media/base/browser_cdm.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_BROWSER_CDM_H_
   6 #define MEDIA_BASE_BROWSER_CDM_H_
   7
   8 #include "media/base/media_export.h"
   9 #include "media/base/media_keys.h"
  10 #include "media/base/player_tracker.h"
  11
  12 namespace media {
  13
  14 // Interface for browser side CDMs.
  15 class MEDIA_EXPORT BrowserCdm : public PlayerTracker {
  16  public:
  17   // TODO(jrummell): Update this to actually derive from MediaKeys
  18   // (Use web_session_id rather than session_id).
  19   typedef base::Callback<
  20       void(uint32 session_id, const std::string& web_session_id)>
  21       SessionCreatedCB;
  22
  23   typedef base::Callback<void(uint32 session_id,
  24                               const std::vector<uint8>& message,
  25                               const GURL& destination_url)> SessionMessageCB;
  26
  27   typedef base::Callback<void(uint32 session_id)> SessionReadyCB;
  28
  29   typedef base::Callback<void(uint32 session_id)> SessionClosedCB;
  30
  31   typedef base::Callback<void(uint32 session_id,
  32                               media::MediaKeys::KeyError error_code,
  33                               uint32 system_code)> SessionErrorCB;
  34
  35   virtual ~BrowserCdm();
  36
  37   // MediaKeys-like implementation.
  38   virtual bool CreateSession(uint32 session_id,
  39                              const std::string& content_type,
  40                              const uint8* init_data,
  41                              int init_data_length) = 0;
  42   virtual void LoadSession(uint32 session_id,
  43                            const std::string& web_session_id) = 0;
  44   virtual void UpdateSession(uint32 session_id,
  45                              const uint8* response,
  46                              int response_length) = 0;
  47   virtual void ReleaseSession(uint32 session_id) = 0;
  48
  49   // PlayerTracker implementation.
  50   virtual int RegisterPlayer(const base::Closure& new_key_cb,
  51                              const base::Closure& cdm_unset_cb) = 0;
  52   virtual void UnregisterPlayer(int registration_id) = 0;
  53
  54  protected:
  55    BrowserCdm();
  56
  57  private:
  58   DISALLOW_COPY_AND_ASSIGN(BrowserCdm);
  59 };
  60
  61 }  // namespace media
  62
  63 #endif  // MEDIA_BASE_BROWSER_CDM_H_