3 * Copyright (c) 2000 Fabrice Bellard.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 * - fill all fields if non streamed (nb_frames for example)
27 typedef struct AVIIentry {
28 unsigned int flags, pos, len;
31 #define AVI_INDEX_CLUSTER_SIZE 16384
33 typedef struct AVIIndex {
41 offset_t riff_start, movi_list, odml_list;
42 offset_t frames_hdr_all, frames_hdr_strm[MAX_STREAMS];
43 int audio_strm_length[MAX_STREAMS];
46 AVIIndex indexes[MAX_STREAMS];
49 static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id)
51 int cl = ent_id / AVI_INDEX_CLUSTER_SIZE;
52 int id = ent_id % AVI_INDEX_CLUSTER_SIZE;
53 return &idx->cluster[cl][id];
56 offset_t start_tag(ByteIOContext *pb, const char *tag)
63 void end_tag(ByteIOContext *pb, offset_t start)
68 url_fseek(pb, start - 4, SEEK_SET);
69 put_le32(pb, (uint32_t)(pos - start));
70 url_fseek(pb, pos, SEEK_SET);
73 /* Note: when encoding, the first matching tag is used, so order is
74 important if multiple tags possible for a given codec. */
75 const CodecTag codec_bmp_tags[] = {
76 { CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
77 { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
78 { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
80 /* added based on MPlayer */
81 { CODEC_ID_H263I, MKTAG('i', '2', '6', '3') },
82 { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
83 { CODEC_ID_H263P, MKTAG('h', '2', '6', '3') },
84 { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
86 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X'), .invalid_asf = 1 },
87 { CODEC_ID_MPEG4, MKTAG('d', 'i', 'v', 'x'), .invalid_asf = 1 },
88 { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0'), .invalid_asf = 1 },
89 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D'), .invalid_asf = 1 },
90 { CODEC_ID_MPEG4, MKTAG('x', 'v', 'i', 'd'), .invalid_asf = 1 },
91 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 's'), .invalid_asf = 1 },
92 { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
93 { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
94 { CODEC_ID_MPEG4, MKTAG('m', '4', 's', '2') },
95 { CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) }, /* some broken avi use this */
97 /* added based on MPlayer */
98 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
99 { CODEC_ID_MPEG4, MKTAG('d', 'i', 'v', '1') },
100 { CODEC_ID_MPEG4, MKTAG('X', 'v', 'i', 'D') },
101 { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
102 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
103 { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
105 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */
106 { CODEC_ID_MSMPEG4V3, MKTAG('d', 'i', 'v', '3'), .invalid_asf = 1 },
107 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
109 /* added based on MPlayer */
110 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') },
111 { CODEC_ID_MSMPEG4V3, MKTAG('m', 'p', 'g', '3') },
112 { CODEC_ID_MSMPEG4V3, MKTAG('m', 'p', '4', '3') },
113 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') },
114 { CODEC_ID_MSMPEG4V3, MKTAG('d', 'i', 'v', '5') },
115 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') },
116 { CODEC_ID_MSMPEG4V3, MKTAG('d', 'i', 'v', '6') },
117 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') },
118 { CODEC_ID_MSMPEG4V3, MKTAG('d', 'i', 'v', '4') },
119 { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') },
120 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') },
121 { CODEC_ID_MSMPEG4V3, MKTAG('c', 'o', 'l', '1') },
122 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') },
123 { CODEC_ID_MSMPEG4V3, MKTAG('c', 'o', 'l', '0') },
125 { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
127 /* added based on MPlayer */
128 { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
129 { CODEC_ID_MSMPEG4V2, MKTAG('d', 'i', 'v', '2') },
130 { CODEC_ID_MSMPEG4V2, MKTAG('m', 'p', '4', '2') },
132 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
134 /* added based on MPlayer */
135 { CODEC_ID_MSMPEG4V1, MKTAG('D', 'I', 'V', '4') },
136 { CODEC_ID_MSMPEG4V1, MKTAG('d', 'i', 'v', '4') },
137 { CODEC_ID_MSMPEG4V1, MKTAG('m', 'p', 'g', '4') },
139 { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
141 /* added based on MPlayer */
142 { CODEC_ID_WMV1, MKTAG('w', 'm', 'v', '1') },
144 { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
145 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
146 { CODEC_ID_DVVIDEO, MKTAG('D', 'V', 'S', 'D') },
147 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
148 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
149 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
150 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
151 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
152 { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
153 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
154 { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'g') },
155 { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
156 { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
157 { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
158 { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
159 { CODEC_ID_HUFFYUV, MKTAG('h', 'f', 'y', 'u') },
160 { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
161 { CODEC_ID_CYUV, MKTAG('c', 'y', 'u', 'v') },
162 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
163 { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
164 { CODEC_ID_INDEO3, MKTAG('i', 'v', '3', '1') },
165 { CODEC_ID_INDEO3, MKTAG('i', 'v', '3', '2') },
166 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
167 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
168 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
169 { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
170 { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
171 { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
175 unsigned int codec_get_tag(const CodecTag *tags, int id)
177 while (tags->id != 0) {
185 static unsigned int codec_get_asf_tag(const CodecTag *tags, int id)
187 while (tags->id != 0) {
188 if (!tags->invalid_asf && tags->id == id)
195 enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
197 while (tags->id != 0) {
198 if (tags->tag == tag)
202 return CODEC_ID_NONE;
205 unsigned int codec_get_bmp_tag(int id)
207 return codec_get_tag(codec_bmp_tags, id);
210 /* BITMAPINFOHEADER header */
211 void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
213 put_le32(pb, 40 + enc->extradata_size); /* size */
214 put_le32(pb, enc->width);
215 put_le32(pb, enc->height);
216 put_le16(pb, 1); /* planes */
218 put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
219 /* compression type */
220 put_le32(pb, for_asf ? codec_get_asf_tag(tags, enc->codec_id) : enc->codec_tag);
221 put_le32(pb, enc->width * enc->height * 3);
227 put_buffer(pb, enc->extradata, enc->extradata_size);
229 if (enc->extradata_size & 1)
233 static void parse_specific_params(AVCodecContext *stream, int *au_byterate, int *au_ssize, int *au_scale)
235 switch(stream->codec_id) {
236 case CODEC_ID_PCM_S16LE:
237 *au_scale = *au_ssize = 2*stream->channels;
238 *au_byterate = *au_ssize * stream->sample_rate;
240 case CODEC_ID_PCM_U8:
241 case CODEC_ID_PCM_ALAW:
242 case CODEC_ID_PCM_MULAW:
243 *au_scale = *au_ssize = stream->channels;
244 *au_byterate = *au_ssize * stream->sample_rate;
249 *au_byterate = stream->bit_rate / 8;
250 case CODEC_ID_MP3LAME:
253 *au_byterate = stream->bit_rate / 8;
257 *au_byterate = stream->bit_rate / 8;
262 static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
263 const char* riff_tag, const char* list_tag)
269 for (i=0; i<MAX_STREAMS; i++)
270 avi->indexes[i].entry = 0;
272 avi->riff_start = start_tag(pb, "RIFF");
273 put_tag(pb, riff_tag);
274 loff = start_tag(pb, "LIST");
275 put_tag(pb, list_tag);
279 static unsigned char* avi_stream2fourcc(unsigned char* tag, int index,
283 tag[1] = '0' + index;
284 if (type == CODEC_TYPE_VIDEO) {
295 static int avi_write_header(AVFormatContext *s)
297 AVIContext *avi = s->priv_data;
298 ByteIOContext *pb = &s->pb;
299 int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
300 AVCodecContext *stream, *video_enc;
301 offset_t list1, list2, strh, strf;
305 list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
309 put_le32(pb, 14 * 4);
313 for(n=0;n<s->nb_streams;n++) {
314 stream = &s->streams[n]->codec;
315 bitrate += stream->bit_rate;
316 if (stream->codec_type == CODEC_TYPE_VIDEO)
323 put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->frame_rate_base / video_enc->frame_rate));
327 put_le32(pb, bitrate / 8); /* XXX: not quite exact */
328 put_le32(pb, 0); /* padding */
329 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
330 avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
331 put_le32(pb, nb_frames); /* nb frames, filled later */
332 put_le32(pb, 0); /* initial frame */
333 put_le32(pb, s->nb_streams); /* nb streams */
334 put_le32(pb, 1024 * 1024); /* suggested buffer size */
336 put_le32(pb, video_enc->width);
337 put_le32(pb, video_enc->height);
342 put_le32(pb, 0); /* reserved */
343 put_le32(pb, 0); /* reserved */
344 put_le32(pb, 0); /* reserved */
345 put_le32(pb, 0); /* reserved */
349 list2 = start_tag(pb, "LIST");
352 stream = &s->streams[i]->codec;
354 /* FourCC should really be set by the codec itself */
355 if (! stream->codec_tag) {
356 stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
359 /* stream generic header */
360 strh = start_tag(pb, "strh");
361 switch(stream->codec_type) {
362 case CODEC_TYPE_VIDEO:
364 put_le32(pb, stream->codec_tag);
365 put_le32(pb, 0); /* flags */
366 put_le16(pb, 0); /* priority */
367 put_le16(pb, 0); /* language */
368 put_le32(pb, 0); /* initial frame */
370 put_le32(pb, stream->frame_rate_base); /* scale */
371 put_le32(pb, stream->frame_rate); /* rate */
373 put_le32(pb, 0); /* start */
374 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
375 put_le32(pb, nb_frames); /* length, XXX: fill later */
376 put_le32(pb, 1024 * 1024); /* suggested buffer size */
377 put_le32(pb, -1); /* quality */
378 put_le32(pb, stream->width * stream->height * 3); /* sample size */
381 put_le16(pb, stream->width);
382 put_le16(pb, stream->height);
384 case CODEC_TYPE_AUDIO:
386 put_le32(pb, 1); /* tag */
387 put_le32(pb, 0); /* flags */
388 put_le16(pb, 0); /* priority */
389 put_le16(pb, 0); /* language */
390 put_le32(pb, 0); /* initial frame */
391 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
392 put_le32(pb, au_scale); /* scale */
393 put_le32(pb, au_byterate); /* rate */
394 put_le32(pb, 0); /* start */
395 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
396 put_le32(pb, 0); /* length, XXX: filled later */
397 put_le32(pb, 12 * 1024); /* suggested buffer size */
398 put_le32(pb, -1); /* quality */
399 put_le32(pb, au_ssize); /* sample size */
408 strf = start_tag(pb, "strf");
409 switch(stream->codec_type) {
410 case CODEC_TYPE_VIDEO:
411 put_bmp_header(pb, stream, codec_bmp_tags, 0);
413 case CODEC_TYPE_AUDIO:
414 if (put_wav_header(pb, stream) < 0) {
424 if (!url_is_streamed(pb)) {
425 unsigned char tag[5];
428 /* Starting to lay out AVI OpenDML master index.
429 * We want to make it JUNK entry for now, since we'd
430 * like to get away without making AVI an OpenDML one
431 * for compatibility reasons.
433 avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
434 avi->indexes[i].indx_start = start_tag(pb, "JUNK");
435 put_le16(pb, 4); /* wLongsPerEntry */
436 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
437 put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
438 put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
439 put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
441 put_le64(pb, 0); /* dwReserved[3]
442 put_le32(pb, 0); Must be 0. */
443 for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
445 end_tag(pb, avi->indexes[i].indx_start);
451 if (!url_is_streamed(pb)) {
452 /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
453 avi->odml_list = start_tag(pb, "JUNK");
457 for (i = 0; i < 248; i+= 4)
459 end_tag(pb, avi->odml_list);
464 avi->movi_list = start_tag(pb, "LIST");
467 put_flush_packet(pb);
472 static int avi_write_ix(AVFormatContext *s)
474 ByteIOContext *pb = &s->pb;
475 AVIContext *avi = s->priv_data;
476 unsigned char tag[5];
477 unsigned char ix_tag[] = "ix00";
480 if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
483 for (i=0;i<s->nb_streams;i++) {
486 avi_stream2fourcc(&tag[0], i, s->streams[i]->codec.codec_type);
489 /* Writing AVI OpenDML leaf index chunk */
491 put_tag(pb, &ix_tag[0]); /* ix?? */
492 put_le32(pb, avi->indexes[i].entry * 8 + 24);
494 put_le16(pb, 2); /* wLongsPerEntry */
495 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
496 put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
497 put_le32(pb, avi->indexes[i].entry);
499 put_tag(pb, &tag[0]); /* dwChunkId */
500 put_le64(pb, avi->movi_list);/* qwBaseOffset */
501 put_le32(pb, 0); /* dwReserved_3 (must be 0) */
503 for (j=0; j<avi->indexes[i].entry; j++) {
504 AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
505 put_le32(pb, ie->pos + 8);
506 put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
507 (ie->flags & 0x10 ? 0 : 0x80000000));
509 put_flush_packet(pb);
512 /* Updating one entry in the AVI OpenDML master index */
513 url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
514 put_tag(pb, "indx"); /* enabling this entry */
516 put_le32(pb, avi->riff_id); /* nEntriesInUse */
517 url_fskip(pb, 16*avi->riff_id);
518 put_le64(pb, ix); /* qwOffset */
519 put_le32(pb, pos - ix); /* dwSize */
520 put_le32(pb, avi->indexes[i].entry); /* dwDuration */
522 url_fseek(pb, pos, SEEK_SET);
527 static int avi_write_idx1(AVFormatContext *s)
529 ByteIOContext *pb = &s->pb;
530 AVIContext *avi = s->priv_data;
531 offset_t file_size, idx_chunk;
532 int i, n, nb_frames, au_byterate, au_ssize, au_scale;
533 AVCodecContext *stream;
534 unsigned char tag[5];
536 if (!url_is_streamed(pb)) {
537 AVIIentry* ie = 0, *tie;
538 int entry[MAX_STREAMS];
539 int empty, stream_id = -1;
541 idx_chunk = start_tag(pb, "idx1");
542 memset(&entry[0], 0, sizeof(entry));
545 for (i=0; i<s->nb_streams; i++) {
546 if (avi->indexes[i].entry <= entry[i])
549 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
550 if (empty || tie->pos < ie->pos) {
557 avi_stream2fourcc(&tag[0], stream_id,
558 s->streams[stream_id]->codec.codec_type);
559 put_tag(pb, &tag[0]);
560 put_le32(pb, ie->flags);
561 put_le32(pb, ie->pos);
562 put_le32(pb, ie->len);
566 end_tag(pb, idx_chunk);
568 /* Fill in frame/sample counters */
569 file_size = url_ftell(pb);
571 for(n=0;n<s->nb_streams;n++) {
572 if (avi->frames_hdr_strm[n] != 0) {
573 stream = &s->streams[n]->codec;
574 url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
575 if (stream->codec_type == CODEC_TYPE_VIDEO) {
576 put_le32(pb, stream->frame_number);
577 if (nb_frames < stream->frame_number)
578 nb_frames = stream->frame_number;
580 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3LAME) {
581 put_le32(pb, stream->frame_number);
582 nb_frames += stream->frame_number;
584 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
585 put_le32(pb, avi->audio_strm_length[n] / au_ssize);
590 if (avi->frames_hdr_all != 0) {
591 url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
592 put_le32(pb, nb_frames);
594 url_fseek(pb, file_size, SEEK_SET);
599 static int avi_write_packet(AVFormatContext *s, int stream_index,
600 uint8_t *buf, int size, int force_pts)
602 AVIContext *avi = s->priv_data;
603 ByteIOContext *pb = &s->pb;
604 unsigned char tag[5];
608 if (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE) {
610 end_tag(pb, avi->movi_list);
612 if (avi->riff_id == 1)
615 end_tag(pb, avi->riff_start);
616 avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
619 enc = &s->streams[stream_index]->codec;
620 avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
621 if (enc->codec_type == CODEC_TYPE_AUDIO) {
622 avi->audio_strm_length[stream_index] += size;
625 flags = enc->coded_frame->key_frame ? 0x10 : 0x00;
627 if (!url_is_streamed(&s->pb)) {
628 AVIIndex* idx = &avi->indexes[stream_index];
629 int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
630 int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
631 if (idx->ents_allocated <= idx->entry) {
632 idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
635 idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
636 if (!idx->cluster[cl])
638 idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
641 idx->cluster[cl][id].flags = flags;
642 idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
643 idx->cluster[cl][id].len = size;
647 put_buffer(pb, tag, 4);
649 put_buffer(pb, buf, size);
653 put_flush_packet(pb);
657 static int avi_write_trailer(AVFormatContext *s)
659 AVIContext *avi = s->priv_data;
660 ByteIOContext *pb = &s->pb;
662 int i, j, n, nb_frames;
665 if (avi->riff_id == 1) {
666 end_tag(pb, avi->movi_list);
667 res = avi_write_idx1(s);
668 end_tag(pb, avi->riff_start);
671 end_tag(pb, avi->movi_list);
672 end_tag(pb, avi->riff_start);
674 file_size = url_ftell(pb);
675 url_fseek(pb, avi->odml_list - 8, SEEK_SET);
676 put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
679 for (n=nb_frames=0;n<s->nb_streams;n++) {
680 AVCodecContext *stream = &s->streams[n]->codec;
681 if (stream->codec_type == CODEC_TYPE_VIDEO) {
682 if (nb_frames < stream->frame_number)
683 nb_frames = stream->frame_number;
685 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3LAME) {
686 nb_frames += stream->frame_number;
690 put_le32(pb, nb_frames);
691 url_fseek(pb, file_size, SEEK_SET);
693 put_flush_packet(pb);
695 for (i=0; i<MAX_STREAMS; i++) {
696 for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
697 av_free(avi->indexes[i].cluster[j]);
698 av_free(avi->indexes[i].cluster);
699 avi->indexes[i].cluster = NULL;
700 avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
706 static AVOutputFormat avi_oformat = {
719 int avienc_init(void)
721 av_register_output_format(&avi_oformat);