[mythtv] #5900 and AAC 5.1 audio

[Jean-Yves Avenard]

Hi

2009/6/1 Markus Schulz <msc at antzsystem.de>:
> You're right if i completely disable internal volume control. In my
> previously test i disabled only software mixing (set mixer device from
> "software" to "ALSA:default"). After disabling the internal volume


> completely (like you suggest) it works as expected (2ch and 5.1ch are
> fine and 2ch was upmixed to 5.1).
>
> Perhaps the mixer page should be disabled if we choose the "AC3 audio
> upmixer" on the first page.
Well, if you do that, you loose all the benefit of the AC3 upmixer for
people using analog audio...

I found the problem

is mythtv/libs/libmyth/audiooutputalsa.cpp , line #251 change:
    if (isAC3upmix && !audio_passthru

into:
    if (isAC3upmix && !(audio_passthru || audio_enc)

I'm going to make some more changes to the code itself. Foobum ,
simplified the code by changing all the curstream->codec into ctx

which breaks a few other interesting patches I've found.

Jean-Yves