avcodec/mjpegdec: fix len computation in ff_mjpeg_decode_dqt()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago · 81cf910856
parent cf9ab119d0
commit 81cf910856
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@ -189,7 +189,7 @@ int ff_mjpeg_decode_dqt(MJpegDecodeContext *s)
                                 s->quant_matrixes[index][s->scantable.permutated[8]]) >> 1;
        av_log(s->avctx, AV_LOG_DEBUG, "qscale[%d]: %d\n",
               index, s->qscale[index]);
-        len -= 65;
+        len -= 1 + 64 * (1+pr);
    }
    return 0;
 }