Timothy B. Terriberry
23f503ad1c
Fix warnings in pedantic build.
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This should suppress our current issues with unused parameters,
unused variables, and set-but-not-used variables.
2014-12-26 08:31:39 -08:00
xiangmingzhu
c95c9a048f
Cisco optimization for x86 & fixed point
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1. Only for fixed point on x86 platform (32bit and 64bit, uses SIMD
intrinsics up to SSE4.2)
2. Use "configure --enable-fixed-point --enable-intrinsics" to enable
optimization, default is disabled.
3. Official test cases are verified and passed.
Signed-off-by: Timothy B. Terriberry <tterribe@xiph.org>
2014-10-03 21:16:00 -04:00
Gregory Maxwell
6d2d5c424d
Suppress some coverity false positives.
2014-04-16 18:29:26 -07:00
Jean-Marc Valin
ce1173c77f
Fixes use of uninitialized values in dynalloc_analysis()
2014-01-20 18:46:33 -05:00
Jean-Marc Valin
379af35fd4
Minor cleanup in dynalloc_analysis()
2014-01-19 01:42:04 -05:00
Jean-Marc Valin
05548fa1c1
Adds a median filter to make dynalloc_analysis() more conservative
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This should prevent extreme dynalloc behaviour in cases where some
bands are heavily attenuated.
2014-01-19 01:32:53 -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
306d7f5a30
fixed-point: slight (but free) accuracy improvement in compute_band_energies()
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Also moves the VSHR32() condition outside the loop just in case some compilers
don't optimize that properly.
2013-12-16 01:08:21 -05:00
Jean-Marc Valin
4a168eb343
Remove useless code in alloc_trim_analysis()
2013-12-11 01:34:06 -05:00
Jean-Marc Valin
91f8010108
Removing indirections
2013-12-10 22:09:33 -05:00
Pedro Becerra
a9b7def9f5
s/MAX16/MAX32/ in transient_analysis()
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Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
2013-12-09 16:08:29 -05:00
Jean-Marc Valin
57cd849cf7
Defining celt_inner_prod() and using it instead of explicit loops.
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Also adds an SSE-optimized celt_inner_prod().
2013-12-09 15:26:58 -05:00
Jean-Marc Valin
ff072009fe
Replaces inline copies and initialization with OPUS_*() macros.
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This is a bit faster at -O2 because memcpy()/memmove()/memset() are
vectorized. The code is also cleaner.
2013-12-09 15:26:52 -05:00
Jean-Marc Valin
c94e4bb103
Optimizes encoder NaN detection and clipping by only running them when needed
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NaN detection should now be able to catch values that would create NaNs
further down.
2013-12-09 15:26:03 -05:00
Jean-Marc Valin
5626908ec3
Fixed-point fast-path for normal 48 kHz encoding in celt_preemphasis()
2013-12-05 16:40:59 -05:00
Jean-Marc Valin
aed1009df9
Turns a 16x32 multiply into a 16x16 one in celt_preemphasis().
2013-12-05 13:36:48 -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
Jean-Marc Valin
086ea7c7e5
Whoa! This fixes a pretty bad fixed-point stereo regression
2013-11-29 16:47:52 -05:00
Jean-Marc Valin
d6eb9c468f
Silences a warning in fixed-point
2013-11-25 22:33:43 -05:00
Jean-Marc Valin
2924af4db0
Merges surround and stereo intensity stereo thresholds again.
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The different results for surround were mostly due to a bug in squishyball.
2013-11-25 21:24:30 -05:00
Jean-Marc Valin
a47d6f308f
Intensity stereo update, partially based on Monty's listening
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Intensity stereo is now based on equiv_rate and should no longer oscillate
in hybrid mode. Also, there is now a separate set of thresholds for
surround tuned by Monty. The non-surround thresholds were also updated at
low bitrate to be closer to what Monty found for surround.
2013-11-25 00:03:31 -05:00
Jean-Marc Valin
41e8906cd6
opus_custom_encoder_init() now only needed for custom modes.
2013-11-20 19:34:14 -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
Jean-Marc Valin
1b28e0cae5
Oops, missing semicolon on RESTORE_STACK in previous commit
2013-11-15 01:57:25 -05:00
Jean-Marc Valin
e83d2aa3f7
Adds missing RESTORE_STACKs in celt_encode_with_ec()
2013-11-15 01:52:28 -05:00
Jean-Marc Valin
2dc27dfa13
Rename preemphasis() to celt_preemphasis() to avoid amrnb symbol clash
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http://lists.xiph.org/pipermail/opus/2013-November/002372.html
2013-11-13 23:18:26 -05:00
Jean-Marc Valin
ab86a9cca7
Fixes more warnings
2013-11-13 23:06:25 -05:00
Jean-Marc Valin
0d584b905a
Prevents LFE from busting at really low bitrate
2013-11-13 22:42:04 -05:00
Jean-Marc Valin
a71c9adf52
Fixes MSVC conversion warnings
2013-11-13 12:07:01 -05:00
Jean-Marc Valin
ca6fac041b
Fixes some minor issues found by scan build
2013-11-09 18:28:40 -05:00
Jean-Marc Valin
c1959e7dc3
Taking into account the frame size in more encoder decisions
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Stereo mode, stereo width, min bandwidth, VBR damping
2013-11-08 19:24:10 -05:00
Jean-Marc Valin
8f466274d3
Removes a float var that shouldn't have been there
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Defining FIXED_POINT and DISABLE_FLOAT_API now leaves no float instruction
2013-10-28 21:50:10 -04:00
Jean-Marc Valin
9c23f5cdca
Makes stereo savings still less aggressive
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Caps the savings at 1 bit per (coded) sample. This doesn't really increase
the bitrate and fixes some issues, e.g. with IgorC's "twilight" sample.
2013-10-28 14:15:18 -04:00
Jean-Marc Valin
942fc816d1
Replaces log2() with celt_log2() and fixes a potential divide-by-zero
2013-10-01 19:27:30 -04:00
Jean-Marc Valin
7c60625f80
Merge branch 'exp_surround1'
2013-10-01 17:06:09 -04:00
Stefan Hacker
a32fa319d3
Avoid using C++ keyword 'new'
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Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
2013-09-29 00:07:52 -04:00
Jean-Marc Valin
36a21ed536
Very basic surround rate calibration
2013-09-14 15:46:09 -04:00
Jean-Marc Valin
ae7dc8a13f
More surround masking tuning
2013-09-13 15:05:50 -04:00
Jean-Marc Valin
039e9ab155
Tuning the surround masking
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We're now a bit more conservative and only take into account the bands
that are being codec. Also weighting the rate saving by the band width.
2013-09-12 03:05:43 -04:00
Jean-Marc Valin
ba7dbb365e
Analysis scaling fixes
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This should make the scaling the same for fixed and float. It changes the float
scaling too by normalizing by the number of channels, which matters for
bandwidth detection.
2013-09-09 16:39:19 -04:00
Jean-Marc Valin
3ab03e0556
First pass at making the analysis code run with FIXED_POINT
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Code is still float, but at least tonality esitmation seems to work.
Speech/music analysis is still disabled.
2013-09-06 16:00:39 -04:00
Jean-Marc Valin
0f68696a97
Adds trim and dynalloc control to surround masking
2013-09-05 12:49:55 -04:00
Jean-Marc Valin
fdceae89bf
Surround masking rewrite
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The channel energy is now computed using an MDCT in the multi-stream
encoder rather than computing the energy of the stereo downmix.
2013-08-30 21:58:02 -04:00
Jean-Marc Valin
e45509294c
Better handling of the dynalloc cap for CBR/CVBR
2013-07-30 05:12:46 -04:00
Jean-Marc Valin
8259492a7d
Fixes an integer wrap-around due to an exceedingly large QCONST16
2013-07-25 13:55:15 -04:00
Gregory Maxwell
5280c71883
Revert "Fixes a number of double promotions and missing casts."
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This reverts commit 43279728cd
2013-07-15 15:51:24 -07:00
Gregory Maxwell
43279728cd
Fixes a number of double promotions and missing casts.
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At a minimum MSVC warns on some of this stuff.
2013-07-15 15:23:03 -07:00
Jean-Marc Valin
cd373b54de
Surround masking tuning
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More conservative surround masking
Disables temporal VBR on surround
Disables tonality on LFE
2013-07-07 02:51:07 -04:00
