summaryrefslogtreecommitdiff
path: root/include/media
diff options
context:
space:
mode:
authorDafna Hirschfeld <dafna.hirschfeld@collabora.com>2020-08-27 22:46:09 +0300
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>2020-09-26 11:21:34 +0300
commit2f491463497ad43bc06968a334747c6b6b20fc74 (patch)
tree54253229cbae001bb6e1892ccd2a8b9abbcae4ba /include/media
parentb38c73ca1c213bbf8a872b334a6bb835becfaba5 (diff)
downloadlinux-2f491463497ad43bc06968a334747c6b6b20fc74.tar.xz
media: vivid: Add support to the CSC API
The CSC API (Colorspace conversion) allows userspace to try to configure the colorspace, transfer function, Y'CbCr/HSV encoding and the quantization for capture devices. This patch adds support to the CSC API in vivid. Using the CSC API, userspace is allowed to do the following: - Set the colorspace. - Set the xfer_func. - Set the ycbcr_enc function for YUV formats. - Set the hsv_enc function for HSV formats - Set the quantization for YUV and RGB formats. Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'include/media')
-rw-r--r--include/media/v4l2-common.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 150ee16ebd81..a3083529b698 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -539,4 +539,33 @@ static inline void v4l2_buffer_set_timestamp(struct v4l2_buffer *buf,
buf->timestamp.tv_usec = ts.tv_nsec / NSEC_PER_USEC;
}
+static inline bool v4l2_is_colorspace_valid(__u32 colorspace)
+{
+ return colorspace > V4L2_COLORSPACE_DEFAULT &&
+ colorspace <= V4L2_COLORSPACE_DCI_P3;
+}
+
+static inline bool v4l2_is_xfer_func_valid(__u32 xfer_func)
+{
+ return xfer_func > V4L2_XFER_FUNC_DEFAULT &&
+ xfer_func <= V4L2_XFER_FUNC_SMPTE2084;
+}
+
+static inline bool v4l2_is_ycbcr_enc_valid(__u8 ycbcr_enc)
+{
+ return ycbcr_enc > V4L2_YCBCR_ENC_DEFAULT &&
+ ycbcr_enc <= V4L2_YCBCR_ENC_SMPTE240M;
+}
+
+static inline bool v4l2_is_hsv_enc_valid(__u8 hsv_enc)
+{
+ return hsv_enc == V4L2_HSV_ENC_180 || hsv_enc == V4L2_HSV_ENC_256;
+}
+
+static inline bool v4l2_is_quant_valid(__u8 quantization)
+{
+ return quantization == V4L2_QUANTIZATION_FULL_RANGE ||
+ quantization == V4L2_QUANTIZATION_LIM_RANGE;
+}
+
#endif /* V4L2_COMMON_H_ */