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• Show Filename in Video ffmpeg batch script

  19 mars 2019, par Oli Shingfield

  I have a folder with around 10 different mov files. I would like to add the filename as text on each of the videos using ffmpeg in a bat file. Could someone help me achieve this please ?

  EDIT :

  I have tried using

  @ECHO OFF&Setlocal EnableDelayedExpansion
  
  Set INPUT=E:\\Users\\Oli\\Documents\\Projects\\v1.3.0\\downloads3
  
  Set OUTPUT=E:\\Users\\Oli\\Documents\\Projects\\v1.3.0\\downloads3
  
  for %%a in ("%INPUT%\*.*") DO ( 
  
      set "filename=%%~na"
  
      ffmpeg -i "%%a" -vf "drawtext=text=!fileName:.= !:x=105:y=120:fontfile=E:\\Users\\Oli\\Documents\\Projects\\v1.3.0\\downloads3\\impact.ttf:fontsize=25:fontcolor=white" -b:v 1M -r 60 -b:a 320k -ar 48000 -crf 17 "%%~na.mov"
  
  )`

  But it gives me the error :

   Cannot find a valid font for the family Sans
  
  [AVFilterGraph @ 0000026eb75a9f40] Error initializing filter 'drawtext' with args 'text=FileName1'
  
  Error reinitializing filters!
  
  Failed to inject frame into filter network: No such file or directory
  
  Error while processing the decoded data for stream #0:0

• List Directory of files to text file sorted by creation date but don't show creation creation date in file

  25 mars 2019, par Oli Shingfield

  I’ve been doing some research on this problem but I can’t get my head around it to suit my particular issue.

  I would like to create a text file of a list of files in a directory, sorted by date but I don’t want the date to be shown in the file.
  The code I have so far is :

  #create list of clips to merge
  
  save_path = 'downloads/'
  
  ignored = 'test.bat','mergeclips.bat','draw.bat'
  
  onlyfiles = [f for f in listdir('downloads/') if isfile(join('downloads/', f)) if f not in ignored]
  
  
  
  with open('downloads/clipstomerge.txt', 'w') as f:
  
      for item in onlyfiles:
  
          f.write("file '%s'\n" % item )

  This code ignores the bat files but lists everything else out to a text file in a format ready for ffmpeg to merge the clips. The format of the text file looks like this :

  file 'ARandomClipName.mov'
  
  file 'Butterflies.mov'
  
  file 'Chickens.mov'

  At the moment the files are sorted alphabetically but I would like it to be sorted by creation date.
  Does anyone have any ideas how I could modify my code to fix my problem ?

• libavdevice/gdigrab : fix ffmpeg -devices doesn't show gdigrab

  17 mai 2019, par Jun Zhao

  libavdevice/gdigrab : fix ffmpeg -devices doesn't show gdigrab
  missed the category AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT lead to
  
  ffmpeg -devices doesn't show gdigrab as a input device
  FIx #7848
  Found-by : dangibson
  
  Reviewed-by : Paul B Mahol <onemda@gmail.com>
  
  Signed-off-by : Jun Zhao <barryjzhao@tencent.com>
  

  • [DH] libavdevice/gdigrab.c