Hi, I am using the UMC H264VideoDecoder to decode RTP H.264 streams (baseline profile 428032 and 420033). What I found so far is some higher resolutions like 1280x800, 1920x1080 are not decoded properly (a large part of the frame is grey). Sometimes the decoder crashed too. I recorded a problem stream using VLC to a MPEGTS container and fed frames from this to the decoder and everything was fine.
Method: I get the Base64 encoded SPS and PPS from the sdp, decode it and feed it to the decoder using GetFrame (2 calls one for SPS and one for PPS). The GetInfo correctly returns the video stream info. I use liveMedia code to get the NALUs prefix them with the 3 byte header 0x000001 before feeding it to the decoder. I also make sure the decoder has consumed all the data before feeding it new data.