[mythtv] sound during fast forward/rewind on pvr350 when using it for tv-out
Joseph A. Caputo
jcaputo1 at comcast.net
Thu Mar 18 12:45:48 EST 2004
On Thursday 18 March 2004 11:57, Simon Kenyon wrote:
> David Engel wrote:
> >On Thu, Mar 18, 2004 at 01:49:44PM +0000, Simon Kenyon wrote:
> >>with ivtv-fb. when i fast forward to rewind then it plays brief
> >>sequences of video as it goes. unfortunately, it also plays brief
> >>snatches of audio as well, which IMHO is annoying. this does not
> >It's a known problem. I don't know when it will get fixed since it
> >requires a significant change to the way Myth does ff/rew.
> oh well. i'll have to live with it so
> thanks for the quick answer
You could use the 'trick play' feature instead of bona-fide ff/rew.
+ gives 'smooth' rather than 'jumpy' ff/rew
- requires more CPU, as it actually decodes every frame, as opposed to
skipping them like ff/rew does
- max. speed is lower than ff/rew
That said, I think ff/rew should be able to be re-worked so that it
doesn't play sound. Trick play obviously does it.
This has been an item on my list for a long time. I wrote the initial
implementation of the current ff/rew behavior, and at the time there
was no clean way to mute the sound during ff/rew without modifying
NuppelVideoPlayer, which Isaac didn't want me to do at the time. Later
the 'mute' functionality was added, and I thought I might be able to
utilize that, but it would have been a kludge, and since the mute
function doesn't maintain state, there was no elegant way to determine
if the sound should remain muted or not when exiting ff/rew. Then the
trick play features were added, and I seem to recall ended up touching
NuppelVideoPlayer to do things... I guess the author was able to make a
better argument than I did at the time.
Maybe I'll revisit this, but actually it's not a priority right now; I
think I'm going to remap my ff/rew keys to do trick play. Anyone else
is welcome to take a stab at it...
More information about the mythtv-dev