This patchset adds support for Hantro G1 VP8 stateless decoding, as available on RK3288 SoC. In order to support VP8 stateless decoding, a new pixel format is introduced V4L2_PIX_FMT_VP8_FRAME, to be used with a new control V4L2_CID_MPEG_VIDEO_VP8_FRAME_HEADER. Changes in v4: * Zero padding fields, and document this as a specification. * Minor cosmetic changes. Changes in v3: * Validate num_dct_parts field, as suggested by Philipp. This fixes the kernel oops reported by Philipp. * Add documentation for num_dct_parts constraint. * Renamed macroblock_bit_offset to first_part_header_bits and fixed its documentation. Changes in v2: * Verified that all the fields in the uAPI come from the spec [1]. * Structures and fields have 8-bytes alignment and sizes, as suggested by Boris. * Moved 1-bit fields to a bit in the appropriate flags fields. * Dropped dequant_factors[4][3][2], I really couldn't find this field or anything similar in the spec. It's not mentioned anywhere in Chromium or FFMPEG, so I decided to drop it. [1] https://www.rfc-editor.org/rfc/rfc6386.html Ezequiel Garcia (2): media: v4l2-ctrl: Move compound control validation media: v4l2-ctrl: Validate VP8 stateless decoder controls Pawel Osciak (1): media: uapi: Add VP8 stateless decoder API ZhiChao Yu (1): media: hantro: Add support for VP8 decoding on rk3288 Documentation/media/uapi/v4l/biblio.rst | 10 + .../media/uapi/v4l/ext-ctrls-codec.rst | 323 +++++++++++ .../media/uapi/v4l/pixfmt-compressed.rst | 20 + drivers/media/v4l2-core/v4l2-ctrls.c | 157 ++++-- drivers/media/v4l2-core/v4l2-ioctl.c | 1 + drivers/staging/media/hantro/Makefile | 4 +- drivers/staging/media/hantro/hantro.h | 27 + drivers/staging/media/hantro/hantro_drv.c | 6 + .../staging/media/hantro/hantro_g1_vp8_dec.c | 526 ++++++++++++++++++ drivers/staging/media/hantro/hantro_hw.h | 17 + drivers/staging/media/hantro/hantro_v4l2.c | 1 + drivers/staging/media/hantro/hantro_vp8.c | 188 +++++++ drivers/staging/media/hantro/rk3288_vpu_hw.c | 22 +- include/media/v4l2-ctrls.h | 3 + include/media/vp8-ctrls.h | 110 ++++ 15 files changed, 1356 insertions(+), 59 deletions(-) create mode 100644 drivers/staging/media/hantro/hantro_g1_vp8_dec.c create mode 100644 drivers/staging/media/hantro/hantro_vp8.c create mode 100644 include/media/vp8-ctrls.h -- 2.20.1
