我正在尝试从网络服务器播放音频 mp3 文件而不将其下载到文件系统。这就是我获取此文件并播放它的方式:
var url = require('url');
var http = require('http');
var player = require('./player.js');
function initPlayback(res) {
player.play(res);
player.onPlaybackEnds(function() {
console.log('Playback ends.');
});
}
exports.add = function(file_url) {
var options = {
host: url.parse(file_url).host,
port: 80,
path: url.parse(file_url).pathname
};
http.get(options, function(res) {
initPlayback(res);
});
};
播放器.js:
var fs = require('fs');
var lame = require('lame');
var Speaker = require('speaker');
var options = {
audio: {
channels: 2,
bitDepth: 16,
sampleRate: 44100
}
};
var decoderMp3 = lame.Decoder();
var speaker = new Speaker(options);
var onPlaybackEnds = function() {};
function playMp3(dataStream) {
speaker = new Speaker(options);
decoderMp3 = lame.Decoder();
dataStream.pipe(decoderMp3).pipe(speaker);
speaker.on('flush', function() {
onPlaybackEnds();
});
}
exports.play = function(dataStream) {
playMp3(dataStream);
};
exports.onPlaybackEnds = function(callback) {
onPlaybackEnds = callback;
};
我从运行得到的输出add("http://localhost/file.mp3")
是:
Note: Illegal Audio-MPEG-Header 0x41504554 at offset 201915.
Note: Trying to resync...
Note: Hit end of (available) data during resync.
Playback ends.
似乎在事件发生之前flush
发生了一些错误。曲目播放直到结束。然而,当我尝试运行相同的东西时,它甚至都没有启动。有任何想法吗?