97 lines
3.6 KiB
C++
97 lines
3.6 KiB
C++
// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
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// source code may only be used and distributed under the Widevine Master
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// License Agreement.
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#ifndef CORE_INCLUDE_INITIALIZATION_DATA_H_
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#define CORE_INCLUDE_INITIALIZATION_DATA_H_
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#include <string>
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#include "license_protocol.pb.h"
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#include "wv_cdm_types.h"
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namespace wvcdm {
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class WvCdmEngineTest;
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class InitializationData {
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public:
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InitializationData(const std::string& type = std::string(),
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const CdmInitData& data = CdmInitData(),
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const std::string& oec_version = std::string());
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bool is_supported() const { return is_cenc_ || is_webm_ || is_hls_; }
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bool is_cenc() const { return is_cenc_; }
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bool is_hls() const { return is_hls_; }
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bool is_webm() const { return is_webm_; }
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bool is_audio() const { return is_audio_; }
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bool IsEmpty() const { return data_.empty(); }
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const std::string& type() const { return type_; }
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const CdmInitData& data() const { return data_; }
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std::vector<uint8_t> hls_iv() const { return hls_iv_; }
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CdmHlsMethod hls_method() const { return hls_method_; }
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std::vector<video_widevine::WidevinePsshData_EntitledKey> ExtractWrappedKeys()
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const;
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private:
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bool SelectWidevinePssh(const CdmInitData& init_data,
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bool prefer_entitlements,
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CdmInitData* output);
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// Helpers used by SelectWidevinePssh().
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bool ExtractWidevinePsshs(const CdmInitData& init_data,
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std::vector<CdmInitData>* psshs);
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bool ExtractWidevinePsshData(const uint8_t* data,
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size_t length,
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CdmInitData* output);
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bool ExtractHlsAttributes(const std::string& attribute_list,
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CdmHlsMethod* method, std::vector<uint8_t>* iv,
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std::string* uri);
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static bool ConstructWidevineInitData(CdmHlsMethod method,
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const std::string& uri,
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CdmInitData* output);
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static bool ExtractQuotedAttribute(const std::string& attribute_list,
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const std::string& key,
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std::string* value);
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static bool ExtractHexAttribute(const std::string& attribute_list,
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const std::string& key,
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std::vector<uint8_t>* value);
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static bool ExtractAttribute(const std::string& attribute_list,
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const std::string& key, std::string* value);
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static std::vector<std::string> ExtractKeyFormatVersions(
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const std::string& key_format_versions);
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static bool DetectEntitlementPreference(
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const std::string& oec_version_string);
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// For testing only:
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#if defined(UNIT_TEST)
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FRIEND_TEST(HlsAttributeExtractionTest, ExtractAttribute);
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FRIEND_TEST(HlsConstructionTest, InitData);
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FRIEND_TEST(HlsInitDataConstructionTest, InvalidUriDataFormat);
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FRIEND_TEST(HlsInitDataConstructionTest, InvalidUriBase64Encode);
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FRIEND_TEST(HlsHexAttributeExtractionTest, ExtractHexAttribute);
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FRIEND_TEST(HlsKeyFormatVersionsExtractionTest, ExtractKeyFormatVersions);
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FRIEND_TEST(HlsParseTest, Parse);
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FRIEND_TEST(HlsQuotedAttributeExtractionTest, ExtractQuotedAttribute);
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FRIEND_TEST(HlsTest, ExtractHlsAttributes);
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#endif
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std::string type_;
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CdmInitData data_;
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bool is_cenc_;
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bool is_hls_;
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bool is_webm_;
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bool is_audio_;
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std::vector<uint8_t> hls_iv_;
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CdmHlsMethod hls_method_;
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};
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} // namespace wvcdm
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#endif // CORE_INCLUDE_INITIALIZATION_DATA_H_
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