'Same Settings as First Clip' - is the video recoded or not?

[thepurplepig]

As the title says.. if I have a video, say for instance MPEG-4 1920x1080, rendered by Videostudio, and I multitrim it, then render it again using the 'Same Settings as First Clip' setting - is the video re-coded, or do I maintain original quality and the different parts are just effectively joined together?

Thanks

[lata]

Hi

Well I don’t know, Good question---- I know that Mpeg is a lossy format and that rendering the video will incur some quality loss, whether you are able to see the difference is debatable, probably after a few generations but a single render would be good quality and should be as good as the original. We are of course converting like for like..

Smart Render would be used, but how does that work, I doubt if it Copies and Pastes the unedited sections, rather de-code and re-code doing a quick job instead of the full treatment.
Render times are indeed quicker.

Smart Render has of course to identify the edited section down to the single frame, and if it gets it wrong then the resultant video could loose a lot of quality, disabling Smart Render would in most cases cure that. The question is how smart is Smart Render.

Having said all that, I think the video is re-coded but you should not see any difference in quality.

By the way, why did you convert the original then use Multi Trim—then rendered again, effectively converting the video twice adding to any loss in quality?

[thepurplepig]

Hi Trevor,

The original production is 90 mins long, created out of footage from 5 different cameras shooting the ame scene from different angles.
Some of the cameras need battery changes at times, so a lot of the footage is not continuous.

So the first huge task is re-assembling the 90 min scene using changing angles from the different cameras, and I render that.
That's like a master copy, after that I need to produce a 20 min highlight version, then a 5 minute action packed summary of the 90 min shoot.
I find it much easier to produce the shorter versions by removing from the long, rather than working from the original set of clips, hence the re-rendering.

I have had problems in the past when working from a huge batch of original clips that somewhere sound unsyncs, and then its a complete nightmare trying to correct it.