Node,Angular,RecordRTC - 将上传的视频blob保存到磁盘

时间:2018-03-04 15:27:26

标签: angularjs express file-upload recordrtc

我想在节点服务器上将已上传的视频+音频blob写入磁盘。 在录制流后,RecordRTC生成了blob,我使用Angular的$ http.post将视频blob和其他一些识别数据一起发送到服务器,如下所示

// localStreamRecorder is an instance of RecordRTC
self.localStreamRecorder.getDataURL(function(dataUrl) {
    var data = {
        call_id: 'USR009',
        media: dataUrl
    };
    $http.post('/api/recorded_call', data)
        .then(function(res) {
            console.log(res);
        }, function(err) {
            console.log(err);
        });
});

在服务器端,我可以访问blob但是我无法使用下面的代码将blob写为有效的视频文件。

app.route('/api/recorded_call')
    .post(function(req, res) {
        console.log(req.body);
        fs.writeFile('video-'+req.body.user_id, req.body.media,
            function(err) {
            if (err) {
                throw err;
            } else {
                res.send({ 'success': true });
            }
        });
    });

无论如何,我可以将blob(req.body的media属性)作为有效的视频文件写入磁盘,以便以后访问和查看吗?

[编辑] 我已经包含了显示以下req.body输出的日志(缩短了媒体属性)

{ call_id: '161f25090811617F62CD62',
  media: 'data:audio/webm;base64,GkXfo59ChoEBQveBAULygQRC84EIQoKEd2VibUKHgQRChYECGFOAZwH/////////FUmpZpkq17GDD0JATYCGQ2hyb21lV0GGQ2hyb21lFlSua7+uvdeBAXPFh5ekuYmhmlqDgQKGhkFfT1BVU2Oik09wdXNIZWFkAQEAAIC7AAAAAADhjbWERzuAAJ+BAWJkgRAfQ7Z1Af/////////ngQCjQh+
BAACA+4PfkcoFL7c9XEormBZ3dLyTnMQQn2YnFE9bYuzBo+L0kXK1ttvkEhn2s7fbuLJzIpRZ5Z2CZM8d5HJ4MNnupGB3DeRV/S9K86keLStaGDzpe4bl9+GcEF8RiyqQbl84TE3HLCJqusEf/voXH+IZ4wm3YT1oFY8ai0PZtdnLqwzdyqUDGCVZGFMqM4swwp5765bzjWL10e7TN6UTelJ2/1VbZ1/WvUzvo1bok7S+En7XuQcBJElINlZ
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}

0 个答案:

没有答案