Type Description Application intended Real time in-service quality monitoring at source and at remote destination (when copy of the source is available) and lab testing Model input Reference video and impaired video (transmission errors with packet loss and temporal errors of pausing with skipping) Input video bit-rate range 16 kbps-4 mbps Input packet loss type Random Input frame rate 5-30 fps Input video resolution QCIF, CIF and VGA Video codecs H.264/AVC, VC-1, Windows Media 9, Real Video (RV10), MPEG-4 (Part 2), DivX, Cinepak
, H.261, H.263, H.263+, Sorenson and Theora Table 12: Model performance overview.
Our biggest competition came from codecs such as Indeo and Cinepak
, and from an emerging standard called MPEG-1.
Another new export options allows outputting to AVI formats, including DivX, XviD, Cinepak
, and Intel Indeo.
At the other end of the scale the Cinepak
codec will still work fine on many very old computers, however it suffers from relatively severe image quality problems.
Open video streaming functions must support all international and industry video format standards such as MPEG1, MPEG2, DVD, MPEG4, Indeo, Cinepak
, QuickTime, and Motion-JPEG.
It comes with a series of sample clips that render the same talking head sequence using different video compression algorithms (Cinepak
, Indeo, etc.).
My first product was a CD-ROM that benchmarked the CD-ROM video compression products, which included Cinepak
, Indeo, and a funky, poorly performing codec called MPEG-1.
SMP can render footage in the *.avi format using any of the available codecs resident on the system, including PALDV, Div X, Cinepak
Gray boxes indicate that there is no specification for the function, such as Cinepak
The ability to set keyframes has been around in compression projects for ages now; I did a lot of this in the Cinepak
era, as that codec was prone to keyframe popping issues.
The compression technique (Cinepak
versus Indeo) used in creating a video flick has a serious impact on multimedia quality, just as fractal image compression of images can perform wonders.