@lumen5/beamcoder
Version:
Node.js native bindings to FFmpeg.
69 lines (61 loc) • 2.27 kB
JavaScript
/*
Aerostat Beam Coder - Node.js native bindings for FFmpeg.
Copyright (C) 2019 Streampunk Media Ltd.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
https://www.streampunk.media/ mailto:furnace@streampunk.media
14 Ormiscaig, Aultbea, Achnasheen, IV22 2JJ U.K.
*/
const beamcoder = require('../index.js');
async function run() {
let demuxer = await beamcoder.demuxer('../media/sound/BBCNewsCountdown.wav');
console.log(demuxer.streams[0].codecpar);
let muxer = beamcoder.muxer({ filename: 'file:test.wav' });
let stream = muxer.newStream({
name: 'pcm_s16le',
time_base: [1, 48000 ],
interleaved: false, });
Object.assign(stream.codecpar, {
channels: 2,
sample_rate: 48000,
format: 's16',
channel_layout: 'stereo',
block_align: 4,
bits_per_coded_sample: 16,
bit_rate: 48000 * 4 * 8
});
/* let stream = muxer.newStream({
name: 'pcm_s16le',
time_base: [1, 48000 ],
codecpar: {
name: 'pcm_s16le',
channels: 2,
sample_rate: 48000,
format: 's16',
channel_layout: 'stereo',
block_align: 4,
bits_per_coded_sample: 16,
bit_rate: 48000*4
}
}); */
console.log(stream.codecpar);
// stream.time_base = demuxer.streams[0].time_base;
// stream.codecpar = demuxer.streams[0].codecpar;
await muxer.openIO({ options: { blocksize: 8192 }}).then(console.log);
await muxer.writeHeader({ options: { write_bext: true, write_peak: 'on', peak_format: 2 }}).then(console.log);
let packet = {};
for ( let x = 0 ; x < 100 && packet !== null ; x++ ) {
packet = await demuxer.read();
await muxer.writeFrame(packet);
}
await muxer.writeTrailer();
}
run();