GStreamer Graph Class. More...

#include <moGsGraph.h>

Inheritance diagram for moGsGraph:

Public Member Functions
	moGsGraph ()
	Constructor. More...

virtual	~moGsGraph ()
	Destructor. More...

virtual bool	InitGraph ()
	Inicialización del grafo. More...

virtual bool	FinishGraph ()
	Finalización del grafo. More...

bool	BuildLiveGraph (moBucketsPool *pBucketsPool, moCaptureDevice p_capdev)

bool	SetCaptureDevice (moText deviceport, MOint idevice=0)

bool	BuildLiveDVGraph (moBucketsPool *pBucketsPool, moCaptureDevice &p_capdev)

bool	BuildLiveWebcamGraph (moBucketsPool *pBucketsPool, moCaptureDevice &p_capdev)

bool	BuildLiveVideoGraph (moText filename, moBucketsPool *pBucketsPool)
	Grafo de reproducción de video en modo vivo, asyncronicamente reproducido en función del clock. More...

bool	BuildLiveQTVideoGraph (moText filename, moBucketsPool *pBucketsPool)

bool	BuildLiveSound (moText filename)

bool	BuildLiveStreamingGraph (moBucketsPool *pBucketsPool, moText p_location)

bool	BuildRecordGraph (moText filename, moBucketsPool *pBucketsPool)

virtual moStreamState	GetState ()
	Estado de la reproducción. More...

void	Play ()
	Reproducir el video. More...

void	Stop ()
	Detener la reproducción del video. More...

void	Pause ()
	Pausa la reproducción del video. More...

void	Seek (MOuint frame, float rate=1.0)

bool	IsRunning ()
	Está corriendo. More...

MOulong	GetFramesLength ()
	La cantidad de frames, el largo del stream. More...

MOulong	GetSamplesLength ()

MObyte *	GetFrameBuffer (MOlong *size)

virtual MOulong	GetDuration ()
	La duración total del stream en nanosegundos. More...

virtual MOulong	GetPosition ()

virtual MOulong	GetPositionMS ()

void	SetVolume (float volume)

void	SetBalance (float balance)
	Fija el balance entre canal izquierdo y derecho en caso de haberlos. More...

void	SetPitch (float pitch)

void	SetEchoDelay (float delay)

void	SetEchoIntensity (float intensity)

void	SetEchoFeedback (float feedback)

void	SetBrightness (float brightness)

void	SetContrast (float contrast)

void	SetSaturation (float saturation)

void	SetHue (float hue)

void	BuildAudioFilters ()

void	SetVideoFormat (moGstCaps caps, moGstBuffer buffer=NULL)

void	SetAudioFormat (moGstCaps caps, moGstBuffer buffer=NULL)

bool	CheckState (moGstStateChangeReturn state_change_result, bool waitforsync=false)

void	RetreivePads (moGstElement *FilterElement)

void	WaitForFormatDefinition (MOulong timeout)

void	CopyVideoFrame (void *bufferdst, int size)

virtual bool	IsEOS ()

virtual void	SetEOS (bool iseos)

Public Member Functions inherited from moVideoGraph
	moVideoGraph ()

virtual	~moVideoGraph ()

moVideoMode	GetVideoMode ()
	Devuelve el modo de video. More...

moVideoFormat	GetVideoFormat ()
	Devuelve el formato de video. More...

moAudioFormat	GetAudioFormat ()
	Devuelve el formato de audio. More...

Public Member Functions inherited from moAbstract
	moAbstract ()

virtual	~moAbstract ()

virtual MOboolean	Init ()
	Inicializa el objeto. More...

virtual MOboolean	Finish ()
	Finaliza el objeto, libera recursos. More...

MOboolean	Initialized ()
	Pregunta si est� inicializado. More...

Static Public Member Functions
static moGBoolean	cb_have_data (moGstPad pad, moGstBuffer buffer, moGPointer u_data)

static moGBoolean	cb_buffer_disconnected (moGPointer u_data)

static void	on_rtsppadd_added (moGstElement rtspsrc, moGstPad pad, moGPointer u_data)

static void	cb_newpad (moGstElement decodebin, moGstPad pad, moGBoolean last, moGPointer u_data)

static void	cb_pad_added (moGstElement decodebin2, moGstPad pad, moGPointer u_data)

static void	cb_handoff (moGstElement fakesrc, moGstBuffer buffer, moGstPad *pad, moGPointer user_data)

Static Public Member Functions inherited from moVideoGraph
static moText	StateToText (moStreamState state)
	Estado de la reproducción (version texto) More...

Public Attributes
long	cb_have_data_handler_id

long	signal_rtsppad_added_id

long	signal_newpad_id

long	m_BusWatchId

long	signal_handoff_id

Public Attributes inherited from moAbstract
MOboolean	m_bInitialized
	Valor de inicializaci�n More...

Additional Inherited Members
Static Public Attributes inherited from moAbstract
static moDebug *	MODebug2 = new moDebug()
	Clase de impresi�n de errores para depuraci�n More...

static moTextHeap *	MODebug = new moTextHeap()
	Lista de textos. More...

Protected Attributes inherited from moVideoGraph
moVideoFormat	m_VideoFormat

moAudioFormat	m_AudioFormat
	Formato de video. More...

Detailed Description

GStreamer Graph Class.

GStreamer Graph Class for video filters and video reproduction: you don't have to link to gstreamer This is C++ wrapper to some GStreamer basic functions...

Definition at line 151 of file moGsGraph.h.

Constructor & Destructor Documentation

moGsGraph::moGsGraph ( )

Constructor.

Definition at line 1445 of file moGsGraph.cpp.

moGsGraph::~moGsGraph ( )

virtual

Destructor.

Definition at line 1499 of file moGsGraph.cpp.

Member Function Documentation

void moGsGraph::BuildAudioFilters ( )

Definition at line 2917 of file moGsGraph.cpp.

bool moGsGraph::BuildLiveDVGraph	(	moBucketsPool *	pBucketsPool,
		moCaptureDevice &	p_capdev
	)

TODO: no need to implement ?!

Definition at line 1952 of file moGsGraph.cpp.

bool moGsGraph::BuildLiveGraph	(	moBucketsPool *	pBucketsPool,
		moCaptureDevice	p_capdev
	)

virtual

selecciona entrada!!!

v4lctl setnorm NTSC

y

v4lctl setinput Composite1

Implements moVideoGraph.

Definition at line 1821 of file moGsGraph.cpp.

bool moGsGraph::BuildLiveQTVideoGraph	(	moText	filename,
		moBucketsPool *	pBucketsPool
	)

virtual

Implements moVideoGraph.

Definition at line 2628 of file moGsGraph.cpp.

bool moGsGraph::BuildLiveSound ( moText filename )

AUDIOFX

Definition at line 2737 of file moGsGraph.cpp.

bool moGsGraph::BuildLiveStreamingGraph	(	moBucketsPool *	pBucketsPool,
		moText	p_location
	)

SEND gst-launch -m filesrc location=test-aac.3gp ! qtdemux ! rtpmp4gpay ! udpsink host=172.20.122.9 port=19790

RECEIVE gst-launch -m udpsrc port=19790 ! rtpmp4gdepay ! faad ! queue ! amrnbenc ! rtpamrpay pt=98 ! udpsink host=172.20.122.23 port=2006

SEND: gst-launch -m filesrc location=test.wav ! wavparse ! audioconvert ! audioresample !alawenc ! rtppcmapay ! udpsink host=127.0.0.1 port=19790

RECEIVE: gst-launch -m udpsrc port=19790 ! rtppcmadepay ! alawdec ! queue ! amrnbenc ! rtpamrpay pt=98 ! udpsink host=127.0.0.1 port=2006

TODO: implement BuildLiveStreamingGraph

Definition at line 1841 of file moGsGraph.cpp.

bool moGsGraph::BuildLiveVideoGraph	(	moText	filename,
		moBucketsPool *	pBucketsPool
	)

virtual

Grafo de reproducción de video en modo vivo, asyncronicamente reproducido en función del clock.

genera un grafo para reproducir un video en modo normal

Returns: verdadero si fue exitoso, falso sino

SOUND...

FIN SOUND

marcamos el sync a true para que reproduzca en sync.

agrega sonido en sincro

Implements moVideoGraph.

Definition at line 2952 of file moGsGraph.cpp.

bool moGsGraph::BuildLiveWebcamGraph	(	moBucketsPool *	pBucketsPool,
		moCaptureDevice &	p_capdev
	)

gstreamer example tests: gst-launch -v dshowvideosrc ! ffmpegcolorspace ! video/x-raw-rgb,bpp=16 ! videoscale ! video/x-raw-rgb,width=160,height=120 ! autovideosink

gst-launch rtspsrc location="rtsp://192.168.0.101/live.sdp" latency=100 ! queue ! rtpmp4vdepay ! queue ! ffdec_mpeg4 ! ffmpegcolorspace ! autovideosink

usando TCP se soluciona la desconección del server automática....

gst-launch rtspsrc location="rtsp://192.168.0.101/live.sdp" latency=100 debug=true protocols=0x00000004 ! queue ! rtpmp4vdepay ! queue ! ffdec_mpeg4 ! ffmpegcolorspace ! autovideosink

referencias:

http://nuald.blogspot.com/2009/07/creating-video-conference-application.html http://stackoverflow.com/questions/1884204/playing-an-incoming-rtp-stream-with-gstreamer

ok

ok link_result = gst_element_link_many( (GstElement*) m_pRTSPSource, (GstElement*) m_pRTSPDepay, NULL );

try to link later dynamically

SOUP HTTP source (MJPEG/HTTP) videofeed

STANDAR DEVICES....

m_pColorSpaceSource = gst_element_factory_make ( VIDEOCONVERT, "colorsource"); if (m_pCapsFilterSource) { res = gst_bin_add (GST_BIN (m_pGstPipeline), (GstElement*) m_pColorSpaceSource ); }

(GstElement*) m_pColorSpaceSource,

Definition at line 1981 of file moGsGraph.cpp.

bool moGsGraph::BuildRecordGraph	(	moText	filename,
		moBucketsPool *	pBucketsPool
	)

virtual

grab at the same time with: gst-launch-0.10 v4l2src ! queue ! ffmpegcolorspace ! theoraenc quality=1 ! queue ! oggmux name=mux alsasrc ! audio/x-raw-int,rate=8000,channels=1,depth=8 ! queue ! audioconvert ! vorbisenc ! queue ! mux. mux. ! queue ! tee name= t ! queue ! filesink location=test.ogg t. ! queue ! shout2send ip=giss.tv port=8000 password=pass

TODO: implement BuildRecordGraph

0x000000FF

0x0000FF00

0x00FF0000

Implements moVideoGraph.

Definition at line 1854 of file moGsGraph.cpp.

moGBoolean moGsGraph::cb_buffer_disconnected ( moGPointer u_data )

static

Definition at line 160 of file moGsGraph.cpp.

void moGsGraph::cb_handoff	(	moGstElement *	fakesrc,
		moGstBuffer *	buffer,
		moGstPad *	pad,
		moGPointer	user_data
	)

static

unused

moAbstract::MODebug2->Push(moText("frame nbr"));

Definition at line 841 of file moGsGraph.cpp.

moGBoolean moGsGraph::cb_have_data	(	moGstPad *	pad,
		moGstBuffer *	buffer,
		moGPointer	u_data
	)

static

g_signal_connect (data.appsink, "new-buffer", G_CALLBACK (appsink_new_buffer), &data); void appsink_new_buffer (GstElement *sink, CustomData *data) { GstBuffer *buffer;

Retrieve the buffer g_signal_emit_by_name (sink, "pull-buffer", &buffer); if (buffer) {

(((CustomData*)data)->appsink_buffer_count)++;

push buffer onto queue, to be processed in different thread if (GstBufferQueue->size() > GSTBUFFERQUEUE_SIZE) { error message printf ("GstBufferQueue is full!\n"); release buffer gst_buffer_unref (buffer); } else { push onto queue GstBufferQueue->push(buffer); activate thread connectionDataAvailable_GstBufferQueue.notify_all(); } } }

Definition at line 275 of file moGsGraph.cpp.

void moGsGraph::cb_newpad	(	moGstElement *	decodebin,
		moGstPad *	pad,
		moGBoolean	last,
		moGPointer	u_data
	)

static

unused

Definition at line 473 of file moGsGraph.cpp.

void moGsGraph::cb_pad_added	(	moGstElement *	decodebin2,
		moGstPad *	pad,
		moGPointer	u_data
	)

static

Definition at line 666 of file moGsGraph.cpp.

bool moGsGraph::CheckState	(	moGstStateChangeReturn	state_change_result,
		bool	waitforsync = `false`
	)

Definition at line 3494 of file moGsGraph.cpp.

void moGsGraph::CopyVideoFrame	(	void *	bufferdst,
		int	size
	)

Definition at line 1790 of file moGsGraph.cpp.

bool moGsGraph::FinishGraph ( )

virtual

Finalización del grafo.

Destruye los punteros y estructuras de la clase creadas dinámicamente en la función InitGraph

Returns: verdadero si fue exitoso, falso sino

this is only a reference doesnt destroy it, just pass to null

FINALLY UNREFERENCE PIPELINE, DESTROY ALL

Implements moVideoGraph.

Definition at line 1606 of file moGsGraph.cpp.

MOulong moGsGraph::GetDuration ( )

virtual

La duración total del stream en nanosegundos.

devuelve la duración total del stream que se encuentra reproduciendo en nanosegundos

Returns: duración total del stream en nanosegundos

Implements moVideoGraph.

Definition at line 3771 of file moGsGraph.cpp.

MObyte * moGsGraph::GetFrameBuffer ( MOlong * size )

virtual

cantidad de muestras de sonido

TODO: ?? GetFrameBuffer

Implements moVideoGraph.

Definition at line 3916 of file moGsGraph.cpp.

MOulong moGsGraph::GetFramesLength ( )

virtual

La cantidad de frames, el largo del stream.

devuelve el largo del stream convertido a frames

Returns: largo en frames

Implements moVideoGraph.

Definition at line 3723 of file moGsGraph.cpp.

MOulong moGsGraph::GetPosition ( )

virtual

en nanosegundos para gstreamer!!! 1E-9 1 s = 1E9 ns = 1 billion ns

TODO:GetFramePosition vs GetSamplePosition sample position = duration / samplerate

Implements moVideoGraph.

Definition at line 3794 of file moGsGraph.cpp.

MOulong moGsGraph::GetPositionMS ( )

virtual

en cuadros

Definition at line 3814 of file moGsGraph.cpp.

MOulong moGsGraph::GetSamplesLength ( )

cantidad de cuadros

Definition at line 3748 of file moGsGraph.cpp.

moStreamState moGsGraph::GetState ( )

virtual

Estado de la reproducción.

Devuelve el estado en que se encuentra el grafo, un valor entre MO_STREAMSTATE_UNKNOWN=-1, MO_STREAMSTATE_PAUSED, MO_STREAMSTATE_PLAYING, MO_STREAMSTATE_WAITING, MO_STREAMSTATE_READY, MO_STREAMSTATE_STOPPED

Returns: moStreamState estado del stream del grafo

Reimplemented from moVideoGraph.

Definition at line 3553 of file moGsGraph.cpp.

bool moGsGraph::InitGraph ( )

virtual

Inicialización del grafo.

Inicializa los punteros y estructuras de la clase

Returns: verdadero si fue exitoso, falso sino

Implements moVideoGraph.

Definition at line 1532 of file moGsGraph.cpp.

bool moGsGraph::IsEOS ( )

virtual

Implements moVideoGraph.

Definition at line 1767 of file moGsGraph.cpp.

bool moGsGraph::IsRunning ( )

virtual

Está corriendo.

indicador que señala si el grafo se está reproduciendo

Returns: verdadero o falso

Implements moVideoGraph.

Definition at line 3831 of file moGsGraph.cpp.

void moGsGraph::on_rtsppadd_added	(	moGstElement *	rtspsrc,
		moGstPad *	pad,
		moGPointer	u_data
	)

static

unused

link video...

all ok!!!

Definition at line 411 of file moGsGraph.cpp.

void moGsGraph::Pause ( )

virtual

Pausa la reproducción del video.

comando de pause, interrumpe la reproducción del video

TODO: for live-stream pause works ok... not for others

Implements moVideoGraph.

Definition at line 3660 of file moGsGraph.cpp.

void moGsGraph::Play ( )

virtual

Reproducir el video.

comando de play, reproduce el video o continua la reproducción

Implements moVideoGraph.

Definition at line 3641 of file moGsGraph.cpp.

void moGsGraph::RetreivePads ( moGstElement * FilterElement )

Definition at line 2636 of file moGsGraph.cpp.

void moGsGraph::Seek	(	MOuint	frame,
		float	rate = `1.0`
	)

virtual

TODO: TimeSeek() SampleSeek()

TODO: unused rate!!!

no leemos el ultimo cuadro para no generar un EOS esto depende del modo del play, si esta PLAYING o si esta en PAUSE

TIME SEEK: frame as time in milliseconds

res = gst_element_seek( (GstElement*)m_pGstPipeline, 1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_NONE, GST_SEEK_TYPE_SET, 10 * GST_SECOND, GST_SEEK_TYPE_SET, 20 * GST_SECOND );

Implements moVideoGraph.

Definition at line 3674 of file moGsGraph.cpp.

void moGsGraph::SetAudioFormat	(	moGstCaps *	caps,
		moGstBuffer *	buffer = `NULL`
	)

Definition at line 3278 of file moGsGraph.cpp.

void moGsGraph::SetBalance ( float balance )

virtual

Fija el balance entre canal izquierdo y derecho en caso de haberlos.

Permite modificar el balance estereo entre -1 y 1, siendo -1 todo a la izquierda y 1 todo a la derecha, 0 corresponde al equilibrio entre los dos canales.

Parameters

balance nivel balance entre los dos canales, entre -1 y 1

Implements moVideoGraph.

Definition at line 3845 of file moGsGraph.cpp.

void moGsGraph::SetBrightness ( float brightness )

virtual

funciones de video

Implements moVideoGraph.

Definition at line 3883 of file moGsGraph.cpp.

bool moGsGraph::SetCaptureDevice	(	moText	deviceport,
		MOint	idevice = `0`
	)

TODO: implement SetCaptureDevice

Definition at line 1780 of file moGsGraph.cpp.

void moGsGraph::SetContrast ( float contrast )

virtual

Implements moVideoGraph.

Definition at line 3891 of file moGsGraph.cpp.

void moGsGraph::SetEchoDelay ( float delay )

Definition at line 3861 of file moGsGraph.cpp.

void moGsGraph::SetEchoFeedback ( float feedback )

Definition at line 3876 of file moGsGraph.cpp.

void moGsGraph::SetEchoIntensity ( float intensity )

Definition at line 3869 of file moGsGraph.cpp.

void moGsGraph::SetEOS ( bool iseos )

virtual

Implements moVideoGraph.

Definition at line 1772 of file moGsGraph.cpp.

void moGsGraph::SetHue ( float hue )

virtual

Implements moVideoGraph.

Definition at line 3899 of file moGsGraph.cpp.

void moGsGraph::SetPitch ( float pitch )

Definition at line 3852 of file moGsGraph.cpp.

void moGsGraph::SetSaturation ( float saturation )

virtual

Implements moVideoGraph.

Definition at line 3907 of file moGsGraph.cpp.

void moGsGraph::SetVideoFormat	(	moGstCaps *	caps,
		moGstBuffer *	buffer = `NULL`
	)

Definition at line 3362 of file moGsGraph.cpp.

void moGsGraph::SetVolume ( float volume )

virtual

en millisegundos Funciones de Audio

Implements moVideoGraph.

Definition at line 3838 of file moGsGraph.cpp.

void moGsGraph::Stop ( )

virtual

Detener la reproducción del video.

comando de stop, detiene la reproducción del video

Implements moVideoGraph.

Definition at line 3652 of file moGsGraph.cpp.

void moGsGraph::WaitForFormatDefinition ( MOulong timeout )

Definition at line 2717 of file moGsGraph.cpp.

Member Data Documentation

long moGsGraph::cb_have_data_handler_id

Definition at line 250 of file moGsGraph.h.

long moGsGraph::m_BusWatchId

Definition at line 278 of file moGsGraph.h.

long moGsGraph::signal_handoff_id

Definition at line 285 of file moGsGraph.h.

long moGsGraph::signal_newpad_id

Definition at line 277 of file moGsGraph.h.

long moGsGraph::signal_rtsppad_added_id

Definition at line 255 of file moGsGraph.h.

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

libmoldeo/moGsGraph.h
libmoldeo/moGsGraph.cpp

Public Member Functions

Static Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation