src/content/renderer/media/crypto/content_decryption_module_factory.cc

   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/crypto/content_decryption_module_factory.h"
   6
   7 #include "base/logging.h"
   8 #include "content/renderer/media/crypto/key_systems.h"
   9 #include "media/cdm/aes_decryptor.h"
  10 #include "url/gurl.h"
  11
  12 #if defined(ENABLE_PEPPER_CDMS)
  13 #include "content/renderer/media/crypto/ppapi_decryptor.h"
  14 #elif defined(ENABLE_BROWSER_CDMS)
  15 #include "content/renderer/media/crypto/proxy_media_keys.h"
  16 #include "content/renderer/media/crypto/renderer_cdm_manager.h"
  17 #endif  // defined(ENABLE_PEPPER_CDMS)
  18
  19 namespace content {
  20
  21 scoped_ptr<media::MediaKeys> ContentDecryptionModuleFactory::Create(
  22     const std::string& key_system,
  23     const GURL& security_origin,
  24 #if defined(ENABLE_PEPPER_CDMS)
  25     const CreatePepperCdmCB& create_pepper_cdm_cb,
  26 #elif defined(ENABLE_BROWSER_CDMS)
  27     RendererCdmManager* manager,
  28     int* cdm_id,
  29 #endif  // defined(ENABLE_PEPPER_CDMS)
  30     const media::SessionMessageCB& session_message_cb,
  31     const media::SessionReadyCB& session_ready_cb,
  32     const media::SessionClosedCB& session_closed_cb,
  33     const media::SessionErrorCB& session_error_cb,
  34     const media::SessionKeysChangeCB& session_keys_change_cb,
  35     const media::SessionExpirationUpdateCB& session_expiration_update_cb) {
  36   // TODO(jrummell): Pass |security_origin| to all constructors.
  37   // TODO(jrummell): Enable the following line once blink code updated to
  38   // check the security origin before calling.
  39   // DCHECK(security_origin.is_valid());
  40
  41 #if defined(ENABLE_BROWSER_CDMS)
  42   *cdm_id = RendererCdmManager::kInvalidCdmId;
  43 #endif
  44
  45   if (CanUseAesDecryptor(key_system)) {
  46     return scoped_ptr<media::MediaKeys>(new media::AesDecryptor(
  47         session_message_cb, session_closed_cb, session_keys_change_cb));
  48   }
  49 #if defined(ENABLE_PEPPER_CDMS)
  50   return scoped_ptr<media::MediaKeys>(
  51       PpapiDecryptor::Create(key_system,
  52                              security_origin,
  53                              create_pepper_cdm_cb,
  54                              session_message_cb,
  55                              session_ready_cb,
  56                              session_closed_cb,
  57                              session_error_cb,
  58                              session_keys_change_cb,
  59                              session_expiration_update_cb));
  60 #elif defined(ENABLE_BROWSER_CDMS)
  61   scoped_ptr<ProxyMediaKeys> proxy_media_keys =
  62       ProxyMediaKeys::Create(key_system,
  63                              security_origin,
  64                              manager,
  65                              session_message_cb,
  66                              session_ready_cb,
  67                              session_closed_cb,
  68                              session_error_cb,
  69                              session_keys_change_cb,
  70                              session_expiration_update_cb);
  71   if (proxy_media_keys)
  72     *cdm_id = proxy_media_keys->GetCdmId();
  73   return proxy_media_keys.PassAs<media::MediaKeys>();
  74 #else
  75   return scoped_ptr<media::MediaKeys>();
  76 #endif  // defined(ENABLE_PEPPER_CDMS)
  77 }
  78
  79 }  // namespace content