Recherche avancée

Sur d’autres sites (4199)

• How to replace the text in the filename and move the file to different directory

  2 octobre 2019, par Hugo Shih

  I’m a newbie to this bash scripting and I’m writing a script with ffmpeg to help my production more efficient. I think I put two questions at once and hope it won’t be confused :

  Here is my script :

  #!/bin/bash
  
  
  
  for file in *.mov
  
  do
  
    ffmpeg  -probesize 50M -analyzeduration 100M -ss 00:00:10.00 -i "$file" -map 0:0 -map 0:1 - 
  
    c:a aac_at -ab 256k -ar 48000 -ac 2 -strict -2 -async 1 -c:v libx264 -crf 20 -r 24000/1001 
  
    -s 1920x1080 -aspect 16:9 -pix_fmt yuv420p -preset fast -partitions 
  
    partb8x8+partp4x4+partp8x8+parti8x8 -b-pyramid 1 -weightb 1 -8x8dct 1 -fast-pskip 1 - 
  
    direct-pred 1 -coder ac -trellis 1 -motion-est hex -subq 6 -me_range 16 -bf 3 -b_strategy 1 
  
    -sc_threshold 40 -keyint_min 24 -g 48 -qmin 3 -qmax 51 -qdiff 4 -metadata creation_time=now 
  
    -sn -t 00:01:00.02 -y "${file%.*}_H264_1080".mov
  
  done

  Basically what I’m tyring to do is taking a "Movie_ProRes_1080.mov" file and make it as a H264 and rename it as "Movie_H264_1080.mov". The way I work around is Export the file as "Movie" and let it added behind which is really not what I want because I need to export another file to fit this purpose. The main goal is I can use the "Movie_ProRes_1080.mov" convert it to "Movie_H264_1080".

  Also, from the script, it rendered out to the same location. Would it be possible to render to a different directory ? Like source at /Users/editor/source, but render out at /Users/editor/output.

• How can I convert a regular WAV file to a 4bit WAV file using ffmpeg ?

  17 février 2020, par Florin Mircea

  I have tried something along the lines of

  C :\ffmpeg\ffmpeg -i "Blip_Select2.wav" -c:a wav -sample_fmt u8 "Blip_Select2_8bit.wav"

  but I cannot figure out how to access a 4bit conversion.

  I am using the audio for a c# project, 4 bit is sufficient and I prefer wav so I won’t have to distribute a possibly restricted usage decoder with my files.

  Edit. I have found a solution using a different software (see my answer below), but I am accepting Mattias’s answer as he provided the solution as asked, with ffmpeg.

• How to make ffmeg automatically overwrite a file with the same name in python ?

  27 janvier 2021, par tkinterpy

  I have a script that downloads audio and video from a Youtube link,
Then ffmpeg merges them together, but if I want to merge again, it will output
a file with the same name, and it will ask me in the terminal


  


  how can I make it so it automatically overwrites ?