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      1 // Copyright 2013 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/renderer/media/android/renderer_media_player_manager.h"
      6 
      7 #include "base/bind.h"
      8 #include "base/message_loop/message_loop.h"
      9 #include "content/common/media/media_player_messages_android.h"
     10 #include "content/renderer/media/android/proxy_media_keys.h"
     11 #include "content/renderer/media/android/renderer_media_player_manager.h"
     12 #include "content/renderer/media/android/webmediaplayer_android.h"
     13 #include "ui/gfx/rect_f.h"
     14 
     15 // Maximum sizes for various EME message parameters. These are checks to
     16 // prevent unnecessarily large messages from being passed around, and the sizes
     17 // are somewhat arbitrary as the EME specification doesn't specify any limits.
     18 static const size_t kEmeWebSessionIdMaximum = 512;
     19 static const size_t kEmeMessageMaximum = 10240;  // 10 KB
     20 static const size_t kEmeDestinationUrlMaximum = 2048;  // 2 KB
     21 
     22 namespace content {
     23 
     24 RendererMediaPlayerManager::RendererMediaPlayerManager(RenderView* render_view)
     25     : RenderViewObserver(render_view),
     26       next_media_player_id_(0),
     27       fullscreen_frame_(NULL),
     28       pending_fullscreen_frame_(NULL) {}
     29 
     30 RendererMediaPlayerManager::~RendererMediaPlayerManager() {
     31   std::map<int, WebMediaPlayerAndroid*>::iterator player_it;
     32   for (player_it = media_players_.begin();
     33       player_it != media_players_.end(); ++player_it) {
     34     WebMediaPlayerAndroid* player = player_it->second;
     35     player->Detach();
     36   }
     37 
     38   Send(new MediaPlayerHostMsg_DestroyAllMediaPlayers(routing_id()));
     39 }
     40 
     41 bool RendererMediaPlayerManager::OnMessageReceived(const IPC::Message& msg) {
     42   bool handled = true;
     43   IPC_BEGIN_MESSAGE_MAP(RendererMediaPlayerManager, msg)
     44     IPC_MESSAGE_HANDLER(MediaPlayerMsg_MediaMetadataChanged,
     45                         OnMediaMetadataChanged)
     46     IPC_MESSAGE_HANDLER(MediaPlayerMsg_MediaPlaybackCompleted,
     47                         OnMediaPlaybackCompleted)
     48     IPC_MESSAGE_HANDLER(MediaPlayerMsg_MediaBufferingUpdate,
     49                         OnMediaBufferingUpdate)
     50     IPC_MESSAGE_HANDLER(MediaPlayerMsg_SeekRequest, OnSeekRequest)
     51     IPC_MESSAGE_HANDLER(MediaPlayerMsg_SeekCompleted, OnSeekCompleted)
     52     IPC_MESSAGE_HANDLER(MediaPlayerMsg_MediaError, OnMediaError)
     53     IPC_MESSAGE_HANDLER(MediaPlayerMsg_MediaVideoSizeChanged,
     54                         OnVideoSizeChanged)
     55     IPC_MESSAGE_HANDLER(MediaPlayerMsg_MediaTimeUpdate, OnTimeUpdate)
     56     IPC_MESSAGE_HANDLER(MediaPlayerMsg_MediaPlayerReleased,
     57                         OnMediaPlayerReleased)
     58     IPC_MESSAGE_HANDLER(MediaPlayerMsg_ConnectedToRemoteDevice,
     59                         OnConnectedToRemoteDevice)
     60     IPC_MESSAGE_HANDLER(MediaPlayerMsg_DisconnectedFromRemoteDevice,
     61                         OnDisconnectedFromRemoteDevice)
     62     IPC_MESSAGE_HANDLER(MediaPlayerMsg_RequestFullscreen,
     63                         OnRequestFullscreen)
     64     IPC_MESSAGE_HANDLER(MediaPlayerMsg_DidEnterFullscreen, OnDidEnterFullscreen)
     65     IPC_MESSAGE_HANDLER(MediaPlayerMsg_DidExitFullscreen, OnDidExitFullscreen)
     66     IPC_MESSAGE_HANDLER(MediaPlayerMsg_DidMediaPlayerPlay, OnPlayerPlay)
     67     IPC_MESSAGE_HANDLER(MediaPlayerMsg_DidMediaPlayerPause, OnPlayerPause)
     68     IPC_MESSAGE_HANDLER(MediaKeysMsg_SessionCreated, OnSessionCreated)
     69     IPC_MESSAGE_HANDLER(MediaKeysMsg_SessionMessage, OnSessionMessage)
     70     IPC_MESSAGE_HANDLER(MediaKeysMsg_SessionReady, OnSessionReady)
     71     IPC_MESSAGE_HANDLER(MediaKeysMsg_SessionClosed, OnSessionClosed)
     72     IPC_MESSAGE_HANDLER(MediaKeysMsg_SessionError, OnSessionError)
     73   IPC_MESSAGE_UNHANDLED(handled = false)
     74   IPC_END_MESSAGE_MAP()
     75   return handled;
     76 }
     77 
     78 void RendererMediaPlayerManager::Initialize(
     79     MediaPlayerHostMsg_Initialize_Type type,
     80     int player_id,
     81     const GURL& url,
     82     const GURL& first_party_for_cookies,
     83     int demuxer_client_id) {
     84   Send(new MediaPlayerHostMsg_Initialize(
     85       routing_id(), type, player_id, url, first_party_for_cookies,
     86       demuxer_client_id));
     87 }
     88 
     89 void RendererMediaPlayerManager::Start(int player_id) {
     90   Send(new MediaPlayerHostMsg_Start(routing_id(), player_id));
     91 }
     92 
     93 void RendererMediaPlayerManager::Pause(
     94     int player_id,
     95     bool is_media_related_action) {
     96   Send(new MediaPlayerHostMsg_Pause(
     97       routing_id(), player_id, is_media_related_action));
     98 }
     99 
    100 void RendererMediaPlayerManager::Seek(
    101     int player_id,
    102     const base::TimeDelta& time) {
    103   Send(new MediaPlayerHostMsg_Seek(routing_id(), player_id, time));
    104 }
    105 
    106 void RendererMediaPlayerManager::SetVolume(int player_id, double volume) {
    107   Send(new MediaPlayerHostMsg_SetVolume(routing_id(), player_id, volume));
    108 }
    109 
    110 void RendererMediaPlayerManager::ReleaseResources(int player_id) {
    111   Send(new MediaPlayerHostMsg_Release(routing_id(), player_id));
    112 }
    113 
    114 void RendererMediaPlayerManager::DestroyPlayer(int player_id) {
    115   Send(new MediaPlayerHostMsg_DestroyMediaPlayer(routing_id(), player_id));
    116 }
    117 
    118 void RendererMediaPlayerManager::OnMediaMetadataChanged(
    119     int player_id,
    120     base::TimeDelta duration,
    121     int width,
    122     int height,
    123     bool success) {
    124   WebMediaPlayerAndroid* player = GetMediaPlayer(player_id);
    125   if (player)
    126     player->OnMediaMetadataChanged(duration, width, height, success);
    127 }
    128 
    129 void RendererMediaPlayerManager::OnMediaPlaybackCompleted(int player_id) {
    130   WebMediaPlayerAndroid* player = GetMediaPlayer(player_id);
    131   if (player)
    132     player->OnPlaybackComplete();
    133 }
    134 
    135 void RendererMediaPlayerManager::OnMediaBufferingUpdate(int player_id,
    136                                                         int percent) {
    137   WebMediaPlayerAndroid* player = GetMediaPlayer(player_id);
    138   if (player)
    139     player->OnBufferingUpdate(percent);
    140 }
    141 
    142 void RendererMediaPlayerManager::OnSeekRequest(
    143     int player_id,
    144     const base::TimeDelta& time_to_seek) {
    145   WebMediaPlayerAndroid* player = GetMediaPlayer(player_id);
    146   if (player)
    147     player->OnSeekRequest(time_to_seek);
    148 }
    149 
    150 void RendererMediaPlayerManager::OnSeekCompleted(
    151     int player_id,
    152     const base::TimeDelta& current_time) {
    153   WebMediaPlayerAndroid* player = GetMediaPlayer(player_id);
    154   if (player)
    155     player->OnSeekComplete(current_time);
    156 }
    157 
    158 void RendererMediaPlayerManager::OnMediaError(int player_id, int error) {
    159   WebMediaPlayerAndroid* player = GetMediaPlayer(player_id);
    160   if (player)
    161     player->OnMediaError(error);
    162 }
    163 
    164 void RendererMediaPlayerManager::OnVideoSizeChanged(int player_id,
    165                                                     int width,
    166                                                     int height) {
    167   WebMediaPlayerAndroid* player = GetMediaPlayer(player_id);
    168   if (player)
    169     player->OnVideoSizeChanged(width, height);
    170 }
    171 
    172 void RendererMediaPlayerManager::OnTimeUpdate(int player_id,
    173                                               base::TimeDelta current_time) {
    174   WebMediaPlayerAndroid* player = GetMediaPlayer(player_id);
    175   if (player)
    176     player->OnTimeUpdate(current_time);
    177 }
    178 
    179 void RendererMediaPlayerManager::OnMediaPlayerReleased(int player_id) {
    180   WebMediaPlayerAndroid* player = GetMediaPlayer(player_id);
    181   if (player)
    182     player->OnPlayerReleased();
    183 }
    184 
    185 void RendererMediaPlayerManager::OnConnectedToRemoteDevice(int player_id) {
    186   WebMediaPlayerAndroid* player = GetMediaPlayer(player_id);
    187   if (player)
    188     player->OnConnectedToRemoteDevice();
    189 }
    190 
    191 void RendererMediaPlayerManager::OnDisconnectedFromRemoteDevice(int player_id) {
    192   WebMediaPlayerAndroid* player = GetMediaPlayer(player_id);
    193   if (player)
    194     player->OnDisconnectedFromRemoteDevice();
    195 }
    196 
    197 void RendererMediaPlayerManager::OnDidEnterFullscreen(int player_id) {
    198   WebMediaPlayerAndroid* player = GetMediaPlayer(player_id);
    199   if (player)
    200     player->OnDidEnterFullscreen();
    201 }
    202 
    203 void RendererMediaPlayerManager::OnDidExitFullscreen(int player_id) {
    204   WebMediaPlayerAndroid* player = GetMediaPlayer(player_id);
    205   if (player)
    206     player->OnDidExitFullscreen();
    207 }
    208 
    209 void RendererMediaPlayerManager::OnPlayerPlay(int player_id) {
    210   WebMediaPlayerAndroid* player = GetMediaPlayer(player_id);
    211   if (player)
    212     player->OnMediaPlayerPlay();
    213 }
    214 
    215 void RendererMediaPlayerManager::OnPlayerPause(int player_id) {
    216   WebMediaPlayerAndroid* player = GetMediaPlayer(player_id);
    217   if (player)
    218     player->OnMediaPlayerPause();
    219 }
    220 
    221 void RendererMediaPlayerManager::OnRequestFullscreen(int player_id) {
    222   WebMediaPlayerAndroid* player = GetMediaPlayer(player_id);
    223   if (player)
    224     player->OnRequestFullscreen();
    225 }
    226 
    227 void RendererMediaPlayerManager::EnterFullscreen(int player_id,
    228                                                  blink::WebFrame* frame) {
    229   pending_fullscreen_frame_ = frame;
    230   Send(new MediaPlayerHostMsg_EnterFullscreen(routing_id(), player_id));
    231 }
    232 
    233 void RendererMediaPlayerManager::ExitFullscreen(int player_id) {
    234   pending_fullscreen_frame_ = NULL;
    235   Send(new MediaPlayerHostMsg_ExitFullscreen(routing_id(), player_id));
    236 }
    237 
    238 void RendererMediaPlayerManager::InitializeCDM(int media_keys_id,
    239                                                ProxyMediaKeys* media_keys,
    240                                                const std::vector<uint8>& uuid,
    241                                                const GURL& frame_url) {
    242   RegisterMediaKeys(media_keys_id, media_keys);
    243   Send(new MediaKeysHostMsg_InitializeCDM(
    244       routing_id(), media_keys_id, uuid, frame_url));
    245 }
    246 
    247 void RendererMediaPlayerManager::CreateSession(
    248     int media_keys_id,
    249     uint32 session_id,
    250     const std::string& type,
    251     const std::vector<uint8>& init_data) {
    252   Send(new MediaKeysHostMsg_CreateSession(
    253       routing_id(), media_keys_id, session_id, type, init_data));
    254 }
    255 
    256 void RendererMediaPlayerManager::UpdateSession(
    257     int media_keys_id,
    258     uint32 session_id,
    259     const std::vector<uint8>& response) {
    260   Send(new MediaKeysHostMsg_UpdateSession(
    261       routing_id(), media_keys_id, session_id, response));
    262 }
    263 
    264 void RendererMediaPlayerManager::ReleaseSession(int media_keys_id,
    265                                                 uint32 session_id) {
    266   Send(new MediaKeysHostMsg_ReleaseSession(
    267       routing_id(), media_keys_id, session_id));
    268 }
    269 
    270 void RendererMediaPlayerManager::OnSessionCreated(
    271     int media_keys_id,
    272     uint32 session_id,
    273     const std::string& web_session_id) {
    274   if (web_session_id.length() > kEmeWebSessionIdMaximum) {
    275     OnSessionError(
    276         media_keys_id, session_id, media::MediaKeys::kUnknownError, 0);
    277     return;
    278   }
    279 
    280   ProxyMediaKeys* media_keys = GetMediaKeys(media_keys_id);
    281   if (media_keys)
    282     media_keys->OnSessionCreated(session_id, web_session_id);
    283 }
    284 
    285 void RendererMediaPlayerManager::OnSessionMessage(
    286     int media_keys_id,
    287     uint32 session_id,
    288     const std::vector<uint8>& message,
    289     const std::string& destination_url) {
    290   if (message.size() > kEmeMessageMaximum) {
    291     OnSessionError(
    292         media_keys_id, session_id, media::MediaKeys::kUnknownError, 0);
    293     return;
    294   }
    295   if (destination_url.length() > kEmeDestinationUrlMaximum) {
    296     OnSessionError(
    297         media_keys_id, session_id, media::MediaKeys::kUnknownError, 0);
    298     return;
    299   }
    300 
    301   ProxyMediaKeys* media_keys = GetMediaKeys(media_keys_id);
    302   if (media_keys)
    303     media_keys->OnSessionMessage(session_id, message, destination_url);
    304 }
    305 
    306 void RendererMediaPlayerManager::OnSessionReady(int media_keys_id,
    307                                                 uint32 session_id) {
    308   ProxyMediaKeys* media_keys = GetMediaKeys(media_keys_id);
    309   if (media_keys)
    310     media_keys->OnSessionReady(session_id);
    311 }
    312 
    313 void RendererMediaPlayerManager::OnSessionClosed(int media_keys_id,
    314                                                  uint32 session_id) {
    315   ProxyMediaKeys* media_keys = GetMediaKeys(media_keys_id);
    316   if (media_keys)
    317     media_keys->OnSessionClosed(session_id);
    318 }
    319 
    320 void RendererMediaPlayerManager::OnSessionError(
    321     int media_keys_id,
    322     uint32 session_id,
    323     media::MediaKeys::KeyError error_code,
    324     int system_code) {
    325   ProxyMediaKeys* media_keys = GetMediaKeys(media_keys_id);
    326   if (media_keys)
    327     media_keys->OnSessionError(session_id, error_code, system_code);
    328 }
    329 
    330 int RendererMediaPlayerManager::RegisterMediaPlayer(
    331     WebMediaPlayerAndroid* player) {
    332   media_players_[next_media_player_id_] = player;
    333   return next_media_player_id_++;
    334 }
    335 
    336 void RendererMediaPlayerManager::UnregisterMediaPlayer(int player_id) {
    337   media_players_.erase(player_id);
    338   media_keys_.erase(player_id);
    339 }
    340 
    341 void RendererMediaPlayerManager::RegisterMediaKeys(int media_keys_id,
    342                                                    ProxyMediaKeys* media_keys) {
    343   // WebMediaPlayerAndroid must have already been registered for
    344   // |media_keys_id|. For now |media_keys_id| is the same as player_id
    345   // used in other methods.
    346   DCHECK(media_players_.find(media_keys_id) != media_players_.end());
    347 
    348   // Only allowed to register once.
    349   DCHECK(media_keys_.find(media_keys_id) == media_keys_.end());
    350 
    351   media_keys_[media_keys_id] = media_keys;
    352 }
    353 
    354 void RendererMediaPlayerManager::ReleaseVideoResources() {
    355   std::map<int, WebMediaPlayerAndroid*>::iterator player_it;
    356   for (player_it = media_players_.begin();
    357       player_it != media_players_.end(); ++player_it) {
    358     WebMediaPlayerAndroid* player = player_it->second;
    359 
    360     // Do not release if an audio track is still playing
    361     if (player && (player->paused() || player->hasVideo()))
    362       player->ReleaseMediaResources();
    363   }
    364 }
    365 
    366 WebMediaPlayerAndroid* RendererMediaPlayerManager::GetMediaPlayer(
    367     int player_id) {
    368   std::map<int, WebMediaPlayerAndroid*>::iterator iter =
    369       media_players_.find(player_id);
    370   if (iter != media_players_.end())
    371     return iter->second;
    372   return NULL;
    373 }
    374 
    375 ProxyMediaKeys* RendererMediaPlayerManager::GetMediaKeys(int media_keys_id) {
    376   std::map<int, ProxyMediaKeys*>::iterator iter =
    377       media_keys_.find(media_keys_id);
    378   return (iter != media_keys_.end()) ? iter->second : NULL;
    379 }
    380 
    381 bool RendererMediaPlayerManager::CanEnterFullscreen(blink::WebFrame* frame) {
    382   return (!fullscreen_frame_ && !pending_fullscreen_frame_)
    383       || ShouldEnterFullscreen(frame);
    384 }
    385 
    386 void RendererMediaPlayerManager::DidEnterFullscreen(blink::WebFrame* frame) {
    387   pending_fullscreen_frame_ = NULL;
    388   fullscreen_frame_ = frame;
    389 }
    390 
    391 void RendererMediaPlayerManager::DidExitFullscreen() {
    392   fullscreen_frame_ = NULL;
    393 }
    394 
    395 bool RendererMediaPlayerManager::IsInFullscreen(blink::WebFrame* frame) {
    396   return fullscreen_frame_ == frame;
    397 }
    398 
    399 bool RendererMediaPlayerManager::ShouldEnterFullscreen(blink::WebFrame* frame) {
    400   return fullscreen_frame_ == frame || pending_fullscreen_frame_ == frame;
    401 }
    402 
    403 #if defined(VIDEO_HOLE)
    404 void RendererMediaPlayerManager::RequestExternalSurface(
    405     int player_id,
    406     const gfx::RectF& geometry) {
    407   Send(new MediaPlayerHostMsg_NotifyExternalSurface(
    408       routing_id(), player_id, true, geometry));
    409 }
    410 
    411 void RendererMediaPlayerManager::DidCommitCompositorFrame() {
    412   std::map<int, gfx::RectF> geometry_change;
    413   RetrieveGeometryChanges(&geometry_change);
    414   for (std::map<int, gfx::RectF>::iterator it = geometry_change.begin();
    415        it != geometry_change.end();
    416        ++it) {
    417     Send(new MediaPlayerHostMsg_NotifyExternalSurface(
    418         routing_id(), it->first, false, it->second));
    419   }
    420 }
    421 
    422 void RendererMediaPlayerManager::RetrieveGeometryChanges(
    423     std::map<int, gfx::RectF>* changes) {
    424   DCHECK(changes->empty());
    425   for (std::map<int, WebMediaPlayerAndroid*>::iterator player_it =
    426            media_players_.begin();
    427        player_it != media_players_.end();
    428        ++player_it) {
    429     WebMediaPlayerAndroid* player = player_it->second;
    430 
    431     if (player && player->hasVideo()) {
    432       gfx::RectF rect;
    433       if (player->RetrieveGeometryChange(&rect)) {
    434         (*changes)[player_it->first] = rect;
    435       }
    436     }
    437   }
    438 }
    439 #endif  // defined(VIDEO_HOLE)
    440 
    441 }  // namespace content
    442