Bug#860555: vlc: [h264 @ 0x7f8bdc14f340] qmmco: unref short failure when streaming rtsp://dccourt.streamguys1.com/live/streamName

Sebastian Ramacher sramacher at debian.org
Fri Apr 21 09:26:18 UTC 2017


Hi

On 2017-04-19 08:21:07, Daniel Kahn Gillmor wrote:
> Control: tags 860555 - moreinfo
> 
> On Wed 2017-04-19 11:40:44 +0200, Sebastian Ramacher wrote:
> > On 2017-04-18 11:20:47, Daniel Kahn Gillmor wrote:
> >> If i run:
> >> 
> >>    vlc rtsp://dccourt.streamguys1.com/live/streamName
> >
> > I'm afraid that without an actual stream that exhibits the problem or a sample,
> > there is nothing we can do about that.
> 
> Ah, i see why you might have thought this is a placeholder, but it is
> the name of the actual stream!
> 
> It appears to be down right now, probably because it's only running when
> the Washington, DC court of appeals is in session in a particular
> courtroom.  It may be worth retrying around 10:30am in
> TZ=America/New_York.

I'll try to catch it.

> 
> If you'd rather have a static sample of the stream, i'm happy to provide
> that but i'm not sure the best way to do so.  Should i run it and grab a
> .pcap on the network interface?  or is there some other preferred way to
> get a sample?

https://wiki.videolan.org/Documentation:Streaming_HowTo/Receive_and_Save_a_Stream/
has some instructions on recording a stream.


> >> then i get a series (about 1/second) of messages like this to stdout
> >> or stderr:
> >> 
> >> [h264 @ 0x7f8f58167880] mmco: unref short failure
> >
> > FWIW, this is a message from ffmpeg.
> 
> thanks!  should we reassign or at least CC those folks on this report?

vlc currently uses an older ffmpeg version than in the archive as src:ffmpeg. So
we could do that once we know that newer ffmpeg version also print the warnings.

Cheers
-- 
Sebastian Ramacher
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