Hi all For the benefit of those checking list archives ...
Way back in February I posted some questions about blocky artifacts being observed in mpeg2enc output in scenes with rapid movement. Included was a pointer to http://www.atrad.com.au/~jwoithe/mpeg/ at which were examples of the effects as well as the results of tests I had carried out. The artifacts meant that motion appeared jerky even though there was no error with regard to interlacing. Over the past few months I have been carrying out further tests while consulting with various people, the results which are also now available at the above URL. The practical upshot is that the artifacts I have been seeing appear to be coming from libdv's encoder (during rendering from cinelerra earlier in the processing pipeline) rather than from mpeg2enc itself. It appears that while libdv's decoder works reasonably well, its encoder isn't quite up to scratch (at least with respect to PAL footage anyway). Work continues elsewhere on the dv encoding issue. In summary, mpeg2enc appears to be in the clear with respect to this problem. Regards jonathan ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
