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• ffmpeg Error : Pattern type 'glob' was selected but globbing is not support ed by this libavformat build

  14 septembre 2017, par Aryan Naim

  I’m trying to convert group of ".jpg" files acting as individual frames into 1 single mpeg video ".mp4"

  Example parameters i used :

  frame duration  = 2 secs
  
  frame rate      = 30  fps
  
  encoder         = libx264 (mpeg)
  
  input pattern   = "*.jpg"
  
  output pattern  = video.mp4

  Based on ffmpeg wiki instructions at (https://trac.ffmpeg.org/wiki/Create%20a%20video%20slideshow%20from%20images), I issued this command :

  ffmpeg -framerate 1/2 -pattern_type glob -i "*.jpg" -c:v libx264 -r 30 -pix_fmt yuv420p video.mp4

  But I’m getting this error :

  [image2 @ 049ab120] Pattern type 'glob' was selected but globbing is not 
  
  supported by this libavformat build *.jpg: Function not implemented

  Which probably means the API pattern matching commands for my build/version have changed. By the way this my windows 32bit ffmpeg download build (ffmpeg-20150702-git-03b2b40-win32-static).

  How can I choose a group of files using pattern matching using ffmpeg ?

• Still can't install pygame on ubuntu

  1er octobre 2016, par brotheroflogan

  I’ve tried three different ways. The most recent was following instructions here : http://www.pygame.org/wiki/CompileUbuntu

  But when I type in the first line

  sudo apt-get install mercurial python-dev python-numpy ffmpeg \

  I am told that

  E: Package 'ffmpeg' has no installation candidate.

  I continue on with the instructions and I am later told that some of the dependencies are missing (even though those are the ones I had attempted to install moments ago).

  Then when I put in

  sudo python3 setup.py install

  it tells me

  src/_pygame.h:80:20: fatal error: Python.h: No such file or directory
  
   #include 
  
                      ^
  
  compilation terminated.
  
  error: command 'i686-linux-gnu-gcc' failed with exit status 1

• ffmpeg concatenation of live streams with different codecs

  14 mai 2015, par ashishgupta_mca

  Great information is given on https://trac.ffmpeg.org/wiki/Concatenate of how to concat two files of different codecs and I tried option "Concat filter" for two files and it works as expected.

  I wish to have the concatenation of live streams from two webcams on timely basis. E.g. first camera live stream will be shown for 60 sec and then second camera live stream for 60 sec and then again first camera live stream for 60 sec.... Process continues

  This is to create concatenation on fly to reduce gaps between two streams switching.

  Is this possible by using ffmpeg concatenation ?

  Any direction will be much appreciated.

  Thanks a lot in advance.