The VideoLAN Forums

Good day (and sorry for my english),

I need to get rtsp stream from some video server in my local network and retranslate stream to local port using rtp (or http, doesn`t matter). I want to use this retranslated stream in another app. This is a command i used (Ubuntu 12.04, VLC 2.0.5): Everything works fine, but sometimes video server begins to produce rtsp stream without video data, only audio packets are coming. This leads to increasing memory consumption and later to vlc crashing. If i use only there is no memory leak, so problem is definitely in sout module.

Another annoying thing is that when I use libvlc to embed this in my app, there is no any media_event, which I could use to process such situation when video stream has lost. Furthermore, even video_lock/unlock callbacks are calling with period of about 15 fps, but every time picture contains only the latest frame sent by videoserver. So I don`t see the way to somehow prevent memory leakage even in my app using libvlc.
Upd. There is no any information even in verbose (-vvv) output, when video data has been lost.

This is the graph of vlc process memory consumption.Values [kB] are obtained from /proc/[pid]/status. Blue line is max memory consumtion (VmPeak), orange line is current memory(VmSize).

You should valgrind it.

This is valgrind output without --leak-check=full. Output with --leak-check=full is very big, but I can provide it if you would like.
Unfortunately I failed to run cvlc under valgrind (i dont understand what i am doing wrong) - it just produce several lines:
And what are you expecting from valgrind? As I know, it can just detect such leaks, when you forget to clear memory before reusing a pointer. In this case, I think it can be something like infinitely growing audio buffer, which waits for video data, that doesnt comes. Or something else, in other word not "leak" in classical understanding.

I don't see that much leaks there, do you? 19kB? And all of those seem to not be in VLC...

Can you share your vlc -vvv logs?

Video stream was abrupted after line As you see, there is no any information appeared after abrupting the video stream. As I think, vlc just waiting for the next video data packet, as it should, and meanwhile it buffers audio data, so it isn`t true memory leak. But because there is no any timeout, and video data doesn`t comes for a long time, buffer grows infinitely , while available memory not ended, and then crashes.

And if there is no audio stream, translation is ended, and memory doesn`t grows.