common/JackNetDriver.h

   1 /*
   2 Copyright (C) 2008-2011 Romain Moret at Grame
   3
   4 This program is free software; you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License as published by
   6 the Free Software Foundation; either version 2 of the License, or
   7 (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program; if not, write to the Free Software
  16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifndef __JackNetDriver__
  21 #define __JackNetDriver__
  22
  23 #include "JackTimedDriver.h"
  24 #include "JackNetInterface.h"
  25
  26 //#define JACK_MONITOR
  27
  28 namespace Jack
  29 {
  30     /**
  31     \Brief This class describes the Net Backend
  32     */
  33
  34     class JackNetDriver : public JackWaiterDriver, public JackNetSlaveInterface
  35     {
  36
  37         private:
  38
  39             //jack data
  40             jack_port_id_t* fMidiCapturePortList;
  41             jack_port_id_t* fMidiPlaybackPortList;
  42
  43             //transport
  44             int fLastTransportState;
  45             int fLastTimebaseMaster;
  46
  47             // The wanted value at creation time (may be different than the value actually returned by the master)
  48             int fWantedAudioCaptureChannels;
  49             int fWantedAudioPlaybackChannels;
  50
  51             int fWantedMIDICaptureChannels;
  52             int fWantedMIDIPlaybackChannels;
  53
  54             bool fAutoSave;
  55
  56             //monitoring
  57         #ifdef JACK_MONITOR
  58             JackGnuPlotMonitor<float>* fNetTimeMon;
  59             jack_time_t fRcvSyncUst;
  60         #endif
  61
  62             bool Initialize();
  63             void FreeAll();
  64
  65             int AllocPorts();
  66             int FreePorts();
  67
  68             //transport
  69             void EncodeTransportData();
  70             void DecodeTransportData();
  71
  72             JackMidiBuffer* GetMidiInputBuffer(int port_index);
  73             JackMidiBuffer* GetMidiOutputBuffer(int port_index);
  74
  75             void SaveConnections(int alias);
  76
  77             void UpdateLatencies();
  78
  79         public:
  80
  81             JackNetDriver(const char* name, const char* alias, JackLockedEngine* engine, JackSynchro* table,
  82                         const char* ip, int port, int mtu, int midi_input_ports, int midi_output_ports,
  83                         char* net_name, uint transport_sync, int network_latency, int celt_encoding,
  84                         int opus_encoding, bool auto_save);
  85             virtual ~JackNetDriver();
  86
  87             int Open(jack_nframes_t buffer_size,
  88                          jack_nframes_t samplerate,
  89                          bool capturing,
  90                          bool playing,
  91                          int inchannels,
  92                          int outchannels,
  93                          bool monitor,
  94                          const char* capture_driver_name,
  95                          const char* playback_driver_name,
  96                          jack_nframes_t capture_latency,
  97                          jack_nframes_t playback_latency);
  98             int Close();
  99
 100             int Attach();
 101             int Detach();
 102
 103             int Read();
 104             int Write();
 105
 106             // BufferSize can't be changed
 107             bool IsFixedBufferSize()
 108             {
 109                 return true;
 110             }
 111
 112             int SetBufferSize(jack_nframes_t buffer_size)
 113             {
 114                 return -1;
 115             }
 116
 117             int SetSampleRate(jack_nframes_t sample_rate)
 118             {
 119                 return -1;
 120             }
 121
 122     };
 123 }
 124
 125 #endif