shaka::media::RawKeySource Class Reference

A key source that uses raw keys for encryption. More...

#include <raw_key_source.h>

Inheritance diagram for shaka::media::RawKeySource:

Public Member Functions
KeySource implementation overrides.
Status	FetchKeys (EmeInitDataType init_data_type, const std::vector< uint8_t > &init_data) override
Status	GetKey (const std::string &stream_label, EncryptionKey *key) override
Status	GetKey (const std::vector< uint8_t > &key_id, EncryptionKey *key) override
Status	GetCryptoPeriodKey (uint32_t crypto_period_index, uint32_t crypto_period_duration_in_seconds, const std::string &stream_label, EncryptionKey *key) override
Public Member Functions inherited from shaka::media::KeySource
	KeySource (int protection_systems_flags, FourCC protection_scheme)

Static Public Member Functions
static std::unique_ptr< RawKeySource >	Create (const RawKeyParams &raw_key, int protection_system_flags, FourCC protection_scheme)

Additional Inherited Members
Protected Member Functions inherited from shaka::media::KeySource
Status	UpdateProtectionSystemInfo (EncryptionKeyMap *encryption_key_map)

Detailed Description

A key source that uses raw keys for encryption.

Definition at line 21 of file raw_key_source.h.

Member Function Documentation

Create()

std::unique_ptr< RawKeySource > shaka::media::RawKeySource::Create ( const RawKeyParams &  raw_key, int  protection_system_flags, FourCC  protection_scheme  )

static

Creates a new RawKeySource from the given data. Returns null if the parameter is malformed.

Parameters

raw_key	contains parameters to setup the key source.
protection_systems_flags	is the flags indicating which PSSH should be included.
protection_scheme	is the Protection Scheme to be used for encryption. It needs to be signalled in Widevine PSSH. This argument can be ignored if Widevine PSSH is not generated.

Definition at line 99 of file raw_key_source.cc.

FetchKeys()

Status shaka::media::RawKeySource::FetchKeys ( EmeInitDataType  init_data_type, const std::vector< uint8_t > &  init_data  )

overridevirtual

Fetch keys based on the specified encrypted media init data.

Parameters

init_data_type	specifies the encrypted media init data type.
init_data	contains the init data.

Returns

OK on success, an error status otherwise.

Implements shaka::media::KeySource.

Definition at line 24 of file raw_key_source.cc.

GetCryptoPeriodKey()

Status shaka::media::RawKeySource::GetCryptoPeriodKey ( uint32_t  crypto_period_index, uint32_t  crypto_period_duration_in_seconds, const std::string &  stream_label, EncryptionKey *  key  )

overridevirtual

Get encryption key of the specified track type at the specified index.

Parameters

crypto_period_index	is the sequence number of the key rotation period for which the key is being retrieved.
crypto_period_duration_in_seconds	is the duration of the crypto period in seconds.
stream_label	is the label of stream for which retrieving the key.
key	is a pointer to the EncryptionKey which will hold the retrieved key. Owner retains ownership, and may not be NULL.

Returns

OK on success, an error status otherwise.

Implements shaka::media::KeySource.

Definition at line 61 of file raw_key_source.cc.

GetKey() [1/2]

Status shaka::media::RawKeySource::GetKey ( const std::string &  stream_label, EncryptionKey *  key  )

overridevirtual

Get encryption key of the specified stream label.

Parameters

stream_label	is the label of stream for which retrieving the key.
key	is a pointer to the EncryptionKey which will hold the retrieved key. Owner retains ownership, and may not be NULL.

Returns

OK on success, an error status otherwise.

Implements shaka::media::KeySource.

Definition at line 30 of file raw_key_source.cc.

GetKey() [2/2]

Status shaka::media::RawKeySource::GetKey ( const std::vector< uint8_t > &  key_id, EncryptionKey *  key  )

overridevirtual

Get the encryption key specified by the CENC key ID.

Parameters

key_id	is the unique identifier for the key being retreived.
key	is a pointer to the EncryptionKey which will hold the retrieved key. Owner retains ownership, and may not be NULL.

Returns

OK on success, or an error status otherwise.

Implements shaka::media::KeySource.

Definition at line 47 of file raw_key_source.cc.

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The documentation for this class was generated from the following files:

• packager/media/base/raw_key_source.h
• packager/media/base/raw_key_source.cc