media/base/cdm_factory.h

   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 #ifndef MEDIA_BASE_CDM_FACTORY_H_
   6 #define MEDIA_BASE_CDM_FACTORY_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "media/base/media_export.h"
  12 #include "media/base/media_keys.h"
  13
  14 class GURL;
  15
  16 namespace media {
  17
  18 // Callback used when CDM is created. |error_message| only used if
  19 // MediaKeys is null (i.e. CDM can't be created).
  20 using CdmCreatedCB = base::Callback<void(scoped_ptr<MediaKeys>,
  21                                          const std::string& error_message)>;
  22
  23 struct CdmConfig;
  24
  25 class MEDIA_EXPORT CdmFactory {
  26  public:
  27   CdmFactory();
  28   virtual ~CdmFactory();
  29
  30   // Creates a CDM for |key_system| and returns it through |cdm_created_cb|
  31   // asynchronously.
  32   virtual void Create(
  33       const std::string& key_system,
  34       const GURL& security_origin,
  35       const CdmConfig& cdm_config,
  36       const SessionMessageCB& session_message_cb,
  37       const SessionClosedCB& session_closed_cb,
  38       const LegacySessionErrorCB& legacy_session_error_cb,
  39       const SessionKeysChangeCB& session_keys_change_cb,
  40       const SessionExpirationUpdateCB& session_expiration_update_cb,
  41       const CdmCreatedCB& cdm_created_cb) = 0;
  42
  43  private:
  44   DISALLOW_COPY_AND_ASSIGN(CdmFactory);
  45 };
  46
  47 }  // namespace media
  48
  49 #endif  // MEDIA_BASE_CDM_FACTORY_H_