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https://github.com/cookiengineer/audacity
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Introduce end-of-line normalization
Ensures that all files that Git considers to be text will have normalized (LF) line endings in the repository. When core.eol is set to native (which is the default), Git will convert the line endings of normalized files in your working directory back to your platform's native line ending. See also https://git-scm.com/docs/gitattributes
This commit is contained in:
Benjamin Drung
@@ -1,122 +1,122 @@
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#include <math.h>
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#include <string.h>
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#include "biquad_filter.h"
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/**
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* Unit_BiquadFilter implements a second order IIR filter.
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Here is the equation that we use for this filter:
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y(n) = a0*x(n) + a1*x(n-1) + a2*x(n-2) - b1*y(n-1) - b2*y(n-2)
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*
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* @author (C) 2002 Phil Burk, SoftSynth.com, All Rights Reserved
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*/
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#define FILTER_PI (3.141592653589793238462643)
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/***********************************************************
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** Calculate coefficients common to many parametric biquad filters.
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*/
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static void BiquadFilter_CalculateCommon( BiquadFilter *filter, double ratio, double Q )
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{
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double omega;
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memset( filter, 0, sizeof(BiquadFilter) );
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/* Don't let frequency get too close to Nyquist or filter will blow up. */
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if( ratio >= 0.499 ) ratio = 0.499;
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omega = 2.0 * (double)FILTER_PI * ratio;
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filter->cos_omega = (double) cos( omega );
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filter->sin_omega = (double) sin( omega );
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filter->alpha = filter->sin_omega / (2.0 * Q);
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}
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/*********************************************************************************
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** Calculate coefficients for Highpass filter.
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*/
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void BiquadFilter_SetupHighPass( BiquadFilter *filter, double ratio, double Q )
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{
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double scalar, opc;
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if( ratio < BIQUAD_MIN_RATIO ) ratio = BIQUAD_MIN_RATIO;
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if( Q < BIQUAD_MIN_Q ) Q = BIQUAD_MIN_Q;
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BiquadFilter_CalculateCommon( filter, ratio, Q );
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scalar = 1.0 / (1.0 + filter->alpha);
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opc = (1.0 + filter->cos_omega);
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filter->a0 = opc * 0.5 * scalar;
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filter->a1 = - opc * scalar;
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filter->a2 = filter->a0;
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filter->b1 = -2.0 * filter->cos_omega * scalar;
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filter->b2 = (1.0 - filter->alpha) * scalar;
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}
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/*********************************************************************************
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** Calculate coefficients for Notch filter.
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*/
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void BiquadFilter_SetupNotch( BiquadFilter *filter, double ratio, double Q )
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{
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double scalar, opc;
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if( ratio < BIQUAD_MIN_RATIO ) ratio = BIQUAD_MIN_RATIO;
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if( Q < BIQUAD_MIN_Q ) Q = BIQUAD_MIN_Q;
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BiquadFilter_CalculateCommon( filter, ratio, Q );
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scalar = 1.0 / (1.0 + filter->alpha);
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opc = (1.0 + filter->cos_omega);
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filter->a0 = scalar;
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filter->a1 = -2.0 * filter->cos_omega * scalar;
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filter->a2 = filter->a0;
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filter->b1 = filter->a1;
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filter->b2 = (1.0 - filter->alpha) * scalar;
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}
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/*****************************************************************
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** Perform core IIR filter calculation without permutation.
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*/
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void BiquadFilter_Filter( BiquadFilter *filter, float *inputs, float *outputs, int numSamples )
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{
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int i;
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double xn, yn;
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// Pull values from structure to speed up the calculation.
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double a0 = filter->a0;
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double a1 = filter->a1;
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double a2 = filter->a2;
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double b1 = filter->b1;
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double b2 = filter->b2;
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double xn1 = filter->xn1;
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double xn2 = filter->xn2;
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double yn1 = filter->yn1;
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double yn2 = filter->yn2;
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for( i=0; i<numSamples; i++)
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{
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// Generate outputs by filtering inputs.
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xn = inputs[i];
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yn = (a0 * xn) + (a1 * xn1) + (a2 * xn2) - (b1 * yn1) - (b2 * yn2);
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outputs[i] = yn;
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// Delay input and output values.
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xn2 = xn1;
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xn1 = xn;
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yn2 = yn1;
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yn1 = yn;
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if( (i & 7) == 0 )
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{
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// Apply a small bipolar impulse to filter to prevent arithmetic underflow.
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// Underflows can cause the FPU to interrupt the CPU.
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yn1 += (double) 1.0E-26;
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yn2 -= (double) 1.0E-26;
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}
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}
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filter->xn1 = xn1;
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filter->xn2 = xn2;
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filter->yn1 = yn1;
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filter->yn2 = yn2;
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#include <math.h>
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#include <string.h>
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#include "biquad_filter.h"
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/**
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* Unit_BiquadFilter implements a second order IIR filter.
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Here is the equation that we use for this filter:
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y(n) = a0*x(n) + a1*x(n-1) + a2*x(n-2) - b1*y(n-1) - b2*y(n-2)
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*
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* @author (C) 2002 Phil Burk, SoftSynth.com, All Rights Reserved
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*/
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#define FILTER_PI (3.141592653589793238462643)
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/***********************************************************
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** Calculate coefficients common to many parametric biquad filters.
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*/
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static void BiquadFilter_CalculateCommon( BiquadFilter *filter, double ratio, double Q )
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{
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double omega;
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memset( filter, 0, sizeof(BiquadFilter) );
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/* Don't let frequency get too close to Nyquist or filter will blow up. */
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if( ratio >= 0.499 ) ratio = 0.499;
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omega = 2.0 * (double)FILTER_PI * ratio;
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filter->cos_omega = (double) cos( omega );
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filter->sin_omega = (double) sin( omega );
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filter->alpha = filter->sin_omega / (2.0 * Q);
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}
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/*********************************************************************************
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** Calculate coefficients for Highpass filter.
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*/
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void BiquadFilter_SetupHighPass( BiquadFilter *filter, double ratio, double Q )
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{
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double scalar, opc;
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if( ratio < BIQUAD_MIN_RATIO ) ratio = BIQUAD_MIN_RATIO;
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if( Q < BIQUAD_MIN_Q ) Q = BIQUAD_MIN_Q;
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BiquadFilter_CalculateCommon( filter, ratio, Q );
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scalar = 1.0 / (1.0 + filter->alpha);
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opc = (1.0 + filter->cos_omega);
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filter->a0 = opc * 0.5 * scalar;
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filter->a1 = - opc * scalar;
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filter->a2 = filter->a0;
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filter->b1 = -2.0 * filter->cos_omega * scalar;
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filter->b2 = (1.0 - filter->alpha) * scalar;
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}
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/*********************************************************************************
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** Calculate coefficients for Notch filter.
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*/
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void BiquadFilter_SetupNotch( BiquadFilter *filter, double ratio, double Q )
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{
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double scalar, opc;
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if( ratio < BIQUAD_MIN_RATIO ) ratio = BIQUAD_MIN_RATIO;
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if( Q < BIQUAD_MIN_Q ) Q = BIQUAD_MIN_Q;
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BiquadFilter_CalculateCommon( filter, ratio, Q );
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scalar = 1.0 / (1.0 + filter->alpha);
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opc = (1.0 + filter->cos_omega);
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filter->a0 = scalar;
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filter->a1 = -2.0 * filter->cos_omega * scalar;
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filter->a2 = filter->a0;
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filter->b1 = filter->a1;
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filter->b2 = (1.0 - filter->alpha) * scalar;
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}
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/*****************************************************************
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** Perform core IIR filter calculation without permutation.
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*/
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void BiquadFilter_Filter( BiquadFilter *filter, float *inputs, float *outputs, int numSamples )
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{
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int i;
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double xn, yn;
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// Pull values from structure to speed up the calculation.
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double a0 = filter->a0;
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double a1 = filter->a1;
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double a2 = filter->a2;
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double b1 = filter->b1;
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double b2 = filter->b2;
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double xn1 = filter->xn1;
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double xn2 = filter->xn2;
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double yn1 = filter->yn1;
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double yn2 = filter->yn2;
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for( i=0; i<numSamples; i++)
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{
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// Generate outputs by filtering inputs.
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xn = inputs[i];
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yn = (a0 * xn) + (a1 * xn1) + (a2 * xn2) - (b1 * yn1) - (b2 * yn2);
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outputs[i] = yn;
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// Delay input and output values.
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xn2 = xn1;
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xn1 = xn;
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yn2 = yn1;
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yn1 = yn;
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if( (i & 7) == 0 )
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{
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// Apply a small bipolar impulse to filter to prevent arithmetic underflow.
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// Underflows can cause the FPU to interrupt the CPU.
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yn1 += (double) 1.0E-26;
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yn2 -= (double) 1.0E-26;
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}
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}
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filter->xn1 = xn1;
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filter->xn2 = xn2;
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filter->yn1 = yn1;
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filter->yn2 = yn2;
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}
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@@ -1,38 +1,38 @@
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#ifndef _BIQUADFILTER_H
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#define _BIQUADFILTER_H
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/**
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* Unit_BiquadFilter implements a second order IIR filter.
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*
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* @author (C) 2002 Phil Burk, SoftSynth.com, All Rights Reserved
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*/
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#define BIQUAD_MIN_RATIO (0.000001)
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#define BIQUAD_MIN_Q (0.00001)
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typedef struct BiquadFilter_s
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{
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double xn1; // storage for delayed signals
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double xn2;
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double yn1;
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double yn2;
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double a0; // coefficients
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double a1;
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double a2;
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double b1;
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double b2;
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double cos_omega;
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double sin_omega;
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double alpha;
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} BiquadFilter;
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void BiquadFilter_SetupHighPass( BiquadFilter *filter, double ratio, double Q );
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void BiquadFilter_SetupNotch( BiquadFilter *filter, double ratio, double Q );
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void BiquadFilter_Filter( BiquadFilter *filter, float *inputs, float *outputs, int numSamples );
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#endif
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#ifndef _BIQUADFILTER_H
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#define _BIQUADFILTER_H
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/**
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* Unit_BiquadFilter implements a second order IIR filter.
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*
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* @author (C) 2002 Phil Burk, SoftSynth.com, All Rights Reserved
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*/
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#define BIQUAD_MIN_RATIO (0.000001)
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#define BIQUAD_MIN_Q (0.00001)
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typedef struct BiquadFilter_s
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{
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double xn1; // storage for delayed signals
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double xn2;
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double yn1;
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double yn2;
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double a0; // coefficients
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double a1;
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double a2;
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double b1;
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double b2;
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double cos_omega;
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double sin_omega;
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||||
double alpha;
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} BiquadFilter;
|
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|
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void BiquadFilter_SetupHighPass( BiquadFilter *filter, double ratio, double Q );
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void BiquadFilter_SetupNotch( BiquadFilter *filter, double ratio, double Q );
|
||||
|
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void BiquadFilter_Filter( BiquadFilter *filter, float *inputs, float *outputs, int numSamples );
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#endif
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||||
@@ -1,74 +1,74 @@
|
||||
|
||||
/*
|
||||
* PortAudio Portable Real-Time Audio Library
|
||||
* Latest Version at: http://www.portaudio.com
|
||||
*
|
||||
* Copyright (c) 1999-2010 Phil Burk and Ross Bencina
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files
|
||||
* (the "Software"), to deal in the Software without restriction,
|
||||
* including without limitation the rights to use, copy, modify, merge,
|
||||
* publish, distribute, sublicense, and/or sell copies of the Software,
|
||||
* and to permit persons to whom the Software is furnished to do so,
|
||||
* subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be
|
||||
* included in all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||||
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
|
||||
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
|
||||
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* The text above constitutes the entire PortAudio license; however,
|
||||
* the PortAudio community also makes the following non-binding requests:
|
||||
*
|
||||
* Any person wishing to distribute modifications to the Software is
|
||||
* requested to send the modifications to the original developer so that
|
||||
* they can be incorporated into the canonical version. It is also
|
||||
* requested that these non-binding requests be included along with the
|
||||
* license above.
|
||||
*/
|
||||
|
||||
#ifndef _QA_TOOLS_H
|
||||
#define _QA_TOOLS_H
|
||||
|
||||
extern int g_testsPassed;
|
||||
extern int g_testsFailed;
|
||||
|
||||
#define QA_ASSERT_TRUE( message, flag ) \
|
||||
if( !(flag) ) \
|
||||
{ \
|
||||
printf( "%s:%d - ERROR - %s\n", __FILE__, __LINE__, message ); \
|
||||
g_testsFailed++; \
|
||||
goto error; \
|
||||
} \
|
||||
else g_testsPassed++;
|
||||
|
||||
|
||||
#define QA_ASSERT_EQUALS( message, expected, actual ) \
|
||||
if( ((expected) != (actual)) ) \
|
||||
{ \
|
||||
printf( "%s:%d - ERROR - %s, expected %d, got %d\n", __FILE__, __LINE__, message, expected, actual ); \
|
||||
g_testsFailed++; \
|
||||
goto error; \
|
||||
} \
|
||||
else g_testsPassed++;
|
||||
|
||||
#define QA_ASSERT_CLOSE( message, expected, actual, tolerance ) \
|
||||
if (fabs((expected)-(actual))>(tolerance)) \
|
||||
{ \
|
||||
printf( "%s:%d - ERROR - %s, expected %f, got %f, tol=%f\n", __FILE__, __LINE__, message, ((double)(expected)), ((double)(actual)), ((double)(tolerance)) ); \
|
||||
g_testsFailed++; \
|
||||
goto error; \
|
||||
} \
|
||||
else g_testsPassed++;
|
||||
|
||||
|
||||
#endif
|
||||
|
||||
/*
|
||||
* PortAudio Portable Real-Time Audio Library
|
||||
* Latest Version at: http://www.portaudio.com
|
||||
*
|
||||
* Copyright (c) 1999-2010 Phil Burk and Ross Bencina
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files
|
||||
* (the "Software"), to deal in the Software without restriction,
|
||||
* including without limitation the rights to use, copy, modify, merge,
|
||||
* publish, distribute, sublicense, and/or sell copies of the Software,
|
||||
* and to permit persons to whom the Software is furnished to do so,
|
||||
* subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be
|
||||
* included in all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||||
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
|
||||
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
|
||||
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* The text above constitutes the entire PortAudio license; however,
|
||||
* the PortAudio community also makes the following non-binding requests:
|
||||
*
|
||||
* Any person wishing to distribute modifications to the Software is
|
||||
* requested to send the modifications to the original developer so that
|
||||
* they can be incorporated into the canonical version. It is also
|
||||
* requested that these non-binding requests be included along with the
|
||||
* license above.
|
||||
*/
|
||||
|
||||
#ifndef _QA_TOOLS_H
|
||||
#define _QA_TOOLS_H
|
||||
|
||||
extern int g_testsPassed;
|
||||
extern int g_testsFailed;
|
||||
|
||||
#define QA_ASSERT_TRUE( message, flag ) \
|
||||
if( !(flag) ) \
|
||||
{ \
|
||||
printf( "%s:%d - ERROR - %s\n", __FILE__, __LINE__, message ); \
|
||||
g_testsFailed++; \
|
||||
goto error; \
|
||||
} \
|
||||
else g_testsPassed++;
|
||||
|
||||
|
||||
#define QA_ASSERT_EQUALS( message, expected, actual ) \
|
||||
if( ((expected) != (actual)) ) \
|
||||
{ \
|
||||
printf( "%s:%d - ERROR - %s, expected %d, got %d\n", __FILE__, __LINE__, message, expected, actual ); \
|
||||
g_testsFailed++; \
|
||||
goto error; \
|
||||
} \
|
||||
else g_testsPassed++;
|
||||
|
||||
#define QA_ASSERT_CLOSE( message, expected, actual, tolerance ) \
|
||||
if (fabs((expected)-(actual))>(tolerance)) \
|
||||
{ \
|
||||
printf( "%s:%d - ERROR - %s, expected %f, got %f, tol=%f\n", __FILE__, __LINE__, message, ((double)(expected)), ((double)(actual)), ((double)(tolerance)) ); \
|
||||
g_testsFailed++; \
|
||||
goto error; \
|
||||
} \
|
||||
else g_testsPassed++;
|
||||
|
||||
|
||||
#endif
|
||||
|
||||
@@ -1,242 +1,242 @@
|
||||
/*
|
||||
* PortAudio Portable Real-Time Audio Library
|
||||
* Latest Version at: http://www.portaudio.com
|
||||
*
|
||||
* Copyright (c) 1999-2010 Phil Burk and Ross Bencina
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files
|
||||
* (the "Software"), to deal in the Software without restriction,
|
||||
* including without limitation the rights to use, copy, modify, merge,
|
||||
* publish, distribute, sublicense, and/or sell copies of the Software,
|
||||
* and to permit persons to whom the Software is furnished to do so,
|
||||
* subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be
|
||||
* included in all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||||
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
|
||||
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
|
||||
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* The text above constitutes the entire PortAudio license; however,
|
||||
* the PortAudio community also makes the following non-binding requests:
|
||||
*
|
||||
* Any person wishing to distribute modifications to the Software is
|
||||
* requested to send the modifications to the original developer so that
|
||||
* they can be incorporated into the canonical version. It is also
|
||||
* requested that these non-binding requests be included along with the
|
||||
* license above.
|
||||
*/
|
||||
|
||||
/**
|
||||
* Very simple WAV file writer for saving captured audio.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include "write_wav.h"
|
||||
|
||||
|
||||
/* Write long word data to a little endian format byte array. */
|
||||
static void WriteLongLE( unsigned char **addrPtr, unsigned long data )
|
||||
{
|
||||
unsigned char *addr = *addrPtr;
|
||||
*addr++ = (unsigned char) data;
|
||||
*addr++ = (unsigned char) (data>>8);
|
||||
*addr++ = (unsigned char) (data>>16);
|
||||
*addr++ = (unsigned char) (data>>24);
|
||||
*addrPtr = addr;
|
||||
}
|
||||
|
||||
/* Write short word data to a little endian format byte array. */
|
||||
static void WriteShortLE( unsigned char **addrPtr, unsigned short data )
|
||||
{
|
||||
unsigned char *addr = *addrPtr;
|
||||
*addr++ = (unsigned char) data;
|
||||
*addr++ = (unsigned char) (data>>8);
|
||||
*addrPtr = addr;
|
||||
}
|
||||
|
||||
/* Write IFF ChunkType data to a byte array. */
|
||||
static void WriteChunkType( unsigned char **addrPtr, unsigned long cktyp )
|
||||
{
|
||||
unsigned char *addr = *addrPtr;
|
||||
*addr++ = (unsigned char) (cktyp>>24);
|
||||
*addr++ = (unsigned char) (cktyp>>16);
|
||||
*addr++ = (unsigned char) (cktyp>>8);
|
||||
*addr++ = (unsigned char) cktyp;
|
||||
*addrPtr = addr;
|
||||
}
|
||||
|
||||
#define WAV_HEADER_SIZE (4 + 4 + 4 + /* RIFF+size+WAVE */ \
|
||||
4 + 4 + 16 + /* fmt chunk */ \
|
||||
4 + 4 ) /* data chunk */
|
||||
|
||||
|
||||
/*********************************************************************************
|
||||
* Open named file and write WAV header to the file.
|
||||
* The header includes the DATA chunk type and size.
|
||||
* Returns number of bytes written to file or negative error code.
|
||||
*/
|
||||
long Audio_WAV_OpenWriter( WAV_Writer *writer, const char *fileName, int frameRate, int samplesPerFrame )
|
||||
{
|
||||
unsigned int bytesPerSecond;
|
||||
unsigned char header[ WAV_HEADER_SIZE ];
|
||||
unsigned char *addr = header;
|
||||
int numWritten;
|
||||
|
||||
writer->dataSize = 0;
|
||||
writer->dataSizeOffset = 0;
|
||||
|
||||
writer->fid = fopen( fileName, "wb" );
|
||||
if( writer->fid == NULL )
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* Write RIFF header. */
|
||||
WriteChunkType( &addr, RIFF_ID );
|
||||
|
||||
/* Write RIFF size as zero for now. Will patch later. */
|
||||
WriteLongLE( &addr, 0 );
|
||||
|
||||
/* Write WAVE form ID. */
|
||||
WriteChunkType( &addr, WAVE_ID );
|
||||
|
||||
/* Write format chunk based on AudioSample structure. */
|
||||
WriteChunkType( &addr, FMT_ID );
|
||||
WriteLongLE( &addr, 16 );
|
||||
WriteShortLE( &addr, WAVE_FORMAT_PCM );
|
||||
bytesPerSecond = frameRate * samplesPerFrame * sizeof( short);
|
||||
WriteShortLE( &addr, (short) samplesPerFrame );
|
||||
WriteLongLE( &addr, frameRate );
|
||||
WriteLongLE( &addr, bytesPerSecond );
|
||||
WriteShortLE( &addr, (short) (samplesPerFrame * sizeof( short)) ); /* bytesPerBlock */
|
||||
WriteShortLE( &addr, (short) 16 ); /* bits per sample */
|
||||
|
||||
/* Write ID and size for 'data' chunk. */
|
||||
WriteChunkType( &addr, DATA_ID );
|
||||
/* Save offset so we can patch it later. */
|
||||
writer->dataSizeOffset = (int) (addr - header);
|
||||
WriteLongLE( &addr, 0 );
|
||||
|
||||
numWritten = fwrite( header, 1, sizeof(header), writer->fid );
|
||||
if( numWritten != sizeof(header) ) return -1;
|
||||
|
||||
return (int) numWritten;
|
||||
}
|
||||
|
||||
/*********************************************************************************
|
||||
* Write to the data chunk portion of a WAV file.
|
||||
* Returns bytes written or negative error code.
|
||||
*/
|
||||
long Audio_WAV_WriteShorts( WAV_Writer *writer,
|
||||
short *samples,
|
||||
int numSamples
|
||||
)
|
||||
{
|
||||
unsigned char buffer[2];
|
||||
unsigned char *bufferPtr;
|
||||
int i;
|
||||
short *p = samples;
|
||||
int numWritten;
|
||||
int bytesWritten;
|
||||
if( numSamples <= 0 )
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
for( i=0; i<numSamples; i++ )
|
||||
{
|
||||
bufferPtr = buffer;
|
||||
WriteShortLE( &bufferPtr, *p++ );
|
||||
numWritten = fwrite( buffer, 1, sizeof( buffer), writer->fid );
|
||||
if( numWritten != sizeof(buffer) ) return -1;
|
||||
}
|
||||
bytesWritten = numSamples * sizeof(short);
|
||||
writer->dataSize += bytesWritten;
|
||||
return (int) bytesWritten;
|
||||
}
|
||||
|
||||
/*********************************************************************************
|
||||
* Close WAV file.
|
||||
* Update chunk sizes so it can be read by audio applications.
|
||||
*/
|
||||
long Audio_WAV_CloseWriter( WAV_Writer *writer )
|
||||
{
|
||||
unsigned char buffer[4];
|
||||
unsigned char *bufferPtr;
|
||||
int numWritten;
|
||||
int riffSize;
|
||||
|
||||
/* Go back to beginning of file and update DATA size */
|
||||
int result = fseek( writer->fid, writer->dataSizeOffset, SEEK_SET );
|
||||
if( result < 0 ) return result;
|
||||
|
||||
bufferPtr = buffer;
|
||||
WriteLongLE( &bufferPtr, writer->dataSize );
|
||||
numWritten = fwrite( buffer, 1, sizeof( buffer), writer->fid );
|
||||
if( numWritten != sizeof(buffer) ) return -1;
|
||||
|
||||
/* Update RIFF size */
|
||||
result = fseek( writer->fid, 4, SEEK_SET );
|
||||
if( result < 0 ) return result;
|
||||
|
||||
riffSize = writer->dataSize + (WAV_HEADER_SIZE - 8);
|
||||
bufferPtr = buffer;
|
||||
WriteLongLE( &bufferPtr, riffSize );
|
||||
numWritten = fwrite( buffer, 1, sizeof( buffer), writer->fid );
|
||||
if( numWritten != sizeof(buffer) ) return -1;
|
||||
|
||||
fclose( writer->fid );
|
||||
writer->fid = NULL;
|
||||
return writer->dataSize;
|
||||
}
|
||||
|
||||
/*********************************************************************************
|
||||
* Simple test that write a sawtooth waveform to a file.
|
||||
*/
|
||||
#if 0
|
||||
int main( void )
|
||||
{
|
||||
int i;
|
||||
WAV_Writer writer;
|
||||
int result;
|
||||
#define NUM_SAMPLES (200)
|
||||
short data[NUM_SAMPLES];
|
||||
short saw = 0;
|
||||
|
||||
for( i=0; i<NUM_SAMPLES; i++ )
|
||||
{
|
||||
data[i] = saw;
|
||||
saw += 293;
|
||||
}
|
||||
|
||||
|
||||
result = Audio_WAV_OpenWriter( &writer, "rendered_midi.wav", 44100, 1 );
|
||||
if( result < 0 ) goto error;
|
||||
|
||||
for( i=0; i<15; i++ )
|
||||
{
|
||||
result = Audio_WAV_WriteShorts( &writer, data, NUM_SAMPLES );
|
||||
if( result < 0 ) goto error;
|
||||
}
|
||||
|
||||
result = Audio_WAV_CloseWriter( &writer );
|
||||
if( result < 0 ) goto error;
|
||||
|
||||
|
||||
return 0;
|
||||
|
||||
error:
|
||||
printf("ERROR: result = %d\n", result );
|
||||
return result;
|
||||
}
|
||||
#endif
|
||||
/*
|
||||
* PortAudio Portable Real-Time Audio Library
|
||||
* Latest Version at: http://www.portaudio.com
|
||||
*
|
||||
* Copyright (c) 1999-2010 Phil Burk and Ross Bencina
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files
|
||||
* (the "Software"), to deal in the Software without restriction,
|
||||
* including without limitation the rights to use, copy, modify, merge,
|
||||
* publish, distribute, sublicense, and/or sell copies of the Software,
|
||||
* and to permit persons to whom the Software is furnished to do so,
|
||||
* subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be
|
||||
* included in all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||||
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
|
||||
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
|
||||
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* The text above constitutes the entire PortAudio license; however,
|
||||
* the PortAudio community also makes the following non-binding requests:
|
||||
*
|
||||
* Any person wishing to distribute modifications to the Software is
|
||||
* requested to send the modifications to the original developer so that
|
||||
* they can be incorporated into the canonical version. It is also
|
||||
* requested that these non-binding requests be included along with the
|
||||
* license above.
|
||||
*/
|
||||
|
||||
/**
|
||||
* Very simple WAV file writer for saving captured audio.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include "write_wav.h"
|
||||
|
||||
|
||||
/* Write long word data to a little endian format byte array. */
|
||||
static void WriteLongLE( unsigned char **addrPtr, unsigned long data )
|
||||
{
|
||||
unsigned char *addr = *addrPtr;
|
||||
*addr++ = (unsigned char) data;
|
||||
*addr++ = (unsigned char) (data>>8);
|
||||
*addr++ = (unsigned char) (data>>16);
|
||||
*addr++ = (unsigned char) (data>>24);
|
||||
*addrPtr = addr;
|
||||
}
|
||||
|
||||
/* Write short word data to a little endian format byte array. */
|
||||
static void WriteShortLE( unsigned char **addrPtr, unsigned short data )
|
||||
{
|
||||
unsigned char *addr = *addrPtr;
|
||||
*addr++ = (unsigned char) data;
|
||||
*addr++ = (unsigned char) (data>>8);
|
||||
*addrPtr = addr;
|
||||
}
|
||||
|
||||
/* Write IFF ChunkType data to a byte array. */
|
||||
static void WriteChunkType( unsigned char **addrPtr, unsigned long cktyp )
|
||||
{
|
||||
unsigned char *addr = *addrPtr;
|
||||
*addr++ = (unsigned char) (cktyp>>24);
|
||||
*addr++ = (unsigned char) (cktyp>>16);
|
||||
*addr++ = (unsigned char) (cktyp>>8);
|
||||
*addr++ = (unsigned char) cktyp;
|
||||
*addrPtr = addr;
|
||||
}
|
||||
|
||||
#define WAV_HEADER_SIZE (4 + 4 + 4 + /* RIFF+size+WAVE */ \
|
||||
4 + 4 + 16 + /* fmt chunk */ \
|
||||
4 + 4 ) /* data chunk */
|
||||
|
||||
|
||||
/*********************************************************************************
|
||||
* Open named file and write WAV header to the file.
|
||||
* The header includes the DATA chunk type and size.
|
||||
* Returns number of bytes written to file or negative error code.
|
||||
*/
|
||||
long Audio_WAV_OpenWriter( WAV_Writer *writer, const char *fileName, int frameRate, int samplesPerFrame )
|
||||
{
|
||||
unsigned int bytesPerSecond;
|
||||
unsigned char header[ WAV_HEADER_SIZE ];
|
||||
unsigned char *addr = header;
|
||||
int numWritten;
|
||||
|
||||
writer->dataSize = 0;
|
||||
writer->dataSizeOffset = 0;
|
||||
|
||||
writer->fid = fopen( fileName, "wb" );
|
||||
if( writer->fid == NULL )
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* Write RIFF header. */
|
||||
WriteChunkType( &addr, RIFF_ID );
|
||||
|
||||
/* Write RIFF size as zero for now. Will patch later. */
|
||||
WriteLongLE( &addr, 0 );
|
||||
|
||||
/* Write WAVE form ID. */
|
||||
WriteChunkType( &addr, WAVE_ID );
|
||||
|
||||
/* Write format chunk based on AudioSample structure. */
|
||||
WriteChunkType( &addr, FMT_ID );
|
||||
WriteLongLE( &addr, 16 );
|
||||
WriteShortLE( &addr, WAVE_FORMAT_PCM );
|
||||
bytesPerSecond = frameRate * samplesPerFrame * sizeof( short);
|
||||
WriteShortLE( &addr, (short) samplesPerFrame );
|
||||
WriteLongLE( &addr, frameRate );
|
||||
WriteLongLE( &addr, bytesPerSecond );
|
||||
WriteShortLE( &addr, (short) (samplesPerFrame * sizeof( short)) ); /* bytesPerBlock */
|
||||
WriteShortLE( &addr, (short) 16 ); /* bits per sample */
|
||||
|
||||
/* Write ID and size for 'data' chunk. */
|
||||
WriteChunkType( &addr, DATA_ID );
|
||||
/* Save offset so we can patch it later. */
|
||||
writer->dataSizeOffset = (int) (addr - header);
|
||||
WriteLongLE( &addr, 0 );
|
||||
|
||||
numWritten = fwrite( header, 1, sizeof(header), writer->fid );
|
||||
if( numWritten != sizeof(header) ) return -1;
|
||||
|
||||
return (int) numWritten;
|
||||
}
|
||||
|
||||
/*********************************************************************************
|
||||
* Write to the data chunk portion of a WAV file.
|
||||
* Returns bytes written or negative error code.
|
||||
*/
|
||||
long Audio_WAV_WriteShorts( WAV_Writer *writer,
|
||||
short *samples,
|
||||
int numSamples
|
||||
)
|
||||
{
|
||||
unsigned char buffer[2];
|
||||
unsigned char *bufferPtr;
|
||||
int i;
|
||||
short *p = samples;
|
||||
int numWritten;
|
||||
int bytesWritten;
|
||||
if( numSamples <= 0 )
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
for( i=0; i<numSamples; i++ )
|
||||
{
|
||||
bufferPtr = buffer;
|
||||
WriteShortLE( &bufferPtr, *p++ );
|
||||
numWritten = fwrite( buffer, 1, sizeof( buffer), writer->fid );
|
||||
if( numWritten != sizeof(buffer) ) return -1;
|
||||
}
|
||||
bytesWritten = numSamples * sizeof(short);
|
||||
writer->dataSize += bytesWritten;
|
||||
return (int) bytesWritten;
|
||||
}
|
||||
|
||||
/*********************************************************************************
|
||||
* Close WAV file.
|
||||
* Update chunk sizes so it can be read by audio applications.
|
||||
*/
|
||||
long Audio_WAV_CloseWriter( WAV_Writer *writer )
|
||||
{
|
||||
unsigned char buffer[4];
|
||||
unsigned char *bufferPtr;
|
||||
int numWritten;
|
||||
int riffSize;
|
||||
|
||||
/* Go back to beginning of file and update DATA size */
|
||||
int result = fseek( writer->fid, writer->dataSizeOffset, SEEK_SET );
|
||||
if( result < 0 ) return result;
|
||||
|
||||
bufferPtr = buffer;
|
||||
WriteLongLE( &bufferPtr, writer->dataSize );
|
||||
numWritten = fwrite( buffer, 1, sizeof( buffer), writer->fid );
|
||||
if( numWritten != sizeof(buffer) ) return -1;
|
||||
|
||||
/* Update RIFF size */
|
||||
result = fseek( writer->fid, 4, SEEK_SET );
|
||||
if( result < 0 ) return result;
|
||||
|
||||
riffSize = writer->dataSize + (WAV_HEADER_SIZE - 8);
|
||||
bufferPtr = buffer;
|
||||
WriteLongLE( &bufferPtr, riffSize );
|
||||
numWritten = fwrite( buffer, 1, sizeof( buffer), writer->fid );
|
||||
if( numWritten != sizeof(buffer) ) return -1;
|
||||
|
||||
fclose( writer->fid );
|
||||
writer->fid = NULL;
|
||||
return writer->dataSize;
|
||||
}
|
||||
|
||||
/*********************************************************************************
|
||||
* Simple test that write a sawtooth waveform to a file.
|
||||
*/
|
||||
#if 0
|
||||
int main( void )
|
||||
{
|
||||
int i;
|
||||
WAV_Writer writer;
|
||||
int result;
|
||||
#define NUM_SAMPLES (200)
|
||||
short data[NUM_SAMPLES];
|
||||
short saw = 0;
|
||||
|
||||
for( i=0; i<NUM_SAMPLES; i++ )
|
||||
{
|
||||
data[i] = saw;
|
||||
saw += 293;
|
||||
}
|
||||
|
||||
|
||||
result = Audio_WAV_OpenWriter( &writer, "rendered_midi.wav", 44100, 1 );
|
||||
if( result < 0 ) goto error;
|
||||
|
||||
for( i=0; i<15; i++ )
|
||||
{
|
||||
result = Audio_WAV_WriteShorts( &writer, data, NUM_SAMPLES );
|
||||
if( result < 0 ) goto error;
|
||||
}
|
||||
|
||||
result = Audio_WAV_CloseWriter( &writer );
|
||||
if( result < 0 ) goto error;
|
||||
|
||||
|
||||
return 0;
|
||||
|
||||
error:
|
||||
printf("ERROR: result = %d\n", result );
|
||||
return result;
|
||||
}
|
||||
#endif
|
||||
|
||||
@@ -1,103 +1,103 @@
|
||||
/*
|
||||
* PortAudio Portable Real-Time Audio Library
|
||||
* Latest Version at: http://www.portaudio.com
|
||||
*
|
||||
* Copyright (c) 1999-2010 Phil Burk and Ross Bencina
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files
|
||||
* (the "Software"), to deal in the Software without restriction,
|
||||
* including without limitation the rights to use, copy, modify, merge,
|
||||
* publish, distribute, sublicense, and/or sell copies of the Software,
|
||||
* and to permit persons to whom the Software is furnished to do so,
|
||||
* subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be
|
||||
* included in all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||||
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
|
||||
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
|
||||
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* The text above constitutes the entire PortAudio license; however,
|
||||
* the PortAudio community also makes the following non-binding requests:
|
||||
*
|
||||
* Any person wishing to distribute modifications to the Software is
|
||||
* requested to send the modifications to the original developer so that
|
||||
* they can be incorporated into the canonical version. It is also
|
||||
* requested that these non-binding requests be included along with the
|
||||
* license above.
|
||||
*/
|
||||
#ifndef _WAV_WRITER_H
|
||||
#define _WAV_WRITER_H
|
||||
|
||||
/*
|
||||
* WAV file writer.
|
||||
*
|
||||
* Author: Phil Burk
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/* Define WAV Chunk and FORM types as 4 byte integers. */
|
||||
#define RIFF_ID (('R'<<24) | ('I'<<16) | ('F'<<8) | 'F')
|
||||
#define WAVE_ID (('W'<<24) | ('A'<<16) | ('V'<<8) | 'E')
|
||||
#define FMT_ID (('f'<<24) | ('m'<<16) | ('t'<<8) | ' ')
|
||||
#define DATA_ID (('d'<<24) | ('a'<<16) | ('t'<<8) | 'a')
|
||||
#define FACT_ID (('f'<<24) | ('a'<<16) | ('c'<<8) | 't')
|
||||
|
||||
/* Errors returned by Audio_ParseSampleImage_WAV */
|
||||
#define WAV_ERR_CHUNK_SIZE (-1) /* Chunk size is illegal or past file size. */
|
||||
#define WAV_ERR_FILE_TYPE (-2) /* Not a WAV file. */
|
||||
#define WAV_ERR_ILLEGAL_VALUE (-3) /* Illegal or unsupported value. Eg. 927 bits/sample */
|
||||
#define WAV_ERR_FORMAT_TYPE (-4) /* Unsupported format, eg. compressed. */
|
||||
#define WAV_ERR_TRUNCATED (-5) /* End of file missing. */
|
||||
|
||||
/* WAV PCM data format ID */
|
||||
#define WAVE_FORMAT_PCM (1)
|
||||
#define WAVE_FORMAT_IMA_ADPCM (0x0011)
|
||||
|
||||
|
||||
typedef struct WAV_Writer_s
|
||||
{
|
||||
FILE *fid;
|
||||
/* Offset in file for data size. */
|
||||
int dataSizeOffset;
|
||||
int dataSize;
|
||||
} WAV_Writer;
|
||||
|
||||
/*********************************************************************************
|
||||
* Open named file and write WAV header to the file.
|
||||
* The header includes the DATA chunk type and size.
|
||||
* Returns number of bytes written to file or negative error code.
|
||||
*/
|
||||
long Audio_WAV_OpenWriter( WAV_Writer *writer, const char *fileName, int frameRate, int samplesPerFrame );
|
||||
|
||||
/*********************************************************************************
|
||||
* Write to the data chunk portion of a WAV file.
|
||||
* Returns bytes written or negative error code.
|
||||
*/
|
||||
long Audio_WAV_WriteShorts( WAV_Writer *writer,
|
||||
short *samples,
|
||||
int numSamples
|
||||
);
|
||||
|
||||
/*********************************************************************************
|
||||
* Close WAV file.
|
||||
* Update chunk sizes so it can be read by audio applications.
|
||||
*/
|
||||
long Audio_WAV_CloseWriter( WAV_Writer *writer );
|
||||
|
||||
#ifdef __cplusplus
|
||||
};
|
||||
#endif
|
||||
|
||||
#endif /* _WAV_WRITER_H */
|
||||
/*
|
||||
* PortAudio Portable Real-Time Audio Library
|
||||
* Latest Version at: http://www.portaudio.com
|
||||
*
|
||||
* Copyright (c) 1999-2010 Phil Burk and Ross Bencina
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files
|
||||
* (the "Software"), to deal in the Software without restriction,
|
||||
* including without limitation the rights to use, copy, modify, merge,
|
||||
* publish, distribute, sublicense, and/or sell copies of the Software,
|
||||
* and to permit persons to whom the Software is furnished to do so,
|
||||
* subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be
|
||||
* included in all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||||
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
|
||||
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
|
||||
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* The text above constitutes the entire PortAudio license; however,
|
||||
* the PortAudio community also makes the following non-binding requests:
|
||||
*
|
||||
* Any person wishing to distribute modifications to the Software is
|
||||
* requested to send the modifications to the original developer so that
|
||||
* they can be incorporated into the canonical version. It is also
|
||||
* requested that these non-binding requests be included along with the
|
||||
* license above.
|
||||
*/
|
||||
#ifndef _WAV_WRITER_H
|
||||
#define _WAV_WRITER_H
|
||||
|
||||
/*
|
||||
* WAV file writer.
|
||||
*
|
||||
* Author: Phil Burk
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/* Define WAV Chunk and FORM types as 4 byte integers. */
|
||||
#define RIFF_ID (('R'<<24) | ('I'<<16) | ('F'<<8) | 'F')
|
||||
#define WAVE_ID (('W'<<24) | ('A'<<16) | ('V'<<8) | 'E')
|
||||
#define FMT_ID (('f'<<24) | ('m'<<16) | ('t'<<8) | ' ')
|
||||
#define DATA_ID (('d'<<24) | ('a'<<16) | ('t'<<8) | 'a')
|
||||
#define FACT_ID (('f'<<24) | ('a'<<16) | ('c'<<8) | 't')
|
||||
|
||||
/* Errors returned by Audio_ParseSampleImage_WAV */
|
||||
#define WAV_ERR_CHUNK_SIZE (-1) /* Chunk size is illegal or past file size. */
|
||||
#define WAV_ERR_FILE_TYPE (-2) /* Not a WAV file. */
|
||||
#define WAV_ERR_ILLEGAL_VALUE (-3) /* Illegal or unsupported value. Eg. 927 bits/sample */
|
||||
#define WAV_ERR_FORMAT_TYPE (-4) /* Unsupported format, eg. compressed. */
|
||||
#define WAV_ERR_TRUNCATED (-5) /* End of file missing. */
|
||||
|
||||
/* WAV PCM data format ID */
|
||||
#define WAVE_FORMAT_PCM (1)
|
||||
#define WAVE_FORMAT_IMA_ADPCM (0x0011)
|
||||
|
||||
|
||||
typedef struct WAV_Writer_s
|
||||
{
|
||||
FILE *fid;
|
||||
/* Offset in file for data size. */
|
||||
int dataSizeOffset;
|
||||
int dataSize;
|
||||
} WAV_Writer;
|
||||
|
||||
/*********************************************************************************
|
||||
* Open named file and write WAV header to the file.
|
||||
* The header includes the DATA chunk type and size.
|
||||
* Returns number of bytes written to file or negative error code.
|
||||
*/
|
||||
long Audio_WAV_OpenWriter( WAV_Writer *writer, const char *fileName, int frameRate, int samplesPerFrame );
|
||||
|
||||
/*********************************************************************************
|
||||
* Write to the data chunk portion of a WAV file.
|
||||
* Returns bytes written or negative error code.
|
||||
*/
|
||||
long Audio_WAV_WriteShorts( WAV_Writer *writer,
|
||||
short *samples,
|
||||
int numSamples
|
||||
);
|
||||
|
||||
/*********************************************************************************
|
||||
* Close WAV file.
|
||||
* Update chunk sizes so it can be read by audio applications.
|
||||
*/
|
||||
long Audio_WAV_CloseWriter( WAV_Writer *writer );
|
||||
|
||||
#ifdef __cplusplus
|
||||
};
|
||||
#endif
|
||||
|
||||
#endif /* _WAV_WRITER_H */
|
||||
|
||||
Reference in New Issue
Block a user