[v2,0/3] Add V4L stateless video decoder API support to NVIDIA Tegra driver

Message

Dmitry Osipenko Jan. 16, 2022, 6:55 p.m. UTC

Support V4L stateless video decoder API by NVIDIA Tegra decoder driver.
Tested using GStreamer [1] and libvdpau-tegra [2].

[1] https://github.com/grate-driver/gstreamer/commit/b8509bdbb69b534e61419ea1798f32f9ad2f3597
[2] https://github.com/grate-driver/libvdpau-tegra/commit/f822e95911e5e0c39f8ba19f843ddc1e0138d5ce

Changelog:

v2: - Made V4L2_BUF_FLAG_*FRAME flags mandatory [3] and dropped reading
      of raw bitstream from the driver code, as was suggested by
      Nicolas Dufresne.

      [3] https://github.com/grate-driver/gstreamer/commit/aee292f0f2e84b7654a314dd7e63f916888ffaa5

    - Ran v4l2-compliance [4] and fluster [5][6] tests, like was suggested by
      Nicolas Dufresne. Fixed minor v4l2-compliance errors that were related
      to a partial initialization of the coded format and were harmless in
      practice, but made compliance checker unhappy.

      [4] https://gist.github.com/digetx/5d6bcdab633488f1dcc7c141ab90d30e
      [5] https://gist.github.com/digetx/b06c5d779e9d25afa41d9f46946fe399
      [6] https://gist.github.com/digetx/ac4198bc340e5065aa8ec3288bb21356

Dmitry Osipenko (3):
  media: staging: tegra-vde: Factor out H.264 code
  media: staging: tegra-vde: Support V4L stateless video decoder API
  media: docs: dev-stateless-decoder: Document frame type flags

 .../media/v4l/dev-stateless-decoder.rst       |    3 +
 drivers/staging/media/tegra-vde/Kconfig       |    7 +
 drivers/staging/media/tegra-vde/Makefile      |    2 +-
 drivers/staging/media/tegra-vde/h264.c        |  940 +++++++++++++++
 drivers/staging/media/tegra-vde/v4l2.c        | 1018 +++++++++++++++++
 drivers/staging/media/tegra-vde/vde.c         |  700 ++----------
 drivers/staging/media/tegra-vde/vde.h         |  127 ++
 7 files changed, 2181 insertions(+), 616 deletions(-)
 create mode 100644 drivers/staging/media/tegra-vde/h264.c
 create mode 100644 drivers/staging/media/tegra-vde/v4l2.c