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• avformat/hls : enable http_multiple only for http/1.1 servers

  26 décembre 2017, par Aman Gupta

  avformat/hls : enable http_multiple only for http/1.1 servers
  Some http/1.0 implementations, like python's SimpleHTTPServer, can only support one client connection at a time. Making a second request while the first is still connected leads to a deadlock.
  This change enables multiple connections for http/1.1 servers only, which need to support keepalive by default and should have no problem with concurrent requests.
  Signed-off-by : Aman Gupta <aman@tmm1.net>
  

  • [DH] doc/demuxers.texi
  • [DH] libavformat/hls.c

• Repeat RTMP with FFMPEG when stream already started

  1er avril 2017, par John Doee

  I have an NGINX RTMP Server setup, unfortunately the playback of the rtmp source is only possible for a few seconds after the specific stream has been published.

  Though connections that have already been opened e.g. Transcoding through FFMPEG works fine without any problems even for a few hours but they have to be started within a few seconds after the video signal is being published.

  So while the stream is transcoded and hence definitely available, FFProbe can’t find the specific stream ending with the following output (Debug mode) :

  [rtmp @ 0x7fadbdc0b5e0] Proto = rtmp, path = /live/4_9_lLV7GhFmTG0w, app = live, fname = 4_9_lLV7GhFmTG0w

  [rtmp @ 0x7fadbdc0b5e0] Server bandwidth = 5000000

  [rtmp @ 0x7fadbdc0b5e0] Client bandwidth = 5000000

  [rtmp @ 0x7fadbdc0b5e0] New incoming chunk size = 4096

  [rtmp @ 0x7fadbdc0b5e0] Creating stream...

  [rtmp @ 0x7fadbdc0b5e0] Sending play command for ’4_9_lLV7GhFmTG0w’

  [rtmp @ 0x7fadbdc0b5e0] Deleting stream...

  rtmp ://***:80/live/4_9_lLV7GhFmTG0w : Input/output error

  (Executing exactly the same command within two or three seconds after / before initial publishing of the video signal succeeds. Transcoding processes last for the whole duration of the stream) It seems that there is missing some header data that is used to identify the current stream after a few seconds.

  Any suggestions on this ? Thank you very much for your help in advance.

• ffmpeg streaming (mpegts vs rtmp) error

  7 octobre 2017, par Thomas

  This works :

  ffmpeg -i  test.mp4 -framerate 30 -video_size 1280x720 -c:v libx264 -preset veryfast -maxrate 1984k -bufsize 3968k -vf "format=yuv420p" -g 60 -f mpegts udp://x.x.x.x:1935/video/test

  but this doesn’t :

  ffmpeg -i  test.mp4 -framerate 30 -video_size 1280x720 -c:v libx264 -preset veryfast -maxrate 1984k -bufsize 3968k -vf "format=yuv420p" -g 60 -f flv rtmp://x.x.x.x:1935/video/test

  I get :

  RTMP_Connect0, failed to connect socket. 10061 (Unknown error)
  
  rtmp://x.x.x.x:1935/video/test: Unknown error occurred

  yes, I have a server (Nimble) that is actively listening to RTMP connections and it doesn’t see any RTMP streams incoming.

  Even when running ffmpeg on the server machine with 127.0.0.1, I get the same error.

  Does anyone have an idea why ?