From 4c6d2f4cd49a4f6016026ef81db31c3656bb5e8c Mon Sep 17 00:00:00 2001 From: tobigun Date: Sat, 13 Sep 2008 08:27:50 +0000 Subject: Media modules moved from base to media git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@1374 b956fd51-792f-4845-bead-9b4dfca2ff2c --- src/base/UAudioInput_Portaudio.pas | 474 ------------------------------------- 1 file changed, 474 deletions(-) delete mode 100644 src/base/UAudioInput_Portaudio.pas (limited to 'src/base/UAudioInput_Portaudio.pas') diff --git a/src/base/UAudioInput_Portaudio.pas b/src/base/UAudioInput_Portaudio.pas deleted file mode 100644 index 9a1c3e99..00000000 --- a/src/base/UAudioInput_Portaudio.pas +++ /dev/null @@ -1,474 +0,0 @@ -unit UAudioInput_Portaudio; - -interface - -{$IFDEF FPC} - {$MODE Delphi} -{$ENDIF} - -{$I ../switches.inc} - - -uses - Classes, - SysUtils, - UMusic; - -implementation - -uses - {$IFDEF UsePortmixer} - portmixer, - {$ENDIF} - portaudio, - UAudioCore_Portaudio, - URecord, - UIni, - ULog, - UMain; - -type - TAudioInput_Portaudio = class(TAudioInputBase) - private - AudioCore: TAudioCore_Portaudio; - function EnumDevices(): boolean; - public - function GetName: String; override; - function InitializeRecord: boolean; override; - function FinalizeRecord: boolean; override; - end; - - TPortaudioInputDevice = class(TAudioInputDevice) - private - RecordStream: PPaStream; - {$IFDEF UsePortmixer} - Mixer: PPxMixer; - {$ENDIF} - PaDeviceIndex: TPaDeviceIndex; - public - function Open(): boolean; - function Close(): boolean; - function Start(): boolean; override; - function Stop(): boolean; override; - - function GetVolume(): single; override; - procedure SetVolume(Volume: single); override; - end; - -function MicrophoneCallback(input: Pointer; output: Pointer; frameCount: Longword; - timeInfo: PPaStreamCallbackTimeInfo; statusFlags: TPaStreamCallbackFlags; - inputDevice: Pointer): Integer; cdecl; forward; - -function MicrophoneTestCallback(input: Pointer; output: Pointer; frameCount: Longword; - timeInfo: PPaStreamCallbackTimeInfo; statusFlags: TPaStreamCallbackFlags; - inputDevice: Pointer): Integer; cdecl; forward; - - -{ TPortaudioInputDevice } - -function TPortaudioInputDevice.Open(): boolean; -var - Error: TPaError; - inputParams: TPaStreamParameters; - deviceInfo: PPaDeviceInfo; - SourceIndex: integer; -begin - Result := false; - - // get input latency info - deviceInfo := Pa_GetDeviceInfo(PaDeviceIndex); - - // set input stream parameters - with inputParams do - begin - device := PaDeviceIndex; - channelCount := AudioFormat.Channels; - sampleFormat := paInt16; - suggestedLatency := deviceInfo^.defaultLowInputLatency; - hostApiSpecificStreamInfo := nil; - end; - - //Log.LogStatus(deviceInfo^.name, 'Portaudio'); - //Log.LogStatus(floattostr(deviceInfo^.defaultLowInputLatency), 'Portaudio'); - - // open input stream - Error := Pa_OpenStream(RecordStream, @inputParams, nil, - AudioFormat.SampleRate, - paFramesPerBufferUnspecified, paNoFlag, - @MicrophoneCallback, Pointer(Self)); - if(Error <> paNoError) then - begin - Log.LogError('Error opening stream: ' + Pa_GetErrorText(Error), 'TPortaudioInputDevice.Open'); - Exit; - end; - - {$IFDEF UsePortmixer} - // open default mixer - Mixer := Px_OpenMixer(RecordStream, 0); - if (Mixer = nil) then - begin - Log.LogError('Error opening mixer: ' + Pa_GetErrorText(Error), 'TPortaudioInputDevice.Open'); - end - else - begin - // save current source selection and select new source - SourceIndex := Ini.InputDeviceConfig[CfgIndex].Input-1; - if (SourceIndex = -1) then - begin - // nothing to do if default source is used - SourceRestore := -1; - end - else - begin - // store current source-index and select new source - SourceRestore := Px_GetCurrentInputSource(Mixer); // -1 in error case - Px_SetCurrentInputSource(Mixer, SourceIndex); - end; - end; - {$ENDIF} - - Result := true; -end; - -function TPortaudioInputDevice.Start(): boolean; -var - Error: TPaError; -begin - Result := false; - - // recording already started -> stop first - if (RecordStream <> nil) then - Stop(); - - // TODO: Do not open the device here (takes too much time). - if (not Open()) then - Exit; - - // start capture - Error := Pa_StartStream(RecordStream); - if(Error <> paNoError) then - begin - Log.LogError('Error starting stream: ' + Pa_GetErrorText(Error), 'TPortaudioInputDevice.Start'); - Close(); - RecordStream := nil; - Exit; - end; - - Result := true; -end; - -function TPortaudioInputDevice.Stop(): boolean; -var - Error: TPaError; -begin - Result := false; - - if (RecordStream = nil) then - Exit; - - // Note: do NOT call Pa_StopStream here! - // It gets stuck on devices with non-working callback as Pa_StopStream - // waits until all buffers have been handled (which never occurs in that case). - Error := Pa_AbortStream(RecordStream); - if (Error <> paNoError) then - begin - Log.LogError('Pa_AbortStream: ' + Pa_GetErrorText(Error), 'TPortaudioInputDevice.Stop'); - end; - - Result := Close(); -end; - -function TPortaudioInputDevice.Close(): boolean; -var - Error: TPaError; -begin - {$IFDEF UsePortmixer} - if (Mixer <> nil) then - begin - // restore source selection - if (SourceRestore >= 0) then - begin - Px_SetCurrentInputSource(Mixer, SourceRestore); - end; - - // close mixer - Px_CloseMixer(Mixer); - Mixer := nil; - end; - {$ENDIF} - - Error := Pa_CloseStream(RecordStream); - if (Error <> paNoError) then - begin - Log.LogError('Pa_CloseStream: ' + Pa_GetErrorText(Error), 'TPortaudioInputDevice.Close'); - Result := false; - end - else - begin - Result := true; - end; - - RecordStream := nil; -end; - -function TPortaudioInputDevice.GetVolume(): single; -begin - Result := 0; - {$IFDEF UsePortmixer} - if (Mixer <> nil) then - Result := Px_GetInputVolume(Mixer); - {$ENDIF} -end; - -procedure TPortaudioInputDevice.SetVolume(Volume: single); -begin - {$IFDEF UsePortmixer} - if (Mixer <> nil) then - begin - // clip to valid range - if (Volume > 1.0) then - Volume := 1.0 - else if (Volume < 0) then - Volume := 0; - Px_SetInputVolume(Mixer, Volume); - end; - {$ENDIF} -end; - - -{ TAudioInput_Portaudio } - -function TAudioInput_Portaudio.GetName: String; -begin - result := 'Portaudio'; -end; - -function TAudioInput_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: TPortaudioInputDevice; - inputParams: TPaStreamParameters; - stream: PPaStream; - streamInfo: PPaStreamInfo; - sampleRate: double; - latency: TPaTime; - {$IFDEF UsePortmixer} - mixer: PPxMixer; - sourceCnt: integer; - sourceIndex: integer; - sourceName: string; - {$ENDIF} - 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', 'TAudioInput_Portaudio.EnumDevices'); - Exit; - end; - - paApiInfo := Pa_GetHostApiInfo(paApiIndex); - - SC := 0; - - // init array-size to max. input-devices count - SetLength(AudioInputProcessor.DeviceList, paApiInfo^.deviceCount); - for i:= 0 to High(AudioInputProcessor.DeviceList) do - begin - // convert API-specific device-index to global index - deviceIndex := Pa_HostApiDeviceIndexToDeviceIndex(paApiIndex, i); - deviceInfo := Pa_GetDeviceInfo(deviceIndex); - - channelCnt := deviceInfo^.maxInputChannels; - - // current device is no input 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 := TPortaudioInputDevice.Create(); - AudioInputProcessor.DeviceList[SC] := paDevice; - - // retrieve device-name - deviceName := deviceInfo^.name; - paDevice.Name := deviceName; - paDevice.PaDeviceIndex := deviceIndex; - - sampleRate := deviceInfo^.defaultSampleRate; - - // 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 input parameters - // TODO: retry with input-latency set to 20ms (defaultLowInputLatency might - // not be set correctly in OSS) - with inputParams do - begin - device := deviceIndex; - channelCount := channelCnt; - sampleFormat := paInt16; - suggestedLatency := latency; - hostApiSpecificStreamInfo := nil; - end; - - // check souncard and adjust sample-rate - if (not AudioCore.TestDevice(@inputParams, nil, sampleRate)) then - begin - // ignore device if it does not work - Log.LogError('Device "'+paDevice.Name+'" does not work', - 'TAudioInput_Portaudio.EnumDevices'); - paDevice.Free(); - continue; - end; - - // open device for further info - err := Pa_OpenStream(stream, @inputParams, nil, 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 +')', - 'TAudioInput_Portaudio.EnumDevices'); - 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('InputDevice "'+paDevice.Name+'"@' + - IntToStr(paDevice.AudioFormat.Channels)+'x'+ - FloatToStr(paDevice.AudioFormat.SampleRate)+'Hz ('+ - FloatTostr(inputParams.suggestedLatency)+'sec)' , - 'Portaudio.EnumDevices'); - - // portaudio does not provide a source-type check - paDevice.MicSource := -1; - paDevice.SourceRestore := -1; - - // add a virtual default source (will not change mixer-settings) - SetLength(paDevice.Source, 1); - paDevice.Source[0].Name := DEFAULT_SOURCE_NAME; - - {$IFDEF UsePortmixer} - // use default mixer - mixer := Px_OpenMixer(stream, 0); - - // get input count - sourceCnt := Px_GetNumInputSources(mixer); - SetLength(paDevice.Source, sourceCnt+1); - - // get input names - for sourceIndex := 1 to sourceCnt do - begin - sourceName := Px_GetInputSourceName(mixer, sourceIndex-1); - paDevice.Source[sourceIndex].Name := sourceName; - end; - - Px_CloseMixer(mixer); - {$ENDIF} - - // close test-stream - Pa_CloseStream(stream); - - Inc(SC); - end; - - // adjust size to actual input-device count - SetLength(AudioInputProcessor.DeviceList, SC); - - Log.LogStatus('#Input-Devices: ' + inttostr(SC), 'Portaudio'); - - Result := true; -end; - -function TAudioInput_Portaudio.InitializeRecord(): boolean; -var - err: TPaError; -begin - AudioCore := TAudioCore_Portaudio.GetInstance(); - - // initialize portaudio - err := Pa_Initialize(); - if(err <> paNoError) then - begin - Log.LogError(Pa_GetErrorText(err), 'TAudioInput_Portaudio.InitializeRecord'); - Result := false; - Exit; - end; - - Result := EnumDevices(); -end; - -function TAudioInput_Portaudio.FinalizeRecord: boolean; -begin - CaptureStop; - Pa_Terminate(); - Result := inherited FinalizeRecord(); -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; - -{* - * Portaudio test capture callback. - *} -function MicrophoneTestCallback(input: Pointer; output: Pointer; frameCount: Longword; - timeInfo: PPaStreamCallbackTimeInfo; statusFlags: TPaStreamCallbackFlags; - inputDevice: Pointer): Integer; cdecl; -begin - // this callback is called only once - result := paAbort; -end; - - -initialization - MediaManager.add(TAudioInput_Portaudio.Create); - -end. -- cgit v1.2.3