[Live-devel] Read multiple frames?

[Ross Finlayson]

>All the above functions get porperly called when I start the 
>program, but the problem is that the ffmpeg decoder does not get 
>enough data when the MPEG1or2VideoRTPSource::getNextFrame() is just 
>called one time. size == 0 in this case but the frame can't be 
>completely decoded. numBytesRead is between 700 and 1500 Bytes every 
>time (seems too small imho). How do I obtain more data from the 
>Source until I can decode one frame? Shouldn't 
>MPEG1or2VideoRTPSource deliver exactly ONE VIDEO FRAME?

Yes, it does.  However, don't forget that some video frames are 
P-frames or B-frames - i.e., much smaller than an I-frame.  Also, I 
suspect that 4096 bytes is nowhere near enough space to store all 
incoming MPEG-1 or 2 frames - especially I-frames.  I suggest 
increasing this to 50 kB or 100 kB, to be on the safe side.
-- 

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