92 lines
2.6 KiB
C++
92 lines
2.6 KiB
C++
// copyright (C) 2003 david griffiths <dave@pawfal.org>
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//
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// this program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU general public license as published by
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// the free software foundation; either version 2 of the license, or
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// (at your option) any later version.
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//
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// this program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. see the
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// GNU general public license for more details.
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//
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// you should have received a copy of the GNU general public license
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// along with this program; if not, write to the free software
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// foundation, inc., 59 temple place - suite 330, boston, MA 02111-1307, USA.
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#include <map>
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#include <vector>
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#include <string>
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#include <iostream>
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#include <portaudio.h>
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using namespace std;
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#ifndef PA_CLIENT
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#define PA_CLIENT
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class portaudio_client
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{
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public:
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portaudio_client();
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~portaudio_client();
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bool init();
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class device_options {
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public:
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enum type {READ,WRITE,READWRITE};
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unsigned int buffer_size;
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unsigned int num_buffers;
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unsigned int samplerate;
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unsigned int in_channels;
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unsigned int out_channels;
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};
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class device_desc {
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public:
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string name;
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int id;
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bool default_input;
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bool default_output;
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};
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vector<portaudio_client::device_desc> m_devices;
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bool attach(const string &requested_output_device, const string &client_name, const device_options &dopt);
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void detach();
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bool is_attached() { return m_attached_device!=-1; }
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void set_callback(void(*run)(void*, unsigned int),void *context) { run_callback=run; run_context=context; }
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void set_outputs(const float *l, const float *r) { m_left_data=l; m_right_data=r; }
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void set_inputs(float *l, float *r) { m_left_in_data=l; m_right_in_data=r; }
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string m_status;
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protected:
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static int process(const void *input_buffer, void *output_buffer,
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unsigned long frames_per_buffer,
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const PaStreamCallbackTimeInfo* time_info,
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PaStreamCallbackFlags status_flags,
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void *user_data);
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private:
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int device_name_to_id(const string &name);
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static long unsigned int m_buffer_size;
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static bool m_initialised;
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static int m_attached_device;
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static const float *m_right_data;
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static const float *m_left_data;
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static float *m_right_in_data;
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static float *m_left_in_data;
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static void(*run_callback)(void *, unsigned int);
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static void *run_context;
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static PaStream *m_stream;
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};
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#endif
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