public ushort nQuality; // Quality Setting, HIGH BYTE should be NOT LOW byte, otherwhise quality=5
// FUTURE USE, SET TO 0, align strucutre to 331 bytes
//[ MarshalAs( UnmanagedType.ByValArray, SizeConst=255-4*4-2 )]
//public byte[] btReserved;//[255-4*sizeof(DWORD) - sizeof( WORD )];
public LHV1(WaveFormat format, uint MpeBitRate)
{
if (format.wFormatTag != (short)WaveFormats.Pcm)
{
throw new ArgumentOutOfRangeException("format", "Only PCM format supported");
}
if (format.wBitsPerSample != 16)
{
throw new ArgumentOutOfRangeException("format", "Only 16 bits samples supported");
}
dwStructVersion = 1;
dwStructSize = (uint)Marshal.SizeOf(typeof (BE_CONFIG));
switch (format.nSamplesPerSec)
{
case 16000:
case 22050:
case 24000:
dwMpegVersion = MPEG2;
break;
case 32000:
case 44100:
case 48000:
dwMpegVersion = MPEG1;
break;
default:
throw new ArgumentOutOfRangeException("format", "Unsupported sample rate");
}
dwSampleRate = (uint)format.nSamplesPerSec; // INPUT FREQUENCY
dwReSampleRate = 0; // DON'T RESAMPLE
switch (format.nChannels)
{
case 1:
nMode = MpegMode.MONO;
break;
case 2:
nMode = MpegMode.STEREO;
break;
default:
throw new ArgumentOutOfRangeException("format", "Invalid number of channels");
}
switch (MpeBitRate)
{
case 32:
case 40:
case 48:
case 56:
case 64:
case 80:
case 96:
case 112:
case 128:
case 160: //Allowed bit rates in MPEG1 and MPEG2
break;
case 192:
case 224:
case 256:
case 320: //Allowed only in MPEG1
if (dwMpegVersion != MPEG1)
{
throw new ArgumentOutOfRangeException("MpsBitRate", "Bit rate not compatible with input format");
}
break;
case 8:
case 16:
case 24:
case 144: //Allowed only in MPEG2
if (dwMpegVersion != MPEG2)
{
throw new ArgumentOutOfRangeException("MpsBitRate", "Bit rate not compatible with input format");
}
break;
default:
throw new ArgumentOutOfRangeException("MpsBitRate", "Unsupported bit rate");
}
dwBitrate = MpeBitRate; // MINIMUM BIT RATE
nPreset = LAME_QUALITY_PRESET.LQP_NORMAL_QUALITY; // QUALITY PRESET SETTING
dwPsyModel = 0; // USE DEFAULT PSYCHOACOUSTIC MODEL
dwEmphasis = 0; // NO EMPHASIS TURNED ON
bOriginal = 1; // SET ORIGINAL FLAG
bWriteVBRHeader = 0;
bNoRes = 0; // No Bit resorvoir
bCopyright = 0;
bCRC = 0;
bEnableVBR = 0;
bPrivate = 0;
bStrictIso = 0;
dwMaxBitrate = 0;
dwVbrAbr_bps = 0;
nQuality = 0;
nVbrMethod = VBRMETHOD.VBR_METHOD_NONE;
nVBRQuality = 0;
}
public ushort nQuality; // Quality Setting, HIGH BYTE should be NOT LOW byte, otherwhise quality=5
// FUTURE USE, SET TO 0, align strucutre to 331 bytes
//[ MarshalAs( UnmanagedType.ByValArray, SizeConst=255-4*4-2 )]
//public byte[] btReserved;//[255-4*sizeof(DWORD) - sizeof( WORD )];
public LHV1(WaveFormat format, uint MpeBitRate)
{
if (format.wFormatTag != (short)WaveFormats.Pcm)
{
throw new ArgumentOutOfRangeException("format", "Only PCM format supported");
}
if (format.wBitsPerSample != 16)
{
throw new ArgumentOutOfRangeException("format", "Only 16 bits samples supported");
}
dwStructVersion = 1;
dwStructSize = (uint)Marshal.SizeOf(typeof(BE_CONFIG));
switch (format.nSamplesPerSec)
{
case 16000:
case 22050:
case 24000:
dwMpegVersion = MPEG2;
break;
case 32000:
case 44100:
case 48000:
dwMpegVersion = MPEG1;
break;
default:
throw new ArgumentOutOfRangeException("format", "Unsupported sample rate");
}
dwSampleRate = (uint)format.nSamplesPerSec; // INPUT FREQUENCY
dwReSampleRate = 0; // DON'T RESAMPLE
switch (format.nChannels)
{
case 1:
nMode = MpegMode.MONO;
break;
case 2:
nMode = MpegMode.STEREO;
break;
default:
throw new ArgumentOutOfRangeException("format", "Invalid number of channels");
}
switch (MpeBitRate)
{
case 32:
case 40:
case 48:
case 56:
case 64:
case 80:
case 96:
case 112:
case 128:
case 160: //Allowed bit rates in MPEG1 and MPEG2
break;
case 192:
case 224:
case 256:
case 320: //Allowed only in MPEG1
if (dwMpegVersion != MPEG1)
{
throw new ArgumentOutOfRangeException("MpsBitRate", "Bit rate not compatible with input format");
}
break;
case 8:
case 16:
case 24:
case 144: //Allowed only in MPEG2
if (dwMpegVersion != MPEG2)
{
throw new ArgumentOutOfRangeException("MpsBitRate", "Bit rate not compatible with input format");
}
break;
default:
throw new ArgumentOutOfRangeException("MpsBitRate", "Unsupported bit rate");
}
dwBitrate = MpeBitRate; // MINIMUM BIT RATE
nPreset = LAME_QUALITY_PRESET.LQP_NORMAL_QUALITY; // QUALITY PRESET SETTING
dwPsyModel = 0; // USE DEFAULT PSYCHOACOUSTIC MODEL
dwEmphasis = 0; // NO EMPHASIS TURNED ON
bOriginal = 1; // SET ORIGINAL FLAG
bWriteVBRHeader = 0;
bNoRes = 0; // No Bit resorvoir
bCopyright = 0;
bCRC = 0;
bEnableVBR = 0;
bPrivate = 0;
bStrictIso = 0;
dwMaxBitrate = 0;
dwVbrAbr_bps = 0;
nQuality = 0;
nVbrMethod = VBRMETHOD.VBR_METHOD_NONE;
nVBRQuality = 0;
}
private static extern int lame_set_mode(IntPtr context, MpegMode value);
public LHV1(WaveFormat waveFormat_0, uint uint_0, uint uint_1)
{
if (waveFormat_0.waveFormatTag_0 != WaveFormatTag.PCM)
{
throw new ArgumentOutOfRangeException("format", "Only PCM format supported");
}
if (waveFormat_0.short_2 != 16)
{
throw new ArgumentOutOfRangeException("format", "Only 16 bits samples supported");
}
this.dwStructVersion = 1u;
this.dwStructSize = (uint)Marshal.SizeOf(typeof(BE_CONFIG));
uint num = (uint)((uint_1 == 0u) ? waveFormat_0.int_0 : ((int)uint_1));
if (num <= 24000u)
{
if (num == 16000u || num == 22050u || num == 24000u)
{
this.dwMpegVersion = 0u;
goto IL_B6;
}
}
else if (num == 32000u || num == 44100u || num == 48000u)
{
this.dwMpegVersion = 1u;
goto IL_B6;
}
throw new ArgumentOutOfRangeException("format", "Unsupported sample rate");
IL_B6:
this.dwSampleRate = (uint)waveFormat_0.int_0;
this.dwReSampleRate = uint_1;
switch (waveFormat_0.short_0)
{
case 1:
this.nMode = MpegMode.Mono;
break;
case 2:
this.nMode = MpegMode.Stereo;
break;
default:
throw new ArgumentOutOfRangeException("format", "Invalid number of channels");
}
if (uint_0 <= 80u)
{
if (uint_0 <= 32u)
{
if (uint_0 <= 16u)
{
if (uint_0 != 8u && uint_0 != 16u)
{
goto IL_1E5;
}
}
else if (uint_0 != 24u)
{
if (uint_0 != 32u)
{
goto IL_1E5;
}
goto IL_20E;
}
}
else if (uint_0 <= 48u)
{
if (uint_0 != 40u && uint_0 != 48u)
{
goto IL_1E5;
}
goto IL_20E;
}
else
{
if (uint_0 != 56u && uint_0 != 64u && uint_0 != 80u)
{
goto IL_1E5;
}
goto IL_20E;
}
}
else if (uint_0 <= 144u)
{
if (uint_0 <= 112u)
{
if (uint_0 != 96u && uint_0 != 112u)
{
goto IL_1E5;
}
goto IL_20E;
}
else
{
if (uint_0 == 128u)
{
goto IL_20E;
}
if (uint_0 != 144u)
{
goto IL_1E5;
}
}
}
else
{
if (uint_0 <= 192u)
{
if (uint_0 == 160u)
{
goto IL_20E;
}
if (uint_0 != 192u)
{
goto IL_1E5;
}
}
else if (uint_0 != 224u && uint_0 != 256u)
{
if (uint_0 != 320u)
{
goto IL_1E5;
}
}
if (this.dwMpegVersion != 1u)
{
throw new ArgumentOutOfRangeException("MpsBitRate", "Bit rate not compatible with input format");
}
goto IL_20E;
}
if (this.dwMpegVersion != 0u)
{
throw new ArgumentOutOfRangeException("MpsBitRate", "Bit rate not compatible with input format");
}
goto IL_20E;
IL_1E5:
throw new ArgumentOutOfRangeException("MpsBitRate", "Unsupported bit rate");
IL_20E:
this.dwBitrate = uint_0;
this.nPreset = LameQualityPreset.LqpNormalQuality;
this.dwPsyModel = 0u;
this.dwEmphasis = 0u;
this.bOriginal = 1;
this.bWriteVBRHeader = 0;
this.bNoRes = 0;
this.bCopyright = 0;
this.bCRC = 0;
this.bEnableVBR = 0;
this.bPrivate = 0;
this.bStrictIso = 0;
this.dwMaxBitrate = 0u;
this.dwVbrAbr_bps = 0u;
this.nQuality = 0;
this.nVbrMethod = VbrMethod.None;
this.nVBRQuality = 0;
}
public LHV1(WaveFormat waveFormat_0, uint uint_0, uint uint_1)
{
if (waveFormat_0.waveFormatTag_0 != WaveFormatTag.PCM)
{
throw new ArgumentOutOfRangeException("format", "Only PCM format supported");
}
if (waveFormat_0.short_2 != 16)
{
throw new ArgumentOutOfRangeException("format", "Only 16 bits samples supported");
}
this.dwStructVersion = 1u;
this.dwStructSize = (uint)Marshal.SizeOf(typeof(BE_CONFIG));
uint num = (uint)((uint_1 == 0u) ? waveFormat_0.int_0 : ((int)uint_1));
if (num <= 24000u)
{
if (num == 16000u || num == 22050u || num == 24000u)
{
this.dwMpegVersion = 0u;
goto IL_B6;
}
}
else if (num == 32000u || num == 44100u || num == 48000u)
{
this.dwMpegVersion = 1u;
goto IL_B6;
}
throw new ArgumentOutOfRangeException("format", "Unsupported sample rate");
IL_B6:
this.dwSampleRate = (uint)waveFormat_0.int_0;
this.dwReSampleRate = uint_1;
switch (waveFormat_0.short_0)
{
case 1:
this.nMode = MpegMode.Mono;
break;
case 2:
this.nMode = MpegMode.Stereo;
break;
default:
throw new ArgumentOutOfRangeException("format", "Invalid number of channels");
}
if (uint_0 <= 80u)
{
if (uint_0 <= 32u)
{
if (uint_0 <= 16u)
{
if (uint_0 != 8u && uint_0 != 16u)
{
goto IL_1E5;
}
}
else if (uint_0 != 24u)
{
if (uint_0 != 32u)
{
goto IL_1E5;
}
goto IL_20E;
}
}
else if (uint_0 <= 48u)
{
if (uint_0 != 40u && uint_0 != 48u)
{
goto IL_1E5;
}
goto IL_20E;
}
else
{
if (uint_0 != 56u && uint_0 != 64u && uint_0 != 80u)
{
goto IL_1E5;
}
goto IL_20E;
}
}
else if (uint_0 <= 144u)
{
if (uint_0 <= 112u)
{
if (uint_0 != 96u && uint_0 != 112u)
{
goto IL_1E5;
}
goto IL_20E;
}
else
{
if (uint_0 == 128u)
{
goto IL_20E;
}
if (uint_0 != 144u)
{
goto IL_1E5;
}
}
}
else
{
if (uint_0 <= 192u)
{
if (uint_0 == 160u)
{
goto IL_20E;
}
if (uint_0 != 192u)
{
goto IL_1E5;
}
}
else if (uint_0 != 224u && uint_0 != 256u)
{
if (uint_0 != 320u)
{
goto IL_1E5;
}
}
if (this.dwMpegVersion != 1u)
{
throw new ArgumentOutOfRangeException("MpsBitRate", "Bit rate not compatible with input format");
}
goto IL_20E;
}
if (this.dwMpegVersion != 0u)
{
throw new ArgumentOutOfRangeException("MpsBitRate", "Bit rate not compatible with input format");
}
goto IL_20E;
IL_1E5:
throw new ArgumentOutOfRangeException("MpsBitRate", "Unsupported bit rate");
IL_20E:
this.dwBitrate = uint_0;
this.nPreset = LameQualityPreset.LqpNormalQuality;
this.dwPsyModel = 0u;
this.dwEmphasis = 0u;
this.bOriginal = 1;
this.bWriteVBRHeader = 0;
this.bNoRes = 0;
this.bCopyright = 0;
this.bCRC = 0;
this.bEnableVBR = 0;
this.bPrivate = 0;
this.bStrictIso = 0;
this.dwMaxBitrate = 0u;
this.dwVbrAbr_bps = 0u;
this.nQuality = 0;
this.nVbrMethod = VbrMethod.None;
this.nVBRQuality = 0;
}
private static extern int lame_set_mode(IntPtr context, MpegMode value);
