Jean-Marc Valin
2e6876c07a
Using SSAT in SIG2WORD16() on ARMv6
2014-01-22 19:22:05 -05:00
Jean-Marc Valin
9134e96cb2
Fixes SMALL_FOOTPRINT for float
2014-01-07 17:50:46 -05:00
Jean-Marc Valin
e17ca25617
Don't allocate pulses on the stack when calling the SILK PLC.
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Also minor C89 fix for the previous commit
2014-01-07 15:27:02 -05:00
Jean-Marc Valin
b63e7110cb
Moves CELT PLC pitch search to a separate function to reduce peak stack
2014-01-07 15:02:43 -05:00
Jean-Marc Valin
5f807c176f
Adds SMALL_FOOTPRINT hack to the CELT PLC too
2014-01-07 04:48:42 -05:00
Jean-Marc Valin
9d1b6fef2a
Moves deemphasis() call out of celt_decode_lost() to reduce peak stack
2014-01-07 04:32:41 -05:00
Jean-Marc Valin
ad8371d172
Cleaning up leftovers of "freq" in celt_decode_with_ec()
2014-01-06 17:45:57 -05:00
Jean-Marc Valin
4d07b1357e
Reduces the decoder stack use by removing the pcm_silk buffer in fixed-point
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We only keep when concealing less than 10ms with SILK.
2014-01-06 17:43:20 -05:00
Jean-Marc Valin
14ca4ed682
Moves the remains of compute_inv_mdcts() to celt_synthesis()
2014-01-06 09:31:09 -05:00
Jean-Marc Valin
32454dcadc
Hack that makes the SMALL_FOOTPRINT CELT decoder use only 4.25 kB of stack.
2014-01-06 09:11:52 -05:00
Jean-Marc Valin
bdc7b93358
Reduces decoder stack usage by only storing one channel of denormalized MDCT
2014-01-06 08:58:38 -05:00
Jean-Marc Valin
4a6744a446
Some cleaning up of the synthesis code.
2014-01-05 21:40:02 -05:00
Jean-Marc Valin
e1f846208e
Minor cleanup -- nothing to see here
2013-12-29 18:45:49 -05:00
Jean-Marc Valin
91f8010108
Removing indirections
2013-12-10 22:09:33 -05:00
Jean-Marc Valin
d5553e8aca
Using OPUS_COPY()/OPUS_CLEAR() in the decoder too
2013-12-10 02:32:26 -05:00
Jean-Marc Valin
96408b6295
Fixes Opus-custom preemphasis
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Also adds denorm avoidance for non-48 kHz rates
2013-12-02 20:02:37 -05:00
Timothy B. Terriberry
39386e0b85
Adds Neon assembly for correlation/convolution
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Optimizing celt_pitch_xcorr()/xcorr_kernel() which also speeds up
FIRs, IIRs and auto-correlations
Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
2013-11-18 13:41:17 -05:00
Gregory Maxwell
60429d366f
Avoid a bogus uninitialized warning and simplify some code.
2013-10-28 12:55:41 -07:00
Gregory Maxwell
7830cf1bd2
Replace "inline" with OPUS_INLINE.
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Newer versions of MSVC are unhappy with the strategy of the build
environment redefining "inline" (even though they don't support the
actual keyword). Instead we define OPUS_INLINE to the right thing
in opus_defines.h.
This is the same approach we use for restrict.
2013-10-28 10:18:54 -07:00
Jean-Marc Valin
260474fb81
Fixes a denorm problem when the input goes silent after active audio
2013-07-12 01:22:09 -04:00
Jean-Marc Valin
ee2506b2c7
Moves log2Amp inside denormalise_bands() and get rid of bandE[]
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Also get rid of the MSE measurement code which is outdated and no longer useful
2013-06-16 20:24:52 -04:00
Jean-Marc Valin
3afc6ffff0
Don't call denormalise_bands() on silence
2013-06-16 15:40:10 -04:00
Aurélien Zanelli
cd4c8249bc
Add run-time CPU detection and support for ARM architecture
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Run-time CPU detection (RTCD) is enabled by default if target platform support
it.
It can be disable at compile time with --disable-rtcd option.
Add RTCD support for ARM architecture.
Thanks to Timothy B. Terriberry for help and code review
Signed-off-by: Timothy B. Terriberry <tterribe@xiph.org>
2013-06-04 16:23:22 -07:00
Jean-Marc Valin
2fe4700f76
Skip down-sampling in deemphasis() when not needed.
2013-05-26 18:54:25 -04:00
Jean-Marc Valin
efdd314305
Fixes fixed-point PLC issue reported in trac ticket #1954
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A fixed shift factor was insufficient to properly estimate the decay
factor, resulting in extreme attenuation of the PLC excitation.
2013-05-18 02:18:42 -04:00
Timothy B. Terriberry
c152d602aa
Use dynamic stack allocation in the SILK encoder.
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This makes all remaining large stack allocations use the vararray
macros.
This continues the work of 6f2d9f50
2013-05-08 10:37:17 -07:00
Jean-Marc Valin
ebdfbfb743
Fixes stupid preprocessor-related bug introduced in e368e6209.
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Would cause the preemphasis and deemphasis to fail, but only with
custom modes enabled.
2013-01-09 11:13:00 -05:00
Jean-Marc Valin
e368e62092
Remove condition in pre/de-emphasis when not building with custom modes
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Should slightly improve coverage and reduce code size
2013-01-03 14:28:28 -05:00
Jean-Marc Valin
5fb50adb7a
skip bands with no energy
2012-12-21 11:52:03 -05:00
Timothy B. Terriberry
8eb9bb7939
Numerous PLC cleanups.
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This should reduce computation, reduce stack usage, and be
substantially easier to read, but should not change behavior.
It's not quite bit-exact because I collapsed the application of the
decay and the fading into a single pass to save one multiply per
sample, but the difference signal is silent.
It also changes the comments into complete sentences.
2012-12-07 14:07:22 -08:00
Jean-Marc Valin
027a202151
More comments in the PLC
2012-12-01 22:01:09 -05:00
Nils Wallménius
e0884feb36
Window both sides of overlap when adding them.
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Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
2012-12-01 15:54:04 -05:00
Jean-Marc Valin
0094c88105
Better comments in the PLC
2012-11-29 18:00:02 -05:00
Jean-Marc Valin
e0491e7d18
Fixes many many issues in the CELT PLC
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Previous code was so broken that it's`not worth listing the changes.
Aside from quality, one obvious improvement is a 3.75k reduction in stack size
2012-11-29 16:51:49 -05:00
Ralph Giles
83f8012ca5
Remove obsolete #ifdef OPUS_BUILD.
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We always define OPUS_BUILD, so this code has no effect.
Likewise there is no reason for it to be conditional.
According to Jean-Marc it's left over from when we had
an alternate CELT_BUILD define.
2012-11-29 10:36:12 -08:00
Nils Wallménius
4357e9390d
Follow up to commit 8b906c102b
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Remove two now redundant zeroing loops
Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
2012-11-12 21:23:20 -05:00
Jean-Marc Valin
1ecb7eaeaf
Fixes issues with multiple files defining CELT_C
2012-11-08 11:25:20 -05:00
Jean-Marc Valin
6906210cb0
Splits out the CELT encoder and decoder
2012-11-08 09:42:27 -05:00
