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• Efficient low latency stream forwarding in intel atom

  31 juillet 2017, par Sönke Felsing

  I have a certain problem in forwarding a stream from a web camera to my local network.

  My Network camera provides a RTP video stream 720p24 to NIC1 of my Gateway PC (Intel Atom, 1.8GHz , Ubuntu 16.04). Now I would like to forward this stream to all PCs (Intel i5, i7,...) which are connected to NIC2 of the Gateway PC.

  I tested already some stuff with ffmpeg and VLC. VLC does not even run the Video on the Atom due to Hardware limitatons and ffmpeg is just capable of 1-2fps at 480p, but ffserver works fine. MPlayer at least Shows the Video in all its beauty but does not support Streaming unfortunately.

  Does anybody know a well performing way to get access to the stream of the camera through the Gateway PC without directly connecting the two Networks ? Due to the fact that we would like to make some remote operations there may not be introduced any further latency for buffering, transcoding, ...

  If the Solutions uses multicast I would be happy.

  I really look forward to your responses !

• avformat/movenc : add write_clli flag to write clli atom

  28 mars 2020, par Michael Bradshaw

  avformat/movenc : add write_clli flag to write clli atom
  The clli atom isn't in ISO/IEC 14496-12:2015 so the flag is marked as
  
  experimental and the clli atom is not written by default.
  The clli atom is already parsed by FFmpeg in mov.c.
  Signed-off-by : Michael Bradshaw <mjbshaw@google.com>
  

  • [DH] libavformat/movenc.c
  • [DH] libavformat/movenc.h

• Post processing in ffmpeg to move 'moov atom' in MP4 files (qt-faststart)

  9 janvier 2023, par siliconpi

  Is it possible to run ffmpeg from the command line which will either place the 'moov atom' metadata in the beginning of the MP4 file or run the qt-faststart as a post processing operation in ffmpeg so the generated file is stream-able through the internet ?

  



  I can of course run it as a separate command, but would prefer it to be something

  



  

  • as an option within ffmpeg, or

  


  • as part of a post conversion, command line option when converting the video files via ffmpeg

  


  



  ---

  



  Edit 1

  



  http://ffmpeg.org/ffmpeg.html#mov

  



  


  MOV / MP4 muxer

  
 


  The muxer options are :

  
 


  ‘-moov_size bytes’

  



  Reserves space for the moov atom at the beginning of the file instead of 
placing the moov atom at the end. If the space reserved is insufficient, 
muxing will fail.