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• How to convert gif in mp4 video with Nodejs ?

  23 septembre 2021, par Somename

  Is there a way to convert a .gif uploaded image into .mp4 with only Nodejs ? How do I integrate that with a MEAN app ? I want to be able to store the converted .mp4 file to S3.

  



  Using : https://www.npmjs.com/package/fluent-ffmpeg-extended but get error : Invalid Input

  



  var upload = multer({
    storage: multerS3({
       s3: s3,
       bucket: 'mybucket',
       key: function (req, file, cb) {
        var extension = file.originalname.substring(file.originalname.lastIndexOf('.')+1).toLowerCase();
            if(extension == "gif"){
                console.log(file);
                var proc = new ffmpeg({ source: file })
                  .usingPreset('podcast')
                  .saveToFile('/path/to/your_target.m4v', function(stdout, stderr) {
                    console.log('file has been converted succesfully');
                  });
            }
            else{
                cb(null, file.originalname);
            }
        }
    })
});


  



  Many thanks.

  


• why i dont able to store hls file to the path which is mounted to aws s3 while converting using ffmpeg ?

  16 juin 2024, par Arjit

  why i dont able to store hls file to the path which is mounted to aws s3 while converting a rtmp stream using ffmpeg ? It's work when the path is non mounted.

  


  Actually I m using nginx rtmp to run a rtmp server & I want it in the foem of hls thats why the rtmp block look like this :

  


  rtmp{
    server{
        listen 1935;
        chunk_size 4096;
        # allow publish 127.0.0.1;
        allow publish all;
        # deny publish all;

        application live{
            live on;
            record off;

            hls on;
            hls_path /tmp/hls;
            hls_fragment 10s;
            hls_playlist_length 5m;
        }
    }
}


  


  And I mounted that hls path (in this case /tmp/hls)to a aws s3 bucket using s3fs.and its not storing only when the path mounted.what can be a good solution of this ?

  


  Why this happen & what can be a good solution of this ?

  


• Video captured from x11grab is not playable in HLS format on Firefox/Safari

  27 juillet 2022, par spartanz51

  I'm trying to produce an HLS playlist from a video file.

  


  It's a file captured from a virtual screen with ffmpeg and x11grab module :

  


  ffmpeg -y -t 10 -copyts -draw_mouse 0 -framerate 24 -f x11grab -thread_queue_size 1024 -i :0 -f pulse -i default -acodec copy /tmp/test_preprocessed.mkv


  


  But when I'm trying to produce HLS from this file, the output seems not correct, as it doesn't play in Firefox/Safari, but does play in Chrome (using hls.js or https://www.hlsplayer.net/ for example)

  


  Original file : https://transfer.sh/y1a6Fv/735171b9-42a1-461a-a118-981119bdf74e_preprocessed.mkv

  


  HLS Playlist generated from this file : https://video-staging-bucket.ams3.digitaloceanspaces.com/c08584ca-4731-4820-b5c7-71f12955c0b2/stackoverflow/playlist.m3u8

  


  (Works in https://www.hlsplayer.net/ with chrome, doesn't works with Firefox/Safari)

  


  How I'm producing the HLS :

  


  ffmpeg -y \
  -t 10 \
  -i 735171b9-42a1-461a-a118-981119bdf74e_preprocessed.mkv \
  -r 24 \
  -filter_complex '[0:v]split=3[v1][v2][v3]; [v1]scale=w=1280:h=720[v1out]; [v2]scale=w=854:h=480[v2out]; [v3]scale=w=640:h=360[v3out]' \
  -map '[v1out]' -c:v:0 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:0 3200k -maxrate:v:0 3200k -minrate:v:0 2500k -bufsize:v:0 3200k -preset slow -g 48 -sc_threshold 0 -keyint_min 48 \
  -map '[v2out]' -c:v:1 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:1 1600k -maxrate:v:1 1600k -minrate:v:1 1250k -bufsize:v:1 1600k -preset slow -g 48 -sc_threshold 0 -keyint_min 48 \
  -map '[v3out]' -c:v:2 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:2 900k -maxrate:v:2 900k -minrate:v:2 700k -bufsize:v:2 900k -preset slow -g 48 -sc_threshold 0 -keyint_min 48 \
  -map a:0 -c:a:0 aac -b:a:0 96k \
  -map a:0 -c:a:1 aac -b:a:1 128k \
  -map a:0 -c:a:2 aac -b:a:2 128k \
  -f hls \
  -hls_time 4 \
  -hls_playlist_type vod \
  -hls_flags independent_segments \
  -hls_segment_type mpegts \
  -hls_segment_filename 'hls'/stream_%v_data%02d.ts \
  -master_pl_name playlist.m3u8 \
  -var_stream_map "v:0,a:0 v:1,a:1 v:2,a:2" \
  -t 10 \
  'hls'/stream_%v.m3u8


  


  Is there something I missed ? Maybe a standard ? Or maybe problem is related to PTS/DTS of my file ?
Thanks !