The VideoLAN Forums

Hi, I have a VLM conf file below. In VLC 1.0.5 it produces a video with 16:9 aspect ratio as expected. In VLC 1.1.5 the aspect ratio is 4:3. Can anyone tell me how I can get it back to 16:9? Michael new audio broadcast enabled setup audio input "mms://wmlive-acl.bbc.co.uk/wms/bbc_ami/radio1/rad...

Please some one..

is it possible to reduce the volume of a stream during transcoding?

I need an audio stream in my stream output but I want to ramp the volume right down. Stupid sageTV won't play an mpg with no audio stream so I am adding a fake stream but don't want to hear the content. --volume=0 seems to do nothing to the mpg file I'm generating - is must be playback only. Is ther...

Ticket #3510 raised

My work around for the moment is to expand the playlist myself - not ideal turned out to be very tricky.

Then you can have:

setup audio input "mms://stream1"
setup audio input "mms://stream2"

and VLC will skip over duff streams and move to the next one.

Michael

Hi, I'm taking an internet video stream and bridging in a "fake" video stream to produce an mpeg transport stream with an audio and video stream. Only trouble is the transport stream seem to contain the fake video for a few seconds before the audio stream appears. The destination app only ...

Hi

You should consider using the rc interface.

-I rc --rc-host=localhost:<portnumberofyourchoice> --rc-quiet

Then you can send commands via a socket <portnumberofyourchoice> to the VLC session e.g.

stop
clear
quit

Michael

I'm using
Which gets me a nice log file.

But it always brings up a DOS window with the log messages which I do not want.

Is it possible not to have the window but keep the log file.

Michael

I have a video stream to dump to a file that will be read by another app.

The other app will only play the fileif there is a video AND audio stream.

Is it possible with VLC to generate a fake audio stream (of silence)?

Michael

Hi, I think this is a well known issue. If you specify: setup audio input "http://www.bbc.co.uk/radio1/wm_asx/aod/radio1_hi.asx" (a playlist). It doesn't work. But if you dig into that file and pull out one of the entries: setup audio input "mms://wmlive-acl.bbc.co.uk/wms/bbc_ami/radi...

The scene filter dumps raw video frames. But it is not clear what you actually want to do.

Hi,

Thanks for your reply.

I want to capture an image periodically from an mjpeg stream and save to a file or a series of files.

MIchael

Is it possible to grab a frame and keep updating it?

I've been all over the forum and documentation and there are various hints that it may have been possoible at some point but not command line that seems to work with 1.0.5.

Michael

"C:\Program Files\VideoLAN\VLC\vlc.exe" "http://nembiz.dyndns.org:9090/img/video.mjpeg" --sout="#transcode{vcodec=mp2v,vb=800,fps=30,scale=1,width=720,height=576,acodec=mpga,ab=128,channels=2}:duplicate{dst=std{access=file,mux=ps,dst='output.mpg'}}" -I rc --rc-host=loc...

These other tools (Mencoder, ffmpeg) seem to have the basics but I cannot seem to make them operate in a "keep" encoding fashion. i.e. they giveup when they find the end of a file which is half way through been produced. Its seems to me that VLC is adding value above and beyond what these ...

The mp4 is from an ip camera.

So I guess unless the camera comes with options its not going to work.

Or can I process mp4 into some intermediate format and then to mpeg-2 TS?

I have noticed that if I stream a live mpeg4 video stream and transcode to mpeg2 video. vlc %url% --sout="#transcode{vcodec=mp2v,vb=4000,fps=30,scale=1,width=720,height=576,acodec=mpga,ab=128,channels=2}:duplicate{dst=std{access=file,mux=ts,dst='test.mpg'}}" --sout-transcode-audio-sync If ...

I have tried ffmpeg and it works perfectly.

Given that vlc is based a lot on the work on ffmpeg.

and vlc already does so much

Why can we not just bring this functionality to the command line of vlc?

Do I have any other options both with VLC and outside? On the face of it the thing I am trying to do (effectively add music to a slide show and output as mpeg) is a less ambitious subset of what input slave is trying to do. I have tried bridging before (http://forum.videolan.org/viewtopic.php?f=11&a...

Thanks for opening the ticket.

I see some comments on the ticket - is there any likehood of it being fixed?

My internet radio plugin for SageTV relies on the input slave feature to add music to a sequence of images.

My users are stuck on 0.9.8a at the moment.

Michael

Thanks very much

Yes it works fine without --input-slave... apart from having no sound.

Michael

Confirm - this was the problem.

fps=<framespersecond>

now needs to be added to the transcode command.

Michael

Hi, This used to work fine with version 0.9.8. But fails to produce any output in VLC 1.0.2. Can anyone help please. Thanks, Michael vlc.exe fake:// --fake-file="test.jpg" --fake-duration=9999999999 --fake-file-reload=5 --input-slave="music.mp3" --sout="#transcode{vcodec=mp2...

I think the answer may be the same as:

viewtopic.php?f=14&t=66101&p=220209&hil ... v+#p220209

I may need to specify fps.

Checking tonite.

I think the following messages are the key ones: main error: Streaming / Transcoding failed main error: VLC could not open the encoder. main debug: TIMER module_need() : 131.000 ms - Total 131.000 ms / 1 intvls (Avg 131.000 ms) stream_out_transcode error: cannot find video encoder (module:any fourcc...