media: mediatek: vcodec: fix h264 cavlc bitstream fail

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[ Upstream commit d555409dd1 ]

Some cavlc bistream will decode fail when the frame size is less than
20 bytes. Need to add pending data at the end of the bitstream.

For the minimum size of mapped memory is 256 bytes(16x16), adding four
bytes data won't lead to access unknown virtual memory.

Fixes: 59fba9eed5 ("media: mediatek: vcodec: support stateless H.264 decoding for mt8192")
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Yunfei Dong 2022-10-18 19:41:22 +08:00 • committed by Greg Kroah-Hartman

parent 246f266634

commit ad8eb8ed0d

1 changed files with 29 additions and 3 deletions

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drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.c

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