CameraEnumerationAndroid: Add getSupportedFormats() implementation using android.hardware.camera2

talk/app/webrtc/java/jni/classreferenceholder.cc

 /*
  * libjingle
  * Copyright 2015 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 54 matching lines @@
   LoadClass(jni, "java/nio/ByteBuffer");
   LoadClass(jni, "org/webrtc/AudioTrack");
   LoadClass(jni, "org/webrtc/DataChannel");
   LoadClass(jni, "org/webrtc/DataChannel$Buffer");
   LoadClass(jni, "org/webrtc/DataChannel$Init");
   LoadClass(jni, "org/webrtc/DataChannel$State");
   LoadClass(jni, "org/webrtc/IceCandidate");
 #if defined(ANDROID) && !defined(WEBRTC_CHROMIUM_BUILD)
   LoadClass(jni, "android/graphics/SurfaceTexture");
   LoadClass(jni, "org/webrtc/CameraEnumerator");
+  LoadClass(jni, "org/webrtc/Camera2Enumerator");

[tommi, 2015/09/01 12:48:59]

Should we do this an all versions or should we have a version check here?

[magjed_webrtc, 2015/09/01 14:42:44]

The version check is in Camera2Enumerator, so it will be catch-22 for native
code that wants to ask if Camera2Enumerator is supported, i.e. we need to load
the class in order for native code to query Camera2Enumerator.isSupported().

   LoadClass(jni, "org/webrtc/CameraEnumerationAndroid");
   LoadClass(jni, "org/webrtc/VideoCapturerAndroid");
   LoadClass(jni, "org/webrtc/VideoCapturerAndroid$NativeObserver");
   LoadClass(jni, "org/webrtc/EglBase");
   LoadClass(jni, "org/webrtc/MediaCodecVideoEncoder");
   LoadClass(jni, "org/webrtc/MediaCodecVideoEncoder$OutputBufferInfo");
   LoadClass(jni, "org/webrtc/MediaCodecVideoEncoder$VideoCodecType");
   LoadClass(jni, "org/webrtc/MediaCodecVideoDecoder");
   LoadClass(jni, "org/webrtc/MediaCodecVideoDecoder$DecoderOutputBufferInfo");
   LoadClass(jni, "org/webrtc/MediaCodecVideoDecoder$VideoCodecType");
@@ skipping 55 matching lines @@
   CHECK(inserted) << "Duplicate class name: " << name;
 }
 
 // Returns a global reference guaranteed to be valid for the lifetime of the
 // process.
 jclass FindClass(JNIEnv* jni, const char* name) {
   return g_class_reference_holder->GetClass(name);
 }
 
 }  // namespace webrtc_jni