mirror of https://git.ffmpeg.org/ffmpeg.git
avfilter/vf_mix: Check sscanf() return value
Reviewed-by: Nicolas George <george@nsup.org> Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
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@ -108,7 +108,10 @@ static av_cold int init(AVFilterContext *ctx)
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break;
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break;
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p = NULL;
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p = NULL;
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av_sscanf(arg, "%f", &s->weights[i]);
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if (av_sscanf(arg, "%f", &s->weights[i]) != 1) {
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av_log(ctx, AV_LOG_ERROR, "Invalid syntax for weights[%d].\n", i);
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return AVERROR(EINVAL);
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}
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s->wfactor += s->weights[i];
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s->wfactor += s->weights[i];
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last = i;
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last = i;
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}
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}
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