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• How do I make FFMPEG use localized strftime with drawtext ?

  3 décembre 2022, par Randy Michnovicz

  I'm trying to write a script to use FFMPEG to draw localized timestamps on a video, but I'm not having much luck.

  


  I can confirm I have the locale fr_FR.UTF-8 installed on my system by running the following command : LC_ALL=fr_FR.UTF-8 date

  


  However, the following command produces a 4 second video beginning with the string "Monday 28 November 2022 19:00:47 PST" on both my Mac and an Alpine Linux docker container :

  


  LC_ALL=fr_FR.UTF-8 ffmpeg -hide_banner -f lavfi -i color=size=1024x768:rate=25:color=black -c:v libx264 -c:a aac -filter_complex drawtext=expansion=normal:fontsize=18:fontcolor=white:box=1:boxcolor=black@0.5:text='%{pts\\:localtime\\:1669690847\\:%A %-d %B %Y %X %Z}' -t 4 -y out.mp4

  


  Does anyone know how to make it create strings with non-English text ?

  


• creating video from selected images using FFMPEG through command Line Android

  7 septembre 2016, par Raheel Mushtaq

  i am trying to make a video from selected images from command line using ffmpeg in android

  using this project as my source i m trying to make video

  this is the command i m trying to create video

     String[] ffmpegCommand = {ffmpegBin,
  
              "-y",
  
              "-qscale",
  
              "1",
  
              "-r", "" + frameRate,
  
              "-i", image1.getAbsolutePath(),
  
              "-t", "" + (((4) * 30) + 4), //"-s",heightwidth,
  
              "-i", image2.getAbsolutePath(),
  
              "-t", "" + (((4) * 30) + 4), //"-s",heightwidth,
  
              "-i", image3.getAbsolutePath(),
  
              "-t", "" + (((4) * 30) + 4), //"-s",heightwidth,
  
              "-i", image4.getAbsolutePath(),
  
              "-t", "" + (((4) * 30) + 4), //"-s",heightwidth,
  
              "-vcodec",
  
              "libx264",
  
              "-s",
  
              "640x480",
  
              outputFile.getAbsolutePath()};

  but the video created shows only 1st image and video is created of less than a second

  what is the problem in this statement ? and why only 1 image is shown in video ?

  sorry about my bad english

• NVIDIA Version Outdated Error when mine is updated

  21 février 2021, par Agent Merlot

  I'm trying to encode stuff with my NVIDIA GeForce MX150 (Driver Version : 461.09).

  


  import os
os.system(f'ffmpeg -i "Cells at Work Season 2 - Episode 07 - English Subbed.mp4" -c:a copy -c:v hevc_nvenc "07.mp4"')

  


  Whenever I'm trying to run it, I'm getting this error.

  


  [hevc_nvenc @ 0000017a8bdf7e40] Cannot load nvEncodeAPI64.dll
[hevc_nvenc @ 0000017a8bdf7e40] The minimum required Nvidia driver for nvenc is 436.15 or newer
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Conversion failed!

  


  What bugs me is that it says that I need 436.15 or newer, and mine is 461.09. That means it should work, right ? Can anyone help ?