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audio only avi patch by (Andriy Rysin <arysin at bcsii dot net>)

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Originally committed as revision 1513 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Andriy Rysin 2003-01-27 02:18:41 +00:00 committed by Michael Niedermayer
parent 49c79e6c5a
commit 850742d785
1 changed files with 12 additions and 0 deletions
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12
libavformat/avienc.c
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@ -199,13 +199,20 @@ static int avi_write_header(AVFormatContext *s)
video_enc = stream;
}
/* allowing audio-only AVI file
if (!video_enc) {
av_free(avi);
return -1;
}
*/
nb_frames = 0;
if(video_enc){
put_le32(pb, (UINT32)(INT64_C(1000000) * FRAME_RATE_BASE / video_enc->frame_rate));
} else {
put_le32(pb, 0);
}
put_le32(pb, bitrate / 8); /* XXX: not quite exact */
put_le32(pb, 0); /* padding */
put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
@ -214,8 +221,13 @@ static int avi_write_header(AVFormatContext *s)
put_le32(pb, 0); /* initial frame */
put_le32(pb, s->nb_streams); /* nb streams */
put_le32(pb, 1024 * 1024); /* suggested buffer size */
if(video_enc){
put_le32(pb, video_enc->width);
put_le32(pb, video_enc->height);
} else {
put_le32(pb, 0);
put_le32(pb, 0);
}
put_le32(pb, 0); /* reserved */
put_le32(pb, 0); /* reserved */
put_le32(pb, 0); /* reserved */