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   // TODO(jrummell): Pass |security_origin| to all constructors.
  35   // TODO(jrummell): Enable the following line once blink code updated to
  36   // check the security origin before calling.
  37   // DCHECK(security_origin.is_valid());
  38
  39 #if defined(ENABLE_BROWSER_CDMS)
  40   *cdm_id = RendererCdmManager::kInvalidCdmId;
  41 #endif
  42
  43   if (CanUseAesDecryptor(key_system)) {
  44     return scoped_ptr<media::MediaKeys>(
  45         new media::AesDecryptor(session_message_cb, session_closed_cb));
  46   }
  47 #if defined(ENABLE_PEPPER_CDMS)
  48   return scoped_ptr<media::MediaKeys>(
  49       PpapiDecryptor::Create(key_system,
  50                              security_origin,
  51                              create_pepper_cdm_cb,
  52                              session_message_cb,
  53                              session_ready_cb,
  54                              session_closed_cb,
  55                              session_error_cb));
  56 #elif defined(ENABLE_BROWSER_CDMS)
  57   scoped_ptr<ProxyMediaKeys> proxy_media_keys =
  58       ProxyMediaKeys::Create(key_system,
  59                              security_origin,
  60                              manager,
  61                              session_message_cb,
  62                              session_ready_cb,
  63                              session_closed_cb,
  64                              session_error_cb);
  65   if (proxy_media_keys)
  66     *cdm_id = proxy_media_keys->GetCdmId();
  67   return proxy_media_keys.PassAs<media::MediaKeys>();
  68 #else
  69   return scoped_ptr<media::MediaKeys>();
  70 #endif  // defined(ENABLE_PEPPER_CDMS)
  71 }
  72
  73 }  // namespace content