[MPlayer-dev-eng] [PATCH] Do not block mplayer at rtsp eof
Ross Finlayson
finlayson at live555.com
Tue May 1 16:04:46 CEST 2007
At 1:10 PM +0200 5/1/07, Carl Eugen Hoyos wrote:
>Current svn hangs on eof when playing rtsp streams (from a server that
>supports trick play). Attached patch fixes this issue by quitting after
>no packet has arrived for three seconds.
No, this is bad. A RTSP client should quit only if it receives a
RTCP "BYE" packet, or if the RTSP connection closes. (I.e., the
testing for "stream->eof" is OK, but the 3 second delay is not.)
For streams that have a known end point, the server will indicate
this, by including an end time in the 'time' ("t=") SDP attribute,
but will *not* send a RTCP "BYE" when it reaches the end of the
stream. This allows the client to - if it wishes - seek backwards
and replay the stream (using RTSP). (For 'live' streams, with no
predefined end point, the server will instead send a RTCP "BYE" if
the stream ends.)
(If a client *really* wants to quit after reaching the end of the
stream - i.e., without using its ability to seek backwards and replay
the stream - then it can, if it wishes, use the stream's known 'end
time' to figure this out. This is what our "openRTSP" command-line
client does, for example. For GUI clients, however, we really want
to retain the ability to seek backwards and replay the stream.)
--
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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