content/browser/media/media_web_contents_observer.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/media/media_web_contents_observer.h"
   6
   7 #include "base/memory/scoped_ptr.h"
   8 #include "base/stl_util.h"
   9 #include "content/browser/media/cdm/browser_cdm_manager.h"
  10 #include "content/browser/renderer_host/render_process_host_impl.h"
  11 #include "content/browser/web_contents/web_contents_impl.h"
  12 #include "content/public/browser/render_frame_host.h"
  13 #include "content/public/browser/web_contents.h"
  14 #include "ipc/ipc_message_macros.h"
  15
  16 #if defined(OS_ANDROID)
  17 #include "content/browser/android/media_players_observer.h"
  18 #include "content/browser/media/android/browser_media_player_manager.h"
  19 #include "content/common/media/media_player_messages_android.h"
  20 #include "media/base/android/media_player_android.h"
  21 #endif  // defined(OS_ANDROID)
  22
  23 namespace content {
  24
  25 MediaWebContentsObserver::MediaWebContentsObserver(
  26     WebContents* web_contents)
  27     : WebContentsObserver(web_contents)
  28 {
  29 }
  30
  31 MediaWebContentsObserver::~MediaWebContentsObserver() {
  32 }
  33
  34 void MediaWebContentsObserver::RenderFrameDeleted(
  35     RenderFrameHost* render_frame_host) {
  36 #if defined(OS_ANDROID)
  37   uintptr_t key = reinterpret_cast<uintptr_t>(render_frame_host);
  38   // Always destroy the media players before CDMs because we do not support
  39   // detaching CDMs from media players yet. See http://crbug.com/330324
  40   media_player_managers_.erase(key);
  41
  42   MediaPlayersObserver* audio_observer = GetMediaPlayersObserver();
  43   if (audio_observer)
  44     audio_observer->RenderFrameDeleted(render_frame_host);
  45 #endif
  46   // TODO(xhwang): Currently MediaWebContentsObserver, BrowserMediaPlayerManager
  47   // and BrowserCdmManager all run on browser UI thread. So this call is okay.
  48   // In the future we need to support the case where MediaWebContentsObserver
  49   // get notified on browser UI thread, but BrowserMediaPlayerManager and
  50   // BrowserCdmManager run on a different thread.
  51   BrowserCdmManager* browser_cdm_manager =
  52       BrowserCdmManager::FromProcess(render_frame_host->GetProcess()->GetID());
  53   if (browser_cdm_manager)
  54     browser_cdm_manager->RenderFrameDeleted(render_frame_host->GetRoutingID());
  55 }
  56
  57 #if defined(OS_ANDROID)
  58
  59 bool MediaWebContentsObserver::OnMessageReceived(
  60     const IPC::Message& msg,
  61     RenderFrameHost* render_frame_host) {
  62   if (OnMediaPlayerMessageReceived(msg, render_frame_host))
  63     return true;
  64
  65   if (OnMediaPlayerSetCdmMessageReceived(msg, render_frame_host))
  66     return true;
  67
  68   return false;
  69 }
  70
  71 bool MediaWebContentsObserver::OnMediaPlayerMessageReceived(
  72     const IPC::Message& msg,
  73     RenderFrameHost* render_frame_host) {
  74   bool handled = true;
  75   IPC_BEGIN_MESSAGE_MAP(MediaWebContentsObserver, msg)
  76     IPC_MESSAGE_FORWARD(MediaPlayerHostMsg_EnterFullscreen,
  77                         GetMediaPlayerManager(render_frame_host),
  78                         BrowserMediaPlayerManager::OnEnterFullscreen)
  79     IPC_MESSAGE_FORWARD(MediaPlayerHostMsg_Initialize,
  80                         GetMediaPlayerManager(render_frame_host),
  81                         BrowserMediaPlayerManager::OnInitialize)
  82     IPC_MESSAGE_FORWARD(MediaPlayerHostMsg_Start,
  83                         GetMediaPlayerManager(render_frame_host),
  84                         BrowserMediaPlayerManager::OnStart)
  85     IPC_MESSAGE_FORWARD(MediaPlayerHostMsg_Seek,
  86                         GetMediaPlayerManager(render_frame_host),
  87                         BrowserMediaPlayerManager::OnSeek)
  88     IPC_MESSAGE_FORWARD(MediaPlayerHostMsg_Pause,
  89                         GetMediaPlayerManager(render_frame_host),
  90                         BrowserMediaPlayerManager::OnPause)
  91     IPC_MESSAGE_FORWARD(MediaPlayerHostMsg_SetVolume,
  92                         GetMediaPlayerManager(render_frame_host),
  93                         BrowserMediaPlayerManager::OnSetVolume)
  94     IPC_MESSAGE_FORWARD(MediaPlayerHostMsg_SetPoster,
  95                         GetMediaPlayerManager(render_frame_host),
  96                         BrowserMediaPlayerManager::OnSetPoster)
  97     IPC_MESSAGE_FORWARD(MediaPlayerHostMsg_Release,
  98                         GetMediaPlayerManager(render_frame_host),
  99                         BrowserMediaPlayerManager::OnReleaseResources)
 100     IPC_MESSAGE_FORWARD(MediaPlayerHostMsg_DestroyMediaPlayer,
 101                         GetMediaPlayerManager(render_frame_host),
 102                         BrowserMediaPlayerManager::OnDestroyPlayer)
 103     IPC_MESSAGE_FORWARD(MediaPlayerHostMsg_RequestRemotePlayback,
 104                         GetMediaPlayerManager(render_frame_host),
 105                         BrowserMediaPlayerManager::OnRequestRemotePlayback)
 106     IPC_MESSAGE_FORWARD(
 107         MediaPlayerHostMsg_RequestRemotePlaybackControl,
 108         GetMediaPlayerManager(render_frame_host),
 109         BrowserMediaPlayerManager::OnRequestRemotePlaybackControl)
 110 #if defined(VIDEO_HOLE)
 111     IPC_MESSAGE_FORWARD(MediaPlayerHostMsg_NotifyExternalSurface,
 112                         GetMediaPlayerManager(render_frame_host),
 113                         BrowserMediaPlayerManager::OnNotifyExternalSurface)
 114 #endif  // defined(VIDEO_HOLE)
 115     IPC_MESSAGE_UNHANDLED(handled = false)
 116   IPC_END_MESSAGE_MAP()
 117   return handled;
 118 }
 119
 120 bool MediaWebContentsObserver::OnMediaPlayerSetCdmMessageReceived(
 121     const IPC::Message& msg,
 122     RenderFrameHost* render_frame_host) {
 123   bool handled = true;
 124   IPC_BEGIN_MESSAGE_MAP_WITH_PARAM(
 125       MediaWebContentsObserver, msg, render_frame_host)
 126     IPC_MESSAGE_HANDLER(MediaPlayerHostMsg_SetCdm, OnSetCdm)
 127     IPC_MESSAGE_UNHANDLED(handled = false)
 128   IPC_END_MESSAGE_MAP()
 129   return handled;
 130 }
 131
 132 void MediaWebContentsObserver::OnSetCdm(RenderFrameHost* render_frame_host,
 133                                         int player_id,
 134                                         int cdm_id) {
 135   media::MediaPlayerAndroid* media_player =
 136       GetMediaPlayerManager(render_frame_host)->GetPlayer(player_id);
 137   if (!media_player) {
 138     NOTREACHED() << "OnSetCdm: MediaPlayer not found for " << player_id;
 139     return;
 140   }
 141
 142   // MediaPlayerAndroid runs on the same thread as BrowserCdmManager.
 143   BrowserCdmManager* browser_cdm_manager =
 144       BrowserCdmManager::FromProcess(render_frame_host->GetProcess()->GetID());
 145   if (!browser_cdm_manager) {
 146     NOTREACHED() << "OnSetCdm: CDM not found for " << cdm_id;
 147     return;
 148   }
 149
 150   media::BrowserCdm* cdm =
 151       browser_cdm_manager->GetCdm(render_frame_host->GetRoutingID(), cdm_id);
 152   if (!cdm) {
 153     NOTREACHED() << "OnSetCdm: CDM not found for " << cdm_id;
 154     return;
 155   }
 156
 157   // TODO(xhwang): This could possibly fail. In that case we should reject the
 158   // promise.
 159   media_player->SetCdm(cdm);
 160 }
 161
 162 BrowserMediaPlayerManager* MediaWebContentsObserver::GetMediaPlayerManager(
 163     RenderFrameHost* render_frame_host) {
 164   uintptr_t key = reinterpret_cast<uintptr_t>(render_frame_host);
 165   if (!media_player_managers_.contains(key)) {
 166     media_player_managers_.set(
 167         key,
 168         make_scoped_ptr(BrowserMediaPlayerManager::Create(
 169             render_frame_host, GetMediaPlayersObserver())));
 170   }
 171   return media_player_managers_.get(key);
 172 }
 173
 174 MediaPlayersObserver*
 175 MediaWebContentsObserver::GetMediaPlayersObserver() const {
 176   AudioStateProvider* provider =
 177       static_cast<WebContentsImpl*>(web_contents())->audio_state_provider();
 178
 179   MediaPlayersObserver* audio_observer =
 180       static_cast<MediaPlayersObserver*>(provider);
 181
 182   DCHECK(audio_observer);
 183   return audio_observer;
 184 }
 185
 186 #if defined(VIDEO_HOLE)
 187 void MediaWebContentsObserver::OnFrameInfoUpdated() {
 188   for (MediaPlayerManagerMap::iterator iter = media_player_managers_.begin();
 189       iter != media_player_managers_.end(); ++iter) {
 190     BrowserMediaPlayerManager* manager = iter->second;
 191     manager->OnFrameInfoUpdated();
 192   }
 193 }
 194 #endif  // defined(VIDEO_HOLE)
 195
 196 #endif  // defined(OS_ANDROID)
 197
 198 }  // namespace content