Messages in this thread Patch in this message | | | From | Dmitry Osipenko <> | Subject | [PATCH v2 3/3] media: docs: dev-stateless-decoder: Document frame type flags | Date | Sun, 16 Jan 2022 21:55:56 +0300 |
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Document that frame type flags must be set for the coded buffer. Decoders, like NVIDIA Tegra h264 decoder for example, won't work properly without these flags.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- .../userspace-api/media/v4l/dev-stateless-decoder.rst | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/Documentation/userspace-api/media/v4l/dev-stateless-decoder.rst b/Documentation/userspace-api/media/v4l/dev-stateless-decoder.rst index 4a26646eeec5..845f4481d34f 100644 --- a/Documentation/userspace-api/media/v4l/dev-stateless-decoder.rst +++ b/Documentation/userspace-api/media/v4l/dev-stateless-decoder.rst @@ -271,6 +271,9 @@ A typical frame would thus be decoded using the following sequence: we are not sure that the current decode request is the last one needed to produce a fully decoded frame, then ``V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF`` must also be set. + ``V4L2_BUF_FLAG_KEYFRAME``, ``V4L2_BUF_FLAG_PFRAME`` and + ``V4L2_BUF_FLAG_BFRAME`` must be set if relevant to the coded + format. ``request_fd`` must be set to the file descriptor of the decoding request. -- 2.33.1
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