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avcodec/fmvc: Fix use of uninitialized memory when the first frame is not a keyframe
Fixes: fmvc-poc.avi Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit 3766aa7343c43521c8ad67aaec26e3c91f6d91c7) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -596,8 +596,8 @@ static av_cold int decode_init(AVCodecContext *avctx)
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s->bpp = avctx->bits_per_coded_sample >> 3;
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s->buffer_size = avctx->width * avctx->height * 4;
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s->pbuffer_size = avctx->width * avctx->height * 4;
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s->buffer = av_malloc(s->buffer_size);
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s->pbuffer = av_malloc(s->pbuffer_size);
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s->buffer = av_mallocz(s->buffer_size);
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s->pbuffer = av_mallocz(s->pbuffer_size);
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if (!s->buffer || !s->pbuffer)
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return AVERROR(ENOMEM);
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