shaka::media::mp4::Fragmenter Class Reference

#include <fragmenter.h>

Public Member Functions
	Fragmenter (std::shared_ptr< const StreamInfo > info, TrackFragment *traf, int64_t edit_list_offset)
Status	AddSample (const MediaSample &sample)
Status	InitializeFragment (int64_t first_sample_dts)
Status	FinalizeFragment ()
	Finalize and optimize the fragment.
void	GenerateSegmentReference (SegmentReference *reference) const
	Fill reference with current fragment information.
void	ClearFragmentFinalized ()
int64_t	fragment_duration () const
int64_t	first_sap_time () const
int64_t	earliest_presentation_time () const
bool	fragment_initialized () const
bool	fragment_finalized () const
BufferWriter *	data ()
const std::vector< KeyFrameInfo > &	key_frame_infos () const

Protected Member Functions
TrackFragment *	traf ()
template<typename T >
bool	OptimizeSampleEntries (std::vector< T > *entries, T *default_value)

Detailed Description

Fragmenter is responsible for the generation of MP4 fragments, i.e. 'traf' box and corresponding 'mdat' box.

Definition at line 34 of file fragmenter.h.

Constructor & Destructor Documentation

Fragmenter()

shaka::media::mp4::Fragmenter::Fragmenter	(	std::shared_ptr< const StreamInfo >	info,
		TrackFragment *	traf,
		int64_t	edit_list_offset
	)

Parameters

info	contains stream information.
traf	points to a TrackFragment box.
edit_list_offset	is the edit list offset that is encoded in Edit List. It should be 0 if there is no EditList.

Definition at line 52 of file fragmenter.cc.

~Fragmenter()

shaka::media::mp4::Fragmenter::~Fragmenter

(

)

Definition at line 65 of file fragmenter.cc.

Member Function Documentation

AddSample()

Status shaka::media::mp4::Fragmenter::AddSample

(

const MediaSample &

sample

)

Add a sample to the fragmenter.

Parameters

sample

points to the sample to be added.

Returns

OK on success, an error status otherwise.

Definition at line 67 of file fragmenter.cc.

ClearFragmentFinalized()

void shaka::media::mp4::Fragmenter::ClearFragmentFinalized ( )

inline

Definition at line 63 of file fragmenter.h.

data()

BufferWriter * shaka::media::mp4::Fragmenter::data ( )

inline

Definition at line 72 of file fragmenter.h.

earliest_presentation_time()

int64_t shaka::media::mp4::Fragmenter::earliest_presentation_time ( ) const

inline

Definition at line 67 of file fragmenter.h.

FinalizeFragment()

Status shaka::media::mp4::Fragmenter::FinalizeFragment

(

)

Finalize and optimize the fragment.

Definition at line 161 of file fragmenter.cc.

first_sap_time()

int64_t shaka::media::mp4::Fragmenter::first_sap_time ( ) const

inline

Definition at line 66 of file fragmenter.h.

fragment_duration()

int64_t shaka::media::mp4::Fragmenter::fragment_duration ( ) const

inline

Definition at line 65 of file fragmenter.h.

fragment_finalized()

bool shaka::media::mp4::Fragmenter::fragment_finalized ( ) const

inline

Definition at line 71 of file fragmenter.h.

fragment_initialized()

bool shaka::media::mp4::Fragmenter::fragment_initialized ( ) const

inline

Definition at line 70 of file fragmenter.h.

GenerateSegmentReference()

void shaka::media::mp4::Fragmenter::GenerateSegmentReference

(

SegmentReference *

reference

)

const

Fill reference with current fragment information.

Definition at line 229 of file fragmenter.cc.

InitializeFragment()

Status shaka::media::mp4::Fragmenter::InitializeFragment

(

int64_t

first_sample_dts

)

Initialize the fragment with default data.

Parameters

first_sample_dts

specifies the decoding timestamp for the first sample for this fragment.

Returns

OK on success, an error status otherwise.

Definition at line 131 of file fragmenter.cc.

key_frame_infos()

const std::vector< KeyFrameInfo > & shaka::media::mp4::Fragmenter::key_frame_infos ( ) const

inline

Definition at line 73 of file fragmenter.h.

OptimizeSampleEntries()

template<typename T >

bool shaka::media::mp4::Fragmenter::OptimizeSampleEntries ( std::vector< T > *  entries, T *  default_value  )

protected

Optimize sample entries table. If all values in entries are identical, then entries is cleared and the value is assigned to default_value; otherwise it is a NOP. Return true if the table is optimized.

Definition at line 108 of file fragmenter.h.

traf()

TrackFragment * shaka::media::mp4::Fragmenter::traf ( )

inlineprotected

Definition at line 78 of file fragmenter.h.

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

• packager/media/formats/mp4/fragmenter.h
• packager/media/formats/mp4/fragmenter.cc