6.2.2.11. VIDEO_GET_FRAME_COUNT

6.2.2.11.1. Name

VIDEO_GET_FRAME_COUNT

注意

This ioctl is deprecated.

6.2.2.11.2. Synopsis

int ioctl(int fd, VIDEO_GET_FRAME_COUNT, __u64 *pts)

6.2.2.11.3. Arguments

int fd

File descriptor returned by a previous call to open().

int request

Equals VIDEO_GET_FRAME_COUNT for this command.

__u64 *pts

Returns the number of frames displayed since the decoder was started.

6.2.2.11.4. Description

This ioctl is obsolete. Do not use in new drivers. For V4L2 decoders this ioctl has been replaced by the V4L2_CID_MPEG_VIDEO_DEC_FRAME control.

This ioctl call asks the Video Device to return the number of displayed frames since the decoder was started.

6.2.2.11.5. 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.