ardour/livetrax
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NO-OP: use #define for de-click + fade gain coefficient

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This commit is contained in:
Robin Gareus 2020-02-12 17:06:41 +01:00
parent cc4aeb1f40
commit f477dd088c
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 9 additions and 6 deletions
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15
libs/ardour/disk_reader.cc
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@ -1431,6 +1431,11 @@ DiskReader::dec_no_disk_output ()
} while (true);
}
/* min gain difference for de-click and loop-fadess
* (-60dB difference to target)
*/
#define GAIN_COEFF_DELTA (1e-5)
DiskReader::DeclickAmp::DeclickAmp (samplecnt_t sample_rate)
{
_a = 4550.f / (gain_t)sample_rate;
@ -1477,7 +1482,7 @@ DiskReader::DeclickAmp::apply_gain (AudioBuffer& buf, samplecnt_t n_samples, con
offset += n_proc;
}
if (fabsf (g - target) < /* GAIN_COEFF_DELTA */ 1e-5) {
if (fabsf (g - target) < GAIN_COEFF_DELTA) {
_g = target;
} else {
_g = g;
@ -1509,8 +1514,6 @@ DiskReader::Declicker::alloc (samplecnt_t sr, bool fadein)
samplecnt_t n;
#define GAIN_COEFF_DELTA (1e-5)
if (fadein) {
gain_t g = 0.0;
for (n = 0; (n < loop_fade_length) && ((1.f - g) > GAIN_COEFF_DELTA); ++n) {
@ -1530,8 +1533,6 @@ DiskReader::Declicker::alloc (samplecnt_t sr, bool fadein)
/* zero out the rest just to be safe */
memset (&vec[n], 0, sizeof (gain_t) * (loop_fade_length - n));
#undef GAIN_COEFF_DELTA
}
void
@ -1732,11 +1733,13 @@ DiskReader::rt_midibuffer ()
void
DiskReader::alloc_loop_declick (samplecnt_t sr)
{
loop_fade_length = lrintf (ceil (-log (1e-5) / (1024.f/sr)));
loop_fade_length = lrintf (ceil (-log (GAIN_COEFF_DELTA) / (1024. / sr)));
loop_declick_in.alloc (sr, true);
loop_declick_out.alloc (sr, false);
}
#undef GAIN_COEFF_DELTA
void
DiskReader::reset_loop_declick (Location* loc, samplecnt_t sr)
{