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5 commits

Author SHA1 Message Date
Hayden Pearce
d73c20933b 10 Band EQ w/Presets
- A 10 Band EQ for Rockbox w/ presets adapted
   from VLC
 - frequency stepping at 32, 64, 125, 250, 500
   1K, 2K, 4K, 8K, 16K

Change-Id: I85ad84d70a534edfc66c6ad9af8a76f022a02ec7
Reviewed-on: http://gerrit.rockbox.org/386
Reviewed-by: Jonathan Gordon <rockbox@jdgordon.info>
2013-01-29 06:53:41 +01:00
Michael Sevakis
362ade3892 Fix FS#12794 - new EQ code does not compile for the Nokia N8x0
The old GCC version currently required (sbox-arm-linux-gcc 3.4.4
release) apparently has trouble with function pointers used as
static array initializers when using indexed initializers + ranges
(ie. [A ... B] = fn).

Change-Id: I494c2b607e4d93a9893264749d0ac257fb54ce3b
2012-12-28 14:12:18 -05:00
Michael Sevakis
56f17c4164 Make rbcodec/dsp includes more specific.
Change-Id: Idb6af40df26f5b8499a40e8b98602261ef227044
2012-04-29 17:31:30 -04:00
Michael Sevakis
c9bcbe202d Fundamentally rewrite much of the audio DSP.
Creates a standard buffer passing, local data passing and messaging
system for processing stages. Stages can be moved to their own source
files to reduce clutter and ease assimilation of new ones. dsp.c
becomes dsp_core.c which supports an engine and framework for effects.

Formats and change notifications are passed along with the buffer so
that they arrive at the correct time at each stage in the chain
regardless of the internal delays of a particular one.

Removes restrictions on the number of samples that can be processed at
a time and it pays attention to destination buffer size restrictions
without having to limit input count, which also allows pcmbuf to
remain fuller and safely set its own buffer limits as it sees fit.
There is no longer a need to query input/output counts given a certain
number of input samples; just give it the sizes of the source and
destination buffers.

Works in harmony with stages that are not deterministic in terms of
sample input/output ratio (like both resamplers but most notably
the timestretch). As a result it fixes quirks with timestretch hanging
up with certain settings and it now operates properly throughout its
full settings range.
Change-Id: Ib206ec78f6f6c79259c5af9009fe021d68be9734
Reviewed-on: http://gerrit.rockbox.org/200
Reviewed-by: Michael Sevakis <jethead71@rockbox.org>
Tested-by: Michael Sevakis <jethead71@rockbox.org>
2012-04-29 10:00:56 +02:00
Sean Bartell
b5716df4cb Build librbcodec with DSP and metadata.
All associated files are moved to /lib/rbcodec.

Change-Id: I572ddd2b8a996aae1e98c081d06b1ed356dce222
2012-03-18 12:00:39 +01:00
Renamed from apps/eq.c (Browse further)