chromium media中video width &

1.media_player_bridge.cc

void MediaPlayerBridge::OnExternalVideoSurfacePositionChanged(int id , const gfx::RectF& rect)
{
 Java_MediaPlayerBridge_OnExternalVideoSurfacePositionChanged(
        env, j_media_player_bridge_.obj(),id,rect.x(),rect.y(),rect.x()+rect.width(),rect.y()+rect.height());
}

2.browser_media_player_manager.cc

void BrowserMediaPlayerManager::ExternalVideoSurfacePositionChanged(int id, const gfx::RectF& rect)
{
 MediaPlayerAndroid* lastPlayer =  GetPlayer(last_player_id_);
 if(lastPlayer){
      MediaPlayerBridge* lastBridge = static_cast<MediaPlayerBridge*>(lastPlayer);
      //invoke java to remove previous videoview
      if(lastBridge)
          lastBridge->OnExternalVideoSurfacePositionChanged(id,rect);
   }
}

ExternalVideoSurfacePositionChanged()方法被调用

void BrowserMediaPlayerManager::OnNotifyExternalSurface(
    int player_id, bool is_request, const gfx::RectF& rect) {
     //zhangls add
  if (!is_request)
  {
    ExternalVideoSurfacePositionChanged(player_id,rect);
  }
  //end
    }

通过IPC调用　OnExternalSurface

#if defined(VIDEO_HOLE)
    IPC_MESSAGE_FORWARD(MediaPlayerHostMsg_NotifyExternalSurface,
    GetMediaPlayerManager(render_frame_host),                                BrowserMediaPlayerManager::OnNotifyExternalSurface)
#endif  // defined(VIDEO_HOLE)

MSG 在　media_player_messages_android.h 中定义

renderer_media_player_manager.cc 发送消息

#if defined(VIDEO_HOLE)
//1 send
void RendererMediaPlayerManager::RequestExternalSurface(
    int player_id,
    const gfx::RectF& geometry) {
  Send(new MediaPlayerHostMsg_NotifyExternalSurface(
      routing_id(), player_id, true, geometry));
}
//2 send
void RendererMediaPlayerManager::DidCommitCompositorFrame() {
  std::map<int, gfx::RectF> geometry_change;
  RetrieveGeometryChanges(&geometry_change);
  for (std::map<int, gfx::RectF>::iterator it = geometry_change.begin();
       it != geometry_change.end();
       ++it) {
    Send(new MediaPlayerHostMsg_NotifyExternalSurface(
        routing_id(), it->first, false, it->second));
  }
}

调用这两个方法的地方比较多，不在跟踪