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func_volume: Accept decimal number as argument

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Allow voice volume to be multiplied or divided by a floating point number.

ASTERISK-28813

Change-Id: I5b42b890ec4e1f6b0b3400cb44ff16522b021c8c
This commit is contained in:
Jean Aunis
2020-04-07 14:05:22 +02:00
committed by Friendly Automation
parent 2b80e5f5da
commit de66713fd5
5 changed files with 68 additions and 6 deletions
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27
main/frame.c
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@@ -43,6 +43,8 @@
#include "asterisk/dsp.h"
#include "asterisk/file.h"
#include <math.h>
#if (defined(LOW_MEMORY) || defined(MALLOC_DEBUG)) && !defined(NO_FRAME_CACHE)
#define NO_FRAME_CACHE
#endif
@@ -706,6 +708,31 @@ int ast_frame_adjust_volume(struct ast_frame *f, int adjustment)
return 0;
}
int ast_frame_adjust_volume_float(struct ast_frame *f, float adjustment)
{
int count;
short *fdata = f->data.ptr;
float adjust_value = fabs(adjustment);
if ((f->frametype != AST_FRAME_VOICE) || !(ast_format_cache_is_slinear(f->subclass.format))) {
return -1;
}
if (!adjustment) {
return 0;
}
for (count = 0; count < f->samples; count++) {
if (adjustment > 0) {
ast_slinear_saturated_multiply_float(&fdata[count], &adjust_value);
} else if (adjustment < 0) {
ast_slinear_saturated_divide_float(&fdata[count], &adjust_value);
}
}
return 0;
}
int ast_frame_slinear_sum(struct ast_frame *f1, struct ast_frame *f2)
{
int count;