[PATCH 1/2] media: rkvdec: Do not override sizeimage for output format

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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@xxxxxxxxxxxxxxx>
Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
---
 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 76e97cbe2512..951e19231da2 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;
 }
 
-- 
2.33.0.882.g93a45727a2-goog




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