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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.
(cherry picked from commit 2cfa2d925808e6cc6fb7a7c133b7cb7622afd37e)
This commit is contained in:
Reimar Döffinger 2011-02-09 10:52:33 -05:00 committed by Michael Niedermayer
parent 6ff532b95d
commit 7ade06cc2e
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;
}
}
avctx->pts_correction_num_faulty_pts =
avctx->pts_correction_num_faulty_dts = 0;