355471c408
[ Merge of http://go/wvgerrit/16290 ] HLS uses an EXT-X-KEY tag and attribute list in the media playlist to identify the key and method used to encrypt media segments. This allows for the attributes to be parsed and extracted. b/20630275 Change-Id: I2c4a419022f933b7b34b64dc48930f167abe65c6
68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
// Copyright 2014 Google Inc. All Rights Reserved.
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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 "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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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 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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const CdmHlsData& hls_data() const { return hls_data_; }
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private:
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// Parse a blob of multiple concatenated PSSH atoms to extract the first
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// Widevine PSSH.
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bool ExtractWidevinePssh(const CdmInitData& init_data, 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, CdmInitData* init_data);
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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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// 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(HlsParseTest, Parse);
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FRIEND_TEST(HlsTest, ExtractHlsAttributes);
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FRIEND_TEST(HlsHexAttributeExtractionTest, ExtractHexAttribute);
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FRIEND_TEST(HlsQuotedAttributeExtractionTest, ExtractQuotedAttribute);
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#endif
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std::string type_;
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CdmInitData data_;
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CdmHlsData hls_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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};
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} // namespace wvcdm
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#endif // CORE_INCLUDE_INITIALIZATION_DATA_H_
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