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• avcodec/movtextdec : Simplify finding default font

  17 octobre 2020, par Andreas Rheinhardt

  avcodec/movtextdec : Simplify finding default font
  There is no need to walk through the list of fonts twice.
  Reviewed-by : Philip Langdale <philipl@overt.org>
  
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
  

  • [DH] libavcodec/movtextdec.c

• Converting mkv files to mp4 with ffmpeg-python [closed]

  22 août, par myth0s

  I have a lot of .mkv files that I'm trying to convert to .mp4, so I decided to try and program a solution in python. After a few hours, trying to figure out how to copy the subfolders too, I gave up on it and decided to stick with converting individual subfolders, and then copying them over to another directory.

  


  I've made a simple script, that should convert .mkv files that are in the same folder as the script. However, I keep getting this error :

  


  


  FileNotFoundError : [WinError 2] The system cannot find the file specified

  


  


  Here's my code :

  


  import os
import ffmpeg

start_dir = os.getcwd()

def convert_to_mp4(mkv_file):
    no_extension = str(os.path.splitext(mkv_file))
    with_mp4 = no_extension + ".mp4"
    ffmpeg.input(mkv_file).output(with_mp4).run()
    print("Finished converting {}".format(no_extension))

for path, folder, files in os.walk(start_dir):
    for file in files:
        if file.endswith('.mkv'):
            print("Found file: %s" % file)
            convert_to_mp4(file)
        else:
            pass



  


• ffmpeg jpg batch script with timestamp

  3 juillet 2021, par Chris

  I currently have this batch script using ffmpeg to scale images and place in a new location with the same folder structure. How do i include the timestamp from the original jpg file in the filename of the new scaled jpg file ?

  


  This gives files named m-H-S_IMG_0305

  


  @echo off &setlocal
set /a nfile=0
echo Copying directory structure from %1 to %2 ...
xcopy /T "%~1" "%~2"
REM walk directory structure and convert each file in quiet mode
set "sourcefolder=%~1"
set "targetfolder=%~2"
for /R "%sourcefolder%" %%a in (*.JPG) do (
    echo converting "%%~nxa" ...
    set "sourcefile=%%~fa"
    set "sourcepath=%%~dpa"
    set "targetfile=%%~na.JPG"
    setlocal enabledelayedexpansion
    set "targetfolder=%targetfolder%!sourcepath:%sourcefolder%=!"
    ffmpeg -v quiet -i "!sourcefile!" -vf scale=256x256 -q:v 1 -strftime 1 "!targetfolder!%Y-%m-%d_%H-%M-%S_!targetfile!"
    endlocal
    set /A nfile+=1
)
echo Done! Converted %nfile% file(s)


  


  Working version for file modify date :

  


  @echo off &setlocal
set /a nfile=0
echo Copying directory structure from %1 to %2 ...
xcopy /T "%~1" "%~2"
REM walk directory structure and convert each file in quiet mode
set "sourcefolder=%~1"
set "targetfolder=%~2"
for /R "%sourcefolder%" %%a in (*.JPG) do (
    echo converting "%%~nxa" ...
    echo which has a timestamp of "%%~ta" ...
    set "sourcefile=%%~fa"
    set "sourcepath=%%~dpa"
    set "targetfile=%%~na.JPG"
    set "timestamp=%%~ta"
    setlocal enabledelayedexpansion
    set "timestamp=!timestamp: =_!"
    set "timestamp=!timestamp::=-!"
    set "timestamp=!timestamp:/=-!"
    set "targetfolder=%targetfolder%!sourcepath:%sourcefolder%=!"
    ffmpeg -v quiet -i "!sourcefile!" -vf scale=256x256 -q:v 1 "!targetfolder!!timestamp!_!targetfile!"
    endlocal
    set /A nfile+=1
)
echo Done! Converted %nfile% file(s)


  


  File Creation date option attempt using exiftool (This works but it stops frequently so there is an error somewhere) :

  


  @echo off &setlocal
set /a nfile=0
echo Copying directory structure from %1 to %2 ...
xcopy /T "%~1" "%~2"
REM walk directory structure and convert each file in quiet mode
set "sourcefolder=%~1"
set "targetfolder=%~2"
for /R "%sourcefolder%" %%a in (*.JPG) do (
    echo converting "%%~nxa" ...
    echo which has a timestamp of "%%~ta" ...
    set "sourcefile=%%~fa"
    set "sourcepath=%%~dpa"
    set "targetfile=%%~na.JPG"
    set "timestamp=('exiftool -d %%Y%%m%%d_%%H%%M%%S -CreateDate %%~a')"
    for /f "tokens=1,2 delims=x" %%a in ('exiftool -T -d %%Y%%m%%d_%%H%%M%%S -CreateDate "%%a"') do (
        set "timestamp=%%a"
    )
    setlocal enabledelayedexpansion
    set "targetfolder=%targetfolder%!sourcepath:%sourcefolder%=!"
    ffmpeg -v quiet -i "!sourcefile!" -vf scale=256x256 -q:v 1 "!targetfolder!!timestamp!_!targetfile!"
    endlocal
    set /A nfile+=1
)
echo Done! Converted %nfile% file(s)