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fix crash when decoding a truncated H264 slice
patch by Alexander Chemeris % ipse P ffmpeg A gmail.com % Original thread: date: Dec 5, 2006 7:26 PM subject: [Ffmpeg-devel] [PATCH] Fix crush when truncated slice passed to H.264 decoder Originally committed as revision 7229 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -4883,6 +4883,10 @@ static int decode_residual(H264Context *h, GetBitContext *gb, DCTELEM *block, in
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if(total_coeff==0)
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if(total_coeff==0)
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return 0;
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return 0;
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if(total_coeff<0) {
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av_log(h->s.avctx, AV_LOG_ERROR, "corrupted macroblock %d %d (total_coeff<0)\n", s->mb_x, s->mb_y);
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return -1;
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}
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trailing_ones= coeff_token&3;
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trailing_ones= coeff_token&3;
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tprintf("trailing:%d, total:%d\n", trailing_ones, total_coeff);
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tprintf("trailing:%d, total:%d\n", trailing_ones, total_coeff);
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