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>
Wed, 14 Feb 2018 00:08:21 +0000 (01:08 +0100)
commit07e46226ae50ce0e4754b5cc11fafaffb1d4116a
tree2a5550f25ab0b700b2cac1a7839b0f154e6a8b4a
parentd797d9f21562f21e04668fa8997f7a629ad01cff
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