[mythtv-users] UK DVB-T radio timing problems since 0.25

[John Veness]

On 11/05/2012 21:33, Rick Lane wrote:
> I'm also seeing this. Usually my radio recordings are just extracted to
> mp3 rather than listened to directly on a mythfrontend so I hadn't
> noticed it.
>
> I've played back a couple of recordings via the frontend and see the
> same thing. One recording is 38.00 minutes and the internal player stops
> at 31.38. Another recording of 19.00 exits at 15.53. MHEG being disabled
> makes no difference.
>
> If its relevant, I took a look at the 'playback data' available via the
> playback menu and compared a radio broadcast to a normal one. The normal
> one displays FPS: 25.06±0.01, video: 720x576 at 25.00fps, while the radio
> broadcast displays FPS:30.03±0.01, video: 0x0 at 29.97fps.
>
> Cheers,
> Rick

Hi Rick,

Thanks for confirming. I notice that 31.38 is 25/30ths of 38.00, and 
15.53 is 25/30ths of 19.00.

I've found that I've actually described the problem incorrectly twice 
now, earlier in this thread (it turns out due to confusions with 
skipping and edit points)!

I don't know if you're seeing the same thing, but for me, if I play back 
one of these recordings and don't press any buttons, everything plays 
back fine. It's only if I skip that things go wrong. For example, if I 
skip forward 10 minutes, the OSD will say that I'm 10 minutes into the 
recording, but actually it's more like 12. If I skip forward another 10 
minutes, the OSD will say that I'm 20 minutes into the recording, but 
actually it's more like 24. I think there also might be a problem with 
edit points, but I haven't investigated fully yet.

I intend to file a bug and host a recording file somewhere for devs to 
analyse, but haven't got around to it yet. If a dev is reading this and 
has worked out what's going on, that would be great.

Cheers,

John

-- 
John Veness, MythTV user, UK, DVB-T