69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
// Copyright 2016 Google Inc. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file or at
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// https://developers.google.com/open-source/licenses/bsd
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#ifndef PACKAGER_MEDIA_BASE_RAW_KEY_SOURCE_H_
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#define PACKAGER_MEDIA_BASE_RAW_KEY_SOURCE_H_
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#include <memory>
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#include <string>
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#include <vector>
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#include "packager/media/base/key_source.h"
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#include "packager/media/public/crypto_params.h"
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namespace shaka {
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namespace media {
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/// A key source that uses raw keys for encryption.
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class RawKeySource : public KeySource {
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public:
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~RawKeySource() override;
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/// @name KeySource implementation overrides.
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/// @{
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Status FetchKeys(EmeInitDataType init_data_type,
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const std::vector<uint8_t>& init_data) override;
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Status GetKey(const std::string& stream_label, EncryptionKey* key) override;
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Status GetKey(const std::vector<uint8_t>& key_id,
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EncryptionKey* key) override;
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Status GetCryptoPeriodKey(uint32_t crypto_period_index,
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uint32_t crypto_period_duration_in_seconds,
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const std::string& stream_label,
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EncryptionKey* key) override;
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/// @}
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/// Creates a new RawKeySource from the given data. Returns null
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/// if the parameter is malformed.
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/// @param raw_key contains parameters to setup the key source.
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/// @param protection_systems is the enum indicating which PSSH should
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/// be included.
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/// @param protection_scheme is the Protection Scheme to be used for
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/// encryption. It needs to be signalled in Widevine PSSH. This
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/// argument can be ignored if Widevine PSSH is not generated.
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static std::unique_ptr<RawKeySource> Create(
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const RawKeyParams& raw_key,
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ProtectionSystem protection_systems,
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FourCC protection_scheme);
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protected:
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// Allow default constructor for mock key sources.
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RawKeySource();
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private:
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RawKeySource(EncryptionKeyMap&& encryption_key_map,
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ProtectionSystem protection_systems,
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FourCC protection_scheme);
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RawKeySource(const RawKeySource&) = delete;
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RawKeySource& operator=(const RawKeySource&) = delete;
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EncryptionKeyMap encryption_key_map_;
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};
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} // namespace media
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} // namespace shaka
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#endif // PACKAGER_MEDIA_BASE_RAW_KEY_SOURCE_H_
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