Android VideoSource: Add adaptOutputFormat function

webrtc/api/android/jni/androidvideotracksource_jni.cc

Index: webrtc/api/android/jni/androidvideotracksource_jni.cc
diff --git a/webrtc/api/android/jni/androidvideotracksource_jni.cc b/webrtc/api/android/jni/androidvideotracksource_jni.cc
index 2d1529938a22079cb5fe66625db0786e9739365c..9b251276b607c87c2de9114ef23d108242691890 100644
--- a/webrtc/api/android/jni/androidvideotracksource_jni.cc
+++ b/webrtc/api/android/jni/androidvideotracksource_jni.cc
@@ -87,4 +87,12 @@ JOW_OBSERVER_METHOD(void, nativeOnOutputFormatRequest)
   source->OnOutputFormatRequest(j_width, j_height, j_fps);
 }
 
+JOW(void, VideoSource_nativeAdaptOutputFormat)

[sakal, 2016/09/20 11:55:03]

I don't feel like this is the file this method belongs in. I think a new file
should be created or it should be place in peerconnection_jni.cc (like some
other miscellaneous method like MediaSource.free).

[magjed_webrtc, 2016/09/20 12:27:40]

I hear you, and I know that this file is only used for
AndroidVideoTrackSourceObserver so far. However, I think this file
(androidvideotracksource_jni.cc) should be used for all AndroidVideoTrackSource
JNI implementation details, and this is one of them. I prefer this over creating
a new file or putting it in the kitchen sink file (peerconnection_jni.cc).

+(JNIEnv* jni, jclass, jlong j_source, jint j_width, jint j_height, jint j_fps) {
+  LOG(LS_INFO) << "VideoSource_nativeAdaptOutputFormat";
+  webrtc::AndroidVideoTrackSource* source =
+      AndroidVideoTrackSourceFromJavaProxy(j_source);
+  source->OnOutputFormatRequest(j_width, j_height, j_fps);

[sakal, 2016/09/20 11:55:03]

This path is also going to be changed in a follow-up CL, right?

[magjed_webrtc, 2016/09/20 12:27:40]

You mean change the function name of OnOutputFormatRequest? Yes, we should do
that. The name is strange, it's not a callback function. I want to wait until we
have removed the deprecated OnOutputFormatRequest before doing that though.

+}
+
 }  // namespace webrtc_jni