Public Member Functions
	TrackRunIterator (const Movie *moov)

bool	Init ()

bool	Init (const MovieFragment &moof)

bool	IsRunValid () const

bool	IsSampleValid () const

void	AdvanceRun ()

void	AdvanceSample ()

bool	AuxInfoNeedsToBeCached ()

bool	CacheAuxInfo (const uint8_t *buf, int size)

int64_t	GetMaxClearOffset ()

const AudioSampleEntry &	audio_description () const
	Only valid if is_audio() is true.

const VideoSampleEntry &	video_description () const
	Only valid if is_video() is true.

std::unique_ptr< DecryptConfig >	GetDecryptConfig ()

Properties of the current run. Only valid if IsRunValid().
uint32_t	track_id () const

int64_t	aux_info_offset () const

int	aux_info_size () const

bool	is_encrypted () const

bool	is_audio () const

bool	is_video () const

Properties of the current sample. Only valid if IsSampleValid().
int64_t	sample_offset () const

int	sample_size () const

int64_t	dts () const

int64_t	cts () const

int64_t	duration () const

bool	is_keyframe () const

Detailed Description

Definition at line 25 of file track_run_iterator.h.

Constructor & Destructor Documentation

◆ TrackRunIterator()

shaka::media::mp4::TrackRunIterator::TrackRunIterator ( const Movie * moov )

explicit

Create a new TrackRunIterator from movie box.

Parameters

moov	should not be NULL.

Definition at line 89 of file track_run_iterator.cc.

Member Function Documentation

◆ AdvanceRun()

void shaka::media::mp4::TrackRunIterator::AdvanceRun ( )

Advance iterator to the next run. Require that the iterator point to a valid run.

Definition at line 442 of file track_run_iterator.cc.

◆ AdvanceSample()

void shaka::media::mp4::TrackRunIterator::AdvanceSample ( )

Advance iterator to the next sample. Require that the iterator point to a valid sample.

Definition at line 455 of file track_run_iterator.cc.

◆ AuxInfoNeedsToBeCached()

bool shaka::media::mp4::TrackRunIterator::AuxInfoNeedsToBeCached ( )

Returns: true if this track run has auxiliary information and has not yet been cached. Only valid if IsRunValid().

Definition at line 464 of file track_run_iterator.cc.

◆ CacheAuxInfo()

bool shaka::media::mp4::TrackRunIterator::CacheAuxInfo	(	const uint8_t *	buf,
		int	size
	)

Caches the CENC data from the given buffer.

Parameters

buf	must be a buffer starting at the offset given by cenc_offset().
size	must be at least cenc_size().

Returns: true on success, false on error.

Definition at line 471 of file track_run_iterator.cc.

◆ GetDecryptConfig()

std::unique_ptr< DecryptConfig > shaka::media::mp4::TrackRunIterator::GetDecryptConfig ( )

Only call when is_encrypted() is true and AuxInfoNeedsToBeCached() is false. Result is owned by caller.

Definition at line 605 of file track_run_iterator.cc.

◆ GetMaxClearOffset()

int64_t shaka::media::mp4::TrackRunIterator::GetMaxClearOffset ( )

Returns: the maximum buffer location at which no data earlier in the stream will be required in order to read the current or any subsequent sample. You may clear all data up to this offset before reading the current sample safely. Result is in the same units as offset() (for Media Source this is in bytes past the head of the MOOF box).

Definition at line 507 of file track_run_iterator.cc.

◆ Init() [1/2]

bool shaka::media::mp4::TrackRunIterator::Init ( )

For non-fragmented mp4, moov contains all the chunk information; This function sets up the iterator to access all the chunks. For fragmented mp4, chunk and sample information are generally contained in moof. This function is a no-op in this case. Init(moof) will be called later after parsing moof.

Returns: true on success, false otherwise.

Definition at line 162 of file track_run_iterator.cc.

◆ Init() [2/2]

bool shaka::media::mp4::TrackRunIterator::Init ( const MovieFragment & moof )

Set up the iterator to handle all the runs from the current fragment.

Returns: true on success, false otherwise.

Definition at line 287 of file track_run_iterator.cc.

◆ IsRunValid()

bool shaka::media::mp4::TrackRunIterator::IsRunValid ( ) const

Returns: true if the iterator points to a valid run, false if past the last run.

Definition at line 495 of file track_run_iterator.cc.

◆ IsSampleValid()

bool shaka::media::mp4::TrackRunIterator::IsSampleValid ( ) const

Returns: true if the iterator points to a valid sample, false if past the last sample.

Definition at line 497 of file track_run_iterator.cc.

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

packager/media/formats/mp4/track_run_iterator.h
packager/media/formats/mp4/track_run_iterator.cc

Public Member Functions