The new supported formats are V4L2_PIX_FMT_GREY, V4L2_PIX_FMT_ARGB32, V4L2_PIX_FMT_ABGR32. The returned encoded format is chaned to support various numbers of planes instead of assuming 3 planes. The first patch adds new fields to structs. The second patch adds support for V4L2_PIX_FMT_GREY. The third patch adds support for V4L2_PIX_FMT_ARGB32, V4L2_PIX_FMT_ABGR32. The code used to test this patch is https://github.com/kamomil/outreachy The script I used to test greyscale support: https://github.com/kamomil/outreachy/blob/master/greyscale-full-example.sh The script I used to test argb/abgr: https://github.com/kamomil/outreachy/blob/master/argb-and-abgr-full-example.sh Changes from v3: patch 1,3: - no change patch 2: - replace the 2-bit flag FWHT_FL_COMPONENTS_NUM_BIT[01] with GENMASK - add TODO comment - handle the case where the encoded stream is different format than the decoded - allocate maximal space for the V4L2_PIX_FMT_FWHT format with the test 'flags & FWHT_FL_COMPONENTS_NUM_BIT[01]' Dafna Hirschfeld (3): media: vicodec: prepare support for various number of planes media: vicodec: Add support of greyscale format media: vicodec: Add support for 4 planes formats drivers/media/platform/vicodec/codec-fwht.c | 73 +++++++---- drivers/media/platform/vicodec/codec-fwht.h | 15 ++- .../media/platform/vicodec/codec-v4l2-fwht.c | 123 +++++++++++++----- .../media/platform/vicodec/codec-v4l2-fwht.h | 3 +- drivers/media/platform/vicodec/vicodec-core.c | 35 ++++- 5 files changed, 182 insertions(+), 67 deletions(-) -- 2.17.1
