[Live-devel] H264 H264VideoRTPSource

Ross Finlayson finlayson at live555.com
Mon Jan 25 05:00:21 PST 2010


>I'm working with the class H264VideoRTPSource when I recieve RTP 
>data information of an IP Camera and I have some questions.
>
>First, If I look my (subsession->(fVideoWidth y fVideoHeight)) and I 
>can't extract video resolution because this values are 0.

Only a few RTSP/RTP streams specify this information in their SDP 
description (i.e., as a hint).  In general, you can get this 
information (video width and height) only by decoding the video 
stream.


>  Then I'm looking to extract that information looking the SPS, 
>Sequence Parameter Set, packets. On the live555 classes I have been 
>looking and I can't find any parser of that data. Is possible 
>extract that information using live555 or I need to search another 
>parser to do that task?

No, you will need a H.264 video decoder.
-- 

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


More information about the live-devel mailing list