BASS.NET API for the Un4seen BASS Audio LibraryEncoderMPC ClassBASS.NET API for the Un4seen BASS Audio Library
Encoder class implementation for MusePack MPC encoding using "mppenc.exe" resp. "mpcenc.exe".
Inheritance Hierarchy

SystemObject
  Un4seen.Bass.MiscBaseEncoder
    Un4seen.Bass.MiscEncoderMPC

Namespace: Un4seen.Bass.Misc
Assembly: Bass.Net (in Bass.Net.dll) Version: 2.4.12.0
Syntax

[SerializableAttribute]
public sealed class EncoderMPC : BaseEncoder

The EncoderMPC type exposes the following members.

Constructors

  NameDescription
Public methodEncoderMPC
Creates an instance of a MPC encoder implementation.
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Properties

  NameDescription
Public propertyChannelBitwidth
This property returns the actual bitwidth of the sample data of the channel (e.g. 8, 16, 32).
(Inherited from BaseEncoder.)
Public propertyChannelHandle
Gets or Sets the channel handle which is used to create the broadcast encoder class.
(Inherited from BaseEncoder.)
Public propertyChannelInfo
Returns the general channel info.
(Inherited from BaseEncoder.)
Public propertyChannelNumChans
This property returns the actual number of channles of the sample data BASS is using with the channel (e.g. 1=mono, 2=stereo, etc.).
(Inherited from BaseEncoder.)
Public propertyChannelSampleRate
This property returns the actual sample rate in Hz of the sample data BASS is using with the channel (e.g. 44100).
(Inherited from BaseEncoder.)
Public propertyDefaultOutputExtension
This return the default extension of an output file for this encoder (".mpc").
(Overrides BaseEncoderDefaultOutputExtension.)
Public propertyEffectiveBitrate
Returns the effective encoder bitrate (in kbps) of the output.
(Overrides BaseEncoderEffectiveBitrate.)
Public propertyEncoderCommandLine
Gets the actual encoder command-line string (using all MPC_xxx properties).
(Overrides BaseEncoderEncoderCommandLine.)
Public propertyEncoderDirectory
Gets or Sets the encoder's base directory.
(Inherited from BaseEncoder.)
Public propertyEncoderExists
This property return , if the file "mppenc.exe" exists in the EncoderDirectory - else is returned.
(Overrides BaseEncoderEncoderExists.)
Public propertyEncoderHandle
Gets or sets the current HENCODE encoder handle.
(Inherited from BaseEncoder.)
Public propertyEncoderType
Gets a value indicating the type of content. Here BASS_CTYPE_STREAM_MPC is always returned.
(Overrides BaseEncoderEncoderType.)
Public propertyForce16Bit
Gets or Sets if a encoding in 16-bit sample data should be forced (default is ).
(Inherited from BaseEncoder.)
Public propertyInputFile
Gets or Sets the input file name to be processed by the encoder (null = STDIN, default).
(Inherited from BaseEncoder.)
Public propertyIsActive
Gets a value indicating if the encoder has been started (see Start(ENCODEPROC, IntPtr, Boolean)) and is active - else will be returned.
(Inherited from BaseEncoder.)
Public propertyIsPaused
Gets a value indicating if the encoder has been paused (see Pause(Boolean)) - else must be returned.
(Inherited from BaseEncoder.)
Public propertyNoLimit
Gets or Sets if encoding should use the CAST_NOLIMIT flag (which is only needed, if the encoder is used for streaming).
(Inherited from BaseEncoder.)
Public propertyOutputFile
Gets or Sets the output file name to be processed by the encoder (null = STDOUT, default).
(Inherited from BaseEncoder.)
Public propertySupportsSTDOUT
MusePack does implement STDOUT, so is always returned.
(Overrides BaseEncoderSupportsSTDOUT.)
Public propertyTAGs
Gets or Sets the TAG_INFO structure associated with the encoder.
(Inherited from BaseEncoder.)
Public propertyUseAsyncQueue
Gets or Sets if encoding should use an async queue (i.e. the BASS_ENCODE_QUEUE flag).
(Inherited from BaseEncoder.)
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Methods

  NameDescription
Public methodDispose
Implement IDisposable.
(Inherited from BaseEncoder.)
Protected methodFinalize
Finalization code.
(Inherited from BaseEncoder.)
Public methodPause
Pauses or resumes an encoder.
(Inherited from BaseEncoder.)
Public methodSettingsString
Returns the string representation of the current encoder settings.
(Overrides BaseEncoderSettingsString.)
Public methodStart
This method starts the actual MPC encoder. After the encoder was started successfully the EncoderHandle returns a valid HENCODE handle.
(Overrides BaseEncoderStart(ENCODEPROC, IntPtr, Boolean).)
Public methodStop
Stops the encoder (if started).
(Inherited from BaseEncoder.)
Public methodStop(Boolean)
Stops the encoder (if started).
(Inherited from BaseEncoder.)
Public methodToString
Returns the name of the Encoder.
(Overrides ObjectToString.)
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Fields

  NameDescription
Public fieldMPC_CustomOptions
The custom parameter string, which should be used, if the MPC_UseCustomOptionsOnly property is set to .
Public fieldMPC_NMT
--nmt: Set NMT value to x dB (default is 6.5).
Public fieldMPC_PNS
--pns: Set PNS value to x dB (default is 0.0).
Public fieldMPC_Preset
Quality preset (use one of the EncoderMPCMPCPreset values, default is "standard").
Public fieldMPC_Quality
--quality: Set Quality to x (default is 5, between 0 and 10).
Public fieldMPC_Scale
--scale: Scale input signal by x (default: 1.00000, no scaling).
Public fieldMPC_TMN
--tmn: Set TMN value to x dB (default is 18.0).
Public fieldMPC_UseCustomOptionsOnly
Use the MPC_CustomOptions parameter string only (default=).
Public fieldMPC_UseVersion7
Use "mppenc.exe" (Stream Version 7)?
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Remarks

This class uses the BASS_CTYPE_STREAM_MPC encoder type.

"mppenc.exe" or "mpcenc.exe" must be downloaded separately (e.g. from www.musepack.net).

Note: "mpcenc.exe" is the default MusePack Stream Version 8 encoder. "mppenc.exe" is the MusePack Stream Version 7 encoder. Use the MPC_UseVersion7 property, if you want to use "mppenc.exe". By default "mpcenc.exe" (Stream Version 8) will be used.

Make sure to set the MPC_xxx flags before retrieving the EncoderCommandLine or calling Start(ENCODEPROC, IntPtr, Boolean).

This implementation uses the automatic DSP system for encoding. Meaning the sending of sample data to the encoder is done automatically when you play the channel (BASS_ChannelPlay(Int32, Boolean)) or call BASS_ChannelGetData(Int32, IntPtr, Int32) (if it's a decoding channel). So there is no need to call BASS_Encode_Write(Int32, IntPtr, Int32) manually!

If you simply want to encode a physical file please also take a look to the EncodeFile(String, String, BaseEncoder, BaseEncoderENCODEFILEPROC, Boolean, Boolean).

This implementation does not use all possible tweaking switches, since they are mostly not recommended ny MusePack and since the default settings are already pretty much optimized. However, if you for what ever reason need to add you swicth, you can make use of the MPC_CustomOptions property.

See Also

Reference