Just like codec-specific controls validation, controls initialization
for codecs is quite specific so move it to a specific helper for
MPEG-2 for increased clarity.
Signed-off-by: Paul Kocialkowski <paul.kocialkow...@bootlin.com>
---
drivers/media/v4l2-core/v4l2-ctrls.c | 33 ++++++++++++++++++----------
1 file changed, 22 insertions(+), 11 deletions(-)
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c
b/drivers/media/v4l2-core/v4l2-ctrls.c
index 824126267c44..84916b6889e2 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -1494,11 +1494,29 @@ static bool std_equal(const struct v4l2_ctrl *ctrl, u32
idx,
}
}
+static void std_init_mpeg2(const struct v4l2_ctrl *ctrl, u32 idx,
+ union v4l2_ctrl_ptr ptr)
+{
+ struct v4l2_ctrl_mpeg2_slice_params *slice_params =
+ ptr.p_mpeg2_slice_params;
+
+ switch ((u32)ctrl->type) {
+ case V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS:
+ /* 4:2:0 */
+ slice_params->sequence.chroma_format = 1;
+ /* 8 bits */
+ slice_params->picture.intra_dc_precision = 0;
+ /* interlaced top field */
+ slice_params->picture.picture_structure = 1;
+ slice_params->picture.picture_coding_type =
+ V4L2_MPEG2_PICTURE_CODING_TYPE_I;
+ break;
+ }
+}
+
static void std_init(const struct v4l2_ctrl *ctrl, u32 idx,
union v4l2_ctrl_ptr ptr)
{
- struct v4l2_ctrl_mpeg2_slice_params *p_mpeg2_slice_params;
-
/*
* The cast is needed to get rid of a gcc warning complaining that
* V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS is not part of the
@@ -1530,15 +1548,8 @@ static void std_init(const struct v4l2_ctrl *ctrl, u32
idx,
ptr.p_u32[idx] = ctrl->default_value;
break;
case V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS:
- p_mpeg2_slice_params = ptr.p;
- /* 4:2:0 */
- p_mpeg2_slice_params->sequence.chroma_format = 1;
- /* 8 bits */
- p_mpeg2_slice_params->picture.intra_dc_precision = 0;
- /* interlaced top field */
- p_mpeg2_slice_params->picture.picture_structure = 1;
- p_mpeg2_slice_params->picture.picture_coding_type =
- V4L2_MPEG2_PICTURE_CODING_TYPE_I;
+ case V4L2_CTRL_TYPE_MPEG2_QUANTIZATION:
+ std_init_mpeg2(ctrl, idx, ptr);
break;
default:
idx *= ctrl->elem_size;
--
2.21.0
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