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avfilter/af_adynamicequalizer: merge direction option with mode option
More user-friendly and self-explanatory what certain mode does.
This commit is contained in:
Paul B Mahol
parent
43226efc21
commit
fd1712b6fb
@ -1054,12 +1054,16 @@ Set the mode of filter operation, can be one of the following:
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@table @samp
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@item listen
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Output only isolated detection signal.
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@item cut
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@item cutbelow
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Cut frequencies below detection threshold.
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@item cutabove
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Cut frequencies above detection threshold.
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@item boost
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Boost frequencies bellow detection threshold.
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@item boostbelow
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Boost frequencies below detection threshold.
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@item boostabove
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Boost frequencies above detection threshold.
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@end table
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Default mode is @samp{cut}.
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Default mode is @samp{cutbelow}.
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@item dftype
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Set the type of detection filter, can be one of the following:
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@ -1082,16 +1086,6 @@ Set the type of target filter, can be one of the following:
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@end table
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Default type is @samp{bell}.
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@item direction
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Set processing direction relative to threshold.
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@table @samp
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@item downward
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Boost/Cut if threshold is higher/lower than detected volume.
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@item upward
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Boost/Cut if threshold is lower/higher than detected volume.
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@end table
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Default direction is @samp{downward}.
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@item auto
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Automatically gather threshold from detection filter. By default
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is @samp{disabled}.
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@ -157,7 +157,6 @@ static int fn(filter_channels)(AVFilterContext *ctx, void *arg, int jobnr, int n
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const int start = (in->ch_layout.nb_channels * jobnr) / nb_jobs;
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const int end = (in->ch_layout.nb_channels * (jobnr+1)) / nb_jobs;
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const int detection = s->detection;
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const int direction = s->direction;
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const int tftype = s->tftype;
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const int mode = s->mode;
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const ftype *da = fn(s->da);
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@ -177,7 +176,7 @@ static int fn(filter_channels)(AVFilterContext *ctx, void *arg, int jobnr, int n
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fn(cc->threshold) = threshold;
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for (int n = 0; n < out->nb_samples; n++) {
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ftype detect, v, listen;
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ftype detect, v, listen, new_gain = ONE;
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ftype k, g;
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detect = listen = fn(get_svf)(src[n], dm, da, dstate);
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@ -186,31 +185,38 @@ static int fn(filter_channels)(AVFilterContext *ctx, void *arg, int jobnr, int n
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if (detection > 0)
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fn(cc->threshold) = FMAX(fn(cc->threshold), detect);
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if (mode >= 0) {
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if (direction == 0 && detect < threshold) {
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detect = CLIP(ONE + makeup + (threshold - detect) * ratio, ONE, range);
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if (!mode)
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detect = ONE / detect;
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} else if (direction == 1 && detect > threshold) {
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detect = CLIP(ONE + makeup + (detect - threshold) * ratio, ONE, range);
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if (!mode)
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detect = ONE / detect;
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} else {
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detect = ONE;
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}
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{
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ftype delta = detect - gain;
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if (delta > EPSILON)
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detect = gain + attack * delta;
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else if (delta < -EPSILON)
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detect = gain + release * delta;
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}
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switch (mode) {
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case LISTEN:
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break;
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case CUT_BELOW:
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if (detect < threshold)
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new_gain = ONE / CLIP(ONE + makeup + (threshold - detect) * ratio, ONE, range);
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break;
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case CUT_ABOVE:
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if (detect > threshold)
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new_gain = ONE / CLIP(ONE + makeup + (detect - threshold) * ratio, ONE, range);
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break;
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case BOOST_BELOW:
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if (detect < threshold)
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new_gain = CLIP(ONE + makeup + (threshold - detect) * ratio, ONE, range);
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break;
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case BOOST_ABOVE:
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if (detect > threshold)
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new_gain = CLIP(ONE + makeup + (detect - threshold) * ratio, ONE, range);
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break;
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}
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if (gain != detect) {
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gain = detect;
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if (mode > LISTEN) {
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ftype delta = new_gain - gain;
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if (delta > EPSILON)
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new_gain = gain + attack * delta;
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else if (delta < -EPSILON)
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new_gain = gain + release * delta;
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}
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if (gain != new_gain) {
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gain = new_gain;
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switch (tftype) {
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case 0:
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@ -23,6 +23,15 @@
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#include "audio.h"
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#include "formats.h"
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enum FilterModes {
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LISTEN = -1,
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CUT_BELOW,
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CUT_ABOVE,
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BOOST_BELOW,
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BOOST_ABOVE,
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NB_MODES,
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};
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typedef struct ChannelContext {
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double fa_double[3], fm_double[3];
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double dstate_double[2];
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@ -52,7 +61,6 @@ typedef struct AudioDynamicEqualizerContext {
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double attack_coef;
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double release_coef;
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int mode;
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int direction;
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int detection;
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int tftype;
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int dftype;
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@ -179,10 +187,12 @@ static const AVOption adynamicequalizer_options[] = {
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{ "ratio", "set ratio factor", OFFSET(ratio), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 30, FLAGS },
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{ "makeup", "set makeup gain", OFFSET(makeup), AV_OPT_TYPE_DOUBLE, {.dbl=0}, 0, 100, FLAGS },
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{ "range", "set max gain", OFFSET(range), AV_OPT_TYPE_DOUBLE, {.dbl=50}, 1, 200, FLAGS },
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{ "mode", "set mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, -1, 1, FLAGS, "mode" },
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{ "listen", 0, 0, AV_OPT_TYPE_CONST, {.i64=-1}, 0, 0, FLAGS, "mode" },
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{ "cut", 0, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "mode" },
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{ "boost", 0, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "mode" },
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{ "mode", "set mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, LISTEN,NB_MODES-1,FLAGS, "mode" },
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{ "listen", 0, 0, AV_OPT_TYPE_CONST, {.i64=LISTEN}, 0, 0, FLAGS, "mode" },
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{ "cutbelow", 0, 0, AV_OPT_TYPE_CONST, {.i64=CUT_BELOW},0, 0, FLAGS, "mode" },
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{ "cutabove", 0, 0, AV_OPT_TYPE_CONST, {.i64=CUT_ABOVE},0, 0, FLAGS, "mode" },
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{ "boostbelow", 0, 0, AV_OPT_TYPE_CONST, {.i64=BOOST_BELOW},0, 0, FLAGS, "mode" },
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{ "boostabove", 0, 0, AV_OPT_TYPE_CONST, {.i64=BOOST_ABOVE},0, 0, FLAGS, "mode" },
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{ "dftype", "set detection filter type",OFFSET(dftype), AV_OPT_TYPE_INT, {.i64=0}, 0, 3, FLAGS, "dftype" },
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{ "bandpass", 0, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "dftype" },
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{ "lowpass", 0, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "dftype" },
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@ -192,9 +202,6 @@ static const AVOption adynamicequalizer_options[] = {
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{ "bell", 0, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "tftype" },
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{ "lowshelf", 0, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "tftype" },
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{ "highshelf",0, 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "tftype" },
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{ "direction", "set direction", OFFSET(direction), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "direction" },
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{ "downward", 0, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "direction" },
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{ "upward", 0, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "direction" },
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{ "auto", "set auto threshold", OFFSET(detection), AV_OPT_TYPE_INT, {.i64=-1}, -1, 1, FLAGS, "auto" },
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{ "disabled", 0, 0, AV_OPT_TYPE_CONST, {.i64=-1}, 0, 0, FLAGS, "auto" },
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{ "off", 0, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "auto" },
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