diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2011-11-24 09:55:53 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-02-14 13:42:34 -0200 |
| commit | 6b4f12523db46536c750473abdd380763cb0409b (patch) | |
| tree | 5ef2e19da577e29256c77a55141f50df2f6511ba /Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml | |
| parent | a45c0ad51d344dad18c6fb67304b4f87cf0ffd59 (diff) | |
[media] v4l spec: document VIDIOC_(TRY_)DECODER_CMD
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml')
| -rw-r--r-- | Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml b/Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml index af7f3f2a36d..f431b3ba79b 100644 --- a/Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml +++ b/Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml @@ -74,15 +74,16 @@ only used by the STOP command and contains one bit: If the encoding will continue until the end of the current <wordasword>Group Of Pictures</wordasword>, otherwise it will stop immediately.</para> - <para>A <function>read</function>() call sends a START command to -the encoder if it has not been started yet. After a STOP command, + <para>A <function>read</function>() or &VIDIOC-STREAMON; call sends an implicit +START command to the encoder if it has not been started yet. After a STOP command, <function>read</function>() calls will read the remaining data buffered by the driver. When the buffer is empty, <function>read</function>() will return zero and the next <function>read</function>() call will restart the encoder.</para> - <para>A <function>close</function>() call sends an immediate STOP -to the encoder, and all buffered data is discarded.</para> + <para>A <function>close</function>() or &VIDIOC-STREAMOFF; call of a streaming +file descriptor sends an implicit immediate STOP to the encoder, and all buffered +data is discarded.</para> <para>These ioctls are optional, not all drivers may support them. They were introduced in Linux 2.6.21.</para> |