[mythtv-commits] Ticket #2115: MP3 encoding of captured audio produces static on PowerPC linux machines.

[MythTV]

#2115: MP3 encoding of captured audio produces static on PowerPC linux machines.
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 Reporter:  zdevito at princeton.edu  |       Owner:  ijr 
     Type:  defect                 |      Status:  new 
 Priority:  minor                  |   Milestone:      
Component:  mythtv                 |     Version:  0.19
 Severity:  medium                 |  
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 I have the mythbackend running on a linux ppc machine--a powermac g4
 (digit audio revision) running Ubuntu dapper.  Using a  Plextor PX-TV402U-
 NA I am able to record TV with uncompressed audio fine but using mp3
 encoding produces static. I have tracked the problem to an endian issue in
 NuppelVideoRecorder.  It looks like the audio is read from the sound card
 as 16-bit little endian data; this raw audio data is sent directly to lame
 library for encoding, but the lame library expects data in system byte-
 order. Swapping the bytes in the audio before sending the audio to lame
 fixes the problem.  I have attached a patch that fixes the issue for big
 endian machines.

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Ticket URL: <http://cvs.mythtv.org/trac/ticket/2115>
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