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• How to execute fluent-ffmpeg commands from express router ?

  27 janvier 2021, par Chris

  so I'm trying to control and m3u8 playlist using data sent in thru an express route and keep getting the same error "Error : ffmpeg exited with code 1 : Conversion failed !" when attempting.

  


  My code looks like this

  


  ch1Router
    .route("/source")
    .post(jsonBodyParser, (req, res, next) => {
        //video url from request body
        const { url } = req.body;
        
        //test console log
        console.log(req.body);

        //ffmpeg commands
        ffmpeg(url)
            .output('videos/Ch1.m3u8')
            .on('error', (err) => {
                console.log("Something Happened:", err.message)
                res.send("Error changing input!")
            })
            .run()
            

        
        res.send("hi")
    })


  


  When I run this exact command in a separate file using Node, the command executes and I only need to refresh my browser to see the new video file. When trying to chain it to a post request containing the video URL I get the conversion error. Any help would be appreciated.

  


  **Updated my code to prevent the server from crashing and respond with an error message but still don't understand the conversion error.

  


• avcodec/flashsv2enc : Fix use of uninitialized value

  27 janvier 2021, par Andreas Rheinhardt

  avcodec/flashsv2enc : Fix use of uninitialized value
  Before 257a83b969157eb76c18158a4e503e908d8b1125, certain buffers were
  
  zero-allocated in the init function and only reallocated lateron if they
  
  turned out to be too small ; now they are only allocated during init,
  
  leading to use-of-uninitialized values lateron. The same could happen
  
  before if the dimensions are big enough so that the buffers would be
  
  reallocated, as the new part of the reallocated buffer would not be
  
  zeroed (happened for 960x960). So always zero the buffers in the
  
  function designed to init them.
  Reviewed-by : Marton Balint <cus@passwd.hu>
  
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
  

  • [DH] libavcodec/flashsv2enc.c

• fluent-ffmpeg add multiple languages from method dynamically nodejs

  18 février 2021, par AmitKumar

  I am trying to add multiple languages and subtitles to a video dynamically. but I am not able to find any solution, I found many results for the command line.

  


  I want to call this command script from my nodejs method

  


  ffmpeg -i captain-marvel-trailer.mp4 -i tamil.mp3 -i telugu.mp3 -i hindi.mp3 -map 1 -map 2 -map 3 -metadata:s:a:0 language=eng -metadata:s:a:1 language=tam -metadata:s:a:2 language=tel -metadata:s:a:3 language=hin -codec copy multilanguage.mp4


  


  Here is my codes :

  


  lodash.each(payloadData.languages,function(language){
    let start = 0;
    let max = payloadData.languages.length;
    while (start < max) {
        // fname = `${path.resolve(`contents/hindi.mp3`)} -map 1 -metadata:s:a:0 language=hin -codec copy ${finalVideoPath}`
        // ffmpeg().input(fname)        
        start += 1;
    }
})
    
ffmpeg('./sample.mov')
    .withOutputFormat('.mp4')
    .size('1920x1080')
    .on("end", function (stdout, stderr) {  

    })
}).on("error", function (err) {
    console.log("an error happened: " + err.message);
}).save(finalVideoPath)