From: Ming Qian ming.qian@nxp.com
[ Upstream commit 996f4e89fabe44ab9ac0aabb0697aeecbe717eca ]
adjust the value range of gop size from [0, 65535] to [1, 8000]. when the gop size is set to a too large value, it may affect the encoded picture quality. so constrain it to a reasonable range.
Fixes: 0401e659c1f92 ("media: amphion: add v4l2 m2m vpu encoder stateful driver") Signed-off-by: Ming Qian ming.qian@nxp.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Mauro Carvalho Chehab mchehab@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/platform/amphion/venc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/amphion/venc.c b/drivers/media/platform/amphion/venc.c index 43d61d82f58c..0f21a181c1de 100644 --- a/drivers/media/platform/amphion/venc.c +++ b/drivers/media/platform/amphion/venc.c @@ -644,7 +644,7 @@ static int venc_ctrl_init(struct vpu_inst *inst) BITRATE_DEFAULT_PEAK);
v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops, - V4L2_CID_MPEG_VIDEO_GOP_SIZE, 0, (1 << 16) - 1, 1, 30); + V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 8000, 1, 30);
v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops, V4L2_CID_MPEG_VIDEO_B_FRAMES, 0, 4, 1, 0);