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• Fatal Python error : could not acquire lock for at interpreter shutdown, possibly due to daemon threads

  3 octobre 2019, par JavNoor

  Running the following :

  import imageio
  
  
  
  class vidrdf:
  
      def __init__(self, vidfile):
  
          self.vid = imageio.get_reader(vidfile,  'ffmpeg')
  
  
  
  vidfile = 'movie.mov'
  
  rdfobj = vidrdf(vidfile)

  I get :

  Fatal Python error: could not acquire lock for <_io.BufferedReader name=8> at interpreter shutdown, possibly due to daemon threads
  
  
  
  Thread 0x00007fd2dc2a8700 (most recent call first):
  
    File “/path/miniconda3/envs/flower/lib/python3.7/site-packages/imageio_ffmpeg/_parsing.py", line 61 in run
  
    File "miniconda3/envs/flower/lib/python3.7/threading.py", line 926 in _bootstrap_inner
  
    File “/path/miniconda3/envs/flower/lib/python3.7/threading.py", line 890 in _bootstrap
  
  
  
  Current thread 0x00007fd2f0bb9700 (most recent call first):
  
    File “/path/miniconda3/envs/flower/lib/python3.7/subprocess.py", line 1704 in _communicate
  
    File “/path/miniconda3/envs/flower/lib/python3.7/subprocess.py", line 939 in communicate
  
    File “/path/miniconda3/envs/flower/lib/python3.7/site-packages/imageio_ffmpeg/_io.py", line 193 in read_frames
  
    File “/path/miniconda3/envs/flower/lib/python3.7/site-packages/imageio/plugins/ffmpeg.py", line 342 in _close
  
    File “/path/miniconda3/envs/flower/lib/python3.7/site-packages/imageio/core/format.py", line 252 in close
  
    File “/path/miniconda3/envs/flower/lib/python3.7/site-packages/imageio/core/format.py", line 241 in __del__
  
  Aborted (core dumped)

  It doesn’t happen if I try :

  import imageio
  
  
  
  class vidrdf:
  
      def __init__(self, vidfile):
  
          self.vid = imageio.get_reader(vidfile,  'ffmpeg')
  
  
  
  vidfile = 'movie.mov'
  
  vidrdf(vidfile)

  or

  import imageio
  
  
  
  class vidrdf:
  
      def __init__(self, vidfile):
  
          vid = imageio.get_reader(vidfile,  'ffmpeg')
  
  
  
  vidfile = 'movie.mov'
  
  rdfobj = vidrdf(vidfile)

  So this is clearly an issue with copying the object. I’ve searched about daemon threads, but since I’m using imageio directly I can’t figure out why and how to resolve it. I would appreciate any recommendations.

• FFmpeg - Check if folder contains a matching filename with 2 different extensions and ignore both files. Process only filenames with 1 extension

  9 septembre 2019, par slyfox1186

  I need to batch convert all mkv files in a folder recursively to mp4.

  If a filename exists and matches both extensions, ignore both files and process only filenames that contain mkv, without matching mp4.

  Example : cat.mkv exists in folder with cat.mp4 = ignore both files

  Example : cat.mkv exists in folder and cat.mp4 does not = process cat.mkv to cat.mp4

  I have included a script that doesn’t work well. It processes all mkv files and mp4 files. The mp4 files throw an error as FFmpeg will not encode the same format in this manner over itself.

  As always thank you to anyone who might have a few ideas.

  UPDATE : I may have gotten it to work. I changed a few things from the original. If anyone has success or an idea to improve I’m all ears. Thanks.

  VERSION 2

  @ECHO ON
  
  SETLOCAL
  
  PROMPT $G
  
  COLOR 0A
  
  
  
  REM Set FFmpeg.exe location if not in system PATH already
  
  SET FF=C:\MAB\local64\bin-video\ffmpeg.exe
  
  
  
  REM Set MKV files root folder to recursively search
  
  SET "mkvPATH=C:\Encoding\1_Original\Test\"
  
  
  
  REM Change into mkvPATH DIR
  
  CD "C:\Encoding\1_Original\Test"
  
  
  
  REM Set temp file name
  
  SET TEMPFILE=convert_mkv.bat
  
  
  
  REM Create empty convert file
  
  COPY NUL "%TEMPFILE%" >NUL 2>&1
  
  
  
  REM ADD @ECHO OFF to top of blank convert_mkv.bat script
  
  ECHO @ECHO OFF >>"%TEMPFILE%"
  
  
  
  REM Recursively search MKV root folder
  
  FOR /R "%mkvPATH%" %%G IN (*.mkv *.mp4) DO (
  
      SET "GPATH=%%~fG"
  
      SET "GNAME=%%~nG"
  
      SETLOCAL ENABLEDELAYEDEXPANSION
  
  
  
      REM Ignore all files that have both
  
      REM extensions ".mkv" and ".mp4" in the file name
  
      IF "%%~nG.mkv"=="%%~nG.mkv" (
  
          IF NOT EXIST "%%~nG.mp4" (
  
              CALL :DO_FFmpeg "!GPATH!"
  
              IF "%%~nG.mkv"=="%%~nG.mkv" (
  
                  IF EXIST "%%~nG.mp4" (
  
                      ECHO(>>"%TEMPFILE%"
  
                  ) ELSE ENDLOCAL
  
              )
  
          )
  
      )
  
  )
  
  GOTO END
  
  
  
  REM CALL variables for use in FFmpeg's command line
  
  :DO_FFmpeg
  
  IF "%~1"=="" GOTO :END
  
  FOR %%I IN ("%~1") DO (
  
      SET "FOLDER=%%~dpI"
  
      SET "NAME=%%~nxI"
  
  )
  
  
  
  REM Export info to "%TEMPFILE% and RUN ffmpeg.exe's command line in the cmd.exe window
  
  ECHO %FF% -y -i "%~1" -ss 0 -t 300 -codec copy "%FOLDER%%~n1.mp4">>"%TEMPFILE%" && %FF% | %FF% -y -i "%~1" -ss 600 -t 30 -codec copy "%FOLDER%%~n1.mp4"
  
  
  
  :END
  
  PAUSE
  
  EXIT /B

• Révision 24333 : Extension des filtres |image_xx aux images SVG :

  18 juillet 2019, par cerdic -

  la fonction _image_valeurs_trans() prend un argument supplementaire $support_svg par defaut a false
  - si le filtre appelant ne passe pas le flag a true pour dire qu’il sait traiter les SVG, _image_valeurs_trans() appelle la fonction par defaut process_image_svg_identite() qui fait une simpe copie sous le nouveau nom et renvoie creer=false au filtre appelant qui ne fera rien
  - si le filtre appelant passe le flag a true, il prend en charge les SVG, tout va bien

  De cette maniere les redacteurs peuvent utiliser des images SVG dans leur contenu sans risquer de casser les squelettes
  (les filtres non supportes ne feront rien, l’image etant conservee telle quelle)

  + ajout du support de SVG sur _image_creer_vignette() et par suite a |image_reduire et |image_passe_partout
  ce qui permet d’afficher les vignettes des SVG dans l’espace prive