Thread: WIP: USB audio output - N900 as an "audiophile" portable music player
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joerg_rw is offline joerg_rw
2012-03-27 , 19:11
Posts: 2,222 | Thanked: 12,651 times | Joined on Mar 2010 @ SOL 3
#10
some details you might find useful:
about powersaving of hw-accel: http://tuomas.kulve.fi/blog/2009/11/...on-ogg-vs-mp3/

factoid: all stock media apps use MAFW http://wiki.maemo.org/Documentation/...amework_(MAFW). MAFW has several drawbacks, e.g. no easy way to implement equalizer incl volume control (esp for external audiocard), no gapless playback.

PA and ALSA have a quite strange relationship, when you playback audio to normal PA, data flow is like this:
app -> (PA -- weird plugins - xprot-limiter) -> ALSA card driver
when using 'normal ALSA' (aka "default"):
ALSA -> PA-ALSA-compatibility-plugin -> (PA -- weird plugins - xprot-limiter) -> ALSA card driver HW:0,0

It should be simple to make PA use sth different than hw:0,0 for audio card playback, however that's possibly not what you actually want. It would redirect *everything* to the new audiocard

For automating H-E-N refer to blue_led's scripts in http://talk.maemo.org/showthread.php...60#post1133260 ff. please

just backround: gstreamer: http://tomch.com/wp/?p=116

cheers
jOERG
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Last edited by joerg_rw; 2012-03-28 at 06:34. Reason: added MAFW notes, fixed link
 

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