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• Node.js ffmetadata incorrect codec parameters

  21 juillet 2015, par Ahmed Hamdy

  I’m making a song downloader app in Node.js. I managed to get everything to work, the app downloads the song and downloads its artwork (image). So I have the mp3 file and jpg file. The only problem is attaching the jpg file to the mp3 file.

  I’m using the ffmetadata node.js module. I downloaded and installed its dependency "ffmpeg" cli.

  Now when I try to write the metadata to the mp3 file and attach the artwork it spits this error :

  Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument

  My code :

  ffmetadata.write('test.mp3', {}, {attachments: ['test.jpg']}, function(err) {
  
    if (err) console.error(err);
  
  });

  The error :

  [Error: ffmpeg version N-73872-g6b96c70 Copyright (c) 2000-2015 the FFmpeg developers
  
    built with gcc 4.9.2 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
  
    libavutil      54. 28.100 / 54. 28.100
  
    libavcodec     56. 50.101 / 56. 50.101
  
    libavformat    56. 40.101 / 56. 40.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 25.100 /  5. 25.100
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.101 /  1.  2.101
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'songs/Irresistible - Fall Out Boy (Lyrics).mp3':
  
    Metadata:
  
      major_brand     : dash
  
      minor_version   : 0
  
      compatible_brands: iso6mp41
  
      creation_time   : 2015-04-03 10:45:25
  
    Duration: 00:03:26.94, start: 0.000000, bitrate: 128 kb/s
  
      Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
  
      Metadata:
  
        creation_time   : 2015-04-03 10:45:25
  
        handler_name    : SoundHandler
  
  Input #1, image2, from 'songs/albumart/Irresistible - Fall Out Boy (Lyrics).jpg':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: 24578 kb/s
  
      Stream #1:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 640x640 [SAR 300:300 DAR 1:1], 25 tbr, 25 tbn, 25 tbc
  
  [mp3 @ 0000000004865d80] Invalid audio stream. Exactly one MP3 audio stream is required.
  
  Output #0, mp3, to 'songs\Irresistible - Fall Out Boy (Lyrics).ffmetadata.mp3':
  
    Metadata:
  
      major_brand     : dash
  
      minor_version   : 0
  
      compatible_brands: iso6mp41
  
      dryRun          : true
  
      encoder         : Lavf56.40.101
  
      Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, 125 kb/s (default)
  
      Metadata:
  
        creation_time   : 2015-04-03 10:45:25
  
        handler_name    : SoundHandler
  
      Stream #0:1: Video: mjpeg, yuvj444p, 640x640 [SAR 300:300 DAR 1:1], q=2-31, 25 tbr, 25 tbn, 25 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #1:0 -> #0:1 (copy)
  
  Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
  
  ]

• C# (discord music bot) Youtube to mp3 api with ffmpeg

  4 octobre 2017, par Greg Varadi

  Ok, so i have made a discord music bot before with youtube-dl in C#. But I don’t like it because it’s very slow. It has to download the song and then stream it using ffmpeg to discord. I don’t know but I think there is a quicker way.

  So, i decided to use a youtube to mp3 api to get a mp3 as quick as possible, but it won’t work. I mean I found an api that worked, but it’s the worst api I ever seen. This is the api : http://www.convertmp3.io/api/ . Sometimes doesn’t give the mp3, just a link to a download page that doesn’t work.

  I’m still searching for an api. Last time I found this :
  http://www.yt-mp3.com/fetch?v=VIDEO-ID&apikey=1234567
  This is for me the best. But ffmpeg doesn’t recognize the mp3. And I don’t know why because I can’t see any difference beetween them. Of course it’s probably something different but I can’t see what. And I don’t even know that ffmpeg will recognize any of these api’s mp3 files, but it’s working with this convertmp3.io api.

  So, my question is, is there someone who did something like this or someone who can give me advice ?

  By the way, I want something that is as quick as oxyl- or hime bot. And I know that using apis for getting mp3 from youtube videos is not by all means the most legal thing, because the copyright and stuff, but yeah... This is the only way, I think.

• ffmpeg replace audio with filter complex start and end time [closed]

  3 juin 2020, par a4n6c

  I have this code that I found on one of the posts in StackOverflow and I tested it and it works however the only slight problem I need fixing on this.
  

  



  ffmpeg -y -i  "C:\Users\test\Desktop\vidz\New folder (2)\target\vaastav song .mp4" -i "C:\Users\test\Desktop\vidz\New folder (2)\target\2.mp3" -filter_complex "[0:a]atrim=start=0:05,asetpts=PTS-STARTPTS[aud1];[1:a]atrim=0:09,afade=t=out:st=57:d=3,asetpts=PTS-STARTPTS[aud2];  [aud2][aud1]concat=n=2:v=0:a=1[aout]"  -map 0:v -map "[aout]" -c:v copy -c:a  libmp3lame "C:\Users\test\Desktop\vidz\New folder (2)\target\output1.mp4"


  



  were you see the end-time [1:a]atrim=0:09 works ok does what i need it to do but the start time is not working accordingly as it starts playing the mp3 on the start of the video even when i set the time too atrim=start=0:05.