From: Chen-Yu Tsai wenst@chromium.org
stable inclusion from stable-5.10.80 commit 39275d2ec6ffbdb97d462e2529b3ae9e4da4bfca bugzilla: 185821 https://gitee.com/openeuler/kernel/issues/I4L7CG
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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commit 298d8e8f7bcf023aceb60232d59b983255fec0df upstream.
The rkvdec H.264 decoder currently overrides sizeimage for the output format. This causes issues when userspace requires and requests a larger buffer, but ends up with one of insufficient size.
Instead, only provide a default size if none was requested. This fixes the video_decode_accelerator_tests from Chromium failing on the first frame due to insufficient buffer space. It also aligns the behavior of the rkvdec driver with the Hantro and Cedrus drivers.
Fixes: cd33c830448b ("media: rkvdec: Add the rkvdec driver") Cc: stable@vger.kernel.org Signed-off-by: Chen-Yu Tsai wenst@chromium.org Reviewed-by: Nicolas Dufresne nicolas.dufresne@collabora.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Mauro Carvalho Chehab mchehab+huawei@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Chen Jun chenjun102@huawei.com Reviewed-by: Weilong Chen chenweilong@huawei.com Acked-by: Weilong Chen chenweilong@huawei.com
Signed-off-by: Chen Jun chenjun102@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/staging/media/rkvdec/rkvdec-h264.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c index 7cc3b478a5f4..5487f6d0bcb6 100644 --- a/drivers/staging/media/rkvdec/rkvdec-h264.c +++ b/drivers/staging/media/rkvdec/rkvdec-h264.c @@ -1015,8 +1015,9 @@ static int rkvdec_h264_adjust_fmt(struct rkvdec_ctx *ctx, struct v4l2_pix_format_mplane *fmt = &f->fmt.pix_mp;
fmt->num_planes = 1; - fmt->plane_fmt[0].sizeimage = fmt->width * fmt->height * - RKVDEC_H264_MAX_DEPTH_IN_BYTES; + if (!fmt->plane_fmt[0].sizeimage) + fmt->plane_fmt[0].sizeimage = fmt->width * fmt->height * + RKVDEC_H264_MAX_DEPTH_IN_BYTES; return 0; }