int ioctl(fd, int request = VIDEO_SET_SYSTEM, video_system_t system) Arguments

int fd File descriptor returned by a previous call to open().
int request Equals VIDEO_SET_FORMAT for this command.
video_system_t system video system of TV output. Description

This ioctl sets the television output format. The format (see section ??) may vary from the color format of the displayed MPEG stream. If the hardware is not able to display the requested format the call will return an error. 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.

EINVAL system is not a valid or supported video system.