| 1 | /* |
| 2 | * Image format |
| 3 | * Copyright (c) 2000, 2001, 2002 Fabrice Bellard |
| 4 | * Copyright (c) 2004 Michael Niedermayer |
| 5 | * |
| 6 | * This file is part of FFmpeg. |
| 7 | * |
| 8 | * FFmpeg is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU Lesser General Public |
| 10 | * License as published by the Free Software Foundation; either |
| 11 | * version 2.1 of the License, or (at your option) any later version. |
| 12 | * |
| 13 | * FFmpeg is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * Lesser General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Lesser General Public |
| 19 | * License along with FFmpeg; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 21 | */ |
| 22 | |
| 23 | #define _BSD_SOURCE |
| 24 | #include <sys/stat.h> |
| 25 | #include "libavutil/avstring.h" |
| 26 | #include "libavutil/log.h" |
| 27 | #include "libavutil/opt.h" |
| 28 | #include "libavutil/pixdesc.h" |
| 29 | #include "libavutil/parseutils.h" |
| 30 | #include "libavutil/intreadwrite.h" |
| 31 | #include "avformat.h" |
| 32 | #include "avio_internal.h" |
| 33 | #include "internal.h" |
| 34 | #include "img2.h" |
| 35 | |
| 36 | #if HAVE_GLOB |
| 37 | /* Locally define as 0 (bitwise-OR no-op) any missing glob options that |
| 38 | are non-posix glibc/bsd extensions. */ |
| 39 | #ifndef GLOB_NOMAGIC |
| 40 | #define GLOB_NOMAGIC 0 |
| 41 | #endif |
| 42 | #ifndef GLOB_BRACE |
| 43 | #define GLOB_BRACE 0 |
| 44 | #endif |
| 45 | |
| 46 | #endif /* HAVE_GLOB */ |
| 47 | |
| 48 | static const int sizes[][2] = { |
| 49 | { 640, 480 }, |
| 50 | { 720, 480 }, |
| 51 | { 720, 576 }, |
| 52 | { 352, 288 }, |
| 53 | { 352, 240 }, |
| 54 | { 160, 128 }, |
| 55 | { 512, 384 }, |
| 56 | { 640, 352 }, |
| 57 | { 640, 240 }, |
| 58 | }; |
| 59 | |
| 60 | static int infer_size(int *width_ptr, int *height_ptr, int size) |
| 61 | { |
| 62 | int i; |
| 63 | |
| 64 | for (i = 0; i < FF_ARRAY_ELEMS(sizes); i++) { |
| 65 | if ((sizes[i][0] * sizes[i][1]) == size) { |
| 66 | *width_ptr = sizes[i][0]; |
| 67 | *height_ptr = sizes[i][1]; |
| 68 | return 0; |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | return -1; |
| 73 | } |
| 74 | |
| 75 | static int is_glob(const char *path) |
| 76 | { |
| 77 | #if HAVE_GLOB |
| 78 | size_t span = 0; |
| 79 | const char *p = path; |
| 80 | |
| 81 | while (p = strchr(p, '%')) { |
| 82 | if (*(++p) == '%') { |
| 83 | ++p; |
| 84 | continue; |
| 85 | } |
| 86 | if (span = strspn(p, "*?[]{}")) |
| 87 | break; |
| 88 | } |
| 89 | /* Did we hit a glob char or get to the end? */ |
| 90 | return span != 0; |
| 91 | #else |
| 92 | return 0; |
| 93 | #endif |
| 94 | } |
| 95 | |
| 96 | /** |
| 97 | * Get index range of image files matched by path. |
| 98 | * |
| 99 | * @param pfirst_index pointer to index updated with the first number in the range |
| 100 | * @param plast_index pointer to index updated with the last number in the range |
| 101 | * @param path path which has to be matched by the image files in the range |
| 102 | * @param start_index minimum accepted value for the first index in the range |
| 103 | * @return -1 if no image file could be found |
| 104 | */ |
| 105 | static int find_image_range(int *pfirst_index, int *plast_index, |
| 106 | const char *path, int start_index, int start_index_range) |
| 107 | { |
| 108 | char buf[1024]; |
| 109 | int range, last_index, range1, first_index; |
| 110 | |
| 111 | /* find the first image */ |
| 112 | for (first_index = start_index; first_index < start_index + start_index_range; first_index++) { |
| 113 | if (av_get_frame_filename(buf, sizeof(buf), path, first_index) < 0) { |
| 114 | *pfirst_index = |
| 115 | *plast_index = 1; |
| 116 | if (avio_check(buf, AVIO_FLAG_READ) > 0) |
| 117 | return 0; |
| 118 | return -1; |
| 119 | } |
| 120 | if (avio_check(buf, AVIO_FLAG_READ) > 0) |
| 121 | break; |
| 122 | } |
| 123 | if (first_index == start_index + start_index_range) |
| 124 | goto fail; |
| 125 | |
| 126 | /* find the last image */ |
| 127 | last_index = first_index; |
| 128 | for (;;) { |
| 129 | range = 0; |
| 130 | for (;;) { |
| 131 | if (!range) |
| 132 | range1 = 1; |
| 133 | else |
| 134 | range1 = 2 * range; |
| 135 | if (av_get_frame_filename(buf, sizeof(buf), path, |
| 136 | last_index + range1) < 0) |
| 137 | goto fail; |
| 138 | if (avio_check(buf, AVIO_FLAG_READ) <= 0) |
| 139 | break; |
| 140 | range = range1; |
| 141 | /* just in case... */ |
| 142 | if (range >= (1 << 30)) |
| 143 | goto fail; |
| 144 | } |
| 145 | /* we are sure than image last_index + range exists */ |
| 146 | if (!range) |
| 147 | break; |
| 148 | last_index += range; |
| 149 | } |
| 150 | *pfirst_index = first_index; |
| 151 | *plast_index = last_index; |
| 152 | return 0; |
| 153 | |
| 154 | fail: |
| 155 | return -1; |
| 156 | } |
| 157 | |
| 158 | static int img_read_probe(AVProbeData *p) |
| 159 | { |
| 160 | if (p->filename && ff_guess_image2_codec(p->filename)) { |
| 161 | if (av_filename_number_test(p->filename)) |
| 162 | return AVPROBE_SCORE_MAX; |
| 163 | else if (is_glob(p->filename)) |
| 164 | return AVPROBE_SCORE_MAX; |
| 165 | else if (p->filename[strcspn(p->filename, "*?{")]) // probably PT_GLOB |
| 166 | return AVPROBE_SCORE_EXTENSION + 2; // score chosen to be a tad above the image pipes |
| 167 | else if (p->buf_size == 0) |
| 168 | return 0; |
| 169 | else if (av_match_ext(p->filename, "raw") || av_match_ext(p->filename, "gif")) |
| 170 | return 5; |
| 171 | else |
| 172 | return AVPROBE_SCORE_EXTENSION; |
| 173 | } |
| 174 | return 0; |
| 175 | } |
| 176 | |
| 177 | int ff_img_read_header(AVFormatContext *s1) |
| 178 | { |
| 179 | VideoDemuxData *s = s1->priv_data; |
| 180 | int first_index, last_index; |
| 181 | AVStream *st; |
| 182 | enum AVPixelFormat pix_fmt = AV_PIX_FMT_NONE; |
| 183 | |
| 184 | s1->ctx_flags |= AVFMTCTX_NOHEADER; |
| 185 | |
| 186 | st = avformat_new_stream(s1, NULL); |
| 187 | if (!st) { |
| 188 | return AVERROR(ENOMEM); |
| 189 | } |
| 190 | |
| 191 | if (s->pixel_format && |
| 192 | (pix_fmt = av_get_pix_fmt(s->pixel_format)) == AV_PIX_FMT_NONE) { |
| 193 | av_log(s1, AV_LOG_ERROR, "No such pixel format: %s.\n", |
| 194 | s->pixel_format); |
| 195 | return AVERROR(EINVAL); |
| 196 | } |
| 197 | |
| 198 | av_strlcpy(s->path, s1->filename, sizeof(s->path)); |
| 199 | s->img_number = 0; |
| 200 | s->img_count = 0; |
| 201 | |
| 202 | /* find format */ |
| 203 | if (s1->iformat->flags & AVFMT_NOFILE) |
| 204 | s->is_pipe = 0; |
| 205 | else { |
| 206 | s->is_pipe = 1; |
| 207 | st->need_parsing = AVSTREAM_PARSE_FULL; |
| 208 | } |
| 209 | |
| 210 | if (s->ts_from_file == 2) { |
| 211 | #if !HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC |
| 212 | av_log(s1, AV_LOG_ERROR, "POSIX.1-2008 not supported, nanosecond file timestamps unavailable\n"); |
| 213 | return AVERROR(ENOSYS); |
| 214 | #endif |
| 215 | avpriv_set_pts_info(st, 64, 1, 1000000000); |
| 216 | } else if (s->ts_from_file) |
| 217 | avpriv_set_pts_info(st, 64, 1, 1); |
| 218 | else |
| 219 | avpriv_set_pts_info(st, 64, s->framerate.den, s->framerate.num); |
| 220 | |
| 221 | if (s->width && s->height) { |
| 222 | st->codec->width = s->width; |
| 223 | st->codec->height = s->height; |
| 224 | } |
| 225 | |
| 226 | if (!s->is_pipe) { |
| 227 | if (s->pattern_type == PT_GLOB_SEQUENCE) { |
| 228 | s->use_glob = is_glob(s->path); |
| 229 | if (s->use_glob) { |
| 230 | char *p = s->path, *q, *dup; |
| 231 | int gerr; |
| 232 | |
| 233 | av_log(s1, AV_LOG_WARNING, "Pattern type 'glob_sequence' is deprecated: " |
| 234 | "use pattern_type 'glob' instead\n"); |
| 235 | #if HAVE_GLOB |
| 236 | dup = q = av_strdup(p); |
| 237 | while (*q) { |
| 238 | /* Do we have room for the next char and a \ insertion? */ |
| 239 | if ((p - s->path) >= (sizeof(s->path) - 2)) |
| 240 | break; |
| 241 | if (*q == '%' && strspn(q + 1, "%*?[]{}")) |
| 242 | ++q; |
| 243 | else if (strspn(q, "\\*?[]{}")) |
| 244 | *p++ = '\\'; |
| 245 | *p++ = *q++; |
| 246 | } |
| 247 | *p = 0; |
| 248 | av_free(dup); |
| 249 | |
| 250 | gerr = glob(s->path, GLOB_NOCHECK|GLOB_BRACE|GLOB_NOMAGIC, NULL, &s->globstate); |
| 251 | if (gerr != 0) { |
| 252 | return AVERROR(ENOENT); |
| 253 | } |
| 254 | first_index = 0; |
| 255 | last_index = s->globstate.gl_pathc - 1; |
| 256 | #endif |
| 257 | } |
| 258 | } |
| 259 | if ((s->pattern_type == PT_GLOB_SEQUENCE && !s->use_glob) || s->pattern_type == PT_SEQUENCE) { |
| 260 | if (find_image_range(&first_index, &last_index, s->path, |
| 261 | s->start_number, s->start_number_range) < 0) { |
| 262 | av_log(s1, AV_LOG_ERROR, |
| 263 | "Could find no file with path '%s' and index in the range %d-%d\n", |
| 264 | s->path, s->start_number, s->start_number + s->start_number_range - 1); |
| 265 | return AVERROR(ENOENT); |
| 266 | } |
| 267 | } else if (s->pattern_type == PT_GLOB) { |
| 268 | #if HAVE_GLOB |
| 269 | int gerr; |
| 270 | gerr = glob(s->path, GLOB_NOCHECK|GLOB_BRACE|GLOB_NOMAGIC, NULL, &s->globstate); |
| 271 | if (gerr != 0) { |
| 272 | return AVERROR(ENOENT); |
| 273 | } |
| 274 | first_index = 0; |
| 275 | last_index = s->globstate.gl_pathc - 1; |
| 276 | s->use_glob = 1; |
| 277 | #else |
| 278 | av_log(s1, AV_LOG_ERROR, |
| 279 | "Pattern type 'glob' was selected but globbing " |
| 280 | "is not supported by this libavformat build\n"); |
| 281 | return AVERROR(ENOSYS); |
| 282 | #endif |
| 283 | } else if (s->pattern_type != PT_GLOB_SEQUENCE) { |
| 284 | av_log(s1, AV_LOG_ERROR, |
| 285 | "Unknown value '%d' for pattern_type option\n", s->pattern_type); |
| 286 | return AVERROR(EINVAL); |
| 287 | } |
| 288 | s->img_first = first_index; |
| 289 | s->img_last = last_index; |
| 290 | s->img_number = first_index; |
| 291 | /* compute duration */ |
| 292 | if (!s->ts_from_file) { |
| 293 | st->start_time = 0; |
| 294 | st->duration = last_index - first_index + 1; |
| 295 | } |
| 296 | } |
| 297 | |
| 298 | if (s1->video_codec_id) { |
| 299 | st->codec->codec_type = AVMEDIA_TYPE_VIDEO; |
| 300 | st->codec->codec_id = s1->video_codec_id; |
| 301 | } else if (s1->audio_codec_id) { |
| 302 | st->codec->codec_type = AVMEDIA_TYPE_AUDIO; |
| 303 | st->codec->codec_id = s1->audio_codec_id; |
| 304 | } else if (s1->iformat->raw_codec_id) { |
| 305 | st->codec->codec_type = AVMEDIA_TYPE_VIDEO; |
| 306 | st->codec->codec_id = s1->iformat->raw_codec_id; |
| 307 | } else { |
| 308 | const char *str = strrchr(s->path, '.'); |
| 309 | s->split_planes = str && !av_strcasecmp(str + 1, "y"); |
| 310 | st->codec->codec_type = AVMEDIA_TYPE_VIDEO; |
| 311 | if (s1->pb) { |
| 312 | int probe_buffer_size = 2048; |
| 313 | uint8_t *probe_buffer = av_realloc(NULL, probe_buffer_size + AVPROBE_PADDING_SIZE); |
| 314 | AVInputFormat *fmt = NULL; |
| 315 | AVProbeData pd = { 0 }; |
| 316 | |
| 317 | if (!probe_buffer) |
| 318 | return AVERROR(ENOMEM); |
| 319 | |
| 320 | probe_buffer_size = avio_read(s1->pb, probe_buffer, probe_buffer_size); |
| 321 | if (probe_buffer_size < 0) { |
| 322 | av_free(probe_buffer); |
| 323 | return probe_buffer_size; |
| 324 | } |
| 325 | memset(probe_buffer + probe_buffer_size, 0, AVPROBE_PADDING_SIZE); |
| 326 | |
| 327 | pd.buf = probe_buffer; |
| 328 | pd.buf_size = probe_buffer_size; |
| 329 | pd.filename = s1->filename; |
| 330 | |
| 331 | while ((fmt = av_iformat_next(fmt))) { |
| 332 | if (fmt->read_header != ff_img_read_header || |
| 333 | !fmt->read_probe || |
| 334 | (fmt->flags & AVFMT_NOFILE) || |
| 335 | !fmt->raw_codec_id) |
| 336 | continue; |
| 337 | if (fmt->read_probe(&pd) > 0) { |
| 338 | st->codec->codec_id = fmt->raw_codec_id; |
| 339 | break; |
| 340 | } |
| 341 | } |
| 342 | ffio_rewind_with_probe_data(s1->pb, &probe_buffer, probe_buffer_size); |
| 343 | } |
| 344 | if (st->codec->codec_id == AV_CODEC_ID_NONE) |
| 345 | st->codec->codec_id = ff_guess_image2_codec(s->path); |
| 346 | if (st->codec->codec_id == AV_CODEC_ID_LJPEG) |
| 347 | st->codec->codec_id = AV_CODEC_ID_MJPEG; |
| 348 | if (st->codec->codec_id == AV_CODEC_ID_ALIAS_PIX) // we cannot distingiush this from BRENDER_PIX |
| 349 | st->codec->codec_id = AV_CODEC_ID_NONE; |
| 350 | } |
| 351 | if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && |
| 352 | pix_fmt != AV_PIX_FMT_NONE) |
| 353 | st->codec->pix_fmt = pix_fmt; |
| 354 | |
| 355 | return 0; |
| 356 | } |
| 357 | |
| 358 | int ff_img_read_packet(AVFormatContext *s1, AVPacket *pkt) |
| 359 | { |
| 360 | VideoDemuxData *s = s1->priv_data; |
| 361 | char filename_bytes[1024]; |
| 362 | char *filename = filename_bytes; |
| 363 | int i; |
| 364 | int size[3] = { 0 }, ret[3] = { 0 }; |
| 365 | AVIOContext *f[3] = { NULL }; |
| 366 | AVCodecContext *codec = s1->streams[0]->codec; |
| 367 | |
| 368 | if (!s->is_pipe) { |
| 369 | /* loop over input */ |
| 370 | if (s->loop && s->img_number > s->img_last) { |
| 371 | s->img_number = s->img_first; |
| 372 | } |
| 373 | if (s->img_number > s->img_last) |
| 374 | return AVERROR_EOF; |
| 375 | if (s->use_glob) { |
| 376 | #if HAVE_GLOB |
| 377 | filename = s->globstate.gl_pathv[s->img_number]; |
| 378 | #endif |
| 379 | } else { |
| 380 | if (av_get_frame_filename(filename_bytes, sizeof(filename_bytes), |
| 381 | s->path, |
| 382 | s->img_number) < 0 && s->img_number > 1) |
| 383 | return AVERROR(EIO); |
| 384 | } |
| 385 | for (i = 0; i < 3; i++) { |
| 386 | if (avio_open2(&f[i], filename, AVIO_FLAG_READ, |
| 387 | &s1->interrupt_callback, NULL) < 0) { |
| 388 | if (i >= 1) |
| 389 | break; |
| 390 | av_log(s1, AV_LOG_ERROR, "Could not open file : %s\n", |
| 391 | filename); |
| 392 | return AVERROR(EIO); |
| 393 | } |
| 394 | size[i] = avio_size(f[i]); |
| 395 | |
| 396 | if (!s->split_planes) |
| 397 | break; |
| 398 | filename[strlen(filename) - 1] = 'U' + i; |
| 399 | } |
| 400 | |
| 401 | if (codec->codec_id == AV_CODEC_ID_NONE) { |
| 402 | AVProbeData pd = { 0 }; |
| 403 | AVInputFormat *ifmt; |
| 404 | uint8_t header[PROBE_BUF_MIN + AVPROBE_PADDING_SIZE]; |
| 405 | int ret; |
| 406 | int score = 0; |
| 407 | |
| 408 | ret = avio_read(f[0], header, PROBE_BUF_MIN); |
| 409 | if (ret < 0) |
| 410 | return ret; |
| 411 | memset(header + ret, 0, sizeof(header) - ret); |
| 412 | avio_skip(f[0], -ret); |
| 413 | pd.buf = header; |
| 414 | pd.buf_size = ret; |
| 415 | pd.filename = filename; |
| 416 | |
| 417 | ifmt = av_probe_input_format3(&pd, 1, &score); |
| 418 | if (ifmt && ifmt->read_packet == ff_img_read_packet && ifmt->raw_codec_id) |
| 419 | codec->codec_id = ifmt->raw_codec_id; |
| 420 | } |
| 421 | |
| 422 | if (codec->codec_id == AV_CODEC_ID_RAWVIDEO && !codec->width) |
| 423 | infer_size(&codec->width, &codec->height, size[0]); |
| 424 | } else { |
| 425 | f[0] = s1->pb; |
| 426 | if (avio_feof(f[0]) && s->loop && s->is_pipe) |
| 427 | avio_seek(f[0], 0, SEEK_SET); |
| 428 | if (avio_feof(f[0])) |
| 429 | return AVERROR_EOF; |
| 430 | if (s->frame_size > 0) { |
| 431 | size[0] = s->frame_size; |
| 432 | } else if (!s1->streams[0]->parser) { |
| 433 | size[0] = avio_size(s1->pb); |
| 434 | } else { |
| 435 | size[0] = 4096; |
| 436 | } |
| 437 | } |
| 438 | |
| 439 | if (av_new_packet(pkt, size[0] + size[1] + size[2]) < 0) |
| 440 | return AVERROR(ENOMEM); |
| 441 | pkt->stream_index = 0; |
| 442 | pkt->flags |= AV_PKT_FLAG_KEY; |
| 443 | if (s->ts_from_file) { |
| 444 | struct stat img_stat; |
| 445 | if (stat(filename, &img_stat)) |
| 446 | return AVERROR(EIO); |
| 447 | pkt->pts = (int64_t)img_stat.st_mtime; |
| 448 | #if HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC |
| 449 | if (s->ts_from_file == 2) |
| 450 | pkt->pts = 1000000000*pkt->pts + img_stat.st_mtim.tv_nsec; |
| 451 | #endif |
| 452 | av_add_index_entry(s1->streams[0], s->img_number, pkt->pts, 0, 0, AVINDEX_KEYFRAME); |
| 453 | } else if (!s->is_pipe) { |
| 454 | pkt->pts = s->pts; |
| 455 | } |
| 456 | |
| 457 | if (s->is_pipe) |
| 458 | pkt->pos = avio_tell(f[0]); |
| 459 | |
| 460 | pkt->size = 0; |
| 461 | for (i = 0; i < 3; i++) { |
| 462 | if (f[i]) { |
| 463 | ret[i] = avio_read(f[i], pkt->data + pkt->size, size[i]); |
| 464 | if (s->loop && s->is_pipe && ret[i] == AVERROR_EOF) { |
| 465 | if (avio_seek(f[i], 0, SEEK_SET) >= 0) { |
| 466 | pkt->pos = 0; |
| 467 | ret[i] = avio_read(f[i], pkt->data + pkt->size, size[i]); |
| 468 | } |
| 469 | } |
| 470 | if (!s->is_pipe) |
| 471 | avio_close(f[i]); |
| 472 | if (ret[i] > 0) |
| 473 | pkt->size += ret[i]; |
| 474 | } |
| 475 | } |
| 476 | |
| 477 | if (ret[0] <= 0 || ret[1] < 0 || ret[2] < 0) { |
| 478 | av_free_packet(pkt); |
| 479 | if (ret[0] < 0) { |
| 480 | return ret[0]; |
| 481 | } else if (ret[1] < 0) { |
| 482 | return ret[1]; |
| 483 | } else if (ret[2] < 0) |
| 484 | return ret[2]; |
| 485 | return AVERROR_EOF; |
| 486 | } else { |
| 487 | s->img_count++; |
| 488 | s->img_number++; |
| 489 | s->pts++; |
| 490 | return 0; |
| 491 | } |
| 492 | } |
| 493 | |
| 494 | static int img_read_close(struct AVFormatContext* s1) |
| 495 | { |
| 496 | VideoDemuxData *s = s1->priv_data; |
| 497 | #if HAVE_GLOB |
| 498 | if (s->use_glob) { |
| 499 | globfree(&s->globstate); |
| 500 | } |
| 501 | #endif |
| 502 | return 0; |
| 503 | } |
| 504 | |
| 505 | static int img_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags) |
| 506 | { |
| 507 | VideoDemuxData *s1 = s->priv_data; |
| 508 | AVStream *st = s->streams[0]; |
| 509 | |
| 510 | if (s1->ts_from_file) { |
| 511 | int index = av_index_search_timestamp(st, timestamp, flags); |
| 512 | if(index < 0) |
| 513 | return -1; |
| 514 | s1->img_number = st->index_entries[index].pos; |
| 515 | return 0; |
| 516 | } |
| 517 | |
| 518 | if (timestamp < 0 || !s1->loop && timestamp > s1->img_last - s1->img_first) |
| 519 | return -1; |
| 520 | s1->img_number = timestamp%(s1->img_last - s1->img_first + 1) + s1->img_first; |
| 521 | s1->pts = timestamp; |
| 522 | return 0; |
| 523 | } |
| 524 | |
| 525 | #define OFFSET(x) offsetof(VideoDemuxData, x) |
| 526 | #define DEC AV_OPT_FLAG_DECODING_PARAM |
| 527 | const AVOption ff_img_options[] = { |
| 528 | { "framerate", "set the video framerate", OFFSET(framerate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0, DEC }, |
| 529 | { "loop", "force loop over input file sequence", OFFSET(loop), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, DEC }, |
| 530 | |
| 531 | { "pattern_type", "set pattern type", OFFSET(pattern_type), AV_OPT_TYPE_INT, {.i64=PT_GLOB_SEQUENCE}, 0, INT_MAX, DEC, "pattern_type"}, |
| 532 | { "glob_sequence","select glob/sequence pattern type", 0, AV_OPT_TYPE_CONST, {.i64=PT_GLOB_SEQUENCE}, INT_MIN, INT_MAX, DEC, "pattern_type" }, |
| 533 | { "glob", "select glob pattern type", 0, AV_OPT_TYPE_CONST, {.i64=PT_GLOB }, INT_MIN, INT_MAX, DEC, "pattern_type" }, |
| 534 | { "sequence", "select sequence pattern type", 0, AV_OPT_TYPE_CONST, {.i64=PT_SEQUENCE }, INT_MIN, INT_MAX, DEC, "pattern_type" }, |
| 535 | |
| 536 | { "pixel_format", "set video pixel format", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC }, |
| 537 | { "start_number", "set first number in the sequence", OFFSET(start_number), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, DEC }, |
| 538 | { "start_number_range", "set range for looking at the first sequence number", OFFSET(start_number_range), AV_OPT_TYPE_INT, {.i64 = 5}, 1, INT_MAX, DEC }, |
| 539 | { "video_size", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL}, 0, 0, DEC }, |
| 540 | { "frame_size", "force frame size in bytes", OFFSET(frame_size), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, DEC }, |
| 541 | { "ts_from_file", "set frame timestamp from file's one", OFFSET(ts_from_file), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 2, DEC, "ts_type" }, |
| 542 | { "none", "none", 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, 0, 2, DEC, "ts_type" }, |
| 543 | { "sec", "second precision", 0, AV_OPT_TYPE_CONST, {.i64 = 1 }, 0, 2, DEC, "ts_type" }, |
| 544 | { "ns", "nano second precision", 0, AV_OPT_TYPE_CONST, {.i64 = 2 }, 0, 2, DEC, "ts_type" }, |
| 545 | { NULL }, |
| 546 | }; |
| 547 | |
| 548 | #if CONFIG_IMAGE2_DEMUXER |
| 549 | static const AVClass img2_class = { |
| 550 | .class_name = "image2 demuxer", |
| 551 | .item_name = av_default_item_name, |
| 552 | .option = ff_img_options, |
| 553 | .version = LIBAVUTIL_VERSION_INT, |
| 554 | }; |
| 555 | AVInputFormat ff_image2_demuxer = { |
| 556 | .name = "image2", |
| 557 | .long_name = NULL_IF_CONFIG_SMALL("image2 sequence"), |
| 558 | .priv_data_size = sizeof(VideoDemuxData), |
| 559 | .read_probe = img_read_probe, |
| 560 | .read_header = ff_img_read_header, |
| 561 | .read_packet = ff_img_read_packet, |
| 562 | .read_close = img_read_close, |
| 563 | .read_seek = img_read_seek, |
| 564 | .flags = AVFMT_NOFILE, |
| 565 | .priv_class = &img2_class, |
| 566 | }; |
| 567 | #endif |
| 568 | #if CONFIG_IMAGE2PIPE_DEMUXER |
| 569 | static const AVClass img2pipe_class = { |
| 570 | .class_name = "image2pipe demuxer", |
| 571 | .item_name = av_default_item_name, |
| 572 | .option = ff_img_options, |
| 573 | .version = LIBAVUTIL_VERSION_INT, |
| 574 | }; |
| 575 | AVInputFormat ff_image2pipe_demuxer = { |
| 576 | .name = "image2pipe", |
| 577 | .long_name = NULL_IF_CONFIG_SMALL("piped image2 sequence"), |
| 578 | .priv_data_size = sizeof(VideoDemuxData), |
| 579 | .read_header = ff_img_read_header, |
| 580 | .read_packet = ff_img_read_packet, |
| 581 | .priv_class = &img2pipe_class, |
| 582 | }; |
| 583 | #endif |
| 584 | |
| 585 | static int bmp_probe(AVProbeData *p) |
| 586 | { |
| 587 | const uint8_t *b = p->buf; |
| 588 | int ihsize; |
| 589 | |
| 590 | if (AV_RB16(b) != 0x424d) |
| 591 | return 0; |
| 592 | |
| 593 | ihsize = AV_RL32(b+14); |
| 594 | if (ihsize < 12 || ihsize > 255) |
| 595 | return 0; |
| 596 | |
| 597 | if (!AV_RN32(b + 6)) { |
| 598 | return AVPROBE_SCORE_EXTENSION - 1; // lower than extension as bmp pipe has bugs |
| 599 | } else { |
| 600 | return AVPROBE_SCORE_EXTENSION / 4; |
| 601 | } |
| 602 | return 0; |
| 603 | } |
| 604 | |
| 605 | static int dpx_probe(AVProbeData *p) |
| 606 | { |
| 607 | const uint8_t *b = p->buf; |
| 608 | |
| 609 | if (AV_RN32(b) == AV_RN32("SDPX") || AV_RN32(b) == AV_RN32("XPDS")) |
| 610 | return AVPROBE_SCORE_EXTENSION + 1; |
| 611 | return 0; |
| 612 | } |
| 613 | |
| 614 | static int exr_probe(AVProbeData *p) |
| 615 | { |
| 616 | const uint8_t *b = p->buf; |
| 617 | |
| 618 | if (AV_RL32(b) == 20000630) |
| 619 | return AVPROBE_SCORE_EXTENSION + 1; |
| 620 | return 0; |
| 621 | } |
| 622 | |
| 623 | static int j2k_probe(AVProbeData *p) |
| 624 | { |
| 625 | const uint8_t *b = p->buf; |
| 626 | |
| 627 | if (AV_RB64(b) == 0x0000000c6a502020 || |
| 628 | AV_RB32(b) == 0xff4fff51) |
| 629 | return AVPROBE_SCORE_EXTENSION + 1; |
| 630 | return 0; |
| 631 | } |
| 632 | |
| 633 | static int jpegls_probe(AVProbeData *p) |
| 634 | { |
| 635 | const uint8_t *b = p->buf; |
| 636 | |
| 637 | if (AV_RB32(b) == 0xffd8fff7) |
| 638 | return AVPROBE_SCORE_EXTENSION + 1; |
| 639 | return 0; |
| 640 | } |
| 641 | |
| 642 | static int pictor_probe(AVProbeData *p) |
| 643 | { |
| 644 | const uint8_t *b = p->buf; |
| 645 | |
| 646 | if (AV_RL16(b) == 0x1234) |
| 647 | return AVPROBE_SCORE_EXTENSION / 4; |
| 648 | return 0; |
| 649 | } |
| 650 | |
| 651 | static int png_probe(AVProbeData *p) |
| 652 | { |
| 653 | const uint8_t *b = p->buf; |
| 654 | |
| 655 | if (AV_RB64(b) == 0x89504e470d0a1a0a) |
| 656 | return AVPROBE_SCORE_MAX - 1; |
| 657 | return 0; |
| 658 | } |
| 659 | |
| 660 | static int sgi_probe(AVProbeData *p) |
| 661 | { |
| 662 | const uint8_t *b = p->buf; |
| 663 | |
| 664 | if (AV_RB16(b) == 474 && |
| 665 | (b[2] & ~1) == 0 && |
| 666 | (b[3] & ~3) == 0 && b[3] && |
| 667 | (AV_RB16(b + 4) & ~7) == 0 && AV_RB16(b + 4)) |
| 668 | return AVPROBE_SCORE_EXTENSION + 1; |
| 669 | return 0; |
| 670 | } |
| 671 | |
| 672 | static int sunrast_probe(AVProbeData *p) |
| 673 | { |
| 674 | const uint8_t *b = p->buf; |
| 675 | |
| 676 | if (AV_RB32(b) == 0x59a66a95) |
| 677 | return AVPROBE_SCORE_EXTENSION + 1; |
| 678 | return 0; |
| 679 | } |
| 680 | |
| 681 | static int tiff_probe(AVProbeData *p) |
| 682 | { |
| 683 | const uint8_t *b = p->buf; |
| 684 | |
| 685 | if (AV_RB32(b) == 0x49492a00 || |
| 686 | AV_RB32(b) == 0x4D4D002a) |
| 687 | return AVPROBE_SCORE_EXTENSION + 1; |
| 688 | return 0; |
| 689 | } |
| 690 | |
| 691 | static int webp_probe(AVProbeData *p) |
| 692 | { |
| 693 | const uint8_t *b = p->buf; |
| 694 | |
| 695 | if (AV_RB32(b) == 0x52494646 && |
| 696 | AV_RB32(b + 8) == 0x57454250) |
| 697 | return AVPROBE_SCORE_MAX - 1; |
| 698 | return 0; |
| 699 | } |
| 700 | |
| 701 | #define IMAGEAUTO_DEMUXER(imgname, codecid)\ |
| 702 | static const AVClass imgname ## _class = {\ |
| 703 | .class_name = AV_STRINGIFY(imgname) " demuxer",\ |
| 704 | .item_name = av_default_item_name,\ |
| 705 | .option = ff_img_options,\ |
| 706 | .version = LIBAVUTIL_VERSION_INT,\ |
| 707 | };\ |
| 708 | AVInputFormat ff_image_ ## imgname ## _pipe_demuxer = {\ |
| 709 | .name = AV_STRINGIFY(imgname) "_pipe",\ |
| 710 | .long_name = NULL_IF_CONFIG_SMALL("piped " AV_STRINGIFY(imgname) " sequence"),\ |
| 711 | .priv_data_size = sizeof(VideoDemuxData),\ |
| 712 | .read_probe = imgname ## _probe,\ |
| 713 | .read_header = ff_img_read_header,\ |
| 714 | .read_packet = ff_img_read_packet,\ |
| 715 | .priv_class = & imgname ## _class,\ |
| 716 | .flags = AVFMT_GENERIC_INDEX, \ |
| 717 | .raw_codec_id = codecid,\ |
| 718 | }; |
| 719 | |
| 720 | IMAGEAUTO_DEMUXER(bmp, AV_CODEC_ID_BMP) |
| 721 | IMAGEAUTO_DEMUXER(dpx, AV_CODEC_ID_DPX) |
| 722 | IMAGEAUTO_DEMUXER(exr, AV_CODEC_ID_EXR) |
| 723 | IMAGEAUTO_DEMUXER(j2k, AV_CODEC_ID_JPEG2000) |
| 724 | IMAGEAUTO_DEMUXER(jpegls, AV_CODEC_ID_JPEGLS) |
| 725 | IMAGEAUTO_DEMUXER(pictor, AV_CODEC_ID_PICTOR) |
| 726 | IMAGEAUTO_DEMUXER(png, AV_CODEC_ID_PNG) |
| 727 | IMAGEAUTO_DEMUXER(sgi, AV_CODEC_ID_SGI) |
| 728 | IMAGEAUTO_DEMUXER(sunrast, AV_CODEC_ID_SUNRAST) |
| 729 | IMAGEAUTO_DEMUXER(tiff, AV_CODEC_ID_TIFF) |
| 730 | IMAGEAUTO_DEMUXER(webp, AV_CODEC_ID_WEBP) |