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• Can not found valid font in ffmpeg android

  8 décembre 2022, par HaryD5

  I want to add text over video using ffmpeg. But it gives me error of Cannot find a valid font.

  


  I used this command

  


  ffmpeg -y -ss 0 -i /data/user/0/com.example.videoeditor/cache/LMS_1670500883503.mp4 -filter_complex drawtext="fontfile=/usr/share/fonts/truetype/freefont/FreeSans.ttf:text='Stack Overflow':fontcolor=white:fontsize=24:box=1:boxcolor=black@0.5:boxborderw=5:x=(w-text_w)/2:y=(h-text_h)/2" -t 7 -movflags faststart -strict experimental -vcodec mpeg4 -b:v 2097152 -b:a 48000 -ac 2 -ar 22050 /storage/emulated/0/Download/LMS_1670500883824.mp4


  


  but it gives me error

  


   Cannot find a valid font for the family Sans
Error initializing filter 'drawtext'
with args 'fontfile=/usr/share/fonts/truetype/freefont/FreeSans.ttf:text=Stack Overflow:fontcolor=white:fontsize=24:box=1:boxcolor=black@0.5:boxborderw=5:x=(w-text_w)/2:y=(h-text_h)/2'


  


  I'm using ubuntu OS.
And also is there any way to get font file from android studio assets folder ?

  


  Thanks in Advance !!

  


• I need assistance of making a automated script for ffmpeg [closed]

  18 décembre 2024, par user2614404

  Currently i use this script that GPT generated :

  


  ffmpeg -c:v av1_qsv -b:v 0 -global_quality 20 -preset veryslow -look_ahead 64 -c:a copy -c:s copy G:\1ARC-movies\A-View-to-a-kill.mkv -i Y:\media\Movies\A_VIEW_TO_A_KILL_t05.mkv

  


  But sadly GPT being gpt, it hallucinates answers, and none of it's deeper automation code scripts were working when it made the scripts for a .ps1 script file.

  


  And as i find most of the docs quite overwhelming, i need help to simplify what i need. As i learn best when i get explained what i currently try to do, and not every variable ffmpeg can do.

  


  what i want the script to do is :

  


  1 : convert movies with AV1_QSV with "veryslow", as that's apparently from what i've read up being the best it can do

  


  2 : Global quality as close to 50 as possible (smaller, the better), as 20-6 gave the same range of percentage of 97% VMAF score, 22 gave 95%, so 20 is the largest number i can go, as VMAF via NMKODER reported any higher number was sub 97%.

  


  3 : Give it a main folder for movies and shows to scan, and convert all the media in there to their respective subfolders to a designated output folder.

  


  2 : Automatic crop detection, as some crops it to a 21:9 ratio, others has very small letterboxes. As GPT's code for that attempt for some reason used cpu instead of arc's quicksync.

  


  As this will be ran from powershell, and it's to replace my plex library, by transcoding all movies and shows, starting with the least watched ones/shows that my family has seen, as then those will be unavailable for them until unraid 7 is out of beta to read intel arc for av1.

  


• pydub no ffprobe found

  21 septembre 2019, par Virgil Sisoe

  I have an app for MacOS that is compiled with py2app. The app uses the pydub module and the latter uses ffmpeg family package.

  The problem is that once I compile the app and move it to a different OS, the subprocess call from pydub fails to find any of the ffmpeg packages even though they are installed in /usr/local/bin.

  If I launch the app from terminal ./Nameapp.app/Contents/MacOs/Nameapp then it runs no problem, but if I launch it with double click then pydub complains not finding the packages and the app hangs where ffmpeg/ffprobe should do the work.

  I can see that pydub searches in the /usr/local/bin only if launched from terminal, otherwise no. If I add /usr/local/bin to PATH, pydub doesnt complain anymore that it doesnt find ffmpeg/ffprobe, but it still gives me an error for both ffmpeg and ffprobe : [Errno 2] No such file or directory:.

  If I hardcode the path pydub.AudioSegment.converter = "/usr/local/bin/ffmpeg", the app gives me only ffprobe error [Errno 2] No such file or directory:'ffprobe': 'ffprobe'.

  On some other posts i’ve seen pydub.AudioSegment.ffprobe = "/path/to/ffprobe" but it doesnt seem to work in my case ?

  So my two questions are :

  How to hardcode the ffprobe path in pydub ?
  How to solve this without hardcoding path ?