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Class unaSpeexCoder

Fields

Unit

Declaration

type unaSpeexCoder = class(unaObject)

Description

Base class fro Speex encoder and decoder.

Hierarchy

TObject
unaObject
unaSpeexCoder

Overview

Methods

	`constructor create(lib: unaSpeexLib; mode: int = SPEEX_MODEID_NB);`
	`function open(): bool;`
	`function doGetFrameSize(): int; virtual; abstract;`
	`function doGetSamplingRate(): int; virtual; abstract;`
	`function doInit(): pointer; virtual; abstract;`
	`function enter(timeout: tTimeout = 3000): bool;`
	`procedure BeforeDestruction(); override;`
	`procedure close();`
	`procedure afterOpen(); virtual;`
	`procedure beforeClose(); virtual;`
	`procedure doClose(); virtual; abstract;`
	`procedure doOpen(); virtual; abstract;`
	`procedure leave();`

Properties

	`property active: bool read getActive write setActive;`
	`property bits: pSpeexBits read getBits;`
	`property frameSize: int read getFrameSize;`
	`property lib: unaSpeexLib read f_lib;`
	`property mode: int read f_mode write setMode;`
	`property modeInfo: pSpeexMode read getModeInfo;`
	`property PLC_TUNING: int32 index SPEEX_SET_PLC_TUNING read getIntValue write setIntValue;`
	`property samplingRate: int read getSamplingRate;`
	`property state: pointer read f_state;`

Description

Methods

	`constructor create(lib: unaSpeexLib; mode: int = SPEEX_MODEID_NB);`
Mode could be SPEEX_MODEID_NB, SPEEX_MODEID_WB or SPEEX_MODEID_UWB.

function open(): bool;

Initializes processor.

Return True if encoder was initialized normally (or already was activated).

	`function doGetFrameSize(): int; virtual; abstract;`

	`function doGetSamplingRate(): int; virtual; abstract;`

	`function doInit(): pointer; virtual; abstract;`

	`function enter(timeout: tTimeout = 3000): bool;`

	`procedure BeforeDestruction(); override;`

	`procedure close();`
Releases resources used by processor.

	`procedure afterOpen(); virtual;`

	`procedure beforeClose(); virtual;`

	`procedure doClose(); virtual; abstract;`

	`procedure doOpen(); virtual; abstract;`

	`procedure leave();`

Properties

	`property active: bool read getActive write setActive;`
True when initialized.

	`property bits: pSpeexBits read getBits;`
Internal structure for bitstream.

	`property frameSize: int read getFrameSize;`
Size of frame in samples.

	`property lib: unaSpeexLib read f_lib;`

	`property mode: int read f_mode write setMode;`
Mode could be SPEEX_MODEID_NB, SPEEX_MODEID_WB or SPEEX_MODEID_UWB.

	`property modeInfo: pSpeexMode read getModeInfo;`

	`property PLC_TUNING: int32 index SPEEX_SET_PLC_TUNING read getIntValue write setIntValue;`

	`property samplingRate: int read getSamplingRate;`
Sampling rate expected by encoder.

	`property state: pointer read f_state;`

(c) 2012 Lake of Soft

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