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https://github.com/Ardour/ardour.git
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call me Mr. Backend
simple blocking (no callback) PortAudio Backend
This commit is contained in:
Robin Gareus
parent
b58c1df07d
commit
1cca79258a
7 changed files with 2616 additions and 1 deletions
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@ -17,7 +17,7 @@ export ARDOUR_DATA_PATH=$TOP:$TOP/build:$TOP/gtk2_ardour:$TOP/build/gtk2_ardour:
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export ARDOUR_MIDIMAPS_PATH=$TOP/midi_maps:.
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export ARDOUR_MIDIMAPS_PATH=$TOP/midi_maps:.
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export ARDOUR_MCP_PATH=$TOP/mcp:.
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export ARDOUR_MCP_PATH=$TOP/mcp:.
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export ARDOUR_EXPORT_FORMATS_PATH=$TOP/export:.
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export ARDOUR_EXPORT_FORMATS_PATH=$TOP/export:.
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export ARDOUR_BACKEND_PATH=$libs/backends/jack:$libs/backends/wavesaudio:$libs/backends/dummy:$libs/backends/alsa:$libs/backends/coreaudio
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export ARDOUR_BACKEND_PATH=$libs/backends/jack:$libs/backends/wavesaudio:$libs/backends/dummy:$libs/backends/alsa:$libs/backends/coreaudio:$libs/backends/portaudio
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export ARDOUR_TEST_PATH=$TOP/libs/ardour/test/data
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export ARDOUR_TEST_PATH=$TOP/libs/ardour/test/data
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export PBD_TEST_PATH=$TOP/libs/pbd/test
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export PBD_TEST_PATH=$TOP/libs/pbd/test
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export EVORAL_TEST_PATH=$TOP/libs/evoral/test/testdata
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export EVORAL_TEST_PATH=$TOP/libs/evoral/test/testdata
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1557
libs/backends/portaudio/portaudio_backend.cc
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1557
libs/backends/portaudio/portaudio_backend.cc
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File diff suppressed because it is too large
Load diff
413
libs/backends/portaudio/portaudio_backend.h
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413
libs/backends/portaudio/portaudio_backend.h
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@ -0,0 +1,413 @@
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/*
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* Copyright (C) 2014-2015 Robin Gareus <robin@gareus.org>
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* Copyright (C) 2013 Paul Davis
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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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __libbackend_portaudio_backend_h__
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#define __libbackend_portaudio_backend_h__
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#include <string>
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#include <vector>
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#include <set>
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#include <stdint.h>
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#include <pthread.h>
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#include <boost/shared_ptr.hpp>
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#include "ardour/audio_backend.h"
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#include "ardour/types.h"
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#include "portaudio_io.h"
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namespace ARDOUR {
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class PortAudioBackend;
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class PortMidiEvent {
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public:
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PortMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size);
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PortMidiEvent (const PortMidiEvent& other);
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~PortMidiEvent ();
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size_t size () const { return _size; };
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pframes_t timestamp () const { return _timestamp; };
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const unsigned char* const_data () const { return _data; };
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unsigned char* data () { return _data; };
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bool operator< (const PortMidiEvent &other) const { return timestamp () < other.timestamp (); };
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private:
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size_t _size;
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pframes_t _timestamp;
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uint8_t *_data;
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};
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typedef std::vector<boost::shared_ptr<PortMidiEvent> > PortMidiBuffer;
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class PamPort { // PortAudio / PortMidi Backend Port
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protected:
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PamPort (PortAudioBackend &b, const std::string&, PortFlags);
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public:
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virtual ~PamPort ();
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const std::string& name () const { return _name; }
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PortFlags flags () const { return _flags; }
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int set_name (const std::string &name) { _name = name; return 0; }
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virtual DataType type () const = 0;
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bool is_input () const { return flags () & IsInput; }
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bool is_output () const { return flags () & IsOutput; }
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bool is_physical () const { return flags () & IsPhysical; }
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bool is_terminal () const { return flags () & IsTerminal; }
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bool is_connected () const { return _connections.size () != 0; }
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bool is_connected (const PamPort *port) const;
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bool is_physically_connected () const;
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const std::vector<PamPort *>& get_connections () const { return _connections; }
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int connect (PamPort *port);
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int disconnect (PamPort *port);
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void disconnect_all ();
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virtual void* get_buffer (pframes_t nframes) = 0;
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const LatencyRange latency_range (bool for_playback) const
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{
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return for_playback ? _playback_latency_range : _capture_latency_range;
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}
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void set_latency_range (const LatencyRange &latency_range, bool for_playback)
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{
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if (for_playback)
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{
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_playback_latency_range = latency_range;
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}
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else
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{
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_capture_latency_range = latency_range;
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}
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}
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private:
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PortAudioBackend &_osx_backend;
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std::string _name;
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const PortFlags _flags;
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LatencyRange _capture_latency_range;
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LatencyRange _playback_latency_range;
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std::vector<PamPort*> _connections;
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void _connect (PamPort* , bool);
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void _disconnect (PamPort* , bool);
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}; // class PamPort
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class PortAudioPort : public PamPort {
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public:
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PortAudioPort (PortAudioBackend &b, const std::string&, PortFlags);
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~PortAudioPort ();
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DataType type () const { return DataType::AUDIO; };
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Sample* buffer () { return _buffer; }
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const Sample* const_buffer () const { return _buffer; }
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void* get_buffer (pframes_t nframes);
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private:
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Sample _buffer[8192];
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}; // class PortAudioPort
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class PortMidiPort : public PamPort {
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public:
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PortMidiPort (PortAudioBackend &b, const std::string&, PortFlags);
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~PortMidiPort ();
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DataType type () const { return DataType::MIDI; };
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void* get_buffer (pframes_t nframes);
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const PortMidiBuffer * const_buffer () const { return & _buffer[_bufperiod]; }
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void next_period() { if (_n_periods > 1) { get_buffer(0); _bufperiod = (_bufperiod + 1) % _n_periods; } }
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void set_n_periods(int n) { if (n > 0 && n < 3) { _n_periods = n; } }
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private:
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PortMidiBuffer _buffer[2];
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int _n_periods;
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int _bufperiod;
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}; // class PortMidiPort
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class PortAudioBackend : public AudioBackend {
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friend class PamPort;
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public:
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PortAudioBackend (AudioEngine& e, AudioBackendInfo& info);
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~PortAudioBackend ();
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/* AUDIOBACKEND API */
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std::string name () const;
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bool is_realtime () const;
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std::vector<DeviceStatus> enumerate_devices () const;
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std::vector<float> available_sample_rates (const std::string& device) const;
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std::vector<uint32_t> available_buffer_sizes (const std::string& device) const;
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uint32_t available_input_channel_count (const std::string& device) const;
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uint32_t available_output_channel_count (const std::string& device) const;
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bool can_change_sample_rate_when_running () const;
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bool can_change_buffer_size_when_running () const;
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int set_device_name (const std::string&);
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int set_sample_rate (float);
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int set_buffer_size (uint32_t);
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int set_interleaved (bool yn);
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int set_input_channels (uint32_t);
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int set_output_channels (uint32_t);
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int set_systemic_input_latency (uint32_t);
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int set_systemic_output_latency (uint32_t);
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int set_systemic_midi_input_latency (std::string const, uint32_t) { return 0; }
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int set_systemic_midi_output_latency (std::string const, uint32_t) { return 0; }
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int reset_device () { return 0; };
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/* Retrieving parameters */
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std::string device_name () const;
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float sample_rate () const;
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uint32_t buffer_size () const;
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bool interleaved () const;
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uint32_t input_channels () const;
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uint32_t output_channels () const;
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uint32_t systemic_input_latency () const;
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uint32_t systemic_output_latency () const;
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uint32_t systemic_midi_input_latency (std::string const) const { return 0; }
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uint32_t systemic_midi_output_latency (std::string const) const { return 0; }
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bool can_set_systemic_midi_latencies () const { return false; }
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/* External control app */
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std::string control_app_name () const { return std::string (); }
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void launch_control_app () {}
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/* MIDI */
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std::vector<std::string> enumerate_midi_options () const;
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int set_midi_option (const std::string&);
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std::string midi_option () const;
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std::vector<DeviceStatus> enumerate_midi_devices () const {
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return std::vector<AudioBackend::DeviceStatus> ();
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}
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int set_midi_device_enabled (std::string const, bool) {
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return 0;
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}
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bool midi_device_enabled (std::string const) const {
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return true;
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}
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protected:
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/* State Control */
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int _start (bool for_latency_measurement);
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public:
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int stop ();
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int freewheel (bool);
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float dsp_load () const;
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size_t raw_buffer_size (DataType t);
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/* Process time */
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framepos_t sample_time ();
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framepos_t sample_time_at_cycle_start ();
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pframes_t samples_since_cycle_start ();
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int create_process_thread (boost::function<void()> func);
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int join_process_threads ();
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bool in_process_thread ();
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uint32_t process_thread_count ();
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void update_latencies ();
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/* PORTENGINE API */
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void* private_handle () const;
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const std::string& my_name () const;
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bool available () const;
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uint32_t port_name_size () const;
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int set_port_name (PortHandle, const std::string&);
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std::string get_port_name (PortHandle) const;
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PortHandle get_port_by_name (const std::string&) const;
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int get_ports (const std::string& port_name_pattern, DataType type, PortFlags flags, std::vector<std::string>&) const;
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DataType port_data_type (PortHandle) const;
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PortHandle register_port (const std::string& shortname, ARDOUR::DataType, ARDOUR::PortFlags);
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void unregister_port (PortHandle);
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int connect (const std::string& src, const std::string& dst);
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int disconnect (const std::string& src, const std::string& dst);
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int connect (PortHandle, const std::string&);
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int disconnect (PortHandle, const std::string&);
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int disconnect_all (PortHandle);
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bool connected (PortHandle, bool process_callback_safe);
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bool connected_to (PortHandle, const std::string&, bool process_callback_safe);
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bool physically_connected (PortHandle, bool process_callback_safe);
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int get_connections (PortHandle, std::vector<std::string>&, bool process_callback_safe);
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/* MIDI */
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int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index);
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int midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size);
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uint32_t get_midi_event_count (void* port_buffer);
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void midi_clear (void* port_buffer);
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/* Monitoring */
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bool can_monitor_input () const;
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int request_input_monitoring (PortHandle, bool);
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int ensure_input_monitoring (PortHandle, bool);
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bool monitoring_input (PortHandle);
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/* Latency management */
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void set_latency_range (PortHandle, bool for_playback, LatencyRange);
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LatencyRange get_latency_range (PortHandle, bool for_playback);
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/* Discovering physical ports */
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bool port_is_physical (PortHandle) const;
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void get_physical_outputs (DataType type, std::vector<std::string>&);
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void get_physical_inputs (DataType type, std::vector<std::string>&);
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ChanCount n_physical_outputs () const;
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ChanCount n_physical_inputs () const;
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/* Getting access to the data buffer for a port */
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void* get_buffer (PortHandle, pframes_t);
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void* main_process_thread ();
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private:
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std::string _instance_name;
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PortAudioIO *_pcmio;
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bool _run; /* keep going or stop, ardour thread */
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bool _active; /* is running, process thread */
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bool _freewheel;
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bool _freewheeling;
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bool _measure_latency;
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uint64_t _last_process_start;
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static std::vector<std::string> _midi_options;
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static std::vector<AudioBackend::DeviceStatus> _audio_device_status;
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static std::vector<AudioBackend::DeviceStatus> _midi_device_status;
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mutable std::string _audio_device;
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std::string _midi_driver_option;
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/* audio settings */
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float _samplerate;
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size_t _samples_per_period;
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static size_t _max_buffer_size;
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uint32_t _n_inputs;
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uint32_t _n_outputs;
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uint32_t _systemic_audio_input_latency;
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uint32_t _systemic_audio_output_latency;
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/* portaudio specific */
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int name_to_id(std::string) const;
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/* processing */
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float _dsp_load;
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framecnt_t _processed_samples;
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pthread_t _main_thread;
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/* process threads */
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static void* portaudio_process_thread (void *);
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std::vector<pthread_t> _threads;
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struct ThreadData {
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PortAudioBackend* engine;
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boost::function<void ()> f;
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size_t stacksize;
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ThreadData (PortAudioBackend* e, boost::function<void ()> fp, size_t stacksz)
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: engine (e) , f (fp) , stacksize (stacksz) {}
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};
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/* port engine */
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PortHandle add_port (const std::string& shortname, ARDOUR::DataType, ARDOUR::PortFlags);
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||||||
|
int register_system_audio_ports ();
|
||||||
|
void unregister_ports (bool system_only = false);
|
||||||
|
|
||||||
|
std::vector<PamPort *> _ports;
|
||||||
|
std::vector<PamPort *> _system_inputs;
|
||||||
|
std::vector<PamPort *> _system_outputs;
|
||||||
|
std::vector<PamPort *> _system_midi_in;
|
||||||
|
std::vector<PamPort *> _system_midi_out;
|
||||||
|
|
||||||
|
struct PortConnectData {
|
||||||
|
std::string a;
|
||||||
|
std::string b;
|
||||||
|
bool c;
|
||||||
|
|
||||||
|
PortConnectData (const std::string& a, const std::string& b, bool c)
|
||||||
|
: a (a) , b (b) , c (c) {}
|
||||||
|
};
|
||||||
|
|
||||||
|
std::vector<PortConnectData *> _port_connection_queue;
|
||||||
|
pthread_mutex_t _port_callback_mutex;
|
||||||
|
bool _port_change_flag;
|
||||||
|
|
||||||
|
void port_connect_callback (const std::string& a, const std::string& b, bool conn) {
|
||||||
|
pthread_mutex_lock (&_port_callback_mutex);
|
||||||
|
_port_connection_queue.push_back(new PortConnectData(a, b, conn));
|
||||||
|
pthread_mutex_unlock (&_port_callback_mutex);
|
||||||
|
}
|
||||||
|
|
||||||
|
void port_connect_add_remove_callback () {
|
||||||
|
pthread_mutex_lock (&_port_callback_mutex);
|
||||||
|
_port_change_flag = true;
|
||||||
|
pthread_mutex_unlock (&_port_callback_mutex);
|
||||||
|
}
|
||||||
|
|
||||||
|
bool valid_port (PortHandle port) const {
|
||||||
|
return std::find (_ports.begin (), _ports.end (), (PamPort*)port) != _ports.end ();
|
||||||
|
}
|
||||||
|
|
||||||
|
PamPort * find_port (const std::string& port_name) const {
|
||||||
|
for (std::vector<PamPort*>::const_iterator it = _ports.begin (); it != _ports.end (); ++it) {
|
||||||
|
if ((*it)->name () == port_name) {
|
||||||
|
return *it;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
PamPort * find_port_in (std::vector<PamPort *> plist, const std::string& port_name) const {
|
||||||
|
for (std::vector<PamPort*>::const_iterator it = plist.begin (); it != plist.end (); ++it) {
|
||||||
|
if ((*it)->name () == port_name) {
|
||||||
|
return *it;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
}; // class PortAudioBackend
|
||||||
|
|
||||||
|
} // namespace
|
||||||
|
|
||||||
|
#endif /* __libbackend_portaudio_backend_h__ */
|
||||||
452
libs/backends/portaudio/portaudio_io.cc
Normal file
452
libs/backends/portaudio/portaudio_io.cc
Normal file
|
|
@ -0,0 +1,452 @@
|
||||||
|
/*
|
||||||
|
* Copyright (C) 2015 Robin Gareus <robin@gareus.org>
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
#include <assert.h>
|
||||||
|
#include "portaudio_io.h"
|
||||||
|
|
||||||
|
using namespace ARDOUR;
|
||||||
|
|
||||||
|
PortAudioIO::PortAudioIO ()
|
||||||
|
: _state (-1)
|
||||||
|
, _initialized (false)
|
||||||
|
, _capture_channels (0)
|
||||||
|
, _playback_channels (0)
|
||||||
|
, _stream (0)
|
||||||
|
, _input_buffer (0)
|
||||||
|
, _output_buffer (0)
|
||||||
|
, _cur_sample_rate (0)
|
||||||
|
, _cur_input_latency (0)
|
||||||
|
, _cur_output_latency (0)
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
PortAudioIO::~PortAudioIO ()
|
||||||
|
{
|
||||||
|
if (_state == 0) {
|
||||||
|
pcm_stop();
|
||||||
|
}
|
||||||
|
if (_initialized) {
|
||||||
|
Pa_Terminate();
|
||||||
|
}
|
||||||
|
|
||||||
|
for (std::map<int, paDevice*>::const_iterator i = _devices.begin (); i != _devices.end(); ++i) {
|
||||||
|
delete i->second;
|
||||||
|
}
|
||||||
|
_devices.clear();
|
||||||
|
|
||||||
|
free (_input_buffer); _input_buffer = NULL;
|
||||||
|
free (_output_buffer); _output_buffer = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
int
|
||||||
|
PortAudioIO::available_sample_rates(int device_id, std::vector<float>& sampleRates)
|
||||||
|
{
|
||||||
|
static const float ardourRates[] = { 8000.0, 22050.0, 24000.0, 44100.0, 48000.0, 88200.0, 96000.0, 176400.0, 192000.0};
|
||||||
|
|
||||||
|
assert(_initialized);
|
||||||
|
|
||||||
|
// TODO use separate int device_input, int device_output ?!
|
||||||
|
if (device_id == -1) {
|
||||||
|
device_id = Pa_GetDefaultInputDevice();
|
||||||
|
}
|
||||||
|
#ifndef NDEBUG
|
||||||
|
printf("PortAudio: Querying Samplerates for device %d\n", device_id);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
sampleRates.clear();
|
||||||
|
const PaDeviceInfo* nfo = Pa_GetDeviceInfo(device_id);
|
||||||
|
|
||||||
|
PaStreamParameters inputParam;
|
||||||
|
PaStreamParameters outputParam;
|
||||||
|
|
||||||
|
inputParam.device = device_id;
|
||||||
|
inputParam.channelCount = nfo->maxInputChannels;
|
||||||
|
inputParam.sampleFormat = paFloat32;
|
||||||
|
inputParam.suggestedLatency = 0;
|
||||||
|
inputParam.hostApiSpecificStreamInfo = 0;
|
||||||
|
|
||||||
|
outputParam.device = device_id;
|
||||||
|
outputParam.channelCount = nfo->maxOutputChannels;
|
||||||
|
outputParam.sampleFormat = paFloat32;
|
||||||
|
outputParam.suggestedLatency = 0;
|
||||||
|
outputParam.hostApiSpecificStreamInfo = 0;
|
||||||
|
|
||||||
|
for (uint32_t i = 0; i < sizeof(ardourRates)/sizeof(float); ++i) {
|
||||||
|
if (paFormatIsSupported == Pa_IsFormatSupported(
|
||||||
|
nfo->maxInputChannels > 0 ? &inputParam : NULL,
|
||||||
|
nfo->maxOutputChannels > 0 ? &outputParam : NULL,
|
||||||
|
ardourRates[i])) {
|
||||||
|
sampleRates.push_back (ardourRates[i]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (sampleRates.empty()) {
|
||||||
|
sampleRates.push_back (48000.0);
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
PortAudioIO::available_buffer_sizes(int device_id, std::vector<uint32_t>& bufferSizes)
|
||||||
|
{
|
||||||
|
// TODO
|
||||||
|
static const uint32_t ardourSizes[] = { 64, 128, 256, 512, 1024, 2048, 4096 };
|
||||||
|
for(uint32_t i = 0; i < sizeof(ardourSizes)/sizeof(uint32_t); ++i) {
|
||||||
|
bufferSizes.push_back (ardourSizes[i]);
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
PortAudioIO::device_list (std::map<int, std::string> &devices) const {
|
||||||
|
devices.clear();
|
||||||
|
for (std::map<int, paDevice*>::const_iterator i = _devices.begin (); i != _devices.end(); ++i) {
|
||||||
|
devices.insert (std::pair<int, std::string> (i->first, i->second->name));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
PortAudioIO::discover()
|
||||||
|
{
|
||||||
|
for (std::map<int, paDevice*>::const_iterator i = _devices.begin (); i != _devices.end(); ++i) {
|
||||||
|
delete i->second;
|
||||||
|
}
|
||||||
|
_devices.clear();
|
||||||
|
|
||||||
|
PaError err = paNoError;
|
||||||
|
|
||||||
|
if (!_initialized) {
|
||||||
|
err = Pa_Initialize();
|
||||||
|
}
|
||||||
|
if (err != paNoError) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
_initialized = true;
|
||||||
|
|
||||||
|
{
|
||||||
|
const PaDeviceInfo* nfo_i = Pa_GetDeviceInfo(Pa_GetDefaultInputDevice());
|
||||||
|
const PaDeviceInfo* nfo_o = Pa_GetDeviceInfo(Pa_GetDefaultOutputDevice());
|
||||||
|
if (nfo_i && nfo_o) {
|
||||||
|
_devices.insert (std::pair<int, paDevice*> (-1,
|
||||||
|
new paDevice("Default",
|
||||||
|
nfo_i->maxInputChannels,
|
||||||
|
nfo_o->maxOutputChannels
|
||||||
|
)));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int n_devices = Pa_GetDeviceCount();
|
||||||
|
#ifndef NDEBUG
|
||||||
|
printf("PortAudio %d devices found:\n", n_devices);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
for (int i = 0 ; i < n_devices; ++i) {
|
||||||
|
const PaDeviceInfo* nfo = Pa_GetDeviceInfo(i);
|
||||||
|
if (!nfo) continue;
|
||||||
|
#ifndef NDEBUG
|
||||||
|
printf(" (%d) '%s' in: %d (lat: %.1f .. %.1f) out: %d (lat: %.1f .. %.1f) sr:%.2f\n",
|
||||||
|
i, nfo->name,
|
||||||
|
nfo->maxInputChannels,
|
||||||
|
nfo->defaultLowInputLatency * 1e3,
|
||||||
|
nfo->defaultHighInputLatency * 1e3,
|
||||||
|
nfo->maxOutputChannels,
|
||||||
|
nfo->defaultLowOutputLatency * 1e3,
|
||||||
|
nfo->defaultHighOutputLatency * 1e3,
|
||||||
|
nfo->defaultSampleRate);
|
||||||
|
#endif
|
||||||
|
if ( nfo->maxInputChannels == 0 && nfo->maxOutputChannels == 0) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
_devices.insert (std::pair<int, paDevice*> (i, new paDevice(
|
||||||
|
nfo->name,
|
||||||
|
nfo->maxInputChannels,
|
||||||
|
nfo->maxOutputChannels
|
||||||
|
)));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
PortAudioIO::pcm_stop ()
|
||||||
|
{
|
||||||
|
if (_stream) {
|
||||||
|
Pa_CloseStream (_stream);
|
||||||
|
}
|
||||||
|
_stream = NULL;
|
||||||
|
|
||||||
|
_capture_channels = 0;
|
||||||
|
_playback_channels = 0;
|
||||||
|
_cur_sample_rate = 0;
|
||||||
|
_cur_input_latency = 0;
|
||||||
|
_cur_output_latency = 0;
|
||||||
|
|
||||||
|
free (_input_buffer); _input_buffer = NULL;
|
||||||
|
free (_output_buffer); _output_buffer = NULL;
|
||||||
|
_state = -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
PortAudioIO::pcm_start()
|
||||||
|
{
|
||||||
|
PaError err = Pa_StartStream (_stream);
|
||||||
|
|
||||||
|
if (err != paNoError) {
|
||||||
|
_state = -1;
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
#ifdef __APPLE__
|
||||||
|
static uint32_t lower_power_of_two (uint32_t v) {
|
||||||
|
v--;
|
||||||
|
v |= v >> 1;
|
||||||
|
v |= v >> 2;
|
||||||
|
v |= v >> 4;
|
||||||
|
v |= v >> 8;
|
||||||
|
v |= v >> 16;
|
||||||
|
v++;
|
||||||
|
return v >> 1;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
int
|
||||||
|
PortAudioIO::pcm_setup (
|
||||||
|
int device_input, int device_output,
|
||||||
|
double sample_rate, uint32_t samples_per_period)
|
||||||
|
{
|
||||||
|
_state = -2;
|
||||||
|
|
||||||
|
// TODO error reporting sans fprintf()
|
||||||
|
|
||||||
|
PaError err = paNoError;
|
||||||
|
const PaDeviceInfo *nfo_in;
|
||||||
|
const PaDeviceInfo *nfo_out;
|
||||||
|
const PaStreamInfo *nfo_s;
|
||||||
|
|
||||||
|
if (!_initialized) {
|
||||||
|
err = Pa_Initialize();
|
||||||
|
}
|
||||||
|
if (err != paNoError) {
|
||||||
|
fprintf(stderr, "PortAudio Initialization Failed\n");
|
||||||
|
goto error;
|
||||||
|
}
|
||||||
|
_initialized = true;
|
||||||
|
|
||||||
|
|
||||||
|
if (device_input == -1) {
|
||||||
|
device_input = Pa_GetDefaultInputDevice();
|
||||||
|
}
|
||||||
|
if (device_output == -1) {
|
||||||
|
device_output = Pa_GetDefaultOutputDevice();
|
||||||
|
}
|
||||||
|
|
||||||
|
_capture_channels = 0;
|
||||||
|
_playback_channels = 0;
|
||||||
|
_cur_sample_rate = 0;
|
||||||
|
_cur_input_latency = 0;
|
||||||
|
_cur_output_latency = 0;
|
||||||
|
|
||||||
|
#ifndef NDEBUG
|
||||||
|
printf("PortAudio Device IDs: i:%d o:%d\n", device_input, device_output);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
nfo_in = Pa_GetDeviceInfo(device_input);
|
||||||
|
nfo_out = Pa_GetDeviceInfo(device_output);
|
||||||
|
|
||||||
|
if (!nfo_in && ! nfo_out) {
|
||||||
|
fprintf(stderr, "PortAudio Cannot Query Device Info\n");
|
||||||
|
goto error;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (nfo_in) {
|
||||||
|
_capture_channels = nfo_in->maxInputChannels;
|
||||||
|
}
|
||||||
|
if (nfo_out) {
|
||||||
|
_playback_channels = nfo_out->maxOutputChannels;
|
||||||
|
}
|
||||||
|
|
||||||
|
if(_capture_channels == 0 && _playback_channels == 0) {
|
||||||
|
fprintf(stderr, "PortAudio no Input and no output channels.\n");
|
||||||
|
goto error;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
#ifdef __APPLE__
|
||||||
|
// pa_mac_core_blocking.c pa_stable_v19_20140130
|
||||||
|
// BUG: ringbuffer alloc requires power-of-two chn count.
|
||||||
|
if ((_capture_channels & (_capture_channels - 1)) != 0) {
|
||||||
|
printf("Adjusted capture channes to power of two (portaudio rb bug)\n");
|
||||||
|
_capture_channels = lower_power_of_two (_capture_channels);
|
||||||
|
}
|
||||||
|
|
||||||
|
if ((_playback_channels & (_playback_channels - 1)) != 0) {
|
||||||
|
printf("Adjusted capture channes to power of two (portaudio rb bug)\n");
|
||||||
|
_playback_channels = lower_power_of_two (_playback_channels);
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifndef NDEBUG
|
||||||
|
printf("PortAudio Channels: in:%d out:%d\n",
|
||||||
|
_capture_channels, _playback_channels);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
PaStreamParameters inputParam;
|
||||||
|
PaStreamParameters outputParam;
|
||||||
|
|
||||||
|
if (nfo_in) {
|
||||||
|
inputParam.device = device_input;
|
||||||
|
inputParam.channelCount = _capture_channels;
|
||||||
|
inputParam.sampleFormat = paFloat32;
|
||||||
|
inputParam.suggestedLatency = nfo_in->defaultLowInputLatency;
|
||||||
|
inputParam.hostApiSpecificStreamInfo = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (nfo_out) {
|
||||||
|
outputParam.device = device_output;
|
||||||
|
outputParam.channelCount = _playback_channels;
|
||||||
|
outputParam.sampleFormat = paFloat32;
|
||||||
|
outputParam.suggestedLatency = nfo_out->defaultLowOutputLatency;
|
||||||
|
outputParam.hostApiSpecificStreamInfo = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
// XXX re-consider using callback API, testing needed.
|
||||||
|
err = Pa_OpenStream (
|
||||||
|
&_stream,
|
||||||
|
_capture_channels > 0 ? &inputParam: NULL,
|
||||||
|
_playback_channels > 0 ? &outputParam: NULL,
|
||||||
|
sample_rate,
|
||||||
|
samples_per_period,
|
||||||
|
paClipOff | paDitherOff,
|
||||||
|
NULL, NULL);
|
||||||
|
|
||||||
|
if (err != paNoError) {
|
||||||
|
fprintf(stderr, "PortAudio failed to start stream.\n");
|
||||||
|
goto error;
|
||||||
|
}
|
||||||
|
|
||||||
|
nfo_s = Pa_GetStreamInfo (_stream);
|
||||||
|
if (!nfo_s) {
|
||||||
|
fprintf(stderr, "PortAudio failed to query stream information.\n");
|
||||||
|
pcm_stop();
|
||||||
|
goto error;
|
||||||
|
}
|
||||||
|
|
||||||
|
_cur_sample_rate = nfo_s->sampleRate;
|
||||||
|
_cur_input_latency = nfo_s->inputLatency * _cur_sample_rate;
|
||||||
|
_cur_output_latency = nfo_s->outputLatency * _cur_sample_rate;
|
||||||
|
|
||||||
|
#ifndef NDEBUG
|
||||||
|
printf("PA Sample Rate %.1f SPS\n", _cur_sample_rate);
|
||||||
|
printf("PA Input Latency %.1fms %d spl\n", 1e3 * nfo_s->inputLatency, _cur_input_latency);
|
||||||
|
printf("PA Output Latency %.1fms %d spl\n", 1e3 * nfo_s->outputLatency, _cur_output_latency);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
_state = 0;
|
||||||
|
|
||||||
|
if (_capture_channels > 0) {
|
||||||
|
_input_buffer = (float*) malloc (samples_per_period * _capture_channels * sizeof(float));
|
||||||
|
if (!_input_buffer) {
|
||||||
|
fprintf(stderr, "PortAudio failed to allocate input buffer.\n");
|
||||||
|
pcm_stop();
|
||||||
|
goto error;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (_playback_channels > 0) {
|
||||||
|
_output_buffer = (float*) calloc (samples_per_period * _playback_channels, sizeof(float));
|
||||||
|
if (!_output_buffer) {
|
||||||
|
fprintf(stderr, "PortAudio failed to allocate output buffer.\n");
|
||||||
|
pcm_stop();
|
||||||
|
goto error;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
error:
|
||||||
|
_capture_channels = 0;
|
||||||
|
_playback_channels = 0;
|
||||||
|
free (_input_buffer); _input_buffer = NULL;
|
||||||
|
free (_output_buffer); _output_buffer = NULL;
|
||||||
|
Pa_Terminate();
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
PortAudioIO::next_cycle (uint32_t n_samples)
|
||||||
|
{
|
||||||
|
bool xrun = false;
|
||||||
|
PaError err;
|
||||||
|
err = Pa_IsStreamActive (_stream);
|
||||||
|
if (err != 1) {
|
||||||
|
// 0: inactive / aborted
|
||||||
|
// < 0: error
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
// TODO, check drift.. process part with larger capacity first.
|
||||||
|
// Pa_GetStreamReadAvailable(_stream) < Pa_GetStreamWriteAvailable(_stream)
|
||||||
|
|
||||||
|
if (_playback_channels > 0) {
|
||||||
|
err = Pa_WriteStream (_stream, _output_buffer, n_samples);
|
||||||
|
if (err) xrun = true;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (_capture_channels > 0) {
|
||||||
|
err = Pa_ReadStream (_stream, _input_buffer, n_samples);
|
||||||
|
if (err) {
|
||||||
|
memset (_input_buffer, 0, sizeof(float) * n_samples * _capture_channels);
|
||||||
|
xrun = true;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
return xrun ? 1 : 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
PortAudioIO::get_capture_channel (uint32_t chn, float *input, uint32_t n_samples)
|
||||||
|
{
|
||||||
|
assert(chn < _capture_channels);
|
||||||
|
const uint32_t stride = _capture_channels;
|
||||||
|
float *ptr = _input_buffer + chn;
|
||||||
|
while (n_samples-- > 0) {
|
||||||
|
*input++ = *ptr;
|
||||||
|
ptr += stride;
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
PortAudioIO::set_playback_channel (uint32_t chn, const float *output, uint32_t n_samples)
|
||||||
|
{
|
||||||
|
assert(chn < _playback_channels);
|
||||||
|
const uint32_t stride = _playback_channels;
|
||||||
|
float *ptr = _output_buffer + chn;
|
||||||
|
while (n_samples-- > 0) {
|
||||||
|
*ptr = *output++;
|
||||||
|
ptr += stride;
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
103
libs/backends/portaudio/portaudio_io.h
Normal file
103
libs/backends/portaudio/portaudio_io.h
Normal file
|
|
@ -0,0 +1,103 @@
|
||||||
|
/*
|
||||||
|
* Copyright (C) 2015 Robin Gareus <robin@gareus.org>
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __libbackend_portaudio_pcmio_h__
|
||||||
|
#define __libbackend_portaudio_pcmio_h__
|
||||||
|
|
||||||
|
#include <map>
|
||||||
|
#include <vector>
|
||||||
|
#include <string>
|
||||||
|
#include <boost/shared_ptr.hpp>
|
||||||
|
|
||||||
|
#include <stdint.h>
|
||||||
|
|
||||||
|
#include <portaudio.h>
|
||||||
|
|
||||||
|
namespace ARDOUR {
|
||||||
|
|
||||||
|
class PortAudioIO {
|
||||||
|
public:
|
||||||
|
PortAudioIO (void);
|
||||||
|
~PortAudioIO (void);
|
||||||
|
|
||||||
|
int state (void) const { return _state; }
|
||||||
|
|
||||||
|
void discover();
|
||||||
|
void device_list (std::map<int, std::string> &devices) const;
|
||||||
|
|
||||||
|
int available_sample_rates (int device_id, std::vector<float>& sampleRates);
|
||||||
|
int available_buffer_sizes (int device_id, std::vector<uint32_t>& sampleRates);
|
||||||
|
|
||||||
|
|
||||||
|
void pcm_stop (void);
|
||||||
|
int pcm_start (void);
|
||||||
|
|
||||||
|
int pcm_setup (
|
||||||
|
int device_input,
|
||||||
|
int device_output,
|
||||||
|
double sample_rate,
|
||||||
|
uint32_t samples_per_period
|
||||||
|
);
|
||||||
|
|
||||||
|
uint32_t n_playback_channels (void) const { return _playback_channels; }
|
||||||
|
uint32_t n_capture_channels (void) const { return _capture_channels; }
|
||||||
|
|
||||||
|
double sample_rate (void) const { return _cur_sample_rate; }
|
||||||
|
uint32_t capture_latency (void) const { return _cur_input_latency; }
|
||||||
|
uint32_t playback_latency (void) const { return _cur_output_latency; }
|
||||||
|
double stream_time(void) const { if (_stream) return Pa_GetStreamTime (_stream); return 0; }
|
||||||
|
|
||||||
|
int next_cycle(uint32_t n_samples);
|
||||||
|
int get_capture_channel (uint32_t chn, float *input, uint32_t n_samples);
|
||||||
|
int set_playback_channel (uint32_t chn, const float *input, uint32_t n_samples);
|
||||||
|
|
||||||
|
private:
|
||||||
|
int _state;
|
||||||
|
bool _initialized;
|
||||||
|
|
||||||
|
uint32_t _capture_channels;
|
||||||
|
uint32_t _playback_channels;
|
||||||
|
|
||||||
|
PaStream *_stream;
|
||||||
|
|
||||||
|
float *_input_buffer;
|
||||||
|
float *_output_buffer;
|
||||||
|
|
||||||
|
double _cur_sample_rate;
|
||||||
|
uint32_t _cur_input_latency;
|
||||||
|
uint32_t _cur_output_latency;
|
||||||
|
|
||||||
|
|
||||||
|
struct paDevice {
|
||||||
|
std::string name;
|
||||||
|
uint32_t n_inputs;
|
||||||
|
uint32_t n_outputs;
|
||||||
|
|
||||||
|
paDevice (std::string n, uint32_t i, uint32_t o)
|
||||||
|
: name (n)
|
||||||
|
, n_inputs (i)
|
||||||
|
, n_outputs (o)
|
||||||
|
{}
|
||||||
|
};
|
||||||
|
|
||||||
|
std::map<int, paDevice *> _devices;
|
||||||
|
};
|
||||||
|
|
||||||
|
} // namespace
|
||||||
|
|
||||||
|
#endif /* __libbackend_portaudio_pcmio_h__ */
|
||||||
55
libs/backends/portaudio/rt_thread.h
Normal file
55
libs/backends/portaudio/rt_thread.h
Normal file
|
|
@ -0,0 +1,55 @@
|
||||||
|
/*
|
||||||
|
* Copyright (C) 2014 Robin Gareus <robin@gareus.org>
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __libbackend_portaudio_rthread_h__
|
||||||
|
#define __libbackend_portaudio_rthread_h__
|
||||||
|
|
||||||
|
#include <pthread.h>
|
||||||
|
#include <sched.h>
|
||||||
|
|
||||||
|
static int
|
||||||
|
_realtime_pthread_create (
|
||||||
|
const int policy, int priority, const size_t stacksize,
|
||||||
|
pthread_t *thread,
|
||||||
|
void *(*start_routine) (void *),
|
||||||
|
void *arg)
|
||||||
|
{
|
||||||
|
int rv;
|
||||||
|
|
||||||
|
pthread_attr_t attr;
|
||||||
|
struct sched_param parm;
|
||||||
|
|
||||||
|
const int p_min = sched_get_priority_min (policy);
|
||||||
|
const int p_max = sched_get_priority_max (policy);
|
||||||
|
priority += p_max;
|
||||||
|
if (priority > p_max) priority = p_max;
|
||||||
|
if (priority < p_min) priority = p_min;
|
||||||
|
parm.sched_priority = priority;
|
||||||
|
|
||||||
|
pthread_attr_init (&attr);
|
||||||
|
pthread_attr_setschedpolicy (&attr, policy);
|
||||||
|
pthread_attr_setschedparam (&attr, &parm);
|
||||||
|
pthread_attr_setscope (&attr, PTHREAD_SCOPE_SYSTEM);
|
||||||
|
pthread_attr_setinheritsched (&attr, PTHREAD_EXPLICIT_SCHED);
|
||||||
|
pthread_attr_setstacksize (&attr, stacksize);
|
||||||
|
rv = pthread_create (thread, &attr, start_routine, arg);
|
||||||
|
pthread_attr_destroy (&attr);
|
||||||
|
return rv;
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif
|
||||||
35
libs/backends/portaudio/wscript
Normal file
35
libs/backends/portaudio/wscript
Normal file
|
|
@ -0,0 +1,35 @@
|
||||||
|
#!/usr/bin/env python
|
||||||
|
from waflib.extras import autowaf as autowaf
|
||||||
|
from waflib import Options
|
||||||
|
import os
|
||||||
|
import sys
|
||||||
|
import re
|
||||||
|
|
||||||
|
I18N_PACKAGE = 'portaudio-backend'
|
||||||
|
|
||||||
|
# Mandatory variables
|
||||||
|
top = '.'
|
||||||
|
out = 'build'
|
||||||
|
|
||||||
|
def options(opt):
|
||||||
|
autowaf.set_options(opt)
|
||||||
|
|
||||||
|
def configure(conf):
|
||||||
|
autowaf.configure(conf)
|
||||||
|
autowaf.check_pkg(conf, 'portaudio-2.0', uselib_store='PORTAUDIO', atleast_version='19')
|
||||||
|
|
||||||
|
def build(bld):
|
||||||
|
obj = bld(features = 'cxx cxxshlib')
|
||||||
|
obj.source = [ 'portaudio_backend.cc',
|
||||||
|
'portaudio_io.cc',
|
||||||
|
# 'portmidi_io.cc'
|
||||||
|
]
|
||||||
|
obj.includes = ['.']
|
||||||
|
obj.name = 'portaudio_backend'
|
||||||
|
obj.target = 'portaudio_backend'
|
||||||
|
obj.use = 'libardour libpbd'
|
||||||
|
obj.uselib = ['PORTAUDIO']
|
||||||
|
obj.install_path = os.path.join(bld.env['LIBDIR'], 'backends')
|
||||||
|
obj.defines = ['PACKAGE="' + I18N_PACKAGE + '"',
|
||||||
|
'ARDOURBACKEND_DLL_EXPORTS'
|
||||||
|
]
|
||||||
Loading…
Add table
Add a link
Reference in a new issue