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Diffstat (limited to 'Documentation/media/uapi/dvb/video-slowmotion.rst')
| -rw-r--r-- | Documentation/media/uapi/dvb/video-slowmotion.rst | 74 |
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diff --git a/Documentation/media/uapi/dvb/video-slowmotion.rst b/Documentation/media/uapi/dvb/video-slowmotion.rst new file mode 100644 index 000000000..905712844 --- /dev/null +++ b/Documentation/media/uapi/dvb/video-slowmotion.rst @@ -0,0 +1,74 @@ +.. -*- coding: utf-8; mode: rst -*- + +.. _VIDEO_SLOWMOTION: + +================ +VIDEO_SLOWMOTION +================ + +Name +---- + +VIDEO_SLOWMOTION + + +Synopsis +-------- + +.. cpp:function:: int ioctl(fd, int request = VIDEO_SLOWMOTION, int nFrames) + + +Arguments +--------- + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + + + - .. row 1 + + - int fd + + - File descriptor returned by a previous call to open(). + + - .. row 2 + + - int request + + - Equals VIDEO_SLOWMOTION for this command. + + - .. row 3 + + - int nFrames + + - The number of times to repeat each frame. + + +Description +----------- + +This ioctl call asks the video device to repeat decoding frames N number +of times. This call can only be used if VIDEO_SOURCE_MEMORY is +selected. + + +Return Value +------------ + +On success 0 is returned, on error -1 and the ``errno`` variable is set +appropriately. The generic error codes are described at the +:ref:`Generic Error Codes <gen-errors>` chapter. + + + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + + + - .. row 1 + + - ``EPERM`` + + - Mode VIDEO_SOURCE_MEMORY not selected. |