replace AV_METADATA_IGNORE_CASE flag by a new AV_METADATA_MATCH_CASE flag
[libav.git] / libavformat / avienc.c
1 /*
2 * AVI muxer
3 * Copyright (c) 2000 Fabrice Bellard.
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21 #include "avformat.h"
22 #include "avi.h"
23 #include "riff.h"
24
25 /*
26 * TODO:
27 * - fill all fields if non streamed (nb_frames for example)
28 */
29
30 #if CONFIG_AVI_MUXER
31 typedef struct AVIIentry {
32 unsigned int flags, pos, len;
33 } AVIIentry;
34
35 #define AVI_INDEX_CLUSTER_SIZE 16384
36
37 typedef struct AVIIndex {
38 int64_t indx_start;
39 int entry;
40 int ents_allocated;
41 AVIIentry** cluster;
42 } AVIIndex;
43
44 typedef struct {
45 int64_t riff_start, movi_list, odml_list;
46 int64_t frames_hdr_all, frames_hdr_strm[MAX_STREAMS];
47 int audio_strm_length[MAX_STREAMS];
48 int riff_id;
49 int packet_count[MAX_STREAMS];
50
51 AVIIndex indexes[MAX_STREAMS];
52 } AVIContext;
53
54 static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id)
55 {
56 int cl = ent_id / AVI_INDEX_CLUSTER_SIZE;
57 int id = ent_id % AVI_INDEX_CLUSTER_SIZE;
58 return &idx->cluster[cl][id];
59 }
60
61 static int64_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
62 const char* riff_tag, const char* list_tag)
63 {
64 int64_t loff;
65 int i;
66
67 avi->riff_id++;
68 for (i=0; i<MAX_STREAMS; i++)
69 avi->indexes[i].entry = 0;
70
71 avi->riff_start = start_tag(pb, "RIFF");
72 put_tag(pb, riff_tag);
73 loff = start_tag(pb, "LIST");
74 put_tag(pb, list_tag);
75 return loff;
76 }
77
78 static char* avi_stream2fourcc(char* tag, int index, enum CodecType type)
79 {
80 tag[0] = '0';
81 tag[1] = '0' + index;
82 if (type == CODEC_TYPE_VIDEO) {
83 tag[2] = 'd';
84 tag[3] = 'c';
85 } else {
86 tag[2] = 'w';
87 tag[3] = 'b';
88 }
89 tag[4] = '\0';
90 return tag;
91 }
92
93 static void avi_write_info_tag(ByteIOContext *pb, const char *tag, const char *str)
94 {
95 int len = strlen(str);
96 if (len > 0) {
97 len++;
98 put_tag(pb, tag);
99 put_le32(pb, len);
100 put_strz(pb, str);
101 if (len & 1)
102 put_byte(pb, 0);
103 }
104 }
105
106 static void avi_write_info_tag2(AVFormatContext *s, const char *fourcc, const char *key1, const char *key2)
107 {
108 AVMetadataTag *tag= av_metadata_get(s->metadata, key1, NULL, 0);
109 if(!tag && key2)
110 tag= av_metadata_get(s->metadata, key2, NULL, 0);
111 if(tag)
112 avi_write_info_tag(s->pb, fourcc, tag->value);
113 }
114
115 static int avi_write_counters(AVFormatContext* s, int riff_id)
116 {
117 ByteIOContext *pb = s->pb;
118 AVIContext *avi = s->priv_data;
119 int n, au_byterate, au_ssize, au_scale, nb_frames = 0;
120 int64_t file_size;
121 AVCodecContext* stream;
122
123 file_size = url_ftell(pb);
124 for(n = 0; n < s->nb_streams; n++) {
125 assert(avi->frames_hdr_strm[n]);
126 stream = s->streams[n]->codec;
127 url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
128 ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
129 if(au_ssize == 0) {
130 put_le32(pb, avi->packet_count[n]);
131 } else {
132 put_le32(pb, avi->audio_strm_length[n] / au_ssize);
133 }
134 if(stream->codec_type == CODEC_TYPE_VIDEO)
135 nb_frames = FFMAX(nb_frames, avi->packet_count[n]);
136 }
137 if(riff_id == 1) {
138 assert(avi->frames_hdr_all);
139 url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
140 put_le32(pb, nb_frames);
141 }
142 url_fseek(pb, file_size, SEEK_SET);
143
144 return 0;
145 }
146
147 static int avi_write_header(AVFormatContext *s)
148 {
149 AVIContext *avi = s->priv_data;
150 ByteIOContext *pb = s->pb;
151 int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
152 AVCodecContext *stream, *video_enc;
153 int64_t list1, list2, strh, strf;
154
155 /* header list */
156 avi->riff_id = 0;
157 list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
158
159 /* avi header */
160 put_tag(pb, "avih");
161 put_le32(pb, 14 * 4);
162 bitrate = 0;
163
164 video_enc = NULL;
165 for(n=0;n<s->nb_streams;n++) {
166 stream = s->streams[n]->codec;
167 bitrate += stream->bit_rate;
168 if (stream->codec_type == CODEC_TYPE_VIDEO)
169 video_enc = stream;
170 }
171
172 nb_frames = 0;
173
174 if(video_enc){
175 put_le32(pb, (uint32_t)(INT64_C(1000000) * video_enc->time_base.num / video_enc->time_base.den));
176 } else {
177 put_le32(pb, 0);
178 }
179 put_le32(pb, bitrate / 8); /* XXX: not quite exact */
180 put_le32(pb, 0); /* padding */
181 if (url_is_streamed(pb))
182 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_ISINTERLEAVED); /* flags */
183 else
184 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
185 avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
186 put_le32(pb, nb_frames); /* nb frames, filled later */
187 put_le32(pb, 0); /* initial frame */
188 put_le32(pb, s->nb_streams); /* nb streams */
189 put_le32(pb, 1024 * 1024); /* suggested buffer size */
190 if(video_enc){
191 put_le32(pb, video_enc->width);
192 put_le32(pb, video_enc->height);
193 } else {
194 put_le32(pb, 0);
195 put_le32(pb, 0);
196 }
197 put_le32(pb, 0); /* reserved */
198 put_le32(pb, 0); /* reserved */
199 put_le32(pb, 0); /* reserved */
200 put_le32(pb, 0); /* reserved */
201
202 /* stream list */
203 for(i=0;i<n;i++) {
204 list2 = start_tag(pb, "LIST");
205 put_tag(pb, "strl");
206
207 stream = s->streams[i]->codec;
208
209 /* stream generic header */
210 strh = start_tag(pb, "strh");
211 switch(stream->codec_type) {
212 case CODEC_TYPE_VIDEO: put_tag(pb, "vids"); break;
213 case CODEC_TYPE_AUDIO: put_tag(pb, "auds"); break;
214 // case CODEC_TYPE_TEXT : put_tag(pb, "txts"); break;
215 case CODEC_TYPE_DATA : put_tag(pb, "dats"); break;
216 }
217 if(stream->codec_type == CODEC_TYPE_VIDEO)
218 put_le32(pb, stream->codec_tag);
219 else
220 put_le32(pb, 1);
221 put_le32(pb, 0); /* flags */
222 put_le16(pb, 0); /* priority */
223 put_le16(pb, 0); /* language */
224 put_le32(pb, 0); /* initial frame */
225
226 ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
227
228 put_le32(pb, au_scale); /* scale */
229 put_le32(pb, au_byterate); /* rate */
230 av_set_pts_info(s->streams[i], 64, au_scale, au_byterate);
231
232 put_le32(pb, 0); /* start */
233 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
234 if (url_is_streamed(pb))
235 put_le32(pb, AVI_MAX_RIFF_SIZE); /* FIXME: this may be broken, but who cares */
236 else
237 put_le32(pb, 0); /* length, XXX: filled later */
238
239 /* suggested buffer size */ //FIXME set at the end to largest chunk
240 if(stream->codec_type == CODEC_TYPE_VIDEO)
241 put_le32(pb, 1024 * 1024);
242 else if(stream->codec_type == CODEC_TYPE_AUDIO)
243 put_le32(pb, 12 * 1024);
244 else
245 put_le32(pb, 0);
246 put_le32(pb, -1); /* quality */
247 put_le32(pb, au_ssize); /* sample size */
248 put_le32(pb, 0);
249 put_le16(pb, stream->width);
250 put_le16(pb, stream->height);
251 end_tag(pb, strh);
252
253 if(stream->codec_type != CODEC_TYPE_DATA){
254 strf = start_tag(pb, "strf");
255 switch(stream->codec_type) {
256 case CODEC_TYPE_VIDEO:
257 put_bmp_header(pb, stream, codec_bmp_tags, 0);
258 break;
259 case CODEC_TYPE_AUDIO:
260 if (put_wav_header(pb, stream) < 0) {
261 return -1;
262 }
263 break;
264 default:
265 return -1;
266 }
267 end_tag(pb, strf);
268 }
269
270 if (!url_is_streamed(pb)) {
271 unsigned char tag[5];
272 int j;
273
274 /* Starting to lay out AVI OpenDML master index.
275 * We want to make it JUNK entry for now, since we'd
276 * like to get away without making AVI an OpenDML one
277 * for compatibility reasons.
278 */
279 avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
280 avi->indexes[i].indx_start = start_tag(pb, "JUNK");
281 put_le16(pb, 4); /* wLongsPerEntry */
282 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
283 put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
284 put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
285 put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
286 /* dwChunkId */
287 put_le64(pb, 0); /* dwReserved[3]
288 put_le32(pb, 0); Must be 0. */
289 for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
290 put_le64(pb, 0);
291 end_tag(pb, avi->indexes[i].indx_start);
292 }
293
294 if( stream->codec_type == CODEC_TYPE_VIDEO
295 && s->streams[i]->sample_aspect_ratio.num>0
296 && s->streams[i]->sample_aspect_ratio.den>0){
297 int vprp= start_tag(pb, "vprp");
298 AVRational dar = av_mul_q(s->streams[i]->sample_aspect_ratio,
299 (AVRational){stream->width, stream->height});
300 int num, den;
301 av_reduce(&num, &den, dar.num, dar.den, 0xFFFF);
302
303 put_le32(pb, 0); //video format = unknown
304 put_le32(pb, 0); //video standard= unknown
305 put_le32(pb, lrintf(1.0/av_q2d(stream->time_base)));
306 put_le32(pb, stream->width );
307 put_le32(pb, stream->height);
308 put_le16(pb, den);
309 put_le16(pb, num);
310 put_le32(pb, stream->width );
311 put_le32(pb, stream->height);
312 put_le32(pb, 1); //progressive FIXME
313
314 put_le32(pb, stream->height);
315 put_le32(pb, stream->width );
316 put_le32(pb, stream->height);
317 put_le32(pb, stream->width );
318 put_le32(pb, 0);
319 put_le32(pb, 0);
320
321 put_le32(pb, 0);
322 put_le32(pb, 0);
323 end_tag(pb, vprp);
324 }
325
326 end_tag(pb, list2);
327 }
328
329 if (!url_is_streamed(pb)) {
330 /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
331 avi->odml_list = start_tag(pb, "JUNK");
332 put_tag(pb, "odml");
333 put_tag(pb, "dmlh");
334 put_le32(pb, 248);
335 for (i = 0; i < 248; i+= 4)
336 put_le32(pb, 0);
337 end_tag(pb, avi->odml_list);
338 }
339
340 end_tag(pb, list1);
341
342 list2 = start_tag(pb, "LIST");
343 put_tag(pb, "INFO");
344 avi_write_info_tag2(s, "INAM", "Title", NULL);
345 avi_write_info_tag2(s, "IART", "Artist", "Author");
346 avi_write_info_tag2(s, "ICOP", "Copyright", NULL);
347 avi_write_info_tag2(s, "ICMT", "Comment", NULL);
348 avi_write_info_tag2(s, "IPRD", "Album", NULL);
349 avi_write_info_tag2(s, "IGNR", "Genre", NULL);
350 avi_write_info_tag2(s, "IPRT", "Track", NULL);
351 if(!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
352 avi_write_info_tag(pb, "ISFT", LIBAVFORMAT_IDENT);
353 end_tag(pb, list2);
354
355 /* some padding for easier tag editing */
356 list2 = start_tag(pb, "JUNK");
357 for (i = 0; i < 1016; i += 4)
358 put_le32(pb, 0);
359 end_tag(pb, list2);
360
361 avi->movi_list = start_tag(pb, "LIST");
362 put_tag(pb, "movi");
363
364 put_flush_packet(pb);
365
366 return 0;
367 }
368
369 static int avi_write_ix(AVFormatContext *s)
370 {
371 ByteIOContext *pb = s->pb;
372 AVIContext *avi = s->priv_data;
373 char tag[5];
374 char ix_tag[] = "ix00";
375 int i, j;
376
377 assert(!url_is_streamed(pb));
378
379 if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
380 return -1;
381
382 for (i=0;i<s->nb_streams;i++) {
383 int64_t ix, pos;
384
385 avi_stream2fourcc(&tag[0], i, s->streams[i]->codec->codec_type);
386 ix_tag[3] = '0' + i;
387
388 /* Writing AVI OpenDML leaf index chunk */
389 ix = url_ftell(pb);
390 put_tag(pb, &ix_tag[0]); /* ix?? */
391 put_le32(pb, avi->indexes[i].entry * 8 + 24);
392 /* chunk size */
393 put_le16(pb, 2); /* wLongsPerEntry */
394 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
395 put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
396 put_le32(pb, avi->indexes[i].entry);
397 /* nEntriesInUse */
398 put_tag(pb, &tag[0]); /* dwChunkId */
399 put_le64(pb, avi->movi_list);/* qwBaseOffset */
400 put_le32(pb, 0); /* dwReserved_3 (must be 0) */
401
402 for (j=0; j<avi->indexes[i].entry; j++) {
403 AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
404 put_le32(pb, ie->pos + 8);
405 put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
406 (ie->flags & 0x10 ? 0 : 0x80000000));
407 }
408 put_flush_packet(pb);
409 pos = url_ftell(pb);
410
411 /* Updating one entry in the AVI OpenDML master index */
412 url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
413 put_tag(pb, "indx"); /* enabling this entry */
414 url_fskip(pb, 8);
415 put_le32(pb, avi->riff_id); /* nEntriesInUse */
416 url_fskip(pb, 16*avi->riff_id);
417 put_le64(pb, ix); /* qwOffset */
418 put_le32(pb, pos - ix); /* dwSize */
419 put_le32(pb, avi->indexes[i].entry); /* dwDuration */
420
421 url_fseek(pb, pos, SEEK_SET);
422 }
423 return 0;
424 }
425
426 static int avi_write_idx1(AVFormatContext *s)
427 {
428 ByteIOContext *pb = s->pb;
429 AVIContext *avi = s->priv_data;
430 int64_t idx_chunk;
431 int i;
432 char tag[5];
433
434 if (!url_is_streamed(pb)) {
435 AVIIentry* ie = 0, *tie;
436 int entry[MAX_STREAMS];
437 int empty, stream_id = -1;
438
439 idx_chunk = start_tag(pb, "idx1");
440 memset(&entry[0], 0, sizeof(entry));
441 do {
442 empty = 1;
443 for (i=0; i<s->nb_streams; i++) {
444 if (avi->indexes[i].entry <= entry[i])
445 continue;
446
447 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
448 if (empty || tie->pos < ie->pos) {
449 ie = tie;
450 stream_id = i;
451 }
452 empty = 0;
453 }
454 if (!empty) {
455 avi_stream2fourcc(&tag[0], stream_id,
456 s->streams[stream_id]->codec->codec_type);
457 put_tag(pb, &tag[0]);
458 put_le32(pb, ie->flags);
459 put_le32(pb, ie->pos);
460 put_le32(pb, ie->len);
461 entry[stream_id]++;
462 }
463 } while (!empty);
464 end_tag(pb, idx_chunk);
465
466 avi_write_counters(s, avi->riff_id);
467 }
468 return 0;
469 }
470
471 static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
472 {
473 AVIContext *avi = s->priv_data;
474 ByteIOContext *pb = s->pb;
475 unsigned char tag[5];
476 unsigned int flags=0;
477 const int stream_index= pkt->stream_index;
478 AVCodecContext *enc= s->streams[stream_index]->codec;
479 int size= pkt->size;
480
481 // av_log(s, AV_LOG_DEBUG, "%"PRId64" %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
482 while(enc->block_align==0 && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){
483 AVPacket empty_packet;
484
485 av_init_packet(&empty_packet);
486 empty_packet.size= 0;
487 empty_packet.data= NULL;
488 empty_packet.stream_index= stream_index;
489 avi_write_packet(s, &empty_packet);
490 // av_log(s, AV_LOG_DEBUG, "dup %"PRId64" %d\n", pkt->dts, avi->packet_count[stream_index]);
491 }
492 avi->packet_count[stream_index]++;
493
494 // Make sure to put an OpenDML chunk when the file size exceeds the limits
495 if (!url_is_streamed(pb) &&
496 (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) {
497
498 avi_write_ix(s);
499 end_tag(pb, avi->movi_list);
500
501 if (avi->riff_id == 1)
502 avi_write_idx1(s);
503
504 end_tag(pb, avi->riff_start);
505 avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
506 }
507
508 avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
509 if(pkt->flags&PKT_FLAG_KEY)
510 flags = 0x10;
511 if (enc->codec_type == CODEC_TYPE_AUDIO) {
512 avi->audio_strm_length[stream_index] += size;
513 }
514
515 if (!url_is_streamed(s->pb)) {
516 AVIIndex* idx = &avi->indexes[stream_index];
517 int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
518 int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
519 if (idx->ents_allocated <= idx->entry) {
520 idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
521 if (!idx->cluster)
522 return -1;
523 idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
524 if (!idx->cluster[cl])
525 return -1;
526 idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
527 }
528
529 idx->cluster[cl][id].flags = flags;
530 idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
531 idx->cluster[cl][id].len = size;
532 idx->entry++;
533 }
534
535 put_buffer(pb, tag, 4);
536 put_le32(pb, size);
537 put_buffer(pb, pkt->data, size);
538 if (size & 1)
539 put_byte(pb, 0);
540
541 put_flush_packet(pb);
542 return 0;
543 }
544
545 static int avi_write_trailer(AVFormatContext *s)
546 {
547 AVIContext *avi = s->priv_data;
548 ByteIOContext *pb = s->pb;
549 int res = 0;
550 int i, j, n, nb_frames;
551 int64_t file_size;
552
553 if (!url_is_streamed(pb)){
554 if (avi->riff_id == 1) {
555 end_tag(pb, avi->movi_list);
556 res = avi_write_idx1(s);
557 end_tag(pb, avi->riff_start);
558 } else {
559 avi_write_ix(s);
560 end_tag(pb, avi->movi_list);
561 end_tag(pb, avi->riff_start);
562
563 file_size = url_ftell(pb);
564 url_fseek(pb, avi->odml_list - 8, SEEK_SET);
565 put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
566 url_fskip(pb, 16);
567
568 for (n=nb_frames=0;n<s->nb_streams;n++) {
569 AVCodecContext *stream = s->streams[n]->codec;
570 if (stream->codec_type == CODEC_TYPE_VIDEO) {
571 if (nb_frames < avi->packet_count[n])
572 nb_frames = avi->packet_count[n];
573 } else {
574 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
575 nb_frames += avi->packet_count[n];
576 }
577 }
578 }
579 put_le32(pb, nb_frames);
580 url_fseek(pb, file_size, SEEK_SET);
581
582 avi_write_counters(s, avi->riff_id);
583 }
584 }
585 put_flush_packet(pb);
586
587 for (i=0; i<MAX_STREAMS; i++) {
588 for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
589 av_free(avi->indexes[i].cluster[j]);
590 av_free(avi->indexes[i].cluster);
591 avi->indexes[i].cluster = NULL;
592 avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
593 }
594
595 return res;
596 }
597
598 AVOutputFormat avi_muxer = {
599 "avi",
600 NULL_IF_CONFIG_SMALL("AVI format"),
601 "video/x-msvideo",
602 "avi",
603 sizeof(AVIContext),
604 CODEC_ID_MP2,
605 CODEC_ID_MPEG4,
606 avi_write_header,
607 avi_write_packet,
608 avi_write_trailer,
609 .codec_tag= (const AVCodecTag* const []){codec_bmp_tags, codec_wav_tags, 0},
610 };
611 #endif //CONFIG_AVI_MUXER