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• Create stopmotion video with ffmpeg - error while rendering

  30 mai 2012, par Niklas

  I'm currently creating a stopmotion video with the help of ffmpeg and some scripts I've made. Although in the last clip I attempted to render I had a couple of frames which I've edited. The method I'm using has worked before so I'm certain that it has to do with GIMP changing something with the files. I work with .png-images. This is the command and the output I get :

  ffmpeg -sameq -f image2 -r 7 -i "$src_dir/frame-%06d.png" -r 25 "$dest_dir/$file_name.avi"

  output :

  ffmpeg version 0.8.1-4:0.8.1-0ubuntu1, Copyright (c) 2000-2011 the Libav developers
  
    built on Mar 22 2012 05:09:06 with gcc 4.6.3
  
  This program is not developed anymore and is only provided for compatibility. Use avconv instead (see Changelog for the list of incompatible changes).
  
  Input #0, image2, from '/mnt/storage/selected_frames/005-Middag-Animation/frame-%06d.png':
  
    Duration: 00:00:02.85, start: 0.000000, bitrate: N/A
  
      Stream #0.0: Video: png, bgra, 1280x720, 7 fps, 7 tbr, 7 tbn, 7 tbc
  
  File '/mnt/storage/Videoklipp//005-Middag-Animation.avi' already exists. Overwrite ? [y/N] y
  
  Incompatible pixel format 'bgra' for codec 'mpeg4', auto-selecting format 'yuv420p'
  
  [buffer @ 0x1b88860] w:1280 h:720 pixfmt:bgra
  
  [avsink @ 0x1b8a480] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
  
  [scale @ 0x1b8ab80] w:1280 h:720 fmt:bgra -> w:1280 h:720 fmt:yuv420p flags:0x4
  
  Output #0, avi, to '/mnt/storage/Videoklipp//005-Middag-Animation.avi':
  
    Metadata:
  
      ISFT            : Lavf53.21.0
  
      Stream #0.0: Video: mpeg4, yuv420p, 1280x720, q=2-31, 2 kb/s, 25 tbn, 25 tbc
  
  Stream mapping:
  
    Stream #0.0 -> #0.0
  
  Press ctrl-c to stop encoding
  
  [buffer @ 0x1b88860] Changing frame properties on the fly is not supported.
  
      Last message repeated 6 times
  
  frame=   13 fps=  0 q=0.0 Lsize=     524kB time=2.20 bitrate=1951.2kbits/s    
  
  video:517kB audio:0kB global headers:0kB muxing overhead 1.323318%

  "[buffer @ 0x1b88860] Changing frame properties on the fly is not supported"

  What can I do to fix this ? Any help is appreciated :)

• is it possible to use obs overlay on ffmpeg ?

  3 septembre 2023, par sazer kpla

  i know thats ffmpeg dosnt support obs overlay from an url but is there any workaround to do that , i can do that with puppeter but thats will increase the usage of resource ,and i have very limited plan free one XD with only 512mb of ram

  


  what is the best way to integrate animation from url (OBS overlay) in ffmpeg live stream

  


• rtmppkt : Repeat the full 32 bit timestamp for chunking continuation packets

  14 janvier 2015, par Martin Storsjö

  rtmppkt : Repeat the full 32 bit timestamp for chunking continuation packets
  This fixes sending chunked packets (packets larger than the output
  
  chunk size, which often can be e.g. 4096 bytes) with a timestamp delta
  
  (or absolute timstamp, if it’s a timestamp step backwards, or the
  
  first packet of the stream) larger than 0xffffffff.
  The RTMP spec explicitly says (in section 5.3.1.3.) that packets of
  
  type 3 (continuation packets) should include this field, if the
  
  previous non-continuation packet had it included.
  The receiving code handles these packets correctly.
  Pointed out by Cheolho Park.
  CC : libav-stable@libav.org
  
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DBH] libavformat/rtmppkt.c