text: /*
   *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
   *
   *  Use of this source code is governed by a BSD-style license
   *  that can be found in the LICENSE file in the root of the source
   *  tree. An additional intellectual property rights grant can be found
   *  in the file PATENTS.  All contributing project authors may
   *  be found in the AUTHORS file in the root of the source tree.
   */
  
  #ifndef SDK_ANDROID_SRC_JNI_VIDEO_FRAME_H_
  #define SDK_ANDROID_SRC_JNI_VIDEO_FRAME_H_
  
  #include <jni.h>
  
  #include "api/video/video_frame.h"
  #include "api/video/video_frame_buffer.h"
  #include "api/video/video_rotation.h"
  #include "sdk/android/src/jni/jni_helpers.h"
  
  namespace webrtc {
  namespace jni {
  
  class AndroidVideoBuffer : public VideoFrameBuffer {
   public:
    // Creates a native VideoFrameBuffer from a Java VideoFrame.Buffer.
    static rtc::scoped_refptr<AndroidVideoBuffer> Create(
        JNIEnv* jni,
        const JavaRef<jobject>& j_video_frame_buffer);
  
    // Similar to the Create() above, but adopts and takes ownership of the Java
    // VideoFrame.Buffer. I.e. retain() will not be called, but release() will be
    // called when the returned AndroidVideoBuffer is destroyed.
    static rtc::scoped_refptr<AndroidVideoBuffer> Adopt(
        JNIEnv* jni,
        const JavaRef<jobject>& j_video_frame_buffer);
  
    ~AndroidVideoBuffer() override;
  
    const ScopedJavaGlobalRef<jobject>& video_frame_buffer() const;
  
    // Crops a region defined by |crop_x|, |crop_y|, |crop_width| and
    // |crop_height|. Scales it to size |scale_width| x |scale_height|.
    rtc::scoped_refptr<VideoFrameBuffer> CropAndScale(int crop_x,
                                                      int crop_y,
                                                      int crop_width,
                                                      int crop_height,
                                                      int scale_width,
                                                      int scale_height) override;
  
   protected:
    // Should not be called directly. Adopts the Java VideoFrame.Buffer. Use
    // Create() or Adopt() instead for clarity.
    AndroidVideoBuffer(JNIEnv* jni, const JavaRef<jobject>& j_video_frame_buffer);
  
   private:
    Type type() const override;
    int width() const override;
    int height() const override;
  
    rtc::scoped_refptr<I420BufferInterface> ToI420() override;
  
    const int width_;
    const int height_;
    // Holds a VideoFrame.Buffer.
    const ScopedJavaGlobalRef<jobject> j_video_frame_buffer_;
  };
  
  VideoFrame JavaToNativeFrame(JNIEnv* jni,
                               const JavaRef<jobject>& j_video_frame,
                               uint32_t timestamp_rtp);
  
  // NOTE: Returns a new video frame that has to be released by calling
  // ReleaseJavaVideoFrame.
  ScopedJavaLocalRef<jobject> NativeToJavaVideoFrame(JNIEnv* jni,
                                                     const VideoFrame& frame);
  void ReleaseJavaVideoFrame(JNIEnv* jni, const JavaRef<jobject>& j_video_frame);
  
  int64_t GetJavaVideoFrameTimestampNs(JNIEnv* jni,
                                       const JavaRef<jobject>& j_video_frame);
  
  }  // namespace jni
  }  // namespace webrtc
  
  #endif  // SDK_ANDROID_SRC_JNI_VIDEO_FRAME_H_
  