cosmetic: indent
[libav.git] / libavformat / avienc.c
CommitLineData
de6d9b64 1/*
7fbde343 2 * AVI muxer
19720f15 3 * Copyright (c) 2000 Fabrice Bellard.
de6d9b64 4 *
b78e7197
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5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
19720f15
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8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
b78e7197 10 * version 2.1 of the License, or (at your option) any later version.
de6d9b64 11 *
b78e7197 12 * FFmpeg is distributed in the hope that it will be useful,
de6d9b64 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
de6d9b64 16 *
19720f15 17 * You should have received a copy of the GNU Lesser General Public
b78e7197 18 * License along with FFmpeg; if not, write to the Free Software
5509bffa 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
de6d9b64 20 */
de6d9b64
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21#include "avformat.h"
22#include "avi.h"
9d9f4119 23#include "riff.h"
de6d9b64
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24
25/*
115329f1 26 * TODO:
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27 * - fill all fields if non streamed (nb_frames for example)
28 */
29
ff70e601 30#ifdef CONFIG_AVI_MUXER
e738cee9 31typedef struct AVIIentry {
de6d9b64 32 unsigned int flags, pos, len;
e738cee9
RS
33} AVIIentry;
34
35#define AVI_INDEX_CLUSTER_SIZE 16384
36
37typedef struct AVIIndex {
bc5c918e 38 int64_t indx_start;
e738cee9
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39 int entry;
40 int ents_allocated;
41 AVIIentry** cluster;
de6d9b64
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42} AVIIndex;
43
44typedef struct {
bc5c918e
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45 int64_t riff_start, movi_list, odml_list;
46 int64_t frames_hdr_all, frames_hdr_strm[MAX_STREAMS];
86bec9a1 47 int audio_strm_length[MAX_STREAMS];
e738cee9 48 int riff_id;
50c3dd32 49 int packet_count[MAX_STREAMS];
e738cee9
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50
51 AVIIndex indexes[MAX_STREAMS];
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52} AVIContext;
53
115329f1 54static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id)
e738cee9
RS
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
bc5c918e
DB
61static int64_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
62 const char* riff_tag, const char* list_tag)
ce9fce63 63{
bc5c918e 64 int64_t loff;
e738cee9 65 int i;
115329f1 66
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67 avi->riff_id++;
68 for (i=0; i<MAX_STREAMS; i++)
69 avi->indexes[i].entry = 0;
115329f1 70
ce9fce63
RS
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
191e8ca7 78static char* avi_stream2fourcc(char* tag, int index, enum CodecType type)
e738cee9
RS
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
57060f89
DC
93static 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
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BB
106static int avi_write_counters(AVFormatContext* s, int riff_id)
107{
899681cd 108 ByteIOContext *pb = s->pb;
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109 AVIContext *avi = s->priv_data;
110 int n, au_byterate, au_ssize, au_scale, nb_frames = 0;
bc5c918e 111 int64_t file_size;
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112 AVCodecContext* stream;
113
114 file_size = url_ftell(pb);
115 for(n = 0; n < s->nb_streams; n++) {
116 assert(avi->frames_hdr_strm[n]);
117 stream = s->streams[n]->codec;
118 url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
119 ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
120 if(au_ssize == 0) {
121 put_le32(pb, avi->packet_count[n]);
122 } else {
123 put_le32(pb, avi->audio_strm_length[n] / au_ssize);
124 }
125 if(stream->codec_type == CODEC_TYPE_VIDEO)
126 nb_frames = FFMAX(nb_frames, avi->packet_count[n]);
127 }
128 if(riff_id == 1) {
129 assert(avi->frames_hdr_all);
130 url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
131 put_le32(pb, nb_frames);
132 }
133 url_fseek(pb, file_size, SEEK_SET);
134
135 return 0;
136}
137
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138static int avi_write_header(AVFormatContext *s)
139{
c9a65ca8 140 AVIContext *avi = s->priv_data;
899681cd 141 ByteIOContext *pb = s->pb;
86bec9a1 142 int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
de6d9b64 143 AVCodecContext *stream, *video_enc;
bc5c918e 144 int64_t list1, list2, strh, strf;
de6d9b64 145
de6d9b64 146 /* header list */
e738cee9 147 avi->riff_id = 0;
ce9fce63 148 list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
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149
150 /* avi header */
151 put_tag(pb, "avih");
152 put_le32(pb, 14 * 4);
153 bitrate = 0;
154
155 video_enc = NULL;
156 for(n=0;n<s->nb_streams;n++) {
01f4895c 157 stream = s->streams[n]->codec;
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158 bitrate += stream->bit_rate;
159 if (stream->codec_type == CODEC_TYPE_VIDEO)
160 video_enc = stream;
161 }
115329f1 162
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163 nb_frames = 0;
164
850742d7 165 if(video_enc){
8da9266c 166 put_le32(pb, (uint32_t)(INT64_C(1000000) * video_enc->time_base.num / video_enc->time_base.den));
850742d7 167 } else {
bb270c08 168 put_le32(pb, 0);
850742d7 169 }
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170 put_le32(pb, bitrate / 8); /* XXX: not quite exact */
171 put_le32(pb, 0); /* padding */
a2a2668d 172 if (url_is_streamed(pb))
bb270c08 173 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_ISINTERLEAVED); /* flags */
a2a2668d 174 else
bb270c08 175 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
86bec9a1 176 avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
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177 put_le32(pb, nb_frames); /* nb frames, filled later */
178 put_le32(pb, 0); /* initial frame */
179 put_le32(pb, s->nb_streams); /* nb streams */
180 put_le32(pb, 1024 * 1024); /* suggested buffer size */
115329f1 181 if(video_enc){
98740f5a
MN
182 put_le32(pb, video_enc->width);
183 put_le32(pb, video_enc->height);
850742d7 184 } else {
bb270c08
DB
185 put_le32(pb, 0);
186 put_le32(pb, 0);
115329f1 187 }
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188 put_le32(pb, 0); /* reserved */
189 put_le32(pb, 0); /* reserved */
190 put_le32(pb, 0); /* reserved */
191 put_le32(pb, 0); /* reserved */
115329f1 192
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193 /* stream list */
194 for(i=0;i<n;i++) {
195 list2 = start_tag(pb, "LIST");
196 put_tag(pb, "strl");
115329f1 197
01f4895c 198 stream = s->streams[i]->codec;
de6d9b64
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199
200 /* stream generic header */
201 strh = start_tag(pb, "strh");
202 switch(stream->codec_type) {
1d92cc2b
MN
203 case CODEC_TYPE_VIDEO: put_tag(pb, "vids"); break;
204 case CODEC_TYPE_AUDIO: put_tag(pb, "auds"); break;
205// case CODEC_TYPE_TEXT : put_tag(pb, "txts"); break;
206 case CODEC_TYPE_DATA : put_tag(pb, "dats"); break;
de6d9b64 207 }
1d92cc2b
MN
208 if(stream->codec_type == CODEC_TYPE_VIDEO)
209 put_le32(pb, stream->codec_tag);
210 else
211 put_le32(pb, 1);
212 put_le32(pb, 0); /* flags */
213 put_le16(pb, 0); /* priority */
214 put_le16(pb, 0); /* language */
215 put_le32(pb, 0); /* initial frame */
216
217 ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
218
219 put_le32(pb, au_scale); /* scale */
220 put_le32(pb, au_byterate); /* rate */
221 av_set_pts_info(s->streams[i], 64, au_scale, au_byterate);
222
223 put_le32(pb, 0); /* start */
224 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
bb270c08
DB
225 if (url_is_streamed(pb))
226 put_le32(pb, AVI_MAX_RIFF_SIZE); /* FIXME: this may be broken, but who cares */
227 else
228 put_le32(pb, 0); /* length, XXX: filled later */
115329f1 229
1d92cc2b
MN
230 /* suggested buffer size */ //FIXME set at the end to largest chunk
231 if(stream->codec_type == CODEC_TYPE_VIDEO)
115329f1 232 put_le32(pb, 1024 * 1024);
1d92cc2b 233 else if(stream->codec_type == CODEC_TYPE_AUDIO)
115329f1 234 put_le32(pb, 12 * 1024);
1d92cc2b 235 else
115329f1 236 put_le32(pb, 0);
1d92cc2b
MN
237 put_le32(pb, -1); /* quality */
238 put_le32(pb, au_ssize); /* sample size */
239 put_le32(pb, 0);
240 put_le16(pb, stream->width);
241 put_le16(pb, stream->height);
de6d9b64
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242 end_tag(pb, strh);
243
1d92cc2b 244 if(stream->codec_type != CODEC_TYPE_DATA){
de6d9b64
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245 strf = start_tag(pb, "strf");
246 switch(stream->codec_type) {
247 case CODEC_TYPE_VIDEO:
bb270c08 248 put_bmp_header(pb, stream, codec_bmp_tags, 0);
de6d9b64
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249 break;
250 case CODEC_TYPE_AUDIO:
46a3d068 251 if (put_wav_header(pb, stream) < 0) {
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FB
252 return -1;
253 }
de6d9b64 254 break;
53cafac0 255 default:
71c32f19 256 return -1;
de6d9b64
FB
257 }
258 end_tag(pb, strf);
1d92cc2b 259 }
115329f1 260
bb270c08
DB
261 if (!url_is_streamed(pb)) {
262 unsigned char tag[5];
263 int j;
115329f1
DB
264
265 /* Starting to lay out AVI OpenDML master index.
bb270c08
DB
266 * We want to make it JUNK entry for now, since we'd
267 * like to get away without making AVI an OpenDML one
268 * for compatibility reasons.
269 */
270 avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
271 avi->indexes[i].indx_start = start_tag(pb, "JUNK");
272 put_le16(pb, 4); /* wLongsPerEntry */
273 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
274 put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
275 put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
276 put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
277 /* dwChunkId */
278 put_le64(pb, 0); /* dwReserved[3]
279 put_le32(pb, 0); Must be 0. */
280 for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
281 put_le64(pb, 0);
282 end_tag(pb, avi->indexes[i].indx_start);
283 }
115329f1 284
5b087549 285 if( stream->codec_type == CODEC_TYPE_VIDEO
59729451
AJ
286 && s->streams[i]->sample_aspect_ratio.num>0
287 && s->streams[i]->sample_aspect_ratio.den>0){
5b087549 288 int vprp= start_tag(pb, "vprp");
59729451 289 AVRational dar = av_mul_q(s->streams[i]->sample_aspect_ratio,
5b087549
MN
290 (AVRational){stream->width, stream->height});
291 int num, den;
292 av_reduce(&num, &den, dar.num, dar.den, 0xFFFF);
293
294 put_le32(pb, 0); //video format = unknown
295 put_le32(pb, 0); //video standard= unknown
296 put_le32(pb, lrintf(1.0/av_q2d(stream->time_base)));
297 put_le32(pb, stream->width );
298 put_le32(pb, stream->height);
5b087549 299 put_le16(pb, den);
61559562 300 put_le16(pb, num);
5b087549
MN
301 put_le32(pb, stream->width );
302 put_le32(pb, stream->height);
303 put_le32(pb, 1); //progressive FIXME
304
305 put_le32(pb, stream->height);
306 put_le32(pb, stream->width );
307 put_le32(pb, stream->height);
308 put_le32(pb, stream->width );
309 put_le32(pb, 0);
310 put_le32(pb, 0);
311
312 put_le32(pb, 0);
313 put_le32(pb, 0);
314 end_tag(pb, vprp);
315 }
316
de6d9b64
FB
317 end_tag(pb, list2);
318 }
115329f1 319
e738cee9
RS
320 if (!url_is_streamed(pb)) {
321 /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
322 avi->odml_list = start_tag(pb, "JUNK");
323 put_tag(pb, "odml");
324 put_tag(pb, "dmlh");
325 put_le32(pb, 248);
326 for (i = 0; i < 248; i+= 4)
327 put_le32(pb, 0);
328 end_tag(pb, avi->odml_list);
329 }
de6d9b64
FB
330
331 end_tag(pb, list1);
115329f1 332
57060f89
DC
333 list2 = start_tag(pb, "LIST");
334 put_tag(pb, "INFO");
335 avi_write_info_tag(pb, "INAM", s->title);
336 avi_write_info_tag(pb, "IART", s->author);
337 avi_write_info_tag(pb, "ICOP", s->copyright);
338 avi_write_info_tag(pb, "ICMT", s->comment);
339 avi_write_info_tag(pb, "IPRD", s->album);
340 avi_write_info_tag(pb, "IGNR", s->genre);
2eb291c4
PI
341 if (s->track) {
342 char str_track[4];
343 snprintf(str_track, 4, "%d", s->track);
344 avi_write_info_tag(pb, "IPRT", str_track);
345 }
57060f89
DC
346 if(!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
347 avi_write_info_tag(pb, "ISFT", LIBAVFORMAT_IDENT);
348 end_tag(pb, list2);
349
350 /* some padding for easier tag editing */
351 list2 = start_tag(pb, "JUNK");
352 for (i = 0; i < 1016; i += 4)
353 put_le32(pb, 0);
354 end_tag(pb, list2);
355
de6d9b64 356 avi->movi_list = start_tag(pb, "LIST");
de6d9b64
FB
357 put_tag(pb, "movi");
358
359 put_flush_packet(pb);
360
361 return 0;
362}
363
e738cee9
RS
364static int avi_write_ix(AVFormatContext *s)
365{
899681cd 366 ByteIOContext *pb = s->pb;
e738cee9 367 AVIContext *avi = s->priv_data;
191e8ca7
MR
368 char tag[5];
369 char ix_tag[] = "ix00";
e738cee9 370 int i, j;
115329f1 371
9eb40bcf 372 assert(!url_is_streamed(pb));
a2a2668d 373
e738cee9
RS
374 if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
375 return -1;
115329f1 376
e738cee9 377 for (i=0;i<s->nb_streams;i++) {
bc5c918e 378 int64_t ix, pos;
115329f1 379
bb270c08
DB
380 avi_stream2fourcc(&tag[0], i, s->streams[i]->codec->codec_type);
381 ix_tag[3] = '0' + i;
115329f1 382
bb270c08
DB
383 /* Writing AVI OpenDML leaf index chunk */
384 ix = url_ftell(pb);
385 put_tag(pb, &ix_tag[0]); /* ix?? */
386 put_le32(pb, avi->indexes[i].entry * 8 + 24);
387 /* chunk size */
e738cee9 388 put_le16(pb, 2); /* wLongsPerEntry */
bb270c08
DB
389 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
390 put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
391 put_le32(pb, avi->indexes[i].entry);
392 /* nEntriesInUse */
393 put_tag(pb, &tag[0]); /* dwChunkId */
394 put_le64(pb, avi->movi_list);/* qwBaseOffset */
395 put_le32(pb, 0); /* dwReserved_3 (must be 0) */
e738cee9
RS
396
397 for (j=0; j<avi->indexes[i].entry; j++) {
398 AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
bb270c08
DB
399 put_le32(pb, ie->pos + 8);
400 put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
401 (ie->flags & 0x10 ? 0 : 0x80000000));
e738cee9 402 }
bb270c08 403 put_flush_packet(pb);
e738cee9 404 pos = url_ftell(pb);
115329f1 405
bb270c08
DB
406 /* Updating one entry in the AVI OpenDML master index */
407 url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
408 put_tag(pb, "indx"); /* enabling this entry */
409 url_fskip(pb, 8);
410 put_le32(pb, avi->riff_id); /* nEntriesInUse */
411 url_fskip(pb, 16*avi->riff_id);
412 put_le64(pb, ix); /* qwOffset */
413 put_le32(pb, pos - ix); /* dwSize */
414 put_le32(pb, avi->indexes[i].entry); /* dwDuration */
415
416 url_fseek(pb, pos, SEEK_SET);
e738cee9
RS
417 }
418 return 0;
419}
420
421static int avi_write_idx1(AVFormatContext *s)
ce9fce63 422{
899681cd 423 ByteIOContext *pb = s->pb;
ce9fce63 424 AVIContext *avi = s->priv_data;
bc5c918e 425 int64_t idx_chunk;
5bce834e 426 int i;
191e8ca7 427 char tag[5];
ce9fce63
RS
428
429 if (!url_is_streamed(pb)) {
bb270c08
DB
430 AVIIentry* ie = 0, *tie;
431 int entry[MAX_STREAMS];
432 int empty, stream_id = -1;
433
434 idx_chunk = start_tag(pb, "idx1");
435 memset(&entry[0], 0, sizeof(entry));
436 do {
437 empty = 1;
438 for (i=0; i<s->nb_streams; i++) {
439 if (avi->indexes[i].entry <= entry[i])
440 continue;
441
442 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
443 if (empty || tie->pos < ie->pos) {
444 ie = tie;
445 stream_id = i;
446 }
447 empty = 0;
448 }
449 if (!empty) {
450 avi_stream2fourcc(&tag[0], stream_id,
451 s->streams[stream_id]->codec->codec_type);
452 put_tag(pb, &tag[0]);
453 put_le32(pb, ie->flags);
e738cee9
RS
454 put_le32(pb, ie->pos);
455 put_le32(pb, ie->len);
bb270c08
DB
456 entry[stream_id]++;
457 }
458 } while (!empty);
459 end_tag(pb, idx_chunk);
ce9fce63 460
5bce834e 461 avi_write_counters(s, avi->riff_id);
ce9fce63
RS
462 }
463 return 0;
464}
465
e928649b 466static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
de6d9b64
FB
467{
468 AVIContext *avi = s->priv_data;
899681cd 469 ByteIOContext *pb = s->pb;
de6d9b64 470 unsigned char tag[5];
e928649b 471 unsigned int flags=0;
e928649b 472 const int stream_index= pkt->stream_index;
01f4895c 473 AVCodecContext *enc= s->streams[stream_index]->codec;
e928649b 474 int size= pkt->size;
ce9fce63 475
949b1a13 476// av_log(s, AV_LOG_DEBUG, "%"PRId64" %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
16543599 477 while(enc->block_align==0 && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){
50c3dd32
MN
478 AVPacket empty_packet;
479
480 av_init_packet(&empty_packet);
481 empty_packet.size= 0;
482 empty_packet.data= NULL;
483 empty_packet.stream_index= stream_index;
484 avi_write_packet(s, &empty_packet);
949b1a13 485// av_log(s, AV_LOG_DEBUG, "dup %"PRId64" %d\n", pkt->dts, avi->packet_count[stream_index]);
50c3dd32
MN
486 }
487 avi->packet_count[stream_index]++;
488
a2a2668d 489 // Make sure to put an OpenDML chunk when the file size exceeds the limits
115329f1 490 if (!url_is_streamed(pb) &&
bb270c08 491 (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) {
115329f1 492
e738cee9
RS
493 avi_write_ix(s);
494 end_tag(pb, avi->movi_list);
115329f1 495
bb270c08
DB
496 if (avi->riff_id == 1)
497 avi_write_idx1(s);
e738cee9 498
bb270c08
DB
499 end_tag(pb, avi->riff_start);
500 avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
ce9fce63 501 }
115329f1 502
e738cee9 503 avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
e928649b
MN
504 if(pkt->flags&PKT_FLAG_KEY)
505 flags = 0x10;
e738cee9 506 if (enc->codec_type == CODEC_TYPE_AUDIO) {
86bec9a1 507 avi->audio_strm_length[stream_index] += size;
e928649b 508 }
de6d9b64 509
899681cd 510 if (!url_is_streamed(s->pb)) {
e738cee9 511 AVIIndex* idx = &avi->indexes[stream_index];
bb270c08
DB
512 int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
513 int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
e738cee9 514 if (idx->ents_allocated <= idx->entry) {
bb270c08
DB
515 idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
516 if (!idx->cluster)
517 return -1;
e738cee9 518 idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
bb270c08
DB
519 if (!idx->cluster[cl])
520 return -1;
521 idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
522 }
115329f1 523
bb270c08 524 idx->cluster[cl][id].flags = flags;
e738cee9
RS
525 idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
526 idx->cluster[cl][id].len = size;
bb270c08 527 idx->entry++;
de6d9b64 528 }
115329f1 529
de6d9b64
FB
530 put_buffer(pb, tag, 4);
531 put_le32(pb, size);
e928649b 532 put_buffer(pb, pkt->data, size);
de6d9b64
FB
533 if (size & 1)
534 put_byte(pb, 0);
535
536 put_flush_packet(pb);
537 return 0;
538}
539
540static int avi_write_trailer(AVFormatContext *s)
541{
de6d9b64 542 AVIContext *avi = s->priv_data;
899681cd 543 ByteIOContext *pb = s->pb;
ce9fce63 544 int res = 0;
e738cee9 545 int i, j, n, nb_frames;
bc5c918e 546 int64_t file_size;
e738cee9 547
5c4e1928
MN
548 if (!url_is_streamed(pb)){
549 if (avi->riff_id == 1) {
550 end_tag(pb, avi->movi_list);
551 res = avi_write_idx1(s);
552 end_tag(pb, avi->riff_start);
553 } else {
554 avi_write_ix(s);
555 end_tag(pb, avi->movi_list);
556 end_tag(pb, avi->riff_start);
557
558 file_size = url_ftell(pb);
559 url_fseek(pb, avi->odml_list - 8, SEEK_SET);
560 put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
561 url_fskip(pb, 16);
562
563 for (n=nb_frames=0;n<s->nb_streams;n++) {
564 AVCodecContext *stream = s->streams[n]->codec;
565 if (stream->codec_type == CODEC_TYPE_VIDEO) {
566 if (nb_frames < avi->packet_count[n])
567 nb_frames = avi->packet_count[n];
568 } else {
569 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
570 nb_frames += avi->packet_count[n];
571 }
86bec9a1
J
572 }
573 }
5c4e1928
MN
574 put_le32(pb, nb_frames);
575 url_fseek(pb, file_size, SEEK_SET);
5bce834e 576
5c4e1928
MN
577 avi_write_counters(s, avi->riff_id);
578 }
a2a2668d 579 }
de6d9b64 580 put_flush_packet(pb);
e738cee9
RS
581
582 for (i=0; i<MAX_STREAMS; i++) {
bb270c08 583 for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
e738cee9 584 av_free(avi->indexes[i].cluster[j]);
bb270c08
DB
585 av_free(avi->indexes[i].cluster);
586 avi->indexes[i].cluster = NULL;
587 avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
e738cee9 588 }
115329f1 589
ce9fce63 590 return res;
de6d9b64
FB
591}
592
ff70e601 593AVOutputFormat avi_muxer = {
de6d9b64 594 "avi",
bde15e74 595 NULL_IF_CONFIG_SMALL("AVI format"),
de6d9b64
FB
596 "video/x-msvideo",
597 "avi",
c9a65ca8 598 sizeof(AVIContext),
de6d9b64 599 CODEC_ID_MP2,
22cf0455 600 CODEC_ID_MPEG4,
de6d9b64
FB
601 avi_write_header,
602 avi_write_packet,
603 avi_write_trailer,
c1854592 604 .codec_tag= (const AVCodecTag* const []){codec_bmp_tags, codec_wav_tags, 0},
de6d9b64 605};
ff70e601 606#endif //CONFIG_AVI_MUXER