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check sample_fmt in avcodec_open

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check AVCodecContext->sample_fmt against AVCodec->sample_fmts[] to ensure
that the encoder supports the specified sample format. Error out if it doesn't.
Previously, it would continue and output garbage. Fixes issue 2587.
This commit is contained in:
Reimar Döffinger 2011-02-09 10:52:33 -05:00 committed by Ronald S. Bultje
parent f4c79d1e0b
commit 2cfa2d9258
1 changed files with 10 additions and 0 deletions
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10
libavcodec/utils.c
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@ -551,6 +551,16 @@ int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
avctx->codec->max_lowres);
goto free_and_end;
}
if (avctx->codec->sample_fmts && avctx->codec->encode) {
int i;
for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++)
if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
break;
if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
av_log(avctx, AV_LOG_ERROR, "Specified sample_fmt is not supported.\n");
goto free_and_end;
}
}
if(avctx->codec->init && !(avctx->active_thread_type&FF_THREAD_FRAME)){
ret = avctx->codec->init(avctx);