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• How can i forcing current frame to be encoded as intra frame using libavcodec

  14 avril 2021, par pensir

  I want to change gop dynamic to adapt to player. Smaller gop help for reduce first screen cost ; Big gop help to reduce bitrate to save bandwidth.

  


  I found nvenc has a function which can solve the problem above.
https://docs.nvidia.com/video-technologies/video-codec-sdk/nvenc-video-encoder-api-prog-guide/#forcing-current-frame-to-be-encoded-as-intra-frame

  


  But I'm using ffmpeg. Is there any similar function in ffmpeg ?

  


• Zoom and Moving based on audio information in FFMPEG

  19 décembre 2019, par Mattstir

  I recently wondered if it is possible to zoom or move things in FFMPEG based on an audio source.

  I already played around with complex filters as they allow some audio visualization but didn’t really manage to move/zoom things based on sound. See good examples of complex filters used for audio visualization at : https://hhsprings.bitbucket.io/docs/programming/examples/ffmpeg/audio_visualization/index.html

  My current situation is that i have multiple inputs which one of should react on sound/maybe even on special frequency’s.

• How do I get FFMPEG Progress in order to create a progress bar ?

  18 mai 2012, par polandeer

  I'm trying to create a simple GUI for ffmpeg but am having problems getting the progress of a command. I'm using PySide as the GUI toolkit and I'm also using python3. I'm using QProcess to run the command and would just like to be able to create a progress bar. The code can be found here : https://github.com/stephenmac7/ffpy/blob/master/ffpy.py

  Also, I'd like to be able to use the statusbar of the main window. Thank you.

  EDIT : Preferably I'd like to use QProgressDialog : http://www.pyside.org/docs/pyside/PySide/QtGui/QProgressDialog.html