mirror of https://git.ffmpeg.org/ffmpeg.git
lavf: check that the context to avformat_open_input() is valid.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -589,6 +589,10 @@ int avformat_open_input(AVFormatContext **ps, const char *filename, AVInputForma
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if (!s && !(s = avformat_alloc_context()))
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if (!s && !(s = avformat_alloc_context()))
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return AVERROR(ENOMEM);
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return AVERROR(ENOMEM);
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if (!s->av_class){
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av_log(0, AV_LOG_ERROR, "Input context has not been properly allocated by avformat_alloc_context() and is not NULL either\n");
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return AVERROR(EINVAL);
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}
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if (fmt)
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if (fmt)
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s->iformat = fmt;
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s->iformat = fmt;
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