[media] solo6x10: expose encoder quantization setting as V4L2 control
solo6*10 boards have configurable quantization parameter which takes
values from 0 to 31, inclusively.
This change enables setting it with ioctl VIDIOC_S_CTRL with id
V4L2_CID_MPEG_VIDEO_H264_MIN_QP.
Signed-off-by: Andrey Utkin <andrey.utkin@corp.bluecherry.net>
Signed-off-by: Ismael Luceno <ismael.luceno@corp.bluecherry.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
diff --git a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
index 968666a..748a73a 100644
--- a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
+++ b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
@@ -1121,6 +1121,9 @@
case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
solo_enc->gop = ctrl->val;
return 0;
+ case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
+ solo_enc->qp = ctrl->val;
+ return 0;
case V4L2_CID_DETECT_MD_GLOBAL_THRESHOLD:
solo_enc->motion_thresh = ctrl->val << 8;
if (!solo_enc->motion_global || !solo_enc->motion_enabled)
@@ -1271,6 +1274,8 @@
V4L2_CID_SHARPNESS, 0, 15, 1, 0);
v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 255, 1, solo_dev->fps);
+ v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 31, 1, SOLO_DEFAULT_QP);
v4l2_ctrl_new_std_menu(hdl, &solo_ctrl_ops,
V4L2_CID_DETECT_MD_MODE,
V4L2_DETECT_MD_MODE_THRESHOLD_GRID, 0,