diff options
| -rw-r--r-- | include/asterisk/utils.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/asterisk/utils.h b/include/asterisk/utils.h index 6f97770d9..d87ea0339 100644 --- a/include/asterisk/utils.h +++ b/include/asterisk/utils.h @@ -283,6 +283,19 @@ static force_inline void ast_slinear_saturated_add(short *input, short *value) else *input = (short) res; } + +static force_inline void ast_slinear_saturated_subtract(short *input, short *value) +{ + int res; + + res = (int) *input - *value; + if (res > 32767) + *input = 32767; + else if (res < -32767) + *input = -32767; + else + *input = (short) res; +} static force_inline void ast_slinear_saturated_multiply(short *input, short *value) { |