avcodec/mfenc: check IMFSample_ConvertToContiguousBuffer() for failure
Fixes: CID1591911 Logically dead code Sponsored-by: Sovereign Tech Fund Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit 86cd7c68bc65df6703391f0cdcdbf7c57d6c4780) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -248,7 +248,7 @@ static int mf_sample_to_avpacket(AVCodecContext *avctx, IMFSample *sample, AVPac
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if ((ret = ff_get_encode_buffer(avctx, avpkt, len, 0)) < 0)
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return ret;
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IMFSample_ConvertToContiguousBuffer(sample, &buffer);
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hr = IMFSample_ConvertToContiguousBuffer(sample, &buffer);
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if (FAILED(hr))
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return AVERROR_EXTERNAL;
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