[mythtv-users] Mytharchive video/audio out of sync

[Paul Harrison]

Andrew Chuah wrote:
> Hi,
>
> I've figured out what was wrong with mine... it seems that
> mytharchivehelper is getting the wrong length?
>
> localhost mythplugins # mytharchivehelper -i
> "/myth/tv/1058_20060514180000.nuv" /backup/tmp/work/1/streaminfo.xml 0
> 2006-10-02 22:03:42.357 Opening /myth/tv/1058_20060514180000.nuv
> 0: start_time: 0.000 duration: 4.490
> 1: start_time: 0.000 duration: 4.490
> stream: start_time: 0.000 duration: 4489.516 bitrate=1411 kb/s
> Input #0, nuv, from '/myth/tv/1058_20060514180000.nuv':
>   Duration: 01:14:49.5, start: 0.000000, bitrate: 1411 kb/s
>   Stream #0.0: Video: mpeg4, yuv420p, 480x480, 29.92 fps(r)
>   Stream #0.1: Audio: mp3, 32000 Hz, stereo, 1411 kb/s
> 2006-10-02 22:03:42.363 duration = 4489
>
> The show is a 1 hour show (MythTV shows 58 mins), why is
> mytharchivehelper showing it as 1 hour 15 mins?
>
> BTW, I just reloaded SVN and the problem still exists. I'll try to
> look at the source code tomorrow and see if I can understand it... :)
>
> -andrew
>   

I don't think getting the wrong length is the problem. mytharchivehelper 
actually uses three different methods to get the recording length 
depending on the type of recording, how accurate the length needs to be 
and how quickly we need to get the length (you don't want to wait around 
2 or 3 minutes when using the UI while the length is calculated). The 
last parameter determines what method to use 0, 1 or 2. See 
mytharchivehelper --help for a brief description of what each one does. 
In any case I don't think the calculated length has anything to do with 
audio sync .... but I could be wrong it's not unknown ;-). Looks like 
Geoff is back on the seen maybe we should bend his ear on this one.

Paul H.