Re: Bah! How do I change channels?
Robert Vincent Krakora <[email protected]>
| Newsgroups | gmane.comp.video.video4linux,gmane.linux.drivers.video-input-infrastructure |
|---|---|
| Message-ID | <[email protected]> |
Devin Heitmueller wrote: > On Fri, Jun 26, 2009 at 1:28 PM, Robert > Krakora<[email protected]> wrote: > >> Yes, it is run after mplayer initially tunes it. However, what is the >> difference between mplayer tuning and v4l-ctl tuning? They are both >> submitting the same IOCTLs to the driver to accomplish the same end >> result; or is mplayer probably submitting some additional IOCTLS to >> "wake" the device? >> > > The issue is that the tuner gets powered down when the v4l device is > closed. So, when running mplayer first, and then v4l-ctl is being > used to tune, the file handle is held active by mplayer. But if you > run v4l-ctl first, the v4l-ctl opens the handle, tunes successfully, > and then closes the handle (which powers down the tuner). Then when > running mplayer (or whatever app), the handle gets reopened but the > tuner is not tuned to the target frequency that v4l-ctl set. > > Devin > > Aaahh yes...I think that you have told me that once before...sorry for making you repeat yourself... However, with ivtv-tune I can issue a tune to a channel and then open mplayer with no tuning parameters and that channel is playing... -- Rob Krakora Senior Software Engineer MessageNet Systems 101 East Carmel Dr. Suite 105 Carmel, IN 46032 (317)566-1677 Ext. 206 (317)663-0808 Fax -- video4linux-list mailing list Unsubscribe mailto:[email protected]?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list