media: controls: Add VP8 stateless type initialization

The VP8_FRAME_HEADER control type is validated, so it
needs a corresponding initialization to produce default
legal values.

For now, only add the minimum required initialization
to satisfy current validation.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index ad47d00..7febfbb 100644 (file)
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -1621,6 +1621,7 @@ static void std_init_compound(const struct v4l2_ctrl *ctrl, u32 idx,
                              union v4l2_ctrl_ptr ptr)
 {
        struct v4l2_ctrl_mpeg2_slice_params *p_mpeg2_slice_params;
+       struct v4l2_ctrl_vp8_frame_header *p_vp8_frame_header;
        void *p = ptr.p + idx * ctrl->elem_size;
 
        if (ctrl->p_def.p_const)
@@ -1643,6 +1644,10 @@ static void std_init_compound(const struct v4l2_ctrl *ctrl, u32 idx,
                p_mpeg2_slice_params->picture.picture_coding_type =
                                        V4L2_MPEG2_PICTURE_CODING_TYPE_I;
                break;
+       case V4L2_CTRL_TYPE_VP8_FRAME_HEADER:
+               p_vp8_frame_header = p;
+               p_vp8_frame_header->num_dct_parts = 1;
+               break;
        }
 }