cpix_parser.h

// Copyright 2026 Google LLC. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
 
#ifndef PACKAGER_MEDIA_BASE_CPIX_PARSER_H_
#define PACKAGER_MEDIA_BASE_CPIX_PARSER_H_
 
#include <cstdint>
#include <limits>
#include <optional>
#include <string>
#include <vector>
 
#include <packager/status.h>
 
namespace shaka {
namespace media {
 
struct CpixEncryptedValue {
  std::string algorithm;
  std::vector<uint8_t> cipher_value;
  std::vector<uint8_t> value_mac;
};
 
struct CpixContentKey {
  std::vector<uint8_t> key_id;
  std::vector<uint8_t> key;
  std::optional<CpixEncryptedValue> encrypted_key;
  std::vector<uint8_t> iv;
  std::string common_encryption_scheme;
};
 
struct CpixDrmSystem {
  std::vector<uint8_t> key_id;
  std::vector<uint8_t> system_id;
  std::vector<uint8_t> pssh;
};
 
struct CpixVideoFilter {
  int64_t min_pixels = 0;
  int64_t max_pixels = std::numeric_limits<int64_t>::max();
};
 
struct CpixUsageRule {
  std::vector<uint8_t> key_id;
  std::string intended_track_type;
  bool has_audio_filter = false;
  std::vector<CpixVideoFilter> video_filters;
};
 
struct CpixDeliveryData {
  CpixEncryptedValue document_key;
  std::string mac_algorithm;
  CpixEncryptedValue mac_key;
};
 
struct CpixDocument {
  std::vector<CpixContentKey> content_keys;
  std::vector<CpixDrmSystem> drm_systems;
  std::vector<CpixUsageRule> usage_rules;
  std::vector<CpixDeliveryData> delivery_data;
};
 
Status ParseCpixDocument(const std::string& xml, CpixDocument* document);
 
}  // namespace media
}  // namespace shaka
 
#endif  // PACKAGER_MEDIA_BASE_CPIX_PARSER_H_