13849 Commits

Author SHA1 Message Date
hbos
75c8fb4b2c DataChannelInterface default impl of [messages/bytes]_[sent/received].
The default implementations are provided as to not break Chromium mocks,
as soon as we have done a successful roll they should be updated and the
default implementations removed.

TBR=hta@webrtc.org, deadbeef@webrtc.org
NOTRY=True
BUG=chromium:654927

Review-Url: https://codereview.webrtc.org/2414613003
Cr-Commit-Position: refs/heads/master@{#14617}
2016-10-12 21:48:20 +00:00
hbos
84ffdee879 DataChannel[Interface]::[message/bytes]_[sent/received]() added.
These are required for the RTCDataChannelStats[1] that will be collected
in a follow-up CL.

[1] https://w3c.github.io/webrtc-stats/#dcstats-dict*

BUG=chromium:654927, chromium:627816

Review-Url: https://codereview.webrtc.org/2413803002
Cr-Commit-Position: refs/heads/master@{#14616}
2016-10-12 21:14:45 +00:00
erikchen
73fdc317b2 Several fixes to screen_capturer_mac.
Make sure that the appropriate run loop source gets added/removed. More clean up
to remove unnecessary functions and suppress deprecated declaration warnings.

BUG=webrtc:6029

Review-Url: https://codereview.webrtc.org/2417603002
Cr-Commit-Position: refs/heads/master@{#14615}
2016-10-12 19:24:27 +00:00
ossu
e280cdeb74 Voe::Channel: Turned GetPlayoutFrequency into GetRtpTimestampRateHz.
This gets rid of a bit of codec-specific code in VoE.

BUG=webrtc:5805

Review-Url: https://codereview.webrtc.org/2355483003
Cr-Commit-Position: refs/heads/master@{#14614}
2016-10-12 18:04:16 +00:00
henrika
872f614111 Android audio playout now supports non-call media streams.
The default (preferred) stream type for output audio is STREAM_VOICE_CALL since the WebRTC stack is mainly intended for VoIP calls. But if the user wants to run in another mode than COMM mode, we now accept it and change the stream type to STREAM_MUSIC instead. It can e.g. be suitable for applications that does not record audio or if a call shall be casted to a Chromecast device.

The solution is somewhat experimental.

NOTRY=TRUE

BUG=webrtc:4767

Review-Url: https://codereview.webrtc.org/2411263003
Cr-Commit-Position: refs/heads/master@{#14613}
2016-10-12 15:11:48 +00:00
aleloi
116ec6da50 Implemented further mixer interface change suggestions from https://codereview.webrtc.org/2386383003/
Changed mixability status into AddSource/RemoveSource. Added 'ssrc()'
method to the MixerSource interface. Removed unnecessary member 'num_audio_sources_' and made the mixer be refcounted.

BUG=webrtc:6346
NOTRY=True

Review-Url: https://codereview.webrtc.org/2408683002
Cr-Commit-Position: refs/heads/master@{#14612}
2016-10-12 13:07:13 +00:00
minyue
7e30432b36 Hooking up audio network adaptor to VoE.
BUG=webrtc:6303

Review-Url: https://codereview.webrtc.org/2390883004
Cr-Commit-Position: refs/heads/master@{#14611}
2016-10-12 12:01:01 +00:00
solenberg
917d4e1e71 Removed the legacy behavior of stopping playout when setting new receive codecs.
BUG=webrtc:4690

Review-Url: https://codereview.webrtc.org/2409483003
Cr-Commit-Position: refs/heads/master@{#14610}
2016-10-12 10:20:34 +00:00
aleloi
e97974d203 Cleanup of the mixer interface.
This implements some of the suggestions in https://codereview.webrtc.org/2386383003/, namely

* Removing anonymous mixing.
* Removing the volume meter.

BUG=webrtc:6346

Review-Url: https://codereview.webrtc.org/2402283003
Cr-Commit-Position: refs/heads/master@{#14609}
2016-10-12 10:06:34 +00:00
peah
73a28ee066 The AudioProcessing class is used as an interface
to the functionality in the audio processing module.
Therefore, it should be a pure interface.
This CL ensures that is the case.

BUG=webrtc:6515

Review-Url: https://codereview.webrtc.org/2406193002
Cr-Commit-Position: refs/heads/master@{#14608}
2016-10-12 10:01:57 +00:00
aleloi
4b8bfb8ed3 Changed ramping functionality of the AudioMixer.
BUG=webrtc:6346

Review-Url: https://codereview.webrtc.org/2398083005
Cr-Commit-Position: refs/heads/master@{#14607}
2016-10-12 09:15:08 +00:00
asapersson
3ec3da6fc2 Set screenshare.enabled parameter to false when running video_loopback test.
BUG=none

Review-Url: https://codereview.webrtc.org/2413523003
Cr-Commit-Position: refs/heads/master@{#14606}
2016-10-11 23:20:40 +00:00
nicholss
c6ca544295 Using relative path for GN for iOS.
BUG=653594

R=tkchin@webrtc.org

Review-Url: https://codereview.webrtc.org/2393133007
Cr-Commit-Position: refs/heads/master@{#14605}
2016-10-11 23:12:47 +00:00
hbos
c47a0c3ac4 RTCIceCandidatePairStats[1] added.
Note: In this initial CL most stats members are missing. This needs to
be addressed before closing the RTCIceCandidatePairStats bug
(crbug.com/633550).

[1] https://w3c.github.io/webrtc-stats/#candidatepair-dict*

BUG=chromium:633550, chromium:627816

Review-Url: https://codereview.webrtc.org/2390693003
Cr-Commit-Position: refs/heads/master@{#14604}
2016-10-11 21:54:55 +00:00
Zeke Chin
dd0e1e0070 GN: Build iOS framework in build_ios_libs.sh
BUG=webrtc:6372
NOTRY=True
R=kjellander@webrtc.org

Review URL: https://codereview.webrtc.org/2408983002 .

Cr-Commit-Position: refs/heads/master@{#14603}
2016-10-11 20:27:34 +00:00
sprang
e7c338fed4 Reland of "Remove the obsolete enum webrtc::PeerConnectionInterface::IceState." (patchset #1 id:1 of https://codereview.webrtc.org/2402993002/ )
Reason for revert:
Upstream fixes landed.

Original issue's description:
> Revert of "Remove the obsolete enum webrtc::PeerConnectionInterface::IceState." (patchset #1 id:1 of https://codereview.webrtc.org/2361053003/ )
>
> Reason for revert:
> Breaks upstream code.
>
> Original issue's description:
> > Reland of "Remove the obsolete enum webrtc::PeerConnectionInterface::IceState."
> >
> > Original commit https://codereview.webrtc.org/2256663002
> > was reverted by https://codereview.webrtc.org/2290963002 .
> >
> > BUG=webrtc:6299
> > TBR=pthatcher@webrtc.org
> >
> > Committed: https://crrev.com/fc9414ab513941028309d15a2baf711ef38f93a7
> > Cr-Commit-Position: refs/heads/master@{#14584}
>
> TBR=pthatcher@webrtc.org,johan@webrtc.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=webrtc:6299
>
> Committed: https://crrev.com/57cb873707fbcc4864f0ee98129f73e7bef26c1a
> Cr-Commit-Position: refs/heads/master@{#14586}

TBR=pthatcher@webrtc.org,johan@webrtc.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=webrtc:6299

Review-Url: https://codereview.webrtc.org/2411673005
Cr-Commit-Position: refs/heads/master@{#14602}
2016-10-11 16:04:48 +00:00
sprang
716978d075 Revert of Prune connections based on network name. (patchset #3 id:130001 of https://codereview.webrtc.org/2395243005/ )
Reason for revert:
Breaks upstream code.

Original issue's description:
> Prune connections based on network name.
> Previously we prune connections on the same network pointer.
> So if an IPv6 and an IPv4 network are on the same network interface, IPv4 connection won't be pruned even if an IPv6 connection with higher priority becomes writable.
>
> With this change, as long as one connection becomes writable, all connections  having lower priority with the same network name will be pruned.
>
> Also simplify the implementation.
>
> BUG=webrtc:6512
>
> Committed: https://crrev.com/aae2784c1fab9d1510393dec15d76caa574e2da8
> Cr-Commit-Position: refs/heads/master@{#14593}

TBR=skvlad@webrtc.org,honghaiz@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:6512

Review-Url: https://codereview.webrtc.org/2412433003
Cr-Commit-Position: refs/heads/master@{#14601}
2016-10-11 13:43:36 +00:00
aleloi
e89141500a Moved MixerAudioSource and removed audio_mixer_defines.h.
MixerAudioSource is moved to AudioMixerImpl::Source. Structures and methods of the MixerAudioSource interface have been renamed. The RemixFrame method has added checks and is moved to audio_frame_manipulator.h

BUG=webrtc:6346

Review-Url: https://codereview.webrtc.org/2396803004
Cr-Commit-Position: refs/heads/master@{#14600}
2016-10-11 13:18:37 +00:00
henrika
14acf658ad AudioTransport::NeedMorePlayData is no longer called from different threads using OpenSL ES on Android
BUG=webrtc:6476
NOTRY=TRUE

Review-Url: https://codereview.webrtc.org/2410033002
Cr-Commit-Position: refs/heads/master@{#14599}
2016-10-11 13:15:44 +00:00
solenberg
99df6c03c3 Fix bug in DTMF generation where events with level > 36 would be ignored.
BUG=webrtc:2795

Review-Url: https://codereview.webrtc.org/2404183003
Cr-Commit-Position: refs/heads/master@{#14598}
2016-10-11 11:35:40 +00:00
sprang
113bdcadf3 Make sure VideoReceiveStream can be restarted
After calling Start(), doing a Stop() then Start() sequence should bring
the stream back to the original state.

BUG=webrtc:6501

Review-Url: https://codereview.webrtc.org/2407163002
Cr-Commit-Position: refs/heads/master@{#14597}
2016-10-11 10:10:13 +00:00
henrika
defc21e0aa Removes usage of hardware AGC and any related APIs on Android.
Compromise solution where WebRtcAudioUtils.setWebRtcBasedAutomaticGainControl() is marked
as deprecated and where as many APIs as possible that touches the HW AGC are removed. Some basic architecture is saved to ensure that we can restore usage of
the HW AGC if ever required for future devices.

The AppRTCMobile demo does still contain an AGC check box but it is now grayed out.

BUG=b/30387905

Review-Url: https://codereview.webrtc.org/2402883003
Cr-Commit-Position: refs/heads/master@{#14596}
2016-10-11 08:29:16 +00:00
michaelt
e0729c56d3 Add RtcpRttStats to AudioStream
BUG=webrtc:6508

Review-Url: https://codereview.webrtc.org/2402333002
Cr-Commit-Position: refs/heads/master@{#14595}
2016-10-11 07:29:34 +00:00
brandtr
a8b38559a5 Add a FlexfecReceiver class.
This class is split in interface/implementation classes, since it
will be referenced from the Call level. Its purpose is to interface
the erasure code decoder with a new class FlexfecReceiveStream
(for received packets), as well as with the main RTP pipeline (for
recovered packets).

BUG=webrtc:5654

Review-Url: https://codereview.webrtc.org/2392663006
Cr-Commit-Position: refs/heads/master@{#14594}
2016-10-10 23:45:04 +00:00
honghaiz
aae2784c1f Prune connections based on network name.
Previously we prune connections on the same network pointer.
So if an IPv6 and an IPv4 network are on the same network interface, IPv4 connection won't be pruned even if an IPv6 connection with higher priority becomes writable.

With this change, as long as one connection becomes writable, all connections  having lower priority with the same network name will be pruned.

Also simplify the implementation.

BUG=webrtc:6512

Review-Url: https://codereview.webrtc.org/2395243005
Cr-Commit-Position: refs/heads/master@{#14593}
2016-10-10 23:00:49 +00:00
mattdr
8ff52cc7bc Remove useless debugging code
It would be enough to say we're removing EnableSrtpDebugging because
it's never called, but the story is a bit more interesting.

libsrtp's debugging facilities are gated behind the reasonably-named
ENABLE_DEBUGGING macro:

b17c065a8a/srtp/crypto/include/err.h (186)

This code was imported to WebRTC from libjingle, but neither WebRTC or
Chromium ever set ENABLE_DEBUGGING. Even if someone had ever called
EnableSrtpDebugging, it wouldn't have done anything.

BUG=0

Review-Url: https://codereview.webrtc.org/2409513002
Cr-Commit-Position: refs/heads/master@{#14592}
2016-10-10 22:57:00 +00:00
mattdr
8cab52db48 Fix externalhmac.h/.cc to compile with libsrtp 1 and 2
This was missed in the first pass because this code only compiles in
Chromium.

BUG=webrtc:6376

Review-Url: https://codereview.webrtc.org/2407743002
Cr-Commit-Position: refs/heads/master@{#14591}
2016-10-10 22:33:44 +00:00
erikchen
440b4be4b7 Use non-deprecated screen update callbacks.
CGRegisterScreenRefreshCallback (and similar) have been replaced by
CGDisplayStream.

Most of the structure is pretty comparable. The main difference is that a
CGDisplayStream needs to be destroyed asynchronously, potentially after
ScreenCapturerMac has been destroyed. This CL creates a self-owned
DisplayStreamManager which will destroy itself once all streams have been
destroyed.

BUG=webrtc:6029

Review-Url: https://codereview.webrtc.org/2391743004
Cr-Commit-Position: refs/heads/master@{#14590}
2016-10-10 22:18:35 +00:00
erikchen
e606a172d4 Remove deprecated Gestalt methods.
Gestalt has been deprecated since macOS 10.8, and it's always been overkill for
finding the macOS version anyways. uname works fine.

BUG=webrtc:6027

Review-Url: https://codereview.webrtc.org/2391633004
Cr-Commit-Position: refs/heads/master@{#14589}
2016-10-10 18:19:22 +00:00
stefan
41aab327ad Fix delay plot crash in event_log_visualizer.
NOTRY=true
BUG=webrtc:6510

Review-Url: https://codereview.webrtc.org/2410433002
Cr-Commit-Position: refs/heads/master@{#14588}
2016-10-10 15:16:33 +00:00
henrik.lundin
ae0b3338e3 Prep to remove APM-related #defines from voice_engine_configurations.h
Make sure that WEBRTC_VOICE_ENGINE_AGC, WEBRTC_VOICE_ENGINE_ECHO, and
WEBRTC_VOICE_ENGINE_NR are always defined.

BUG=webrtc:6506

Review-Url: https://codereview.webrtc.org/2401393002
Cr-Commit-Position: refs/heads/master@{#14587}
2016-10-10 14:24:58 +00:00
sprang
57cb873707 Revert of "Remove the obsolete enum webrtc::PeerConnectionInterface::IceState." (patchset #1 id:1 of https://codereview.webrtc.org/2361053003/ )
Reason for revert:
Breaks upstream code.

Original issue's description:
> Reland of "Remove the obsolete enum webrtc::PeerConnectionInterface::IceState."
>
> Original commit https://codereview.webrtc.org/2256663002
> was reverted by https://codereview.webrtc.org/2290963002 .
>
> BUG=webrtc:6299
> TBR=pthatcher@webrtc.org
>
> Committed: https://crrev.com/fc9414ab513941028309d15a2baf711ef38f93a7
> Cr-Commit-Position: refs/heads/master@{#14584}

TBR=pthatcher@webrtc.org,johan@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:6299

Review-Url: https://codereview.webrtc.org/2402993002
Cr-Commit-Position: refs/heads/master@{#14586}
2016-10-10 12:59:14 +00:00
ivoc
e0928d8002 Added logging for audio send/receive stream configs.
BUG=webrtc:4741,webrtc:6399

Review-Url: https://codereview.webrtc.org/2353543003
Cr-Commit-Position: refs/heads/master@{#14585}
2016-10-10 12:12:57 +00:00
johan
fc9414ab51 Reland of "Remove the obsolete enum webrtc::PeerConnectionInterface::IceState."
Original commit https://codereview.webrtc.org/2256663002
was reverted by https://codereview.webrtc.org/2290963002 .

BUG=webrtc:6299
TBR=pthatcher@webrtc.org

Review-Url: https://codereview.webrtc.org/2361053003
Cr-Commit-Position: refs/heads/master@{#14584}
2016-10-10 10:26:03 +00:00
kjellander
d36dd499c8 Revert of Make cricket::VideoFrame inherit webrtc::VideoFrame. (patchset #9 id:160001 of https://codereview.webrtc.org/2315663002/ )
Reason for revert:
Breaks compile for Chromium builds:
https://build.chromium.org/p/chromium.webrtc.fyi/builders/Linux%20Builder/builds/10761
https://build.chromium.org/p/chromium.webrtc.fyi/builders/Mac%20Builder/builds/18142

FAILED: obj/remoting/protocol/protocol/webrtc_video_renderer_adapter.o
../../remoting/protocol/webrtc_video_renderer_adapter.cc:110:52: error: no member named 'transport_frame_id' in 'cricket::VideoFrame'
                 weak_factory_.GetWeakPtr(), frame.transport_frame_id(),
                                             ~~~~~ ^
1 error generated.

Please run chromium trybots as described at https://webrtc.org/contributing/#tryjobs-on-chromium-trybots before relanding.

Original issue's description:
> Make cricket::VideoFrame inherit webrtc::VideoFrame. Delete
> all methods but a few constructors. And similarly for the
> subclass cricket::WebRtcVideoFrame.
>
> TBR=tkchin@webrtc.org  # Added an include line
> BUG=webrtc:5682
>
> Committed: https://crrev.com/dda6ec008a0fc8d52e118814fb779032e8931968
> Cr-Commit-Position: refs/heads/master@{#14576}

TBR=perkj@webrtc.org,pthatcher@webrtc.org,pthatcher@chromium.org,tkchin@webrtc.org,nisse@webrtc.org
NOTRY=True
NOPRESUBMIT=True
BUG=webrtc:5682

Review-Url: https://codereview.webrtc.org/2402853002
Cr-Commit-Position: refs/heads/master@{#14583}
2016-10-09 05:21:40 +00:00
Henrik Kjellander
cbfb033f1d MB: Update Android bots after moving to Swarming and client.webrtc.perf
This matches the changes in https://codereview.chromium.org/2395143002/
client.webrtc.fyi section was moved up, unchanged.

BUG=583318
TBR=ehmaldonado@webrtc.org

Review URL: https://codereview.webrtc.org/2405713002 .

Cr-Commit-Position: refs/heads/master@{#14582}
2016-10-09 04:29:11 +00:00
solenberg
9fa49759e5 - Filter data channel codecs based on codec name instead of payload type, which may have been remapped.
- Rename the data codec payload types to end with "PlType" instead of "Id", for consistency.

BUG=webrtc:2795

Review-Url: https://codereview.webrtc.org/2397413002
Cr-Commit-Position: refs/heads/master@{#14581}
2016-10-08 20:02:51 +00:00
magjed
9e31cca8f4 iOS: Fix rotation bug for back camera
The rotation is currently incorrect for the back camera in landscape
mode. The reason is that device rotation needs to be reversed for the
back camera compared to the front camera. The camera sensor can also be
mounted with a specific orientation. So when front camera rotation goes
through: 0->90->180->270, back camera rotation goes in reverse:
180->90->0->270.

BUG=b/31984246,b/30651939

Review-Url: https://codereview.webrtc.org/2401033002
Cr-Commit-Position: refs/heads/master@{#14580}
2016-10-08 09:57:55 +00:00
peah
c19f312f54 This CL adds functionality in the level controller to
receive a signal level to use initially, instead of the
default initial signal level.

The initial form of the CL
(https://codereview.webrtc.org/2254973003/) was reverted
due to down-stream  dependencies. These have been resolved,
but the CL needed to be revised according to the new scheme
for passing parameters to the audio processing module.
Therefore, please review this CL as if it is new.

TBR=aleloi@webrtc.org
BUG=webrtc:6386

Review-Url: https://codereview.webrtc.org/2337083002
Cr-Commit-Position: refs/heads/master@{#14579}
2016-10-07 21:54:15 +00:00
skvlad
11a9cbfa50 Refactoring: move ownership of RtcEventLog from Call to PeerConnection
This CL is a pure refactoring which should not result in any functinal
changes. It moves ownership of the RtcEventLog from webrtc::Call to the
webrtc::PeerConnection object.

This is done so that we can add RtcEventLog support for ICE events -
which will require the TransportController to have a pointer to the
RtcEventLog. PeerConnection is the closest common owner of both Call and
TransportController (through WebRtcSession).

BUG=webrtc:6393

Review-Url: https://codereview.webrtc.org/2353033005
Cr-Commit-Position: refs/heads/master@{#14578}
2016-10-07 18:53:15 +00:00
sprang
0d348d69e6 Avoid race in VideoReceiveStream shutdown
The decoder implementation may have its own thread for asynchrouns
callbacks. We need to stop it (by releasing the decoder) when stopping
the decoder thread, othweise it may call incoming_video_stream_ after
it has been destroyed.

BUG=webrtc:6501

Review-Url: https://codereview.webrtc.org/2402663003
Cr-Commit-Position: refs/heads/master@{#14577}
2016-10-07 15:28:42 +00:00
nisse
dda6ec008a Make cricket::VideoFrame inherit webrtc::VideoFrame. Delete
all methods but a few constructors. And similarly for the
subclass cricket::WebRtcVideoFrame.

TBR=tkchin@webrtc.org  # Added an include line
BUG=webrtc:5682

Review-Url: https://codereview.webrtc.org/2315663002
Cr-Commit-Position: refs/heads/master@{#14576}
2016-10-07 15:16:59 +00:00
minyue
0d382efbdc Cleaning build file for audio network adaptor.
BUG=webrtc:6303

Review-Url: https://codereview.webrtc.org/2399883002
Cr-Commit-Position: refs/heads/master@{#14575}
2016-10-07 14:59:36 +00:00
danilchap
bf369fe3dd Replace rtcp parser in rtc event log handlers.
RTCPUtility is going away.

BUG=webrtc:5260

Review-Url: https://codereview.webrtc.org/2395383002
Cr-Commit-Position: refs/heads/master@{#14574}
2016-10-07 14:40:00 +00:00
kwiberg
05f3ec1356 Fix "left shift of negative value" bug
The values in question are supposed to be able to be negative.

BUG=chromium:653448

Review-Url: https://codereview.webrtc.org/2387333005
Cr-Commit-Position: refs/heads/master@{#14573}
2016-10-07 14:38:54 +00:00
sakal
d2cf1ce8aa Remove legacy Camera2Enumerator.isSupported method.
BUG=webrtc:6390
R=magjed@webrtc.org

Review-Url: https://codereview.webrtc.org/2395403002
Cr-Commit-Position: refs/heads/master@{#14572}
2016-10-07 14:06:10 +00:00
nisse
c7901c6491 Delete macsocketserver.h and related files.
BUG=webrtc:6424

Review-Url: https://codereview.webrtc.org/2369013002
Cr-Commit-Position: refs/heads/master@{#14571}
2016-10-07 12:57:26 +00:00
magjed
df494b0908 Android: Split out EGL rendering from SurfaceViewRenderer to separate class
The purpose is to prepare for a TextureViewRenderer that will share the
EGL rendering code.

Two functional changes are also included:
* The implementation of SurfaceHolder.Callback.surfaceDestroyed will now
  block until the EGL surface is released. This is done in order to
  comply with the documentation that says: "If you have a rendering
  thread that directly accesses the surface, you must ensure that thread
  is no longer touching the Surface before returning from this function."
* We will no longer try to hide render glitches during layout changes.
  This was a lost cause anyway.

BUG=webrtc:6407

Review-Url: https://codereview.webrtc.org/2399463006
Cr-Commit-Position: refs/heads/master@{#14570}
2016-10-07 12:32:43 +00:00
aleloi
36542514f6 Reland of https://codereview.webrtc.org/2396483002/
LOG_T_F macro is not defined for chromium builds.

NOTRY=True
BUG=webrtc:6346
TBR=ivoc@webrtc.org

Review-Url: https://codereview.webrtc.org/2401603003
Cr-Commit-Position: refs/heads/master@{#14569}
2016-10-07 12:28:38 +00:00
aleloi
a485dabc78 Revert of Made MixerAudioSource a pure interface. (patchset #7 id:350001 of https://codereview.webrtc.org/2396483002/ )
Reason for revert:
breaks chromium FYI

Original issue's description:
> Made MixerAudioSource a pure interface.
>
> This required quite a few small changes in the mixing algorithm
> structure, the mixer interface and the mixer unit tests.
>
> BUG=webrtc:6346
>
> Committed: https://crrev.com/2ae5fdff86b784545cbd724de54bb5ffedde1adf
> Cr-Commit-Position: refs/heads/master@{#14567}

TBR=ivoc@webrtc.org,solenberg@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:6346

Review-Url: https://codereview.webrtc.org/2394253003
Cr-Commit-Position: refs/heads/master@{#14568}
2016-10-07 12:04:58 +00:00