[mythtv] NuppelVideo(Recorder/Player)

Craig Longman craigl at begeek.com
Sun May 18 13:48:25 EDT 2003

Isaac Richards wrote:

>On Sunday 18 May 2003 03:18 am, Craig Longman wrote:
>>2) i noticed that the ReencodeFile() doesn't honour the edit lists.
>> would it be acceptable if it did, as in, if worked on that as a patch,
>>would it be accepted?  perhaps with a flag passed into it, defaulting to
>>false.  in my case, i would like to flag off the parts i don't want, and
>>re-encode it into a smaller file, with the cruft removed.
>It'd be very acceptable if it did, I would actually have a use for it, then =)
ok, i'll try to start working on that i guess, this is something i could 
really use.

i wonder though, i've been thinking about mythmkmovie, and wonder if it 
wouldn't be better to work with that.  i guess i should take a look at 
that project (which already does all the cutlist stuff, iirc).

>>setting the output format to uncompressed though, produces good sound,
>>albeit a much larger file.  i've never used libmp3lame, so i don't know
>>if this is expected (i seem to recall hearing something about non-32000
>>causing problems though).  i'm much less certain about what to do to
>>resolve the problem with mp3 encoded 32000 output though, sounding all
>>fuzzy like that.  maybe something to do with the fact that i'm running a
>>hardware encoder.
>Hmm.. Well, the audio you're getting from the card should be 48000 MP2.  Not 
>sure why it dies but when you resample it to 48kHz, but the pitch shifting is 
>probably because it's just taking the data as 32kHz instead of the 48kHz that 
>it is..  Needs to do some resampling in the transcoder loop to handle that.
k, then maybe i do know whats going on.  i had the default profile set 
up to record (supposedly) mp3 at 32K.  if those settings were being 
ignored (cause the card encoded it itself) but those parameters were 
somehow written out anyway, then the re-encode would be trying to read 
the file in as a 32K MP3, not a 48K MP2 (which would also perhaps 
account for the annoying whine and hiss that i heard).  any quick 
pointers on where i should look to see what gets written out?



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