Listen to the audio focus event for MSE/EME

media/base/android/media_player_bridge.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/base/android/media_player_bridge.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/basictypes.h"
 #include "base/logging.h"
@@ skipping 33 matching lines @@
       hide_url_log_(hide_url_log),
       width_(0),
       height_(0),
       can_pause_(true),
       can_seek_forward_(true),
       can_seek_backward_(true),
       is_surface_in_use_(false),
       volume_(-1.0),
       allow_credentials_(allow_credentials),
       weak_factory_(this) {
-  listener_.reset(new MediaPlayerListener(base::MessageLoopProxy::current(),
-                                          weak_factory_.GetWeakPtr()));
 }
 
 MediaPlayerBridge::~MediaPlayerBridge() {
   if (!j_media_player_bridge_.is_null()) {
     JNIEnv* env = base::android::AttachCurrentThread();
     CHECK(env);
     Java_MediaPlayerBridge_destroy(env, j_media_player_bridge_.obj());
   }
   Release();
 }
@@ skipping 31 matching lines @@
 void MediaPlayerBridge::CreateJavaMediaPlayerBridge() {
   JNIEnv* env = base::android::AttachCurrentThread();
   CHECK(env);
 
   j_media_player_bridge_.Reset(Java_MediaPlayerBridge_create(
       env, reinterpret_cast<intptr_t>(this)));
 
   if (volume_ >= 0)
     SetVolume(volume_);
 
-  SetMediaPlayerListener();
+  AttachListener(j_media_player_bridge_.obj());

[xhwang, 2014/10/14 18:23:30]

Where do we detach listener?

[qinmin, 2014/10/14 21:55:51]

good catch, should be in release() call. Fixed.

 }
 
 void MediaPlayerBridge::SetJavaMediaPlayerBridge(
     jobject j_media_player_bridge) {
   JNIEnv* env = base::android::AttachCurrentThread();
   CHECK(env);
 
   j_media_player_bridge_.Reset(env, j_media_player_bridge);
 }
 
 base::android::ScopedJavaLocalRef<jobject> MediaPlayerBridge::
     GetJavaMediaPlayerBridge() {
   base::android::ScopedJavaLocalRef<jobject> j_bridge(
       j_media_player_bridge_);
   return j_bridge;
 }
 
-void MediaPlayerBridge::SetMediaPlayerListener() {
-  jobject j_context = base::android::GetApplicationContext();
-  DCHECK(j_context);
-
-  listener_->CreateMediaPlayerListener(j_context, j_media_player_bridge_.obj());
-}
-
 void MediaPlayerBridge::SetDuration(base::TimeDelta duration) {
   duration_ = duration;
 }
 
 void MediaPlayerBridge::SetVideoSurface(gfx::ScopedJavaSurface surface) {
   if (j_media_player_bridge_.is_null()) {
     if (surface.IsEmpty())
       return;
     Prepare();
   }
@@ skipping 240 matching lines @@
   time_update_timer_.Stop();
   if (prepared_)
     pending_seek_ = GetCurrentTime();
   prepared_ = false;
   pending_play_ = false;
   is_surface_in_use_ = false;
   SetVideoSurface(gfx::ScopedJavaSurface());
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_MediaPlayerBridge_release(env, j_media_player_bridge_.obj());
   j_media_player_bridge_.Reset();
-  listener_->ReleaseMediaPlayerListenerResources();
 }
 
 void MediaPlayerBridge::SetVolume(double volume) {
   if (j_media_player_bridge_.is_null()) {
     volume_ = volume;
     return;
   }
 
   JNIEnv* env = base::android::AttachCurrentThread();
   CHECK(env);
   Java_MediaPlayerBridge_setVolume(
       env, j_media_player_bridge_.obj(), volume);
 }
 
 void MediaPlayerBridge::OnVideoSizeChanged(int width, int height) {
   width_ = width;
   height_ = height;
-  manager()->OnVideoSizeChanged(player_id(), width, height);
-}
-
-void MediaPlayerBridge::OnMediaError(int error_type) {
-  manager()->OnError(player_id(), error_type);
-}
-
-void MediaPlayerBridge::OnBufferingUpdate(int percent) {
-  manager()->OnBufferingUpdate(player_id(), percent);
+  MediaPlayerAndroid::OnVideoSizeChanged(width, height);
 }
 
 void MediaPlayerBridge::OnPlaybackComplete() {
   time_update_timer_.Stop();
-  manager()->OnPlaybackComplete(player_id());
+  MediaPlayerAndroid::OnPlaybackComplete();
 }
 
 void MediaPlayerBridge::OnMediaInterrupted() {
   time_update_timer_.Stop();
-  manager()->OnMediaInterrupted(player_id());
-}
-
-void MediaPlayerBridge::OnSeekComplete() {
-  manager()->OnSeekComplete(player_id(), GetCurrentTime());
+  MediaPlayerAndroid::OnMediaInterrupted();
 }
 
 void MediaPlayerBridge::OnMediaPrepared() {
   if (j_media_player_bridge_.is_null())
     return;
 
   prepared_ = true;
   duration_ = GetDuration();
 
   // If media player was recovered from a saved state, consume all the pending
@@ skipping 103 matching lines @@
 
 GURL MediaPlayerBridge::GetFirstPartyForCookies() {
   return first_party_for_cookies_;
 }
 
 bool MediaPlayerBridge::IsSurfaceInUse() const {
   return is_surface_in_use_;
 }
 
 }  // namespace media