#include "pbd/signals.h"
#include "pbd/stacktrace.h"
-#include <jack/weakjack.h>
-#include <jack/jack.h>
-#include <jack/transport.h>
-#include <jack/thread.h>
-
#include "ardour/ardour.h"
-
#include "ardour/data_type.h"
#include "ardour/session_handle.h"
+#include "ardour/libardour_visibility.h"
#include "ardour/types.h"
#include "ardour/chan_count.h"
#include "ardour/port_manager.h"
#include <jack/session.h>
#endif
+class MTDM;
+
namespace ARDOUR {
class InternalPort;
class Session;
class ProcessThread;
class AudioBackend;
+class AudioBackendInfo;
-class AudioEngine : public SessionHandlePtr, public PortManager
+class LIBARDOUR_API AudioEngine : public SessionHandlePtr, public PortManager
{
public:
- static AudioEngine* create (const std::string& client_name, const std::string& session_uuid);
+ static AudioEngine* create ();
virtual ~AudioEngine ();
-
+
int discover_backends();
- std::vector<std::string> available_backends() const;
+ std::vector<const AudioBackendInfo*> available_backends() const;
std::string current_backend_name () const;
- int set_backend (const std::string&);
+ boost::shared_ptr<AudioBackend> set_default_backend ();
+ boost::shared_ptr<AudioBackend> set_backend (const std::string&, const std::string& arg1, const std::string& arg2);
+ boost::shared_ptr<AudioBackend> current_backend() const { return _backend; }
+ bool setup_required () const;
ProcessThread* main_thread() const { return _main_thread; }
- std::string client_name() const { return backend_client_name; }
-
/* START BACKEND PROXY API
*
* See audio_backend.h for full documentation and semantics. These wrappers
* just forward to a backend implementation.
*/
- int start ();
- int stop ();
- int pause ();
+ int start (bool for_latency_measurement=false);
+ int stop (bool for_latency_measurement=false);
int freewheel (bool start_stop);
- float get_cpu_load() const ;
+ float get_dsp_load() const ;
void transport_start ();
void transport_stop ();
TransportState transport_state ();
pframes_t sample_time_at_cycle_start ();
pframes_t samples_since_cycle_start ();
bool get_sync_offset (pframes_t& offset) const;
- int create_process_thread (boost::function<void()> func, pthread_t*, size_t stacksize);
-
+
+ int create_process_thread (boost::function<void()> func);
+ int join_process_threads ();
+ bool in_process_thread ();
+ uint32_t process_thread_count ();
+
+ bool is_realtime() const;
+ bool connected() const;
+
+ int set_device_name (const std::string&);
+ int set_sample_rate (float);
+ int set_buffer_size (uint32_t);
+ int set_sample_format (SampleFormat);
+ int set_interleaved (bool yn);
+ int set_input_channels (uint32_t);
+ int set_output_channels (uint32_t);
+ int set_systemic_input_latency (uint32_t);
+ int set_systemic_output_latency (uint32_t);
+
/* END BACKEND PROXY API */
bool freewheeling() const { return _freewheeling; }
Glib::Threads::Mutex& process_lock() { return _process_lock; }
- int request_buffer_size (pframes_t);
+ int request_buffer_size (pframes_t samples) {
+ return set_buffer_size (samples);
+ }
framecnt_t processed_frames() const { return _processed_frames; }
void set_session (Session *);
void remove_session (); // not a replacement for SessionHandle::session_going_away()
-
+ Session* session() const { return _session; }
+
class NoBackendAvailable : public std::exception {
public:
virtual const char *what() const throw() { return "could not connect to engine backend"; }
int reset_timebase ();
void update_latencies ();
-
/* this signal is sent for every process() cycle while freewheeling.
(the regular process() call to session->process() is not made)
PBD::Signal1<int, pframes_t> Freewheel;
PBD::Signal0<void> Xrun;
-
- /* this signal is if the backend notifies us of a graph order event */
-
- PBD::Signal0<void> GraphReordered;
-
-#ifdef HAVE_JACK_SESSION
- PBD::Signal1<void,jack_session_event_t *> JackSessionEvent;
-#endif
-
+
/* this signal is emitted if the sample rate changes */
PBD::Signal1<void, framecnt_t> SampleRateChanged;
PBD::Signal0<void> Running;
PBD::Signal0<void> Stopped;
-
- /** Emitted if a Port is registered or unregistered */
- PBD::Signal0<void> PortRegisteredOrUnregistered;
-
- /** Emitted if a Port is connected or disconnected.
- * The Port parameters are the ports being connected / disconnected, or 0 if they are not known to Ardour.
- * The std::string parameters are the (long) port names.
- * The bool parameter is true if ports were connected, or false for disconnected.
- */
- PBD::Signal5<void, boost::weak_ptr<Port>, std::string, boost::weak_ptr<Port>, std::string, bool> PortConnectedOrDisconnected;
-
- std::string make_port_name_relative (std::string) const;
- std::string make_port_name_non_relative (std::string) const;
- bool port_is_mine (const std::string&) const;
-
+
static AudioEngine* instance() { return _instance; }
static void destroy();
void died ();
- /* The backend will cause this at the appropriate time(s)
+ /* The backend will cause these at the appropriate time(s)
*/
- int process_callback (pframes_t nframes);
-
+ int process_callback (pframes_t nframes);
+ int buffer_size_change (pframes_t nframes);
+ int sample_rate_change (pframes_t nframes);
+ void freewheel_callback (bool);
+ void timebase_callback (TransportState state, pframes_t nframes, framepos_t pos, int new_position);
+ int sync_callback (TransportState state, framepos_t position);
+ int port_registration_callback ();
+ void latency_callback (bool for_playback);
+ void halted_callback (const char* reason);
+
+ /* sets up the process callback thread */
+ static void thread_init_callback (void *);
+
+ /* latency measurement */
+
+ MTDM* mtdm();
+ int prepare_for_latency_measurement ();
+ int start_latency_detection ();
+ void stop_latency_detection ();
+ void set_latency_input_port (const std::string&);
+ void set_latency_output_port (const std::string&);
+ uint32_t latency_signal_delay () const { return _latency_signal_latency; }
+
private:
- AudioEngine (const std::string& client_name, const std::string& session_uuid);
+ AudioEngine ();
static AudioEngine* _instance;
- AudioBackend* _backend;
Glib::Threads::Mutex _process_lock;
Glib::Threads::Cond session_removed;
bool session_remove_pending;
gain_t session_removal_gain;
gain_t session_removal_gain_step;
bool _running;
- bool _has_run;
- mutable framecnt_t _buffer_size;
- std::map<DataType,size_t> _raw_buffer_sizes;
- mutable framecnt_t _frame_rate;
+ bool _freewheeling;
/// number of frames between each check for changes in monitor input
framecnt_t monitor_check_interval;
/// time of the last monitor check in frames
framecnt_t last_monitor_check;
/// the number of frames processed since start() was called
framecnt_t _processed_frames;
- bool _freewheeling;
- bool _pre_freewheel_mmc_enabled;
- int _usecs_per_cycle;
- bool port_remove_in_progress;
Glib::Threads::Thread* m_meter_thread;
ProcessThread* _main_thread;
-
- std::string backend_client_name;
- std::string backend_session_uuid;
-
+ MTDM* _mtdm;
+ bool _measuring_latency;
+ PortEngine::PortHandle _latency_input_port;
+ PortEngine::PortHandle _latency_output_port;
+ framecnt_t _latency_flush_frames;
+ std::string _latency_input_name;
+ std::string _latency_output_name;
+ framecnt_t _latency_signal_latency;
+ bool _stopped_for_latency;
+ bool _started_for_latency;
+ bool _in_destructor;
+
void meter_thread ();
void start_metering_thread ();
void stop_metering_thread ();
static gint m_meter_exit;
- void parameter_changed (const std::string&);
- PBD::ScopedConnection config_connection;
-
- typedef std::map<std::string,AudioBackend*> BackendMap;
+ typedef std::map<std::string,AudioBackendInfo*> BackendMap;
BackendMap _backends;
- AudioBackend* backend_discover (const std::string&);
+ AudioBackendInfo* backend_discover (const std::string&);
void drop_backend ();
};
projects / ardour.git / blobdiff