This series consolidates various patches/patch series that add features or document memory-to-memory video codec interfaces. This includes patches adding V4L2_FMT_FLAG_DYN_RESOLUTION, new code adding V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM, new code adding V4L2_DEC_CMD_FLUSH, patches adding V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF (now with documentation) and patches documenting the stateful encoder/decoder and stateless decoder. The stateful encoder documentation is still RFC quality (there are open TODOs, see https://patchwork.kernel.org/cover/10972783/). The stateless decoder documentation is the same as the v5 posted by Alexandre, but with my comments incorporated. Also added are updated pixelformat descriptions. Please review this! I didn't update the MPEG4 format since I'm not sure what to put there. If anyone has access to recent codec standards, then I would really like to have the right references to 'MPEG Picture' and 'Access Unit'. It would be good to just refer to the definition of what a Picture or Access Unit is in the right standards. If there are no more comments, then I want to merge patches 1-7 and probably 8 as well (even though I think that one needs more work). Patches 9-11 require that a stateless decoder driver is also updated to use V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF and V4L2_DEC_CMD_FLUSH. Changes since v1: - Replace bitstream by bytestream as per comment from Nicolas. - V4L2_FMT_FLAG_HAS_BITSTREAM_PARSER was renamed to V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM. Regards, Hans Alexandre Courbot (1): media: docs-rst: Document m2m stateless video decoder interface Hans Verkuil (4): videodev2.h: add V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM pixfmt-compressed.rst: improve H264/HEVC/MPEG1+2/VP8+9 documentation vb2: add V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF videodev2.h: add V4L2_DEC_CMD_FLUSH Maxime Jourdan (5): videodev2.h: add V4L2_FMT_FLAG_DYN_RESOLUTION media: venus: vdec: flag OUTPUT formats with V4L2_FMT_FLAG_DYN_RESOLUTION media: s5p_mfc_dec: set flags for OUTPUT coded formats media: mtk-vcodec: flag OUTPUT formats with V4L2_FMT_FLAG_DYN_RESOLUTION media: vicodec: set flags for vdec/stateful OUTPUT coded formats Tomasz Figa (2): media: docs-rst: Document memory-to-memory video decoder interface media: docs-rst: Document memory-to-memory video encoder interface Documentation/media/uapi/v4l/buffer.rst | 13 + Documentation/media/uapi/v4l/dev-decoder.rst | 1101 +++++++++++++++++ Documentation/media/uapi/v4l/dev-encoder.rst | 608 +++++++++ Documentation/media/uapi/v4l/dev-mem2mem.rst | 10 +- .../media/uapi/v4l/dev-stateless-decoder.rst | 424 +++++++ .../media/uapi/v4l/pixfmt-compressed.rst | 36 +- Documentation/media/uapi/v4l/pixfmt-v4l2.rst | 10 + Documentation/media/uapi/v4l/v4l2.rst | 12 +- .../media/uapi/v4l/vidioc-decoder-cmd.rst | 52 +- .../media/uapi/v4l/vidioc-dqevent.rst | 11 +- .../media/uapi/v4l/vidioc-encoder-cmd.rst | 51 +- .../media/uapi/v4l/vidioc-enum-fmt.rst | 16 + .../media/uapi/v4l/vidioc-reqbufs.rst | 6 + .../media/videodev2.h.rst.exceptions | 3 + .../media/common/videobuf2/videobuf2-v4l2.c | 8 +- .../platform/mtk-vcodec/mtk_vcodec_dec.c | 4 + .../platform/mtk-vcodec/mtk_vcodec_drv.h | 1 + drivers/media/platform/qcom/venus/core.h | 1 + drivers/media/platform/qcom/venus/vdec.c | 11 + .../media/platform/s5p-mfc/s5p_mfc_common.h | 1 + drivers/media/platform/s5p-mfc/s5p_mfc_dec.c | 18 + drivers/media/platform/vicodec/vicodec-core.c | 3 + include/media/v4l2-mem2mem.h | 42 + include/media/videobuf2-core.h | 3 + include/media/videobuf2-v4l2.h | 5 + include/uapi/linux/videodev2.h | 20 +- 26 files changed, 2416 insertions(+), 54 deletions(-) create mode 100644 Documentation/media/uapi/v4l/dev-decoder.rst create mode 100644 Documentation/media/uapi/v4l/dev-encoder.rst create mode 100644 Documentation/media/uapi/v4l/dev-stateless-decoder.rst -- 2.20.1
