Overview
Overlaps data into larger block sizes. The underlying time base is preserved.
Discussion
A rebuffer module converts from a smaller to a larger block size, with overlap. The module can support an artibrary number of channels and also supports any 32-bit data type (integer and floating-point). An internal buffer holds the overlap between samples.
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Time | ||||
0 | Buffer1 | - | - | - |
1 | Buffer2 | Buffer1 | - | - |
2 | Buffer3 | Buffer2 | Buffer1 | - |
3 | Buffer4 | Buffer3 | Buffer2 | Buffer1 |
4 | Buffer5 | Buffer4 | Buffer3 | Buffer2 |
5 | Buffer6 | Buffer5 | Buffer4 | Buffer3 |
Type Definition
| Code Block |
|---|
typedef struct _ModuleRebuffer
{
ModuleInstanceDescriptor instance; // Common Audio Weaver module instance structure
INT32 outBlockSize; // Specifies the size of the output block. Positive values indicate a specific block size, in samples. Negative values specify a multiplicative factor between the input and output block sizes.
INT32 overlap; // Number of samples of overlap between blocks. Set by the prebuild function.
INT32 stateIndex; // Index of the oldest state variable in the array of state variables.
FLOAT32* state; // State variable array.
} ModuleRebufferClass; |
Variables
Properties
Name | Type | Usage | isHidden | Default value | Range | Units |
outBlockSize | int | const | 0 | -2 | -32:100000 | |
overlap | int | const | 1 | 32 | Unrestricted | |
stateIndex | int | state | 1 | 0 | Unrestricted | |
state | float* | state | 1 | [32 x 1] | Unrestricted |
Pins
Input Pins
Name: in
Description: audio input
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Complex support: Real and Complex
Output Pins
Name: out
Description: audio output
Data type: {float, int, fract32}
MATLAB Usage
File Name: rebuffer_module.m
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