This patchset is the userspace support for the CSC API RFC v5: https://patchwork.kernel.org/project/linux-media/list/?series=312673 Patches Summary: ================ patch 1 - allows userspace to set the colorspace, quantization, {ycbcr/hsv}_enc and xfer_func fields in the command 'v4l2-ctl --set-fmt-video ..' it also adds the new enumeration flags to the compliance tests. patch 2 - adds the new enumeration flags V4L2_FMT_FLAG_CSC* to the function that prints the string description of the flags. The array fmtdesc_def is replaced by a macro FMTDESC_DEF(enc_type) since the flags V4L2_FMT_FLAG_CSC_YCBCR_ENC,V4L2_FMT_FLAG_CSC_HSV_ENC, have identical value and the string should change according to whether the pixelformat is HSV or not. patches 4, 3 - are similar to patches 1, 2 but for subdevices. So patch 3 adds support for the CSC API for subdevices and patch 4 adds the new enumeration flags V4L2_SUBDEV_MBUS_CODE_CSC* to the framework that prints the related string description Testing: ======= I added a python script to run all possible combinations of CSC settings on vivid: https://gitlab.collabora.com/dafna/v4l-utils/-/blob/rfc-v5-jul-3-abend/contrib/test/vivid_test_csc.py NOTE that the scripts might run for long time (1-2) hours since it iterates all possible combinations of csc conversions in vivid. The commands to run the script: git clone --single-branch --branch rfc-v5-jul-3-abend https://gitlab.collabora.com/dafna/v4l-utils.git # <compile v4l-utils> cd v4l-utils/contrib/test/ modprobe vivid python3 vivid_test_csc.py Also added test for rkisp1: https://gitlab.collabora.com/dafna/v4l-utils/-/blob/rfc-v5-jul-3-abend/contrib/test/rkisp1-unit-tests.sh To run the test: git clone --single-branch --branch rfc-v5-jul-3-abend https://gitlab.collabora.com/dafna/v4l-utils.git # <compile v4l-utils> cd v4l-utils/contrib/test/ ./rkisp1-unit-tests.sh changes since v4: - adding support to CSC of the colorspace and xfer_func fields in video devices and subdevices. Dafna Hirschfeld (4): v4l2-ctl: vidcap: Add support for the CSC API v4l2: common: add the flags V4L2_FMT_FLAG_CSC* to the list that maps flags to str v4l2-ctl: subdev: Add support for the CSC API in the subdevices v4l2-ctl: subdev: Add the flags to the list of supported mbus formats utils/common/v4l2-info.cpp | 47 +++++++++++++++++---- utils/common/v4l2-info.h | 6 ++- utils/v4l2-compliance/v4l2-test-formats.cpp | 4 +- utils/v4l2-ctl/v4l2-ctl-subdev.cpp | 26 +++++++++--- utils/v4l2-ctl/v4l2-ctl-vidcap.cpp | 39 +++++++++++++++-- utils/v4l2-ctl/v4l2-ctl.cpp | 16 +++++-- 6 files changed, 114 insertions(+), 24 deletions(-) -- 2.17.1
