is->frame); |
| 2333 | is->audio_src.freq = is->frame->sample_rate; |
| 2334 | is->audio_src.fmt = is->frame->format; |
| 2335 | } |
| 2336 | |
| 2337 | if (is->swr_ctx) { |
| 2338 | const uint8_t **in = (const uint8_t **)is->frame->extended_data; |
| 2339 | uint8_t **out = &is->audio_buf1; |
| 2340 | int out_count = (int64_t)wanted_nb_samples * is->audio_tgt.freq / is->frame->sample_rate + 256; |
| 2341 | int out_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, out_count, is->audio_tgt.fmt, 0); |
| 2342 | int len2; |
| 2343 | if (out_size < 0) { |
| 2344 | av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size() failed\n"); |
| 2345 | break; |
| 2346 | } |
| 2347 | if (wanted_nb_samples != is->frame->nb_samples) { |
| 2348 | if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - is->frame->nb_samples) * is->audio_tgt.freq / is->frame->sample_rate, |
| 2349 | wanted_nb_samples * is->audio_tgt.freq / is->frame->sample_rate) < 0) { |
| 2350 | av_log(NULL, AV_LOG_ERROR, "swr_set_compensation() failed\n"); |
| 2351 | break; |
| 2352 | } |
| 2353 | } |
| 2354 | av_fast_malloc(&is->audio_buf1, &is->audio_buf1_size, out_size); |
| 2355 | if (!is->audio_buf1) |
| 2356 | return AVERROR(ENOMEM); |
| 2357 | len2 = swr_convert(is->swr_ctx, out, out_count, in, is->frame->nb_samples); |
| 2358 | if (len2 < 0) { |
| 2359 | av_log(NULL, AV_LOG_ERROR, "swr_convert() failed\n"); |
| 2360 | break; |
| 2361 | } |
| 2362 | if (len2 == out_count) { |
| 2363 | av_log(NULL, AV_LOG_WARNING, "audio buffer is probably too small\n"); |
| 2364 | swr_init(is->swr_ctx); |
| 2365 | } |
| 2366 | is->audio_buf = is->audio_buf1; |
| 2367 | resampled_data_size = len2 * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt); |
| 2368 | } else { |
| 2369 | is->audio_buf = is->frame->data[0]; |
| 2370 | resampled_data_size = data_size; |
| 2371 | } |
| 2372 | |
| 2373 | audio_clock0 = is->audio_clock; |
| 2374 | /* update the audio clock with the pts */ |
| 2375 | if (is->frame->pts != AV_NOPTS_VALUE) |
| 2376 | is->audio_clock = is->frame->pts * av_q2d(tb) + (double) is->frame->nb_samples / is->frame->sample_rate; |
| 2377 | else |
| 2378 | is->audio_clock = NAN; |
| 2379 | is->audio_clock_serial = is->audio_pkt_temp_serial; |
| 2380 | #ifdef DEBUG |
| 2381 | { |
| 2382 | static double last_clock; |
| 2383 | printf("audio: delay=%0.3f clock=%0.3f clock0=%0.3f\n", |
| 2384 | is->audio_clock - last_clock, |
| 2385 | is->audio_clock, audio_clock0); |
| 2386 | last_clock = is->audio_clock; |
| 2387 | } |
| 2388 | #endif |
| 2389 | return resampled_data_size; |
| 2390 | } |
| 2391 | |
| 2392 | /* free the current packet */ |
| 2393 | if (pkt->data) |
| 2394 | av_free_packet(pkt); |
| 2395 | memset(pkt_temp, 0, sizeof(*pkt_temp)); |
| 2396 | pkt_temp->stream_index = -1; |
| 2397 | |
| 2398 | if (is->audioq.abort_request) { |
| 2399 | return -1; |
| 2400 | } |
| 2401 | |
| 2402 | if (is->audioq.nb_packets == 0) |
| 2403 | SDL_CondSignal(is->continue_read_thread); |
| 2404 | |
| 2405 | /* read next packet */ |
| 2406 | if ((packet_queue_get(&is->audioq, pkt, 1, &is->audio_pkt_temp_serial)) < 0) |
| 2407 | return -1; |
| 2408 | |
| 2409 | if (pkt->data == flush_pkt.data) { |
| 2410 | avcodec_flush_buffers(dec); |
| 2411 | is->audio_buf_frames_pending = 0; |
| 2412 | is->audio_frame_next_pts = AV_NOPTS_VALUE; |
| 2413 | if ((is->ic->iformat->flags & (AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH | AVFMT_NO_BYTE_SEEK)) && !is->ic->iformat->read_seek) |
| 2414 | is->audio_frame_next_pts = is->audio_st->start_time; |
| 2415 | } |
| 2416 | |
| 2417 | *pkt_temp = *pkt; |
| 2418 | } |
| 2419 | } |
| 2420 | |
| 2421 | /* prepare a new audio buffer */ |
| 2422 | static void sdl_audio_callback(void *opaque, Uint8 *stream, int len) |
| 2423 | { |
| 2424 | VideoState *is = opaque; |
| 2425 | int audio_size, len1; |
| 2426 | |
| 2427 | audio_callback_time = av_gettime_relative(); |
| 2428 | |
| 2429 | while (len > 0) { |
| 2430 | if (is->audio_buf_index >= is->audio_buf_size) { |
| 2431 | audio_size = audio_decode_frame(is); |
| 2432 | if (audio_size < 0) { |
| 2433 | /* if error, just output silence */ |
| 2434 | is->audio_buf = is->silence_buf; |
| 2435 | is->audio_buf_size = sizeof(is->silence_buf) / is->audio_tgt.frame_size * is->audio_tgt.frame_size; |
| 2436 | } else { |
| 2437 | if (is->show_mode != SHOW_MODE_VIDEO) |
| 2438 | update_sample_display(is, (int16_t *)is->audio_buf, audio_size); |
| 2439 | is->audio_buf_size = audio_size; |
| 2440 | } |
| 2441 | is->audio_buf_index = 0; |
| 2442 | } |
| 2443 | len1 = is->audio_buf_size - is->audio_buf_index; |
| 2444 | if (len1 > len) |
| 2445 | len1 = len; |
| 2446 | memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1); |
| 2447 | len -= len1; |
| 2448 | stream += len1; |
| 2449 | is->audio_buf_index += len1; |
| 2450 | } |
| 2451 | is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index; |
| 2452 | /* Let's assume the audio driver that is used by SDL has two periods. */ |
| 2453 | if (!isnan(is->audio_clock)) { |
| 2454 | set_clock_at(&is->audclk, is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / is->audio_tgt.bytes_per_sec, is->audio_clock_serial, audio_callback_time / 1000000.0); |
| 2455 | sync_clock_to_slave(&is->extclk, &is->audclk); |
| 2456 | } |
| 2457 | } |
| 2458 | |
| 2459 | static int audio_open(void *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params) |
| 2460 | { |
| 2461 | SDL_AudioSpec wanted_spec, spec; |
| 2462 | const char *env; |
| 2463 | static const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6}; |
| 2464 | static const int next_sample_rates[] = {0, 44100, 48000, 96000, 192000}; |
| 2465 | int next_sample_rate_idx = FF_ARRAY_ELEMS(next_sample_rates) - 1; |
| 2466 | |
| 2467 | env = SDL_getenv("SDL_AUDIO_CHANNELS"); |
| 2468 | if (env) { |
| 2469 | wanted_nb_channels = atoi(env); |
| 2470 | wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels); |
| 2471 | } |
| 2472 | if (!wanted_channel_layout || wanted_nb_channels != av_get_channel_layout_nb_channels(wanted_channel_layout)) { |
| 2473 | wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels); |
| 2474 | wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX; |
| 2475 | } |
| 2476 | wanted_nb_channels = av_get_channel_layout_nb_channels(wanted_channel_layout); |
| 2477 | wanted_spec.channels = wanted_nb_channels; |
| 2478 | wanted_spec.freq = wanted_sample_rate; |
| 2479 | if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) { |
| 2480 | av_log(NULL, AV_LOG_ERROR, "Invalid sample rate or channel count!\n"); |
| 2481 | return -1; |
| 2482 | } |
| 2483 | while (next_sample_rate_idx && next_sample_rates[next_sample_rate_idx] >= wanted_spec.freq) |
| 2484 | next_sample_rate_idx--; |
| 2485 | wanted_spec.format = AUDIO_S16SYS; |
| 2486 | wanted_spec.silence = 0; |
| 2487 | wanted_spec.samples = FFMAX(SDL_AUDIO_MIN_BUFFER_SIZE, 2 << av_log2(wanted_spec.freq / SDL_AUDIO_MAX_CALLBACKS_PER_SEC)); |
| 2488 | wanted_spec.callback = sdl_audio_callback; |
| 2489 | wanted_spec.userdata = opaque; |
| 2490 | while (SDL_OpenAudio(&wanted_spec, &spec) < 0) { |
| 2491 | av_log(NULL, AV_LOG_WARNING, "SDL_OpenAudio (%d channels, %d Hz): %s\n", |
| 2492 | wanted_spec.channels, wanted_spec.freq, SDL_GetError()); |
| 2493 | wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)]; |
| 2494 | if (!wanted_spec.channels) { |
| 2495 | wanted_spec.freq = next_sample_rates[next_sample_rate_idx--]; |
| 2496 | wanted_spec.channels = wanted_nb_channels; |
| 2497 | if (!wanted_spec.freq) { |
| 2498 | av_log(NULL, AV_LOG_ERROR, |
| 2499 | "No more combinations to try, audio open failed\n"); |
| 2500 | return -1; |
| 2501 | } |
| 2502 | } |
| 2503 | wanted_channel_layout = av_get_default_channel_layout(wanted_spec.channels); |
| 2504 | } |
| 2505 | if (spec.format != AUDIO_S16SYS) { |
| 2506 | av_log(NULL, AV_LOG_ERROR, |
| 2507 | "SDL advised audio format %d is not supported!\n", spec.format); |
| 2508 | return -1; |
| 2509 | } |
| 2510 | if (spec.channels != wanted_spec.channels) { |
| 2511 | wanted_channel_layout = av_get_default_channel_layout(spec.channels); |
| 2512 | if (!wanted_channel_layout) { |
| 2513 | av_log(NULL, AV_LOG_ERROR, |
| 2514 | "SDL advised channel count %d is not supported!\n", spec.channels); |
| 2515 | return -1; |
| 2516 | } |
| 2517 | } |
| 2518 | |
| 2519 | audio_hw_params->fmt = AV_SAMPLE_FMT_S16; |
| 2520 | audio_hw_params->freq = spec.freq; |
| 2521 | audio_hw_params->channel_layout = wanted_channel_layout; |
| 2522 | audio_hw_params->channels = spec.channels; |
| 2523 | audio_hw_params->frame_size = av_samples_get_buffer_size(NULL, audio_hw_params->channels, 1, audio_hw_params->fmt, 1); |
| 2524 | audio_hw_params->bytes_per_sec = av_samples_get_buffer_size(NULL, audio_hw_params->channels, audio_hw_params->freq, audio_hw_params->fmt, 1); |
| 2525 | if (audio_hw_params->bytes_per_sec <= 0 || audio_hw_params->frame_size <= 0) { |
| 2526 | av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size failed\n"); |
| 2527 | return -1; |
| 2528 | } |
| 2529 | return spec.size; |
| 2530 | } |
| 2531 | |
| 2532 | /* open a given stream. Return 0 if OK */ |
| 2533 | static int stream_component_open(VideoState *is, int stream_index) |
| 2534 | { |
| 2535 | AVFormatContext *ic = is->ic; |
| 2536 | AVCodecContext *avctx; |
| 2537 | AVCodec *codec; |
| 2538 | const char *forced_codec_name = NULL; |
| 2539 | AVDictionary *opts; |
| 2540 | AVDictionaryEntry *t = NULL; |
| 2541 | int sample_rate, nb_channels; |
| 2542 | int64_t channel_layout; |
| 2543 | int ret; |
| 2544 | int stream_lowres = lowres; |
| 2545 | |
| 2546 | if (stream_index < 0 || stream_index >= ic->nb_streams) |
| 2547 | return -1; |
| 2548 | avctx = ic->streams[stream_index]->codec; |
| 2549 | |
| 2550 | codec = avcodec_find_decoder(avctx->codec_id); |
| 2551 | |
| 2552 | switch(avctx->codec_type){ |
| 2553 | case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; forced_codec_name = audio_codec_name; break; |
| 2554 | case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; forced_codec_name = subtitle_codec_name; break; |
| 2555 | case AVMEDIA_TYPE_VIDEO : is->last_video_stream = stream_index; forced_codec_name = video_codec_name; break; |
| 2556 | } |
| 2557 | if (forced_codec_name) |
| 2558 | codec = avcodec_find_decoder_by_name(forced_codec_name); |
| 2559 | if (!codec) { |
| 2560 | if (forced_codec_name) av_log(NULL, AV_LOG_WARNING, |
| 2561 | "No codec could be found with name '%s'\n", forced_codec_name); |
| 2562 | else av_log(NULL, AV_LOG_WARNING, |
| 2563 | "No codec could be found with id %d\n", avctx->codec_id); |
| 2564 | return -1; |
| 2565 | } |
| 2566 | |
| 2567 | avctx->codec_id = codec->id; |
| 2568 | avctx->workaround_bugs = workaround_bugs; |
| 2569 | if(stream_lowres > av_codec_get_max_lowres(codec)){ |
| 2570 | av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n", |
| 2571 | av_codec_get_max_lowres(codec)); |
| 2572 | stream_lowres = av_codec_get_max_lowres(codec); |
| 2573 | } |
| 2574 | av_codec_set_lowres(avctx, stream_lowres); |
| 2575 | |
| 2576 | if(stream_lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE; |
| 2577 | if (fast) avctx->flags2 |= CODEC_FLAG2_FAST; |
| 2578 | if(codec->capabilities & CODEC_CAP_DR1) |
| 2579 | avctx->flags |= CODEC_FLAG_EMU_EDGE; |
| 2580 | |
| 2581 | opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec); |
| 2582 | if (!av_dict_get(opts, "threads", NULL, 0)) |
| 2583 | av_dict_set(&opts, "threads", "auto", 0); |
| 2584 | if (stream_lowres) |
| 2585 | av_dict_set_int(&opts, "lowres", stream_lowres, 0); |
| 2586 | if (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO) |
| 2587 | av_dict_set(&opts, "refcounted_frames", "1", 0); |
| 2588 | if (avcodec_open2(avctx, codec, &opts) < 0) |
| 2589 | return -1; |
| 2590 | if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { |
| 2591 | av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); |
| 2592 | return AVERROR_OPTION_NOT_FOUND; |
| 2593 | } |
| 2594 | |
| 2595 | ic->streams[stream_index]->discard = AVDISCARD_DEFAULT; |
| 2596 | switch (avctx->codec_type) { |
| 2597 | case AVMEDIA_TYPE_AUDIO: |
| 2598 | #if CONFIG_AVFILTER |
| 2599 | { |
| 2600 | AVFilterLink *link; |
| 2601 | |
| 2602 | is->audio_filter_src.freq = avctx->sample_rate; |
| 2603 | is->audio_filter_src.channels = avctx->channels; |
| 2604 | is->audio_filter_src.channel_layout = get_valid_channel_layout(avctx->channel_layout, avctx->channels); |
| 2605 | is->audio_filter_src.fmt = avctx->sample_fmt; |
| 2606 | if ((ret = configure_audio_filters(is, afilters, 0)) < 0) |
| 2607 | return ret; |
| 2608 | link = is->out_audio_filter->inputs[0]; |
| 2609 | sample_rate = link->sample_rate; |
| 2610 | nb_channels = link->channels; |
| 2611 | channel_layout = link->channel_layout; |
| 2612 | } |
| 2613 | #else |
| 2614 | sample_rate = avctx->sample_rate; |
| 2615 | nb_channels = avctx->channels; |
| 2616 | channel_layout = avctx->channel_layout; |
| 2617 | #endif |
| 2618 | |
| 2619 | /* prepare audio output */ |
| 2620 | if ((ret = audio_open(is, channel_layout, nb_channels, sample_rate, &is->audio_tgt)) < 0) |
| 2621 | return ret; |
| 2622 | is->audio_hw_buf_size = ret; |
| 2623 | is->audio_src = is->audio_tgt; |
| 2624 | is->audio_buf_size = 0; |
| 2625 | is->audio_buf_index = 0; |
| 2626 | |
| 2627 | /* init averaging filter */ |
| 2628 | is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB); |
| 2629 | is->audio_diff_avg_count = 0; |
| 2630 | /* since we do not have a precise anough audio fifo fullness, |
| 2631 | we correct audio sync only if larger than this threshold */ |
| 2632 | is->audio_diff_threshold = (double)(is->audio_hw_buf_size) / is->audio_tgt.bytes_per_sec; |
| 2633 | |
| 2634 | memset(&is->audio_pkt, 0, sizeof(is->audio_pkt)); |
| 2635 | memset(&is->audio_pkt_temp, 0, sizeof(is->audio_pkt_temp)); |
| 2636 | is->audio_pkt_temp.stream_index = -1; |
| 2637 | |
| 2638 | is->audio_stream = stream_index; |
| 2639 | is->audio_st = ic->streams[stream_index]; |
| 2640 | |
| 2641 | packet_queue_start(&is->audioq); |
| 2642 | SDL_PauseAudio(0); |
| 2643 | break; |
| 2644 | case AVMEDIA_TYPE_VIDEO: |
| 2645 | is->video_stream = stream_index; |
| 2646 | is->video_st = ic->streams[stream_index]; |
| 2647 | |
| 2648 | packet_queue_start(&is->videoq); |
| 2649 | is->video_tid = SDL_CreateThread(video_thread, is); |
| 2650 | is->queue_attachments_req = 1; |
| 2651 | break; |
| 2652 | case AVMEDIA_TYPE_SUBTITLE: |
| 2653 | is->subtitle_stream = stream_index; |
| 2654 | is->subtitle_st = ic->streams[stream_index]; |
| 2655 | packet_queue_start(&is->subtitleq); |
| 2656 | |
| 2657 | is->subtitle_tid = SDL_CreateThread(subtitle_thread, is); |
| 2658 | break; |
| 2659 | default: |
| 2660 | break; |
| 2661 | } |
| 2662 | return 0; |
| 2663 | } |
| 2664 | |
| 2665 | static void stream_component_close(VideoState *is, int stream_index) |
| 2666 | { |
| 2667 | AVFormatContext *ic = is->ic; |
| 2668 | AVCodecContext *avctx; |
| 2669 | |
| 2670 | if (stream_index < 0 || stream_index >= ic->nb_streams) |
| 2671 | return; |
| 2672 | avctx = ic->streams[stream_index]->codec; |
| 2673 | |
| 2674 | switch (avctx->codec_type) { |
| 2675 | case AVMEDIA_TYPE_AUDIO: |
| 2676 | packet_queue_abort(&is->audioq); |
| 2677 | |
| 2678 | SDL_CloseAudio(); |
| 2679 | |
| 2680 | packet_queue_flush(&is->audioq); |
| 2681 | av_free_packet(&is->audio_pkt); |
| 2682 | swr_free(&is->swr_ctx); |
| 2683 | av_freep(&is->audio_buf1); |
| 2684 | is->audio_buf1_size = 0; |
| 2685 | is->audio_buf = NULL; |
| 2686 | av_frame_free(&is->frame); |
| 2687 | |
| 2688 | if (is->rdft) { |
| 2689 | av_rdft_end(is->rdft); |
| 2690 | av_freep(&is->rdft_data); |
| 2691 | is->rdft = NULL; |
| 2692 | is->rdft_bits = 0; |
| 2693 | } |
| 2694 | #if CONFIG_AVFILTER |
| 2695 | avfilter_graph_free(&is->agraph); |
| 2696 | #endif |
| 2697 | break; |
| 2698 | case AVMEDIA_TYPE_VIDEO: |
| 2699 | packet_queue_abort(&is->videoq); |
| 2700 | |
| 2701 | /* note: we also signal this mutex to make sure we deblock the |
| 2702 | video thread in all cases */ |
| 2703 | SDL_LockMutex(is->pictq_mutex); |
| 2704 | SDL_CondSignal(is->pictq_cond); |
| 2705 | SDL_UnlockMutex(is->pictq_mutex); |
| 2706 | |
| 2707 | SDL_WaitThread(is->video_tid, NULL); |
| 2708 | |
| 2709 | packet_queue_flush(&is->videoq); |
| 2710 | break; |
| 2711 | case AVMEDIA_TYPE_SUBTITLE: |
| 2712 | packet_queue_abort(&is->subtitleq); |
| 2713 | |
| 2714 | /* note: we also signal this mutex to make sure we deblock the |
| 2715 | video thread in all cases */ |
| 2716 | SDL_LockMutex(is->subpq_mutex); |
| 2717 | SDL_CondSignal(is->subpq_cond); |
| 2718 | SDL_UnlockMutex(is->subpq_mutex); |
| 2719 | |
| 2720 | SDL_WaitThread(is->subtitle_tid, NULL); |
| 2721 | |
| 2722 | packet_queue_flush(&is->subtitleq); |
| 2723 | break; |
| 2724 | default: |
| 2725 | break; |
| 2726 | } |
| 2727 | |
| 2728 | ic->streams[stream_index]->discard = AVDISCARD_ALL; |
| 2729 | avcodec_close(avctx); |
| 2730 | switch (avctx->codec_type) { |
| 2731 | case AVMEDIA_TYPE_AUDIO: |
| 2732 | is->audio_st = NULL; |
| 2733 | is->audio_stream = -1; |
| 2734 | break; |
| 2735 | case AVMEDIA_TYPE_VIDEO: |
| 2736 | is->video_st = NULL; |
| 2737 | is->video_stream = -1; |
| 2738 | break; |
| 2739 | case AVMEDIA_TYPE_SUBTITLE: |
| 2740 | is->subtitle_st = NULL; |
| 2741 | is->subtitle_stream = -1; |
| 2742 | break; |
| 2743 | default: |
| 2744 | break; |
| 2745 | } |
| 2746 | } |
| 2747 | |
| 2748 | static int decode_interrupt_cb(void *ctx) |
| 2749 | { |
| 2750 | VideoState *is = ctx; |
| 2751 | return is->abort_request; |
| 2752 | } |
| 2753 | |
| 2754 | static int is_realtime(AVFormatContext *s) |
| 2755 | { |
| 2756 | if( !strcmp(s->iformat->name, "rtp") |
| 2757 | || !strcmp(s->iformat->name, "rtsp") |
| 2758 | || !strcmp(s->iformat->name, "sdp") |
| 2759 | ) |
| 2760 | return 1; |
| 2761 | |
| 2762 | if(s->pb && ( !strncmp(s->filename, "rtp:", 4) |
| 2763 | || !strncmp(s->filename, "udp:", 4) |
| 2764 | ) |
| 2765 | ) |
| 2766 | return 1; |
| 2767 | return 0; |
| 2768 | } |
| 2769 | |
| 2770 | /* this thread gets the stream from the disk or the network */ |
| 2771 | static int read_thread(void *arg) |
| 2772 | { |
| 2773 | VideoState *is = arg; |
| 2774 | AVFormatContext *ic = NULL; |
| 2775 | int err, i, ret; |
| 2776 | int st_index[AVMEDIA_TYPE_NB]; |
| 2777 | AVPacket pkt1, *pkt = &pkt1; |
| 2778 | int eof = 0; |
| 2779 | int64_t stream_start_time; |
| 2780 | int pkt_in_play_range = 0; |
| 2781 | AVDictionaryEntry *t; |
| 2782 | AVDictionary **opts; |
| 2783 | int orig_nb_streams; |
| 2784 | SDL_mutex *wait_mutex = SDL_CreateMutex(); |
| 2785 | |
| 2786 | memset(st_index, -1, sizeof(st_index)); |
| 2787 | is->last_video_stream = is->video_stream = -1; |
| 2788 | is->last_audio_stream = is->audio_stream = -1; |
| 2789 | is->last_subtitle_stream = is->subtitle_stream = -1; |
| 2790 | |
| 2791 | ic = avformat_alloc_context(); |
| 2792 | ic->interrupt_callback.callback = decode_interrupt_cb; |
| 2793 | ic->interrupt_callback.opaque = is; |
| 2794 | err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts); |
| 2795 | if (err < 0) { |
| 2796 | print_error(is->filename, err); |
| 2797 | ret = -1; |
| 2798 | goto fail; |
| 2799 | } |
| 2800 | if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { |
| 2801 | av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); |
| 2802 | ret = AVERROR_OPTION_NOT_FOUND; |
| 2803 | goto fail; |
| 2804 | } |
| 2805 | is->ic = ic; |
| 2806 | |
| 2807 | if (genpts) |
| 2808 | ic->flags |= AVFMT_FLAG_GENPTS; |
| 2809 | |
| 2810 | av_format_inject_global_side_data(ic); |
| 2811 | |
| 2812 | opts = setup_find_stream_info_opts(ic, codec_opts); |
| 2813 | orig_nb_streams = ic->nb_streams; |
| 2814 | |
| 2815 | err = avformat_find_stream_info(ic, opts); |
| 2816 | if (err < 0) { |
| 2817 | av_log(NULL, AV_LOG_WARNING, |
| 2818 | "%s: could not find codec parameters\n", is->filename); |
| 2819 | ret = -1; |
| 2820 | goto fail; |
| 2821 | } |
| 2822 | for (i = 0; i < orig_nb_streams; i++) |
| 2823 | av_dict_free(&opts[i]); |
| 2824 | av_freep(&opts); |
| 2825 | |
| 2826 | if (ic->pb) |
| 2827 | ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use avio_feof() to test for the end |
| 2828 | |
| 2829 | if (seek_by_bytes < 0) |
| 2830 | seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT) && strcmp("ogg", ic->iformat->name); |
| 2831 | |
| 2832 | is->max_frame_duration = (ic->iformat->flags & AVFMT_TS_DISCONT) ? 10.0 : 3600.0; |
| 2833 | |
| 2834 | if (!window_title && (t = av_dict_get(ic->metadata, "title", NULL, 0))) |
| 2835 | window_title = av_asprintf("%s - %s", t->value, input_filename); |
| 2836 | |
| 2837 | /* if seeking requested, we execute it */ |
| 2838 | if (start_time != AV_NOPTS_VALUE) { |
| 2839 | int64_t timestamp; |
| 2840 | |
| 2841 | timestamp = start_time; |
| 2842 | /* add the stream start time */ |
| 2843 | if (ic->start_time != AV_NOPTS_VALUE) |
| 2844 | timestamp += ic->start_time; |
| 2845 | ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0); |
| 2846 | if (ret < 0) { |
| 2847 | av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n", |
| 2848 | is->filename, (double)timestamp / AV_TIME_BASE); |
| 2849 | } |
| 2850 | } |
| 2851 | |
| 2852 | is->realtime = is_realtime(ic); |
| 2853 | |
| 2854 | for (i = 0; i < ic->nb_streams; i++) |
| 2855 | ic->streams[i]->discard = AVDISCARD_ALL; |
| 2856 | if (!video_disable) |
| 2857 | st_index[AVMEDIA_TYPE_VIDEO] = |
| 2858 | av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO, |
| 2859 | wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0); |
| 2860 | if (!audio_disable) |
| 2861 | st_index[AVMEDIA_TYPE_AUDIO] = |
| 2862 | av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO, |
| 2863 | wanted_stream[AVMEDIA_TYPE_AUDIO], |
| 2864 | st_index[AVMEDIA_TYPE_VIDEO], |
| 2865 | NULL, 0); |
| 2866 | if (!video_disable && !subtitle_disable) |
| 2867 | st_index[AVMEDIA_TYPE_SUBTITLE] = |
| 2868 | av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE, |
| 2869 | wanted_stream[AVMEDIA_TYPE_SUBTITLE], |
| 2870 | (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ? |
| 2871 | st_index[AVMEDIA_TYPE_AUDIO] : |
| 2872 | st_index[AVMEDIA_TYPE_VIDEO]), |
| 2873 | NULL, 0); |
| 2874 | if (show_status) { |
| 2875 | av_dump_format(ic, 0, is->filename, 0); |
| 2876 | } |
| 2877 | |
| 2878 | is->show_mode = show_mode; |
| 2879 | if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) { |
| 2880 | AVStream *st = ic->streams[st_index[AVMEDIA_TYPE_VIDEO]]; |
| 2881 | AVCodecContext *avctx = st->codec; |
| 2882 | AVRational sar = av_guess_sample_aspect_ratio(ic, st, NULL); |
| 2883 | if (avctx->width) |
| 2884 | set_default_window_size(avctx->width, avctx->height, sar); |
| 2885 | } |
| 2886 | |
| 2887 | /* open the streams */ |
| 2888 | if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) { |
| 2889 | stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]); |
| 2890 | } |
| 2891 | |
| 2892 | ret = -1; |
| 2893 | if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) { |
| 2894 | ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]); |
| 2895 | } |
| 2896 | if (is->show_mode == SHOW_MODE_NONE) |
| 2897 | is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT; |
| 2898 | |
| 2899 | if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) { |
| 2900 | stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]); |
| 2901 | } |
| 2902 | |
| 2903 | if (is->video_stream < 0 && is->audio_stream < 0) { |
| 2904 | av_log(NULL, AV_LOG_FATAL, "Failed to open file '%s' or configure filtergraph\n", |
| 2905 | is->filename); |
| 2906 | ret = -1; |
| 2907 | goto fail; |
| 2908 | } |
| 2909 | |
| 2910 | if (infinite_buffer < 0 && is->realtime) |
| 2911 | infinite_buffer = 1; |
| 2912 | |
| 2913 | for (;;) { |
| 2914 | if (is->abort_request) |
| 2915 | break; |
| 2916 | if (is->paused != is->last_paused) { |
| 2917 | is->last_paused = is->paused; |
| 2918 | if (is->paused) |
| 2919 | is->read_pause_return = av_read_pause(ic); |
| 2920 | else |
| 2921 | av_read_play(ic); |
| 2922 | } |
| 2923 | #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL |
| 2924 | if (is->paused && |
| 2925 | (!strcmp(ic->iformat->name, "rtsp") || |
| 2926 | (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) { |
| 2927 | /* wait 10 ms to avoid trying to get another packet */ |
| 2928 | /* XXX: horrible */ |
| 2929 | SDL_Delay(10); |
| 2930 | continue; |
| 2931 | } |
| 2932 | #endif |
| 2933 | if (is->seek_req) { |
| 2934 | int64_t seek_target = is->seek_pos; |
| 2935 | int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN; |
| 2936 | int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX; |
| 2937 | // FIXME the +-2 is due to rounding being not done in the correct direction in generation |
| 2938 | // of the seek_pos/seek_rel variables |
| 2939 | |
| 2940 | ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags); |
| 2941 | if (ret < 0) { |
| 2942 | av_log(NULL, AV_LOG_ERROR, |
| 2943 | "%s: error while seeking\n", is->ic->filename); |
| 2944 | } else { |
| 2945 | if (is->audio_stream >= 0) { |
| 2946 | packet_queue_flush(&is->audioq); |
| 2947 | packet_queue_put(&is->audioq, &flush_pkt); |
| 2948 | } |
| 2949 | if (is->subtitle_stream >= 0) { |
| 2950 | packet_queue_flush(&is->subtitleq); |
| 2951 | packet_queue_put(&is->subtitleq, &flush_pkt); |
| 2952 | } |
| 2953 | if (is->video_stream >= 0) { |
| 2954 | packet_queue_flush(&is->videoq); |
| 2955 | packet_queue_put(&is->videoq, &flush_pkt); |
| 2956 | } |
| 2957 | if (is->seek_flags & AVSEEK_FLAG_BYTE) { |
| 2958 | set_clock(&is->extclk, NAN, 0); |
| 2959 | } else { |
| 2960 | set_clock(&is->extclk, seek_target / (double)AV_TIME_BASE, 0); |
| 2961 | } |
| 2962 | } |
| 2963 | is->seek_req = 0; |
| 2964 | is->queue_attachments_req = 1; |
| 2965 | eof = 0; |
| 2966 | if (is->paused) |
| 2967 | step_to_next_frame(is); |
| 2968 | } |
| 2969 | if (is->queue_attachments_req) { |
| 2970 | if (is->video_st && is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC) { |
| 2971 | AVPacket copy; |
| 2972 | if ((ret = av_copy_packet(©, &is->video_st->attached_pic)) < 0) |
| 2973 | goto fail; |
| 2974 | packet_queue_put(&is->videoq, ©); |
| 2975 | packet_queue_put_nullpacket(&is->videoq, is->video_stream); |
| 2976 | } |
| 2977 | is->queue_attachments_req = 0; |
| 2978 | } |
| 2979 | |
| 2980 | /* if the queue are full, no need to read more */ |
| 2981 | if (infinite_buffer<1 && |
| 2982 | (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE |
| 2983 | || ( (is->audioq .nb_packets > MIN_FRAMES || is->audio_stream < 0 || is->audioq.abort_request) |
| 2984 | && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0 || is->videoq.abort_request |
| 2985 | || (is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC)) |
| 2986 | && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0 || is->subtitleq.abort_request)))) { |
| 2987 | /* wait 10 ms */ |
| 2988 | SDL_LockMutex(wait_mutex); |
| 2989 | SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10); |
| 2990 | SDL_UnlockMutex(wait_mutex); |
| 2991 | continue; |
| 2992 | } |
| 2993 | if (!is->paused && |
| 2994 | (!is->audio_st || is->audio_finished == is->audioq.serial) && |
| 2995 | (!is->video_st || (is->video_finished == is->videoq.serial && pictq_nb_remaining(is) == 0))) { |
| 2996 | if (loop != 1 && (!loop || --loop)) { |
| 2997 | stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0); |
| 2998 | } else if (autoexit) { |
| 2999 | ret = AVERROR_EOF; |
| 3000 | goto fail; |
| 3001 | } |
| 3002 | } |
| 3003 | if (eof) { |
| 3004 | if (is->video_stream >= 0) |
| 3005 | packet_queue_put_nullpacket(&is->videoq, is->video_stream); |
| 3006 | if (is->audio_stream >= 0) |
| 3007 | packet_queue_put_nullpacket(&is->audioq, is->audio_stream); |
| 3008 | if (is->subtitle_stream >= 0) |
| 3009 | packet_queue_put_nullpacket(&is->subtitleq, is->subtitle_stream); |
| 3010 | SDL_Delay(10); |
| 3011 | eof=0; |
| 3012 | continue; |
| 3013 | } |
| 3014 | ret = av_read_frame(ic, pkt); |
| 3015 | if (ret < 0) { |
| 3016 | if (ret == AVERROR_EOF || avio_feof(ic->pb)) |
| 3017 | eof = 1; |
| 3018 | if (ic->pb && ic->pb->error) |
| 3019 | break; |
| 3020 | SDL_LockMutex(wait_mutex); |
| 3021 | SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10); |
| 3022 | SDL_UnlockMutex(wait_mutex); |
| 3023 | continue; |
| 3024 | } |
| 3025 | /* check if packet is in play range specified by user, then queue, otherwise discard */ |
| 3026 | stream_start_time = ic->streams[pkt->stream_index]->start_time; |
| 3027 | pkt_in_play_range = duration == AV_NOPTS_VALUE || |
| 3028 | (pkt->pts - (stream_start_time != AV_NOPTS_VALUE ? stream_start_time : 0)) * |
| 3029 | av_q2d(ic->streams[pkt->stream_index]->time_base) - |
| 3030 | (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000 |
| 3031 | <= ((double)duration / 1000000); |
| 3032 | if (pkt->stream_index == is->audio_stream && pkt_in_play_range) { |
| 3033 | packet_queue_put(&is->audioq, pkt); |
| 3034 | } else if (pkt->stream_index == is->video_stream && pkt_in_play_range |
| 3035 | && !(is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC)) { |
| 3036 | packet_queue_put(&is->videoq, pkt); |
| 3037 | } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) { |
| 3038 | packet_queue_put(&is->subtitleq, pkt); |
| 3039 | } else { |
| 3040 | av_free_packet(pkt); |
| 3041 | } |
| 3042 | } |
| 3043 | /* wait until the end */ |
| 3044 | while (!is->abort_request) { |
| 3045 | SDL_Delay(100); |
| 3046 | } |
| 3047 | |
| 3048 | ret = 0; |
| 3049 | fail: |
| 3050 | /* close each stream */ |
| 3051 | if (is->audio_stream >= 0) |
| 3052 | stream_component_close(is, is->audio_stream); |
| 3053 | if (is->video_stream >= 0) |
| 3054 | stream_component_close(is, is->video_stream); |
| 3055 | if (is->subtitle_stream >= 0) |
| 3056 | stream_component_close(is, is->subtitle_stream); |
| 3057 | if (is->ic) { |
| 3058 | avformat_close_input(&is->ic); |
| 3059 | } |
| 3060 | |
| 3061 | if (ret != 0) { |
| 3062 | SDL_Event event; |
| 3063 | |
| 3064 | event.type = FF_QUIT_EVENT; |
| 3065 | event.user.data1 = is; |
| 3066 | SDL_PushEvent(&event); |
| 3067 | } |
| 3068 | SDL_DestroyMutex(wait_mutex); |
| 3069 | return 0; |
| 3070 | } |
| 3071 | |
| 3072 | static VideoState *stream_open(const char *filename, AVInputFormat *iformat) |
| 3073 | { |
| 3074 | VideoState *is; |
| 3075 | |
| 3076 | is = av_mallocz(sizeof(VideoState)); |
| 3077 | if (!is) |
| 3078 | return NULL; |
| 3079 | av_strlcpy(is->filename, filename, sizeof(is->filename)); |
| 3080 | is->iformat = iformat; |
| 3081 | is->ytop = 0; |
| 3082 | is->xleft = 0; |
| 3083 | |
| 3084 | /* start video display */ |
| 3085 | is->pictq_mutex = SDL_CreateMutex(); |
| 3086 | is->pictq_cond = SDL_CreateCond(); |
| 3087 | |
| 3088 | is->subpq_mutex = SDL_CreateMutex(); |
| 3089 | is->subpq_cond = SDL_CreateCond(); |
| 3090 | |
| 3091 | packet_queue_init(&is->videoq); |
| 3092 | packet_queue_init(&is->audioq); |
| 3093 | packet_queue_init(&is->subtitleq); |
| 3094 | |
| 3095 | is->continue_read_thread = SDL_CreateCond(); |
| 3096 | |
| 3097 | init_clock(&is->vidclk, &is->videoq.serial); |
| 3098 | init_clock(&is->audclk, &is->audioq.serial); |
| 3099 | init_clock(&is->extclk, &is->extclk.serial); |
| 3100 | is->audio_clock_serial = -1; |
| 3101 | is->audio_last_serial = -1; |
| 3102 | is->av_sync_type = av_sync_type; |
| 3103 | is->read_tid = SDL_CreateThread(read_thread, is); |
| 3104 | if (!is->read_tid) { |
| 3105 | av_free(is); |
| 3106 | return NULL; |
| 3107 | } |
| 3108 | return is; |
| 3109 | } |
| 3110 | |
| 3111 | static void stream_cycle_channel(VideoState *is, int codec_type) |
| 3112 | { |
| 3113 | AVFormatContext *ic = is->ic; |
| 3114 | int start_index, stream_index; |
| 3115 | int old_index; |
| 3116 | AVStream *st; |
| 3117 | AVProgram *p = NULL; |
| 3118 | int nb_streams = is->ic->nb_streams; |
| 3119 | |
| 3120 | if (codec_type == AVMEDIA_TYPE_VIDEO) { |
| 3121 | start_index = is->last_video_stream; |
| 3122 | old_index = is->video_stream; |
| 3123 | } else if (codec_type == AVMEDIA_TYPE_AUDIO) { |
| 3124 | start_index = is->last_audio_stream; |
| 3125 | old_index = is->audio_stream; |
| 3126 | } else { |
| 3127 | start_index = is->last_subtitle_stream; |
| 3128 | old_index = is->subtitle_stream; |
| 3129 | } |
| 3130 | stream_index = start_index; |
| 3131 | |
| 3132 | if (codec_type != AVMEDIA_TYPE_VIDEO && is->video_stream != -1) { |
| 3133 | p = av_find_program_from_stream(ic, NULL, is->video_stream); |
| 3134 | if (p) { |
| 3135 | nb_streams = p->nb_stream_indexes; |
| 3136 | for (start_index = 0; start_index < nb_streams; start_index++) |
| 3137 | if (p->stream_index[start_index] == stream_index) |
| 3138 | break; |
| 3139 | if (start_index == nb_streams) |
| 3140 | start_index = -1; |
| 3141 | stream_index = start_index; |
| 3142 | } |
| 3143 | } |
| 3144 | |
| 3145 | for (;;) { |
| 3146 | if (++stream_index >= nb_streams) |
| 3147 | { |
| 3148 | if (codec_type == AVMEDIA_TYPE_SUBTITLE) |
| 3149 | { |
| 3150 | stream_index = -1; |
| 3151 | is->last_subtitle_stream = -1; |
| 3152 | goto the_end; |
| 3153 | } |
| 3154 | if (start_index == -1) |
| 3155 | return; |
| 3156 | stream_index = 0; |
| 3157 | } |
| 3158 | if (stream_index == start_index) |
| 3159 | return; |
| 3160 | st = is->ic->streams[p ? p->stream_index[stream_index] : stream_index]; |
| 3161 | if (st->codec->codec_type == codec_type) { |
| 3162 | /* check that parameters are OK */ |
| 3163 | switch (codec_type) { |
| 3164 | case AVMEDIA_TYPE_AUDIO: |
| 3165 | if (st->codec->sample_rate != 0 && |
| 3166 | st->codec->channels != 0) |
| 3167 | goto the_end; |
| 3168 | break; |
| 3169 | case AVMEDIA_TYPE_VIDEO: |
| 3170 | case AVMEDIA_TYPE_SUBTITLE: |
| 3171 | goto the_end; |
| 3172 | default: |
| 3173 | break; |
| 3174 | } |
| 3175 | } |
| 3176 | } |
| 3177 | the_end: |
| 3178 | if (p && stream_index != -1) |
| 3179 | stream_index = p->stream_index[stream_index]; |
| 3180 | av_log(NULL, AV_LOG_INFO, "Switch %s stream from #%d to #%d\n", |
| 3181 | av_get_media_type_string(codec_type), |
| 3182 | old_index, |
| 3183 | stream_index); |
| 3184 | |
| 3185 | stream_component_close(is, old_index); |
| 3186 | stream_component_open(is, stream_index); |
| 3187 | } |
| 3188 | |
| 3189 | |
| 3190 | static void toggle_full_screen(VideoState *is) |
| 3191 | { |
| 3192 | #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14) |
| 3193 | /* OS X needs to reallocate the SDL overlays */ |
| 3194 | int i; |
| 3195 | for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) |
| 3196 | is->pictq[i].reallocate = 1; |
| 3197 | #endif |
| 3198 | is_full_screen = !is_full_screen; |
| 3199 | video_open(is, 1, NULL); |
| 3200 | } |
| 3201 | |
| 3202 | static void toggle_audio_display(VideoState *is) |
| 3203 | { |
| 3204 | int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); |
| 3205 | int next = is->show_mode; |
| 3206 | do { |
| 3207 | next = (next + 1) % SHOW_MODE_NB; |
| 3208 | } while (next != is->show_mode && (next == SHOW_MODE_VIDEO && !is->video_st || next != SHOW_MODE_VIDEO && !is->audio_st)); |
| 3209 | if (is->show_mode != next) { |
| 3210 | fill_rectangle(screen, |
| 3211 | is->xleft, is->ytop, is->width, is->height, |
| 3212 | bgcolor, 1); |
| 3213 | is->force_refresh = 1; |
| 3214 | is->show_mode = next; |
| 3215 | } |
| 3216 | } |
| 3217 | |
| 3218 | static void refresh_loop_wait_event(VideoState *is, SDL_Event *event) { |
| 3219 | double remaining_time = 0.0; |
| 3220 | SDL_PumpEvents(); |
| 3221 | while (!SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS)) { |
| 3222 | if (!cursor_hidden && av_gettime_relative() - cursor_last_shown > CURSOR_HIDE_DELAY) { |
| 3223 | SDL_ShowCursor(0); |
| 3224 | cursor_hidden = 1; |
| 3225 | } |
| 3226 | if (remaining_time > 0.0) |
| 3227 | av_usleep((int64_t)(remaining_time * 1000000.0)); |
| 3228 | remaining_time = REFRESH_RATE; |
| 3229 | if (is->show_mode != SHOW_MODE_NONE && (!is->paused || is->force_refresh)) |
| 3230 | video_refresh(is, &remaining_time); |
| 3231 | SDL_PumpEvents(); |
| 3232 | } |
| 3233 | } |
| 3234 | |
| 3235 | static void seek_chapter(VideoState *is, int incr) |
| 3236 | { |
| 3237 | int64_t pos = get_master_clock(is) * AV_TIME_BASE; |
| 3238 | int i; |
| 3239 | |
| 3240 | if (!is->ic->nb_chapters) |
| 3241 | return; |
| 3242 | |
| 3243 | /* find the current chapter */ |
| 3244 | for (i = 0; i < is->ic->nb_chapters; i++) { |
| 3245 | AVChapter *ch = is->ic->chapters[i]; |
| 3246 | if (av_compare_ts(pos, AV_TIME_BASE_Q, ch->start, ch->time_base) < 0) { |
| 3247 | i--; |
| 3248 | break; |
| 3249 | } |
| 3250 | } |
| 3251 | |
| 3252 | i += incr; |
| 3253 | i = FFMAX(i, 0); |
| 3254 | if (i >= is->ic->nb_chapters) |
| 3255 | return; |
| 3256 | |
| 3257 | av_log(NULL, AV_LOG_VERBOSE, "Seeking to chapter %d.\n", i); |
| 3258 | stream_seek(is, av_rescale_q(is->ic->chapters[i]->start, is->ic->chapters[i]->time_base, |
| 3259 | AV_TIME_BASE_Q), 0, 0); |
| 3260 | } |
| 3261 | |
| 3262 | /* handle an event sent by the GUI */ |
| 3263 | static void event_loop(VideoState *cur_stream) |
| 3264 | { |
| 3265 | SDL_Event event; |
| 3266 | double incr, pos, frac; |
| 3267 | |
| 3268 | for (;;) { |
| 3269 | double x; |
| 3270 | refresh_loop_wait_event(cur_stream, &event); |
| 3271 | switch (event.type) { |
| 3272 | case SDL_KEYDOWN: |
| 3273 | if (exit_on_keydown) { |
| 3274 | do_exit(cur_stream); |
| 3275 | break; |
| 3276 | } |
| 3277 | switch (event.key.keysym.sym) { |
| 3278 | case SDLK_ESCAPE: |
| 3279 | case SDLK_q: |
| 3280 | do_exit(cur_stream); |
| 3281 | break; |
| 3282 | case SDLK_f: |
| 3283 | toggle_full_screen(cur_stream); |
| 3284 | cur_stream->force_refresh = 1; |
| 3285 | break; |
| 3286 | case SDLK_p: |
| 3287 | case SDLK_SPACE: |
| 3288 | toggle_pause(cur_stream); |
| 3289 | break; |
| 3290 | case SDLK_s: // S: Step to next frame |
| 3291 | step_to_next_frame(cur_stream); |
| 3292 | break; |
| 3293 | case SDLK_a: |
| 3294 | stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO); |
| 3295 | break; |
| 3296 | case SDLK_v: |
| 3297 | stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO); |
| 3298 | break; |
| 3299 | case SDLK_c: |
| 3300 | stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO); |
| 3301 | stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO); |
| 3302 | stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE); |
| 3303 | break; |
| 3304 | case SDLK_t: |
| 3305 | stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE); |
| 3306 | break; |
| 3307 | case SDLK_w: |
| 3308 | #if CONFIG_AVFILTER |
| 3309 | if (cur_stream->show_mode == SHOW_MODE_VIDEO && cur_stream->vfilter_idx < nb_vfilters - 1) { |
| 3310 | if (++cur_stream->vfilter_idx >= nb_vfilters) |
| 3311 | cur_stream->vfilter_idx = 0; |
| 3312 | } else { |
| 3313 | cur_stream->vfilter_idx = 0; |
| 3314 | toggle_audio_display(cur_stream); |
| 3315 | } |
| 3316 | #else |
| 3317 | toggle_audio_display(cur_stream); |
| 3318 | #endif |
| 3319 | break; |
| 3320 | case SDLK_PAGEUP: |
| 3321 | if (cur_stream->ic->nb_chapters <= 1) { |
| 3322 | incr = 600.0; |
| 3323 | goto do_seek; |
| 3324 | } |
| 3325 | seek_chapter(cur_stream, 1); |
| 3326 | break; |
| 3327 | case SDLK_PAGEDOWN: |
| 3328 | if (cur_stream->ic->nb_chapters <= 1) { |
| 3329 | incr = -600.0; |
| 3330 | goto do_seek; |
| 3331 | } |
| 3332 | seek_chapter(cur_stream, -1); |
| 3333 | break; |
| 3334 | case SDLK_LEFT: |
| 3335 | incr = -10.0; |
| 3336 | goto do_seek; |
| 3337 | case SDLK_RIGHT: |
| 3338 | incr = 10.0; |
| 3339 | goto do_seek; |
| 3340 | case SDLK_UP: |
| 3341 | incr = 60.0; |
| 3342 | goto do_seek; |
| 3343 | case SDLK_DOWN: |
| 3344 | incr = -60.0; |
| 3345 | do_seek: |
| 3346 | if (seek_by_bytes) { |
| 3347 | if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) { |
| 3348 | pos = cur_stream->video_current_pos; |
| 3349 | } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) { |
| 3350 | pos = cur_stream->audio_pkt.pos; |
| 3351 | } else |
| 3352 | pos = avio_tell(cur_stream->ic->pb); |
| 3353 | if (cur_stream->ic->bit_rate) |
| 3354 | incr *= cur_stream->ic->bit_rate / 8.0; |
| 3355 | else |
| 3356 | incr *= 180000.0; |
| 3357 | pos += incr; |
| 3358 | stream_seek(cur_stream, pos, incr, 1); |
| 3359 | } else { |
| 3360 | pos = get_master_clock(cur_stream); |
| 3361 | if (isnan(pos)) |
| 3362 | pos = (double)cur_stream->seek_pos / AV_TIME_BASE; |
| 3363 | pos += incr; |
| 3364 | if (cur_stream->ic->start_time != AV_NOPTS_VALUE && pos < cur_stream->ic->start_time / (double)AV_TIME_BASE) |
| 3365 | pos = cur_stream->ic->start_time / (double)AV_TIME_BASE; |
| 3366 | stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0); |
| 3367 | } |
| 3368 | break; |
| 3369 | default: |
| 3370 | break; |
| 3371 | } |
| 3372 | break; |
| 3373 | case SDL_VIDEOEXPOSE: |
| 3374 | cur_stream->force_refresh = 1; |
| 3375 | break; |
| 3376 | case SDL_MOUSEBUTTONDOWN: |
| 3377 | if (exit_on_mousedown) { |
| 3378 | do_exit(cur_stream); |
| 3379 | break; |
| 3380 | } |
| 3381 | case SDL_MOUSEMOTION: |
| 3382 | if (cursor_hidden) { |
| 3383 | SDL_ShowCursor(1); |
| 3384 | cursor_hidden = 0; |
| 3385 | } |
| 3386 | cursor_last_shown = av_gettime_relative(); |
| 3387 | if (event.type == SDL_MOUSEBUTTONDOWN) { |
| 3388 | x = event.button.x; |
| 3389 | } else { |
| 3390 | if (event.motion.state != SDL_PRESSED) |
| 3391 | break; |
| 3392 | x = event.motion.x; |
| 3393 | } |
| 3394 | if (seek_by_bytes || cur_stream->ic->duration <= 0) { |
| 3395 | uint64_t size = avio_size(cur_stream->ic->pb); |
| 3396 | stream_seek(cur_stream, size*x/cur_stream->width, 0, 1); |
| 3397 | } else { |
| 3398 | int64_t ts; |
| 3399 | int ns, hh, mm, ss; |
| 3400 | int tns, thh, tmm, tss; |
| 3401 | tns = cur_stream->ic->duration / 1000000LL; |
| 3402 | thh = tns / 3600; |
| 3403 | tmm = (tns % 3600) / 60; |
| 3404 | tss = (tns % 60); |
| 3405 | frac = x / cur_stream->width; |
| 3406 | ns = frac * tns; |
| 3407 | hh = ns / 3600; |
| 3408 | mm = (ns % 3600) / 60; |
| 3409 | ss = (ns % 60); |
| 3410 | av_log(NULL, AV_LOG_INFO, |
| 3411 | "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100, |
| 3412 | hh, mm, ss, thh, tmm, tss); |
| 3413 | ts = frac * cur_stream->ic->duration; |
| 3414 | if (cur_stream->ic->start_time != AV_NOPTS_VALUE) |
| 3415 | ts += cur_stream->ic->start_time; |
| 3416 | stream_seek(cur_stream, ts, 0, 0); |
| 3417 | } |
| 3418 | break; |
| 3419 | case SDL_VIDEORESIZE: |
| 3420 | screen = SDL_SetVideoMode(FFMIN(16383, event.resize.w), event.resize.h, 0, |
| 3421 | SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL); |
| 3422 | if (!screen) { |
| 3423 | av_log(NULL, AV_LOG_FATAL, "Failed to set video mode\n"); |
| 3424 | do_exit(cur_stream); |
| 3425 | } |
| 3426 | screen_width = cur_stream->width = screen->w; |
| 3427 | screen_height = cur_stream->height = screen->h; |
| 3428 | cur_stream->force_refresh = 1; |
| 3429 | break; |
| 3430 | case SDL_QUIT: |
| 3431 | case FF_QUIT_EVENT: |
| 3432 | do_exit(cur_stream); |
| 3433 | break; |
| 3434 | case FF_ALLOC_EVENT: |
| 3435 | alloc_picture(event.user.data1); |
| 3436 | break; |
| 3437 | default: |
| 3438 | break; |
| 3439 | } |
| 3440 | } |
| 3441 | } |
| 3442 | |
| 3443 | static int opt_frame_size(void *optctx, const char *opt, const char *arg) |
| 3444 | { |
| 3445 | av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n"); |
| 3446 | return opt_default(NULL, "video_size", arg); |
| 3447 | } |
| 3448 | |
| 3449 | static int opt_width(void *optctx, const char *opt, const char *arg) |
| 3450 | { |
| 3451 | screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); |
| 3452 | return 0; |
| 3453 | } |
| 3454 | |
| 3455 | static int opt_height(void *optctx, const char *opt, const char *arg) |
| 3456 | { |
| 3457 | screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); |
| 3458 | return 0; |
| 3459 | } |
| 3460 | |
| 3461 | static int opt_format(void *optctx, const char *opt, const char *arg) |
| 3462 | { |
| 3463 | file_iformat = av_find_input_format(arg); |
| 3464 | if (!file_iformat) { |
| 3465 | av_log(NULL, AV_LOG_FATAL, "Unknown input format: %s\n", arg); |
| 3466 | return AVERROR(EINVAL); |
| 3467 | } |
| 3468 | return 0; |
| 3469 | } |
| 3470 | |
| 3471 | static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg) |
| 3472 | { |
| 3473 | av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n"); |
| 3474 | return opt_default(NULL, "pixel_format", arg); |
| 3475 | } |
| 3476 | |
| 3477 | static int opt_sync(void *optctx, const char *opt, const char *arg) |
| 3478 | { |
| 3479 | if (!strcmp(arg, "audio")) |
| 3480 | av_sync_type = AV_SYNC_AUDIO_MASTER; |
| 3481 | else if (!strcmp(arg, "video")) |
| 3482 | av_sync_type = AV_SYNC_VIDEO_MASTER; |
| 3483 | else if (!strcmp(arg, "ext")) |
| 3484 | av_sync_type = AV_SYNC_EXTERNAL_CLOCK; |
| 3485 | else { |
| 3486 | av_log(NULL, AV_LOG_ERROR, "Unknown value for %s: %s\n", opt, arg); |
| 3487 | exit(1); |
| 3488 | } |
| 3489 | return 0; |
| 3490 | } |
| 3491 | |
| 3492 | static int opt_seek(void *optctx, const char *opt, const char *arg) |
| 3493 | { |
| 3494 | start_time = parse_time_or_die(opt, arg, 1); |
| 3495 | return 0; |
| 3496 | } |
| 3497 | |
| 3498 | static int opt_duration(void *optctx, const char *opt, const char *arg) |
| 3499 | { |
| 3500 | duration = parse_time_or_die(opt, arg, 1); |
| 3501 | return 0; |
| 3502 | } |
| 3503 | |
| 3504 | static int opt_show_mode(void *optctx, const char *opt, const char *arg) |
| 3505 | { |
| 3506 | show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO : |
| 3507 | !strcmp(arg, "waves") ? SHOW_MODE_WAVES : |
| 3508 | !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT : |
| 3509 | parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1); |
| 3510 | return 0; |
| 3511 | } |
| 3512 | |
| 3513 | static void opt_input_file(void *optctx, const char *filename) |
| 3514 | { |
| 3515 | if (input_filename) { |
| 3516 | av_log(NULL, AV_LOG_FATAL, |
| 3517 | "Argument '%s' provided as input filename, but '%s' was already specified.\n", |
| 3518 | filename, input_filename); |
| 3519 | exit(1); |
| 3520 | } |
| 3521 | if (!strcmp(filename, "-")) |
| 3522 | filename = "pipe:"; |
| 3523 | input_filename = filename; |
| 3524 | } |
| 3525 | |
| 3526 | static int opt_codec(void *optctx, const char *opt, const char *arg) |
| 3527 | { |
| 3528 | const char *spec = strchr(opt, ':'); |
| 3529 | if (!spec) { |
| 3530 | av_log(NULL, AV_LOG_ERROR, |
| 3531 | "No media specifier was specified in '%s' in option '%s'\n", |
| 3532 | arg, opt); |
| 3533 | return AVERROR(EINVAL); |
| 3534 | } |
| 3535 | spec++; |
| 3536 | switch (spec[0]) { |
| 3537 | case 'a' : audio_codec_name = arg; break; |
| 3538 | case 's' : subtitle_codec_name = arg; break; |
| 3539 | case 'v' : video_codec_name = arg; break; |
| 3540 | default: |
| 3541 | av_log(NULL, AV_LOG_ERROR, |
| 3542 | "Invalid media specifier '%s' in option '%s'\n", spec, opt); |
| 3543 | return AVERROR(EINVAL); |
| 3544 | } |
| 3545 | return 0; |
| 3546 | } |
| 3547 | |
| 3548 | static int dummy; |
| 3549 | |
| 3550 | static const OptionDef options[] = { |
| 3551 | #include "cmdutils_common_opts.h" |
| 3552 | { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" }, |
| 3553 | { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" }, |
| 3554 | { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" }, |
| 3555 | { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" }, |
| 3556 | { "an", OPT_BOOL, { &audio_disable }, "disable audio" }, |
| 3557 | { "vn", OPT_BOOL, { &video_disable }, "disable video" }, |
| 3558 | { "sn", OPT_BOOL, { &subtitle_disable }, "disable subtitling" }, |
| 3559 | { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" }, |
| 3560 | { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" }, |
| 3561 | { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" }, |
| 3562 | { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" }, |
| 3563 | { "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" }, |
| 3564 | { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" }, |
| 3565 | { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" }, |
| 3566 | { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" }, |
| 3567 | { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" }, |
| 3568 | { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" }, |
| 3569 | { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { &workaround_bugs }, "workaround bugs", "" }, |
| 3570 | { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" }, |
| 3571 | { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" }, |
| 3572 | { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""}, |
| 3573 | { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { &lowres }, "", "" }, |
| 3574 | { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" }, |
| 3575 | { "autoexit", OPT_BOOL | OPT_EXPERT, { &autoexit }, "exit at the end", "" }, |
| 3576 | { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" }, |
| 3577 | { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" }, |
| 3578 | { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" }, |
| 3579 | { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" }, |
| 3580 | { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" }, |
| 3581 | { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" }, |
| 3582 | #if CONFIG_AVFILTER |
| 3583 | { "vf", OPT_EXPERT | HAS_ARG, { .func_arg = opt_add_vfilter }, "set video filters", "filter_graph" }, |
| 3584 | { "af", OPT_STRING | HAS_ARG, { &afilters }, "set audio filters", "filter_graph" }, |
| 3585 | #endif |
| 3586 | { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" }, |
| 3587 | { "showmode", HAS_ARG, { .func_arg = opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" }, |
| 3588 | { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { .func_arg = opt_default }, "generic catch all option", "" }, |
| 3589 | { "i", OPT_BOOL, { &dummy}, "read specified file", "input_file"}, |
| 3590 | { "codec", HAS_ARG, { .func_arg = opt_codec}, "force decoder", "decoder_name" }, |
| 3591 | { "acodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &audio_codec_name }, "force audio decoder", "decoder_name" }, |
| 3592 | { "scodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &subtitle_codec_name }, "force subtitle decoder", "decoder_name" }, |
| 3593 | { "vcodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &video_codec_name }, "force video decoder", "decoder_name" }, |
| 3594 | { "autorotate", OPT_BOOL, { &autorotate }, "automatically rotate video", "" }, |
| 3595 | { NULL, }, |
| 3596 | }; |
| 3597 | |
| 3598 | static void show_usage(void) |
| 3599 | { |
| 3600 | av_log(NULL, AV_LOG_INFO, "Simple media player\n"); |
| 3601 | av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name); |
| 3602 | av_log(NULL, AV_LOG_INFO, "\n"); |
| 3603 | } |
| 3604 | |
| 3605 | void show_help_default(const char *opt, const char *arg) |
| 3606 | { |
| 3607 | av_log_set_callback(log_callback_help); |
| 3608 | show_usage(); |
| 3609 | show_help_options(options, "Main options:", 0, OPT_EXPERT, 0); |
| 3610 | show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0); |
| 3611 | printf("\n"); |
| 3612 | show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM); |
| 3613 | show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM); |
| 3614 | #if !CONFIG_AVFILTER |
| 3615 | show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM); |
| 3616 | #else |
| 3617 | show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM); |
| 3618 | #endif |
| 3619 | printf("\nWhile playing:\n" |
| 3620 | "q, ESC quit\n" |
| 3621 | "f toggle full screen\n" |
| 3622 | "p, SPC pause\n" |
| 3623 | "a cycle audio channel in the current program\n" |
| 3624 | "v cycle video channel\n" |
| 3625 | "t cycle subtitle channel in the current program\n" |
| 3626 | "c cycle program\n" |
| 3627 | "w cycle video filters or show modes\n" |
| 3628 | "s activate frame-step mode\n" |
| 3629 | "left/right seek backward/forward 10 seconds\n" |
| 3630 | "down/up seek backward/forward 1 minute\n" |
| 3631 | "page down/page up seek backward/forward 10 minutes\n" |
| 3632 | "mouse click seek to percentage in file corresponding to fraction of width\n" |
| 3633 | ); |
| 3634 | } |
| 3635 | |
| 3636 | static int lockmgr(void **mtx, enum AVLockOp op) |
| 3637 | { |
| 3638 | switch(op) { |
| 3639 | case AV_LOCK_CREATE: |
| 3640 | *mtx = SDL_CreateMutex(); |
| 3641 | if(!*mtx) |
| 3642 | return 1; |
| 3643 | return 0; |
| 3644 | case AV_LOCK_OBTAIN: |
| 3645 | return !!SDL_LockMutex(*mtx); |
| 3646 | case AV_LOCK_RELEASE: |
| 3647 | return !!SDL_UnlockMutex(*mtx); |
| 3648 | case AV_LOCK_DESTROY: |
| 3649 | SDL_DestroyMutex(*mtx); |
| 3650 | return 0; |
| 3651 | } |
| 3652 | return 1; |
| 3653 | } |
| 3654 | |
| 3655 | /* Called from the main */ |
| 3656 | int main(int argc, char **argv) |
| 3657 | { |
| 3658 | int flags; |
| 3659 | VideoState *is; |
| 3660 | char dummy_videodriver[] = "SDL_VIDEODRIVER=dummy"; |
| 3661 | |
| 3662 | av_log_set_flags(AV_LOG_SKIP_REPEATED); |
| 3663 | parse_loglevel(argc, argv, options); |
| 3664 | |
| 3665 | /* register all codecs, demux and protocols */ |
| 3666 | #if CONFIG_AVDEVICE |
| 3667 | avdevice_register_all(); |
| 3668 | #endif |
| 3669 | #if CONFIG_AVFILTER |
| 3670 | avfilter_register_all(); |
| 3671 | #endif |
| 3672 | av_register_all(); |
| 3673 | avformat_network_init(); |
| 3674 | |
| 3675 | init_opts(); |
| 3676 | |
| 3677 | signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */ |
| 3678 | signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */ |
| 3679 | |
| 3680 | show_banner(argc, argv, options); |
| 3681 | |
| 3682 | parse_options(NULL, argc, argv, options, opt_input_file); |
| 3683 | |
| 3684 | if (!input_filename) { |
| 3685 | show_usage(); |
| 3686 | av_log(NULL, AV_LOG_FATAL, "An input file must be specified\n"); |
| 3687 | av_log(NULL, AV_LOG_FATAL, |
| 3688 | "Use -h to get full help or, even better, run 'man %s'\n", program_name); |
| 3689 | exit(1); |
| 3690 | } |
| 3691 | |
| 3692 | if (display_disable) { |
| 3693 | video_disable = 1; |
| 3694 | } |
| 3695 | flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER; |
| 3696 | if (audio_disable) |
| 3697 | flags &= ~SDL_INIT_AUDIO; |
| 3698 | if (display_disable) |
| 3699 | SDL_putenv(dummy_videodriver); /* For the event queue, we always need a video driver. */ |
| 3700 | #if !defined(_WIN32) && !defined(__APPLE__) |
| 3701 | flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */ |
| 3702 | #endif |
| 3703 | if (SDL_Init (flags)) { |
| 3704 | av_log(NULL, AV_LOG_FATAL, "Could not initialize SDL - %s\n", SDL_GetError()); |
| 3705 | av_log(NULL, AV_LOG_FATAL, "(Did you set the DISPLAY variable?)\n"); |
| 3706 | exit(1); |
| 3707 | } |
| 3708 | |
| 3709 | if (!display_disable) { |
| 3710 | const SDL_VideoInfo *vi = SDL_GetVideoInfo(); |
| 3711 | fs_screen_width = vi->current_w; |
| 3712 | fs_screen_height = vi->current_h; |
| 3713 | } |
| 3714 | |
| 3715 | SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE); |
| 3716 | SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE); |
| 3717 | SDL_EventState(SDL_USEREVENT, SDL_IGNORE); |
| 3718 | |
| 3719 | if (av_lockmgr_register(lockmgr)) { |
| 3720 | av_log(NULL, AV_LOG_FATAL, "Could not initialize lock manager!\n"); |
| 3721 | do_exit(NULL); |
| 3722 | } |
| 3723 | |
| 3724 | av_init_packet(&flush_pkt); |
| 3725 | flush_pkt.data = (uint8_t *)&flush_pkt; |
| 3726 | |
| 3727 | is = stream_open(input_filename, file_iformat); |
| 3728 | if (!is) { |
| 3729 | av_log(NULL, AV_LOG_FATAL, "Failed to initialize VideoState!\n"); |
| 3730 | do_exit(NULL); |
| 3731 | } |
| 3732 | |
| 3733 | event_loop(is); |
| 3734 | |
| 3735 | /* never returns */ |
| 3736 | |
| 3737 | return 0; |
| 3738 | } |