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72 lines
1.2 KiB
72 lines
1.2 KiB
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later |
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.. c:namespace:: DTV.video |
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.. _VIDEO_SLOWMOTION: |
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================ |
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VIDEO_SLOWMOTION |
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================ |
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Name |
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---- |
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VIDEO_SLOWMOTION |
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.. attention:: This ioctl is deprecated. |
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Synopsis |
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-------- |
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.. c:macro:: VIDEO_SLOWMOTION |
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``int ioctl(fd, VIDEO_SLOWMOTION, int nFrames)`` |
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Arguments |
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--------- |
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.. flat-table:: |
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:header-rows: 0 |
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:stub-columns: 0 |
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- .. row 1 |
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- int fd |
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- File descriptor returned by a previous call to open(). |
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- .. row 2 |
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- int request |
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- Equals VIDEO_SLOWMOTION for this command. |
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- .. row 3 |
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- int nFrames |
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- The number of times to repeat each frame. |
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Description |
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----------- |
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This ioctl call asks the video device to repeat decoding frames N number |
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of times. This call can only be used if VIDEO_SOURCE_MEMORY is |
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selected. |
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Return Value |
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------------ |
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On success 0 is returned, on error -1 and the ``errno`` variable is set |
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appropriately. The generic error codes are described at the |
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:ref:`Generic Error Codes <gen-errors>` chapter. |
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.. flat-table:: |
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:header-rows: 0 |
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:stub-columns: 0 |
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- .. row 1 |
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- ``EPERM`` |
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- Mode VIDEO_SOURCE_MEMORY not selected.
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