From 2f491463497ad43bc06968a334747c6b6b20fc74 Mon Sep 17 00:00:00 2001 From: Dafna Hirschfeld Date: Thu, 27 Aug 2020 21:46:09 +0200 Subject: 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 Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-common.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'include/media') 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_ */ -- cgit v1.2.3