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• Combining zoompan slideshow with watermark overlay in FFMPEG

  2 avril 2020, par ricky_bobby43

  I've created a slideshow from a series of images with this

  



  ffmpeg -i img%d.jpg -vf zoompan=d=(7+1)/1:s=6144x3072:fps=1,framerate=25:interp_start=0:interp_end=255:scene=100 -c:v mpeg4 -q:v 2 out.mp4


  



  I have a semi-transparent watermark (inx.png) that I am applying for the first 3 seconds, but currenly using a separate command in FFMPEG :

  



  ffmpeg -i 6144out.mp4 -loop 1 -i inx.png -filter_complex "[1:v]format=argb,geq=r='r(X,Y)':a='0.5*alpha(X,Y)'[foo]; [foo]fade=out:st=3:d=1:alpha=1[bar], [0:v][bar]overlay" -vcodec libx264 output2.mp4


  



  Is there a way to combine the two ?

  


• mlp_parser : Drop in-parser downmix functionality

  26 avril 2017, par Vittorio Giovara

  mlp_parser : Drop in-parser downmix functionality
  request_channel_layout is a decoder option and it makes no sense
  
  to have it in a parser.
  This feature was needed in the past when the decoder was allowed
  
  to reuse the avctx from the demuxer. Nowadays the decoder receives
  
  only the parameters from it, already containing the real channel
  
  layout (and the correct request_channel_layout option).
  After initialization the decoder overwrites the channel layout
  
  with the downmixed one that is actually output, so there is no need
  
  to preserve this functionality in the parser.
  Signed-off-by : Vittorio Giovara <vittorio.giovara@gmail.com>
  

  • [DBH] libavcodec/mlp_parser.c
  • [DBH] libavcodec/mlp_parser.h
  • [DBH] libavcodec/mlpdec.c

• How to handle FFMPEG module missing probe inside docker ?

  2 avril 2021, par DarkFantasy

  I am AWARE of how to solve this problem of missing problem module with spleeter on WINDOWS. Here is the solution
https://github.com/deezer/spleeter/issues/101

  


  How can I achieve the same inside my docker container ? In my docker file, the FFMPEG is being installed but it is missing the probe module. This is a common problem but one that I don't know how to solve inside of Docker.

  


  I tried doing

  


  RUN apt-get install -y ffmpeg
RUN pip uninstall ffmpeg-python
RUN pip install -r requirements.txt


  


  in my docker file but didn't work. The thing is, it was all working until last night. Today morning, I am getting this error when I rebuilt my docker image. Any help is appreciated.