This series is continuation of work from https://patchwork.linuxtv.org/cover/58186/ It picks up unmerged patches (9-12) from aforementioned series and adds support for decoding multi-slice H264 frames along with support for V4L2_DEC_CMD_FLUSH and V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF in Cedrus driver. Code was tested by modified ffmpeg, which can be found here: https://github.com/jernejsk/FFmpeg, branch mainline-test It has to be configured with at least following options: --enable-v4l2-request --enable-libudev --enable-libdrm Samples used for testing: http://jernej.libreelec.tv/videos/h264/BA1_FT_C.mp4 http://jernej.libreelec.tv/videos/h264/h264.mp4 Command line used for testing: ffmpeg -hwaccel drm -hwaccel_device /dev/dri/card0 -i h264.mp4 -pix_fmt bgra -f fbdev /dev/fb0 Please note that V4L2_DEC_CMD_FLUSH was not tested because I'm not sure how. ffmpeg follows exactly which slice is last in frame and sets hold flag accordingly. Improper usage of hold flag would corrupt ffmpeg assumptions and it would probably crash. Any ideas how to test this are welcome! Thanks to Jonas for adjusting ffmpeg. Please let me know what you think. Best regards, Jernej Alexandre Courbot (1): media: docs-rst: Document m2m stateless video decoder interface Hans Verkuil (2): vb2: add V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF videodev2.h: add V4L2_DEC_CMD_FLUSH Jernej Skrabec (4): media: cedrus: Detect first slice of a frame media: cedrus: h264: Support multiple slices per frame media: cedrus: Add support for holding capture buffer media: cedrus: Add support for V4L2_DEC_CMD_FLUSH Tomasz Figa (1): media: docs-rst: Document memory-to-memory video encoder interface Documentation/media/uapi/v4l/buffer.rst | 13 + Documentation/media/uapi/v4l/dev-encoder.rst | 608 ++++++++++++++++++ Documentation/media/uapi/v4l/dev-mem2mem.rst | 2 + .../media/uapi/v4l/dev-stateless-decoder.rst | 424 ++++++++++++ Documentation/media/uapi/v4l/pixfmt-v4l2.rst | 5 + Documentation/media/uapi/v4l/v4l2.rst | 2 + .../media/uapi/v4l/vidioc-decoder-cmd.rst | 11 +- .../media/uapi/v4l/vidioc-encoder-cmd.rst | 51 +- .../media/uapi/v4l/vidioc-reqbufs.rst | 6 + .../media/videodev2.h.rst.exceptions | 1 + .../media/common/videobuf2/videobuf2-v4l2.c | 8 +- drivers/staging/media/sunxi/cedrus/cedrus.h | 1 + .../staging/media/sunxi/cedrus/cedrus_dec.c | 11 + .../staging/media/sunxi/cedrus/cedrus_h264.c | 11 +- .../staging/media/sunxi/cedrus/cedrus_hw.c | 8 +- .../staging/media/sunxi/cedrus/cedrus_video.c | 35 + include/media/v4l2-mem2mem.h | 42 ++ include/media/videobuf2-core.h | 3 + include/media/videobuf2-v4l2.h | 5 + include/uapi/linux/videodev2.h | 14 +- 20 files changed, 1230 insertions(+), 31 deletions(-) create mode 100644 Documentation/media/uapi/v4l/dev-encoder.rst create mode 100644 Documentation/media/uapi/v4l/dev-stateless-decoder.rst -- 2.22.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
