On Fri Nov 28 14:16:16 2025 -0500, Nicolas Dufresne wrote:
> This is not supported by the hardware and trying to decode
> these leads to LAT timeout errors.
>
> Reviewed-by: AngeloGioacchino Del Regno
> <[email protected]>
> Signed-off-by: Nicolas Dufresne <[email protected]>
> Signed-off-by: Hans Verkuil <[email protected]>
Patch committed.
Thanks,
Hans Verkuil
.../platform/mediatek/vcodec/decoder/mtk_vcodec_dec_stateless.c | 6 ++++++
1 file changed, 6 insertions(+)
---
diff --git
a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_stateless.c
b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_stateless.c
index 6598a9e160b7..8e1cf16a168a 100644
--- a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_stateless.c
+++ b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_stateless.c
@@ -518,6 +518,12 @@ static int mtk_vdec_s_ctrl(struct v4l2_ctrl *ctrl)
mtk_v4l2_vdec_err(ctx, "VP9: bit_depth:%d",
frame->bit_depth);
return -EINVAL;
}
+
+ if (!(frame->flags & V4L2_VP9_FRAME_FLAG_X_SUBSAMPLING) ||
+ !(frame->flags & V4L2_VP9_FRAME_FLAG_Y_SUBSAMPLING)) {
+ mtk_v4l2_vdec_err(ctx, "VP9: only 420 subsampling is
supported");
+ return -EINVAL;
+ }
break;
case V4L2_CID_STATELESS_AV1_SEQUENCE:
seq = (struct v4l2_ctrl_av1_sequence *)hdr_ctrl->p_new.p;
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