avcodec/h264_cavlc: Set valid qscale value in ff_h264_decode_mb_cavlc()
authorXiaohan Wang <xhwang@chromium.org>
Sat, 3 Feb 2018 09:43:35 +0000 (01:43 -0800)
committerMichael Niedermayer <michael@niedermayer.cc>
Thu, 12 Apr 2018 22:35:15 +0000 (00:35 +0200)
commite8fb74c0c9cd3bad7f990b8cf98b56ab54ae3a9c
tree21921126ae6de70dbf63fabd96fbe1849e6b9257
parent76a886dae364c665ee83d3eac44e28062b687baa
avcodec/h264_cavlc: Set valid qscale value in ff_h264_decode_mb_cavlc()

When ff_h264_decode_mb_cavlc() failed due to wrong sl->qscale values,
e.g. dquant out of range, set the qscale to be a valid value before
returning -1 and exiting the function. The qscale value can be used
later e.g. in loop filter.

BUG=806122

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 71f39de2a57efc8db1d607b09c162c3b806cd45d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/h264_cavlc.c