[gstreamer-bugs] [Bug 377280] [cdiocddasrc] issue if drive endianness != machine endianness

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-good | Ver: 0.10.4





------- Comment #22 from rocky at panix.com  2006-12-12 11:23 UTC -------
Are you sure that the cdda2wav code cited is the *only* part that determines
endianness? cdparanoia has code like this but it has other more general code as
well.

What cdparanoia also does is read the beginning audio tracks (recall that this
is *only* a problem with Philips Red book or CD audio). From that it looks for
the least "noise", trying both byte-order interpretations. Noise is determined
by wild oscillations of the data -- if one were view the sound on an
oscilloscope, the sound noise would have lots of short large spikes; "normal"
sound oscillations would be smaller and smoother. And complete silence would be
more or less a straight horizontal line. In libcdio the code for this is in
lib/cdda_interface/common_interface.c in routine data_bigendianp. But in
reality this code comes directly from cdparanoia. 


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