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• libavformat : add side_data copy in concat demuxer

  15 décembre 2021, par Gerard Sole

  libavformat : add side_data copy in concat demuxer
  Adds support for concat demuxer to copy the side data information
  
  from the input file to the resulting file. It will behave like the
  
  metadata copy, where the metadata of the first file is kept in the
  
  the output file.
  Extract the current code that already performs the stream side_data
  
  copy into a separate method and reuse the method in the concat demuxer.
  Signed-off-by : Gerard Sole <g.sole.ca@gmail.com>
  

  • [DH] libavformat/concatdec.c
  • [DH] libavformat/internal.h
  • [DH] libavformat/utils.c
  • [DH] tests/ref/fate/concat-demuxer-extended-lavf-mxf
  • [DH] tests/ref/fate/concat-demuxer-extended-lavf-mxf_d10
  • [DH] tests/ref/fate/concat-demuxer-simple1-lavf-mxf
  • [DH] tests/ref/fate/concat-demuxer-simple1-lavf-mxf_d10
  • [DH] tests/ref/fate/concat-demuxer-simple2-lavf-ts

• http: Fix authentication, broken since 6a463e7fb

  13 août 2014, par Martin Storsjö

  http: Fix authentication, broken since 6a463e7fb
  The cur_*auth_type variables were set before the http_connect call
  
  prior to 6a463e7fb - their sole purpose is to record the
  
  authentication type used to do the latest request, since parsing
  
  the http response sets the new type in the auth state.
  CC : libav-stable@libav.org
  
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DBH] libavformat/http.c

• Handling multiple line subtitles of Right aligned languages(arabic) in Moviepy

  24 décembre 2023, par Stanger Danger

  I am trying to add Arabic subtitles on a video using Moviepy. The issue I'm facing is related to alignment of Arabic text, as it progresses from right to left, instead of left to right in English language.

  


  

  


  As text length gets more and more, Moviepy trims the words from both ends, this issue can be resolved if we break the text into multiple lines. This works well for English language but for Arabic, the first line becomes the last line because of the (Right-Left)alignment.

  


  

  


  The text on Second line should come first on the first line at the start, while end chuck of first text towards the left corner should render on the second line, but it is getting rendered as English language, Left to right alignment.

  


  Here is my code :

  


  def add_subtitles(address_subtitles, address_video):
  video = VideoFileClip(address_video)
  generator = lambda txt: TextClip(txt, font='Arial', fontsize=22, color='black', stroke_width=2, method='caption', align='south', size=video.size)
  subtitles = SubtitlesClip(address_subtitles, generator)
  #print()

  result = CompositeVideoClip([video, subtitles.set_pos(('center','bottom'))])
  result.write_videofile("arabic_with_hardcoded_subtitles_3.mp4", fps=video.fps, temp_audiofile="temp-audio.m4a", remove_temp=True, codec="libx264"
  , audio_codec="aac")