130 lines
2.6 KiB
JavaScript
130 lines
2.6 KiB
JavaScript
import React from 'react';
|
|
|
|
import Grid from '@mui/material/Grid';
|
|
|
|
import Audio from '../../settings/Audio';
|
|
|
|
function init(initialState) {
|
|
const state = {
|
|
bitrate: '64',
|
|
channels: '2',
|
|
layout: 'stereo',
|
|
sampling: '44100',
|
|
...initialState,
|
|
};
|
|
|
|
return state;
|
|
}
|
|
|
|
function createMapping(settings, stream) {
|
|
let sampling = settings.sampling;
|
|
let layout = settings.layout;
|
|
|
|
if (sampling === 'inherit') {
|
|
sampling = stream.sampling_hz;
|
|
}
|
|
|
|
if (layout === 'inherit') {
|
|
layout = stream.layout;
|
|
}
|
|
|
|
// '-qscale:a', '6'
|
|
const local = ['-codec:a', 'libmp3lame', '-b:a', `${settings.bitrate}k`, '-shortest', '-filter:a', `aresample=osr=${sampling}:ocl=${layout}`];
|
|
|
|
const mapping = {
|
|
global: [],
|
|
local: local,
|
|
};
|
|
|
|
return mapping;
|
|
}
|
|
|
|
function Coder(props) {
|
|
const settings = init(props.settings);
|
|
const stream = props.stream;
|
|
|
|
const handleChange = (newSettings) => {
|
|
let automatic = false;
|
|
if (!newSettings) {
|
|
newSettings = settings;
|
|
automatic = true;
|
|
}
|
|
|
|
props.onChange(newSettings, createMapping(newSettings, stream), automatic);
|
|
};
|
|
|
|
const update = (what) => (event) => {
|
|
const value = event.target.value;
|
|
|
|
const newSettings = {
|
|
...settings,
|
|
[what]: value,
|
|
};
|
|
|
|
if (what === 'layout') {
|
|
let channels = stream.channels;
|
|
|
|
switch (value) {
|
|
case 'mono':
|
|
channels = 1;
|
|
break;
|
|
case 'stereo':
|
|
channels = 2;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
newSettings.channels = channels;
|
|
}
|
|
|
|
handleChange(newSettings);
|
|
};
|
|
|
|
React.useEffect(() => {
|
|
handleChange(null);
|
|
// eslint-disable-next-line react-hooks/exhaustive-deps
|
|
}, []);
|
|
|
|
return (
|
|
<Grid container spacing={2}>
|
|
<Grid item xs={12}>
|
|
<Audio.Bitrate value={settings.bitrate} onChange={update('bitrate')} allowCustom />
|
|
</Grid>
|
|
<Grid item xs={12}>
|
|
<Audio.Sampling value={settings.sampling} onChange={update('sampling')} allowInherit allowCustom />
|
|
</Grid>
|
|
<Grid item xs={12}>
|
|
<Audio.Layout value={settings.layout} onChange={update('layout')} allowInherit />
|
|
</Grid>
|
|
</Grid>
|
|
);
|
|
}
|
|
|
|
Coder.defaultProps = {
|
|
stream: {},
|
|
settings: {},
|
|
onChange: function (settings, mapping) {},
|
|
};
|
|
|
|
const coder = 'libmp3lame';
|
|
const name = 'MP3 (libmp3lame)';
|
|
const codec = 'mp3';
|
|
const type = 'audio';
|
|
const hwaccel = false;
|
|
|
|
function summarize(settings) {
|
|
return `${name}, ${settings.bitrate} kbit/s, ${settings.layout}, ${settings.sampling}Hz`;
|
|
}
|
|
|
|
function defaults(stream) {
|
|
const settings = init({});
|
|
|
|
return {
|
|
settings: settings,
|
|
mapping: createMapping(settings, stream),
|
|
};
|
|
}
|
|
|
|
export { coder, name, codec, type, hwaccel, summarize, defaults, Coder as component };
|