0,0 → 1,665 |
/* |
* AVI muxer |
* Copyright (c) 2000 Fabrice Bellard |
* |
* This file is part of FFmpeg. |
* |
* FFmpeg is free software; you can redistribute it and/or |
* modify it under the terms of the GNU Lesser General Public |
* License as published by the Free Software Foundation; either |
* version 2.1 of the License, or (at your option) any later version. |
* |
* FFmpeg is distributed in the hope that it will be useful, |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
* Lesser General Public License for more details. |
* |
* You should have received a copy of the GNU Lesser General Public |
* License along with FFmpeg; if not, write to the Free Software |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
*/ |
|
//#define DEBUG |
|
#include "avformat.h" |
#include "internal.h" |
#include "avi.h" |
#include "avio_internal.h" |
#include "riff.h" |
#include "libavutil/intreadwrite.h" |
#include "libavutil/dict.h" |
#include "libavutil/avassert.h" |
#include "libavutil/timestamp.h" |
|
/* |
* TODO: |
* - fill all fields if non streamed (nb_frames for example) |
*/ |
|
typedef struct AVIIentry { |
unsigned int flags, pos, len; |
} AVIIentry; |
|
#define AVI_INDEX_CLUSTER_SIZE 16384 |
|
typedef struct AVIIndex { |
int64_t indx_start; |
int entry; |
int ents_allocated; |
AVIIentry** cluster; |
} AVIIndex; |
|
typedef struct { |
int64_t riff_start, movi_list, odml_list; |
int64_t frames_hdr_all; |
int riff_id; |
} AVIContext; |
|
typedef struct { |
int64_t frames_hdr_strm; |
int64_t audio_strm_length; |
int packet_count; |
int entry; |
|
AVIIndex indexes; |
} AVIStream ; |
|
static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id) |
{ |
int cl = ent_id / AVI_INDEX_CLUSTER_SIZE; |
int id = ent_id % AVI_INDEX_CLUSTER_SIZE; |
return &idx->cluster[cl][id]; |
} |
|
static int64_t avi_start_new_riff(AVFormatContext *s, AVIOContext *pb, |
const char* riff_tag, const char* list_tag) |
{ |
AVIContext *avi= s->priv_data; |
int64_t loff; |
int i; |
|
avi->riff_id++; |
for (i=0; i<s->nb_streams; i++){ |
AVIStream *avist= s->streams[i]->priv_data; |
avist->indexes.entry = 0; |
} |
|
avi->riff_start = ff_start_tag(pb, "RIFF"); |
ffio_wfourcc(pb, riff_tag); |
loff = ff_start_tag(pb, "LIST"); |
ffio_wfourcc(pb, list_tag); |
return loff; |
} |
|
static char* avi_stream2fourcc(char* tag, int index, enum AVMediaType type) |
{ |
tag[0] = '0' + index/10; |
tag[1] = '0' + index%10; |
if (type == AVMEDIA_TYPE_VIDEO) { |
tag[2] = 'd'; |
tag[3] = 'c'; |
} else if (type == AVMEDIA_TYPE_SUBTITLE) { |
// note: this is not an official code |
tag[2] = 's'; |
tag[3] = 'b'; |
} else { |
tag[2] = 'w'; |
tag[3] = 'b'; |
} |
tag[4] = '\0'; |
return tag; |
} |
|
static int avi_write_counters(AVFormatContext* s, int riff_id) |
{ |
AVIOContext *pb = s->pb; |
AVIContext *avi = s->priv_data; |
int n, au_byterate, au_ssize, au_scale, nb_frames = 0; |
int64_t file_size; |
AVCodecContext* stream; |
|
file_size = avio_tell(pb); |
for(n = 0; n < s->nb_streams; n++) { |
AVIStream *avist= s->streams[n]->priv_data; |
|
av_assert0(avist->frames_hdr_strm); |
stream = s->streams[n]->codec; |
avio_seek(pb, avist->frames_hdr_strm, SEEK_SET); |
ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale); |
if(au_ssize == 0) { |
avio_wl32(pb, avist->packet_count); |
} else { |
avio_wl32(pb, avist->audio_strm_length / au_ssize); |
} |
if(stream->codec_type == AVMEDIA_TYPE_VIDEO) |
nb_frames = FFMAX(nb_frames, avist->packet_count); |
} |
if(riff_id == 1) { |
av_assert0(avi->frames_hdr_all); |
avio_seek(pb, avi->frames_hdr_all, SEEK_SET); |
avio_wl32(pb, nb_frames); |
} |
avio_seek(pb, file_size, SEEK_SET); |
|
return 0; |
} |
|
static int avi_write_header(AVFormatContext *s) |
{ |
AVIContext *avi = s->priv_data; |
AVIOContext *pb = s->pb; |
int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale; |
AVCodecContext *stream, *video_enc; |
int64_t list1, list2, strh, strf; |
AVDictionaryEntry *t = NULL; |
|
if (s->nb_streams > AVI_MAX_STREAM_COUNT) { |
av_log(s, AV_LOG_ERROR, "AVI does not support >%d streams\n", |
AVI_MAX_STREAM_COUNT); |
return AVERROR(EINVAL); |
} |
|
for(n=0;n<s->nb_streams;n++) { |
s->streams[n]->priv_data= av_mallocz(sizeof(AVIStream)); |
if(!s->streams[n]->priv_data) |
return AVERROR(ENOMEM); |
} |
|
/* header list */ |
avi->riff_id = 0; |
list1 = avi_start_new_riff(s, pb, "AVI ", "hdrl"); |
|
/* avi header */ |
ffio_wfourcc(pb, "avih"); |
avio_wl32(pb, 14 * 4); |
bitrate = 0; |
|
video_enc = NULL; |
for(n=0;n<s->nb_streams;n++) { |
stream = s->streams[n]->codec; |
bitrate += stream->bit_rate; |
if (stream->codec_type == AVMEDIA_TYPE_VIDEO) |
video_enc = stream; |
} |
|
nb_frames = 0; |
|
if(video_enc){ |
avio_wl32(pb, (uint32_t)(INT64_C(1000000) * video_enc->time_base.num / video_enc->time_base.den)); |
} else { |
avio_wl32(pb, 0); |
} |
avio_wl32(pb, bitrate / 8); /* XXX: not quite exact */ |
avio_wl32(pb, 0); /* padding */ |
if (!pb->seekable) |
avio_wl32(pb, AVIF_TRUSTCKTYPE | AVIF_ISINTERLEAVED); /* flags */ |
else |
avio_wl32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */ |
avi->frames_hdr_all = avio_tell(pb); /* remember this offset to fill later */ |
avio_wl32(pb, nb_frames); /* nb frames, filled later */ |
avio_wl32(pb, 0); /* initial frame */ |
avio_wl32(pb, s->nb_streams); /* nb streams */ |
avio_wl32(pb, 1024 * 1024); /* suggested buffer size */ |
if(video_enc){ |
avio_wl32(pb, video_enc->width); |
avio_wl32(pb, video_enc->height); |
} else { |
avio_wl32(pb, 0); |
avio_wl32(pb, 0); |
} |
avio_wl32(pb, 0); /* reserved */ |
avio_wl32(pb, 0); /* reserved */ |
avio_wl32(pb, 0); /* reserved */ |
avio_wl32(pb, 0); /* reserved */ |
|
/* stream list */ |
for(i=0;i<n;i++) { |
AVIStream *avist= s->streams[i]->priv_data; |
list2 = ff_start_tag(pb, "LIST"); |
ffio_wfourcc(pb, "strl"); |
|
stream = s->streams[i]->codec; |
|
/* stream generic header */ |
strh = ff_start_tag(pb, "strh"); |
switch(stream->codec_type) { |
case AVMEDIA_TYPE_SUBTITLE: |
// XSUB subtitles behave like video tracks, other subtitles |
// are not (yet) supported. |
if (stream->codec_id != AV_CODEC_ID_XSUB) { |
av_log(s, AV_LOG_ERROR, "Subtitle streams other than DivX XSUB are not supported by the AVI muxer.\n"); |
return AVERROR_PATCHWELCOME; |
} |
case AVMEDIA_TYPE_VIDEO: ffio_wfourcc(pb, "vids"); break; |
case AVMEDIA_TYPE_AUDIO: ffio_wfourcc(pb, "auds"); break; |
// case AVMEDIA_TYPE_TEXT : ffio_wfourcc(pb, "txts"); break; |
case AVMEDIA_TYPE_DATA : ffio_wfourcc(pb, "dats"); break; |
} |
if(stream->codec_type == AVMEDIA_TYPE_VIDEO || |
stream->codec_id == AV_CODEC_ID_XSUB) |
avio_wl32(pb, stream->codec_tag); |
else |
avio_wl32(pb, 1); |
avio_wl32(pb, 0); /* flags */ |
avio_wl16(pb, 0); /* priority */ |
avio_wl16(pb, 0); /* language */ |
avio_wl32(pb, 0); /* initial frame */ |
|
ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale); |
|
if ( stream->codec_type == AVMEDIA_TYPE_VIDEO |
&& stream->codec_id != AV_CODEC_ID_XSUB |
&& au_byterate > 1000LL*au_scale) { |
au_byterate = 600; |
au_scale = 1; |
} |
avpriv_set_pts_info(s->streams[i], 64, au_scale, au_byterate); |
if(stream->codec_id == AV_CODEC_ID_XSUB) |
au_scale = au_byterate = 0; |
|
avio_wl32(pb, au_scale); /* scale */ |
avio_wl32(pb, au_byterate); /* rate */ |
|
avio_wl32(pb, 0); /* start */ |
avist->frames_hdr_strm = avio_tell(pb); /* remember this offset to fill later */ |
if (!pb->seekable) |
avio_wl32(pb, AVI_MAX_RIFF_SIZE); /* FIXME: this may be broken, but who cares */ |
else |
avio_wl32(pb, 0); /* length, XXX: filled later */ |
|
/* suggested buffer size */ //FIXME set at the end to largest chunk |
if(stream->codec_type == AVMEDIA_TYPE_VIDEO) |
avio_wl32(pb, 1024 * 1024); |
else if(stream->codec_type == AVMEDIA_TYPE_AUDIO) |
avio_wl32(pb, 12 * 1024); |
else |
avio_wl32(pb, 0); |
avio_wl32(pb, -1); /* quality */ |
avio_wl32(pb, au_ssize); /* sample size */ |
avio_wl32(pb, 0); |
avio_wl16(pb, stream->width); |
avio_wl16(pb, stream->height); |
ff_end_tag(pb, strh); |
|
if(stream->codec_type != AVMEDIA_TYPE_DATA){ |
int ret; |
|
strf = ff_start_tag(pb, "strf"); |
switch(stream->codec_type) { |
case AVMEDIA_TYPE_SUBTITLE: |
// XSUB subtitles behave like video tracks, other subtitles |
// are not (yet) supported. |
if (stream->codec_id != AV_CODEC_ID_XSUB) break; |
case AVMEDIA_TYPE_VIDEO: |
ff_put_bmp_header(pb, stream, ff_codec_bmp_tags, 0); |
break; |
case AVMEDIA_TYPE_AUDIO: |
if ((ret = ff_put_wav_header(pb, stream)) < 0) { |
return ret; |
} |
break; |
default: |
av_log(s, AV_LOG_ERROR, |
"Invalid or not supported codec type '%s' found in the input\n", |
(char *)av_x_if_null(av_get_media_type_string(stream->codec_type), "?")); |
return AVERROR(EINVAL); |
} |
ff_end_tag(pb, strf); |
if ((t = av_dict_get(s->streams[i]->metadata, "title", NULL, 0))) { |
ff_riff_write_info_tag(s->pb, "strn", t->value); |
t = NULL; |
} |
} |
|
if (pb->seekable) { |
unsigned char tag[5]; |
int j; |
|
/* Starting to lay out AVI OpenDML master index. |
* We want to make it JUNK entry for now, since we'd |
* like to get away without making AVI an OpenDML one |
* for compatibility reasons. |
*/ |
avist->indexes.entry = avist->indexes.ents_allocated = 0; |
avist->indexes.indx_start = ff_start_tag(pb, "JUNK"); |
avio_wl16(pb, 4); /* wLongsPerEntry */ |
avio_w8(pb, 0); /* bIndexSubType (0 == frame index) */ |
avio_w8(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */ |
avio_wl32(pb, 0); /* nEntriesInUse (will fill out later on) */ |
ffio_wfourcc(pb, avi_stream2fourcc(tag, i, stream->codec_type)); |
/* dwChunkId */ |
avio_wl64(pb, 0); /* dwReserved[3] |
avio_wl32(pb, 0); Must be 0. */ |
for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++) |
avio_wl64(pb, 0); |
ff_end_tag(pb, avist->indexes.indx_start); |
} |
|
if( stream->codec_type == AVMEDIA_TYPE_VIDEO |
&& s->streams[i]->sample_aspect_ratio.num>0 |
&& s->streams[i]->sample_aspect_ratio.den>0){ |
int vprp= ff_start_tag(pb, "vprp"); |
AVRational dar = av_mul_q(s->streams[i]->sample_aspect_ratio, |
(AVRational){stream->width, stream->height}); |
int num, den; |
av_reduce(&num, &den, dar.num, dar.den, 0xFFFF); |
|
avio_wl32(pb, 0); //video format = unknown |
avio_wl32(pb, 0); //video standard= unknown |
avio_wl32(pb, lrintf(1.0/av_q2d(stream->time_base))); |
avio_wl32(pb, stream->width ); |
avio_wl32(pb, stream->height); |
avio_wl16(pb, den); |
avio_wl16(pb, num); |
avio_wl32(pb, stream->width ); |
avio_wl32(pb, stream->height); |
avio_wl32(pb, 1); //progressive FIXME |
|
avio_wl32(pb, stream->height); |
avio_wl32(pb, stream->width ); |
avio_wl32(pb, stream->height); |
avio_wl32(pb, stream->width ); |
avio_wl32(pb, 0); |
avio_wl32(pb, 0); |
|
avio_wl32(pb, 0); |
avio_wl32(pb, 0); |
ff_end_tag(pb, vprp); |
} |
|
ff_end_tag(pb, list2); |
} |
|
if (pb->seekable) { |
/* AVI could become an OpenDML one, if it grows beyond 2Gb range */ |
avi->odml_list = ff_start_tag(pb, "JUNK"); |
ffio_wfourcc(pb, "odml"); |
ffio_wfourcc(pb, "dmlh"); |
avio_wl32(pb, 248); |
for (i = 0; i < 248; i+= 4) |
avio_wl32(pb, 0); |
ff_end_tag(pb, avi->odml_list); |
} |
|
ff_end_tag(pb, list1); |
|
ff_riff_write_info(s); |
|
/* some padding for easier tag editing */ |
list2 = ff_start_tag(pb, "JUNK"); |
for (i = 0; i < 1016; i += 4) |
avio_wl32(pb, 0); |
ff_end_tag(pb, list2); |
|
avi->movi_list = ff_start_tag(pb, "LIST"); |
ffio_wfourcc(pb, "movi"); |
|
avio_flush(pb); |
|
return 0; |
} |
|
static int avi_write_ix(AVFormatContext *s) |
{ |
AVIOContext *pb = s->pb; |
AVIContext *avi = s->priv_data; |
char tag[5]; |
char ix_tag[] = "ix00"; |
int i, j; |
|
av_assert0(pb->seekable); |
|
if (avi->riff_id > AVI_MASTER_INDEX_SIZE) { |
av_log(s, AV_LOG_ERROR, "Invalid riff index %d > %d\n", |
avi->riff_id, AVI_MASTER_INDEX_SIZE); |
return AVERROR(EINVAL); |
} |
|
for (i=0;i<s->nb_streams;i++) { |
AVIStream *avist= s->streams[i]->priv_data; |
int64_t ix, pos; |
|
avi_stream2fourcc(tag, i, s->streams[i]->codec->codec_type); |
ix_tag[3] = '0' + i; |
|
/* Writing AVI OpenDML leaf index chunk */ |
ix = avio_tell(pb); |
ffio_wfourcc(pb, ix_tag); /* ix?? */ |
avio_wl32(pb, avist->indexes.entry * 8 + 24); |
/* chunk size */ |
avio_wl16(pb, 2); /* wLongsPerEntry */ |
avio_w8(pb, 0); /* bIndexSubType (0 == frame index) */ |
avio_w8(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */ |
avio_wl32(pb, avist->indexes.entry); |
/* nEntriesInUse */ |
ffio_wfourcc(pb, tag); /* dwChunkId */ |
avio_wl64(pb, avi->movi_list);/* qwBaseOffset */ |
avio_wl32(pb, 0); /* dwReserved_3 (must be 0) */ |
|
for (j=0; j<avist->indexes.entry; j++) { |
AVIIentry* ie = avi_get_ientry(&avist->indexes, j); |
avio_wl32(pb, ie->pos + 8); |
avio_wl32(pb, ((uint32_t)ie->len & ~0x80000000) | |
(ie->flags & 0x10 ? 0 : 0x80000000)); |
} |
avio_flush(pb); |
pos = avio_tell(pb); |
|
/* Updating one entry in the AVI OpenDML master index */ |
avio_seek(pb, avist->indexes.indx_start - 8, SEEK_SET); |
ffio_wfourcc(pb, "indx"); /* enabling this entry */ |
avio_skip(pb, 8); |
avio_wl32(pb, avi->riff_id); /* nEntriesInUse */ |
avio_skip(pb, 16*avi->riff_id); |
avio_wl64(pb, ix); /* qwOffset */ |
avio_wl32(pb, pos - ix); /* dwSize */ |
avio_wl32(pb, avist->indexes.entry); /* dwDuration */ |
|
avio_seek(pb, pos, SEEK_SET); |
} |
return 0; |
} |
|
static int avi_write_idx1(AVFormatContext *s) |
{ |
AVIOContext *pb = s->pb; |
AVIContext *avi = s->priv_data; |
int64_t idx_chunk; |
int i; |
char tag[5]; |
|
if (pb->seekable) { |
AVIStream *avist; |
AVIIentry* ie = 0, *tie; |
int empty, stream_id = -1; |
|
idx_chunk = ff_start_tag(pb, "idx1"); |
for(i=0; i<s->nb_streams; i++){ |
avist= s->streams[i]->priv_data; |
avist->entry=0; |
} |
|
do { |
empty = 1; |
for (i=0; i<s->nb_streams; i++) { |
avist= s->streams[i]->priv_data; |
if (avist->indexes.entry <= avist->entry) |
continue; |
|
tie = avi_get_ientry(&avist->indexes, avist->entry); |
if (empty || tie->pos < ie->pos) { |
ie = tie; |
stream_id = i; |
} |
empty = 0; |
} |
if (!empty) { |
avist= s->streams[stream_id]->priv_data; |
avi_stream2fourcc(tag, stream_id, |
s->streams[stream_id]->codec->codec_type); |
ffio_wfourcc(pb, tag); |
avio_wl32(pb, ie->flags); |
avio_wl32(pb, ie->pos); |
avio_wl32(pb, ie->len); |
avist->entry++; |
} |
} while (!empty); |
ff_end_tag(pb, idx_chunk); |
|
avi_write_counters(s, avi->riff_id); |
} |
return 0; |
} |
|
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt) |
{ |
AVIContext *avi = s->priv_data; |
AVIOContext *pb = s->pb; |
unsigned char tag[5]; |
unsigned int flags=0; |
const int stream_index= pkt->stream_index; |
AVIStream *avist= s->streams[stream_index]->priv_data; |
AVCodecContext *enc= s->streams[stream_index]->codec; |
int size= pkt->size; |
|
av_dlog(s, "dts:%s packet_count:%d stream_index:%d\n", av_ts2str(pkt->dts), avist->packet_count, stream_index); |
while(enc->block_align==0 && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avist->packet_count && enc->codec_id != AV_CODEC_ID_XSUB && avist->packet_count){ |
AVPacket empty_packet; |
|
if(pkt->dts - avist->packet_count > 60000){ |
av_log(s, AV_LOG_ERROR, "Too large number of skipped frames %"PRId64" > 60000\n", pkt->dts - avist->packet_count); |
return AVERROR(EINVAL); |
} |
|
av_init_packet(&empty_packet); |
empty_packet.size= 0; |
empty_packet.data= NULL; |
empty_packet.stream_index= stream_index; |
avi_write_packet(s, &empty_packet); |
av_dlog(s, "dup dts:%s packet_count:%d\n", av_ts2str(pkt->dts), avist->packet_count); |
} |
avist->packet_count++; |
|
// Make sure to put an OpenDML chunk when the file size exceeds the limits |
if (pb->seekable && |
(avio_tell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) { |
|
avi_write_ix(s); |
ff_end_tag(pb, avi->movi_list); |
|
if (avi->riff_id == 1) |
avi_write_idx1(s); |
|
ff_end_tag(pb, avi->riff_start); |
avi->movi_list = avi_start_new_riff(s, pb, "AVIX", "movi"); |
} |
|
avi_stream2fourcc(tag, stream_index, enc->codec_type); |
if(pkt->flags&AV_PKT_FLAG_KEY) |
flags = 0x10; |
if (enc->codec_type == AVMEDIA_TYPE_AUDIO) { |
avist->audio_strm_length += size; |
} |
|
if (s->pb->seekable) { |
AVIIndex* idx = &avist->indexes; |
int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE; |
int id = idx->entry % AVI_INDEX_CLUSTER_SIZE; |
if (idx->ents_allocated <= idx->entry) { |
idx->cluster = av_realloc_f(idx->cluster, sizeof(void*), cl+1); |
if (!idx->cluster) { |
idx->ents_allocated = 0; |
idx->entry = 0; |
return AVERROR(ENOMEM); |
} |
idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry)); |
if (!idx->cluster[cl]) |
return AVERROR(ENOMEM); |
idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE; |
} |
|
idx->cluster[cl][id].flags = flags; |
idx->cluster[cl][id].pos = avio_tell(pb) - avi->movi_list; |
idx->cluster[cl][id].len = size; |
idx->entry++; |
} |
|
avio_write(pb, tag, 4); |
avio_wl32(pb, size); |
avio_write(pb, pkt->data, size); |
if (size & 1) |
avio_w8(pb, 0); |
|
return 0; |
} |
|
static int avi_write_trailer(AVFormatContext *s) |
{ |
AVIContext *avi = s->priv_data; |
AVIOContext *pb = s->pb; |
int res = 0; |
int i, j, n, nb_frames; |
int64_t file_size; |
|
if (pb->seekable){ |
if (avi->riff_id == 1) { |
ff_end_tag(pb, avi->movi_list); |
res = avi_write_idx1(s); |
ff_end_tag(pb, avi->riff_start); |
} else { |
avi_write_ix(s); |
ff_end_tag(pb, avi->movi_list); |
ff_end_tag(pb, avi->riff_start); |
|
file_size = avio_tell(pb); |
avio_seek(pb, avi->odml_list - 8, SEEK_SET); |
ffio_wfourcc(pb, "LIST"); /* Making this AVI OpenDML one */ |
avio_skip(pb, 16); |
|
for (n=nb_frames=0;n<s->nb_streams;n++) { |
AVCodecContext *stream = s->streams[n]->codec; |
AVIStream *avist= s->streams[n]->priv_data; |
|
if (stream->codec_type == AVMEDIA_TYPE_VIDEO) { |
if (nb_frames < avist->packet_count) |
nb_frames = avist->packet_count; |
} else { |
if (stream->codec_id == AV_CODEC_ID_MP2 || stream->codec_id == AV_CODEC_ID_MP3) { |
nb_frames += avist->packet_count; |
} |
} |
} |
avio_wl32(pb, nb_frames); |
avio_seek(pb, file_size, SEEK_SET); |
|
avi_write_counters(s, avi->riff_id); |
} |
} |
|
for (i=0; i<s->nb_streams; i++) { |
AVIStream *avist= s->streams[i]->priv_data; |
for (j=0; j<avist->indexes.ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++) |
av_freep(&avist->indexes.cluster[j]); |
av_freep(&avist->indexes.cluster); |
avist->indexes.ents_allocated = avist->indexes.entry = 0; |
} |
|
return res; |
} |
|
AVOutputFormat ff_avi_muxer = { |
.name = "avi", |
.long_name = NULL_IF_CONFIG_SMALL("AVI (Audio Video Interleaved)"), |
.mime_type = "video/x-msvideo", |
.extensions = "avi", |
.priv_data_size = sizeof(AVIContext), |
.audio_codec = CONFIG_LIBMP3LAME ? AV_CODEC_ID_MP3 : AV_CODEC_ID_AC3, |
.video_codec = AV_CODEC_ID_MPEG4, |
.write_header = avi_write_header, |
.write_packet = avi_write_packet, |
.write_trailer = avi_write_trailer, |
.codec_tag = (const AVCodecTag* const []){ |
ff_codec_bmp_tags, ff_codec_wav_tags, 0 |
}, |
.flags = AVFMT_VARIABLE_FPS, |
}; |