Implement out-of-band video compositing on Android: Step 1

content/browser/android/content_view_core_impl.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 "content/browser/android/content_view_core_impl.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/command_line.h"
 #include "base/json/json_writer.h"
 #include "base/logging.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "cc/layers/layer.h"
 #include "content/browser/android/interstitial_page_delegate_android.h"
 #include "content/browser/android/load_url_params.h"
+#include "content/browser/android/media_player_manager_android.h"
 #include "content/browser/android/sync_input_event_filter.h"
 #include "content/browser/android/touch_point.h"
 #include "content/browser/renderer_host/compositor_impl_android.h"
 #include "content/browser/renderer_host/java/java_bound_object.h"
 #include "content/browser/renderer_host/java/java_bridge_dispatcher_host_manager.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_android.h"
 #include "content/browser/ssl/ssl_host_state.h"
 #include "content/browser/web_contents/interstitial_page_impl.h"
@@ skipping 552 matching lines @@
   ScopedJavaLocalRef<jobject> java_bitmap =
       gfx::ConvertToJavaBitmap(&zoomed_bitmap);
   DCHECK(!java_bitmap.is_null());
 
   Java_ContentViewCore_showDisambiguationPopup(env,
                                                obj.obj(),
                                                rect_object.obj(),
                                                java_bitmap.obj());
 }
 
+void ContentViewCoreImpl::RequestExternalVideoSurface(int player_id) {
+  JNIEnv* env = AttachCurrentThread();
+
+  ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
+  if (obj.is_null())
+    return;
+
+  Java_ContentViewCore_requestExternalVideoSurface(
+      env, obj.obj(), static_cast<jint>(player_id));
+}
+
 gfx::Size ContentViewCoreImpl::GetPhysicalBackingSize() const {
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> j_obj = java_ref_.get(env);
   if (j_obj.is_null())
     return gfx::Size();
   return gfx::Size(
       Java_ContentViewCore_getPhysicalBackingWidthPix(env, j_obj.obj()),
       Java_ContentViewCore_getPhysicalBackingHeightPix(env, j_obj.obj()));
 }
 
@@ skipping 569 matching lines @@
   return web_contents_->ShowingInterstitialPage();
 }
 
 jboolean ContentViewCoreImpl::ConsumePendingRendererFrame(JNIEnv* env,
                                                           jobject obj) {
   bool had_pending_frame = renderer_frame_pending_;
   renderer_frame_pending_ = false;
   return had_pending_frame;
 }
 
+void ContentViewCoreImpl::AttachExternalVideoSurface(JNIEnv* env,
+                                                     jobject obj,
+                                                     jint player_id,
+                                                     jobject jsurface) {
+  RenderViewHostImpl* rvhi = static_cast<RenderViewHostImpl*>(
+      web_contents_->GetRenderViewHost());
+  if (rvhi && rvhi->media_player_manager()) {
+    rvhi->media_player_manager()->AttachExternalVideoSurface(
+        static_cast<int>(player_id), jsurface);
+  }
+}
+
+void ContentViewCoreImpl::DetachExternalVideoSurface(JNIEnv* env,
+                                                     jobject obj,
+                                                     jint player_id) {
+  RenderViewHostImpl* rvhi = static_cast<RenderViewHostImpl*>(
+      web_contents_->GetRenderViewHost());
+  if (rvhi && rvhi->media_player_manager()) {
+    rvhi->media_player_manager()->DetachExternalVideoSurface(
+        static_cast<int>(player_id));
+  }
+}
+
 jboolean ContentViewCoreImpl::IsRenderWidgetHostViewReady(JNIEnv* env,
                                                           jobject obj) {
   RenderWidgetHostViewAndroid* view = GetRenderWidgetHostViewAndroid();
   return view && view->HasValidFrame();
 }
 
 void ContentViewCoreImpl::ExitFullscreen(JNIEnv* env, jobject obj) {
   RenderViewHost* host = web_contents_->GetRenderViewHost();
   host->ExitFullscreen();
 }
@@ skipping 218 matching lines @@
       reinterpret_cast<WebContents*>(native_web_contents),
       reinterpret_cast<ui::WindowAndroid*>(native_window));
   return reinterpret_cast<jint>(view);
 }
 
 bool RegisterContentViewCore(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace content