Recherche avancée

Sur d’autres sites (10167)

• mjpegdec : parse JPS extension and save relevant stereo3d information

  29 janvier 2014, par Kirill Gavrilov

  mjpegdec : parse JPS extension and save relevant stereo3d information
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavcodec/mjpegdec.c
  • [DH] libavcodec/mjpegdec.h

• How can I save the downloaded and converted audios to a specific folder

  19 décembre 2022, par Retire Young

  I'm trying to download Videos from a specific playlist and converting it to a m4a file for further downloading. The process works perfectly but the files are being saved in the same folder where my Phyton script is located. I choose a specific Output Folder but the files don't appear there.
Any ways to save the files in the desired folder ?

  


  An error message reads as follows : "input.mp4: No such file or directory"
In my Code block, I censored the playlist link and the user name on the path. Just imagine a working playlist link instead. Thanks in advance !

  


  import os
import subprocess


  


  Replace with the URL of the YouTube playlist

  


  playlist_url = "PLAYLISTLINK"

  


  Set the output directory for the downloaded files

  


  output_dir = "/Users/USER/Documents/VideoBot/Output"

  


  Use youtube-dl to download the latest video in the playlist

  


  subprocess.run(["youtube-dl", "-f", "bestaudio[ext=m4a]", "--playlist-start", "1", "--playlist-end", "1", playlist_url])

  


  Extract the audio from the downloaded video using ffmpeg

  


  subprocess.run(["ffmpeg", "-i", "input.mp4", "-vn", "-acodec", "copy", "output.m4a"])

  


  Move the extracted audio file to the output directory

  


  os.rename("output.m4a", os.path.join(output_dir, "output.m4a"))

  


• ffmpeg : capture two screens simultaneously, save as two separate files

  9 janvier 2017, par wetjosh

  Is this possible ? Here is my working single file solution. How can I modify it to save two separate files instead ?

  ffmpeg \
  
  -f avfoundation -pix_fmt uyvy422 -s 1440x900 -i 1 \
  
  -f avfoundation -pix_fmt uyvy422 -s 1440x900 -i 2 \
  
  -pix_fmt yuv420p -r 30 -preset ultrafast -b:v 5000k -t 15 \
  
    -filter_complex \
  
      "nullsrc=size=2880x900 [background]; \
  
      [0:v] setpts=PTS-STARTPTS, scale=1440x900 [left]; \
  
      [1:v] setpts=PTS-STARTPTS, scale=1440x900 [right]; \
  
      [background][left] overlay=shortest=1 [background+left]; \
  
      [background+left][right] overlay=shortest=1:x=1440 [left+right]" \
  
    -map [left+right] out.mov

  I’ve tried removing the filter complex. I’ve tried adding two output files. I’ve tried various combinations of mapping. The following is the closest I’ve gotten to making it work. It creates two files, but both contain only the second stream (-i 2).

  ffmpeg \
  
  -f avfoundation -pix_fmt uyvy422 -s 1440x900 -i 1 \
  
  -f avfoundation -pix_fmt uyvy422 -s 1440x900 -i 2 \
  
  -pix_fmt yuv420p -r 30 -preset ultrafast -b:v 5000k -t 15 out1.mov \
  
  -pix_fmt yuv420p -r 30 -preset ultrafast -b:v 5000k -t 15 out2.mov