[Live-devel] Problem streaming continuous H.264 video over Transport Stream

[Ross Finlayson]

>I'm using Live555 to send H.264 ES video over Transport Stream using 
>MPEG2TransportStreamFromESSource but the video stream blocks for >20 
>minutes in every hour or so.
>The goal is to deliver a live video stream using an H.264 video 
>encoder as the source, initial tests showed that Transport Stream 
>offered the most fluid stream.
>This problem doesn't happen when sending raw H.264 ES using 
>H264VideoRTPSink directly.

IMHO, if you're able to send H.264 video directly over RTP (i.e., 
without encapsulating it in a Transport Stream first), then you 
should continue to do this, because there will be less network 
overhead - and better resliency to packet loss - by doing this, 
compared to streaming Transport Streams.  I don't know what you mean 
by Transport Streams being 'more fluid', but that should not be the 
case, especially if the presentation times on your H.264 NAL units 
(delivered by your encoder) are correct.

If, however, you insist on transmitting Transport Stream data (rather 
than raw H.264) over RTP, then I suggest that you first create a 
Transport Stream *file*, and then trying to stream that (e.g., using 
our existing, unmodified "testOnDemandRTSPServer" or 
"live555MediaServer" applications).  That might give you some idea 
about what's going wrong.
-- 

Ross Finlayson
Live Networks, Inc.
http://www.live555.com/