diff options
| author | Helen Fornazier <helen.koike@collabora.com> | 2017-06-19 20:00:15 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-06-23 15:06:02 +0300 |
| commit | 441c0db6e5a2f07f91b72e31a22a19180d28ebf5 (patch) | |
| tree | cc401c10416395d2a6bf1284d90ac644fc116f5b /drivers/media | |
| parent | 288a22d45c631f5be5e1c8b83977a78841083d3c (diff) | |
| download | linux-441c0db6e5a2f07f91b72e31a22a19180d28ebf5.tar.xz | |
[media] vimc: common: Add vimc_colorimetry_clamp
Colorimetry value will always be checked in the same way. Adding a
helper macro for that
Signed-off-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/platform/vimc/vimc-common.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/media/platform/vimc/vimc-common.h b/drivers/media/platform/vimc/vimc-common.h index 60ebde28f56b..43483eecb116 100644 --- a/drivers/media/platform/vimc/vimc-common.h +++ b/drivers/media/platform/vimc/vimc-common.h @@ -23,6 +23,32 @@ #include <media/v4l2-device.h> /** + * struct vimc_colorimetry_clamp - Adjust colorimetry parameters + * + * @fmt: the pointer to struct v4l2_pix_format or + * struct v4l2_mbus_framefmt + * + * Entities must check if colorimetry given by the userspace is valid, if not + * then set them as DEFAULT + */ +#define vimc_colorimetry_clamp(fmt) \ +do { \ + if ((fmt)->colorspace == V4L2_COLORSPACE_DEFAULT \ + || (fmt)->colorspace > V4L2_COLORSPACE_DCI_P3) { \ + (fmt)->colorspace = V4L2_COLORSPACE_DEFAULT; \ + (fmt)->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; \ + (fmt)->quantization = V4L2_QUANTIZATION_DEFAULT; \ + (fmt)->xfer_func = V4L2_XFER_FUNC_DEFAULT; \ + } \ + if ((fmt)->ycbcr_enc > V4L2_YCBCR_ENC_SMPTE240M) \ + (fmt)->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; \ + if ((fmt)->quantization > V4L2_QUANTIZATION_LIM_RANGE) \ + (fmt)->quantization = V4L2_QUANTIZATION_DEFAULT; \ + if ((fmt)->xfer_func > V4L2_XFER_FUNC_SMPTE2084) \ + (fmt)->xfer_func = V4L2_XFER_FUNC_DEFAULT; \ +} while (0) + +/** * struct vimc_pix_map - maps media bus code with v4l2 pixel format * * @code: media bus format code defined by MEDIA_BUS_FMT_* macros |