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media: docs: dev-decoder: Add one more reason for dynamic change

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Add bit-depth change as one more reason which could change in the
middle of the stream. For the worst case the stream is 8bit at the
beginning but later in the bit-stream it changes to 10bit. That
change should be propagated to the client so that it can take the
appropriate action. In that case it has to stop the streaming on
the capture queue, re-negotiate the pixel format, allocate new
buffers and start the streaming again.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Stanimir Varbanov 2020-06-16 16:37:35 +02:00 committed by Mauro Carvalho Chehab
parent a32e8adf2f
commit 874b8055bb
1 changed files with 3 additions and 1 deletions
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4
Documentation/userspace-api/media/v4l/dev-decoder.rst
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@ -906,7 +906,9 @@ reflected by corresponding queries):
* visible resolution (selection rectangles),
* the minimum number of buffers needed for decoding.
* the minimum number of buffers needed for decoding,
* bit-depth of the bitstream has been changed.
Whenever that happens, the decoder must proceed as follows: