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 #ifdef CONFIG_ENCODERS
28 typedef struct AVIIentry {
29 unsigned int flags, pos, len;
32 #define AVI_INDEX_CLUSTER_SIZE 16384
34 typedef struct AVIIndex {
42 offset_t riff_start, movi_list, odml_list;
43 offset_t frames_hdr_all, frames_hdr_strm[MAX_STREAMS];
44 int audio_strm_length[MAX_STREAMS];
46 int packet_count[MAX_STREAMS];
48 AVIIndex indexes[MAX_STREAMS];
51 static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id)
53 int cl = ent_id / AVI_INDEX_CLUSTER_SIZE;
54 int id = ent_id % AVI_INDEX_CLUSTER_SIZE;
55 return &idx->cluster[cl][id];
58 offset_t start_tag(ByteIOContext *pb, const char *tag)
65 void end_tag(ByteIOContext *pb, offset_t start)
70 url_fseek(pb, start - 4, SEEK_SET);
71 put_le32(pb, (uint32_t)(pos - start));
72 url_fseek(pb, pos, SEEK_SET);
74 #endif //CONFIG_ENCODERS
76 /* Note: when encoding, the first matching tag is used, so order is
77 important if multiple tags possible for a given codec. */
78 const CodecTag codec_bmp_tags[] = {
79 { CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
81 { CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
82 { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
83 { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
85 /* added based on MPlayer */
86 { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
87 { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
89 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X'), .invalid_asf = 1 },
90 { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0'), .invalid_asf = 1 },
91 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D'), .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(0x04, 0, 0, 0) }, /* some broken avi use this */
96 /* added based on MPlayer */
97 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
98 { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
99 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
100 { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
102 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */
103 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
105 /* added based on MPlayer */
106 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') },
107 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') },
108 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') },
109 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') },
110 { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') },
111 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') },
112 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') },
114 { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
116 /* added based on MPlayer */
117 { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
119 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
121 { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
123 /* added based on MPlayer */
124 { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
125 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
126 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
127 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
128 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
129 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
130 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
131 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') },
132 { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
133 { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
134 { CODEC_ID_MPEG1VIDEO, 0x10000001 },
135 { CODEC_ID_MPEG2VIDEO, 0x10000002 },
136 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
137 { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
138 { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
139 { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
140 { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
141 { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
142 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
143 { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
144 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
145 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
146 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
147 { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
148 { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
149 { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
150 { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
151 { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
152 { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
153 { CODEC_ID_MSRLE, MKTAG(0x1, 0x0, 0x0, 0x0) },
154 { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
155 { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
156 { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
157 { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
158 { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
159 { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
160 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
161 { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
162 { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
163 { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
164 { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
165 { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
166 { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
167 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
168 { CODEC_ID_RAWVIDEO, 0 },
172 unsigned int codec_get_tag(const CodecTag *tags, int id)
174 while (tags->id != 0) {
182 static unsigned int codec_get_asf_tag(const CodecTag *tags, int id)
184 while (tags->id != 0) {
185 if (!tags->invalid_asf && tags->id == id)
192 enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
194 while (tags->id != 0) {
195 if( toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF)
196 && toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF)
197 && toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF)
198 && toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF))
202 return CODEC_ID_NONE;
205 unsigned int codec_get_bmp_tag(int id)
207 return codec_get_tag(codec_bmp_tags, id);
210 unsigned int codec_get_wav_tag(int id)
212 return codec_get_tag(codec_wav_tags, id);
215 enum CodecID codec_get_bmp_id(unsigned int tag)
217 return codec_get_id(codec_bmp_tags, tag);
220 enum CodecID codec_get_wav_id(unsigned int tag)
222 return codec_get_id(codec_wav_tags, tag);
225 #ifdef CONFIG_ENCODERS
226 /* BITMAPINFOHEADER header */
227 void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
229 put_le32(pb, 40 + enc->extradata_size); /* size */
230 put_le32(pb, enc->width);
231 put_le32(pb, enc->height);
232 put_le16(pb, 1); /* planes */
234 put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
235 /* compression type */
236 put_le32(pb, for_asf ? codec_get_asf_tag(tags, enc->codec_id) : enc->codec_tag);
237 put_le32(pb, enc->width * enc->height * 3);
243 put_buffer(pb, enc->extradata, enc->extradata_size);
245 if (enc->extradata_size & 1)
249 static void parse_specific_params(AVCodecContext *stream, int *au_byterate, int *au_ssize, int *au_scale)
251 switch(stream->codec_id) {
252 case CODEC_ID_PCM_S16LE:
253 *au_scale = *au_ssize = 2*stream->channels;
254 *au_byterate = *au_ssize * stream->sample_rate;
256 case CODEC_ID_PCM_U8:
257 case CODEC_ID_PCM_ALAW:
258 case CODEC_ID_PCM_MULAW:
259 *au_scale = *au_ssize = stream->channels;
260 *au_byterate = *au_ssize * stream->sample_rate;
265 *au_byterate = stream->bit_rate / 8;
269 *au_byterate = stream->bit_rate / 8;
273 *au_byterate = stream->bit_rate / 8;
278 static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
279 const char* riff_tag, const char* list_tag)
285 for (i=0; i<MAX_STREAMS; i++)
286 avi->indexes[i].entry = 0;
288 avi->riff_start = start_tag(pb, "RIFF");
289 put_tag(pb, riff_tag);
290 loff = start_tag(pb, "LIST");
291 put_tag(pb, list_tag);
295 static unsigned char* avi_stream2fourcc(unsigned char* tag, int index,
299 tag[1] = '0' + index;
300 if (type == CODEC_TYPE_VIDEO) {
311 static int avi_write_header(AVFormatContext *s)
313 AVIContext *avi = s->priv_data;
314 ByteIOContext *pb = &s->pb;
315 int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
316 AVCodecContext *stream, *video_enc;
317 offset_t list1, list2, strh, strf;
321 list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
325 put_le32(pb, 14 * 4);
329 for(n=0;n<s->nb_streams;n++) {
330 stream = &s->streams[n]->codec;
331 bitrate += stream->bit_rate;
332 if (stream->codec_type == CODEC_TYPE_VIDEO)
339 put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->frame_rate_base / video_enc->frame_rate));
343 put_le32(pb, bitrate / 8); /* XXX: not quite exact */
344 put_le32(pb, 0); /* padding */
345 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
346 avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
347 put_le32(pb, nb_frames); /* nb frames, filled later */
348 put_le32(pb, 0); /* initial frame */
349 put_le32(pb, s->nb_streams); /* nb streams */
350 put_le32(pb, 1024 * 1024); /* suggested buffer size */
352 put_le32(pb, video_enc->width);
353 put_le32(pb, video_enc->height);
358 put_le32(pb, 0); /* reserved */
359 put_le32(pb, 0); /* reserved */
360 put_le32(pb, 0); /* reserved */
361 put_le32(pb, 0); /* reserved */
365 list2 = start_tag(pb, "LIST");
368 stream = &s->streams[i]->codec;
370 /* FourCC should really be set by the codec itself */
371 if (! stream->codec_tag) {
372 stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
375 /* stream generic header */
376 strh = start_tag(pb, "strh");
377 switch(stream->codec_type) {
378 case CODEC_TYPE_VIDEO:
380 put_le32(pb, stream->codec_tag);
381 put_le32(pb, 0); /* flags */
382 put_le16(pb, 0); /* priority */
383 put_le16(pb, 0); /* language */
384 put_le32(pb, 0); /* initial frame */
386 put_le32(pb, stream->frame_rate_base); /* scale */
387 put_le32(pb, stream->frame_rate); /* rate */
388 av_set_pts_info(s->streams[i], 64, stream->frame_rate_base, stream->frame_rate);
390 put_le32(pb, 0); /* start */
391 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
392 put_le32(pb, nb_frames); /* length, XXX: fill later */
393 put_le32(pb, 1024 * 1024); /* suggested buffer size */
394 put_le32(pb, -1); /* quality */
395 put_le32(pb, stream->width * stream->height * 3); /* sample size */
398 put_le16(pb, stream->width);
399 put_le16(pb, stream->height);
401 case CODEC_TYPE_AUDIO:
403 put_le32(pb, 1); /* tag */
404 put_le32(pb, 0); /* flags */
405 put_le16(pb, 0); /* priority */
406 put_le16(pb, 0); /* language */
407 put_le32(pb, 0); /* initial frame */
408 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
409 put_le32(pb, au_scale); /* scale */
410 put_le32(pb, au_byterate); /* rate */
411 // av_set_pts_info(&s->streams[i], 64, au_scale, au_byterate);
412 put_le32(pb, 0); /* start */
413 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
414 put_le32(pb, 0); /* length, XXX: filled later */
415 put_le32(pb, 12 * 1024); /* suggested buffer size */
416 put_le32(pb, -1); /* quality */
417 put_le32(pb, au_ssize); /* sample size */
426 strf = start_tag(pb, "strf");
427 switch(stream->codec_type) {
428 case CODEC_TYPE_VIDEO:
429 put_bmp_header(pb, stream, codec_bmp_tags, 0);
431 case CODEC_TYPE_AUDIO:
432 if (put_wav_header(pb, stream) < 0) {
442 if (!url_is_streamed(pb)) {
443 unsigned char tag[5];
446 /* Starting to lay out AVI OpenDML master index.
447 * We want to make it JUNK entry for now, since we'd
448 * like to get away without making AVI an OpenDML one
449 * for compatibility reasons.
451 avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
452 avi->indexes[i].indx_start = start_tag(pb, "JUNK");
453 put_le16(pb, 4); /* wLongsPerEntry */
454 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
455 put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
456 put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
457 put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
459 put_le64(pb, 0); /* dwReserved[3]
460 put_le32(pb, 0); Must be 0. */
461 for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
463 end_tag(pb, avi->indexes[i].indx_start);
469 if (!url_is_streamed(pb)) {
470 /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
471 avi->odml_list = start_tag(pb, "JUNK");
475 for (i = 0; i < 248; i+= 4)
477 end_tag(pb, avi->odml_list);
482 avi->movi_list = start_tag(pb, "LIST");
485 put_flush_packet(pb);
490 static int avi_write_ix(AVFormatContext *s)
492 ByteIOContext *pb = &s->pb;
493 AVIContext *avi = s->priv_data;
494 unsigned char tag[5];
495 unsigned char ix_tag[] = "ix00";
498 if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
501 for (i=0;i<s->nb_streams;i++) {
504 avi_stream2fourcc(&tag[0], i, s->streams[i]->codec.codec_type);
507 /* Writing AVI OpenDML leaf index chunk */
509 put_tag(pb, &ix_tag[0]); /* ix?? */
510 put_le32(pb, avi->indexes[i].entry * 8 + 24);
512 put_le16(pb, 2); /* wLongsPerEntry */
513 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
514 put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
515 put_le32(pb, avi->indexes[i].entry);
517 put_tag(pb, &tag[0]); /* dwChunkId */
518 put_le64(pb, avi->movi_list);/* qwBaseOffset */
519 put_le32(pb, 0); /* dwReserved_3 (must be 0) */
521 for (j=0; j<avi->indexes[i].entry; j++) {
522 AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
523 put_le32(pb, ie->pos + 8);
524 put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
525 (ie->flags & 0x10 ? 0 : 0x80000000));
527 put_flush_packet(pb);
530 /* Updating one entry in the AVI OpenDML master index */
531 url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
532 put_tag(pb, "indx"); /* enabling this entry */
534 put_le32(pb, avi->riff_id); /* nEntriesInUse */
535 url_fskip(pb, 16*avi->riff_id);
536 put_le64(pb, ix); /* qwOffset */
537 put_le32(pb, pos - ix); /* dwSize */
538 put_le32(pb, avi->indexes[i].entry); /* dwDuration */
540 url_fseek(pb, pos, SEEK_SET);
545 static int avi_write_idx1(AVFormatContext *s)
547 ByteIOContext *pb = &s->pb;
548 AVIContext *avi = s->priv_data;
549 offset_t file_size, idx_chunk;
550 int i, n, nb_frames, au_byterate, au_ssize, au_scale;
551 AVCodecContext *stream;
552 unsigned char tag[5];
554 if (!url_is_streamed(pb)) {
555 AVIIentry* ie = 0, *tie;
556 int entry[MAX_STREAMS];
557 int empty, stream_id = -1;
559 idx_chunk = start_tag(pb, "idx1");
560 memset(&entry[0], 0, sizeof(entry));
563 for (i=0; i<s->nb_streams; i++) {
564 if (avi->indexes[i].entry <= entry[i])
567 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
568 if (empty || tie->pos < ie->pos) {
575 avi_stream2fourcc(&tag[0], stream_id,
576 s->streams[stream_id]->codec.codec_type);
577 put_tag(pb, &tag[0]);
578 put_le32(pb, ie->flags);
579 put_le32(pb, ie->pos);
580 put_le32(pb, ie->len);
584 end_tag(pb, idx_chunk);
586 /* Fill in frame/sample counters */
587 file_size = url_ftell(pb);
589 for(n=0;n<s->nb_streams;n++) {
590 if (avi->frames_hdr_strm[n] != 0) {
591 stream = &s->streams[n]->codec;
592 url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
593 if (stream->codec_type == CODEC_TYPE_VIDEO) {
594 put_le32(pb, stream->frame_number);
595 if (nb_frames < stream->frame_number)
596 nb_frames = stream->frame_number;
598 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
599 put_le32(pb, stream->frame_number);
600 nb_frames += stream->frame_number;
602 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
603 put_le32(pb, avi->audio_strm_length[n] / au_ssize);
608 if (avi->frames_hdr_all != 0) {
609 url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
610 put_le32(pb, nb_frames);
612 url_fseek(pb, file_size, SEEK_SET);
617 static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
619 AVIContext *avi = s->priv_data;
620 ByteIOContext *pb = &s->pb;
621 unsigned char tag[5];
622 unsigned int flags=0;
623 const int stream_index= pkt->stream_index;
624 AVCodecContext *enc= &s->streams[stream_index]->codec;
627 // av_log(s, AV_LOG_DEBUG, "%lld %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
628 while(enc->codec_type == CODEC_TYPE_VIDEO && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){
629 AVPacket empty_packet;
631 av_init_packet(&empty_packet);
632 empty_packet.size= 0;
633 empty_packet.data= NULL;
634 empty_packet.stream_index= stream_index;
635 avi_write_packet(s, &empty_packet);
636 // av_log(s, AV_LOG_DEBUG, "dup %lld %d\n", pkt->dts, avi->packet_count[stream_index]);
638 avi->packet_count[stream_index]++;
640 if (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE) {
642 end_tag(pb, avi->movi_list);
644 if (avi->riff_id == 1)
647 end_tag(pb, avi->riff_start);
648 avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
651 avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
652 if(pkt->flags&PKT_FLAG_KEY)
654 if (enc->codec_type == CODEC_TYPE_AUDIO) {
655 avi->audio_strm_length[stream_index] += size;
658 if (!url_is_streamed(&s->pb)) {
659 AVIIndex* idx = &avi->indexes[stream_index];
660 int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
661 int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
662 if (idx->ents_allocated <= idx->entry) {
663 idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
666 idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
667 if (!idx->cluster[cl])
669 idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
672 idx->cluster[cl][id].flags = flags;
673 idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
674 idx->cluster[cl][id].len = size;
678 put_buffer(pb, tag, 4);
680 put_buffer(pb, pkt->data, size);
684 put_flush_packet(pb);
688 static int avi_write_trailer(AVFormatContext *s)
690 AVIContext *avi = s->priv_data;
691 ByteIOContext *pb = &s->pb;
693 int i, j, n, nb_frames;
696 if (avi->riff_id == 1) {
697 end_tag(pb, avi->movi_list);
698 res = avi_write_idx1(s);
699 end_tag(pb, avi->riff_start);
702 end_tag(pb, avi->movi_list);
703 end_tag(pb, avi->riff_start);
705 file_size = url_ftell(pb);
706 url_fseek(pb, avi->odml_list - 8, SEEK_SET);
707 put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
710 for (n=nb_frames=0;n<s->nb_streams;n++) {
711 AVCodecContext *stream = &s->streams[n]->codec;
712 if (stream->codec_type == CODEC_TYPE_VIDEO) {
713 if (nb_frames < stream->frame_number)
714 nb_frames = stream->frame_number;
716 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
717 nb_frames += stream->frame_number;
721 put_le32(pb, nb_frames);
722 url_fseek(pb, file_size, SEEK_SET);
724 put_flush_packet(pb);
726 for (i=0; i<MAX_STREAMS; i++) {
727 for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
728 av_free(avi->indexes[i].cluster[j]);
729 av_free(avi->indexes[i].cluster);
730 avi->indexes[i].cluster = NULL;
731 avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
737 static AVOutputFormat avi_oformat = {
750 int avienc_init(void)
752 av_register_output_format(&avi_oformat);
755 #endif //CONFIG_ENCODERS