Commit | Line | Data |
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2ba45a60 DM |
1 | /* |
2 | * Copyright (c) 2012 Martin Storsjo | |
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 | * To create a simple file for smooth streaming: | |
23 | * ffmpeg <normal input/transcoding options> -movflags frag_keyframe foo.ismv | |
24 | * ismindex -n foo foo.ismv | |
25 | * This step creates foo.ism and foo.ismc that is required by IIS for | |
26 | * serving it. | |
27 | * | |
28 | * With -ismf, it also creates foo.ismf, which maps fragment names to | |
29 | * start-end offsets in the ismv, for use in your own streaming server. | |
30 | * | |
31 | * By adding -path-prefix path/, the produced foo.ism will refer to the | |
32 | * files foo.ismv as "path/foo.ismv" - the prefix for the generated ismc | |
33 | * file can be set with the -ismc-prefix option similarly. | |
34 | * | |
35 | * To pre-split files for serving as static files by a web server without | |
36 | * any extra server support, create the ismv file as above, and split it: | |
37 | * ismindex -split foo.ismv | |
38 | * This step creates a file Manifest and directories QualityLevel(...), | |
39 | * that can be read directly by a smooth streaming player. | |
40 | * | |
41 | * The -output dir option can be used to request that output files | |
42 | * (both .ism/.ismc, or Manifest/QualityLevels* when splitting) | |
43 | * should be written to this directory instead of in the current directory. | |
44 | * (The directory itself isn't created if it doesn't already exist.) | |
45 | */ | |
46 | ||
47 | #include <stdio.h> | |
48 | #include <string.h> | |
49 | ||
50 | #include "cmdutils.h" | |
51 | ||
52 | #include "libavformat/avformat.h" | |
f6fa7814 | 53 | #include "libavformat/isom.h" |
2ba45a60 DM |
54 | #include "libavformat/os_support.h" |
55 | #include "libavutil/intreadwrite.h" | |
56 | #include "libavutil/mathematics.h" | |
57 | ||
58 | static int usage(const char *argv0, int ret) | |
59 | { | |
60 | fprintf(stderr, "%s [-split] [-ismf] [-n basename] [-path-prefix prefix] " | |
61 | "[-ismc-prefix prefix] [-output dir] file1 [file2] ...\n", argv0); | |
62 | return ret; | |
63 | } | |
64 | ||
65 | struct MoofOffset { | |
66 | int64_t time; | |
67 | int64_t offset; | |
68 | int64_t duration; | |
69 | }; | |
70 | ||
71 | struct Track { | |
72 | const char *name; | |
73 | int64_t duration; | |
74 | int bitrate; | |
75 | int track_id; | |
76 | int is_audio, is_video; | |
77 | int width, height; | |
78 | int chunks; | |
79 | int sample_rate, channels; | |
80 | uint8_t *codec_private; | |
81 | int codec_private_size; | |
82 | struct MoofOffset *offsets; | |
83 | int timescale; | |
84 | const char *fourcc; | |
85 | int blocksize; | |
86 | int tag; | |
87 | }; | |
88 | ||
89 | struct Tracks { | |
90 | int nb_tracks; | |
91 | int64_t duration; | |
92 | struct Track **tracks; | |
93 | int video_track, audio_track; | |
94 | int nb_video_tracks, nb_audio_tracks; | |
95 | }; | |
96 | ||
97 | static int expect_tag(int32_t got_tag, int32_t expected_tag) { | |
98 | if (got_tag != expected_tag) { | |
99 | char got_tag_str[4], expected_tag_str[4]; | |
100 | AV_WB32(got_tag_str, got_tag); | |
101 | AV_WB32(expected_tag_str, expected_tag); | |
102 | fprintf(stderr, "wanted tag %.4s, got %.4s\n", expected_tag_str, | |
103 | got_tag_str); | |
104 | return -1; | |
105 | } | |
106 | return 0; | |
107 | } | |
108 | ||
109 | static int copy_tag(AVIOContext *in, AVIOContext *out, int32_t tag_name) | |
110 | { | |
111 | int32_t size, tag; | |
112 | ||
113 | size = avio_rb32(in); | |
114 | tag = avio_rb32(in); | |
115 | avio_wb32(out, size); | |
116 | avio_wb32(out, tag); | |
117 | if (expect_tag(tag, tag_name) != 0) | |
118 | return -1; | |
119 | size -= 8; | |
120 | while (size > 0) { | |
121 | char buf[1024]; | |
122 | int len = FFMIN(sizeof(buf), size); | |
123 | int got; | |
124 | if ((got = avio_read(in, buf, len)) != len) { | |
125 | fprintf(stderr, "short read, wanted %d, got %d\n", len, got); | |
126 | break; | |
127 | } | |
128 | avio_write(out, buf, len); | |
129 | size -= len; | |
130 | } | |
131 | return 0; | |
132 | } | |
133 | ||
134 | static int skip_tag(AVIOContext *in, int32_t tag_name) | |
135 | { | |
136 | int64_t pos = avio_tell(in); | |
137 | int32_t size, tag; | |
138 | ||
139 | size = avio_rb32(in); | |
140 | tag = avio_rb32(in); | |
141 | if (expect_tag(tag, tag_name) != 0) | |
142 | return -1; | |
143 | avio_seek(in, pos + size, SEEK_SET); | |
144 | return 0; | |
145 | } | |
146 | ||
147 | static int write_fragment(const char *filename, AVIOContext *in) | |
148 | { | |
149 | AVIOContext *out = NULL; | |
150 | int ret; | |
151 | ||
152 | if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, NULL, NULL)) < 0) { | |
153 | char errbuf[100]; | |
154 | av_strerror(ret, errbuf, sizeof(errbuf)); | |
155 | fprintf(stderr, "Unable to open %s: %s\n", filename, errbuf); | |
156 | return ret; | |
157 | } | |
158 | ret = copy_tag(in, out, MKBETAG('m', 'o', 'o', 'f')); | |
159 | if (!ret) | |
160 | ret = copy_tag(in, out, MKBETAG('m', 'd', 'a', 't')); | |
161 | ||
162 | avio_flush(out); | |
163 | avio_close(out); | |
164 | ||
165 | return ret; | |
166 | } | |
167 | ||
168 | static int skip_fragment(AVIOContext *in) | |
169 | { | |
170 | int ret; | |
171 | ret = skip_tag(in, MKBETAG('m', 'o', 'o', 'f')); | |
172 | if (!ret) | |
173 | ret = skip_tag(in, MKBETAG('m', 'd', 'a', 't')); | |
174 | return ret; | |
175 | } | |
176 | ||
177 | static int write_fragments(struct Tracks *tracks, int start_index, | |
178 | AVIOContext *in, const char *basename, | |
179 | int split, int ismf, const char* output_prefix) | |
180 | { | |
181 | char dirname[2048], filename[2048], idxname[2048]; | |
182 | int i, j, ret = 0, fragment_ret; | |
183 | FILE* out = NULL; | |
184 | ||
185 | if (ismf) { | |
186 | snprintf(idxname, sizeof(idxname), "%s%s.ismf", output_prefix, basename); | |
187 | out = fopen(idxname, "w"); | |
188 | if (!out) { | |
189 | ret = AVERROR(errno); | |
190 | perror(idxname); | |
191 | goto fail; | |
192 | } | |
193 | } | |
194 | for (i = start_index; i < tracks->nb_tracks; i++) { | |
195 | struct Track *track = tracks->tracks[i]; | |
196 | const char *type = track->is_video ? "video" : "audio"; | |
197 | snprintf(dirname, sizeof(dirname), "%sQualityLevels(%d)", output_prefix, track->bitrate); | |
198 | if (split) { | |
199 | if (mkdir(dirname, 0777) == -1 && errno != EEXIST) { | |
200 | ret = AVERROR(errno); | |
201 | perror(dirname); | |
202 | goto fail; | |
203 | } | |
204 | } | |
205 | for (j = 0; j < track->chunks; j++) { | |
206 | snprintf(filename, sizeof(filename), "%s/Fragments(%s=%"PRId64")", | |
207 | dirname, type, track->offsets[j].time); | |
208 | avio_seek(in, track->offsets[j].offset, SEEK_SET); | |
209 | if (ismf) | |
210 | fprintf(out, "%s %"PRId64, filename, avio_tell(in)); | |
211 | if (split) | |
212 | fragment_ret = write_fragment(filename, in); | |
213 | else | |
214 | fragment_ret = skip_fragment(in); | |
215 | if (ismf) | |
216 | fprintf(out, " %"PRId64"\n", avio_tell(in)); | |
217 | if (fragment_ret != 0) { | |
218 | fprintf(stderr, "failed fragment %d in track %d (%s)\n", j, | |
219 | track->track_id, track->name); | |
220 | ret = fragment_ret; | |
221 | } | |
222 | } | |
223 | } | |
224 | fail: | |
225 | if (out) | |
226 | fclose(out); | |
227 | return ret; | |
228 | } | |
229 | ||
f6fa7814 DM |
230 | static int64_t read_trun_duration(AVIOContext *in, int default_duration, |
231 | int64_t end) | |
232 | { | |
233 | int64_t ret = 0; | |
234 | int64_t pos; | |
235 | int flags, i; | |
236 | int entries; | |
237 | avio_r8(in); /* version */ | |
238 | flags = avio_rb24(in); | |
239 | if (default_duration <= 0 && !(flags & MOV_TRUN_SAMPLE_DURATION)) { | |
240 | fprintf(stderr, "No sample duration in trun flags\n"); | |
241 | return -1; | |
242 | } | |
243 | entries = avio_rb32(in); | |
244 | ||
245 | if (flags & MOV_TRUN_DATA_OFFSET) avio_rb32(in); | |
246 | if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) avio_rb32(in); | |
247 | ||
248 | pos = avio_tell(in); | |
249 | for (i = 0; i < entries && pos < end; i++) { | |
250 | int sample_duration = default_duration; | |
251 | if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(in); | |
252 | if (flags & MOV_TRUN_SAMPLE_SIZE) avio_rb32(in); | |
253 | if (flags & MOV_TRUN_SAMPLE_FLAGS) avio_rb32(in); | |
254 | if (flags & MOV_TRUN_SAMPLE_CTS) avio_rb32(in); | |
255 | if (sample_duration < 0) { | |
256 | fprintf(stderr, "Negative sample duration %d\n", sample_duration); | |
257 | return -1; | |
258 | } | |
259 | ret += sample_duration; | |
260 | pos = avio_tell(in); | |
261 | } | |
262 | ||
263 | return ret; | |
264 | } | |
265 | ||
266 | static int64_t read_moof_duration(AVIOContext *in, int64_t offset) | |
267 | { | |
268 | int64_t ret = -1; | |
269 | int32_t moof_size, size, tag; | |
270 | int64_t pos = 0; | |
271 | int default_duration = 0; | |
272 | ||
273 | avio_seek(in, offset, SEEK_SET); | |
274 | moof_size = avio_rb32(in); | |
275 | tag = avio_rb32(in); | |
276 | if (expect_tag(tag, MKBETAG('m', 'o', 'o', 'f')) != 0) | |
277 | goto fail; | |
278 | while (pos < offset + moof_size) { | |
279 | pos = avio_tell(in); | |
280 | size = avio_rb32(in); | |
281 | tag = avio_rb32(in); | |
282 | if (tag == MKBETAG('t', 'r', 'a', 'f')) { | |
283 | int64_t traf_pos = pos; | |
284 | int64_t traf_size = size; | |
285 | while (pos < traf_pos + traf_size) { | |
286 | pos = avio_tell(in); | |
287 | size = avio_rb32(in); | |
288 | tag = avio_rb32(in); | |
289 | if (tag == MKBETAG('t', 'f', 'h', 'd')) { | |
290 | int flags = 0; | |
291 | avio_r8(in); /* version */ | |
292 | flags = avio_rb24(in); | |
293 | avio_rb32(in); /* track_id */ | |
294 | if (flags & MOV_TFHD_BASE_DATA_OFFSET) | |
295 | avio_rb64(in); | |
296 | if (flags & MOV_TFHD_STSD_ID) | |
297 | avio_rb32(in); | |
298 | if (flags & MOV_TFHD_DEFAULT_DURATION) | |
299 | default_duration = avio_rb32(in); | |
300 | } | |
301 | if (tag == MKBETAG('t', 'r', 'u', 'n')) { | |
302 | return read_trun_duration(in, default_duration, | |
303 | pos + size); | |
304 | } | |
305 | avio_seek(in, pos + size, SEEK_SET); | |
306 | } | |
307 | fprintf(stderr, "Couldn't find trun\n"); | |
308 | goto fail; | |
309 | } | |
310 | avio_seek(in, pos + size, SEEK_SET); | |
311 | } | |
312 | fprintf(stderr, "Couldn't find traf\n"); | |
313 | ||
314 | fail: | |
315 | return ret; | |
316 | } | |
317 | ||
2ba45a60 DM |
318 | static int read_tfra(struct Tracks *tracks, int start_index, AVIOContext *f) |
319 | { | |
320 | int ret = AVERROR_EOF, track_id; | |
321 | int version, fieldlength, i, j; | |
322 | int64_t pos = avio_tell(f); | |
323 | uint32_t size = avio_rb32(f); | |
324 | struct Track *track = NULL; | |
325 | ||
326 | if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) | |
327 | goto fail; | |
328 | version = avio_r8(f); | |
329 | avio_rb24(f); | |
330 | track_id = avio_rb32(f); /* track id */ | |
331 | for (i = start_index; i < tracks->nb_tracks && !track; i++) | |
332 | if (tracks->tracks[i]->track_id == track_id) | |
333 | track = tracks->tracks[i]; | |
334 | if (!track) { | |
335 | /* Ok, continue parsing the next atom */ | |
336 | ret = 0; | |
337 | goto fail; | |
338 | } | |
339 | fieldlength = avio_rb32(f); | |
340 | track->chunks = avio_rb32(f); | |
341 | track->offsets = av_mallocz_array(track->chunks, sizeof(*track->offsets)); | |
342 | if (!track->offsets) { | |
343 | ret = AVERROR(ENOMEM); | |
344 | goto fail; | |
345 | } | |
f6fa7814 DM |
346 | // The duration here is always the difference between consecutive |
347 | // start times. | |
2ba45a60 DM |
348 | for (i = 0; i < track->chunks; i++) { |
349 | if (version == 1) { | |
350 | track->offsets[i].time = avio_rb64(f); | |
351 | track->offsets[i].offset = avio_rb64(f); | |
352 | } else { | |
353 | track->offsets[i].time = avio_rb32(f); | |
354 | track->offsets[i].offset = avio_rb32(f); | |
355 | } | |
356 | for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++) | |
357 | avio_r8(f); | |
358 | for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++) | |
359 | avio_r8(f); | |
360 | for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++) | |
361 | avio_r8(f); | |
362 | if (i > 0) | |
363 | track->offsets[i - 1].duration = track->offsets[i].time - | |
364 | track->offsets[i - 1].time; | |
365 | } | |
f6fa7814 DM |
366 | if (track->chunks > 0) { |
367 | track->offsets[track->chunks - 1].duration = track->offsets[0].time + | |
368 | track->duration - | |
2ba45a60 | 369 | track->offsets[track->chunks - 1].time; |
f6fa7814 DM |
370 | } |
371 | // Now try and read the actual durations from the trun sample data. | |
372 | for (i = 0; i < track->chunks; i++) { | |
373 | int64_t duration = read_moof_duration(f, track->offsets[i].offset); | |
374 | if (duration > 0 && abs(duration - track->offsets[i].duration) > 3) { | |
375 | // 3 allows for integer duration to drift a few units, | |
376 | // e.g., for 1/3 durations | |
377 | track->offsets[i].duration = duration; | |
378 | } | |
379 | } | |
380 | if (track->chunks > 0) { | |
381 | if (track->offsets[track->chunks - 1].duration <= 0) { | |
382 | fprintf(stderr, "Calculated last chunk duration for track %d " | |
383 | "was non-positive (%"PRId64"), probably due to missing " | |
384 | "fragments ", track->track_id, | |
385 | track->offsets[track->chunks - 1].duration); | |
386 | if (track->chunks > 1) { | |
387 | track->offsets[track->chunks - 1].duration = | |
388 | track->offsets[track->chunks - 2].duration; | |
389 | } else { | |
390 | track->offsets[track->chunks - 1].duration = 1; | |
391 | } | |
392 | fprintf(stderr, "corrected to %"PRId64"\n", | |
393 | track->offsets[track->chunks - 1].duration); | |
394 | track->duration = track->offsets[track->chunks - 1].time + | |
395 | track->offsets[track->chunks - 1].duration - | |
396 | track->offsets[0].time; | |
397 | fprintf(stderr, "Track duration corrected to %"PRId64"\n", | |
398 | track->duration); | |
399 | } | |
400 | } | |
2ba45a60 DM |
401 | ret = 0; |
402 | ||
403 | fail: | |
404 | avio_seek(f, pos + size, SEEK_SET); | |
405 | return ret; | |
406 | } | |
407 | ||
408 | static int read_mfra(struct Tracks *tracks, int start_index, | |
409 | const char *file, int split, int ismf, | |
410 | const char *basename, const char* output_prefix) | |
411 | { | |
412 | int err = 0; | |
413 | const char* err_str = ""; | |
414 | AVIOContext *f = NULL; | |
415 | int32_t mfra_size; | |
416 | ||
417 | if ((err = avio_open2(&f, file, AVIO_FLAG_READ, NULL, NULL)) < 0) | |
418 | goto fail; | |
419 | avio_seek(f, avio_size(f) - 4, SEEK_SET); | |
420 | mfra_size = avio_rb32(f); | |
421 | avio_seek(f, -mfra_size, SEEK_CUR); | |
422 | if (avio_rb32(f) != mfra_size) { | |
423 | err = AVERROR_INVALIDDATA; | |
424 | err_str = "mfra size mismatch"; | |
425 | goto fail; | |
426 | } | |
427 | if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) { | |
428 | err = AVERROR_INVALIDDATA; | |
429 | err_str = "mfra tag mismatch"; | |
430 | goto fail; | |
431 | } | |
432 | while (!read_tfra(tracks, start_index, f)) { | |
433 | /* Empty */ | |
434 | } | |
435 | ||
436 | if (split || ismf) | |
437 | err = write_fragments(tracks, start_index, f, basename, split, ismf, | |
438 | output_prefix); | |
439 | err_str = "error in write_fragments"; | |
440 | ||
441 | fail: | |
442 | if (f) | |
443 | avio_close(f); | |
444 | if (err) | |
445 | fprintf(stderr, "Unable to read the MFRA atom in %s (%s)\n", file, err_str); | |
446 | return err; | |
447 | } | |
448 | ||
449 | static int get_private_data(struct Track *track, AVCodecContext *codec) | |
450 | { | |
451 | track->codec_private_size = codec->extradata_size; | |
452 | track->codec_private = av_mallocz(codec->extradata_size); | |
453 | if (!track->codec_private) | |
454 | return AVERROR(ENOMEM); | |
455 | memcpy(track->codec_private, codec->extradata, codec->extradata_size); | |
456 | return 0; | |
457 | } | |
458 | ||
459 | static int get_video_private_data(struct Track *track, AVCodecContext *codec) | |
460 | { | |
461 | AVIOContext *io = NULL; | |
462 | uint16_t sps_size, pps_size; | |
463 | int err; | |
464 | ||
465 | if (codec->codec_id == AV_CODEC_ID_VC1) | |
466 | return get_private_data(track, codec); | |
467 | ||
468 | if ((err = avio_open_dyn_buf(&io)) < 0) | |
469 | goto fail; | |
470 | err = AVERROR(EINVAL); | |
471 | if (codec->extradata_size < 11 || codec->extradata[0] != 1) | |
472 | goto fail; | |
473 | sps_size = AV_RB16(&codec->extradata[6]); | |
474 | if (11 + sps_size > codec->extradata_size) | |
475 | goto fail; | |
476 | avio_wb32(io, 0x00000001); | |
477 | avio_write(io, &codec->extradata[8], sps_size); | |
478 | pps_size = AV_RB16(&codec->extradata[9 + sps_size]); | |
479 | if (11 + sps_size + pps_size > codec->extradata_size) | |
480 | goto fail; | |
481 | avio_wb32(io, 0x00000001); | |
482 | avio_write(io, &codec->extradata[11 + sps_size], pps_size); | |
483 | err = 0; | |
484 | ||
485 | fail: | |
486 | track->codec_private_size = avio_close_dyn_buf(io, &track->codec_private); | |
487 | return err; | |
488 | } | |
489 | ||
490 | static int handle_file(struct Tracks *tracks, const char *file, int split, | |
491 | int ismf, const char *basename, | |
492 | const char* output_prefix) | |
493 | { | |
494 | AVFormatContext *ctx = NULL; | |
495 | int err = 0, i, orig_tracks = tracks->nb_tracks; | |
496 | char errbuf[50], *ptr; | |
497 | struct Track *track; | |
498 | ||
499 | err = avformat_open_input(&ctx, file, NULL, NULL); | |
500 | if (err < 0) { | |
501 | av_strerror(err, errbuf, sizeof(errbuf)); | |
502 | fprintf(stderr, "Unable to open %s: %s\n", file, errbuf); | |
503 | return 1; | |
504 | } | |
505 | ||
506 | err = avformat_find_stream_info(ctx, NULL); | |
507 | if (err < 0) { | |
508 | av_strerror(err, errbuf, sizeof(errbuf)); | |
509 | fprintf(stderr, "Unable to identify %s: %s\n", file, errbuf); | |
510 | goto fail; | |
511 | } | |
512 | ||
513 | if (ctx->nb_streams < 1) { | |
514 | fprintf(stderr, "No streams found in %s\n", file); | |
515 | goto fail; | |
516 | } | |
517 | ||
518 | for (i = 0; i < ctx->nb_streams; i++) { | |
519 | struct Track **temp; | |
520 | AVStream *st = ctx->streams[i]; | |
521 | ||
522 | if (st->codec->bit_rate == 0) { | |
523 | fprintf(stderr, "Skipping track %d in %s as it has zero bitrate\n", | |
524 | st->id, file); | |
525 | continue; | |
526 | } | |
527 | ||
528 | track = av_mallocz(sizeof(*track)); | |
529 | if (!track) { | |
530 | err = AVERROR(ENOMEM); | |
531 | goto fail; | |
532 | } | |
533 | temp = av_realloc(tracks->tracks, | |
534 | sizeof(*tracks->tracks) * (tracks->nb_tracks + 1)); | |
535 | if (!temp) { | |
536 | av_free(track); | |
537 | err = AVERROR(ENOMEM); | |
538 | goto fail; | |
539 | } | |
540 | tracks->tracks = temp; | |
541 | tracks->tracks[tracks->nb_tracks] = track; | |
542 | ||
543 | track->name = file; | |
544 | if ((ptr = strrchr(file, '/'))) | |
545 | track->name = ptr + 1; | |
546 | ||
547 | track->bitrate = st->codec->bit_rate; | |
548 | track->track_id = st->id; | |
549 | track->timescale = st->time_base.den; | |
550 | track->duration = st->duration; | |
551 | track->is_audio = st->codec->codec_type == AVMEDIA_TYPE_AUDIO; | |
552 | track->is_video = st->codec->codec_type == AVMEDIA_TYPE_VIDEO; | |
553 | ||
554 | if (!track->is_audio && !track->is_video) { | |
555 | fprintf(stderr, | |
556 | "Track %d in %s is neither video nor audio, skipping\n", | |
557 | track->track_id, file); | |
558 | av_freep(&tracks->tracks[tracks->nb_tracks]); | |
559 | continue; | |
560 | } | |
561 | ||
562 | tracks->duration = FFMAX(tracks->duration, | |
563 | av_rescale_rnd(track->duration, AV_TIME_BASE, | |
564 | track->timescale, AV_ROUND_UP)); | |
565 | ||
566 | if (track->is_audio) { | |
567 | if (tracks->audio_track < 0) | |
568 | tracks->audio_track = tracks->nb_tracks; | |
569 | tracks->nb_audio_tracks++; | |
570 | track->channels = st->codec->channels; | |
571 | track->sample_rate = st->codec->sample_rate; | |
572 | if (st->codec->codec_id == AV_CODEC_ID_AAC) { | |
573 | track->fourcc = "AACL"; | |
574 | track->tag = 255; | |
575 | track->blocksize = 4; | |
576 | } else if (st->codec->codec_id == AV_CODEC_ID_WMAPRO) { | |
577 | track->fourcc = "WMAP"; | |
578 | track->tag = st->codec->codec_tag; | |
579 | track->blocksize = st->codec->block_align; | |
580 | } | |
581 | get_private_data(track, st->codec); | |
582 | } | |
583 | if (track->is_video) { | |
584 | if (tracks->video_track < 0) | |
585 | tracks->video_track = tracks->nb_tracks; | |
586 | tracks->nb_video_tracks++; | |
587 | track->width = st->codec->width; | |
588 | track->height = st->codec->height; | |
589 | if (st->codec->codec_id == AV_CODEC_ID_H264) | |
590 | track->fourcc = "H264"; | |
591 | else if (st->codec->codec_id == AV_CODEC_ID_VC1) | |
592 | track->fourcc = "WVC1"; | |
593 | get_video_private_data(track, st->codec); | |
594 | } | |
595 | ||
596 | tracks->nb_tracks++; | |
597 | } | |
598 | ||
599 | avformat_close_input(&ctx); | |
600 | ||
601 | err = read_mfra(tracks, orig_tracks, file, split, ismf, basename, | |
602 | output_prefix); | |
603 | ||
604 | fail: | |
605 | if (ctx) | |
606 | avformat_close_input(&ctx); | |
607 | return err; | |
608 | } | |
609 | ||
610 | static void output_server_manifest(struct Tracks *tracks, const char *basename, | |
611 | const char *output_prefix, | |
612 | const char *path_prefix, | |
613 | const char *ismc_prefix) | |
614 | { | |
615 | char filename[1000]; | |
616 | FILE *out; | |
617 | int i; | |
618 | ||
619 | snprintf(filename, sizeof(filename), "%s%s.ism", output_prefix, basename); | |
620 | out = fopen(filename, "w"); | |
621 | if (!out) { | |
622 | perror(filename); | |
623 | return; | |
624 | } | |
625 | fprintf(out, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"); | |
626 | fprintf(out, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n"); | |
627 | fprintf(out, "\t<head>\n"); | |
628 | fprintf(out, "\t\t<meta name=\"clientManifestRelativePath\" " | |
629 | "content=\"%s%s.ismc\" />\n", ismc_prefix, basename); | |
630 | fprintf(out, "\t</head>\n"); | |
631 | fprintf(out, "\t<body>\n"); | |
632 | fprintf(out, "\t\t<switch>\n"); | |
633 | for (i = 0; i < tracks->nb_tracks; i++) { | |
634 | struct Track *track = tracks->tracks[i]; | |
635 | const char *type = track->is_video ? "video" : "audio"; | |
636 | fprintf(out, "\t\t\t<%s src=\"%s%s\" systemBitrate=\"%d\">\n", | |
637 | type, path_prefix, track->name, track->bitrate); | |
638 | fprintf(out, "\t\t\t\t<param name=\"trackID\" value=\"%d\" " | |
639 | "valueType=\"data\" />\n", track->track_id); | |
640 | fprintf(out, "\t\t\t</%s>\n", type); | |
641 | } | |
642 | fprintf(out, "\t\t</switch>\n"); | |
643 | fprintf(out, "\t</body>\n"); | |
644 | fprintf(out, "</smil>\n"); | |
645 | fclose(out); | |
646 | } | |
647 | ||
648 | static void print_track_chunks(FILE *out, struct Tracks *tracks, int main, | |
649 | const char *type) | |
650 | { | |
651 | int i, j; | |
f6fa7814 | 652 | int64_t pos = 0; |
2ba45a60 DM |
653 | struct Track *track = tracks->tracks[main]; |
654 | int should_print_time_mismatch = 1; | |
655 | ||
656 | for (i = 0; i < track->chunks; i++) { | |
657 | for (j = main + 1; j < tracks->nb_tracks; j++) { | |
658 | if (tracks->tracks[j]->is_audio == track->is_audio) { | |
659 | if (track->offsets[i].duration != tracks->tracks[j]->offsets[i].duration) { | |
660 | fprintf(stderr, "Mismatched duration of %s chunk %d in %s (%d) and %s (%d)\n", | |
661 | type, i, track->name, main, tracks->tracks[j]->name, j); | |
662 | should_print_time_mismatch = 1; | |
663 | } | |
664 | if (track->offsets[i].time != tracks->tracks[j]->offsets[i].time) { | |
665 | if (should_print_time_mismatch) | |
666 | fprintf(stderr, "Mismatched (start) time of %s chunk %d in %s (%d) and %s (%d)\n", | |
667 | type, i, track->name, main, tracks->tracks[j]->name, j); | |
668 | should_print_time_mismatch = 0; | |
669 | } | |
670 | } | |
671 | } | |
f6fa7814 | 672 | fprintf(out, "\t\t<c n=\"%d\" d=\"%"PRId64"\" ", |
2ba45a60 | 673 | i, track->offsets[i].duration); |
f6fa7814 DM |
674 | if (pos != track->offsets[i].time) { |
675 | fprintf(out, "t=\"%"PRId64"\" ", track->offsets[i].time); | |
676 | pos = track->offsets[i].time; | |
677 | } | |
678 | pos += track->offsets[i].duration; | |
679 | fprintf(out, "/>\n"); | |
2ba45a60 DM |
680 | } |
681 | } | |
682 | ||
683 | static void output_client_manifest(struct Tracks *tracks, const char *basename, | |
684 | const char *output_prefix, int split) | |
685 | { | |
686 | char filename[1000]; | |
687 | FILE *out; | |
688 | int i, j; | |
689 | ||
690 | if (split) | |
691 | snprintf(filename, sizeof(filename), "%sManifest", output_prefix); | |
692 | else | |
693 | snprintf(filename, sizeof(filename), "%s%s.ismc", output_prefix, basename); | |
694 | out = fopen(filename, "w"); | |
695 | if (!out) { | |
696 | perror(filename); | |
697 | return; | |
698 | } | |
699 | fprintf(out, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"); | |
700 | fprintf(out, "<SmoothStreamingMedia MajorVersion=\"2\" MinorVersion=\"0\" " | |
701 | "Duration=\"%"PRId64 "\">\n", tracks->duration * 10); | |
702 | if (tracks->video_track >= 0) { | |
703 | struct Track *track = tracks->tracks[tracks->video_track]; | |
704 | struct Track *first_track = track; | |
705 | int index = 0; | |
706 | fprintf(out, | |
707 | "\t<StreamIndex Type=\"video\" QualityLevels=\"%d\" " | |
708 | "Chunks=\"%d\" " | |
709 | "Url=\"QualityLevels({bitrate})/Fragments(video={start time})\">\n", | |
710 | tracks->nb_video_tracks, track->chunks); | |
711 | for (i = 0; i < tracks->nb_tracks; i++) { | |
712 | track = tracks->tracks[i]; | |
713 | if (!track->is_video) | |
714 | continue; | |
715 | fprintf(out, | |
716 | "\t\t<QualityLevel Index=\"%d\" Bitrate=\"%d\" " | |
717 | "FourCC=\"%s\" MaxWidth=\"%d\" MaxHeight=\"%d\" " | |
718 | "CodecPrivateData=\"", | |
719 | index, track->bitrate, track->fourcc, track->width, track->height); | |
720 | for (j = 0; j < track->codec_private_size; j++) | |
721 | fprintf(out, "%02X", track->codec_private[j]); | |
722 | fprintf(out, "\" />\n"); | |
723 | index++; | |
724 | if (track->chunks != first_track->chunks) | |
725 | fprintf(stderr, "Mismatched number of video chunks in %s (id: %d, chunks %d) and %s (id: %d, chunks %d)\n", | |
726 | track->name, track->track_id, track->chunks, first_track->name, first_track->track_id, first_track->chunks); | |
727 | } | |
728 | print_track_chunks(out, tracks, tracks->video_track, "video"); | |
729 | fprintf(out, "\t</StreamIndex>\n"); | |
730 | } | |
731 | if (tracks->audio_track >= 0) { | |
732 | struct Track *track = tracks->tracks[tracks->audio_track]; | |
733 | struct Track *first_track = track; | |
734 | int index = 0; | |
735 | fprintf(out, | |
736 | "\t<StreamIndex Type=\"audio\" QualityLevels=\"%d\" " | |
737 | "Chunks=\"%d\" " | |
738 | "Url=\"QualityLevels({bitrate})/Fragments(audio={start time})\">\n", | |
739 | tracks->nb_audio_tracks, track->chunks); | |
740 | for (i = 0; i < tracks->nb_tracks; i++) { | |
741 | track = tracks->tracks[i]; | |
742 | if (!track->is_audio) | |
743 | continue; | |
744 | fprintf(out, | |
745 | "\t\t<QualityLevel Index=\"%d\" Bitrate=\"%d\" " | |
746 | "FourCC=\"%s\" SamplingRate=\"%d\" Channels=\"%d\" " | |
747 | "BitsPerSample=\"16\" PacketSize=\"%d\" " | |
748 | "AudioTag=\"%d\" CodecPrivateData=\"", | |
749 | index, track->bitrate, track->fourcc, track->sample_rate, | |
750 | track->channels, track->blocksize, track->tag); | |
751 | for (j = 0; j < track->codec_private_size; j++) | |
752 | fprintf(out, "%02X", track->codec_private[j]); | |
753 | fprintf(out, "\" />\n"); | |
754 | index++; | |
755 | if (track->chunks != first_track->chunks) | |
756 | fprintf(stderr, "Mismatched number of audio chunks in %s and %s\n", | |
757 | track->name, first_track->name); | |
758 | } | |
759 | print_track_chunks(out, tracks, tracks->audio_track, "audio"); | |
760 | fprintf(out, "\t</StreamIndex>\n"); | |
761 | } | |
762 | fprintf(out, "</SmoothStreamingMedia>\n"); | |
763 | fclose(out); | |
764 | } | |
765 | ||
766 | static void clean_tracks(struct Tracks *tracks) | |
767 | { | |
768 | int i; | |
769 | for (i = 0; i < tracks->nb_tracks; i++) { | |
770 | av_freep(&tracks->tracks[i]->codec_private); | |
771 | av_freep(&tracks->tracks[i]->offsets); | |
772 | av_freep(&tracks->tracks[i]); | |
773 | } | |
774 | av_freep(&tracks->tracks); | |
775 | tracks->nb_tracks = 0; | |
776 | } | |
777 | ||
778 | int main(int argc, char **argv) | |
779 | { | |
780 | const char *basename = NULL; | |
781 | const char *path_prefix = "", *ismc_prefix = ""; | |
782 | const char *output_prefix = ""; | |
783 | char output_prefix_buf[2048]; | |
784 | int split = 0, ismf = 0, i; | |
785 | struct Tracks tracks = { 0, .video_track = -1, .audio_track = -1 }; | |
786 | ||
787 | av_register_all(); | |
788 | ||
789 | for (i = 1; i < argc; i++) { | |
790 | if (!strcmp(argv[i], "-n")) { | |
791 | basename = argv[i + 1]; | |
792 | i++; | |
793 | } else if (!strcmp(argv[i], "-path-prefix")) { | |
794 | path_prefix = argv[i + 1]; | |
795 | i++; | |
796 | } else if (!strcmp(argv[i], "-ismc-prefix")) { | |
797 | ismc_prefix = argv[i + 1]; | |
798 | i++; | |
799 | } else if (!strcmp(argv[i], "-output")) { | |
800 | output_prefix = argv[i + 1]; | |
801 | i++; | |
802 | if (output_prefix[strlen(output_prefix) - 1] != '/') { | |
803 | snprintf(output_prefix_buf, sizeof(output_prefix_buf), | |
804 | "%s/", output_prefix); | |
805 | output_prefix = output_prefix_buf; | |
806 | } | |
807 | } else if (!strcmp(argv[i], "-split")) { | |
808 | split = 1; | |
809 | } else if (!strcmp(argv[i], "-ismf")) { | |
810 | ismf = 1; | |
811 | } else if (argv[i][0] == '-') { | |
812 | return usage(argv[0], 1); | |
813 | } else { | |
814 | if (!basename) | |
815 | ismf = 0; | |
816 | if (handle_file(&tracks, argv[i], split, ismf, | |
817 | basename, output_prefix)) | |
818 | return 1; | |
819 | } | |
820 | } | |
821 | if (!tracks.nb_tracks || (!basename && !split)) | |
822 | return usage(argv[0], 1); | |
823 | ||
824 | if (!split) | |
825 | output_server_manifest(&tracks, basename, output_prefix, | |
826 | path_prefix, ismc_prefix); | |
827 | output_client_manifest(&tracks, basename, output_prefix, split); | |
828 | ||
829 | clean_tracks(&tracks); | |
830 | ||
831 | return 0; | |
832 | } |