6.2.2.20. VIDEO_FAST_FORWARD¶
6.2.2.20.2. Synopsis¶
-
int
ioctl(fd, VIDEO_FAST_FORWARD, int nFrames)¶
6.2.2.20.3. Arguments¶
| int fd | File descriptor returned by a previous call to open(). |
| int request | Equals VIDEO_FAST_FORWARD for this command. |
| int nFrames | The number of frames to skip. |
6.2.2.20.4. Description¶
This ioctl call asks the Video Device to skip decoding of N number of I-frames. This call can only be used if VIDEO_SOURCE_MEMORY is selected.
6.2.2.20.5. 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
Generic Error Codes chapter.
EPERM |
Mode VIDEO_SOURCE_MEMORY not selected. |