chromecast/public/media/decrypt_context.h

   1 // Copyright 2015 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 CHROMECAST_PUBLIC_MEDIA_DECRYPT_CONTEXT_H_
   6 #define CHROMECAST_PUBLIC_MEDIA_DECRYPT_CONTEXT_H_
   7
   8 #include <stdint.h>
   9 #include <vector>
  10
  11 #include "cast_key_system.h"
  12
  13 namespace chromecast {
  14 namespace media {
  15 class CastDecoderBuffer;
  16
  17 // Provides the information needed to decrypt frames.
  18 class DecryptContext {
  19  public:
  20   virtual ~DecryptContext() {}
  21
  22   // Get the key system to use for decryption.
  23   virtual CastKeySystem GetKeySystem() = 0;
  24
  25   // Decrypts the given buffer.  Returns true/false for success/failure,
  26   // and places the decrypted data in output if successful.
  27   virtual bool Decrypt(CastDecoderBuffer* buffer,
  28                        std::vector<uint8_t>* output) = 0;
  29 };
  30
  31 }  // namespace media
  32 }  // namespace chromecast
  33
  34 #endif  // CHROMECAST_PUBLIC_MEDIA_DECRYPT_CONTEXT_H_