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Diffstat (limited to 'Documentation/media/uapi/dvb/video-get-frame-rate.rst')
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diff --git a/Documentation/media/uapi/dvb/video-get-frame-rate.rst b/Documentation/media/uapi/dvb/video-get-frame-rate.rst new file mode 100644 index 000000000..131def962 --- /dev/null +++ b/Documentation/media/uapi/dvb/video-get-frame-rate.rst @@ -0,0 +1,59 @@ +.. -*- coding: utf-8; mode: rst -*- + +.. _VIDEO_GET_FRAME_RATE: + +==================== +VIDEO_GET_FRAME_RATE +==================== + +Name +---- + +VIDEO_GET_FRAME_RATE + + +Synopsis +-------- + +.. cpp:function:: int ioctl(int fd, int request = VIDEO_GET_FRAME_RATE, unsigned int *rate) + + +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_GET_FRAME_RATE for this command. + + - .. row 3 + + - unsigned int \*rate + + - Returns the framerate in number of frames per 1000 seconds. + + +Description +----------- + +This ioctl call asks the Video Device to return the current framerate. + + +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. |