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13 commits

Author SHA1 Message Date
Andree Buschmann
7b054efa0b FS#12117: Use more IRAM for atrac3. Speeds up decoding from 1-2% (PP5022, PP5024, S5L870x) to 11% (MCF5250). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29892 a1c6a512-1295-4272-9138-f99709370657
 2011-05-16 21:47:13 +00:00
Andree Buschmann
5e6b9f7ed4 Use MEM_ALIGN_ATTR in libatrac3. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28643 a1c6a512-1295-4272-9138-f99709370657
 2010-11-22 23:41:57 +00:00
Michael Giacomelli
f51189fa4d Commit FS#11709 by me. Introduces ARMv5E optimized iQMF for atrac3 based on packed multiply instructions. Additionally, improves scheduling on arm9 and arm11 and forces cache alignment of buffers on all targets. Accuracy is slightly reduced, but still greater then 16 bit. Clip+ CPU clock required for LP2 files decreases by 13MHz and ARM11 by 18MHz. No performance or accuracy changes on armv4 or non-arm. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28549 a1c6a512-1295-4272-9138-f99709370657
 2010-11-10 18:29:29 +00:00
Nils Wallménius
a87c61854e Sync codeclib bitstream code with upstream ffmpeg code. Build ffmpeg_bitstream.c as a part of the codec lib. Use this codeclib implementation in libffmpegFLAC. Implement adapted version of the unaligned longword reading optimization for coldfire from the libwma version of this code. Speeds up cook decoding by 2-3% on h300 and flac by 25% on h300, also speeds up flac decoding by 2% on c200 (decoding speed of cook on c200 is unchanged). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27430 a1c6a512-1295-4272-9138-f99709370657
 2010-07-15 16:19:17 +00:00
Dave Hooper
42774d3128 Merge from branches/mdctexp - faster ifft+imdct in codec lib 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24712 a1c6a512-1295-4272-9138-f99709370657
 2010-02-17 00:49:53 +00:00
Mohamed Tarek
2c25fa88a5 Add the Rockbox GNU header to some files in libatrac. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24692 a1c6a512-1295-4272-9138-f99709370657
 2010-02-16 10:35:22 +00:00
Mohamed Tarek
2e314093c8 "Detach" ATRAC3 from RM. Since ATRAC3 isn't really specific to RM, it must not be obligatory to initialize the decoder through RMContext. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24682 a1c6a512-1295-4272-9138-f99709370657
 2010-02-16 01:47:22 +00:00
Andree Buschmann
800e3d9a97 Major optimization of atrac3 codec for Coldfire targets. Moving several number cruncher arrays to IRAM. Decoder is sped up by +50% on h300, decoder now finally is realtime on Coldfire targets as well. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24677 a1c6a512-1295-4272-9138-f99709370657
 2010-02-15 22:38:01 +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
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
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
adf3f09251 Move bitstream.[ch] to codecs/lib/ffmpeg_bitstream.[ch] to avoid duplicate copies across codecs. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22337 a1c6a512-1295-4272-9138-f99709370657
 2009-08-15 22:06:42 +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