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<title>rockbox/lib/rbcodec/codecs/libwma, branch quake5</title>
<subtitle>My Rockbox tree</subtitle>
<link rel='alternate' type='text/html' href='https://www.franklinwei.com/cgit/rockbox/'/>
<entry>
<title>iPod Classic: disable IRAM1</title>
<updated>2018-07-30T22:50:27+00:00</updated>
<author>
<name>Cástor Muñoz</name>
<email>cmvidal@gmail.com</email>
</author>
<published>2017-01-13T19:51:07+00:00</published>
<link rel='alternate' type='text/html' href='https://www.franklinwei.com/cgit/rockbox/commit/?id=744274220833e017f3cc3f1b61abd0fc7c3885ec'/>
<id>744274220833e017f3cc3f1b61abd0fc7c3885ec</id>
<content type='text'>
On Classic, IRAM1 (second 128Kb of a total of 256KB available IRAM) is
slower than DRAM. Codecs that actually are using regions of IRAM1 runs
faster when DRAM is used, so IRAM1 is disabled and only IRAM0 remains
enabled: 48KB for core and 80KB for codecs/plugins.

The next test_codec results shows how decode time is decreased:

file           boosted     unboosted
*.ra           ~1.5%       ~0.5%
*.mpc          ~21%        ~4.5%
*.ogg          ~0.5%       ~0%
nero_he*.m4a   ~8%         ~1%
nero*.m4a      ~25%        ~7%
wmapro*.wma    ~4.5%       ~0%
wma*.wma       ~25%        ~7%

In addition there is a small power save when IRAM1 HW is disabled.

Change-Id: I102adee11458e82037f23076d5d5956e23235de8
</content>
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<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
On Classic, IRAM1 (second 128Kb of a total of 256KB available IRAM) is
slower than DRAM. Codecs that actually are using regions of IRAM1 runs
faster when DRAM is used, so IRAM1 is disabled and only IRAM0 remains
enabled: 48KB for core and 80KB for codecs/plugins.

The next test_codec results shows how decode time is decreased:

file           boosted     unboosted
*.ra           ~1.5%       ~0.5%
*.mpc          ~21%        ~4.5%
*.ogg          ~0.5%       ~0%
nero_he*.m4a   ~8%         ~1%
nero*.m4a      ~25%        ~7%
wmapro*.wma    ~4.5%       ~0%
wma*.wma       ~25%        ~7%

In addition there is a small power save when IRAM1 HW is disabled.

Change-Id: I102adee11458e82037f23076d5d5956e23235de8
</pre>
</div>
</content>
</entry>
<entry>
<title>Fix race conditions in parallel build.</title>
<updated>2016-05-28T15:41:32+00:00</updated>
<author>
<name>Frank Gevaerts</name>
<email>frank@gevaerts.be</email>
</author>
<published>2016-05-28T15:40:22+00:00</published>
<link rel='alternate' type='text/html' href='https://www.franklinwei.com/cgit/rockbox/commit/?id=c926a5269e4af6119d54711becc72d7e94d9d5a9'/>
<id>c926a5269e4af6119d54711becc72d7e94d9d5a9</id>
<content type='text'>
ffmpeg_bitstream.c is included in libcodec, so there doesn't seem to
be any reason for individual codecs to also compile it (and clobber
any previous copy while they're at it, leading to broken builds)

Change-Id: I2bedc277ab109f44a6e8feb3d12ed01a720e00a6
</content>
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<pre>
ffmpeg_bitstream.c is included in libcodec, so there doesn't seem to
be any reason for individual codecs to also compile it (and clobber
any previous copy while they're at it, leading to broken builds)

Change-Id: I2bedc277ab109f44a6e8feb3d12ed01a720e00a6
</pre>
</div>
</content>
</entry>
<entry>
<title>Fix audio corruption when sequentially playing low bitrate WMA files</title>
<updated>2012-05-01T06:01:06+00:00</updated>
<author>
<name>Michael Giacomelli</name>
<email>giac2000@hotmail.com</email>
</author>
<published>2012-05-01T06:01:06+00:00</published>
<link rel='alternate' type='text/html' href='https://www.franklinwei.com/cgit/rockbox/commit/?id=0dd200b33a624131190b0cffffb00a1cf4f7fd41'/>
<id>0dd200b33a624131190b0cffffb00a1cf4f7fd41</id>
<content type='text'>
for real this time.  Also, use English grammar.

Change-Id: I1f2156afa313280deb02b58a191511699671a761
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<pre>
for real this time.  Also, use English grammar.

Change-Id: I1f2156afa313280deb02b58a191511699671a761
</pre>
</div>
</content>
</entry>
<entry>
<title>Fix corrupt when repeatidly playing very low bitrate WMA files.</title>
<updated>2012-05-01T03:42:38+00:00</updated>
<author>
<name>Michael Giacomelli</name>
<email>giac2000@hotmail.com</email>
</author>
<published>2012-05-01T03:28:57+00:00</published>
<link rel='alternate' type='text/html' href='https://www.franklinwei.com/cgit/rockbox/commit/?id=87d3dde15a1f0af6eaac21107d74aa240515fd0c'/>
<id>87d3dde15a1f0af6eaac21107d74aa240515fd0c</id>
<content type='text'>
The LSP feature in WMA requires that the noise table values be
doubled verses when it is not used.  Unfortunately, the previous
code would double the same values every time a LSP file was
decoded without first resetting them to their original values.
Change the code to check if the values are already doubled, and
then double/halve them as needed.  This is still a bit ugly,
in the future consider using the built in rockbox dither instead
of a lookup table.

Fixes playback when skipping back and forth between low and high
bitrate WMA.

Change-Id: I4c393092e4a789bc8f98d74274fe207400b9550e
Reviewed-on: http://gerrit.rockbox.org/226
Reviewed-by: Michael Giacomelli &lt;giac2000@hotmail.com&gt;
Tested-by: Michael Giacomelli &lt;giac2000@hotmail.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The LSP feature in WMA requires that the noise table values be
doubled verses when it is not used.  Unfortunately, the previous
code would double the same values every time a LSP file was
decoded without first resetting them to their original values.
Change the code to check if the values are already doubled, and
then double/halve them as needed.  This is still a bit ugly,
in the future consider using the built in rockbox dither instead
of a lookup table.

Fixes playback when skipping back and forth between low and high
bitrate WMA.

Change-Id: I4c393092e4a789bc8f98d74274fe207400b9550e
Reviewed-on: http://gerrit.rockbox.org/226
Reviewed-by: Michael Giacomelli &lt;giac2000@hotmail.com&gt;
Tested-by: Michael Giacomelli &lt;giac2000@hotmail.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Add codecs to librbcodec.</title>
<updated>2012-04-25T20:13:20+00:00</updated>
<author>
<name>Sean Bartell</name>
<email>wingedtachikoma@gmail.com</email>
</author>
<published>2011-06-26T01:32:25+00:00</published>
<link rel='alternate' type='text/html' href='https://www.franklinwei.com/cgit/rockbox/commit/?id=f40bfc9267b13b54e6379dfe7539447662879d24'/>
<id>f40bfc9267b13b54e6379dfe7539447662879d24</id>
<content type='text'>
Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius &lt;nils@rockbox.org&gt;
Tested-by: Nils Wallménius &lt;nils@rockbox.org&gt;
</content>
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<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius &lt;nils@rockbox.org&gt;
Tested-by: Nils Wallménius &lt;nils@rockbox.org&gt;
</pre>
</div>
</content>
</entry>
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