[vorbis-dev]Newbie question
Rob D
rddone at att.net
Mon Jan 20 19:10:59 PST 2003
I found a way to hack in a volume.
I made ov_get_vol and ov_set_vol that takes a floating value, and sets a
float value used to scale the results from the 5 vorbis_ftoi calls in
vorbisfile.c
The original multiplied the results from the vorbis_ftoi by 128 or 32768
depending on word size. I just replaced the hardcoded value with the
resulting value in the set_vol routine.
This should be a very minor performance impact, multiplying by a variable as
opposed to a hardcoded value. Maybe no impact, depending on compiler.
I just stored the variable as a global in vorbisfile.c, as I am not familiar
enough with the modules yet to know exactly where it should be declared.
The bottom line is that it was a successful hack, and I believe the idea
behind it is sound enough to integrate into future releases, but not exactly
as I have implemeted.
Rob D
<p>--- >8 ----
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