chromecast/browser/media/cast_browser_cdm_factory.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 "chromecast/browser/media/cast_browser_cdm_factory.h"
   6
   7 #include "base/bind.h"
   8 #include "base/location.h"
   9 #include "base/message_loop/message_loop_proxy.h"
  10 #include "chromecast/browser/media/cma_message_loop.h"
  11 #include "chromecast/media/cdm/browser_cdm_cast.h"
  12
  13 namespace chromecast {
  14 namespace media {
  15
  16 scoped_ptr<::media::BrowserCdm> CastBrowserCdmFactory::CreateBrowserCdm(
  17     const std::string& key_system_name,
  18     bool use_secure_surface,
  19     const ::media::SessionMessageCB& session_message_cb,
  20     const ::media::SessionClosedCB& session_closed_cb,
  21     const ::media::LegacySessionErrorCB& legacy_session_error_cb,
  22     const ::media::SessionKeysChangeCB& session_keys_change_cb,
  23     const ::media::SessionExpirationUpdateCB& session_expiration_update_cb) {
  24   DCHECK(!use_secure_surface) << "Chromecast does not use |use_secure_surface|";
  25
  26   CastKeySystem key_system(GetKeySystemByName(key_system_name));
  27
  28   scoped_ptr<chromecast::media::BrowserCdmCast> browser_cdm;
  29   if (key_system == chromecast::media::KEY_SYSTEM_CLEAR_KEY) {
  30     // TODO(gunsch): handle ClearKey decryption. See crbug.com/441957
  31   } else {
  32     browser_cdm = CreatePlatformBrowserCdm(key_system);
  33   }
  34
  35   if (browser_cdm) {
  36     CmaMessageLoop::GetMessageLoopProxy()->PostTask(
  37         FROM_HERE,
  38         base::Bind(&BrowserCdmCast::Initialize,
  39                    base::Unretained(browser_cdm.get()), session_message_cb,
  40                    session_closed_cb, legacy_session_error_cb,
  41                    session_keys_change_cb, session_expiration_update_cb));
  42     return make_scoped_ptr(
  43         new BrowserCdmCastUi(browser_cdm.Pass(),
  44                              CmaMessageLoop::GetMessageLoopProxy()));
  45   }
  46
  47   LOG(INFO) << "No matching key system found.";
  48   return scoped_ptr< ::media::BrowserCdm>();
  49 }
  50
  51 }  // namespace media
  52 }  // namespace chromecast