edash_packager Namespace Reference

Classes
struct	Element
struct	ContentProtectionElement
class	DashIopMpdNotifier
class	MockMpdBuilder
class	MockAdaptationSet
class	MockRepresentation
class	MockMpdNotifier
class	MpdBuilder
	This class generates DASH MPDs (Media Presentation Descriptions). More...
class	AdaptationSet
class	RepresentationStateChangeListener
class	Representation
class	MpdNotifier
struct	MpdOptions
	Defines Mpd Options. More...
struct	SegmentInfo
class	SimpleMpdNotifier
class	MpdNotifierFactory
class	MpdWriter

Enumerations
enum	DashProfile { kUnknownProfile, kOnDemandProfile, kLiveProfile }
enum	ContentType { kContentTypeUnknown, kContentTypeVideo, kContentTypeAudio, kContentTypeText }

Functions
bool	ValidateFixedCryptoFlags ()
bool	ValidateFlag (const char *flag_name, const std::string &flag_value, bool condition, bool optional, const char *label)
void	PrintError (const std::string &error_message)
bool	ValidateWidevineCryptoFlags ()
std::string	LanguageToShortestForm (const std::string &language)
std::string	LanguageToISO_639_2 (const std::string &language)
bool	WriteMpdToFile (const std::string &output_path, MpdBuilder *mpd_builder)
ContentType	GetContentType (const MediaInfo &media_info)
std::string	Uint8VectorToBase64 (const std::vector< uint8_t > &input)
	Converts uint8 vector into base64 encoded string.
bool	HasVODOnlyFields (const MediaInfo &media_info)
bool	HasLiveOnlyFields (const MediaInfo &media_info)
void	RemoveDuplicateAttributes (ContentProtectionElement *content_protection_element)
std::string	GetLanguage (const MediaInfo &media_info)
std::string	GetCodecs (const MediaInfo &media_info)
std::string	GetBaseCodec (const MediaInfo &media_info)
std::string	GetAdaptationSetKey (const MediaInfo &media_info)
std::string	SecondsToXmlDuration (double seconds)
bool	GetDurationAttribute (xmlNodePtr node, float *duration)
bool	MoreThanOneTrue (bool b1, bool b2, bool b3)
bool	AtLeastOneTrue (bool b1, bool b2, bool b3)
bool	OnlyOneTrue (bool b1, bool b2, bool b3)
bool	HexToUUID (const std::string &data, std::string *uuid_format)
void	UpdateContentProtectionPsshHelper (const std::string &drm_uuid, const std::string &pssh, std::list< ContentProtectionElement > *content_protection_elements)
void	AddContentProtectionElements (const MediaInfo &media_info, Representation *parent)
void	AddContentProtectionElements (const MediaInfo &media_info, AdaptationSet *parent)

Variables
const char	kEncryptedMp4Scheme [] = "urn:mpeg:dash:mp4protection:2011"
const char	kPsshElementName [] = "cenc:pssh"
const char	kEncryptedMp4Value [] = "cenc"

Detailed Description

NOTE: Inclusion of this module will cause curl_global_init and curl_global_cleanup to be called at static initialization / deinitialization time.

All the methods that are virtual are virtual for mocking. NOTE: Inclusion of this module will cause xmlInitParser and xmlCleanupParser to be called at static initialization / deinitialization time.

This file contains helper functions and enums for MpdNotifier implementations.

Function Documentation

void edash_packager::AddContentProtectionElements	(	const MediaInfo &	media_info,
		Representation *	parent
	)

Adds <ContentProtection> elements specified by media_info to adaptation_set. Note that this will add the elements as direct chlidren of AdaptationSet.

Parameters

media_info	may or may not have protected_content field.
adaptation_set	is the parent element that owns the ContentProtection elements.

Definition at line 338 of file mpd_utils.cc.

void edash_packager::AddContentProtectionElements	(	const MediaInfo &	media_info,
		AdaptationSet *	parent
	)

Adds <ContentProtection> elements specified by media_info to representation.

Parameters

media_info	may or may not have protected_content field.
representation	is the parent element that owns the ContentProtection elements.

Definition at line 343 of file mpd_utils.cc.

ContentType edash_packager::GetContentType

(

const MediaInfo &

media_info

)

Determines the content type of |media_info|.

Parameters

media_info

is the information about the media.

Returns

content type of the media_info.

Definition at line 51 of file mpd_notifier_util.cc.

bool edash_packager::HexToUUID	(	const std::string &	data,
		std::string *	uuid_format
	)

Converts hex data to UUID format. Hex data must be size 16.

Parameters

data	input hex data.
uuid_format	is the UUID format of the input.

Definition at line 175 of file mpd_utils.cc.

std::string edash_packager::LanguageToISO_639_2

(

const std::string &

language

)

Convert a language tag to a 3-letter ISO-639-2 code, as required by the ISO BMFF spec. The input is assumed to be a valid ISO-639-2 or ISO-639-1 language code. Regions and variants are not supported.

Definition at line 112 of file language_utils.cc.

std::string edash_packager::LanguageToShortestForm

(

const std::string &

language

)

Convert a language tag to its shortest form, as required by RFC 5646 indicated in the MPD spec. Assumes the input is a valid ISO-639-2 or ISO-639-1 language tag. Regions and variants are not supported.

Definition at line 89 of file language_utils.cc.

void edash_packager::PrintError

(

const std::string &

error_message

)

Format and print error message.

Parameters

error_message

specifies the error message.

Definition at line 36 of file validate_flag.cc.

bool edash_packager::ValidateFixedCryptoFlags

(

)

Validate fixed encryption/decryption flags.

Returns

true on success, false otherwise.

Definition at line 29 of file fixed_key_encryption_flags.cc.

bool edash_packager::ValidateFlag	(	const char *	flag_name,
		const std::string &	flag_value,
		bool	condition,
		bool	optional,
		const char *	label
	)

Validate a flag against the given condition.

Parameters

flag_name	is the name of the flag.
flag_value	is the value of the flag.
condition,optional	determines how the flag should be validated. If condition is true and optional is false, then this flag is required
label	specifies the label associated with the condition. It is used to generate the error message on validation failure.

Returns

true on success, false otherwise.

Definition at line 17 of file validate_flag.cc.

bool edash_packager::ValidateWidevineCryptoFlags

(

)

Validate widevine encryption/decryption flags.

Returns

true on success, false otherwise.

Definition at line 60 of file widevine_encryption_flags.cc.

bool edash_packager::WriteMpdToFile	(	const std::string &	output_path,
		MpdBuilder *	mpd_builder
	)

Outputs MPD to output_path.

Parameters

output_path	is the path to the MPD output location.
mpd_builder	is the MPD builder instance.

Definition at line 20 of file mpd_notifier_util.cc.