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avcodec/samidec: check av_strdup() return value
In function sami_paragraph_to_ass(), the return value of av_strdup() is not checked. To avoid potential NULL dereference, the return value should be checked against NULL. Signed-off-by: Pan Bian <bianpan2016@163.com>
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@ -48,6 +48,9 @@ static int sami_paragraph_to_ass(AVCodecContext *avctx, const char *src)
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AVBPrint *dst_content = &sami->encoded_content;
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AVBPrint *dst_source = &sami->encoded_source;
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if (!dupsrc)
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return AVERROR(ENOMEM);
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av_bprint_clear(&sami->encoded_content);
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av_bprint_clear(&sami->content);
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av_bprint_clear(&sami->encoded_source);
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