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DSPaudioIO.hpp

00001  /***********************************************************************
00002  *                                                                      *
00003  * ViTooKi                                                              *
00004  *                                                                      *
00005  * title: DSPaudioIO.hpp                                                *
00006  *                                                                      *
00007  *                                                                      *
00008  *                                                                      *
00009  * ITEC institute of the University of Klagenfurt (Austria)             *
00010  * http://www.itec.uni-klu.ac.at                                        *
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00035 
00036  /***********************************************************************
00037  *                                                                      *
00038  *  REVISION HISTORY:                                                   *
00039  *                                                                      *
00040  *                                                                      *
00041  *                                                                      *
00042  ***********************************************************************/
00043 
00044 // DSPaudioIO.hpp: Class for audio output.
00045 //
00047 #ifndef WIN32
00048 
00049 
00050 #ifndef _DSPAUDIOIO_HPP_
00051 #define _DSPAUDIOIO_HPP_
00052 
00053 //#ifndef WIN32 //audio via /dev/dsp is Linux-only
00054 
00055 #ifdef ISOMP4
00056 #include "ISOMovies.h" //XXX for data types definition
00057 #endif
00058 
00059 #include "AudioIO.hpp"
00060 #include "AudioESInfo.hpp"
00061 #include "adaptors/ESSynchronizer.hpp"
00062 
00063 
00064 class Frame;
00065 class AudioESInfo;
00066 
00078 class DSPaudioIO : public AudioIO {
00079 public:
00080 
00081         /* @param es points to the raw audio stream's ES, which incl. sample rate, stereo/mono flags...
00082          * @param ess points to the ESSync, if needed to sync with a video output
00083          * @param enableHeadphones only works on iPAQs to turn off speaker output and enable headphones
00084          * (see the file SLASH_dev_SLASH_audio.c)
00085          */
00086         DSPaudioIO(AudioESInfo *es, ESSynchronizer *ess = NULL, bool enableHeadphones = false);
00087 
00088         virtual ~DSPaudioIO();
00089 
00090         int initialize();
00091         
00092         // IO Methods
00093         Frame * getFrame() ;
00094 
00096         int writeFrame(Frame * frm, ESInfo *out_es=NULL);
00097 
00100         bool open();
00101 
00102         bool close(bool immediate=false);
00103 
00104 private:
00105         bool requestUnpauseESS;
00106         bool enableHeadphones;
00107 
00108 
00109 };
00110 
00111 
00112 #endif
00113 
00114 #endif /*WIN32*/