1 files changed, 0 insertions, 361 deletions
diff --git a/src/Classes/UAudioPlayback_Portaudio.pas b/src/Classes/UAudioPlayback_Portaudio.pas
deleted file mode 100644
index c3717ba6..00000000
--- a/src/Classes/UAudioPlayback_Portaudio.pas
+++ /dev/null
@@ -1,361 +0,0 @@
-unit UAudioPlayback_Portaudio;
-
-interface
-
-{$IFDEF FPC}
-  {$MODE Delphi}
-{$ENDIF}
-
-{$I switches.inc}
-
-
-uses
-  Classes,
-  SysUtils,
-  UMusic;
-
-implementation
-
-uses
-  portaudio,
-  UAudioCore_Portaudio,
-  UAudioPlayback_SoftMixer,
-  ULog,
-  UIni,
-  UMain;
-
-type
-  TAudioPlayback_Portaudio = class(TAudioPlayback_SoftMixer)
-    private
-      paStream:  PPaStream;
-      AudioCore: TAudioCore_Portaudio;
-      Latency: double;
-      function OpenDevice(deviceIndex: TPaDeviceIndex): boolean;
-      function EnumDevices(): boolean;
-    protected
-      function InitializeAudioPlaybackEngine(): boolean; override;
-      function StartAudioPlaybackEngine(): boolean;      override;
-      procedure StopAudioPlaybackEngine();               override;
-      function FinalizeAudioPlaybackEngine(): boolean;   override;
-      function GetLatency(): double;                     override;
-    public
-      function GetName: String;                          override;
-  end;
-
-  TPortaudioOutputDevice = class(TAudioOutputDevice)
-    private
-      PaDeviceIndex:  TPaDeviceIndex;
-  end;
-
-
-{ TAudioPlayback_Portaudio }
-
-function PortaudioAudioCallback(input: Pointer; output: Pointer; frameCount: Longword;
-    timeInfo: PPaStreamCallbackTimeInfo; statusFlags: TPaStreamCallbackFlags;
-    userData: Pointer): Integer; cdecl;
-var
-  Engine: TAudioPlayback_Portaudio;
-begin
-  Engine := TAudioPlayback_Portaudio(userData);
-  // update latency
-  Engine.Latency := timeInfo.outputBufferDacTime - timeInfo.currentTime;
-  // call superclass callback
-  Engine.AudioCallback(output, frameCount * Engine.FormatInfo.FrameSize);
-  Result := paContinue;
-end;
-
-function TAudioPlayback_Portaudio.GetName: String;
-begin
-  Result := 'Portaudio_Playback';
-end;
-
-function TAudioPlayback_Portaudio.OpenDevice(deviceIndex: TPaDeviceIndex): boolean;
-var
-  DeviceInfo : PPaDeviceInfo;
-  SampleRate : double;
-  OutParams  : TPaStreamParameters;
-  StreamInfo : PPaStreamInfo;
-  err        : TPaError;
-begin
-  Result := false;
-
-  DeviceInfo := Pa_GetDeviceInfo(deviceIndex);
-
-  Log.LogInfo('Audio-Output Device: ' + DeviceInfo^.name, 'TAudioPlayback_Portaudio.OpenDevice');
-
-  SampleRate := DeviceInfo^.defaultSampleRate;
-
-  with OutParams do
-  begin
-    device := deviceIndex;
-    channelCount := 2;
-    sampleFormat := paInt16;
-    suggestedLatency := DeviceInfo^.defaultLowOutputLatency;
-    hostApiSpecificStreamInfo := nil;
-  end;
-
-  // check souncard and adjust sample-rate
-  if not AudioCore.TestDevice(nil, @OutParams, SampleRate) then
-  begin
-    Log.LogStatus('TestDevice failed!', 'TAudioPlayback_Portaudio.OpenDevice');
-    Exit;
-  end;
-
-  // open output stream
-  err := Pa_OpenStream(paStream, nil, @OutParams, SampleRate,
-          paFramesPerBufferUnspecified,
-          paNoFlag, @PortaudioAudioCallback, Self);
-  if(err <> paNoError) then
-  begin
-    Log.LogStatus(Pa_GetErrorText(err), 'TAudioPlayback_Portaudio.OpenDevice');
-    paStream := nil;
-    Exit;
-  end;
-
-  // get estimated latency (will be updated with real latency in the callback)
-  StreamInfo := Pa_GetStreamInfo(paStream);
-  if (StreamInfo <> nil) then
-    Latency := StreamInfo^.outputLatency
-  else
-    Latency := 0;
-
-  FormatInfo := TAudioFormatInfo.Create(
-    OutParams.channelCount,
-    SampleRate,
-    asfS16 // FIXME: is paInt16 system-dependant or -independant?
-  );
-
-  Result := true;
-end;
-
-function TAudioPlayback_Portaudio.EnumDevices(): boolean;
-var
-  i:           integer;
-  paApiIndex:  TPaHostApiIndex;
-  paApiInfo:   PPaHostApiInfo;
-  deviceName:  string;
-  deviceIndex: TPaDeviceIndex;
-  deviceInfo:  PPaDeviceInfo;
-  channelCnt:  integer;
-  SC:          integer; // soundcard
-  err:         TPaError;
-  errMsg:      string;
-  paDevice:    TPortaudioOutputDevice;
-  outputParams: TPaStreamParameters;
-  stream:      PPaStream;
-  streamInfo:  PPaStreamInfo;
-  sampleRate:  double;
-  latency:     TPaTime;
-  cbPolls: integer;
-  cbWorks: boolean;
-begin
-  Result := false;
-
-(*
-  // choose the best available Audio-API
-  paApiIndex := AudioCore.GetPreferredApiIndex();
-  if(paApiIndex = -1) then
-  begin
-    Log.LogError('No working Audio-API found', 'TAudioPlayback_Portaudio.EnumDevices');
-    Exit;
-  end;
-
-  paApiInfo := Pa_GetHostApiInfo(paApiIndex);
-
-  SC := 0;
-
-  // init array-size to max. output-devices count
-  SetLength(OutputDeviceList, paApiInfo^.deviceCount);
-  for i:= 0 to High(OutputDeviceList) do
-  begin
-    // convert API-specific device-index to global index
-    deviceIndex := Pa_HostApiDeviceIndexToDeviceIndex(paApiIndex, i);
-    deviceInfo := Pa_GetDeviceInfo(deviceIndex);
-
-    channelCnt := deviceInfo^.maxOutputChannels;
-
-    // current device is no output device -> skip
-    if (channelCnt <= 0) then
-      continue;
-
-    // portaudio returns a channel-count of 128 for some devices
-    // (e.g. the "default"-device), so we have to detect those
-    // fantasy channel counts.
-    if (channelCnt > 8) then
-      channelCnt := 2;
-
-    paDevice := TPortaudioOutputDevice.Create();
-    OutputDeviceList[SC] := paDevice;
-
-    // retrieve device-name
-    deviceName := deviceInfo^.name;
-    paDevice.Name := deviceName;
-    paDevice.PaDeviceIndex := deviceIndex;
-
-    if (deviceInfo^.defaultSampleRate > 0) then
-      sampleRate := deviceInfo^.defaultSampleRate
-    else
-      sampleRate := 44100;
-
-    // on vista and xp the defaultLowInputLatency may be set to 0 but it works.
-    // TODO: correct too low latencies (what is a too low latency, maybe < 10ms?)
-    latency := deviceInfo^.defaultLowInputLatency;
-
-    // setup desired output parameters
-    // TODO: retry with input-latency set to 20ms (defaultLowOutputLatency might
-    //       not be set correctly in OSS)
-    with outputParams do
-    begin
-      device := deviceIndex;
-      channelCount := channelCnt;
-      sampleFormat := paInt16;
-      suggestedLatency := latency;
-      hostApiSpecificStreamInfo := nil;
-    end;
-
-    // check if mic-callback works (might not be called on some devices)
-    if (not TAudioCore_Portaudio.TestDevice(nil, @outputParams, sampleRate)) then
-    begin
-      // ignore device if callback did not work
-      Log.LogError('Device "'+paDevice.Name+'" does not respond',
-                   'TAudioPlayback_Portaudio.InitializeRecord');
-      paDevice.Free();
-      continue;
-    end;
-
-    // open device for further info
-    err := Pa_OpenStream(stream, nil, @outputParams, sampleRate,
-        paFramesPerBufferUnspecified, paNoFlag, @MicrophoneTestCallback, nil);
-    if(err <> paNoError) then
-    begin
-      // unable to open device -> skip
-      errMsg := Pa_GetErrorText(err);
-      Log.LogError('Device error: "'+ deviceName +'" ('+ errMsg +')',
-                   'TAudioPlayback_Portaudio.InitializeRecord');
-      paDevice.Free();
-      continue;
-    end;
-
-    // adjust sample-rate (might be changed by portaudio)
-    streamInfo := Pa_GetStreamInfo(stream);
-    if (streamInfo <> nil) then
-    begin
-      if (sampleRate <> streamInfo^.sampleRate) then
-      begin
-        Log.LogStatus('Portaudio changed Samplerate from ' + FloatToStr(sampleRate) +
-            ' to ' + FloatToStr(streamInfo^.sampleRate),
-            'TAudioInput_Portaudio.InitializeRecord');
-        sampleRate := streamInfo^.sampleRate;
-      end;
-    end;
-
-    // create audio-format info and resize capture-buffer array
-    paDevice.AudioFormat := TAudioFormatInfo.Create(
-        channelCnt,
-        sampleRate,
-        asfS16
-    );
-    SetLength(paDevice.CaptureChannel, paDevice.AudioFormat.Channels);
-
-    Log.LogStatus('OutputDevice "'+paDevice.Name+'"@' +
-        IntToStr(paDevice.AudioFormat.Channels)+'x'+
-        FloatToStr(paDevice.AudioFormat.SampleRate)+'Hz ('+
-        FloatTostr(outputParams.suggestedLatency)+'sec)' ,
-        'TAudioInput_Portaudio.InitializeRecord');
-
-    // close test-stream
-    Pa_CloseStream(stream);
-
-    Inc(SC);
-  end;
-
-  // adjust size to actual input-device count
-  SetLength(OutputDeviceList, SC);
-
-  Log.LogStatus('#Output-Devices: ' + inttostr(SC), 'Portaudio');
-*)
-
-  Result := true;
-end;
-
-function TAudioPlayback_Portaudio.InitializeAudioPlaybackEngine(): boolean;
-var
-  paApiIndex      : TPaHostApiIndex;
-  paApiInfo       : PPaHostApiInfo;
-  paOutDevice     : TPaDeviceIndex;
-  err: TPaError;
-begin
-  Result := false;
-
-  AudioCore := TAudioCore_Portaudio.GetInstance();
-
-  // initialize portaudio
-  err := Pa_Initialize();
-  if(err <> paNoError) then
-  begin
-    Log.LogError(Pa_GetErrorText(err), 'TAudioInput_Portaudio.InitializeRecord');
-    Exit;
-  end;
-
-  paApiIndex := AudioCore.GetPreferredApiIndex();
-  if(paApiIndex = -1) then
-  begin
-    Log.LogError('No working Audio-API found', 'TAudioPlayback_Portaudio.InitializeAudioPlaybackEngine');
-    Exit;
-  end;
-
-  EnumDevices();
-
-  paApiInfo := Pa_GetHostApiInfo(paApiIndex);
-  Log.LogInfo('Audio-Output API-Type: ' + paApiInfo^.name, 'TAudioPlayback_Portaudio.OpenDevice');
-
-  paOutDevice := paApiInfo^.defaultOutputDevice;
-  if (not OpenDevice(paOutDevice)) then
-  begin
-    Exit;
-  end;
-
-  Result := true;
-end;
-
-function TAudioPlayback_Portaudio.StartAudioPlaybackEngine(): boolean;
-var
-  err: TPaError;
-begin
-  Result := false;
-
-  if (paStream = nil) then
-    Exit;
-
-  err := Pa_StartStream(paStream);
-  if(err <> paNoError) then
-  begin
-    Log.LogStatus('Pa_StartStream: '+Pa_GetErrorText(err), 'UAudioPlayback_Portaudio');
-    Exit;
-  end;
-
-  Result := true;
-end;
-
-procedure TAudioPlayback_Portaudio.StopAudioPlaybackEngine();
-begin
-  if (paStream <> nil) then
-    Pa_StopStream(paStream);
-end;
-
-function TAudioPlayback_Portaudio.FinalizeAudioPlaybackEngine(): boolean;
-begin
-  Pa_Terminate();
-  Result := true;
-end;
-
-function TAudioPlayback_Portaudio.GetLatency(): double;
-begin
-  Result := Latency;
-end;
-
-
-initialization
-  MediaManager.Add(TAudioPlayback_Portaudio.Create);
-
-end.