I am able to test trick mode functionality using
testMPEG2TransportStreamTrickPlay at various scales and in both
directions. However, when I try to test with openRTSP I see some
strange results. I modified the call to the function
playMediaSession() as you describe in a previous thread ("Trick play
problems", 4/16/2007) to accept arguments for start time, end time,
and scale. I am using a start time of 0.0f and an end time of
-1.0f. With a scale of 1.0f, everything works well, with openRTSP
creating a file (video-MP2T-1) locally. When I try scale = 2.0f, it
still creates the same file, but with the same size and scale as the
first (verified by playback with VLC). If I try scale = 4.0f,
openRTSP creates the file video-MP2T-1, but it remains at size zero
and openRTSP appears to do nothing.
That's odd. Are you using the latest version of the code? (Version
2007.07.01 fixed a bug that affected 2x speedup (although it should
not have affected 4x speedup).)
I have tested the latest version of the code (2007.07.10), and it
works OK for me.
(In each case, I modified the call to "playMediaSession()" at line 65
of "testProgs/openRTSP.cpp".
I need a method of verifying trick mode over RTSP. Also, the
directions for using Trick Mode state that the scale must be an
integer. This means that scales less than 1 are not support (i.e.
slow motion)?
Not for Transport Streams, with our implementation.
--
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
_______________________________________________
live-devel mailing list
live-devel@lists.live555.com
http://lists.live555.com/mailman/listinfo/live-devel
