[FFmpeg-devel] [PATCH/RFC] Detecting EOF in RTMP
Fri Dec 11 12:16:48 CET 2009
On Thu, 10 Dec 2009, Kostya wrote:
> On Thu, Dec 10, 2009 at 12:12:50PM -0500, compn wrote:
> > On Thu, 10 Dec 2009 17:23:03 +0200, Kostya wrote:
> > >On Thu, Dec 10, 2009 at 04:37:59PM +0200, Martin Storsj? wrote:
> > >>
> > >> When the live broadcast ends, the current rtmp protocol handler doesn't
> > >> detect this as an eof, and thus sits and waits for more data on the
> > >> connection.
> > >
> > >Looks like Wowza does not follow RTMP standards :(.
What would be the proper standard way of indicating that the stream has
reached the end, by the way? I tried all the streams on the RTMP
MultimediaWiki page (most of them were dead, but a few of them worked),
and found a few different cases:
- Some streams end without sending a single hint that there won't be any
more data (e.g.
- Some streams send a NetStream.Play.Stop event, followed by a server
this immediately, to indicate that the file isn't found at all)
- Some streams send an NetStream.Play.UnpublishNotify event, followed by a
server error ("Failed to play foobar; stream not found."), when the stream
ends. This occurred with the "live" example in Wowza.
- Some streams send an NetStream.Play.Stop event, not followed by any
server error. This occurred when serving a static file through Wowza.
In my patch from yesterday, I reacted to the
NetStream.Publish.UnpublishNotify event, but when testing things today, I
only receive NetStream.Play.UnpublishNotify events instead. Either the
former was a mistake in documenting my findings yesterday, or some servers
can return either one. I only kept the Play.UnpublishNotify version for
Adding the STREAM_STOPPED behaviour as in my patch makes some of these eof
error messages be lost, since the Stop/Unpublish status codes preceding
the error messages terminate reading from the stream at that time.
> > is it possible to detect wowza server and then use non-standard exit
> > procedure?
> Yes, it sends notification with full server name and version.
I guess that would be an option, but I'm not sure if this is a general
Attached is an updated patch.
Kostya, do you want me to add wowza detection and enable this only in that
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