what encoder does MPEG 2 HD transport stream

[Chris Borjis]

Tsunami and Canopus Procoder both can.

But Procoder does it SO MUCH better.

I just encoded some HDCAM footage to transport streams using both.

The client wanted the low bitrate D-VHS standard of 14.1 mbps.

There was a lot of motion on this footage with quick pans and zooms.

Tsunami was completely unable to encode the footage at that rate. It took a 36 mbps rate (blu-ray 1x maximum) to be able to encode the footage and keep it looking nice during the fast motion.

Procoder however, handled it like a champ. The original footage looks just as good at 14.1 as a transport stream then as its source file.

For reference The HDCAM footage was 40 minutes long and took about 33 hours to encode on a P4 2.5GHZ system with 1GB Ram. I had it on “highest quality” just above mastering quality. I suspect it could have been on a lower setting and still maintain a good image.

The final size of the mpeg2 transport stream was 4.1GB

[Chris Borjis]

one last thing, the HDCAM footage was 1080P and the client had to have it at 720P so that resizing probably added to the overall compression time as well.

[Lee]

thanks borjis

very useful information

[Chris Borjis]

Glad to be of help. 🙂