*GstRtpRecv:
  *gstrtprecv.c

*For Sequencing:
  * timestamp
  * algorithm

*For Video:
  * payload_t 

* sequence number should not start at 0, but randomly

* MPEG4 header
  - ffmpeg mpeg4 decoder gives error message when sending only the config
    string, parsing is OK, error just means no picture was found in the
    stream.


* compare H263 encoders and H263+

* better RTP packetizing for h263

* bitrate tuning in ffmpeg

* make ffmpeg negotiate only with accepted framerates