[Ffmpeg-cvslog] r5898 - in trunk/libavcodec: dsputil.c dsputil.h i386/dsputil_mmx.c vorbis.c vorbis.h
Fri Aug 4 03:27:18 CEST 2006
On Thu, 3 Aug 2006, Balatoni Denes wrote:
> BTW the funny thing is that AFAICT channel coupling in vorbis is
> redundant, ie. it only makes decoding slower but doesn't improve
> compression - because for stereo (this is when c.c. is used) the left
> and right mdct coefficients are coded with the same VQ codeword , so
> IMHO there would be no difference in compression if instead of angle +
> magnitude, simply the left and right coefficients were coded.
Is that only logically equivalent, or could one actually implemented it by
running coupling on the vqbook instead?
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