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webrtc/sdk/android
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Jonas Oreland da2fd2a2b2 Fix problem with ipv4 over ipv6 on Android 
This patch fixes a problem with using ipv4 over ipv6
addresses on Android. These addresses are discovered
using 'getifaddr' with interfaces called 'v4-wlan0' or
'v4-rmnet' but the Android API does not report them.

This leads to failure when BasicPortAllocator tries
to bind a socket to the ip-address, making the ipv4
address unusable.

This solution does the following
1) Insert BasicNetworkManager as NetworkBinderInterface
rather than AndroidNetworkManager.

2) When SocketServer calls BindSocketToNetwork,
BasicNetworkManager first lookup the interface name,
and then calls AndroidNetworkManager.

3) AndroidNetworkManager will then first try to bind
using the known ip-addresses, and if it can't find the network
it will instead match the interface names.

The patch has been tested on real android devices, and works fine.
And everything is disabled by default, and is enabled by field trial.

My plan is to rollout the feature, checking that it does not introduce
any problems, and if so, enabled for all.

Bug: webrtc:10707
Change-Id: I7081ba43d4ce17077acfa5fbab44eda127ac3971
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/211003
Commit-Queue: Jonas Oreland <jonaso@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33422}
2021-03-10 16:08:18 +00:00
..
api/org/webrtc Remove unused function VideoDecoder::PrefersLateDecoding. 2021-01-18 14:17:57 +00:00
instrumentationtests Removed _completeFrame since we never allow incomplete frames. 2020-10-28 16:00:27 +00:00
native_api Delete rtc::Callback0 and friends. 2021-02-16 12:41:35 +00:00
native_unittests Fix problem with ipv4 over ipv6 on Android 2021-03-10 16:08:18 +00:00
src Fix problem with ipv4 over ipv6 on Android 2021-03-10 16:08:18 +00:00
tests Use low latency mode on Android O and later. 2020-12-17 10:29:21 +00:00
AndroidManifest.xml Roll chromium_revision 4d95e6c77b..71a0e1904e (776481:782339) 2020-06-26 05:33:14 +00:00
BUILD.gn Add build-id to libjingle_peerconnection_so.so 2021-03-09 20:21:23 +00:00
OWNERS Remove inactive OWNERS. 2020-02-19 13:37:36 +00:00
PRESUBMIT.py Reformat python files checked by pylint (part 1/2). 2020-10-30 10:13:11 +00:00
README Updating android/README. 2018-03-01 20:22:48 +00:00

README 

This directory holds a Java implementation of the webrtc::PeerConnection API, as
well as the JNI glue C++ code that lets the Java implementation reuse the C++
implementation of the same API.

To build the Java API and related tests, make sure you have a WebRTC checkout
with Android specific parts. This can be used for linux development as well by
configuring gn appropriately, as it is a superset of the webrtc checkout:
fetch --nohooks webrtc_android
gclient sync

You also must generate GN projects with:
--args='target_os="android" target_cpu="arm"'

More information on getting the code, compiling and running the AppRTCMobile
app can be found at:
https://webrtc.org/native-code/android/

To use the Java API, start by looking at the public interface of
org.webrtc.PeerConnection{,Factory} and the org.webrtc.PeerConnectionTest.

To understand the implementation of the API, see the native code in src/jni/pc/.