The VideoLAN Forums

Hi Remi, I just tested it with oss and there are massive delays as well. E.g. after a 6hrs recording it takes up to 15minutes till vlc is terminated. Is it really a limitation of the input? Do you have more information about that? I've the impression that it is related to vlc, perhaps it syncs the a...

Hi xtophe, It is :( $ dpkg -l libavutil\* Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Description +++-======================================-======...

Hi there, I love vlc, know all key strokes and therefore really don't want to miss it on my system. But after I updated to ubuntu lucid I see the following: http://img571.imageshack.us/img571/2816/oilspill.png This suppose to be the live stream of the oil spill. I have this squeezy problem with all ...

Thanks Remi. That did the job.

Got slightly better. Thanks

Thanks Remi. Would oss make any difference?

bump

Do you stream with cvlc or the vlc gui? How does sout look like?

Hi there, can someone explain me why the killing the vlc recording of a video with audio takes by far more time than killing one without audio? This is how I record: #!/bin/bash DURATION=21600 cvlc --color --run-time=$DURATION v4l2:///dev/video2:width=320:height=240 :input-slave=alsa://hw:0,0 :v4l2-...

Can anyone help me out with that. So far I found no solution.

Thanks,
Ralf

Hi All, I repeatedly (endless loop) capture 6hrs of video and audio input with vlc: while [ 0 -eq 0 ]; do cvlc --run-time=21600 v4l2:///dev/video0 input-slave=alsa://hw:0,0 :v4l2-standard=0 :sout='#transcode{vcodec=mp4v,vb=800,scale=1,acodec=mpga,ab=128,sfilter=marq}:std{access=file,mux=mp4,dst=/tmp...

Hi Remi,

I would like to keep the frame rate. I hope a video bit rate of 1000 will do the job.

Thanks,
Ralf

Dear All, I record with vlc: cvlc --color --run-time=10 v4l2:///dev/video0 :v4l2-adev= :v4l2-standard=0 :sout='#transcode{vcodec=mp4v,vb=800,scale=1,acodec=none,sfilter=marq}:std{access=file,mux=mp4,dst=/tmp/out.mp4}' --sub-filter marq --marq-marquee \"%D %H:%M:%S\" --marq-position 6 When ...

Yes, I feared that. Furthermore I encode not only 2 but 4 videos on a Pentium 4. Ok, what do you think of a Core 2 Duo. Will that work?

Thanks Remi!

Hi Remi,

Yes, I know that I can use the V4L2 multiple times. However, I've the feeling that the audio device is not released after I used it the first time. Because on the 2nd time there is no audio in the video.

Thanks,
Ralf

Hi, I try to record four video streams (/dev/video[0-3]) under Linux. So far I was not very successful. I let four cvlc programs execute in the background but it turned out that they are not recorded in the same quality. For example sometimes some frames are missed on some recorded streams. I looked...

Hi there, On my debian machine I record two camera streams link this: cvlc --color --run-time=10 v4l2:///dev/video0 :input-slave=alsa://hw:0,0 :v4l2-standard=0 :sout='#transcode{vcodec=mp4v,vb=800,scale=1,acodec=mpga,ab=128,sfilter=marq}:std{access=file,mux=mp4,dst=/tmp/out0.mp4}' --sub-filter marq ...

Dear All, I record video and audio: cvlc --color --run-time=10 v4l2:///dev/video0 :input-slave=alsa://hw:0,0 :v4l2-standard=0 :sout='#transcode{vcodec=mp4v,vb=800,scale=1,acodec=mpga,ab=128,sfilter=marq}:std{access=file,mux=mp4,dst=/tmp/out.mp4}' --sub-filter marq --marq-marquee \"%D %H:%M:%S\&...

Ok, I sort it out. The new command is: cvlc -vvv --color --run-time=10 v4l2:// :v4l2-dev=/dev/video0 :input-slave=alsa://hw:0,0 :v4l2-standard=0 :sout='#transcode{vcodec=mp4v,vb=800,scale=1,acodec=mpga,ab=128,sfilter=marq}:std{access=file,mux=mp4,dst=/tmp/out.mp4}' --sub-filter marq --marq-marquee &...

Hi, I can perfectly record from /dev/video0 and write the output to a file. However, I can not 'inject' sound into that outfile. The command that I use is: cvlc -vvv --color --run-time=10 v4l2:// :v4l2-dev=/dev/video0 :v4l2-adev=/dev/dsp :v4l2-standard=0 :sout='#transcode{vcodec=mp4v,vb=800,scale=1,...

I record from /dev/video0 to an mp4 video file: cvlc --color --run-time=60 v4l2:///dev/video0 :v4l2-adev= :v4l2-standard=0 :sout='#transcode{vcodec=mp4v,vb=800,scale=1,acodec=none}:std{access=file,mux=mp4,dst=test_mp4v.mp4}' When playing the recorded file via vlc I can see the video nicely. However,...

Hey, great! Thank you very much! This works.

Dear All, I capture (only 5 sec for testing purposes) from /dev/video0: cvlc --color --run-time=5 v4l2:///dev/video0:norm=secam:frequency=543250:size=320x240:channel=0 --sout '#transcode{vcodec=mp4v,acodec=mpga,vb=3000,ab=256,venc=ffmpeg{keyint=80,hurry-up,vt=800000},deinterlace}:std{access=file,mux...

Dear All, During capturing of /dev/video0 I want to overlay the output video with a time stamp. is that possible? This is how I capture so far: cvlc --color --run-time=5 v4l2:///dev/video0:norm=secam:frequency=543250:size=320x240:channel=0 --sout '#transcode{vcodec=mp4v,acodec=mpga,vb=3000,ab=256,ve...