[rtmpdump] rtmpdump error: RTMP_ReadPacket, failed to read RTMP packet header

[John Smith]

On Sun, 21 Mar 2010 18:50:57 +0100, John Smith
<smithjohngroup at gmail.com> wrote :

> On Sun, 21 Mar 2010 02:09:55 +0100, John Smith
> <smithjohngroup at gmail.com> wrote :
> 
> > Hello,
> > 
> > I have used rtmpdump with rtmpsrv last week without problem.
> > This morning, I am unable to use it because I am getting this error:
> > ERROR: RTMP_ReadPacket, failed to read RTMP packet header
> > 
> > I can however view the video without problem with my browser.
> > 
> > Can someone have an hint on the problem ?
> > 
> > Thanks !
> > 
> > Here is the verbose output:
> 
> And here is a more verbose output.
> It seems that packet received after the checkbw invoke has a size of
> zero bytes ? And more surprisingly, if I remove the "-W url", it
> works again ?!? All this seems very strange...
> 

Indeed, instead of giving the flash player, I tried to compute manually
the swfhash and swfsize and I got exactly the same error message.
So something is definitely wrong with the SWFVerification process.