[Live-devel] Mpeg 2 ts trickplay

[Ross Finlayson]

>I have some questions regarding the mpeg 2 ts trickplay.
>Whenever a pause, or rewind or a forward is issued, i
>read the last I frame that was sent from an I frames file.
>(i separate out the I frames as ts packets are sent).
>Generate the ts packets and stream them.
>Ok, sounds fine till this point (i hope).
>NOW, when in normal streaming the PCR difference
>is abt 33 ms. But when in trickplay ,i insert any random PCR value
>at the start (and also set the discontinuity indicator) and 
>increment ithe PCR by 40 ms (mpeg2,frame rate = 25)
>for every i frame.
>So PCRs are present only at the start of every I frame. They never 
>come in between.
>I m streaming it to an amino set up box. It's working fine.
>I would like to know whether it is efficient.
>And regarding pause, i keep on sending same frame . is this fine too?
>I pipe the output of my program to live555 mpeg2tsFramer, basic udpsink.

I'm confused.  Are you referring to the support for MPEG-2 Transport 
Stream 'trick play' (using 'index files') that was recently added to 
the released "LIVE555 Streaming Media" software (see 
<http://www.live555.com/liveMedia/transport-stream-trick-play.html>), 
or are you instead referring to some new software that you wrote 
yourself that intends to do the same thing?  (If it's the latter, 
then I'm not going to be able to help you - we can only provide 
support for the original software that you download from our web 
site.)
-- 

Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.live555.com/pipermail/live-devel/attachments/20070129/d5240f09/attachment.html