streaming audio and video with VLCKit

[kermit666]

Hi all!

I am trying to preview an audio-video stream in Cocoa using QTKit. I succeeded in showing the video, but no audio is heard. This is the code I use:

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// Allocate a VLCVideoView instance and tell it what area to occupy rect = NSMakeRect(0, 0, 0, 0); rect.size = [otherPersonView frame].size; otherPersonVLCView = [[VLCVideoView alloc] initWithFrame:rect]; [otherPersonView addSubview:otherPersonVLCView]; [otherPersonVLCView setAutoresizingMask: NSViewHeightSizable|NSViewWidthSizable]; otherPersonVLCView.fillScreen = YES; otherPersonPlayer = [[VLCMediaPlayer alloc] initWithVideoView:otherPersonVLCView]; NSString *streamName=@"mystream.sdp"; NSString *otherPersonURL=[NSString stringWithFormat:@"rtsp://%@/%@", ip, streamName]; NSString *myURL=[NSString stringWithFormat:@"rtsp://127.0.0.1/%@", streamName]; //------------------------------- //set stream view [otherPersonPlayer setMedia:[VLCMedia mediaWithURL:[NSURL URLWithString: otherPersonURL]]]; [otherPersonPlayer play];

When I play the stream in VLC I hear audio normally so I'm doing something wrong in the code, probably.

Do I need to do something with VLCAudio? Does the audio stream need to be a separate stream? If so, how would I play only the audio? So far I haven't managed to find much documentation about VLCKit apart from the doxygen generated text.

I tried doing something like this, but it also didn't work:

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VLCAudio *audio = [[VLCAudio alloc] init]; audioPlayer = [[VLCMediaPlayer alloc] init]; NSString *someRadio = [NSString stringWithFormat:@"http://4353.live.streamtheworld.com:80/WQHTFMAACCMP3"]; //------------------------------- //set audio view [audioPlayer setMedia:[VLCMedia mediaWithURL:[NSURL URLWithString: someRadio]]]; [audioPlayer play];

If nobody knows how to do it in VLCKit, libvlc would maybe also be useful.

Thanks in advance!
Drazen

[Jean-Baptiste Kempf]

Can you share the messages?

[kermit666]

Sure!

Once the program starts playing the stream, it prints this line repeatedly for the first few seconds (and then stops printing anything for the rest of the duration):
"number of reference frames exceeds max (probably corrupt input), discarding one"

I don't know if those are all the messages I can get. Is there maybe a way to get verbose output or to see some logs?

The stream is rtsp and is outputed by the Darwin Streaming Server and the Quick Time Broadcaster (though I plan to switch to VLC completely once I find the time to learn more about streaming in VLC; QT Broadcaster is very unstable). VLC player can play both the video and the audio.

[Jean-Baptiste Kempf]

-vvv to get verbose

[kermit666]

Here is the complete -vvv output I get from opening the stream in VLC, letting it play for a few seconds and closing it (I got a seg fault when I closed it - that sometimes happens when I run VLC from terminal and try to close it with ctrl+C):

http://pastebin.com/3ebLpLv1