Video collected by VideoFileRenderer is first saved on the native heap, then saved to disk during r…

webrtc/sdk/android/src/jni/peerconnection_jni.cc

 /*
  *  Copyright 2013 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.
  */
 
@@ skipping 2217 matching lines @@
 
   int ret = libyuv::I420Scale(
       src_y, j_src_stride_y, src_u, j_src_stride_u, src_v, j_src_stride_v,
       width, height, dst_y, dst_stride_y, dst_u, dst_stride_u, dst_v,
       dst_stride_v, dstWidth, dstHeight, libyuv::kFilterBilinear);
   if (ret) {
     LOG(LS_ERROR) << "Error scaling I420 frame: " << ret;
   }
 }
 
+JOW(jobject, VideoFileRenderer_nativeCreateNativeByteBuffer)
+(JNIEnv* jni, jclass, jint size) {
+  void* new_data = ::operator new(size);
+  jobject byte_buffer = jni->NewDirectByteBuffer(new_data, size);
+  return byte_buffer;
+}
+
+JOW(void, VideoFileRenderer_nativeFreeNativeByteBuffer)
+(JNIEnv* jni, jclass, jobject byte_buffer) {
+  void* data = jni->GetDirectBufferAddress(byte_buffer);
+  ::operator delete(data);
+}
+
 JOW(jstring, MediaStreamTrack_nativeId)(JNIEnv* jni, jclass, jlong j_p) {
   return JavaStringFromStdString(
       jni, reinterpret_cast<MediaStreamTrackInterface*>(j_p)->id());
 }
 
 JOW(jstring, MediaStreamTrack_nativeKind)(JNIEnv* jni, jclass, jlong j_p) {
   return JavaStringFromStdString(
       jni, reinterpret_cast<MediaStreamTrackInterface*>(j_p)->kind());
 }
 
@@ skipping 346 matching lines @@
   reinterpret_cast<RtpReceiverInterface*>(j_rtp_receiver_pointer)
       ->SetObserver(nullptr);
   RtpReceiverObserver* observer =
       reinterpret_cast<RtpReceiverObserver*>(j_observer_pointer);
   if (observer) {
     delete observer;
   }
 }
 
 }  // namespace webrtc_jni