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• sh4 : remove architecture

  7 juin 2024, par Rémi Denis-Courmont

  sh4 : remove architecture
  Support for SuperH was dropped over a decade ago. There no longer is any
  
  architecture-specific code to be found, so just remove the corresponding
  
  test. Technically it is still possible to compile FFmpeg as the
  
  "generic" (pure C) architecture.
  

  • [DH] configure
  • [DH] libavcodec/sh4/README

• Output file not specified [closed]

  16 mai 2024, par Rich Madrid

  I have been messing around with ffmpeg working on basic mkv to mp4 conversions the last couple of days on my Mac and Windows computers. Mac was easier buy my windows desktop has a much faster OS so I wanted to do some conversions on it tonight. Got ffmpeg installed and working.

  


  After having some issues with the command prompt not finding the directory, I solved that with the following basic code to convert an mkv file to an mp4 for me :

  


  ffmpeg -i "C:\Users\Computer\videos\decade.mkv" "C:\Users\Computer\Videos\RJ videos\Complete\decade.mp4"


  


  I moved on to wanting to scale up an mkv to 1080p and use a yadif filter. I couldn’t find an adequate way to do this so I used a portion of the command that worked on my Mac last night, and stuffed it into the command for windows and I got an error code “at least one output file must be specified” after using the following command :

  


  ffmpeg -i "C:\Users\Computer\videos\decade.mkv" -vf "yadif=1,scale=1440x1080:flags=lanczos,setsar=1" -c:v libx264 -crf 21
-c:a aac -b:a 128k -ar 48k "C:\Users\Computer\Videos\RJ videos\Complete\decade.mp4"


  


  What am I doing wrong ?

  


• How to clone last frame when using overlay in ffmpeg ? [closed]

  6 mai 2024, par mikezang

  I use this code to slide previous and next pages up, this is no problems, can I remove png file 1970～1979-last.png and use the last frame of video file 1970～1979.mp4 to instead it ?

  


  script-01.txt

  


  color=white:864x504[c];
[0:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504:-1:-1,setsar=1[s0];
[1:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504:-1:-1,setsar=1[s1];
[c][s0]overlay=y=0-h*t[c];
[c][s1]overlay=y='if(between(t,0,18),max(H-h*t,0),max(0-h*(t-18),0-H))'[v],
[v]tpad=stop_mode=clone:stop_duration=10[s2];
[s2]drawtext=fontfile='/WINDOWS/Fonts/Arial.ttf':text='%{eif\:18-t\:d}':
box=1:boxborderw=10:boxcolor=orange@0.4:
x=w-tw-10:y=10:fontsize=24:fontcolor=red:enable='between(t,8,18)';


  


  script-01.bat

  


  ffmpeg -hide_banner -loglevel fatal ^
    -loop 1 -i "C:\myimages\1970～1979-last.png" ^
    -i "C:\myvideos\years\1980～1989.mp4" ^
    -filter_complex_script script-01.txt ^
    -t 18 -y v01.mp4


  


  I got it what I only need video files and capture last frame by pipe line to next step, so that the last frame image never neede ! Though the first slide has little problem when countdown finished !

  


  script-01.bat

  


  ffmpeg -hide_banner -loglevel fatal ^
    -sseof -0.03 -i "C:\myvideos\years\1970～1979.mp4" ^
    -vframes 1 -c:v png -f image2pipe - | ffmpeg  ^
    -hide_banner -loglevel fatal -i - ^
    -i "C:\myvideos\years\1980～1989.mp4" ^
    -filter_complex_script script-01.txt ^
    -t 18 -y v01.mp4