fluent-ffmpeg module: "end" event does not fire

Question

I'm using the fluent-ffmpeg npm module

I've POSTed a video from my client, and am using new stream.Readable to "read" the video Buffer.

ffmpeg is converting and saving the file, and everything seems beautiful, but the "end" event never fires.

My code is as follows:

const videoStream = new stream.Readable({
    read: function (n) {
        this.push(myVideoBuffer);
    }
});

ffmpeg(videoStream)
.on('progress', e => console.log(e))
.on('end', () => {
    console.log('ended')
    videoStream.destroy();
})
.on('error', e => console.error(e))
.save(`${process.cwd()}/media/videos/${Date.now()}.mp4`);

I get a log on every progress event, and it does save the video, but the "end" event's callback never gets called.

I assume this is a bug, since everything else works just fine.

score 2 · Accepted Answer · answered Dec 06 '15 at 22:55

Apparently, I had to push null to my Readable stream after I pushed my Buffer in order to end the stream, which ended the ffmpeg process in turn.

const videoStream = new stream.Readable({
    read: function (n) {
        this.push(myVideoBuffer);
        this.push(null);
    }
});

That's it; now my "end" event is firing, and all is well.

fluent-ffmpeg module: "end" event does not fire

1 Answers1