Michael Giacomelli
|
5bd339c9f9
|
Clean up a lot of old and ugly comments. Wrap some long lines. Remove unneeded fixed point function. Move some fixed point math functions out of wmadeci. No functional changes.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22077 a1c6a512-1295-4272-9138-f99709370657
|
2009-07-28 22:19:53 +00:00 |
|
Tom Ross
|
e7afeff072
|
Sync some changes found in ffmpeg plus a spelling correction I forgot to commit.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19503 a1c6a512-1295-4272-9138-f99709370657
|
2008-12-20 06:40:46 +00:00 |
|
Michael Giacomelli
|
6da45d4c56
|
Remove unused variable.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18095 a1c6a512-1295-4272-9138-f99709370657
|
2008-07-19 20:52:43 +00:00 |
|
Michael Giacomelli
|
b50b38ae58
|
Forgot that the X5/M5 use a 64/64KB IRAM split, so they can't use the previous optimization.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17854 a1c6a512-1295-4272-9138-f99709370657
|
2008-06-28 19:21:38 +00:00 |
|
Michael Giacomelli
|
a06f651c3e
|
Put the WMA windowing and output buffer into IRAM on targets with > 96KB of it. Improves 192k WMA decoding speed by about 2MHz on PP5024, and maybe saves some more when applying DSP.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17853 a1c6a512-1295-4272-9138-f99709370657
|
2008-06-28 18:56:19 +00:00 |
|
Marcoen Hirschberg
|
b8753ffdaa
|
move structures around in the header files
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14941 a1c6a512-1295-4272-9138-f99709370657
|
2007-10-01 13:46:07 +00:00 |
|
Marcoen Hirschberg
|
b2abd67671
|
remove unused struct member and variable
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14777 a1c6a512-1295-4272-9138-f99709370657
|
2007-09-20 12:32:39 +00:00 |
|
Marcoen Hirschberg
|
c43629f08b
|
use the full resolution we get from the WMA decoder and let the DSP code do the rest
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14224 a1c6a512-1295-4272-9138-f99709370657
|
2007-08-06 23:34:28 +00:00 |
|
Michael Giacomelli
|
206e883e78
|
Initial attept at supporting Line Spectral Pairs. Various issues remain, and the ffmpeg decoder itself often fails on certain valid LSP files. Expect some issues.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14134 a1c6a512-1295-4272-9138-f99709370657
|
2007-08-02 04:47:33 +00:00 |
|
Michael Giacomelli
|
bc3ada265b
|
Add incomplete support for files using noise coding but not LSP. In practice, this means files >= 20kbps will probably work, and those below will probably not.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13945 a1c6a512-1295-4272-9138-f99709370657
|
2007-07-20 21:36:54 +00:00 |
|
Michael Giacomelli
|
362f894a53
|
Sync the bitstream functions with ffmpeg. Switch wmadeci.c over to get_vlc2 which is how ffmpeg now does it and is also slightly faster. Add in defines for later VLC memory usage optization. Kill some header files that weren't needed and update others that were out of sync. We're now much closer to the current ffmpeg codec which should make fixing the remaining issues much easier.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13859 a1c6a512-1295-4272-9138-f99709370657
|
2007-07-12 03:17:19 +00:00 |
|
Dave Chapman
|
0fd4e3f8e1
|
Restore some lost copyright headers from the ffmpeg project
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13834 a1c6a512-1295-4272-9138-f99709370657
|
2007-07-09 18:01:20 +00:00 |
|
Dave Chapman
|
88e32c2fc6
|
Reorganise the wma_decode_superframe() function - split into a separate init and decode functions. Each call to the decode function now decodes a single frame (2048 samples) instead of an entire superframe (which typically contained about 7 or 8 frames and can in theory contain up to 16 frames). This allows us to replace the 256KB output buffer with a 8KB buffer, and also perform more yields in the main decoding loop.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13833 a1c6a512-1295-4272-9138-f99709370657
|
2007-07-09 17:24:00 +00:00 |
|
Dave Chapman
|
85aa3a8d38
|
Code reorganisation - move the vlc functions back to common.c/common.h (where they originally were in the ffmpeg source). This code is still identical to the ffmpeg source.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13830 a1c6a512-1295-4272-9138-f99709370657
|
2007-07-09 10:53:56 +00:00 |
|
Michael Giacomelli
|
5a1999eacd
|
Move very commonly accessed array into IRAM. Should give a nice speedup on Coldfire.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13827 a1c6a512-1295-4272-9138-f99709370657
|
2007-07-09 01:59:33 +00:00 |
|
Dave Chapman
|
0361fd5e50
|
wma_decode_end() doesn't exist any more - it was only used to deallocate memory.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13826 a1c6a512-1295-4272-9138-f99709370657
|
2007-07-09 00:35:36 +00:00 |
|
Michael Giacomelli
|
f5114daa73
|
Move MDCT reconstruction window code over to new trig function. Improves accuracy significantly and slightly reduces code size. Codec SNR now appears to be limited by truncation to 16 bit. Comparison to MS decoder gives > 91 dB of agreement, and a lower RMS error verses the source wav then MS. Additionally, move one commonly accessed table into IRAM.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13813 a1c6a512-1295-4272-9138-f99709370657
|
2007-07-08 05:16:24 +00:00 |
|
Michael Giacomelli
|
2f1da8d24a
|
Merged in first part of ffmpeg accuracy improvments. No change on my samples, but brings us closer to ffmpeg's source and clears the way for additional bug fixes.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13804 a1c6a512-1295-4272-9138-f99709370657
|
2007-07-06 02:44:58 +00:00 |
|
Dave Chapman
|
c72824786a
|
Initial, work-in-progress, version of a WMA codec using Michael Giacomelli's fixed-point and malloc-less WMA decoder (based on the ffmpeg WMA decoder from early 2006, and also building on the work started by Paul Jones). The codec itself and the ASF parsing code were written by me, inspired by the ASF parser in libasf. Current performance is around 400% realtime on gigabeat, 100% realtime on PP and 20% realtime on Coldfire.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13769 a1c6a512-1295-4272-9138-f99709370657
|
2007-07-03 09:25:36 +00:00 |
|