Re: Bah! How do I change channels?
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Devin Heitmueller wrote:
Aaahh yes...I think that you have told me that once before...sorry for making you repeat yourself...On Fri, Jun 26, 2009 at 1:28 PM, Robert Krakora<rob.krakora@xxxxxxxxxxxxxxxxxxxxx> 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
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:video4linux-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list
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