talk/app/webrtc/java/jni/androidvideocapturer_jni.h

/*
 * libjingle
 * Copyright 2015 Google Inc.
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 * Redistribution and use in source and binary forms, with or without
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 *  2. Redistributions in binary form must reproduce the above copyright notice,
 *     this list of conditions and the following disclaimer in the documentation
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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#ifndef TALK_APP_WEBRTC_JAVA_JNI_ANDROIDVIDEOCAPTURER_JNI_H_
#define TALK_APP_WEBRTC_JAVA_JNI_ANDROIDVIDEOCAPTURER_JNI_H_

#include <string>

#include "talk/app/webrtc/androidvideocapturer.h"
#include "talk/app/webrtc/java/jni/jni_helpers.h"
#include "webrtc/base/thread_checker.h"

namespace webrtc_jni {

class JavaCaptureProxy;

// AndroidVideoCapturerJni implements AndroidVideoCapturerDelegate.
// The purpose of the delegate is to hide the JNI specifics from the C++ only
// AndroidVideoCapturer.
class AndroidVideoCapturerJni : public webrtc::AndroidVideoCapturerDelegate {
 public:
  static int SetAndroidObjects(JNIEnv* jni, jobject appliction_context);
  AndroidVideoCapturerJni(JNIEnv* jni, jobject j_video_capturer);
  ~AndroidVideoCapturerJni();

  bool Init(jstring device_name);

  void Start(int width, int height, int framerate,
             webrtc::AndroidVideoCapturer* capturer) override;
  void Stop() override;

  std::string GetSupportedFormats() override;

 private:
  JNIEnv* jni();
  void DeInit();

  const ScopedGlobalRef<jobject> j_capturer_global_;
  const ScopedGlobalRef<jclass> j_video_capturer_class_;
  const ScopedGlobalRef<jclass> j_observer_class_;
  jobject j_frame_observer_;

  rtc::ThreadChecker thread_checker_;

  // The proxy is a valid pointer between calling Start and Stop.
  // It destroys itself when Java VideoCapturerAndroid has been stopped.
  JavaCaptureProxy* proxy_;

  static jobject application_context_;

  DISALLOW_COPY_AND_ASSIGN(AndroidVideoCapturerJni);
};

}  // namespace webrtc_jni

#endif  // TALK_APP_WEBRTC_JAVA_JNI_ANDROIDVIDEOCAPTURER_JNI_H_