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• lavc/libaribcaption : add MSZ character related options

  17 octobre 2023, par TADANO Tokumei

  lavc/libaribcaption : add MSZ character related options
  This patch adds two MSZ (Middle Size ; half width) character
  
  related options, mapping against newly added upstream
  
  functionality :
  * `replace_msz_japanese`, which was introduced in version 1.0.1
  
    of libaribcaption.
  
  * `replace_msz_glyph`, which was introduced in version 1.1.0
  
    of libaribcaption.
  The latter option improves bitmap type rendering if specified
  
  fonts contain half-width glyphs (e.g., BIZ UDGothic), even
  
  if both ASCII and Japanese MSZ replacement options are set
  
  to false.
  As these options require newer versions of libaribcaption, the
  
  configure requirement has been bumped accordingly.
  Signed-off-by : TADANO Tokumei <aimingoff@pc.nifty.jp>
  

  • [DH] configure
  • [DH] doc/decoders.texi
  • [DH] libavcodec/libaribcaption.c
  • [DH] libavcodec/version.h

• Guidance on Implementing Custom Designs and Background Effects for Videos [closed]

  23 septembre 2023, par Joel Smith

  I am currently developing a web application that allows users to upload videos on the frontend. The primary goal of my project is to enable users to add custom designs to their videos and apply background effects. I'm using Python for the backend to handle video processing.

  


  I'm seeking advice on the appropriate technologies, libraries, or approaches to achieve the following :

  


  

  1. Custom Designs : I want to provide users with the ability to overlay custom graphics or text onto their videos. What Python libraries or tools can I use to achieve this ? Are there any best practices for adding graphics and text to videos dynamically ?

  


  2. Background Effects : I need to implement the feature to add background effects to uploaded videos. How can I achieve this, and what are the recommended methods or libraries for background replacement or manipulation ?

  


  3. Shadow Effects : Additionally, I want to enhance the visual appeal of the videos by adding shadow effects to elements like text or custom designs. What techniques or tools should I explore to achieve this effect ?
4.Combining Videos : To apply background effects, I need to merge the uploaded video with a background video or image seamlessly. What is the best approach to combine videos and maintain video quality during the process ?

  


  


  I have already implemented the frontend video upload to the backend and would appreciate any insights, code examples, or recommendations that can help me achieve these features effectively.

  


• lavf : deprecate AVFMT_FLAG_SHORTEST

  29 août 2023, par Anton Khirnov

  lavf : deprecate AVFMT_FLAG_SHORTEST
  It was added in cb114ed4640 with the comment
  
  "This will allow fixing several bugs with the -shortest option".
  Since
  
  * there is no explanation of what these bugs are
  
  * libavformat is not the place to work around ffmpeg CLI bugs
  
  * there is no indication that this feature is actually in use
  
  deprecate it without replacement.
  

  • [DH] doc/APIchanges
  • [DH] libavformat/avformat.h
  • [DH] libavformat/internal.h
  • [DH] libavformat/mux.c
  • [DH] libavformat/options.c
  • [DH] libavformat/options_table.h
  • [DH] libavformat/version_major.h