1.. Permission is granted to copy, distribute and/or modify this 2.. document under the terms of the GNU Free Documentation License, 3.. Version 1.1 or any later version published by the Free Software 4.. Foundation, with no Invariant Sections, no Front-Cover Texts 5.. and no Back-Cover Texts. A copy of the license is included at 6.. Documentation/media/uapi/fdl-appendix.rst. 7.. 8.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections 9 10.. _VIDEO_FAST_FORWARD: 11 12================== 13VIDEO_FAST_FORWARD 14================== 15 16Name 17---- 18 19VIDEO_FAST_FORWARD 20 21.. attention:: This ioctl is deprecated. 22 23Synopsis 24-------- 25 26.. c:function:: int ioctl(fd, VIDEO_FAST_FORWARD, int nFrames) 27 :name: VIDEO_FAST_FORWARD 28 29 30Arguments 31--------- 32 33.. flat-table:: 34 :header-rows: 0 35 :stub-columns: 0 36 37 38 - .. row 1 39 40 - int fd 41 42 - File descriptor returned by a previous call to open(). 43 44 - .. row 2 45 46 - int request 47 48 - Equals VIDEO_FAST_FORWARD for this command. 49 50 - .. row 3 51 52 - int nFrames 53 54 - The number of frames to skip. 55 56 57Description 58----------- 59 60This ioctl call asks the Video Device to skip decoding of N number of 61I-frames. This call can only be used if VIDEO_SOURCE_MEMORY is 62selected. 63 64 65Return Value 66------------ 67 68On success 0 is returned, on error -1 and the ``errno`` variable is set 69appropriately. The generic error codes are described at the 70:ref:`Generic Error Codes <gen-errors>` chapter. 71 72 73 74.. flat-table:: 75 :header-rows: 0 76 :stub-columns: 0 77 78 79 - .. row 1 80 81 - ``EPERM`` 82 83 - Mode VIDEO_SOURCE_MEMORY not selected. 84