diff options
Diffstat (limited to 'Game/Code/Classes/UAudioInput_Portaudio.pas')
| -rw-r--r-- | Game/Code/Classes/UAudioInput_Portaudio.pas | 347 |
1 files changed, 0 insertions, 347 deletions
diff --git a/Game/Code/Classes/UAudioInput_Portaudio.pas b/Game/Code/Classes/UAudioInput_Portaudio.pas deleted file mode 100644 index 753c69f6..00000000 --- a/Game/Code/Classes/UAudioInput_Portaudio.pas +++ /dev/null @@ -1,347 +0,0 @@ -unit UAudioInput_Portaudio; - -interface - -{$IFDEF FPC} - {$MODE Delphi} -{$ENDIF} - -{$I ../switches.inc} - - -uses - Classes, - SysUtils, - UMusic; - -implementation - -uses - URecord, - UIni, - ULog, - UMain, - {$IFDEF UsePortmixer} - portmixer, - {$ENDIF} - portaudio; - -type - TAudioInput_Portaudio = class(TAudioInputBase) - private - function GetPreferredApiIndex(): TPaHostApiIndex; - public - function GetName: String; override; - function InitializeRecord: boolean; override; - destructor Destroy; override; - end; - - TPortaudioInputDevice = class(TAudioInputDevice) - public - RecordStream: PPaStream; - PaDeviceIndex: TPaDeviceIndex; - - procedure Start(); override; - procedure Stop(); override; - end; - -function MicrophoneCallback(input: Pointer; output: Pointer; frameCount: Longword; - timeInfo: PPaStreamCallbackTimeInfo; statusFlags: TPaStreamCallbackFlags; - inputDevice: Pointer): Integer; cdecl; forward; - -var - singleton_AudioInputPortaudio : IAudioInput; - -{* the default API used by Portaudio is the least common denominator - * and might lack efficiency. ApiPreferenceOrder defines the order of - * preferred APIs to use. The first API-type in the list is tried first. If it's - * not available the next is tried, ... - * If none of the preferred APIs was found the default API is used. - * Pascal doesn't permit zero-length static arrays, so you can use paDefaultApi - * as an array's only member if you do not have any preferences. - * paDefaultApi also terminates a preferences list but this is optional. - *} -const - paDefaultApi = -1; -var - ApiPreferenceOrder: -{$IF Defined(WIN32)} - // Note1: Portmixer has no mixer support for paASIO and paWASAPI at the moment - // Note2: Windows Default-API is MME - //array[0..0] of TPaHostApiTypeId = ( paDirectSound, paMME ); - array[0..0] of TPaHostApiTypeId = ( paDirectSound ); -{$ELSEIF Defined(LINUX)} - // Note1: Portmixer has no mixer support for paJACK at the moment - // Note2: Not tested, but ALSA might be better than OSS. - array[0..1] of TPaHostApiTypeId = ( paALSA, paOSS ); -{$ELSEIF Defined(DARWIN)} - // Note: Not tested. - //array[0..0] of TPaHostApiTypeId = ( paCoreAudio ); - array[0..0] of TPaHostApiTypeId = ( paDefaultApi ); -{$ELSE} - array[0..0] of TPaHostApiTypeId = ( paDefaultApi ); -{$IFEND} - - -{ TPortaudioInputDevice } - -procedure TPortaudioInputDevice.Start(); -var - Error: TPaError; - ErrorMsg: string; - inputParams: TPaStreamParameters; - deviceInfo: PPaDeviceInfo; -begin - // get input latency info - deviceInfo := Pa_GetDeviceInfo(PaDeviceIndex); - - // set input stream parameters - with inputParams do begin - device := PaDeviceIndex; - channelCount := 2; - sampleFormat := paInt16; - suggestedLatency := deviceInfo^.defaultLowInputLatency; - hostApiSpecificStreamInfo := nil; - end; - - Log.LogStatus(inttostr(PaDeviceIndex), 'Portaudio'); - Log.LogStatus(floattostr(deviceInfo^.defaultLowInputLatency), 'Portaudio'); - - // open input stream - Error := Pa_OpenStream(RecordStream, @inputParams, nil, SampleRate, - paFramesPerBufferUnspecified, paNoFlag, - @MicrophoneCallback, Pointer(Self)); - if(Error <> paNoError) then begin - ErrorMsg := Pa_GetErrorText(Error); - Log.CriticalError('TPortaudioInputDevice.Start(): Error opening stream: ' + ErrorMsg); - //Halt; - end; - - // start capture - Error := Pa_StartStream(RecordStream); - if(Error <> paNoError) then begin - Pa_CloseStream(RecordStream); - ErrorMsg := Pa_GetErrorText(Error); - Log.CriticalError('TPortaudioInputDevice.Start(): Error starting stream: ' + ErrorMsg); - //Halt; - end; -end; - -procedure TPortaudioInputDevice.Stop(); -begin - if assigned(RecordStream) then begin - Pa_StopStream(RecordStream); - Pa_CloseStream(RecordStream); - end; -end; - - -{ TAudioInput_Portaudio } - -function TAudioInput_Portaudio.GetName: String; -begin - result := 'Portaudio'; -end; - -function TAudioInput_Portaudio.GetPreferredApiIndex(): TPaHostApiIndex; -var - i: integer; -begin - result := -1; - - // select preferred sound-API - for i:= 0 to High(ApiPreferenceOrder) do - begin - if(ApiPreferenceOrder[i] <> paDefaultApi) then begin - // check if API is available - result := Pa_HostApiTypeIdToHostApiIndex(ApiPreferenceOrder[i]); - if(result >= 0) then - break; - end; - end; - - // None of the preferred APIs is available -> use default - if(result < 0) then begin - result := Pa_GetDefaultHostApi(); - end; -end; - -function TAudioInput_Portaudio.InitializeRecord(): boolean; -var - i: integer; - apiIndex: TPaHostApiIndex; - apiInfo: PPaHostApiInfo; - deviceName: string; - deviceIndex: TPaDeviceIndex; - deviceInfo: PPaDeviceInfo; - sourceCnt: integer; - sourceName: string; - SC: integer; // soundcard - SCI: integer; // soundcard source - err: TPaError; - errMsg: string; - paDevice: TPortaudioInputDevice; - inputParams: TPaStreamParameters; - stream: PPaStream; - {$IFDEF UsePortmixer} - mixer: PPxMixer; - {$ENDIF} -const - captureFreq = 44100; -begin - result := false; - - err := Pa_Initialize(); - if(err <> paNoError) then begin - Log.LogError('Portaudio.InitializeRecord: ' + Pa_GetErrorText(err)); - Exit; - end; - apiIndex := GetPreferredApiIndex(); - apiInfo := Pa_GetHostApiInfo(apiIndex); - - SC := 0; - - // init array-size to max. input-devices count - SetLength(AudioInputProcessor.Device, apiInfo^.deviceCount); - for i:= 0 to High(AudioInputProcessor.Device) do - begin - // convert API-specific device-index to global index - deviceIndex := Pa_HostApiDeviceIndexToDeviceIndex(apiIndex, i); - deviceInfo := Pa_GetDeviceInfo(deviceIndex); - - // current device is no input device -> skip - if(deviceInfo^.maxInputChannels <= 0) then - continue; - - paDevice := TPortaudioInputDevice.Create(); - AudioInputProcessor.Device[SC] := paDevice; - - // retrieve device-name - deviceName := deviceInfo^.name; - paDevice.Description := deviceName; - paDevice.PaDeviceIndex := deviceIndex; - - // setup desired input parameters - with inputParams do begin - device := deviceIndex; - channelCount := 2; - sampleFormat := paInt16; - suggestedLatency := deviceInfo^.defaultLowInputLatency; - hostApiSpecificStreamInfo := nil; - end; - - paDevice.SampleRate := captureFreq; - - // check if device supports our input-format - err := Pa_IsFormatSupported(@inputParams, nil, paDevice.SampleRate); - if(err <> 0) then begin - // format not supported -> skip - errMsg := Pa_GetErrorText(err); - Log.LogError('Portaudio.InitializeRecord, device: "'+ deviceName +'" ' - + '('+ errMsg +')'); - paDevice.Free(); - continue; - end; - - // TODO: retry with mono if stereo is not supported - // TODO: retry with input-latency set to 20ms (defaultLowInputLatency might - // not be set correctly in OSS) - // use TPaDeviceInfo.defaultSampleRate - - err := Pa_OpenStream(stream, @inputParams, nil, paDevice.SampleRate, - paFramesPerBufferUnspecified, paNoFlag, @MicrophoneCallback, nil); - if(err <> paNoError) then begin - // unable to open device -> skip - errMsg := Pa_GetErrorText(err); - Log.LogError('Portaudio.InitializeRecord, device: "'+ deviceName +'" ' - + '('+ errMsg +')'); - paDevice.Free(); - continue; - end; - - - {$IFDEF UsePortmixer} - - // use default mixer - mixer := Px_OpenMixer(stream, 0); - - // get input count - sourceCnt := Px_GetNumInputSources(mixer); - SetLength(paDevice.Source, sourceCnt); - - // get input names - for SCI := 0 to sourceCnt-1 do - begin - sourceName := Px_GetInputSourceName(mixer, SCI); - paDevice.Source[SCI].Name := sourceName; - end; - - Px_CloseMixer(mixer); - - {$ELSE} // !UsePortmixer - - //Pa_StartStream(stream); - // TODO: check if callback was called (this problem may occur on some devices) - //Pa_StopStream(stream); - - // create a standard input source - SetLength(paDevice.Source, 1); - paDevice.Source[0].Name := 'Standard'; - - {$ENDIF} - - // close test-stream - Pa_CloseStream(stream); - - // use default input source - paDevice.SourceSelected := 0; - - Inc(SC); - end; - - // adjust size to actual input-device count - SetLength(AudioInputProcessor.Device, SC); - - Log.LogStatus('#Soundcards: ' + inttostr(SC), 'Portaudio'); - - { - SoundCard[SC].InputSelected := Mic[Device]; - } - result := true; -end; - -destructor TAudioInput_Portaudio.Destroy; -var - i: integer; - paSoundCard: TPortaudioInputDevice; -begin - Pa_Terminate(); - for i := 0 to High(AudioInputProcessor.Device) do - begin - AudioInputProcessor.Device[i].Free(); - end; - AudioInputProcessor.Device := nil; - - inherited Destroy; -end; - -{* - * Portaudio input capture callback. - *} -function MicrophoneCallback(input: Pointer; output: Pointer; frameCount: Longword; - timeInfo: PPaStreamCallbackTimeInfo; statusFlags: TPaStreamCallbackFlags; - inputDevice: Pointer): Integer; cdecl; -begin - AudioInputProcessor.HandleMicrophoneData(input, frameCount*4, inputDevice); - result := paContinue; -end; - - -initialization - singleton_AudioInputPortaudio := TAudioInput_Portaudio.create(); - AudioManager.add( singleton_AudioInputPortaudio ); - -finalization - AudioManager.Remove( singleton_AudioInputPortaudio ); - -end. |