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• How to dump ALL metadata from a media file, including cover image title ? [closed]

  9 avril, par Unideal

  I have an MP3 song :

  


  # ffprobe -hide_banner -i filename.mp3
Input #0, mp3, from 'filename.mp3':
  Metadata:
    composer        : Music Author
    title           : Song Name
    artist          : Singer
    encoder         : Lavf61.7.100
    genre           : Rock
    date            : 2025
  Duration: 00:03:14.04, start: 0.023021, bitrate: 208 kb/s
  Stream #0:0: Audio: mp3 (mp3float), 48000 Hz, stereo, fltp, 192 kb/s
      Metadata:
        encoder         : Lavc61.19
  Stream #0:1: Video: png, rgb24(pc, gbr/unknown/unknown), 600x600 [SAR 1:1 DAR 1:1], 90k tbr, 90k tbn (attached pic)
      Metadata:
        title           : Cover
        comment         : Cover (front)


  


  The task is to save its metadata to a text file and restore from that file later. Both goals should be accomplished with ffmpeg.

  


  The simpliest method is to run :

  


  # ffmpeg -i filename.mp3 -f ffmetadata metadata.txt


  


  After that, metadata.txt contains :

  


  ;FFMETADATA1
composer=Music Author
title=Song Name
artist=Singer
date=2025
genre=Rock
encoder=Lavf61.7.100


  


  I got global metadata only, but stream-specific info (cover image title and comment in my case) are missing.

  


  Google suggested a more complex form of the command above to extract all metadata fields without any exclusions :

  


  # ffmpeg -y -i filename.mp3 -c copy -map_metadata 0 -map_metadata:s:v 0:s:v -map_metadata:s:a 0:s:a -f ffmetadata metadata.txt


  


  But the output is exactly the same :

  


  ;FFMETADATA1
composer=Music Author
title=Song Name
artist=Singer
date=2025
genre=Rock
encoder=Lavf61.7.100


  


  Again, no info about the attached image.

  


  Please explain what am I doing wrong.

  


• FFMPEG convert videos using Automator [closed]

  8 janvier, par FilipPro

  I'm trying to use Apple Automator (v2.10, Sonoma 14.7.1, Apple M1) to select a folder and convert all MP4 files to WMV files using FFMPEG. The user is supposed to export files from Final Cut Pro in MP4, put them in a folder of their choice and then start the automation by having to select the folder where MP4 files are saved.

  


  FFMPEG is installed via Homebrew and the installation folder was found via "which ffmpeg" ( /opt/homebrew/bin/ffmpeg ).

  


  This is the worklow I currently have : Full Automator Workflow

  


  


  1. Run AppleScript

     


     

     1. 


        on run {input, parameters}

  tell application "System Events"
    activate
    return text returned of (display dialog "Enter administrator password" default answer "" with hidden answer)
  end tell

  return input
end run


        


     


     


  


  2. Run Shell script (/bin/zsh, no input required)

     


     

     1. 


        sudo -S id -u


        


     


     


  


  3. Ask for Finder elements

     


     

     1. Select folder, starting from "Downloads" folder, no multiple selection

     


     


  


  4. Run Shell script (/bin/zsh, input as arguments)

     


     

     1. 


        cd "$1"

for f in *.mp4; do
  osascript -e "display notification \"Converting file: $f \" with title \"Video Conversion\""
  sudo /opt/homebrew/bin/ffmpeg -i "$f" -c:v wmv2 -b:v 3000k -c:a wmav2 -b:c 192k "${f%.*}.wmv"
  if [ $? -eq 0 ]; then
      osascript -e "display notification \"Converted file: $f \" with title \"Video Conversion\""
  else
      osascript -e "display notification \"Error converting file: $f \" with title \"Video Conversion\""
  fi
done


        


     


     


  


  


  The actual script (step 4) works perfectly if handtyped in Terminal but FFMPEG return "Error opening output files : Invalid argument" when run within the Automator workflow.

  


  This is the output of step 4 (I added *REDACTED FOR PRIVACY* instead of actual filenames) :

  


  ffmpeg version 7.1 Copyright (c) 2000-2024 the FFmpeg developers
built with Apple clang version 16.0.0 (clang-1600.0.26.4)
configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/7.1_3 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libharfbuzz --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox --enable-neon
libavutil      59. 39.100 / 59. 39.100
libavcodec     61. 19.100 / 61. 19.100
libavformat    61.  7.100 / 61.  7.100
libavdevice    61.  3.100 / 61.  3.100
libavfilter    10.  4.100 / 10.  4.100
libswscale      8.  3.100 /  8.  3.100
libswresample   5.  3.100 /  5.  3.100
libpostproc    58.  3.100 / 58.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '*REDACTED FOR PRIVACY*':
Metadata:
major_brand     : mp42
minor_version   : 1
compatible_brands: isommp41mp42
creation_time   : 2024-12-30T17:06:35.000000Z
Duration: 00:00:15.00, start: 0.000000, bitrate: 5122 kb/s
Stream #0:0[0x1](und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080, 5119 kb/s, SAR 1:1 DAR 16:9, 24 fps, 24 tbr, 24k tbn (default)
Metadata:
creation_time   : 2024-12-30T17:06:35.000000Z
handler_name    : Core Media Video
vendor_id       : [0][0][0][0]
Trailing garbage at the end of a stream specifier: c
Error opening output file *REDACTED FOR PRIVACY*.
Error opening output files: Invalid argument”


  


• avformat : remove deprecated FF_API_GET_DUR_ESTIMATE_METHOD

  19 février, par James Almer

  avformat : remove deprecated FF_API_GET_DUR_ESTIMATE_METHOD
  Deprecated since 2024-03-06.
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] libavformat/avformat.h
  • [DH] libavformat/options.c
  • [DH] libavformat/version_major.h