| int fd | File descriptor returned by a previous call to open(). |
| __u64 *pts | Returns the 33-bit timestamp as defined in ITU T-REC-H.222.0 / ISO/IEC 13818-1. The PTS should belong to the currently played frame if possible, but may also be a value close to it like the PTS of the last decoded frame or the last PTS extracted by the PES parser. |
This ioctl is obsolete. Do not use in new drivers. If you need this functionality, then please contact the linux-media mailing list (https://linuxtv.org/lists.php).
This ioctl call asks the Audio Device to return the current PTS timestamp.
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.