mirror of
https://github.com/cookiengineer/audacity
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21 lines
774 B
Plaintext
21 lines
774 B
Plaintext
(DELAY-ALG
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(NAME "delay")
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(ARGUMENTS ("sound_type" "input") ("time_type" "delay") ("double" "feedback"))
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(START (MIN input))
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(STATE ("double" "feedback" "feedback")
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("long" "delaylen" "max(1, round(input->sr * delay))")
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("sample_type *" "delaybuf"
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"(sample_type *) calloc (susp->delaylen, sizeof(sample_type))")
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("sample_type *" "delayptr" "susp->delaybuf")
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("sample_type *" "endptr" "susp->delaybuf + susp->delaylen"))
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(CONSTANT "feedback" "delaylen" "endptr")
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(NOT-REGISTER delaybuf)
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(LINEAR input)
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(TERMINATE (MIN input))
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(INNER-LOOP "output = *delayptr;
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*delayptr = (sample_type) (*delayptr * feedback) + input;
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if (++delayptr >= endptr) delayptr = susp->delaybuf;")
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(FINALIZATION "free(susp->delaybuf);")
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)
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