This patchset adds support for the BT.709 encoding and inverse encoding matrices to the ipu_ic task init functions. The imx-media driver can now support both BT.601 and BT.709 encoding. History: v6: - tweak some of the coefficients slightly, they were not getting rounded correctly. - move the introduction of calc_csc_coeffs() to an earlier patch for easier patch readability. v5: - the hard-coded encode coefficients now convert only between full-range quantization. A new function is added to transform the coefficients to limited-range at input or output. - add a bug fix patch for saturation bit in TPMEM register. - add a patch to fully describe input and output colorspace to the IC task init functions. - add imx_media_try_colorimetry(), called at all sink/source pad try_fmt. v4: - fix a compile error in init_csc(), reported by Tim Harvey. v3: - fix some inconsistent From: and Signed-off-by:'s. No functional changes. v2: - rename ic_csc_rgb2rgb matrix to ic_csc_identity. - only return "Unsupported YCbCr encoding" error if inf != outf, since if inf == outf, the identity matrix can be used. Reported by Tim Harvey. - move ic_route check above default colorimetry checks, and fill default colorspace for ic_route, otherwise it's not possible to set BT.709 encoding for ic routes. Steve Longerbeam (7): gpu: ipu-v3: ipu-ic: Fix saturation bit offset in TPMEM gpu: ipu-v3: ipu-ic: Fix BT.601 coefficients gpu: ipu-v3: ipu-ic: Fully describe colorspace conversions gpu: ipu-v3: ipu-ic: Add support for Rec.709 encoding gpu: ipu-v3: ipu-ic: Add support for limited range encoding media: imx: Try colorimetry at both sink and source pads media: imx: Allow BT.709 encoding for IC routes drivers/gpu/ipu-v3/ipu-ic.c | 487 +++++++++++++++++--- drivers/gpu/ipu-v3/ipu-image-convert.c | 27 +- drivers/staging/media/imx/imx-ic-prp.c | 6 +- drivers/staging/media/imx/imx-ic-prpencvf.c | 30 +- drivers/staging/media/imx/imx-media-csi.c | 19 +- drivers/staging/media/imx/imx-media-utils.c | 70 +-- drivers/staging/media/imx/imx-media-vdic.c | 5 +- drivers/staging/media/imx/imx-media.h | 5 +- drivers/staging/media/imx/imx7-media-csi.c | 8 +- include/video/imx-ipu-v3.h | 37 +- 10 files changed, 547 insertions(+), 147 deletions(-) -- 2.17.1
