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

#include <fixed_key_source.h>

Inheritance diagram for shaka::media::FixedKeySource:

Public Member Functions
KeySource implementation overrides.
Status	FetchKeys (const std::vector< uint8_t > &pssh_box) override

Status	FetchKeys (const std::vector< std::vector< uint8_t >> &key_ids) override

Status	FetchKeys (uint32_t asset_id) override

Status	GetKey (TrackType track_type, EncryptionKey *key) override

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

Status	GetCryptoPeriodKey (uint32_t crypto_period_index, TrackType track_type, EncryptionKey *key) override

Static Public Member Functions
static scoped_ptr< FixedKeySource >	CreateFromHexStrings (const std::string &key_id_hex, const std::string &key_hex, const std::string &pssh_boxes_hex, const std::string &iv_hex)

Static Public Member Functions inherited from shaka::media::KeySource
static TrackType	GetTrackTypeFromString (const std::string &track_type_string)
	Convert string representation of track type to enum representation.

static std::string	TrackTypeToString (TrackType track_type)
	Convert TrackType to string.

Additional Inherited Members
Public Types inherited from shaka::media::KeySource
enum	TrackType { TRACK_TYPE_UNKNOWN = 0, TRACK_TYPE_SD = 1, TRACK_TYPE_HD = 2, TRACK_TYPE_AUDIO = 3, TRACK_TYPE_UNSPECIFIED = 4, NUM_VALID_TRACK_TYPES = 4 }

Detailed Description

A key source that uses fixed keys for encryption.

Definition at line 27 of file fixed_key_source.h.

Member Function Documentation

scoped_ptr< FixedKeySource > shaka::media::FixedKeySource::CreateFromHexStrings	(	const std::string &	key_id_hex,
		const std::string &	key_hex,
		const std::string &	pssh_boxes_hex,
		const std::string &	iv_hex
	)

static

Creates a new FixedKeySource from the given hex strings. Returns null if the strings are invalid.

Parameters

key_id_hex	is the key id in hex string.
key_hex	is the key in hex string.
pssh_boxes_hex	is the pssh_boxes in hex string.
iv_hex	is the IV in hex string. If not specified, a randomly generated IV with the default length will be used. Note: GetKey on the created key source will always return the same key for all track types.

Definition at line 86 of file fixed_key_source.cc.

Status shaka::media::FixedKeySource::FetchKeys ( const std::vector< uint8_t > & pssh_box )

overridevirtual

Fetch keys for CENC from the key server.

Parameters

pssh_box The entire PSSH box for the content to be decrypted

Returns: OK on success, an error status otherwise.

Implements shaka::media::KeySource.

Definition at line 17 of file fixed_key_source.cc.

Status shaka::media::FixedKeySource::FetchKeys ( const std::vector< std::vector< uint8_t >> & key_ids )

overridevirtual

Fetch keys for CENC from the key server.

Parameters

key_ids the key IDs for the keys to fetch from the server.

Returns: OK on success, an error status otherwise.

Implements shaka::media::KeySource.

Definition at line 22 of file fixed_key_source.cc.

Status shaka::media::FixedKeySource::FetchKeys ( uint32_t asset_id )

overridevirtual

Fetch keys for WVM decryption from the key server.

Parameters

asset_id is the Widevine Classic asset ID for the content to be decrypted.

Returns: OK on success, an error status otherwise.

Implements shaka::media::KeySource.

Definition at line 28 of file fixed_key_source.cc.

Status shaka::media::FixedKeySource::GetCryptoPeriodKey	(	uint32_t	crypto_period_index,
		TrackType	track_type,
		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.
track_type	is the type of track 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 54 of file fixed_key_source.cc.

Status shaka::media::FixedKeySource::GetKey	(	TrackType	track_type,
		EncryptionKey *	key
	)

overridevirtual

Get encryption key of the specified track type.

Parameters

track_type	is the type of track 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 33 of file fixed_key_source.cc.

Status shaka::media::FixedKeySource::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 40 of file fixed_key_source.cc.

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

media/base/fixed_key_source.h
media/base/fixed_key_source.cc

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation