The VideoLAN Forums

Yeah sorry, I seem to have made a stupid mistake. I had conflicting libs installed, a set with --enable-debug and another one without. I forgot to put --libdir=/usr/lib64, so my debug enabled libs were in /usr/lib, and thus not loaded. Btw, if anyone stumbles on something similar, as a general answe...

Thanks to Hugo Beauzee-Luyssen, it's all running smoothly now.

See git commit df36b003c8242b41d6deae4aa1dc08c4a02410d4.

Big thanks to you Hugo.

Hi all, I'm having troubles debugging a libVLC module (invmem). I compiled VLC from git with --enable-debug. When I run my program, I have a segfault and I don't know how to debug it. [0x7fffe800a870] mux_ts mux debug: adding input codec=mpgv pid=68 [0x7fffe800a870] mux_ts mux debug: new PCR PID is ...

I've been messing around with libVLC for the last couple of days, mainly experimenting with the fake and invmem modules. I'm trying to use VLC to generate MPEG-TS content, but without much success up to now. I was able to use vlc (not libvlc) to transcode pictures through fake:// to MPEG-TS and it w...

Not as far as I know. It only works on files.

Since you're using libvlc to stream h264 aren't you setting the configuration there? Other than that, you can check if you couldn't gleam some more info from the VLC messages at debug level 2, or perhaps the media metadata. Otherwise, if you can dump the stuff, maybe try mediainfo (google it or chec...

1) Would something like libvlc_media_list_add_media, libvlc_media_list_count, libvlc_media_list_item_at_index and libvlc_media_list_index_of_item be what you're after? 2) I tried this and it seemed to work. The only warning I had was this which is alright since there is no audio CD in the drive (I d...

You need to get git which is a revision control tool. Something like sudo apt-get git should do that for you. Then once git is installed, you need to clone the vlc repository. Issue git clone git://git.videolan.org/vlc.git in the directory where you want to hold the vlc source tree. You now have a c...

Ok, I'm curious now. I'll get my hands on what I need for these tests. Any ideas on which encoder could potentially gain the most from ICC: MPEG-2, AVC (H264), Dirac, A52, MP3, Ogg, AAC?

Is there a noticeable performance gain from using ICC to compile VLC for use on recent Intel architecture (ie. Core2 or i7)?

Control request? Is it used somewhere else in the source tree? Sound really interesting. And of course, I'm guessing that because of the structure of VLC, no thread safety = bad things guaranteed to happen?

Ok, I see I might have not been clear enough in my question. I mean that if I customize the input module, is there some common place I can access from both the input and output modules? I think I've seen something like vlc_object_find (and seen it refered as bad practice by yourself if I'm not mista...

Not as much as a callback, but rather a bunch of info (dictionnary like) about the current input stream.

What would be the difference between that and fake? By being first class citizens, wouldn't that break image integration to the rendering chain? By the way, this would be about what I was looking for earlier, ( thanks erwan !): vlc -I dummy *.jpg --sout "#transcode{vcodec=mp2v,vb=4000000}:std{d...

Great! Exactly what I needed, thanks. On a side note, if anyone ever needs to use this, keep in mind that if the pictures aren't the same size (width x height), you will need to do some image resizing and also tell transcode what format to use. Something like this will give you a 720x480 5s x number...

I guessed so... Thanks for the answer, at least I know where I stand. Seeing the discussion on this thread about slideshows , did get my hopes up :( But would writing a wrapper based on fake be a good idea? I guess that a simple --fake-whole-god-damn-directory option with few invokes on the fake cal...

Is there some kind of "metainfo" repository that exists in which I could store settings available from the input that could later be accessed by some other part of the chain?

Would it be possible to transcode such a slideshow to a movie? Something like vlc -I dummy *.jpg --sout '#transcode{vcodec=mp2v,vb=4000}:std{mux=ts,dst=test.ts}' --fake-duration 5000 would simply result in vlc regenerating a 5secs mpeg from one image at a time, overwriting the previous, but would it...

Is it possible to do something like multiple fake with a duration? Putting image1 for 20s, image2 for 20s and loop?

From shout.c: /* The shout module only "transmits" data. It does not have direct access to "codec level" information. Stream information such as bitrate, samplerate, channel numbers and quality (in case of Ogg streaming) need to be set manually */ Is that accurate? There is no wa...

I'd be quite curious about that too. Have you found any samples or doc besides the git commit messages and source code comments? I want to draw something (using cairo or SDL or whatnot) and generate a live, in-memory, MPEG-TS (MPEG-2 video) stream. I've tried with ffmpeg, but it seems defective when...