Recherche avancée

Sur d’autres sites (6380)

• ftp: fix flush control connection input

  2 juin 2013, par Lukasz Marek

  ftp: fix flush control connection input
  Signed-off-by : Lukasz Marek <lukasz.m.luki@gmail.com>
  

  • [DH] libavformat/ftp.c

• Make VP9 encoding faster with the best possible quality without picture freezing

  24 décembre 2017, par kostya572

  I am using this code to combine 2 files together (overlay file over original file) :

  ffmpeg -r 60 \
  
          -i originalfile.webm -i overlayfile.mov \
  
          -filter_complex " \
  
              [0:v]setpts=PTS-STARTPTS[base]; \
  
              [1:v]setpts=PTS-STARTPTS+0.5/TB, \
  
                   format=yuva420p,colorchannelmixer=aa=0.7[overlay]; \
  
               [base][overlay]overlay=x=(W-w)/2:y=0[v]" -map "[v]" -map 0:a -c:a copy -c:v libvpx-vp9 -lossless 1 -threads 4 -quality realtime -speed 8 -tile-columns 6 -frame-parallel 1 -vsync 1 -shortest resultfile.webm

  Encoding speed is not bad and quality output also, but after some time video picture could freeze for several seconds, then again it plays ok and then again could freeze.

  How could I optimize this code to make fast speed with the highest possible quality as original file without picture freezing ?

  Thank you

• How to loop through my text file and call the name of picture

  18 août 2022, par Ionut Bejinariu

  I need to take all audio files from a directory, and export them along with one of multiple pictures listed in a text file.

  


  It's working to take all the audio files one by one, but I cannot make it have a different picture for each video. I have same picture all the time.

  


  

  1. I don't know how to make the loop working for the pictures files.

  


  2. Will be nice if someone can tell me how I can group pictures in order to export as a slideshow.

  


  


  Thank you.

  


  In .txt file my pictures are like this :

  


  1.jpg
2.jpg
3.jpg


  


  And my code looks like this :

  


  @echo off
set "sourcedir=E:\test slideshow imagini"  
set "outputdir=E:\test slideshow imagini\1" 
PUSHD "%sourcedir%"
for /F "tokens=*" %%A in (poze3.txt) do (
    echo %%A
    :: pictures names
     for %%F in (*.wav *.mp3) DO ffmpeg -loop 1 -i %%A -i "%%F" -c:v libx264 -tune stillimage -c:a aac -b:a 192k -pix_fmt yuv420p -shortest -vf scale=1920:1080 "%outputdir%\%%F.mp4" 
    POPD
)