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20 commits

Author SHA1 Message Date
Mohamed Tarek
1bef4c6650 revert last commit (r24660). There was a mistake in the location of the 
shifts leading to a deteriorated sound quality for some samples.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24662 a1c6a512-1295-4272-9138-f99709370657
 2010-02-15 00:04:33 +00:00
Mohamed Tarek
b540be8f4b Fold a 2-bit shift into decodeSpectrum(), saves 1MHz on ARM, +2% 
speedup.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24660 a1c6a512-1295-4272-9138-f99709370657
 2010-02-14 23:41:32 +00:00
Andree Buschmann
f5a0d61a1b Further optimization and minor clean up of atrac codec: Unroll iqmf_dewindowing for non-ARM speeds up decoder by +10% on H300. Removed some non-used arrays. Codec is still not fully realtime on Coldfire targets. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24648 a1c6a512-1295-4272-9138-f99709370657
 2010-02-14 14:38:18 +00:00
Mohamed Tarek
8722c6f2bb Make deceodeSpectrum() store the spectral coefficients of odd bands in reverse order, rather than having to reverse them in IMLT(). Also saves 0.11MHz, ~0.16% speedup on PP5024. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24641 a1c6a512-1295-4272-9138-f99709370657
 2010-02-14 01:59:14 +00:00
Andree Buschmann
2dbb424eb9 Further performance optimization of the atrac3 decoder. Rework the internal sample representation and usage of dsp routines. For now a quick and dirty solution is used to add a fract part of 2 bits. Through this several buffers and functions as well as copy loops could be removed. Furthermore add some ASM for coldfire and place some additional data in IRAM on PP5022/24 and X5/M5. Speedup on ARM: +3%, speedup on Coldfire: +639%. Both ARM and Coldfire can decode in realtime now. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22561 a1c6a512-1295-4272-9138-f99709370657
 2009-08-30 14:14:22 +00:00
Andree Buschmann
f62125bb72 fix red 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22549 a1c6a512-1295-4272-9138-f99709370657
 2009-08-29 19:57:21 +00:00
Andree Buschmann
f4774bf5bf Submit interim version of FS#10565. Performance optimization of atrac3 decoder for ARM. Introduce ASM routines for multiplications and two synthesis loops, refactured parts of synthesis and windowing. Speeds up decoding by a factor of 2.4 on PP502x. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22548 a1c6a512-1295-4272-9138-f99709370657
 2009-08-29 19:44:27 +00:00
Jens Arnold
aa24b677e0 Revert r22339 as it causes immediate stack overflow on target, at least on coldfire. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22341 a1c6a512-1295-4272-9138-f99709370657
 2009-08-16 11:32:41 +00:00
Michael Giacomelli
3b81dd4749 Put QMF coefficients into IRAM. Update test program to still compile with IBSS_ATTR defined. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22340 a1c6a512-1295-4272-9138-f99709370657
 2009-08-16 04:05:40 +00:00
Michael Giacomelli
415546921b Make the IMDCT temporary working buffer a local variable instead of keeping one for each channel. Saves 4KB of RAM. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22339 a1c6a512-1295-4272-9138-f99709370657
 2009-08-16 02:24:09 +00:00
Mohamed Tarek
bd4fc82b3b Fix handling of unaligned input buffers in libatrac. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22322 a1c6a512-1295-4272-9138-f99709370657
 2009-08-15 14:52:28 +00:00
Mohamed Tarek
1b87b45e40 Fix yellow. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22312 a1c6a512-1295-4272-9138-f99709370657
 2009-08-14 17:43:19 +00:00
Mohamed Tarek
685628cf18 Support for playback of atrac3 audio in rm, in sim. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22311 a1c6a512-1295-4272-9138-f99709370657
 2009-08-14 17:36:57 +00:00
Mohamed Tarek
3ee45ab7be Use the bytestream reading functions form librm and drop bytestream.h and libavutil/ 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22309 a1c6a512-1295-4272-9138-f99709370657
 2009-08-14 15:26:04 +00:00
Mohamed Tarek
0b6aa38516 Move main() outside atrac3.c and create atrac3.h 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22307 a1c6a512-1295-4272-9138-f99709370657
 2009-08-14 08:24:39 +00:00
Mohamed Tarek
ebd67b1c6f Replace av_log() with DEBUGF and drop some now-useless files. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22306 a1c6a512-1295-4272-9138-f99709370657
 2009-08-14 08:12:28 +00:00
Mohamed Tarek
4f72502329 Fix a (stupid) mistake in libatrac/atrac3.c 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22305 a1c6a512-1295-4272-9138-f99709370657
 2009-08-14 03:41:59 +00:00
Mohamed Tarek
e17d3edf87 Remove mallocs from libatrac. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22299 a1c6a512-1295-4272-9138-f99709370657
 2009-08-13 20:51:03 +00:00
Mohamed Tarek
432e2ecc13 Modify libatrac to use fixed-point arithmetic. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22298 a1c6a512-1295-4272-9138-f99709370657
 2009-08-13 20:38:59 +00:00
Mohamed Tarek
519adfbaae Import libatrac from ffmpeg and modify librm to support ATRAC3. 
The decoder is still in floating point.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22235 a1c6a512-1295-4272-9138-f99709370657
 2009-08-10 14:46:31 +00:00