alexaClientSDK::playlistParser::ContentDecrypter Class Reference

#include <ContentDecrypter.h>

Inheritance diagram for alexaClientSDK::playlistParser::ContentDecrypter:

Collaboration diagram for alexaClientSDK::playlistParser::ContentDecrypter:

Public Member Functions
	ContentDecrypter ()
void	setMediaInitToDecryptedContent (const ByteVector &mediaInitSection, std::chrono::milliseconds totalDuration)
bool	decryptAndWrite (const ByteVector &encryptedContent, const ByteVector &key, const avsCommon::utils::playlistParser::EncryptionInfo &encryptionInfo, const std::shared_ptr< avsCommon::avs::attachment::AttachmentWriter > &streamWriter, const std::shared_ptr< Id3TagsRemover > &id3TagRemover)
RequiresShutdown methods.
void	doShutdown () override
Public Member Functions inherited from alexaClientSDK::avsCommon::utils::RequiresShutdown
	RequiresShutdown (const std::string &name)
virtual	~RequiresShutdown ()
	Destructor. More...
const std::string &	name () const
void	shutdown ()
bool	isShutdown () const

Static Public Member Functions
static bool	convertIVToByteArray (const std::string &hexIV, ByteVector *ivByteArray)

Additional Inherited Members

Detailed Description

Helper class to decrypt downloaded media content.

Constructor & Destructor Documentation

ContentDecrypter()

alexaClientSDK::playlistParser::ContentDecrypter::ContentDecrypter

(

)

Constructor

Member Function Documentation

convertIVToByteArray()

static bool alexaClientSDK::playlistParser::ContentDecrypter::convertIVToByteArray ( const std::string &  hexIV, ByteVector *  ivByteArray  )

static

Converts initialization vector from hex to byte array.

Parameters

	hexIV	The initialization vector in HEX.
[out]	ivByteArray	Pointer to result byte array if successful.

Returns

true if conversion is successful or false if failed.

decryptAndWrite()

bool alexaClientSDK::playlistParser::ContentDecrypter::decryptAndWrite	(	const ByteVector &	encryptedContent,
		const ByteVector &	key,
		const avsCommon::utils::playlistParser::EncryptionInfo &	encryptionInfo,
		const std::shared_ptr< avsCommon::avs::attachment::AttachmentWriter > &	streamWriter,
		const std::shared_ptr< Id3TagsRemover > &	id3TagRemover
	)

Decrypts contents and writes to stream.

Parameters

encryptedContent	The content that needs to be decrypted.
key	The encryption key.
encryptionInfo	The EncryptionInfo of the encrypted content.
streamWriter	The writer to write decrypted content.
id3TagRemover	A component to remove ID3 tags from content.

Returns

true if decryption and write to stream is successful or false otherwise.

doShutdown()

void alexaClientSDK::playlistParser::ContentDecrypter::doShutdown ( )

overridevirtual

Prepares/enables this object to be deleted. This should be the last function called on this object prior to deleting (or resetting) its shared_ptr.

Warning

• Attempting to call functions on this object after calling shutdown() can result in undefined behavior.
• Neglecting to call shutdown() on this object can result in resource leaks or other undefined behavior.

Implements alexaClientSDK::avsCommon::utils::RequiresShutdown.

setMediaInitToDecryptedContent()

void alexaClientSDK::playlistParser::ContentDecrypter::setMediaInitToDecryptedContent	(	const ByteVector &	mediaInitSection,
		std::chrono::milliseconds	totalDuration
	)

Sets Media initialization section to mp4a from enca.

Parameters

mediaInitSection	The Media initialization section.
totalDuration	Total duration of the content

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

• /workplace/avs-device-sdk/PlaylistParser/include/PlaylistParser/ContentDecrypter.h