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avformat/bit: only accept the g729 codec and 1 channel 

Other codecs/channel numbers are not supported by this muxer.

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d0b8640f75)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Andreas Cadhalpun 2015-02-26 21:42:02 +01:00 committed by Michael Niedermayer
parent 6fbd897cab
commit 2ec6a7a1e0
1 changed files with 6 additions and 2 deletions
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8
libavformat/bit.c
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@ -119,8 +119,12 @@ static int write_header(AVFormatContext *s)
{
AVCodecContext *enc = s->streams[0]->codec;
enc->codec_id = AV_CODEC_ID_G729;
enc->channels = 1;
if ((enc->codec_id != AV_CODEC_ID_G729) || enc->channels != 1) {
av_log(s, AV_LOG_ERROR,
"only codec g729 with 1 channel is supported by this format\n");
return AVERROR(EINVAL);
}
enc->bits_per_coded_sample = 16;
enc->block_align = (enc->bits_per_coded_sample * enc->channels) >> 3;