chromecast/media/cdm/chromecast_init_data.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_MEDIA_CDM_INIT_DATA_H_
   6 #define CHROMECAST_MEDIA_CDM_INIT_DATA_H_
   7
   8 #include <stdint.h>
   9
  10 #include <vector>
  11
  12 namespace chromecast {
  13 namespace media {
  14
  15 enum class InitDataMessageType {
  16   UNKNOWN = 0x0,
  17   CUSTOM_DATA = 0x1,
  18   ENABLE_SECURE_STOP = 0x2,
  19   END
  20 };
  21
  22 // Structured data for EME initialization as parsed from an initData blob.
  23 struct ChromecastInitData {
  24   ChromecastInitData();
  25   ~ChromecastInitData();
  26
  27   InitDataMessageType type;
  28   std::vector<uint8_t> data;
  29 };
  30
  31 // Searches for a ChromecastInitData blob inside a CENC |init_data| message of
  32 // type |type|. If such a blob is found, returns true and fills
  33 // |chromecast_init_data_out|. If not found, returns false.
  34 bool FindChromecastInitData(const std::vector<uint8_t>& init_data,
  35                             InitDataMessageType type,
  36                             ChromecastInitData* chromecast_init_data_out);
  37
  38 }  // namespace media
  39 }  // namespace chromecast
  40
  41 #endif  // CHROMECAST_MEDIA_CDM_INIT_DATA_H_