On Wed Nov 20, 2024 at 12:01 PM CET, Hugues Fruchet wrote: > This patch adds the WebP picture decoding kernel uAPI. > > This design is based on currently available VP8 API implementation and > aims to support the development of WebP stateless video codecs > on Linux. > > Signed-off-by: Hugues Fruchet <hugues.fruchet@xxxxxxxxxxx> > --- > Documentation/userspace-api/media/v4l/biblio.rst | 9 +++++++++ > .../userspace-api/media/v4l/pixfmt-compressed.rst | 15 +++++++++++++++ > drivers/media/v4l2-core/v4l2-ioctl.c | 1 + > include/uapi/linux/videodev2.h | 1 + > 4 files changed, 26 insertions(+) > > ... > > diff --git a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst > index 806ed73ac474..e664e70b0619 100644 > --- a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst > +++ b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst > @@ -169,6 +169,21 @@ Compressed Formats > this pixel format. The output buffer must contain the appropriate number > of macroblocks to decode a full corresponding frame to the matching > capture buffer. > + * .. _V4L2-PIX-FMT-WEBP-FRAME: > + > + - ``V4L2_PIX_FMT_WEBP_FRAME`` > + - 'WEBP' > + - WEBP VP8 parsed frame, excluding WEBP RIFF header, keeping only the VP8 > + bistream including the frame header, as extracted from the container. s/bistream/bitstream/ ? > + This format is adapted for stateless video decoders that implement a > + WEBP pipeline with the :ref:`stateless_decoder`. > + Metadata associated with the frame to decode is required to be passed > + through the ``V4L2_CID_STATELESS_VP8_FRAME`` control. > + See the :ref:`associated Codec Control IDs <v4l2-codec-stateless-vp8>`. > + Exactly one output and one capture buffer must be provided for use with > + this pixel format. The output buffer must contain the appropriate number > + of macroblocks to decode a full corresponding frame to the matching > + capture buffer. > > * .. _V4L2-PIX-FMT-VP9: >
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