tsAudio

class tsAudio : public SoNode

Feedback node rendering a signal to a audio stream

Inheritance:

Public Methods
tsAudio(): Constructor
virtual ~tsAudio(): Destructor

Public

New Fields

SoSFFloat IORateRatio: Field storing ratio of input and output sample rate

Protected Fields
Scrubber* pScrubber: The object we employ for reading and playing audio.
char pScrubberFileName[200]

Protected

Action behaviour:

virtual void GLRender(SoGLRenderAction *action): Not yet implemented! This implements the GL rendering action
virtual void getBoundingBox(SoGetBoundingBoxAction *action): Not yet implemented! Computes the duration in time.
virtual void callback(SoCallbackAction *action): Does nothing yet!

Synchronizing staff:

float lastSpeed
stamp_t lastUST

Private Methods
SO_NODE_HEADER(tsAudio): Inventor macro

Documentation

Feedback node rendering a signal to a audio stream. Until now, it only redners a tsData1RFloatFile node.
Takes time and speed to render for from tsTimeElement.
Takes signal data from a file in tsData1RFloatFile.
This node ceates and communicates an object of class 'Scubber'. This is a sample rate converter written by Tobias Kunze(tkunze@engr.sgi.com). It builds a separate thread for reading, converting and playing audio frames from an audio file. This code is used for simplicity.
Limitation:
- To have access to a file, currently only signal data from a tsData1RFloatFile can be played back. The nodes field 'filename' is directly read and used. This is not very systematically!
- Use SoComplexity as quality of Scrubber/RingSound .
- Give Audio Haardware back when not playing, so other applications (movieplayer) can use it.