58 Commits

Author SHA1 Message Date
kwiberg
ac9f876bc0 Sort #includes that got unsorted when gmock.h and gtest.h moved to webrtc/test/
gmock.h and gtest.h were moved (or rather, got wrappers so that we
could put some icky compatibility hacks in one place instead of 500)
in this CL: https://codereview.webrtc.org/2358993004/

NOPRESUBMIT=true
BUG=webrtc:6398

Review-Url: https://codereview.webrtc.org/2381013002
Cr-Commit-Position: refs/heads/master@{#14464}
2016-10-01 05:29:53 +00:00
kwiberg
77eab70470 Enable the -Wundef warning for clang
NOPRESUBMIT=true
BUG=webrtc:6398

Review-Url: https://codereview.webrtc.org/2358993004
Cr-Commit-Position: refs/heads/master@{#14425}
2016-09-29 00:42:08 +00:00
kwiberg
942c8515bc Fix Chromium clang plugin warnings
BUG=webrtc:163

Review-Url: https://codereview.webrtc.org/2288593004
Cr-Commit-Position: refs/heads/master@{#13961}
2016-08-29 20:10:35 +00:00
aluebs
95663fe746 Remove unused NonlinearBeamformer interface
Review-Url: https://codereview.webrtc.org/2129663002
Cr-Commit-Position: refs/heads/master@{#13451}
2016-07-12 19:43:09 +00:00
deadbeef
bb01781982 Adding back removed methods to MockNonlinearBeamformer.
This is temporary, until downstream dependencies are updated.

TBR=aluebs@webrtc.org

Review-Url: https://codereview.webrtc.org/2121553002
Cr-Commit-Position: refs/heads/master@{#13374}
2016-07-02 20:34:56 +00:00
Alejandro Luebs
f4022ffa1a Pull out the PostFilter to its own NonlinearBeamformer API
This is done to avoid having a nonlinear component in the AEC path.
Now the linear delay and sum is run before the AEC and the postfilter after it.

This change landed originally at: https://codereview.webrtc.org/1982183002/

R=peah@webrtc.org
TBR=henrik.lundin@webrtc.org

Review URL: https://codereview.webrtc.org/2110593003 .

Cr-Commit-Position: refs/heads/master@{#13371}
2016-07-02 00:19:32 +00:00
Alejandro Luebs
a3c51ea9f4 Revert "Pull out the PostFilter to its own NonlinearBeamformer API"
This reverts commit b983112bc7686ed4276def4c9215c498444c6bdd.

It was breaking dependencies.
TBR=aluebs@webrtc.org
BUG=

Review URL: https://codereview.webrtc.org/2110503002 .

Cr-Commit-Position: refs/heads/master@{#13316}
2016-06-28 17:38:41 +00:00
Alejandro Luebs
b983112bc7 Pull out the PostFilter to its own NonlinearBeamformer API
This is done to avoid having a nonlinear component in the AEC path.
Now the linear delay and sum is run before the AEC and the postfilter after it.

R=henrik.lundin@webrtc.org, peah@webrtc.org

Review URL: https://codereview.webrtc.org/1982183002 .

Cr-Commit-Position: refs/heads/master@{#13314}
2016-06-28 17:02:57 +00:00
peah
faed4ab24b Revert of Moved ring-buffer related files from common_audio to audio_processing" (patchset #2 id:20001 of https://codereview.webrtc.org/1858123003/ )
Reason for revert:
Because of down-stream dependencies, this CL needs to be reverted.

The dependencies will be resolved and then the CL will be relanded.

Original issue's description:
> Revert "Revert of Moved ring-buffer related files from common_audio to audio_processing (patchset #8 id:150001 of https://codereview.webrtc.org/1846903004/ )"
>
> This reverts commit c54aad6ae07fe2a44a65be403386bd7d7d865e5b.
>
> BUG=webrtc:5724
> NOPRESUBMIT=true
>
> Committed: https://crrev.com/8864fe5e08f8d8711612526dee9a812adfcd3be1
> Cr-Commit-Position: refs/heads/master@{#12247}

TBR=henrik.lundin@webrtc.org,ivoc@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5724

Review URL: https://codereview.webrtc.org/1855393004

Cr-Commit-Position: refs/heads/master@{#12248}
2016-04-05 21:57:55 +00:00
peah
8864fe5e08 Revert "Revert of Moved ring-buffer related files from common_audio to audio_processing (patchset #8 id:150001 of https://codereview.webrtc.org/1846903004/ )"
This reverts commit c54aad6ae07fe2a44a65be403386bd7d7d865e5b.

BUG=webrtc:5724
NOPRESUBMIT=true

Review URL: https://codereview.webrtc.org/1858123003

Cr-Commit-Position: refs/heads/master@{#12247}
2016-04-05 21:42:51 +00:00
peah
c54aad6ae0 Revert of Moved ring-buffer related files from common_audio to audio_processing (patchset #8 id:150001 of https://codereview.webrtc.org/1846903004/ )
Reason for revert:
This CL caused a google3 breakage due to dependencies in Google3.

I will fix that, and reland.

Original issue's description:
> Moved ring-buffer related files from common_audio to audio_processing
>
> BUG=webrtc:5724
> NOPRESUBMIT=true
>
> Committed: https://crrev.com/711ccc8d96490f58cc3d7fd9207c19d4d881d4dc
> Cr-Commit-Position: refs/heads/master@{#12227}

TBR=ivoc@webrtc.org,henrik.lundin@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5724

Review URL: https://codereview.webrtc.org/1856323002

Cr-Commit-Position: refs/heads/master@{#12232}
2016-04-05 07:02:35 +00:00
peah
711ccc8d96 Moved ring-buffer related files from common_audio to audio_processing
BUG=webrtc:5724
NOPRESUBMIT=true

Review URL: https://codereview.webrtc.org/1846903004

Cr-Commit-Position: refs/heads/master@{#12227}
2016-04-05 05:57:48 +00:00
kwiberg
4a206a96c1 Remove webrtc::ScopedVector
We can (and should) use std::vector<std::unique_ptr<T>> instead.
Because it's standard, and because it's safer since callers have to
manually wrap elements in std::unique_ptr before inserting them and
manually unwrap them after inserting them.

Review URL: https://codereview.webrtc.org/1839603002

Cr-Commit-Position: refs/heads/master@{#12182}
2016-03-31 17:24:31 +00:00
aluebs
fc737e5442 Fix division by zero in NonlinearBeamformer
BUG=webrtc:5703

Review URL: https://codereview.webrtc.org/1841323002

Cr-Commit-Position: refs/heads/master@{#12163}
2016-03-30 16:37:47 +00:00
peah
7ea928e8e2 Renamed the test::BitExactFrame method to test::VectorDifferenceBounded.
BUG=

Review URL: https://codereview.webrtc.org/1841213002

Cr-Commit-Position: refs/heads/master@{#12162}
2016-03-30 15:14:02 +00:00
peah
059dadf0c4 Added missing TODOs in the beamformer unit test code.
BUG=

Review URL: https://codereview.webrtc.org/1835833004

Cr-Commit-Position: refs/heads/master@{#12151}
2016-03-29 22:15:14 +00:00
peah
ceef04613b Added a bitexactness test for the beamformer in the audio processing module
BUG=webrtc:5341

Review URL: https://codereview.webrtc.org/1806853004

Cr-Commit-Position: refs/heads/master@{#12137}
2016-03-29 12:35:56 +00:00
kwiberg
88788adcfd Replace scoped_ptr with unique_ptr in webrtc/modules/audio_processing/
BUG=webrtc:5520

Review URL: https://codereview.webrtc.org/1710483002

Cr-Commit-Position: refs/heads/master@{#11684}
2016-02-19 15:04:56 +00:00
Peter Kasting
6955870806 Convert channel counts to size_t.
IIRC, this was originally requested by ajm during review of the other size_t conversions I did over the past year, and I agreed it made sense, but wanted to do it separately since those changes were already gargantuan.

BUG=chromium:81439
TEST=none
R=henrik.lundin@webrtc.org, henrika@webrtc.org, kjellander@webrtc.org, minyue@webrtc.org, perkj@webrtc.org, solenberg@webrtc.org, stefan@webrtc.org, tina.legrand@webrtc.org

Review URL: https://codereview.webrtc.org/1316523002 .

Cr-Commit-Position: refs/heads/master@{#11229}
2016-01-13 00:26:55 +00:00
pkasting
25702cb162 Misc. small cleanups.
* Better param names
* Avoid using negative values for (bogus) placeholder channel counts (mostly in tests).  Since channels will be changing to size_t, negative values will be illegal; it's sufficient to use 0 in these cases.
* Use arraysize()
* Use size_t for counting frames, samples, blocks, buffers, and bytes -- most of these are already size_t in most places, this just fixes some stragglers
* reinterpret_cast<int64_t>(void*) is not necessarily safe; use uintptr_t instead
* Remove unnecessary code, e.g. dead code, needlessly long/repetitive code, or function overrides that exactly match the base definition
* Fix indenting
* Use uint32_t for timestamps (matching how it's already a uint32_t in most places)
* Spelling
* RTC_CHECK_EQ(expected, actual)
* Rewrap
* Use .empty()
* Be more pedantic about matching int/int32_t/
* Remove pointless consts on input parameters to functions
* Add missing sanity checks

All this was found in the course of constructing https://codereview.webrtc.org/1316523002/ , and is being landed separately first.

BUG=none
TEST=none

Review URL: https://codereview.webrtc.org/1534193008

Cr-Commit-Position: refs/heads/master@{#11191}
2016-01-08 21:50:32 +00:00
Karl Wiberg
be57983f4b Rename Maybe to Optional
And add examples of good and bad usage to the documentation.

R=aluebs@webrtc.org, henrik.lundin@webrtc.org, pthatcher@webrtc.org

Review URL: https://codereview.webrtc.org/1432553007 .

Cr-Commit-Position: refs/heads/master@{#10588}
2015-11-10 21:34:32 +00:00
kwiberg
102c6a61bc Replace rtc:🦗:Settable with rtc::Maybe
The former is very similar to the latter, but less general (mostly in
naming).

This CL, which is the first to use Maybe at scale, also removes the implicit conversion from T to Maybe<T>, since it was agreed that the increased verbosity increased legibility.

Review URL: https://codereview.webrtc.org/1430433004

Cr-Commit-Position: refs/heads/master@{#10461}
2015-10-30 09:47:44 +00:00
Alejandro Luebs
cb3f9bd9c0 Make the nonlinear beamformer steerable
Depends on this CL: https://codereview.webrtc.org/1395453004/

R=andrew@webrtc.org

Review URL: https://codereview.webrtc.org/1394103003 .

Cr-Commit-Position: refs/heads/master@{#10458}
2015-10-30 01:21:40 +00:00
Henrik Kjellander
98f53510b2 system_wrappers: rename interface -> include
BUG=webrtc:5095
R=tommi@webrtc.org

Review URL: https://codereview.webrtc.org/1413333002 .

Cr-Commit-Position: refs/heads/master@{#10438}
2015-10-28 17:17:50 +00:00
aluebs
1897f77806 Make the high frequency correction range depend on the target angle
Depends on this CL: https://codereview.webrtc.org/1388033002/

Review URL: https://codereview.webrtc.org/1395453004

Cr-Commit-Position: refs/heads/master@{#10331}
2015-10-20 02:49:34 +00:00
aluebs
4a66e4a4d8 Make the separation between target and interferer scenario depend on microphone spacing in NonlinearBeamformer
Depends on this CL: https://codereview.webrtc.org/1378973003/

Review URL: https://codereview.webrtc.org/1388033002

Cr-Commit-Position: refs/heads/master@{#10330}
2015-10-20 01:02:43 +00:00
aluebs
45daf7b26f Implement new version of the NonlinearBeamformer
Sounds better according to a MUSHRA listening test.
The computational complexity is unaffected.
An empirically estimated gain was added to compensate for the attenuation introduced by the algorithm.
There are some TODOs, which I will address in follow up CLs.

It was tested in Hangouts without headphones and highest volume, to make sure it doesn't affect the AEC.

Review URL: https://codereview.webrtc.org/1378973003

Cr-Commit-Position: refs/heads/master@{#10308}
2015-10-17 00:04:14 +00:00
henrikg
91d6edef35 Add RTC_ prefix to (D)CHECKs and related macros.
We must remove dependency on Chromium, i.e. we can't use Chromium's base/logging.h. That means we need to define these macros in WebRTC also when doing Chromium builds. And this causes redefinition.

Alternative solutions:
* Check if we already have defined e.g. CHECK, and don't define them in that case. This makes us depend on include order in Chromium, which is not acceptable.
* Don't allow using the macros in WebRTC headers. Error prone since if someone adds it there by mistake it may compile fine, but later break if a header in added or order is changed in Chromium. That will be confusing and hard to enforce.
* Ensure that headers that are included by an embedder don't include our macros. This would require some heavy refactoring to be maintainable and enforcable.
* Changes in Chromium for this is obviously not an option.

BUG=chromium:468375
NOTRY=true

Review URL: https://codereview.webrtc.org/1335923002

Cr-Commit-Position: refs/heads/master@{#9964}
2015-09-17 07:24:51 +00:00
henrikg
3c089d751e Add RTC_ prefix to contructormagic macros.
We must remove dependency on Chromium, i.e. we can't use Chromium's base/logging.h. That means we need to define these macros in WebRTC also when doing Chromium builds. And this causes redefinition.

* DISALLOW_ASSIGN -> RTC_DISALLOW_ASSIGN
* DISALLOW_COPY_AND_ASSIGN -> RTC_DISALLOW_COPY_AND_ASSIGN
* DISALLOW_IMPLICIT_CONSTRUCTORS -> RTC_DISALLOW_IMPLICIT_CONSTRUCTORS

Related CL: https://codereview.webrtc.org/1335923002/

BUG=chromium:468375
NOTRY=true

Review URL: https://codereview.webrtc.org/1345433002

Cr-Commit-Position: refs/heads/master@{#9953}
2015-09-16 12:37:52 +00:00
Alejandro Luebs
9b351151f9 Move mock_nonlinear_beamformer to only be a header
R=andrew@webrtc.org

Review URL: https://codereview.webrtc.org/1305303003 .

Cr-Commit-Position: refs/heads/master@{#9781}
2015-08-25 17:24:51 +00:00
Peter Kasting
dce40cf804 Update a ton of audio code to use size_t more correctly and in general reduce
use of int16_t/uint16_t.

This is the upshot of a recommendation by henrik.lundin and kwiberg on an original small change ( https://webrtc-codereview.appspot.com/42569004/#ps1 ) to stop using int16_t just because values could fit in it, and is similar in nature to a previous "mass change to use size_t more" ( https://webrtc-codereview.appspot.com/23129004/ ) which also needed to be split up for review but to land all at once, since, like adding "const", such changes tend to cause a lot of transitive effects.

This was be reviewed and approved in pieces:
https://codereview.webrtc.org/1224093003
https://codereview.webrtc.org/1224123002
https://codereview.webrtc.org/1224163002
https://codereview.webrtc.org/1225133003
https://codereview.webrtc.org/1225173002
https://codereview.webrtc.org/1227163003
https://codereview.webrtc.org/1227203003
https://codereview.webrtc.org/1227213002
https://codereview.webrtc.org/1227893002
https://codereview.webrtc.org/1228793004
https://codereview.webrtc.org/1228803003
https://codereview.webrtc.org/1228823002
https://codereview.webrtc.org/1228823003
https://codereview.webrtc.org/1228843002
https://codereview.webrtc.org/1230693002
https://codereview.webrtc.org/1231713002

The change is being landed as TBR to all the folks who reviewed the above.

BUG=chromium:81439
TEST=none
R=andrew@webrtc.org, pbos@webrtc.org
TBR=aluebs, andrew, asapersson, henrika, hlundin, jan.skoglund, kwiberg, minyue, pbos, pthatcher

Review URL: https://codereview.webrtc.org/1230503003 .

Cr-Commit-Position: refs/heads/master@{#9768}
2015-08-24 21:52:45 +00:00
bloch
ee66016930 Added IsInBeam to mock_nonlinear_beamformer.h
Review URL: https://codereview.webrtc.org/1262853003

Cr-Commit-Position: refs/heads/master@{#9655}
2015-07-30 00:24:42 +00:00
pkasting
b297c5a01f Miscellaneous changes split from https://codereview.webrtc.org/1230503003 .
These are mostly trivial changes and are separated out just to reduce the
diff on that change to the minimum possible.

Note explanatory comments on patch set 1.

BUG=none
TEST=none

Review URL: https://codereview.webrtc.org/1235643003

Cr-Commit-Position: refs/heads/master@{#9617}
2015-07-22 22:17:26 +00:00
bloch
2981945bcf Moved arrray_util include to beamformer.h
Review URL: https://codereview.webrtc.org/1244813003

Cr-Commit-Position: refs/heads/master@{#9604}
2015-07-20 20:22:27 +00:00
bloch
1adbacb19d Adding method IsInBeam to beamformer class.
This was previously reviewed at:
https://webrtc-codereview.appspot.com/53729004/

Review URL: https://codereview.webrtc.org/1211613005

Cr-Commit-Position: refs/heads/master@{#9517}
2015-06-29 23:15:23 +00:00
bloch
ebe7422372 Created SphericalPoint in array_util.h
Review URL: https://codereview.webrtc.org/1211703002

Cr-Commit-Position: refs/heads/master@{#9507}
2015-06-25 21:24:11 +00:00
Andrew MacDonald
645299d4e0 Add frequency smoothing to postfilter.
Reduces musical noise with minimal impact on interferer suppression.

This also unifies the treatment of "mean bins". The "end" bin is now
inclusive in the mean range as with the "start" bin.

Corrects interpretation of quantile.

BUG=chromium:490477
R=aluebs@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/50939004

Cr-Commit-Position: refs/heads/master@{#9317}
2015-05-28 20:10:32 +00:00
Alejandro Luebs
8db8069660 Change high frequency correction range
From 6kHz-6.5kHz to 3kHz-5kHz. Previous range had unreliable mask values, letting high frequencies from all directions through. The new range is wider and lower, which results in better estimates.

R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/47089004

Cr-Commit-Position: refs/heads/master@{#9213}
2015-05-19 01:19:39 +00:00
Andrew MacDonald
cb05b72eb2 Add WAV and arbitrary geometry support to nlbf test.
This adds functionality from audioproc_float. The geometry parsing code
is now shared from test_utils.h. I removed the "mic_spacing" flag from
audioproc_float because it's a redundancy that I suspect isn't very
useful.

Includes a cleanup of the audio_processing test utils. They're now
packaged in targets, with the protobuf-using ones split out to avoid
requiring users to depend on protobufs.

pcm_utils is no longer needed and removed.

The primary motivation for this CL is that AudioProcessing currently
doesn't support more than two channels and we'd like a way to pass
more channels to the beamformer.

R=aluebs@webrtc.org, mgraczyk@chromium.org

Review URL: https://webrtc-codereview.appspot.com/50899004

Cr-Commit-Position: refs/heads/master@{#9157}
2015-05-08 05:17:58 +00:00
Michael Graczyk
dfa36058c9 Reparent Nonlinear beamformer under beamforming interface.
R=aluebs@webrtc.org, andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/41269004

Cr-Commit-Position: refs/heads/master@{#8862}
2015-03-25 23:37:33 +00:00
mgraczyk@chromium.org
0f663de2ec Rename Beamformer to NonlinearBeamformer.
R=aluebs@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/42359004

Cr-Commit-Position: refs/heads/master@{#8710}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8710 4adac7df-926f-26a2-2b94-8c16560cd09d
2015-03-13 00:14:18 +00:00
aluebs@webrtc.org
1d88394bcb Add support for arbitrary array geometries in Beamformer
R=andrew@webrtc.org, mgraczyk@chromium.org

Review URL: https://webrtc-codereview.appspot.com/38299004

Cr-Commit-Position: refs/heads/master@{#8621}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8621 4adac7df-926f-26a2-2b94-8c16560cd09d
2015-03-05 20:39:20 +00:00
aluebs@webrtc.org
3aca0b0b31 Add 48kHz support to Beamformer
Doing something similar for the band 16-24kHz to what is done for the band 8-16kHz
Tested for 32kHz sample rate and the output is bitexact with how it was before this CL.

BUG=webrtc:3146
R=andrew@webrtc.org, kwiberg@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/35159004

Cr-Commit-Position: refs/heads/master@{#8522}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8522 4adac7df-926f-26a2-2b94-8c16560cd09d
2015-02-26 21:53:00 +00:00
kwiberg@webrtc.org
00b8f6b364 Use base/scoped_ptr.h; system_wrappers/interface/scoped_ptr.h is going away
BUG=
R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/36229004

Cr-Commit-Position: refs/heads/master@{#8517}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8517 4adac7df-926f-26a2-2b94-8c16560cd09d
2015-02-26 14:43:50 +00:00
aluebs@webrtc.org
661af50dd5 Small Beamformer optimization
* Don't use ConjugateDotProduct to calculate the norm.
* Only resize Matrix when needed.

This makes the Beamformer run in 93.6% the original time.
The error between the new and original output is really small and is caused by the new norm calculation.

R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/37339004

Cr-Commit-Position: refs/heads/master@{#8438}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8438 4adac7df-926f-26a2-2b94-8c16560cd09d
2015-02-19 19:02:51 +00:00
aluebs@webrtc.org
27669f320b Apply good settings to Beamformer
R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/33219004

Cr-Commit-Position: refs/heads/master@{#8398}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8398 4adac7df-926f-26a2-2b94-8c16560cd09d
2015-02-17 19:24:37 +00:00
aluebs@webrtc.org
92a19bcbd7 Simplify mask calculation
There are only 2 things that prevent the output to be bit-exact:
* The zero initialization of the postfilter_mask_ and high_pass_postfilter_mask_, which only afects the first blocks.
* The re-tuning of the target presence estimation, since only the bins between low_average_start_bin_ and high_average_end_bin_ are of interest.
This latter was not taken into account before.

R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/35139004

Cr-Commit-Position: refs/heads/master@{#8368}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8368 4adac7df-926f-26a2-2b94-8c16560cd09d
2015-02-13 19:38:22 +00:00
aluebs@webrtc.org
5d608955cf Fix bug when there are no blocks in a chunk in Beamformer
R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/37119004

Cr-Commit-Position: refs/heads/master@{#8321}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8321 4adac7df-926f-26a2-2b94-8c16560cd09d
2015-02-11 00:48:55 +00:00
aluebs@webrtc.org
d35a5c3506 Make ChannelBuffer aware of frequency bands
Now the ChannelBuffer has 2 separate arrays, one for the full-band data and one for the splitted one. The corresponding accessors are added to the ChannelBuffer.
This is done to avoid having to refresh the bands pointers in AudioBuffer. It will also allow us to have a general accessor like data()[band][channel][sample].
All the files using the ChannelBuffer needed to be re-factored.
Tested with modules_unittests, common_audio_unittests, audioproc, audioproc_f, voe_cmd_test.

R=andrew@webrtc.org, kwiberg@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/36999004

Cr-Commit-Position: refs/heads/master@{#8318}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8318 4adac7df-926f-26a2-2b94-8c16560cd09d
2015-02-10 22:52:43 +00:00
aluebs@webrtc.org
91ba79ae3f Make sure that the norms are positive in Beamformer
This has a bit exact output, but is just to be sure that there are no nummerical errors when the covariance matrices are nearly singular.

R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/39019004

Cr-Commit-Position: refs/heads/master@{#8316}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8316 4adac7df-926f-26a2-2b94-8c16560cd09d
2015-02-10 22:38:18 +00:00