fix detecting .flac format

[ardour.git] / libs / backends / portaudio / portaudio_io.h

diff --git a/libs/backends/portaudio/portaudio_io.h b/libs/backends/portaudio/portaudio_io.h
index 3b656fd06b0a801e60ac6facd3a8e77388d43e8b..c67fdc1b19c5efbfa653c88b46d51f9076a80a26 100644 (file)
--- a/libs/backends/portaudio/portaudio_io.h
+++ b/libs/backends/portaudio/portaudio_io.h
@@ -35,15 +35,11 @@ public:
        PortAudioIO (void);
        ~PortAudioIO (void);
 
-       int      state (void) const { return _state; }
-
        enum StandardDevices {
                DeviceNone = -2,
                DeviceDefault = -1
        };
 
-       bool     initialize_pa ();
-
        void host_api_list (std::vector<std::string>&);
        bool set_host_api (const std::string& host_api_name);
        std::string get_host_api () const { return _host_api_name; }
@@ -53,7 +49,7 @@ public:
        PaDeviceIndex get_default_input_device () const;
        PaDeviceIndex get_default_output_device () const;
 
-       void     discover();
+       bool     update_devices();
        void     input_device_list (std::map<int, std::string> &devices) const;
        void     output_device_list (std::map<int, std::string> &devices) const;
 
@@ -67,21 +63,29 @@ public:
                                         long& preferred_size_frames,
                                         long& granularity);
 
-       bool get_asio_buffer_sizes (int device_id, std::vector<uint32_t>& buffer_size);
+       bool get_asio_buffer_sizes(int device_id,
+                                  std::vector<uint32_t>& buffer_size,
+                                  bool preferred_only);
 #endif
 
        std::string control_app_name (int device_id) const;
        void launch_control_app (int device_id);
 
-       void     pcm_stop (void);
-       int      pcm_start (void);
+       PaErrorCode open_blocking_stream(int device_input,
+                                        int device_output,
+                                        double sample_rate,
+                                        uint32_t samples_per_period);
+
+       PaErrorCode open_callback_stream(int device_input,
+                                        int device_output,
+                                        double sample_rate,
+                                        uint32_t samples_per_period,
+                                        PaStreamCallback* callback,
+                                        void* data);
 
-       int      pcm_setup (
-                       int device_input,
-                       int device_output,
-                       double   sample_rate,
-                       uint32_t samples_per_period
-                       );
+       PaErrorCode start_stream(void);
+
+       PaErrorCode close_stream(void);
 
        uint32_t n_playback_channels (void) const { return _playback_channels; }
        uint32_t n_capture_channels (void) const { return _capture_channels; }
@@ -98,24 +102,40 @@ public:
        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);
 
+       float* get_capture_buffer () { return _input_buffer; }
+       float* get_playback_buffer () { return _output_buffer; }
+
 private: // Methods
 
+       static bool pa_initialize();
+       static bool pa_deinitialize();
+       static bool& pa_initialized();
+
        void clear_device_lists ();
        void add_none_devices ();
        void add_default_devices ();
        void add_devices ();
        std::string get_host_api_name_from_index (PaHostApiIndex index);
 
-       bool set_sample_rate_and_latency_from_stream ();
+       bool get_output_stream_params(int device_output,
+                                     PaStreamParameters& outputParam) const;
+       bool get_input_stream_params(int device_input,
+                                    PaStreamParameters& inputParam) const;
+
+       bool set_sample_rate_and_latency_from_stream();
        bool allocate_buffers_for_blocking_api (uint32_t samples_per_period);
 
+       PaErrorCode pre_stream_open(int device_input,
+                                 PaStreamParameters& inputParam,
+                                 int device_output,
+                                 PaStreamParameters& outputParam);
+
+       void reset_stream_dependents ();
+
        static void get_default_sample_rates(std::vector<float>&);
        static void get_default_buffer_sizes(std::vector<uint32_t>&);
 
 private: // Data
-       int  _state;
-       bool _initialized;
-
        uint32_t _capture_channels;
        uint32_t _playback_channels;