StreamPlaybackUtil_zlib mimics video stream. More...

#include <stream_util_zlib.hpp>

Inheritance diagram for kanzi::connect::StreamPlaybackUtil_zlib:

Public Member Functions
bool	doDecode (const string &in, vector< char > &out) KZ_OVERRIDE
	Decode frame from buffer. More...

	~StreamPlaybackUtil_zlib () KZ_OVERRIDE
	Destructor. More...

Public Member Functions inherited from kanzi::connect::ConnectStreamPlaybackUtil
const string &	getAuxData () const
	Get the optional data from encoder or stream provider. More...

void	startDecoderThread ()
	Perform decoding on a dedicated thread. Deriving class should call this function after it has initialized the infra for decoding. More...

void	stopDecoderThread ()
	Perform decoding on main thread. Releases Decoder thread if it exists. More...

	~ConnectStreamPlaybackUtil () KZ_OVERRIDE
	Destructor. More...

kzUint	getWidth () KZ_OVERRIDE

kzUint	getHeight () KZ_OVERRIDE
	Gets height of video frame. More...

kanzi::FramebufferSharedPtr	getNextRenderBuffer () KZ_OVERRIDE

void	onRendering () KZ_OVERRIDE
	notify frame consumed More...

Public Member Functions inherited from kanzi::connect::StreamPlaybackUtil
virtual	~StreamPlaybackUtil ()

Static Public Member Functions
static shared_ptr< StreamPlaybackUtil_zlib >	create (Domain &domain, const string &filename, function< void()> onProcessSampleTask, FrameBufferFactorySharedPtr bufferFactory, const int maxQueueSize)

Static Public Member Functions inherited from kanzi::connect::ConnectStreamPlaybackUtil
static shared_ptr< ConnectStreamPlaybackUtil >	create (Domain &domain, const string &streamId, function< void()> onProcessSampleTask, FrameBufferFactorySharedPtr bufferFactory)
	Create new stream playback util. More...

Additional Inherited Members
Protected Member Functions inherited from kanzi::connect::ConnectStreamPlaybackUtil
	ConnectStreamPlaybackUtil (function< void()> onProcessSampleTask, int queueMaxLength, bool dropOldOnKeyFrame)
	Constructor. More...

bool	hasConfigFrame (const StreamNewBlobEvent &blobMessage) const
	Check if the message contains a configuration frame for the encoder. More...

bool	hasKeyFrame (const StreamNewBlobEvent &blobMessage) const
	Check if the message contains a key frame. More...

bool	hasPartialFrame (const StreamNewBlobEvent &blobMessage) const
	Check if the message contains a partial frame. More...

bool	initialize (Domain &domain, const string &streamId, FrameBufferFactorySharedPtr bufferFactory) KZ_OVERRIDE
	Initializes video util. More...

bool	queueHasSpace () const
	Check if the data queue has space to add more items. More...

void	queueRenderBuffer (FramebufferSharedPtr framebuffer)
	Add a buffer to ui-queue. More...

virtual void	remoteSettingsChanged (bool wasValid, bool isValid)
	Callback from runtime data observer. More...

void	requestEncoderParameter (const string &parameterName) const

void	requestStreamInfo () const

void	restartEncoder () const

void	setEncoderParameter (const string &parameterName, const string &parameterValue) const

virtual bool	shouldProcessThisFrame (const StreamNewBlobEvent &blobMessage)
	Check if this message should be passed to the decoder Decoder implementations should implement this function e.g. More...

void	uninitialize () KZ_OVERRIDE
	Uninitializes video util. More...

virtual void	updateVideoSurfaceTexture ()
	Populate framebuffer with data received from doDecode and queue render buffer for UI. More...

Detailed Description

StreamPlaybackUtil_zlib mimics video stream.

Constructor & Destructor Documentation

◆ ~StreamPlaybackUtil_zlib()

kanzi::connect::StreamPlaybackUtil_zlib::~StreamPlaybackUtil_zlib ( )

Destructor.

Member Function Documentation

◆ create()

static shared_ptr<StreamPlaybackUtil_zlib> kanzi::connect::StreamPlaybackUtil_zlib::create	(	Domain &	domain,
		const string &	filename,
		function< void()>	onProcessSampleTask,
		FrameBufferFactorySharedPtr	bufferFactory,
		const int	maxQueueSize
	)

static

Parameters

filename uri of video file to load.

◆ doDecode()

bool kanzi::connect::StreamPlaybackUtil_zlib::doDecode	(	const string &	in,
		vector< char > &	out
	)

virtual

Decode frame from buffer.

If output is pixel data, provide it to output buffer and return true. Depending on threading strategy, runs either on dedicated thread or within the main thread,

See also: startDecoderThread()

Parameters

in	Input buffer as raw string. Connect infra has no knowledge on the contents. May contain a full or partial frame.
out	Optional. If decoder provides pixels to be rendered, they need to be populated here. Decoder may use received input and pass a gpu handle to kanzi using getNextRenderBuffer instead.

Returns: Return true if output buffer is to be used. Class asks Kanzi to re-render if true is returned and creates new framebuffer with data.

Reimplemented from kanzi::connect::ConnectStreamPlaybackUtil.

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

connect/kanzi_adaptation/viewport/stream_util_zlib.hpp

Public Member Functions