#include <mpd_builder.h>

Inheritance diagram for edash_packager::AdaptationSet:

Public Types
enum	Role { kRoleCaption, kRoleSubtitle, kRoleMain, kRoleAlternate, kRoleSupplementary, kRoleCommentary, kRoleDub }

Public Member Functions
virtual Representation *	AddRepresentation (const MediaInfo &media_info)

virtual void	AddContentProtectionElement (const ContentProtectionElement &element)

virtual void	UpdateContentProtectionPssh (const std::string &drm_uuid, const std::string &pssh)

virtual void	AddRole (Role role)

xml::ScopedXmlPtr< xmlNode >::type	GetXml ()

void	ForceSetSegmentAlignment (bool segment_alignment)

virtual void	SetGroup (int group_number)

virtual int	Group () const

uint32_t	id () const

void	OnNewSegmentForRepresentation (uint32_t representation_id, uint64_t start_time, uint64_t duration)

void	OnSetFrameRateForRepresentation (uint32_t representation_id, uint32_t frame_duration, uint32_t timescale)

Protected Member Functions
	AdaptationSet (uint32_t adaptation_set_id, const std::string &lang, const MpdOptions &mpd_options, MpdBuilder::MpdType mpd_type, base::AtomicSequenceNumber *representation_counter)

Friends
class	MpdBuilder

Detailed Description

AdaptationSet class provides methods to add Representations and <ContentProtection> elements to the AdaptationSet element.

Definition at line 156 of file mpd_builder.h.

Constructor & Destructor Documentation

edash_packager::AdaptationSet::AdaptationSet	(	uint32_t	adaptation_set_id,
		const std::string &	lang,
		const MpdOptions &	mpd_options,
		MpdBuilder::MpdType	mpd_type,
		base::AtomicSequenceNumber *	representation_counter
	)

protected

Parameters

adaptation_set_id	is an ID number for this AdaptationSet.
lang	is the language of this AdaptationSet. Mainly relevant for audio.
mpd_options	is the options for this MPD.
mpd_type	is the type of this MPD.
representation_counter	is a Counter for assigning ID numbers to Representation. It can not be NULL.

Definition at line 636 of file mpd_builder.cc.

Member Function Documentation

void edash_packager::AdaptationSet::AddContentProtectionElement ( const ContentProtectionElement & element )

virtual

Add a ContenProtection element to the adaptation set. AdaptationSet does not add <ContentProtection> elements automatically to itself even if media_info.protected_content is populated. This is because some MPDs should have the elements at AdaptationSet level and some at Representation level.

Parameters

element contains the ContentProtection element contents. If element has {value, schemeIdUri} set and has {“value”, “schemeIdUri”} as key for additional_attributes, then the former is used.

Definition at line 693 of file mpd_builder.cc.

Representation * edash_packager::AdaptationSet::AddRepresentation ( const MediaInfo & media_info )

virtual

Create a Representation instance using media_info.

Parameters

media_info is a MediaInfo object used to initialize the returned Representation instance.

Returns: On success, returns a pointer to Representation. Otherwise returns NULL. The returned pointer is owned by the AdaptationSet instance.

Definition at line 655 of file mpd_builder.cc.

void edash_packager::AdaptationSet::AddRole ( Role role )

virtual

Set the Role element for this AdaptationSet. The Role element's is schemeIdUri='urn:mpeg:dash:role:2011'. See ISO/IEC 23009-1:2012 section 5.8.5.5.

Parameters

role	of this AdaptationSet.

Definition at line 707 of file mpd_builder.cc.

void edash_packager::AdaptationSet::ForceSetSegmentAlignment ( bool segment_alignment )

Forces the (sub)segmentAlignment field to be set to segment_alignment. Use this if you are certain that the (sub)segments are alinged/unaligned for the AdaptationSet.

Parameters

segment_alignment is the value used for (sub)segmentAlignment attribute.

Definition at line 783 of file mpd_builder.cc.

xml::ScopedXmlPtr< xmlNode >::type edash_packager::AdaptationSet::GetXml ( )

Makes a copy of AdaptationSet xml element with its child Representation and ContentProtection elements.

Returns: On success returns a non-NULL ScopedXmlPtr. Otherwise returns a NULL ScopedXmlPtr.

Definition at line 713 of file mpd_builder.cc.

int edash_packager::AdaptationSet::Group ( ) const

virtual

Returns: Returns the value for group. If not set, returns a negative value.

Definition at line 793 of file mpd_builder.cc.

void edash_packager::AdaptationSet::OnNewSegmentForRepresentation	(	uint32_t	representation_id,
		uint64_t	start_time,
		uint64_t	duration
	)

Notifies the AdaptationSet instance that a new (sub)segment was added to the Representation with representation_id. This must be called every time a (sub)segment is added to a Representation in this AdaptationSet. If a Representation is constructed using AddRepresentation() this is called automatically whenever Representation::AddNewSegment() is is called.

Parameters

representation_id	is the id of the Representation with a new segment.
start_time	is the start time of the new segment.
duration	is the duration of the new segment.

Definition at line 804 of file mpd_builder.cc.

void edash_packager::AdaptationSet::OnSetFrameRateForRepresentation	(	uint32_t	representation_id,
		uint32_t	frame_duration,
		uint32_t	timescale
	)

Notifies the AdaptationSet instance that the sample duration for the Representation was set. The frame duration for a video Representation might not be specified when a Representation is created (by calling AddRepresentation()). This should be used to notify this instance that the frame rate for a Represenatation has been set. This method is called automatically when Represenatation::SetSampleDuration() is called if the Represenatation instance was created using AddRepresentation().

Parameters

representation_id	is the id of the Representation. is the duration of a frame in the Representation.
timescale	is the timescale of the Representation.

Definition at line 817 of file mpd_builder.cc.

void edash_packager::AdaptationSet::SetGroup ( int group_number )

virtual

Sets the AdaptationSet attribute. Passing a negative value to this method will unset the attribute. Note that group=0 is a special group, as mentioned in the DASH MPD specification.

Parameters

group_number is the value of AdaptatoinSet.

Definition at line 789 of file mpd_builder.cc.

void edash_packager::AdaptationSet::UpdateContentProtectionPssh	(	const std::string &	drm_uuid,
		const std::string &	pssh
	)

virtual

Update the 'cenc:pssh' element for drm_uuid ContentProtection element. If the element does not exist, this will add one.

Parameters

drm_uuid	is the UUID of the DRM for encryption.
pssh	is the content of <cenc:pssh> element. Note that DASH IF IOP mentions that this should be base64 encoded string of the whole pssh box.

Attention: This might get removed once DASH IF IOP specification makes a a clear guideline on how to handle key rotation. Also to get this working with shaka-player, this method DOES NOT update the PSSH element. Instead, it removes the element regardless of the content of pssh.

Definition at line 700 of file mpd_builder.cc.

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

mpd/base/mpd_builder.h
mpd/base/mpd_builder.cc

Public Types

Public Member Functions

Protected Member Functions

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation