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• "Cannot find ffmpeg" error when using 'audioconcat'

  2 janvier 2020, par Mosukoshide

  I would like to concatenate three ’.oga’ sound files using audioconcat, however whenever I try to do so, I am met with this error :

  Error: Error: Cannot find ffmpeg
  
      at /root/user/node_modules/fluent-ffmpeg/lib/processor.js:136:22
  
      at /root/user/node_modules/fluent-ffmpeg/lib/capabilities.js:123:9
  
      at /root/user/node_modules/fluent-ffmpeg/lib/capabilities.js:116:11
  
      at /root/user/node_modules/fluent-ffmpeg/lib/utils.js:223:16
  
      at F (/root/user/node_modules/which/which.js:68:16)
  
      at E (/root/user/node_modules/which/which.js:80:29)
  
      at /root/user/node_modules/which/which.js:89:16
  
      at /root/user/node_modules/isexe/index.js:42:5
  
      at /root/user/node_modules/isexe/mode.js:8:5
  
      at FSReqWrap.oncomplete (fs.js:152:21)
  
  ffmpeg stderr: undefined

  I have already installed ffmpeg with the flags that were listed on the audioconcat npm page like this :

  npm i ffmpeg --enable-libass --enable-libmp3lame

  And the code I am trying to run looks like this :

                  audioconcat(audioFiles)
  
                  .concat(`main.oga`)
  
                  .on('start', function (command) {
  
                    console.log('ffmpeg process started:', command)
  
                  })
  
                  .on('error', function (err, stdout, stderr) {
  
                    console.error('Error:', err)
  
                    console.error('ffmpeg stderr:', stderr)
  
                  })
  
                  .on('end', function (output) {
  
                    console.error('Audio created in:', output)
  
                  })

  I’m not sure how to fix this problem...

• Recursively running ffmpeg concat script in bash across multiple folders

  15 août 2022, par Sam Feldman

  I wrote a bash script that concatenates all video files in a folder using ffmpeg. I would like to be able to run this script recursively on multiple folders. My problem has been that I am unable to change into the directory of every new folder to run the script. This is required for my script to work. Does anyone know what I could accomplish this ?

  


      #!/bin/bash

for f in *; do echo "file '$f'" >> files.txt; done
for f in *; do echo "'$f'" >> filesdelete.txt; done
ffmpeg -f concat -safe 0 -i files.txt -c copy "${PWD##*/}".MP4
xargs -I{} rm -r "{}" < filesdelete.txt
rm files.txt
rm filesdelete.txt


  


  I start with the file structure below. The script runs in each subdirectory (dir1, dir2, dir3) and combines the files in each subdirectory into one video. For the script to run, it needs to cd into each directory.

  


  root
├── dir1
│   ├── video1.mp4
│   ├── video2.mp4
│   └── video3.mp4
├── dir2
│   ├── video1.mp4
│   └── video2.mp4
└── dir3
    ├── video1.mp4
    └── video2.mp4


  


  The end result should look like the structure below.

  


  root
├── dir1
│   └── concat.mp4
├── dir2
│   └── concat.mp4
└── dir3
    └── concat.mp4


  


• unable ti decode video using h264_cuvid

  1er novembre 2017, par aymen

  I am using nvidia GTX 1080Ti, Driver Version : 387.12 .

  I am using the below command :

  ffmpeg -c:v h264_cuvid -i http://stream:port/channel output.mkv 

  And getting the following output :

  ffmpeg version 3.3.4 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
  
    configuration: --prefix=/root/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --extra-cflags=-I/usr/local/cuda-8.0/include --extra-ldflags=-L/usr/local/cuda-8.0/lib64 --bindir=/root/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-cuda --enable-cuvid --enable-nvenc --enable-libnpp
  
    libavutil      55. 58.100 / 55. 58.100
  
    libavcodec     57. 89.100 / 57. 89.100
  
    libavformat    57. 71.100 / 57. 71.100
  
    libavdevice    57.  6.100 / 57.  6.100
  
    libavfilter     6. 82.100 /  6. 82.100
  
    libswscale      4.  6.100 /  4.  6.100
  
    libswresample   2.  7.100 /  2.  7.100
  
    libpostproc    54.  5.100 / 54.  5.100
  
  [h264 @ 0x24d2f60] non-existing PPS 2 referenced
  
  [h264 @ 0x24d2f60] non-existing PPS 1 referenced
  
  [h264 @ 0x24d2f60] Invalid NAL unit 0, skipping.
  
      Last message repeated 2 times
  
  [h264 @ 0x24d2f60] slice type 12 too large at 1
  
  [h264 @ 0x24d2f60] decode_slice_header error
  
  [h264 @ 0x24d2f60] data partitioning is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
  
  [h264 @ 0x24d2f60] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)
  
  [h264 @ 0x24d2f60] data partitioning is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
  
  [h264 @ 0x24d2f60] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)
  
  [h264 @ 0x24d2f60] data partitioning is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
  
  [h264 @ 0x24d2f60] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)
  
  [h264 @ 0x24d2f60] no frame!
  
  [h264 @ 0x24d2f60] non-existing PPS 1 referenced
  
  [h264 @ 0x24d2f60] decode_slice_header error
  
  [h264 @ 0x24d2f60] no frame!
  
  [h264 @ 0x24d2f60] SEI type 66 size 1104 truncated at 400
  
  [h264 @ 0x24d2f60] sps_id 1 out of range
  
  [h264 @ 0x24d2f60] non-existing PPS 3 referenced
  
  [h264 @ 0x24d2f60] non-existing PPS 2 referenced
  
  [h264 @ 0x24d2f60] non-existing PPS 1 referenced
  
  [h264 @ 0x24d2f60] SEI type 87 size 1264 truncated at 1224
  
  [h264 @ 0x24d2f60] sps_id 1 out of range
  
  [h264 @ 0x24d2f60] non-existing PPS 3 referenced
  
  [h264 @ 0x24d2f60] Invalid NAL unit 0, skipping.
  
   ........
  
  
  
  [h264 @ 0x24d2f60] non-existing PPS 0 referenced
  
  [h264 @ 0x24d2f60] decode_slice_header error
  
  [h264 @ 0x24d2f60] no frame!
  
  [mpegts @ 0x24c4640] decoding for stream 0 failed
  
  Input #0, mpegts, from 'http://stream:port/channel':
  
    Duration: N/A, start: 27359.989822, bitrate: N/A
  
    Program 1108
  
      Stream #0:0[0x3f2]: Video: h264 ([2][0][0][0] / 0x0002), yuv420p(bottom first), 46x24, 0.69 fps, 25 tbr, 90k tbn, 1.38 tbc
  
      Stream #0:1[0x3f3](eng): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 128 kb/s
  
  File 'output.mkv' already exists. Overwrite ? [y/N] 

  Do you have any idea about this problem ?