Sergey Silkin 2d1fa4713f Use MediaCodec API keys and values directly
Replace locally-defined keys and values with constants from MediaCodec API (MediaFormat.KEY_..., etc). Value of a constant field is resolved at compile time according to 13.1.1 [1]. I.e., it is safe to reference a constant field not available in older API (MediaCodec API ignores unrecognized MediaFormat.KEY_ values).

[1] https://docs.oracle.com/javase/specs/jls/se20/html/jls-13.html#jls-13.1

Bug: none
Change-Id: I3c63cfd67cc22db1b957f908508b434d36d88806
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/298940
Commit-Queue: Sergey Silkin <ssilkin@webrtc.org>
Reviewed-by: Linus Nilsson <lnilsson@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#39668}
2023-03-24 13:59:54 +00:00
..
2022-06-16 15:55:09 +00:00
2023-01-16 14:36:06 +00:00
2022-03-31 10:48:31 +00:00

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/.