FAQ

How can I use the trace files for my simulation?

Most researchers report that their simulation programm simple read the trace file and generate appropriate packets. An example how this can be done in PTOLEMY or the NS2 network simulator is given on the web side of the Technical University of Berlin. Note, if you want to use IP based protocols, remember that the trace files contain only the raw video frame. You might have to add the IP overhead. E.g. for IP real time services 12 bytes for RTP, 8 bytes for UDP, and 20 bytes for IPv4 has to be added to each video frame (assuming one video frame per IP packet).

I downloaded the trace files but i can not see anything?

The trace files are only ASCII files that give information about the video frames for a given video sequence. The traces file is not the encoded video bit stream!!!

NOTE: To avoid any conflict with copyright laws, we emphasize that all image processing, encoding, and analysis was done for scientific purposes. The encoded video sequences have no audio stream and are not publicly available. We make only the frame size traces available to researches.