| Description | Hierarchy | Fields | Methods | Properties |
type unaGSMcoder = class(unaObject)
Base class for all objects defined in this unit.
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constructor create(isWav49: bool = false); |
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destructor Destroy(); override; |
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function write(data: pointer; len: int): int; |
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procedure initCoder(); virtual; abstract; |
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procedure onNewData(sender: unaObject; data: pointer; len: int); virtual; |
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procedure processFrames(data: pointer; len: int); virtual; abstract; |
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property frameSizeIn: int read f_frameSizeIn; |
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property frameSizeOut: int read f_frameSizeOut; |
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property gsmOpt[opt:int32]: int32 read getOpt write setOpt; |
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constructor create(isWav49: bool = false); |
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destructor Destroy(); override; |
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function write(data: pointer; len: int): int; |
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Pass new portion of data to encoder/decoder. Output frames will be notified via onNewData() mehtod Returnsnumber of bytes processed in this write | |
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procedure initCoder(); virtual; abstract; |
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There is stuff we must know for sure, like frame sizes. | |
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procedure onNewData(sender: unaObject; data: pointer; len: int); virtual; |
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Override to be notified of new data from coder. | |
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procedure processFrames(data: pointer; len: int); virtual; abstract; |
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Each processing is specific and thus must be overrided. Parameters
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property frameSizeIn: int read f_frameSizeIn; |
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Size of input frame in bytes. For encoder it should be 160*2 = 320 bytes For WAV49 encoder it should be 160*2*2 = 640 bytes // For decoder it should be 33 For WAV49 encoder it should be 65 | |
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property frameSizeOut: int read f_frameSizeOut; |
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Size of output frame in bytes. For encoder it should be 33 For WAV49 encoder it should be 65 // For decoder it should be 160*2 = 320 bytes For WAV49 encoder it should be 160*2*2 = 640 bytes | |
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property gsmOpt[opt:int32]: int32 read getOpt write setOpt; |
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GSM options, see GSM_OPT_XXX for index values | |
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