widevine_pssh_generator.h

// Copyright 2017 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 MEDIA_BASE_WIDEVINE_PSSH_GENERATOR_H_
#define MEDIA_BASE_WIDEVINE_PSSH_GENERATOR_H_
 
#include <cstdint>
 
#include <packager/media/base/fourccs.h>
#include <packager/media/base/pssh_generator.h>
 
namespace shaka {
namespace media {
 
class WidevinePsshGenerator : public PsshGenerator {
 public:
  explicit WidevinePsshGenerator(FourCC protection_scheme);
  ~WidevinePsshGenerator() override;
 
  bool SupportMultipleKeys() override;
 
 private:
  WidevinePsshGenerator& operator=(const WidevinePsshGenerator&) = delete;
  WidevinePsshGenerator(const WidevinePsshGenerator&) = delete;
 
  // PsshGenerator implemetation overrides.
 
  std::optional<std::vector<uint8_t>> GeneratePsshDataFromKeyIds(
      const std::vector<std::vector<uint8_t>>& key_ids) const override;
 
  std::optional<std::vector<uint8_t>> GeneratePsshDataFromKeyIdAndKey(
      const std::vector<uint8_t>& key_id,
      const std::vector<uint8_t>& key) const override;
 
  FourCC protection_scheme_ = FOURCC_NULL;
};
 
}  // namespace media
}  // namespace shaka
 
#endif  // MEDIA_BASE_WIDEVINE_PSSH_GENERATOR_H_