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-rw-r--r--src/base/URecord.pas127
1 files changed, 59 insertions, 68 deletions
diff --git a/src/base/URecord.pas b/src/base/URecord.pas
index 00d82abb..ec6935bd 100644
--- a/src/base/URecord.pas
+++ b/src/base/URecord.pas
@@ -44,17 +44,17 @@ uses
const
BaseToneFreq = 65.4064; // lowest (half-)tone to analyze (C2 = 65.4064 Hz)
- NumHalftones = 36; // C2-B4 (for Whitney and my high voice)
+ NumHalftones = 36; // C2-B4 (for Whitney and my high voice)
type
TCaptureBuffer = class
private
- VoiceStream: TAudioVoiceStream; // stream for voice passthrough
+ VoiceStream: TAudioVoiceStream; // stream for voice passthrough
AnalysisBufferLock: PSDL_Mutex;
function GetToneString: string; // converts a tone to its string represenatation;
- procedure BoostBuffer(Buffer: PByteArray; Size: Cardinal);
+ procedure BoostBuffer(Buffer: PByteArray; Size: cardinal);
procedure ProcessNewBuffer(Buffer: PByteArray; BufferSize: integer);
// we call it to analyze sound by checking Autocorrelation
@@ -86,7 +86,7 @@ type
procedure LockAnalysisBuffer(); {$IFDEF HasInline}inline;{$ENDIF}
procedure UnlockAnalysisBuffer(); {$IFDEF HasInline}inline;{$ENDIF}
- function MaxSampleVolume: Single;
+ function MaxSampleVolume: single;
property ToneString: string READ GetToneString;
end;
@@ -95,17 +95,17 @@ const
type
TAudioInputSource = record
- Name: string;
+ Name: string;
end;
// soundcard input-devices information
TAudioInputDevice = class
public
- CfgIndex: integer; // index of this device in Ini.InputDeviceConfig
- Name: string; // soundcard name
- Source: array of TAudioInputSource; // soundcard input-sources
- SourceRestore: integer; // source-index that will be selected after capturing (-1: not detected)
- MicSource: integer; // source-index of mic (-1: none detected)
+ CfgIndex: integer; // index of this device in Ini.InputDeviceConfig
+ Name: string; // soundcard name
+ Source: array of TAudioInputSource; // soundcard input-sources
+ SourceRestore: integer; // source-index that will be selected after capturing (-1: not detected)
+ MicSource: integer; // source-index of mic (-1: none detected)
AudioFormat: TAudioFormatInfo; // capture format info (e.g. 44.1kHz SInt16 stereo)
CaptureChannel: array of TCaptureBuffer; // sound-buffer references used for mono or stereo channel's capture data
@@ -115,10 +115,10 @@ type
procedure LinkCaptureBuffer(ChannelIndex: integer; Sound: TCaptureBuffer);
// TODO: add Open/Close functions so Start/Stop becomes faster
- //function Open(): boolean; virtual; abstract;
- //function Close(): boolean; virtual; abstract;
- function Start(): boolean; virtual; abstract;
- function Stop(): boolean; virtual; abstract;
+ //function Open(): boolean; virtual; abstract;
+ //function Close(): boolean; virtual; abstract;
+ function Start(): boolean; virtual; abstract;
+ function Stop(): boolean; virtual; abstract;
function GetVolume(): single; virtual; abstract;
procedure SetVolume(Volume: single); virtual; abstract;
@@ -135,7 +135,7 @@ type
procedure UpdateInputDeviceConfig;
// handle microphone input
- procedure HandleMicrophoneData(Buffer: PByteArray; Size: Cardinal;
+ procedure HandleMicrophoneData(Buffer: PByteArray; Size: cardinal;
InputDevice: TAudioInputDevice);
end;
@@ -153,7 +153,6 @@ type
procedure CaptureStop;
end;
-
TSmallIntArray = array [0..(MaxInt div SizeOf(SmallInt))-1] of SmallInt;
PSmallIntArray = ^TSmallIntArray;
@@ -168,7 +167,6 @@ uses
var
singleton_AudioInputProcessor : TAudioInputProcessor = nil;
-
{ Global }
function AudioInputProcessor(): TAudioInputProcessor;
@@ -179,7 +177,6 @@ begin
result := singleton_AudioInputProcessor;
end;
-
{ TAudioInputDevice }
destructor TAudioInputDevice.Destroy;
@@ -271,8 +268,8 @@ end;
procedure TCaptureBuffer.ProcessNewBuffer(Buffer: PByteArray; BufferSize: integer);
var
BufferOffset: integer;
- SampleCount: integer;
- i: integer;
+ SampleCount: integer;
+ i: integer;
begin
// apply software boost
BoostBuffer(Buffer, BufferSize);
@@ -299,7 +296,6 @@ begin
SampleCount := Length(AnalysisBuffer);
end;
-
LockAnalysisBuffer();
try
@@ -315,7 +311,6 @@ begin
UnlockAnalysisBuffer();
end;
-
// save capture-data to BufferLong if enabled
if (Ini.SavePlayback = 1) then
begin
@@ -329,10 +324,10 @@ end;
procedure TCaptureBuffer.AnalyzeBuffer;
var
- Volume: single;
- MaxVolume: single;
+ Volume: single;
+ MaxVolume: single;
SampleIndex: integer;
- Threshold: single;
+ Threshold: single;
begin
ToneValid := false;
ToneAbs := -1;
@@ -431,10 +426,10 @@ begin
Result := 1 - AccumDist / AnalysisBufferSize;
end;
-function TCaptureBuffer.MaxSampleVolume: Single;
+function TCaptureBuffer.MaxSampleVolume: single;
var
- lSampleIndex: Integer;
- lMaxVol : Longint;
+ lSampleIndex: integer;
+ lMaxVol: longint;
begin;
LockAnalysisBuffer();
try
@@ -464,13 +459,13 @@ begin
Result := '-';
end;
-procedure TCaptureBuffer.BoostBuffer(Buffer: PByteArray; Size: Cardinal);
+procedure TCaptureBuffer.BoostBuffer(Buffer: PByteArray; Size: cardinal);
var
- i: integer;
- Value: Longint;
- SampleCount: integer;
+ i: integer;
+ Value: longint;
+ SampleCount: integer;
SampleBuffer: PSmallIntArray; // buffer handled as array of samples
- Boost: byte;
+ Boost: byte;
begin
// TODO: set boost per device
case Ini.MicBoost of
@@ -504,7 +499,6 @@ begin
end;
end;
-
{ TAudioInputProcessor }
constructor TAudioInputProcessor.Create;
@@ -531,14 +525,14 @@ end;
// See: TIni.LoadInputDeviceCfg()
procedure TAudioInputProcessor.UpdateInputDeviceConfig;
var
- deviceIndex: integer;
- newDevice: boolean;
+ deviceIndex: integer;
+ newDevice: boolean;
deviceIniIndex: integer;
- deviceCfg: PInputDeviceConfig;
- device: TAudioInputDevice;
- channelCount: integer;
- channelIndex: integer;
- i: integer;
+ deviceCfg: PInputDeviceConfig;
+ device: TAudioInputDevice;
+ channelCount: integer;
+ channelIndex: integer;
+ i: integer;
begin
// Input devices - append detected soundcards
for deviceIndex := 0 to High(DeviceList) do
@@ -608,18 +602,18 @@ end;
* Length - number of bytes in Buffer
* Input - Soundcard-Input used for capture
*}
-procedure TAudioInputProcessor.HandleMicrophoneData(Buffer: PByteArray; Size: Cardinal; InputDevice: TAudioInputDevice);
+procedure TAudioInputProcessor.HandleMicrophoneData(Buffer: PByteArray; Size: cardinal; InputDevice: TAudioInputDevice);
var
- MultiChannelBuffer: PByteArray; // buffer handled as array of bytes (offset relative to channel)
- SingleChannelBuffer: PByteArray; // temporary buffer for new samples per channel
+ MultiChannelBuffer: PByteArray; // buffer handled as array of bytes (offset relative to channel)
+ SingleChannelBuffer: PByteArray; // temporary buffer for new samples per channel
SingleChannelBufferSize: integer;
- ChannelIndex: integer;
- CaptureChannel: TCaptureBuffer;
- AudioFormat: TAudioFormatInfo;
- SampleSize: integer;
- SampleCount: integer;
- SamplesPerChannel: integer;
- i: integer;
+ ChannelIndex: integer;
+ CaptureChannel: TCaptureBuffer;
+ AudioFormat: TAudioFormatInfo;
+ SampleSize: integer;
+ SampleCount: integer;
+ SamplesPerChannel: integer;
+ i: integer;
begin
AudioFormat := InputDevice.AudioFormat;
SampleSize := AudioSampleSize[AudioFormat.Format];
@@ -638,7 +632,7 @@ begin
begin
// set offset according to channel index
MultiChannelBuffer := @Buffer[ChannelIndex * SampleSize];
- // seperate channel-data from interleaved multi-channel (e.g. stereo) data
+ // separate channel-data from interleaved multi-channel (e.g. stereo) data
for i := 0 to SamplesPerChannel-1 do
begin
Move(MultiChannelBuffer[i*AudioFormat.FrameSize],
@@ -652,7 +646,6 @@ begin
FreeMem(SingleChannelBuffer);
end;
-
{ TAudioInputBase }
function TAudioInputBase.FinalizeRecord: boolean;
@@ -670,13 +663,13 @@ end;
*}
procedure TAudioInputBase.CaptureStart;
var
- S: integer;
- DeviceIndex: integer;
+ S: integer;
+ DeviceIndex: integer;
ChannelIndex: integer;
- Device: TAudioInputDevice;
- DeviceCfg: PInputDeviceConfig;
- DeviceUsed: boolean;
- Player: integer;
+ Device: TAudioInputDevice;
+ DeviceCfg: PInputDeviceConfig;
+ DeviceUsed: boolean;
+ Player: integer;
begin
if (Started) then
CaptureStop();
@@ -728,10 +721,10 @@ end;
*}
procedure TAudioInputBase.CaptureStop;
var
- DeviceIndex: integer;
+ DeviceIndex: integer;
ChannelIndex: integer;
- Device: TAudioInputDevice;
- DeviceCfg: PInputDeviceConfig;
+ Device: TAudioInputDevice;
+ DeviceCfg: PInputDeviceConfig;
begin
for DeviceIndex := 0 to High(AudioInputProcessor.DeviceList) do
begin
@@ -758,17 +751,18 @@ var
var
i: integer;
begin
- Result := False;
+ Result := false;
// search devices with same description
- For i := 0 to deviceIndex-1 do
+ for i := 0 to deviceIndex-1 do
begin
if (AudioInputProcessor.DeviceList[i].Name = name) then
begin
- Result := True;
+ Result := true;
Break;
end;
end;
end;
+
begin
count := 1;
result := name;
@@ -783,6 +777,3 @@ begin
end;
end.
-
-
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-20 13:44:00 +0000