73 lines
2.5 KiB
C++
73 lines
2.5 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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// Common SystemID defined by EME, which requires Key System implementations
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// supporting ISO Common Encryption to support this SystemID and format.
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// https://goo.gl/kUv2Xd
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const uint8_t kCommonSystemId[] = {0x10, 0x77, 0xef, 0xec, 0xc0, 0xb2,
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0x4d, 0x02, 0xac, 0xe3, 0x3c, 0x1e,
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0x52, 0xe2, 0xfb, 0x4b};
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// Unofficial fairplay system id extracted from
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// https://forums.developer.apple.com/thread/6185.
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const uint8_t kFairplaySystemId[] = {0x29, 0x70, 0x1F, 0xE4, 0x3C, 0xC7,
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0x4A, 0x34, 0x8C, 0x5B, 0xAE, 0x90,
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0xC7, 0x43, 0x9A, 0x47};
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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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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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static std::unique_ptr<RawKeySource> Create(const RawKeyParams& raw_key);
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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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typedef std::map<std::string, std::unique_ptr<EncryptionKey>>
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EncryptionKeyMap;
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explicit RawKeySource(EncryptionKeyMap&& encryption_key_map);
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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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