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_4XM, MKTAG('4', 'X', 'M', 'V') },
165 { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
166 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
167 { CODEC_ID_RAWVIDEO, 0 },
171 unsigned int codec_get_tag(const CodecTag *tags, int id)
173 while (tags->id != 0) {
181 static unsigned int codec_get_asf_tag(const CodecTag *tags, int id)
183 while (tags->id != 0) {
184 if (!tags->invalid_asf && tags->id == id)
191 enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
193 while (tags->id != 0) {
194 if( toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF)
195 && toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF)
196 && toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF)
197 && toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF))
201 return CODEC_ID_NONE;
204 unsigned int codec_get_bmp_tag(int id)
206 return codec_get_tag(codec_bmp_tags, id);
209 unsigned int codec_get_wav_tag(int id)
211 return codec_get_tag(codec_wav_tags, id);
214 enum CodecID codec_get_bmp_id(unsigned int tag)
216 return codec_get_id(codec_bmp_tags, tag);
219 enum CodecID codec_get_wav_id(unsigned int tag)
221 return codec_get_id(codec_wav_tags, tag);
224 #ifdef CONFIG_ENCODERS
225 /* BITMAPINFOHEADER header */
226 void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
228 put_le32(pb, 40 + enc->extradata_size); /* size */
229 put_le32(pb, enc->width);
230 put_le32(pb, enc->height);
231 put_le16(pb, 1); /* planes */
233 put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
234 /* compression type */
235 put_le32(pb, for_asf ? codec_get_asf_tag(tags, enc->codec_id) : enc->codec_tag);
236 put_le32(pb, enc->width * enc->height * 3);
242 put_buffer(pb, enc->extradata, enc->extradata_size);
244 if (enc->extradata_size & 1)
248 static void parse_specific_params(AVCodecContext *stream, int *au_byterate, int *au_ssize, int *au_scale)
250 switch(stream->codec_id) {
251 case CODEC_ID_PCM_S16LE:
252 *au_scale = *au_ssize = 2*stream->channels;
253 *au_byterate = *au_ssize * stream->sample_rate;
255 case CODEC_ID_PCM_U8:
256 case CODEC_ID_PCM_ALAW:
257 case CODEC_ID_PCM_MULAW:
258 *au_scale = *au_ssize = stream->channels;
259 *au_byterate = *au_ssize * stream->sample_rate;
264 *au_byterate = stream->bit_rate / 8;
268 *au_byterate = stream->bit_rate / 8;
272 *au_byterate = stream->bit_rate / 8;
277 static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
278 const char* riff_tag, const char* list_tag)
284 for (i=0; i<MAX_STREAMS; i++)
285 avi->indexes[i].entry = 0;
287 avi->riff_start = start_tag(pb, "RIFF");
288 put_tag(pb, riff_tag);
289 loff = start_tag(pb, "LIST");
290 put_tag(pb, list_tag);
294 static unsigned char* avi_stream2fourcc(unsigned char* tag, int index,
298 tag[1] = '0' + index;
299 if (type == CODEC_TYPE_VIDEO) {
310 static int avi_write_header(AVFormatContext *s)
312 AVIContext *avi = s->priv_data;
313 ByteIOContext *pb = &s->pb;
314 int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
315 AVCodecContext *stream, *video_enc;
316 offset_t list1, list2, strh, strf;
320 list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
324 put_le32(pb, 14 * 4);
328 for(n=0;n<s->nb_streams;n++) {
329 stream = &s->streams[n]->codec;
330 bitrate += stream->bit_rate;
331 if (stream->codec_type == CODEC_TYPE_VIDEO)
338 put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->frame_rate_base / video_enc->frame_rate));
342 put_le32(pb, bitrate / 8); /* XXX: not quite exact */
343 put_le32(pb, 0); /* padding */
344 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
345 avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
346 put_le32(pb, nb_frames); /* nb frames, filled later */
347 put_le32(pb, 0); /* initial frame */
348 put_le32(pb, s->nb_streams); /* nb streams */
349 put_le32(pb, 1024 * 1024); /* suggested buffer size */
351 put_le32(pb, video_enc->width);
352 put_le32(pb, video_enc->height);
357 put_le32(pb, 0); /* reserved */
358 put_le32(pb, 0); /* reserved */
359 put_le32(pb, 0); /* reserved */
360 put_le32(pb, 0); /* reserved */
364 list2 = start_tag(pb, "LIST");
367 stream = &s->streams[i]->codec;
369 /* FourCC should really be set by the codec itself */
370 if (! stream->codec_tag) {
371 stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
374 /* stream generic header */
375 strh = start_tag(pb, "strh");
376 switch(stream->codec_type) {
377 case CODEC_TYPE_VIDEO:
379 put_le32(pb, stream->codec_tag);
380 put_le32(pb, 0); /* flags */
381 put_le16(pb, 0); /* priority */
382 put_le16(pb, 0); /* language */
383 put_le32(pb, 0); /* initial frame */
385 put_le32(pb, stream->frame_rate_base); /* scale */
386 put_le32(pb, stream->frame_rate); /* rate */
387 av_set_pts_info(s->streams[i], 64, stream->frame_rate_base, stream->frame_rate);
389 put_le32(pb, 0); /* start */
390 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
391 put_le32(pb, nb_frames); /* length, XXX: fill later */
392 put_le32(pb, 1024 * 1024); /* suggested buffer size */
393 put_le32(pb, -1); /* quality */
394 put_le32(pb, stream->width * stream->height * 3); /* sample size */
397 put_le16(pb, stream->width);
398 put_le16(pb, stream->height);
400 case CODEC_TYPE_AUDIO:
402 put_le32(pb, 1); /* tag */
403 put_le32(pb, 0); /* flags */
404 put_le16(pb, 0); /* priority */
405 put_le16(pb, 0); /* language */
406 put_le32(pb, 0); /* initial frame */
407 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
408 put_le32(pb, au_scale); /* scale */
409 put_le32(pb, au_byterate); /* rate */
410 // av_set_pts_info(&s->streams[i], 64, au_scale, au_byterate);
411 put_le32(pb, 0); /* start */
412 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
413 put_le32(pb, 0); /* length, XXX: filled later */
414 put_le32(pb, 12 * 1024); /* suggested buffer size */
415 put_le32(pb, -1); /* quality */
416 put_le32(pb, au_ssize); /* sample size */
425 strf = start_tag(pb, "strf");
426 switch(stream->codec_type) {
427 case CODEC_TYPE_VIDEO:
428 put_bmp_header(pb, stream, codec_bmp_tags, 0);
430 case CODEC_TYPE_AUDIO:
431 if (put_wav_header(pb, stream) < 0) {
441 if (!url_is_streamed(pb)) {
442 unsigned char tag[5];
445 /* Starting to lay out AVI OpenDML master index.
446 * We want to make it JUNK entry for now, since we'd
447 * like to get away without making AVI an OpenDML one
448 * for compatibility reasons.
450 avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
451 avi->indexes[i].indx_start = start_tag(pb, "JUNK");
452 put_le16(pb, 4); /* wLongsPerEntry */
453 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
454 put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
455 put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
456 put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
458 put_le64(pb, 0); /* dwReserved[3]
459 put_le32(pb, 0); Must be 0. */
460 for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
462 end_tag(pb, avi->indexes[i].indx_start);
468 if (!url_is_streamed(pb)) {
469 /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
470 avi->odml_list = start_tag(pb, "JUNK");
474 for (i = 0; i < 248; i+= 4)
476 end_tag(pb, avi->odml_list);
481 avi->movi_list = start_tag(pb, "LIST");
484 put_flush_packet(pb);
489 static int avi_write_ix(AVFormatContext *s)
491 ByteIOContext *pb = &s->pb;
492 AVIContext *avi = s->priv_data;
493 unsigned char tag[5];
494 unsigned char ix_tag[] = "ix00";
497 if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
500 for (i=0;i<s->nb_streams;i++) {
503 avi_stream2fourcc(&tag[0], i, s->streams[i]->codec.codec_type);
506 /* Writing AVI OpenDML leaf index chunk */
508 put_tag(pb, &ix_tag[0]); /* ix?? */
509 put_le32(pb, avi->indexes[i].entry * 8 + 24);
511 put_le16(pb, 2); /* wLongsPerEntry */
512 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
513 put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
514 put_le32(pb, avi->indexes[i].entry);
516 put_tag(pb, &tag[0]); /* dwChunkId */
517 put_le64(pb, avi->movi_list);/* qwBaseOffset */
518 put_le32(pb, 0); /* dwReserved_3 (must be 0) */
520 for (j=0; j<avi->indexes[i].entry; j++) {
521 AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
522 put_le32(pb, ie->pos + 8);
523 put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
524 (ie->flags & 0x10 ? 0 : 0x80000000));
526 put_flush_packet(pb);
529 /* Updating one entry in the AVI OpenDML master index */
530 url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
531 put_tag(pb, "indx"); /* enabling this entry */
533 put_le32(pb, avi->riff_id); /* nEntriesInUse */
534 url_fskip(pb, 16*avi->riff_id);
535 put_le64(pb, ix); /* qwOffset */
536 put_le32(pb, pos - ix); /* dwSize */
537 put_le32(pb, avi->indexes[i].entry); /* dwDuration */
539 url_fseek(pb, pos, SEEK_SET);
544 static int avi_write_idx1(AVFormatContext *s)
546 ByteIOContext *pb = &s->pb;
547 AVIContext *avi = s->priv_data;
548 offset_t file_size, idx_chunk;
549 int i, n, nb_frames, au_byterate, au_ssize, au_scale;
550 AVCodecContext *stream;
551 unsigned char tag[5];
553 if (!url_is_streamed(pb)) {
554 AVIIentry* ie = 0, *tie;
555 int entry[MAX_STREAMS];
556 int empty, stream_id = -1;
558 idx_chunk = start_tag(pb, "idx1");
559 memset(&entry[0], 0, sizeof(entry));
562 for (i=0; i<s->nb_streams; i++) {
563 if (avi->indexes[i].entry <= entry[i])
566 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
567 if (empty || tie->pos < ie->pos) {
574 avi_stream2fourcc(&tag[0], stream_id,
575 s->streams[stream_id]->codec.codec_type);
576 put_tag(pb, &tag[0]);
577 put_le32(pb, ie->flags);
578 put_le32(pb, ie->pos);
579 put_le32(pb, ie->len);
583 end_tag(pb, idx_chunk);
585 /* Fill in frame/sample counters */
586 file_size = url_ftell(pb);
588 for(n=0;n<s->nb_streams;n++) {
589 if (avi->frames_hdr_strm[n] != 0) {
590 stream = &s->streams[n]->codec;
591 url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
592 if (stream->codec_type == CODEC_TYPE_VIDEO) {
593 put_le32(pb, stream->frame_number);
594 if (nb_frames < stream->frame_number)
595 nb_frames = stream->frame_number;
597 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
598 put_le32(pb, stream->frame_number);
599 nb_frames += stream->frame_number;
601 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
602 put_le32(pb, avi->audio_strm_length[n] / au_ssize);
607 if (avi->frames_hdr_all != 0) {
608 url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
609 put_le32(pb, nb_frames);
611 url_fseek(pb, file_size, SEEK_SET);
616 static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
618 AVIContext *avi = s->priv_data;
619 ByteIOContext *pb = &s->pb;
620 unsigned char tag[5];
621 unsigned int flags=0;
622 const int stream_index= pkt->stream_index;
623 AVCodecContext *enc= &s->streams[stream_index]->codec;
626 // av_log(s, AV_LOG_DEBUG, "%lld %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
627 while(enc->codec_type == CODEC_TYPE_VIDEO && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){
628 AVPacket empty_packet;
630 av_init_packet(&empty_packet);
631 empty_packet.size= 0;
632 empty_packet.data= NULL;
633 empty_packet.stream_index= stream_index;
634 avi_write_packet(s, &empty_packet);
635 // av_log(s, AV_LOG_DEBUG, "dup %lld %d\n", pkt->dts, avi->packet_count[stream_index]);
637 avi->packet_count[stream_index]++;
639 if (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE) {
641 end_tag(pb, avi->movi_list);
643 if (avi->riff_id == 1)
646 end_tag(pb, avi->riff_start);
647 avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
650 avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
651 if(pkt->flags&PKT_FLAG_KEY)
653 if (enc->codec_type == CODEC_TYPE_AUDIO) {
654 avi->audio_strm_length[stream_index] += size;
657 if (!url_is_streamed(&s->pb)) {
658 AVIIndex* idx = &avi->indexes[stream_index];
659 int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
660 int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
661 if (idx->ents_allocated <= idx->entry) {
662 idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
665 idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
666 if (!idx->cluster[cl])
668 idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
671 idx->cluster[cl][id].flags = flags;
672 idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
673 idx->cluster[cl][id].len = size;
677 put_buffer(pb, tag, 4);
679 put_buffer(pb, pkt->data, size);
683 put_flush_packet(pb);
687 static int avi_write_trailer(AVFormatContext *s)
689 AVIContext *avi = s->priv_data;
690 ByteIOContext *pb = &s->pb;
692 int i, j, n, nb_frames;
695 if (avi->riff_id == 1) {
696 end_tag(pb, avi->movi_list);
697 res = avi_write_idx1(s);
698 end_tag(pb, avi->riff_start);
701 end_tag(pb, avi->movi_list);
702 end_tag(pb, avi->riff_start);
704 file_size = url_ftell(pb);
705 url_fseek(pb, avi->odml_list - 8, SEEK_SET);
706 put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
709 for (n=nb_frames=0;n<s->nb_streams;n++) {
710 AVCodecContext *stream = &s->streams[n]->codec;
711 if (stream->codec_type == CODEC_TYPE_VIDEO) {
712 if (nb_frames < stream->frame_number)
713 nb_frames = stream->frame_number;
715 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
716 nb_frames += stream->frame_number;
720 put_le32(pb, nb_frames);
721 url_fseek(pb, file_size, SEEK_SET);
723 put_flush_packet(pb);
725 for (i=0; i<MAX_STREAMS; i++) {
726 for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
727 av_free(avi->indexes[i].cluster[j]);
728 av_free(avi->indexes[i].cluster);
729 avi->indexes[i].cluster = NULL;
730 avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
736 static AVOutputFormat avi_oformat = {
749 int avienc_init(void)
751 av_register_output_format(&avi_oformat);
754 #endif //CONFIG_ENCODERS