Capturing udp stream using vlc : misformed pictured n sound

[nour]

Hi there,

I'm trying to capture udp stream using vlc in batch.
the test go ok

I use the following command :

vlc udp://@233.60.75.2:2000 :udp-caching=800 :sout=#transcode{vcodec=mp2v,vb=3072,fps=25,scale=1,acodec=mpga,ab=128,channels=2,samplerate=48000}:std{access=file,mux=ps,dst=d:\\tvmonitor\\Journaal_16u00_dagelijks.mpg} --run-time 600 vlc://quit

the problem that I have is when playing the capurted file I see sometimes a second or 2 of "garbidge" : misformed picture and sound !

I though that it may had to do with the delay in UDP stream, but that is not the case , when playing the stream and not captring no problems to be seen.

Please your help.
Nour

[VLC_help]

I would just do demuxdump and encode after that.

[kamal]

Hi

I have a requirement where in I need to capture the Mpeg4 streams from an IP Camera and transcode it to H264 format and mux it to .mp4 container.

Can you please help with the command?

Regards
Kamal

[nour]

Hi Vlc_help,

many thanks

I have tired this vlc udp://@233.60.75.3:2000 :udp-caching=800 --demux=dump --demuxdump-file=d:\\tvmonitor\\De_Wereld_draait_door_ma-vr.mpg --run-time 30 vlc://quit

the problem is that file if very big !

any idea's how to do this,

Regards

[VLC_help]

the problem is that file if very big !

You can transcode it to smaller one (assuming VLC play it). Something like

Code: Select all

vlc De_Wereld_draait_door_ma-vr.mpg :sout=#transcode{vcodec=h264,acodec=mp4a,ab=128,channels=2,samplerate=44100}:file{dst=output.mp4}

[nour]

thanks,

one more question the switch --run-time 30 vlc://quit doesnot work ?!!

[VLC_help]

So it doesn't stop after 30 seconds?

[nour]

no it does not that only when I use dump ! as shown i command above

if I use a command like :
vlc udp://@233.60.75.3:2000 :udp-caching=800 --demux=dump --demuxdump-file=d:\\tvmonitor\\myfile.mpg --run-time 30 vlc://quit

vlc doesn't quit !

but when I use a command like:
vlc udp://@233.60.75.3:2000 :udp-caching=800 :sout=#transcode{vcodec=mp2v,vb=4400,scale=1,acodec=mpga,ab=384,channels=2,samplerate=48000}:std{access=file,mux=ps,dst=d:\\tvmonitor\\myfile.mpg} --run-time 3200 vlc://quit

vlc quits perfectly.

the conclusion is :

when using RAW dump "vlc quit" option doesn't work !
but when using transcode "vlc quit" works !


how come ??!

regards,
Nour Eddine

[VLC_help]

It might be a bug in VLC.

If the input is MPEG-2 video, you could try something like

Code: Select all

vlc udp://@233.60.75.3:2000 :udp-caching=800 --sout=#std{access=file,mux=ps,dst=output.mpg} --run-time 30 vlc://quit

[nour]

problem solved,
thanks