javascript - How can I play an audio file while converting it with ffmpeg in Node.js? -


i created simple video-to-audio converter ffmpeg discord.js bot:

let stream = //an mp4 stream ffmpeg(stream)   .toformat("mp3")   .stream(fs.createwritestream("./audio.mp3"))   .on("end", () => {     connection.playstream(fs.createreadstream("./audio.mp3"))   });

this works fine, using .on() play file - after finishes converting - can take while.

is there efficient way use connection.playstream play audio file or stream ffmpeg conversion still happening?

i ended seeing this question , used growing-file module stream file being converted. here's general idea:

const writestream = fs.createwritestream("./audio.mp3"); const stream = //mp4 stream ffmpeg(stream)   .toformat("mp3")   .pipe(writestream); const file = growingfile.open("./audio.mp3"); connection.playstream(file);

the downside still forced download stream mp3 file, while prefer skip step , use connection.playstream play ffmpeg's pipe.

if has idea of how skip mp3 download , stream/pipe connection.playstream, appreciated!


Comments

Post a Comment

Popular posts from this blog

Is there a better way to structure post methods in Class Based Views -

i'm using class based views in django , never specify url in ajax calls , omit action parameter in form because know these requests go through post method of class based view. notice view - profile page make many requests depending on user updating on page - post method become convoluted , if/else mess example: def post(self, request, *args, **kwargs): # handle user changing available date if request.post.get('availabledate') != none: self.updateavailabledate(request) return jsonresponse({'result':'success'}) if request.post.get('newprojectname') != none: creative_user = creativeuserprofile.objects.get(id = request.user.id) project = project.create_project(creative_user, request.post['newprojectname']) project.save() return jsonresponse({'projectid': project.id }) if request.post.get('projectimage') != none , request.files['file']: proj...
Read more

php - Cannot override Laravel Spark authentication with own implementation -

during login process of laravel spark need request token of remote api. api stores exact same users , passwords laravel spark application. therefore need username , non hashed password of user during authentication process. i thought overriding authenticated method solution problem. in routes/web.php override post /login endpoint , pointing endpoint own logincontroller: <?php namespace app\http\controllers\auth; use illuminate\support\facades\log; use illuminate\http\request; use laravel\spark\http\controllers\auth\logincontroller sparklogincontroller; class logincontroller extends sparklogincontroller { /** * create new login controller instance. * * @return void */ public function __construct() { parent::__construct(); } /** * handle successful authentication attempt. * * @param request $request * @param \illuminate\contracts\auth\authenticatable $user * @return response */ public fu...
Read more

What is happening when Matlab is starting a "parallel pool"? -

running parallel cpu processes in matlab starts command parpool() according documentation , function: [creates] special job on pool of workers, , [connects] matlab client parallel pool. this function takes bit of time execute, on order of 30 seconds. in other multi-cpu paradigms openmp, parallel execution seems totally transparent -- i've never noticed behavior analogous matlab (granted i'm not experienced parallel programming). so, happening between time parpool() called , when finishes executing? takes long? parallel computing toolbox enables run matlab code in parallel using several different paradigms (e.g. jobs , tasks, parfor , spmd , parfeval , batch processing), , run either locally (parallelised across cores in local machine) or remotely (parallelised across machines in cluster - either 1 own, or 1 in cloud). in of these cases, code run on matlab workers , copies of matlab without interactive desktop. if you're intending run on remo...
Read more