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add audio filter plugin thing

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ed 2023-03-31 20:20:28 +00:00
parent 209b49d771
commit 854ba0ec06
1 changed files with 36 additions and 18 deletions
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54
copyparty/web/browser.js
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@ -2302,12 +2302,14 @@ function start_actx() {
}
}
var audio_eq = (function () {
var afilt = (function () {
var r = {
"en": false,
"eqen": false,
"bands": [31.25, 62.5, 125, 250, 500, 1000, 2000, 4000, 8000, 16000],
"gains": [4, 3, 2, 1, 0, 0, 1, 2, 3, 4],
"filters": [],
"filterskip": [],
"plugs": [],
"amp": 0,
"chw": 1,
"last_au": null,
@ -2396,6 +2398,10 @@ var audio_eq = (function () {
r.filters[a].disconnect();
r.filters = [];
r.filterskip = [];
for (var a = 0; a < r.plugs.length; a++)
r.plugs[a].unload();
if (!mp)
return;
@ -2413,18 +2419,34 @@ var audio_eq = (function () {
if (!actx)
bcfg_set('au_eq', false);
if (!actx || !mp.au || (!r.en && !mp.acs))
var plug = false;
for (var a = 0; a < r.plugs.length; a++)
if (r.plugs[a].en)
plug = true;
if (!actx || !mp.au || (!r.eqen && !plug && !mp.acs))
return;
r.stop();
mp.au.id = mp.au.id || Date.now();
mp.acs = r.acst[mp.au.id] = r.acst[mp.au.id] || actx.createMediaElementSource(mp.au);
if (!r.en) {
mp.acs.connect(actx.destination);
return;
}
if (r.eqen)
add_eq();
for (var a = 0; a < r.plugs.length; a++)
if (r.plugs[a].en)
r.plugs[a].load();
for (var a = 0; a < r.filters.length; a++)
if (!has(r.filterskip, a))
r.filters[a].connect(a ? r.filters[a - 1] : actx.destination);
mp.acs.connect(r.filters.length ?
r.filters[r.filters.length - 1] : actx.destination);
}
function add_eq() {
var min, max;
min = max = r.gains[0];
for (var a = 1; a < r.gains.length; a++) {
@ -2455,9 +2477,6 @@ var audio_eq = (function () {
fi.gain.value = r.amp + 0.94; // +.137 dB measured; now -.25 dB and almost bitperfect
r.filters.push(fi);
for (var a = r.filters.length - 1; a >= 0; a--)
r.filters[a].connect(a > 0 ? r.filters[a - 1] : actx.destination);
if (Math.round(r.chw * 25) != 25) {
var split = actx.createChannelSplitter(2),
merge = actx.createChannelMerger(2),
@ -2482,11 +2501,10 @@ var audio_eq = (function () {
split.connect(lg2, 0);
split.connect(rg1, 1);
split.connect(rg2, 1);
r.filterskip.push(r.filters.length);
r.filters.push(split);
mp.acs.channelCountMode = 'explicit';
}
mp.acs.connect(r.filters[r.filters.length - 1]);
}
function eq_step(e) {
@ -2581,7 +2599,7 @@ var audio_eq = (function () {
txt[a].onkeydown = eq_keydown;
}
bcfg_bind(r, 'en', 'au_eq', false, r.apply);
bcfg_bind(r, 'eqen', 'au_eq', false, r.apply);
r.draw();
return r;
@ -2663,7 +2681,7 @@ function play(tid, is_ev, seek) {
else
mp.au.src = mp.au.rsrc = url;
audio_eq.apply();
afilt.apply();
setTimeout(function () {
mpl.unbuffer(url);
@ -7179,8 +7197,8 @@ ebi('files').onclick = ebi('docul').onclick = function (e) {
function reload_mp() {
if (mp && mp.au) {
if (audio_eq)
audio_eq.stop();
if (afilt)
afilt.stop();
mp.au.pause();
mp.au = null;
@ -7192,8 +7210,8 @@ function reload_mp() {
plays[a].parentNode.innerHTML = '-';
mp = new MPlayer();
if (audio_eq)
audio_eq.acst = {};
if (afilt)
afilt.acst = {};
setTimeout(pbar.onresize, 1);
}