6.2.2.10. VIDEO_GET_STATUS¶

6.2.2.10.1. Name¶

VIDEO_GET_STATUS

注意

This ioctl is deprecated.

6.2.2.10.2. Synopsis¶

int ioctl(fd, VIDEO_GET_STATUS, struct video_status *status)¶

6.2.2.10.3. Arguments¶

int fd	File descriptor returned by a previous call to open().
int request	Equals VIDEO_GET_STATUS for this command.
struct video_status *status	Returns the current status of the Video Device.

6.2.2.10.4. Description¶

This ioctl call asks the Video Device to return the current status of the device.

video_status¶

struct video_status {
        int                   video_blank;   /* blank video on freeze? */
        video_play_state_t    play_state;    /* current state of playback */
        video_stream_source_t stream_source; /* current source (demux/memory) */
        video_format_t        video_format;  /* current aspect ratio of stream*/
        video_displayformat_t display_format;/* selected cropping mode */
};

6.2.2.10.5. 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.