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rockbox/apps/codecs/libspeex
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Thom Johansen f6b358dfa0 Negate _after_ output so we don't negate the whole output signal. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15294 a1c6a512-1295-4272-9138-f99709370657
2007-10-24 23:30:55 +00:00
..
speex Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
_kiss_fft_guts.h Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
arch.h Upgrade to libspeex 1.2beta2. Very minor performance increase (0.6% on coldfire). 2007-05-22 09:50:31 +00:00
bits.c Upgrade to libspeex 1.2beta2. Very minor performance increase (0.6% on coldfire). 2007-05-22 09:50:31 +00:00
cb_search.c Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
cb_search.h
cb_search_arm4.h
cb_search_bfin.h * Sync Speex codec with Speex SVN revision 12449 (roughly Speex 1.2beta1). 2007-02-10 11:44:26 +00:00
cb_search_sse.h
config-speex.h iir_mem16() in assembler for Coldfire for a decent performance boost. Add EMAC init in nb_celp.c, since all modes need this as a base. 2007-10-22 23:44:19 +00:00
COPYING * Document the revision of Speex imported in to Rockbox along with how the import was done. 2007-02-11 00:48:50 +00:00
exc_5_64_table.c ICONST_ATTR most constant tables in Speex. Results in a 10% improvement on Coldfire (200% to 220% realtime). Almost certainly not the best use of IRAM, but it works now. 2007-07-09 11:18:10 +00:00
exc_5_256_table.c ICONST_ATTR most constant tables in Speex. Results in a 10% improvement on Coldfire (200% to 220% realtime). Almost certainly not the best use of IRAM, but it works now. 2007-07-09 11:18:10 +00:00
exc_8_128_table.c ICONST_ATTR most constant tables in Speex. Results in a 10% improvement on Coldfire (200% to 220% realtime). Almost certainly not the best use of IRAM, but it works now. 2007-07-09 11:18:10 +00:00
exc_10_16_table.c ICONST_ATTR most constant tables in Speex. Results in a 10% improvement on Coldfire (200% to 220% realtime). Almost certainly not the best use of IRAM, but it works now. 2007-07-09 11:18:10 +00:00
exc_10_32_table.c ICONST_ATTR most constant tables in Speex. Results in a 10% improvement on Coldfire (200% to 220% realtime). Almost certainly not the best use of IRAM, but it works now. 2007-07-09 11:18:10 +00:00
exc_20_32_table.c ICONST_ATTR most constant tables in Speex. Results in a 10% improvement on Coldfire (200% to 220% realtime). Almost certainly not the best use of IRAM, but it works now. 2007-07-09 11:18:10 +00:00
fftwrap.c rename config.h to config-speex.h 2007-03-13 14:23:20 +00:00
fftwrap.h
filterbank.c Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
filterbank.h * Sync Speex codec with Speex SVN revision 12449 (roughly Speex 1.2beta1). 2007-02-10 11:44:26 +00:00
filters.c Coldfire assembler version of qmf_synth(). Wideband and ultra-wideband Speex files should see a great speedup. Also add faster and symmetric clipping in iir_mem16(). 2007-10-24 22:39:08 +00:00
filters.h Upgrade to libspeex 1.2beta2. Very minor performance increase (0.6% on coldfire). 2007-05-22 09:50:31 +00:00
filters_arm4.h Fix prototypes and warning in ARM version of libspeex filter.h 2007-05-22 10:05:32 +00:00
filters_bfin.h * Sync Speex codec with Speex SVN revision 12449 (roughly Speex 1.2beta1). 2007-02-10 11:44:26 +00:00
filters_cf.S Negate _after_ output so we don't negate the whole output signal. 2007-10-24 23:30:55 +00:00
filters_sse.h * Sync Speex codec with Speex SVN revision 12449 (roughly Speex 1.2beta1). 2007-02-10 11:44:26 +00:00
fixed_arm4.h
fixed_arm5e.h
fixed_bfin.h
fixed_debug.h * Sync Speex codec with Speex SVN revision 12449 (roughly Speex 1.2beta1). 2007-02-10 11:44:26 +00:00
fixed_generic.h * Sync Speex codec with Speex SVN revision 12449 (roughly Speex 1.2beta1). 2007-02-10 11:44:26 +00:00
gain_table.c ICONST_ATTR most constant tables in Speex. Results in a 10% improvement on Coldfire (200% to 220% realtime). Almost certainly not the best use of IRAM, but it works now. 2007-07-09 11:18:10 +00:00
gain_table_lbr.c ICONST_ATTR most constant tables in Speex. Results in a 10% improvement on Coldfire (200% to 220% realtime). Almost certainly not the best use of IRAM, but it works now. 2007-07-09 11:18:10 +00:00
hexc_10_32_table.c ICONST_ATTR most constant tables in Speex. Results in a 10% improvement on Coldfire (200% to 220% realtime). Almost certainly not the best use of IRAM, but it works now. 2007-07-09 11:18:10 +00:00
hexc_table.c ICONST_ATTR most constant tables in Speex. Results in a 10% improvement on Coldfire (200% to 220% realtime). Almost certainly not the best use of IRAM, but it works now. 2007-07-09 11:18:10 +00:00
high_lsp_tables.c
jitter.c Squish a warning. 2007-10-19 21:21:12 +00:00
kiss_fft.c Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
kiss_fft.h
kiss_fftr.c Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
kiss_fftr.h * Clean up speex.c a little. 2007-03-12 11:54:07 +00:00
lbr_48k_tables.c rename config.h to config-speex.h 2007-03-13 14:23:20 +00:00
lpc.c rename config.h to config-speex.h 2007-03-13 14:23:20 +00:00
lpc.h
lpc_bfin.h
lsp.c rename config.h to config-speex.h 2007-03-13 14:23:20 +00:00
lsp.h * Sync Speex codec with Speex SVN revision 12449 (roughly Speex 1.2beta1). 2007-02-10 11:44:26 +00:00
lsp_bfin.h
lsp_tables_nb.c ICONST_ATTR most constant tables in Speex. Results in a 10% improvement on Coldfire (200% to 220% realtime). Almost certainly not the best use of IRAM, but it works now. 2007-07-09 11:18:10 +00:00
ltp.c Coldfire assembler version of inner_prod() for another small speedup. 2007-10-24 22:50:29 +00:00
ltp.h
ltp_arm4.h Upgrade to libspeex 1.2beta2. Very minor performance increase (0.6% on coldfire). 2007-05-22 09:50:31 +00:00
ltp_bfin.h Upgrade to libspeex 1.2beta2. Very minor performance increase (0.6% on coldfire). 2007-05-22 09:50:31 +00:00
ltp_cf.S Coldfire assembler version of inner_prod() for another small speedup. 2007-10-24 22:50:29 +00:00
ltp_sse.h
Makefile Change decoder struct dynamic array members to static arrays sized based on current maximums. Move decoder state structs into IRAM for big speedups This means only one decoder can be instantiated at a time, but that should not be a problem. Tweak Makefile to use -O2 for Coldfire. Update SVN revision info to sync-time revision. 2007-10-21 23:24:06 +00:00
math.h * Sync Speex codec with Speex SVN revision 12449 (roughly Speex 1.2beta1). 2007-02-10 11:44:26 +00:00
math_approx.c Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
math_approx.h Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
mdf.c Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
medfilter.c Upgrade to libspeex 1.2beta2. Very minor performance increase (0.6% on coldfire). 2007-05-22 09:50:31 +00:00
medfilter.h
misc.c Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
misc.h Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
misc_bfin.h
modes.c Upgrade to libspeex 1.2beta2. Very minor performance increase (0.6% on coldfire). 2007-05-22 09:50:31 +00:00
modes.h Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
nb_celp.c iir_mem16() in assembler for Coldfire for a decent performance boost. Add EMAC init in nb_celp.c, since all modes need this as a base. 2007-10-22 23:44:19 +00:00
nb_celp.h Change decoder struct dynamic array members to static arrays sized based on current maximums. Move decoder state structs into IRAM for big speedups This means only one decoder can be instantiated at a time, but that should not be a problem. Tweak Makefile to use -O2 for Coldfire. Update SVN revision info to sync-time revision. 2007-10-21 23:24:06 +00:00
oggframing.c Set svn:keywords property where missing. 2007-03-03 09:11:19 +00:00
preprocess.c Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
pseudofloat.h Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
quant_lsp.c Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
quant_lsp.h
quant_lsp_bfin.h
README.rockbox Change decoder struct dynamic array members to static arrays sized based on current maximums. Move decoder state structs into IRAM for big speedups This means only one decoder can be instantiated at a time, but that should not be a problem. Tweak Makefile to use -O2 for Coldfire. Update SVN revision info to sync-time revision. 2007-10-21 23:24:06 +00:00
resample.c Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
rockbox.c Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
rockbox.h Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
sb_celp.c Fix ultra-wideband mode. Disable big parts of the encoder stuff for a smaller binary. 2007-10-22 12:03:03 +00:00
sb_celp.h Change decoder struct dynamic array members to static arrays sized based on current maximums. Move decoder state structs into IRAM for big speedups This means only one decoder can be instantiated at a time, but that should not be a problem. Tweak Makefile to use -O2 for Coldfire. Update SVN revision info to sync-time revision. 2007-10-21 23:24:06 +00:00
smallft.c rename config.h to config-speex.h 2007-03-13 14:23:20 +00:00
smallft.h Set svn:keywords property where missing. 2007-03-03 09:11:19 +00:00
SOURCES Coldfire assembler version of inner_prod() for another small speedup. 2007-10-24 22:50:29 +00:00
speex.c rename config.h to config-speex.h 2007-03-13 14:23:20 +00:00
speex_callbacks.c rename config.h to config-speex.h 2007-03-13 14:23:20 +00:00
speex_header.c Upgrade to libspeex 1.2beta2. Very minor performance increase (0.6% on coldfire). 2007-05-22 09:50:31 +00:00
stack_alloc.h Change decoder struct dynamic array members to static arrays sized based on current maximums. Move decoder state structs into IRAM for big speedups This means only one decoder can be instantiated at a time, but that should not be a problem. Tweak Makefile to use -O2 for Coldfire. Update SVN revision info to sync-time revision. 2007-10-21 23:24:06 +00:00
stereo.c rename config.h to config-speex.h 2007-03-13 14:23:20 +00:00
vbr.c Upgrade to libspeex 1.2beta2. Very minor performance increase (0.6% on coldfire). 2007-05-22 09:50:31 +00:00
vbr.h
vorbis_psy.c rename config.h to config-speex.h 2007-03-13 14:23:20 +00:00
vorbis_psy.h Sync Speex to SVN. Add new header file to adapt to Speex' new way of doing wrapper functions. 2007-10-19 21:10:25 +00:00
vq.c rename config.h to config-speex.h 2007-03-13 14:23:20 +00:00
vq.h
vq_arm4.h * Sync Speex codec with Speex SVN revision 12449 (roughly Speex 1.2beta1). 2007-02-10 11:44:26 +00:00
vq_bfin.h
vq_sse.h
window.c ICONST_ATTR most constant tables in Speex. Results in a 10% improvement on Coldfire (200% to 220% realtime). Almost certainly not the best use of IRAM, but it works now. 2007-07-09 11:18:10 +00:00

README.rockbox 

Library: libspeex-1.2beta2 (SVN version 14014)
Imported: 2007-03-12 by Dan Everton


This directory contains a local version of libspeex for decoding Ogg/Speex
audio streams. 


LICENSING INFORMATION

Speex is available under the terms of the Xiph.Org variant of the BSD
license, which is both an open source and free software license. The
license is described in the COPYING file in this directory.


IMPORT DETAILS

The .[ch] files from speex/libspeex/ and speex/include/ were imported 
into Rockbox.  This includes the test files. Some hackery was done to
the include files so that they #include properly when built in Rockbox.

A simple config-speex.h file was added to enable libspeex's fixed-point
integer-only mode and to specify the endianness of the target CPU. Also,
ARM specific optimisations were enabled.

Since some parts of Speex still rely on <math.h> functions, a simple 
include was created to get these parts to compile. Stub functions can be
found in rockbox.c in this directory.