MPD media track. More...

#include <MediaStreamContext.h>

Inheritance diagram for MediaStreamContext:

Collaboration diagram for MediaStreamContext:

Public Member Functions
	MediaStreamContext (AampLogManager logObj, TrackType type, StreamAbstractionAAMP_MPD ctx, PrivateInstanceAAMP aamp, const char name)
	MediaStreamContext Constructor. More...

	~MediaStreamContext ()
	MediaStreamContext Destructor.

	MediaStreamContext (const MediaStreamContext &)=delete
	MediaStreamContext Copy Constructor.

MediaStreamContext &	operator= (const MediaStreamContext &)=delete
	MediaStreamContext Assignment operator overloading.

StreamAbstractionAAMP *	GetContext ()
	Get the context of media track. To be implemented by subclasses. More...

void	InjectFragmentInternal (CachedFragment *cachedFragment, bool &fragmentDiscarded)
	Receives cached fragment and injects to sink. More...

bool	CacheFragment (std::string fragmentUrl, unsigned int curlInstance, double position, double duration, const char *range=NULL, bool initSegment=false, bool discontinuity=false, bool playingAd=false, double pto=0, uint32_t scale=0, bool overWriteTrackId=false)
	Fetch and cache a fragment. More...

bool	CacheFragmentChunk (MediaType actualType, char *ptr, size_t size, std::string remoteUrl, long long dnldStartTime)
	Cache Fragment Chunk. More...

void	ABRProfileChanged (void)
	Listener to ABR profile change.

double	GetBufferedDuration ()
	Get duration of buffer.

void	SignalTrickModeDiscontinuity ()
	Notify discontinuity during trick-mode as PTS re-stamping is done in sink. More...

bool	IsAtEndOfTrack ()
	Returns if the end of track reached. More...

Public Member Functions inherited from MediaTrack
	MediaTrack (AampLogManager logObj, TrackType type, PrivateInstanceAAMP aamp, const char *name)
	MediaTrack Constructor.

virtual	~MediaTrack ()
	MediaTrack Destructor.

	MediaTrack (const MediaTrack &)=delete
	MediaTrack Copy Constructor.

MediaTrack &	operator= (const MediaTrack &)=delete
	MediaTrack assignment operator overloading.

void	StartInjectLoop ()
	Start fragment injector loop. More...

void	StartInjectChunkLoop ()
	Start fragment Chunk injector loop. More...

void	StopInjectLoop ()
	Stop fragment injector loop. More...

void	StopInjectChunkLoop ()
	Stop fragment chunk injector loop of track. More...

bool	Enabled ()
	Check if a track is enabled. More...

bool	InjectFragment ()
	Inject fragment into the gstreamer. More...

bool	ProcessFragmentChunk ()
	Process next cached fragment chunk.

bool	InjectFragmentChunk ()
	Inject fragment Chunk into the gstreamer. More...

double	GetTotalInjectedDuration ()
	Get total fragment injected duration. More...

double	GetTotalInjectedChunkDuration ()
	Get total fragment chunk injected duration. More...

void	RunInjectLoop ()
	Injection loop - use internally by injection logic. More...

void	RunInjectChunkLoop ()
	Run fragment injector loop. Injection loop - use internally by injection logic. More...

void	UpdateTSAfterFetch ()
	Updates internal state after a fragment fetch. More...

void	UpdateTSAfterChunkFetch ()
	Updates internal state after a fragment fetch. More...

bool	WaitForFreeFragmentAvailable (int timeoutMs=-1)
	Wait until a free fragment is available. More...

void	AbortWaitForCachedAndFreeFragment (bool immediate)
	Abort the waiting for cached fragments and free fragment slot. More...

int	GetTotalFragmentsFetched ()
	Get number of fragments dpownloaded. More...

CachedFragment *	GetFetchBuffer (bool initialize)
	Get buffer to store the downloaded fragment content to cache next fragment. More...

CachedFragmentChunk *	GetFetchChunkBuffer (bool initialize)
	Get buffer to fetch and cache next fragment chunk. More...

void	SetCurrentBandWidth (int bandwidthBps)
	Set current bandwidth of track. More...

int	GetProfileIndexForBW (long mTsbBandwidth)
	Get profile index for TsbBandwidth. More...

int	GetCurrentBandWidth ()
	Get current bandwidth in bps. More...

double	GetTotalFetchedDuration ()
	Get total duration of fetched fragments. More...

double	GetTotalInjectedChunksDuration ()
	Get total duration of fetched fragments. More...

bool	IsDiscontinuityProcessed ()
	Check if discontinuity is being processed. More...

bool	isFragmentInjectorThreadStarted ()

void	MonitorBufferHealth ()

void	ScheduleBufferHealthMonitor ()

BufferHealthStatus	GetBufferStatus ()
	Get buffer Status of track. More...

BufferHealthStatus	GetBufferHealthStatus ()
	Get buffer health status. More...

void	AbortWaitForCachedFragment ()
	Abort the waiting for cached fragments immediately. More...

bool	IsInjectionAborted ()
	Check whether track data injection is aborted. More...

bool	CheckForFutureDiscontinuity (double &cacheDuration)
	To check for discontinuity in future fragments. More...

void	OnSinkBufferFull ()
	Called if sink buffer is full. More...

void	FlushFragments ()
	Flushes all cached fragments Flushes all media fragments and resets all relevant counters Only intended for use on subtitle streams. More...

void	FlushFragmentChunks ()
	Flushes all cached fragment Chunks. More...

Data Fields
MediaType	mediaType

CMCDHeaders *	pCMCDMetrics

struct FragmentDescriptor	fragmentDescriptor

const IAdaptationSet *	adaptationSet

const IRepresentation *	representation

int	fragmentIndex

int	timeLineIndex

int	fragmentRepeatCount

uint64_t	fragmentOffset

bool	eos

bool	profileChanged

bool	discontinuity

GrowableBuffer	mDownloadedFragment

double	fragmentTime

double	downloadedDuration

double	periodStartOffset

uint64_t	timeStampOffset

char *	index_ptr

size_t	index_len

uint64_t	lastSegmentTime

uint64_t	lastSegmentNumber

uint64_t	lastSegmentDuration

int	adaptationSetIdx

int	representationIndex

StreamAbstractionAAMP_MPD *	context

std::string	initialization

uint32_t	adaptationSetId

bool	mSkipSegmentOnError

double	scaledPTO

bool	failAdjacentSegment

long	httpErrorCode

Data Fields inherited from MediaTrack
bool	eosReached

bool	enabled

int	numberOfFragmentsCached

int	numberOfFragmentChunksCached

const char *	name

double	fragmentDurationSeconds

int	segDLFailCount

int	segDrmDecryptFailCount

int	mSegInjectFailCount

TrackType	type

std::unique_ptr< SubtitleParser >	mSubtitleParser

bool	refreshSubtitles

int	maxCachedFragmentsPerTrack

int	maxCachedFragmentChunksPerTrack

pthread_cond_t	fragmentChunkFetched

uint32_t	totalMdatCount

int	noMDATCount

Additional Inherited Members
Protected Member Functions inherited from MediaTrack
void	UpdateTSAfterInject ()
	Update segment cache and inject buffer to gstreamer. More...

void	UpdateTSAfterChunkInject ()
	Update segment cache and inject buffer to gstreamer. More...

bool	WaitForCachedFragmentAvailable ()
	Wait till cached fragment available. More...

bool	WaitForCachedFragmentChunkInjected (int timeoutMs=-1)
	Wait until a cached fragment chunk is Injected. More...

bool	WaitForCachedFragmentChunkAvailable ()
	Wait till cached fragment chunk available. More...

void	InjectFragmentChunkInternal (MediaType mediaType, GrowableBuffer *buffer, double fpts, double fdts, double fDuration)
	To be implemented by derived classes to receive cached fragment Chunk Receives cached fragment and injects to sink. More...

Static Protected Member Functions inherited from MediaTrack
static int	GetDeferTimeMs (long maxTimeSeconds)

Protected Attributes inherited from MediaTrack
AampLogManager *	mLogObj

PrivateInstanceAAMP *	aamp

CachedFragment *	cachedFragment

CachedFragmentChunk	cachedFragmentChunks [20]

GrowableBuffer	unparsedBufferChunk

GrowableBuffer	parsedBufferChunk

bool	abort

pthread_mutex_t	mutex

bool	ptsError

bool	abortInject

bool	abortInjectChunk

yes

MPD media track.

Definition at line 35 of file MediaStreamContext.h.

Constructor & Destructor Documentation

◆ MediaStreamContext()

MediaStreamContext::MediaStreamContext	(	AampLogManager *	logObj,
		TrackType	type,
		StreamAbstractionAAMP_MPD *	ctx,
		PrivateInstanceAAMP *	aamp,
		const char *	name
	)

inline

MediaStreamContext Constructor.

Parameters

type	Type of track
ctx	context MPD collector context
aamp	Pointer to associated aamp instance
name	Name of the track

Definition at line 45 of file MediaStreamContext.h.

Member Function Documentation

◆ GetContext()

StreamAbstractionAAMP* MediaStreamContext::GetContext ( )

inlinevirtual

Get the context of media track. To be implemented by subclasses.

Return values

Context of track.

Implements MediaTrack.

Definition at line 94 of file MediaStreamContext.h.

◆ InjectFragmentInternal()

MediaStreamContext::InjectFragmentInternal	(	CachedFragment *	cachedFragment,
		bool &	fragmentDiscarded
	)

virtual

Receives cached fragment and injects to sink.

Parameters

[in]	cachedFragment	- contains fragment to be processed and injected
[out]	fragmentDiscarded	- true if fragment is discarded.

Implements MediaTrack.

Definition at line 33 of file MediaStreamContext.cpp.

◆ CacheFragment()

MediaStreamContext::CacheFragment	(	std::string	fragmentUrl,
		unsigned int	curlInstance,
		double	position,
		double	duration,
		const char *	range = `NULL`,
		bool	initSegment = `false`,
		bool	discontinuity = `false`,
		bool	playingAd = `false`,
		double	pto = `0`,
		uint32_t	scale = `0`,
		bool	overWriteTrackId = `false`
	)

Fetch and cache a fragment.

Parameters

fragmentUrl	url of fragment
curlInstance	curl instance to be used to fetch
position	position of fragment in seconds
duration	duration of fragment in seconds
range	byte range
initSegment	true if fragment is init fragment
discontinuity	true if fragment is discontinuous
playingAd	flag if playing Ad
pto	unscaled pto value from mpd
scale	timeScale value from mpd
overWriteTrackId	flag to overwrite the trackID of the init fragment with the current one if those are different

Return values

true	on success

Definition at line 55 of file MediaStreamContext.cpp.

◆ CacheFragmentChunk()

bool MediaStreamContext::CacheFragmentChunk	(	MediaType	actualType,
		char *	ptr,
		size_t	size,
		std::string	remoteUrl,
		long long	dnldStartTime
	)

Cache Fragment Chunk.

Parameters

actualType	MediaType type of cached media
ptr	CURL provided chunk data
size	CURL provided chunk data size
remoteUrl	url of fragment
dnldStartTime	of the download

Definition at line 309 of file MediaStreamContext.cpp.

◆ SignalTrickModeDiscontinuity()

MediaStreamContext::SignalTrickModeDiscontinuity ( )

virtual

Notify discontinuity during trick-mode as PTS re-stamping is done in sink.

Returns: void

Reimplemented from MediaTrack.

Definition at line 413 of file MediaStreamContext.cpp.

◆ IsAtEndOfTrack()

MediaStreamContext::IsAtEndOfTrack ( )

virtual

Returns if the end of track reached.

Returns: true - If yes

Reimplemented from MediaTrack.

Definition at line 422 of file MediaStreamContext.cpp.

Field Documentation

◆ pCMCDMetrics

CMCDHeaders* MediaStreamContext::pCMCDMetrics

pointer object to class CMCDHeaders

Definition at line 156 of file MediaStreamContext.h.

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

components/generic/aamp/MediaStreamContext.h
components/generic/aamp/MediaStreamContext.cpp
components/generic/aamp/test/utests/fakes/FakeMediaStreamContext.cpp

Public Member Functions

Data Fields

Additional Inherited Members

yes

Constructor & Destructor Documentation

◆ MediaStreamContext()

Member Function Documentation

◆ GetContext()

◆ InjectFragmentInternal()

◆ CacheFragment()

◆ CacheFragmentChunk()

◆ SignalTrickModeDiscontinuity()

◆ IsAtEndOfTrack()

Field Documentation

◆ pCMCDMetrics