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• bash : find truncates some paths [duplicate]

  17 novembre 2023, par fweber

  I'm using MacOS 13.0.1 and try to find + loop over .mov files to convert them to MP4 using FFMPEG. Many of my path contain spaces and special characters. I found a way of putting things together thanks to this post :

  


  function convert_to_mp4_then_rm() {
    while IFS= read -r -d '' file
    do
        ffmpeg -i "$file" "${file%.mov}.mp4"
    done < <(find /Users/f.weber/Downloads -type f -name "*.mov" -print0)
}


  


  This runs but I found a (random ?) error : it looks like some of the paths are truncated when they arrive to the ffmpeg CLI.

  


  Example to reproduce with a basic content :

  


  ll Downloads/
total 9472
-rw-r--r--  1 f.weber  staff   2,3M 26 sep 08:56 23-09-26 08-56-50-2538.mov
-rw-r--r--  1 f.weber  staff   2,3M 26 sep 08:56 23-09-26 08-56-50-2539.mov


  


  When I call convert_to_mp4_then_rm in a terminal, the first MOV file is properly processed then I have the following error from FFMPEG : /Downloads/23-09-26 08-56-50-2539.mov: No such file or directory. In some conditions (e.g. when the path is longer) the truncation is more obvious and can occur in the middle of a word.

  


  What is the explanation for this ? How to forward untruncated paths to my function's core ?

  


  Thanks !

  


• Background blur on concat videos make everything more blurry

  7 août 2020, par AlphaDjango

  Hi I have a bunch of temp video files that I want to concat together, some are different aspect ratios and resolutions so I want the end video to be a 1920x1080p with the empty space on the sides to be a box blur.

  


  I have it working how I want but the video clips in the middle become more blurry than the original temp files.
Could someone let me know if I can change the code to keep original quality ? It will also show it's dropping frames a few thousand in a 20 minute video which isn't terrible but I would prefer it to not drop frames.

  


  "ffmpeg -i "concat :" + python script adds all file locations + "" -s 1920x1080 -filter_complex [0:v]scale=ih16/9 :-1,boxblur=luma_radius=min(h,w)/20:luma_power=2:chroma_radius=min(cw,ch)/20:chroma_power=1[bg] ;[bg][0:v]overlay=(W-w)/2 :(H-h)/2,crop=h=iw9/16 -af aselect=concatdec_select,aresample=async=1 Rendered_Videos/output.mp4"

  


• Fix flv files that stop early

  19 octobre 2012, par Xonar

  I downloaded some flv videos some time ago and when watching them they stop at a point. If I skip past that point they continue playing fine up until another point which I can then skip past again (and the cycle goes on until the end of the video)

  I already tried

  avconv -i input.flv -acodec copy -vcodec copy -g 1 output.flv

  To my understanding from reading alot of mostly useless posts regarding this issue the there isn't any keyframes in my metadata and then stop when there is a bad frame.

  I tried setting -g higher but output.flv stops at the same point as where the original file stops for the first time. Is there any tool that can fix this.

  I can't remember where the original links are located and re-downloading isn't a option and as you can see my re-encoding attempts has failed.

  I am using Linux Ubuntu, so I can't use the Windows tools that are available.