Update to m125. (#119)

Use M125 as the latest version and migrate historical patches to m125

Patches Group:

## 1. Update README.md
b6c65fc
* Add Apache-2.0 license and some note to README.md. (#9)
* Updated readme detailing changes from original (#42)
* Adding membrane framework (#51)
* Updated readme (#83)

## 2. Audio Device Optimization
7454824
* allow listen-only mode in AudioUnit, adjust when category changes
(#2)
* release mic when category changes
(#5)
* Change defaults to iOS defaults
(#7)
* Sync audio session config
(#8)
* feat: support bypass voice processing for iOS.
(#15)
* Remove MacBookPro audio pan right code
(#22)
* fix: Fix can't open mic alone when built-in AEC is enabled.
(#29)
* feat: add audio device changes detect for windows.
(#41)
* fix Linux compile (#47)
* AudioUnit: Don't rely on category switch for mic indicator to turn off
(#52)
* Stop recording on mute (turn off mic indicator)
(#55)
* Cherry pick audio selection from m97 release
(#35)
* [Mac] Allow audio device selection
(#21)
* RTCAudioDeviceModule.outputDevice / inputDevice getter and setter
(#80)
* Allow custom audio processing by exposing AudioProcessingModule
(#85)
* Expose audio sample buffers for Android
(#89)
* feat: add external audio processor for android.
(#103)
* android: make audio output attributes modifiable
(#118)
* Fix external audio processor sample rate calculation
(#108)
* Expose remote audio sample buffers on RTCAudioTrack
(#84)
* Fix memory leak when creating audio CMSampleBuffer
#86

## 3. Simulcast/SVC support for iOS/Android.
b0b9fe9
    
- Simulcast support for iOS SDK (#4)
- Support for simulcast in Android SDK (#3)
- include simulcast headers for mac also (#10)
- Fix simulcast using hardware encoder on Android (#48)
- Add scalabilityMode support for AV1/VP9. (#90)

## 4. Android improvements.
9aaaab5
- Start/Stop receiving stream method for VideoTrack (#25)
- Properly remove observer upon deconstruction (#26)
- feat: Expose setCodecPreferences/getCapabilities for android. (#61)
- fix: add WrappedVideoDecoderFactory.java. (#74)

## 5. Darwin improvements
a13ea17
- [Mac/iOS] feat: Add RTCYUVHelper for darwin. (#28)
- Cross-platform `RTCMTLVideoView` for both iOS / macOS (#40)
- rotationOverride should not be assign (#44)
- [ObjC] Expose properties / methods required for AV1 codec support
(#60)
- Workaround: Render PixelBuffer in RTCMTLVideoView (#58)
- Improve iOS/macOS H264 encoder (#70)
- fix: fix video encoder not resuming correctly upon foregrounding
(#75).
- add PrivacyInfo.xcprivacy to darwin frameworks. (#112)
- Add NSPrivacyCollectedDataTypes key to xcprivacy file (#114)
- Thread-safe `RTCInitFieldTrialDictionary` (#116)
- Set RTCCameraVideoCapturer initial zoom factor (#121)
- Unlock configuration before starting capture session (#122)

## 6. Desktop Capture for macOS.
841d78f
- [Mac] feat: Support screen capture for macOS. (#24) (#36)
- fix: Get thumbnails asynchronously. (#37)
- fix: Use CVPixelBuffer to build DesktopCapture Frame, fix the crash
caused by non-CVPixelBuffer frame in RTCVideoEncoderH264 that cannot be
cropped. (#63)
- Fix the crash when setting the fps of the virtual camera. (#62)

## 7. Frame Cryptor Support.
fc08745
- feat: Frame Cryptor (aes gcm/cbc). (#54)
- feat: key ratchet/derive. (#66)
- fix: skip invalid key when decryption failed. (#81)
- Improve e2ee, add setSharedKey to KeyProvider. (#88)
- add failure tolerance for framecryptor. (#91)
- fix h264 freeze. (#93)
- Fix/send frame cryptor events from signaling thread (#95)
- more improvements for E2EE. (#96)
- remove too verbose logs (#107)
- Add key ring size to keyProviderOptions. (#109)

## 8. Other improvements.
eed6c8a
- Added yuv_helper (#57)
- ABGRToI420, ARGBToI420 & ARGBToRGB24 (#65)
- more yuv wrappers (#87)
- Fix naming for yuv helper (#113)
- Fix missing `RTC_OBJC_TYPE` macros (#100)

---------

Co-authored-by: Hiroshi Horie <548776+hiroshihorie@users.noreply.github.com>
Co-authored-by: David Zhao <dz@livekit.io>
Co-authored-by: davidliu <davidliu@deviange.net>
Co-authored-by: Angelika Serwa <angelika.serwa@gmail.com>
Co-authored-by: Théo Monnom <theo.monnom@outlook.com>

.gitignore

@@ -72,3 +72,9 @@
 /xcodebuild
 /.vscode
 !webrtc/*
+/tmp.patch
+/out-release
+/out-debug
+/node_modules
+/libwebrtc
+/args.txt

NOTICE

@@ -0,0 +1,26 @@
+###################################################################################
+
+The following modifications follow Apache License 2.0 from shiguredo.
+
+https://github.com/webrtc-sdk/webrtc/commit/dfec53e93a0a1cb93f444caf50f844ec0068c7b7
+https://github.com/webrtc-sdk/webrtc/commit/403b4678543c5d4ac77bd1ea5753c02637b3bb89
+https://github.com/webrtc-sdk/webrtc/commit/77d5d685a90fb4bded17835ae72ec6671b26d696
+
+Apache License 2.0
+
+Copyright 2019-2021, Wandbox LLC (Original Author)
+Copyright 2019-2021, Shiguredo Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+#####################################################################################

README.md

@@ -1,32 +1,47 @@
-**WebRTC is a free, open software project** that provides browsers and mobile
-applications with Real-Time Communications (RTC) capabilities via simple APIs.
-The WebRTC components have been optimized to best serve this purpose.
+# WebRTC-SDK
 
-**Our mission:** To enable rich, high-quality RTC applications to be
-developed for the browser, mobile platforms, and IoT devices, and allow them
-all to communicate via a common set of protocols.
+This repository contains a fork of WebRTC from Google with various improvements.
 
-The WebRTC initiative is a project supported by Google, Mozilla and Opera,
-amongst others.
+## Main changes
 
-### Development
+### All
 
-See [here][native-dev] for instructions on how to get started
-developing with the native code.
+- Dynamically acquire decoder to mitigate decoder limitations [#25](https://github.com/webrtc-sdk/webrtc/pull/25)
+- Support for video simulcast with hardware & software encoders [patch](https://github.com/webrtc-sdk/webrtc/commit/ee030264e2274a2c90548a99b448782049e48fb4)
+- Frame cryptor support (for end-to-end encryption) [patch](https://github.com/webrtc-sdk/webrtc/commit/3a2c008529a15fecde5f979a6ebb75c05463d45e)
 
-[Authoritative list](native-api.md) of directories that contain the
-native API header files.
+### Android
 
-### More info
+- WrappedVideoDecoderFactory [#74](https://github.com/webrtc-sdk/webrtc/pull/74)
 
- * Official web site: http://www.webrtc.org
- * Master source code repo: https://webrtc.googlesource.com/src
- * Samples and reference apps: https://github.com/webrtc
- * Mailing list: http://groups.google.com/group/discuss-webrtc
- * Continuous build: https://ci.chromium.org/p/webrtc/g/ci/console
- * [Coding style guide](g3doc/style-guide.md)
- * [Code of conduct](CODE_OF_CONDUCT.md)
- * [Reporting bugs](docs/bug-reporting.md)
- * [Documentation](g3doc/sitemap.md)
+### iOS / Mac
 
-[native-dev]: https://webrtc.googlesource.com/src/+/main/docs/native-code/
+- Sane audio handling [patch](https://github.com/webrtc-sdk/webrtc/commit/272127d457ab48e36241e82549870405864851f6)
+  - Do not acquire microphone/permissions unless actively publishing audio
+  - Abililty to bypass voice processing on iOS
+  - Remove hardcoded limitation of outputting only to right speaker on MacBook Pro
+- Desktop capture for Mac [patch](https://github.com/webrtc-sdk/webrtc/commit/8e832d1163644ab504412c9b8f3ba8510d9890d6)
+
+### Windows
+
+- Fixed unable to acquire Mic when built-in AEC is enabled [#29](https://github.com/webrtc-sdk/webrtc/pull/29)
+
+## LICENSE
+
+- [Google WebRTC](https://chromium.googlesource.com/external/webrtc.git), is licensed under [BSD license](/LICENSE).
+
+- Contains patches from [shiguredo-webrtc-build](https://github.com/shiguredo-webrtc-build), licensed under [Apache 2.0](/NOTICE).
+
+- Contains changes from LiveKit, licensed under Apache 2.0.
+
+## Who is using this project
+
+- [flutter-webrtc](https://github.com/flutter-webrtc/flutter-webrtc)
+
+- [LiveKit](https://github.com/livekit)
+
+- [Membrane Framework](https://github.com/membraneframework/membrane_rtc_engine)
+
+- [Louper](https://louper.io)
+
+Are you using WebRTC SDK in your framework or app? Feel free to open a PR and add yourself!

api/BUILD.gn

@@ -368,6 +368,7 @@ rtc_library("libjingle_peerconnection_api") {
     "video:encoded_image",
     "video:video_bitrate_allocator_factory",
     "video:video_frame",
+    "video:yuv_helper",
     "video:video_rtp_headers",
     "video_codecs:video_codecs_api",
 

api/crypto/BUILD.gn

@@ -16,6 +16,24 @@ group("crypto") {
   ]
 }
 
+rtc_library("frame_crypto_transformer") {
+  visibility = [ "*" ]
+  sources = [
+    "frame_crypto_transformer.cc",
+    "frame_crypto_transformer.h",
+  ]
+
+  deps = [
+   "//api:frame_transformer_interface",
+  ]
+
+  if (rtc_build_ssl) {
+    deps += [ "//third_party/boringssl" ]
+  } else {
+    configs += [ ":external_ssl_library" ]
+  }
+}
+
 rtc_library("options") {
   visibility = [ "*" ]
   sources = [