[mythtv-users] FF/RW of recorded radio tracks

Nick Rout nick.rout at gmail.com
Thu Nov 15 21:44:59 UTC 2012


On Fri, Nov 16, 2012 at 6:29 AM, Roger Siddons <dizygotheca at ntlworld.com>wrote:

> **
> On Thu, 15 Nov 2012 10:15:11 -0000, Mark Greenwood <fatgerman at gmail.com>
> wrote:
>
> > Using 0.26 I've just discovered that, on a recording of a radio program
> > (BBC 5 Live Sports Extra, recorded from a DVB source), I'm unable to
> > fast-forward. The OSD appears, but the time goes up extremely slowly and
> > when I press 'play' again it returns to where it was when I started FF.
> > Shame, as I have 9 hours of cricket commentary I was hoping to skip
> > through :)
> >
> > I get this in the log when I try FF, repeatedly:
> >
> > Nov 15 10:10:23 revo mythlogserver: mythfrontend[3242]: N CoreContext
> > mythplayer.cpp:2095 (PrebufferEnoughFrames) Player(n): Waited 114ms for
> > video buffers AAAAAAAAAAAAAAAAAAAAAAAAAAAA
> > Nov 15 10:10:25 revo mythlogserver: mythfrontend[3242]: W Decoder
> > ringbuffer.cpp:399 (CalcReadAheadThresh) Enabling buffering
> > optimisations for low bitrate stream.
> >
> > I have 'Interactive TV' enabled in the frontend, and I get the radio
> > station logos on screen due to this. The audio is Mono, MP2. Don't know
> > if this is relevant to the probem.
> >
> > Does this work for anybody else?
> >
>
> I think this is related to http://code.mythtv.org/trac/ticket/10833
>
> The OSD isn't accurate & Myth struggles to FF/REW through frames. I find
> it stalls for 4 or 5 secs before building up speed!
> The 30 second 'skip forward' function (Sticky keys off, default bindings
> to Left/Right keys IIRC) works quite well though.
>
>
Is it possibly because mythtv uses video frame numbers for skipping, and
there is no video in those streams? What does the recordedseek table say
for these recordings?
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