This ioctl is deprecated. Synopsis

int ioctl(fd, VIDEO_SET_FORMAT, video_format_t format) Arguments

int fd File descriptor returned by a previous call to open().
int request Equals VIDEO_SET_FORMAT for this command.
video_format_t format video format of TV as defined in section ??. Description

This ioctl sets the screen format (aspect ratio) of the connected output device (TV) so that the output of the decoder can be adjusted accordingly.

typedef enum {
        VIDEO_FORMAT_4_3,     /* Select 4:3 format */
        VIDEO_FORMAT_16_9,    /* Select 16:9 format. */
        VIDEO_FORMAT_221_1    /* 2.21:1 */
} video_format_t; 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 format is not a valid video format.