Audio-sync and multicast

About encoding, codec settings, muxers and filter usage
alrama
Blank Cone
Blank Cone
Posts: 21
Joined: 02 Nov 2006 12:11

Audio-sync and multicast

Postby alrama » 19 Nov 2010 13:41

I'm not able to synchronize Audio streaming http out an UDP multicast input. Actual command is:

vlc.exe --quiet -I dummy --no-quiet-synchro --udp-caching=30000 udp://@239.255.100.101:7003 :sout=#transcode{vcodec=h264,scale=0.5,vb=768,ab=64,acodec=mp3,samplerate=44100,deinterlace,high-priority,audio-sync}:std{access=http,dst=0.0.0.0:8090/stream.flv}

Stream out begin synchronized, then lost synchronization. My question is: is it possible use ffmpeg A/V synchronization parameters like this (it seems does nothing):

vlc.exe --quiet -I dummy --no-quiet-synchro --udp-caching=30000 udp://@239.255.100.101:7003 :sout=#transcode{vcodec=h264,scale=0.5,vb=768,ab=64,acodec=mp3,samplerate=44100,deinterlace,high-priority}:std{access=http,mux=ffmpeg{mux=flv,vsync=1},dst=0.0.0.0:8090/stream.flv}

Alberto

Greg
Cone that earned his stripes
Cone that earned his stripes
Posts: 316
Joined: 24 Feb 2009 00:37

Re: Audio-sync and multicast

Postby Greg » 19 Nov 2010 20:23

What OS and VLC version are you using?

I am seeing a similar problem using Ubuntu 10.10 Maverick ,VLC 1.1.4 ,
But not a problem on Windows XP VLC 1.1.4 or Ubuntu Lucid 10.04 VLC 1.0.6

alrama
Blank Cone
Blank Cone
Posts: 21
Joined: 02 Nov 2006 12:11

Re: Audio-sync and multicast

Postby alrama » 22 Nov 2010 10:04

OS : Windows 2003 erver
VLC v. 1.0.5

I suppose the issue is about some properties of my MPEG-TS input format but I cannot change it and I hope ffmpeg muxing is able to manage this stream better then VLC

Greg
Cone that earned his stripes
Cone that earned his stripes
Posts: 316
Joined: 24 Feb 2009 00:37

Re: Audio-sync and multicast

Postby Greg » 22 Nov 2010 17:31

The audio-sync problems seem unrelated, I did not have a problem with Win XP/VLC 1.0.5


Return to “VLC stream-output (sout)”

Who is online

Users browsing this forum: No registered users and 7 guests