7.1.2.26. VIDEO_SET_FORMAT¶
7.1.2.26.2. Synopsis¶
-
int
ioctl(fd, VIDEO_SET_FORMAT, video_format_t format)¶
7.1.2.26.3. 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 ??. |
7.1.2.26.4. 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.
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video_format_t¶
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;
7.1.2.26.5. 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.
EINVAL |
format is not a valid video format. |