[mythtv] Ticket #12303: mythtranscode destroys audio

John Pilkington J.Pilk at tesco.net
Sat Nov 15 12:52:17 UTC 2014

On 15/11/14 11:48, Raymond Wagner wrote:
> On 11/14/2014 7:25 AM, John Pilkington wrote:
>> On 14/11/14 12:26, MythTV" wrote:
>>> #12303: mythtranscode destroys audio
>>>   Would it help to have the two files?
>>>   34M     before.mpg
>>>   76M     after.nuv
>> It's unlikely to do any harm to put them in a drop-box somewhere...
>> ... but isn't this supposed to be about compression?
> If you want to actually perform recompression of your files, instead of
> simply performing a lossless cut of MPEG2 recordings, you shouldn't use
> mythtranscode.  You seem to be recompressing to RTJPEG for some reason,
> but even properly configured, mythtranscode is limited to MPEG4ASP,
> which is only a modest increase in compressibility over MPEG2, and
> you're stuck in a NUV container.

Yes.  I started to add a new comment to the ticket, but decided not to. 
  It isn't clear _why_ either of the two? people with the problem wish 
to transcode, but it's my feeling that most of the transcode options now 
offered in mythtvsetup are outdated.  Browsing the wiki for 'scripts' or 
'user jobs' is more likely to dig up something useful, although it might 
not be up to date.

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