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• lavf : make avio_read_partial() public

  17 août 2017, par wm4

  lavf : make avio_read_partial() public
  Main use-case is proxying avio through a foreign I/O layer and a custom
  
  AVIO context, without losing latency and performance characteristics.
  Signed-off-by : Luca Barbato <lu_zero@gentoo.org>
  

  • [DBH] doc/APIchanges
  • [DBH] libavformat/avio.h
  • [DBH] libavformat/avio_internal.h
  • [DBH] libavformat/aviobuf.c
  • [DBH] libavformat/rawdec.c
  • [DBH] libavformat/rtsp.c
  • [DBH] libavformat/version.h

• Why does ffmpeg.exe started from Windows batch file close immediately without waiting for user input ?

  12 juin 2017, par user2566350

  I searched google for an hour but I could not find anything to fix my issue. I found only "similar" fixes for problems I’m not having.

  I am opening ffmpeg.exe from a batch file that only has ffmpeg.exe with no arguments in it and it doesn’t work even though it did few hours ago.

  If I open command line from the folder and enter ffmpeg.exe it works because it’s not closing ffmpeg but waits for my input which is exactly how the batch file worked before.

  What could be the issue ?

  I have not changed the batch file or ffmpeg one or their locations.

  Running on Windows 7 x64 if that matters.

  Edit : File name is start ffmpeg.bat. It’s content is only ffmpeg.exe which used to work. I also tried start ffmpeg.exe and ffmpeg and changed the filename to 1.bat and 1.cmd but neither worked.

  Edit2 : Sorry i can’t explain myself better my english isn’t very good, however I will try to explain using these images :

  
  This is what i get if i run CMD from the desktop and enter ffmpeg.exe

  
  This is what I get when i run the batch file (after i added pause)
  Batch contents : 1st line=ffmpeg.exe, 2nd line=pause.

  As you can see without the pause ffmpeg will terminate and not remain on the screen like the in first image.

  I tried renaming the file and I tried to run it as admin but neither worked, Any suggestion why is it suddenly not running as it did yesterday ?

• ffprobe : IGMP membership packet doesn't include source when localaddr is set to the non-default GW interface [closed]

  28 août 2023, par Chu N

  On a Ubuntu 18.04.6 LTS box with 2 interfaces e.g. eno1 (10.1.1.1/24), eno2 (10.2.2.2/24). The default route goes out eno1, however I need to send SSM membership reports via eno2 to join a multicast S,G stream on 232.0.0.5 sourced from 10.5.5.5.

  


  ffprobe version 3.4.11-0ubuntu0.1

  


  When I input the command :
ffprobe udp ://232.0.0.5:8000 ?localaddr=10.2.2.2&sources=10.5.5.5

  


  The outgoing IGMPv3 packet leaves via eno2 but it does NOT include the Source Address in the membership report group record field as observed on Wireshark.

  


  When I input the command to go out via eno1 :
ffprobe udp ://232.0.0.5:8000 ?sources=10.5.5.5
or
ffprobe udp ://232.0.0.5:8000 ?localaddr=10.1.1.1&sources=10.5.5.5

  


  The outgoing IGMPv3 packet leaves via the default GW eno1 and includes the Source Address in the IGMPv3 membership report group record field as observed on Wireshark.

  


  How do I make ffprobe include the Source Address in the IGMPv3 packet when using an interface that's not the default gateway ?

  


  I tried different formats of the UDP URL.
When I put the sources before localaddr(10.2.2.2), the IGMPv3 packet goes out via the default gateway (10.1.1.1).
I tried using a routing-policy on netplan to do some source routing under the eno2 stanza but it didn't work.