Segment Encode

[zvit]

If I import a DVD (vob files) right onto the timeline, and export to mpeg2 with "Segment Encode" checked, will this export without degrading quality?

[antonsvideo]

I would never place VOB files direct on the timeline

since you have an EDIUS 6 version, you should be able to use the source browser to capture the disk direct to mpeg with the source browser (make sure reconstruct files is enabled)

if you should have EDIUS7, forget it, disk capture is dead at this stage

[Liverpool TV]

If I import a DVD (vob files) right onto the timeline, and export to mpeg2 with "Segment Encode" checked, will this export without degrading quality?

Hi Zvit.

It would appear that the answer is no.

Try this.

Burn a DVD folder of a short clip, say about 10 seconds, using 8Mbit.

Then reimport the file back to Edius.

Now use this file source to burn another temp folder but at 2.5Mbit.

Reimport that file and compare it the first one.

You should see that they are both different.


It may be that if you used the same bit rate every time, that it may do what you want, but I doubt it. This may be because you may mix different source MPEG2 files in one time line. Then when you come to re-encode, the different source files have to be rendered to one setting type.

I may have set things wrong, and maybe the MPEG2 exporter can do this, but I don't think burn to disc does. So you may want to try this yourself to be sure.

Certain codecs do lend themselves to the process you are asking about, but I think these are usually intra frame type codecs, and certain propitiatory codecs. There may be an MPEG2 encoder out there that does this?

[Andreas_Gumm]

It was never clear what file properties must match to be able to have segment encoding.
This option appears not reliable to me.

Andreas

[Liverpool TV]

If you try the same workflow as before but step 1 is 2.5 and step 2 is 8. You should see an increase in size. Unfortunately again, these aren't the result you're looking for.

Or put another way, if your encoder's midichlorian count is on the low side, " these aren't the droids you're looking for" :)

[zvit]

since you have an EDIUS 6 version, you should be able to use the source browser to capture the disk direct to mpeg with the source browser (make sure reconstruct files is enabled)

if you should have EDIUS7, forget it, disk capture is dead at this stage

For some reason, even though the computer sees the disk, the source browser doesn't even show me that there's a disk inserted so I can't use it. I'm using 6.07

[antonsvideo]

For some reason, even though the computer sees the disk, the source browser doesn't even show me that there's a disk inserted so I can't use it. I'm using 6.07

yes, disk capture has been a hit and miss for a long time, it almost always fails on any DVD that was made with a DVD recorder

one tool that never fails me in disk capture is T5

[Liverpool TV]

For some reason, even though the computer sees the disk, the source browser doesn't even show me that there's a disk inserted so I can't use it. I'm using 6.07

If your disks are not protected you should be able to drag and drop their media files to a local hard drive folder. If they are protected you can get around this as well, with the appropriate software. Once you do this, Edius will import your disk files as it would any other compatible media. I have done this myself many times across many different versions of Edius, so maybe this could work for you as well.

[Liverpool TV]

Answer is- it depends.

If you put some MPEG2 into timeline and do some segment editing and export back to MPEG2 than Edius CAN just re-encode edited bits and keep rest of the file as original, but:

- MPEG2 has to have Closed GOPs,
- set in exporter same MAX and average bitrate,
- make sure that filed order, frame size etc are the same

It does work for some files and it does not for others (Closed GOP is very important).
How to check?
Place one file over another and drag on the top file Difference Filter from Keyers/Blend tab. Result should be black- for all places except your edit points.
I've used it to fix some dropouts or bad edits in already encoded MPEG2 files and worked fine.

Hi More4K.

Would this be a result of using the MPEG2 exporter, as opposed to Burn to Disk? And with MPEG2 encodes that originated from within Edius? Thanks.

[zvit]

Ok, I might have accidentally found a solution... I created an image file from the disk (via Imgburn) then I made a virtual disk via the free Daemon tools. I mounted the iso to the virtual disk and walla! Edius Source browser sees the virtual disk and the movie! Now I right clicked it and did "Add and Transfer to bin." The Capture status progressed to 100% but I don't see the movie on the timeline or in the bin. Now what?

[zvit]

one tool that never fails me in disk capture is T5

Is there some "Segment Encode" in T5 so I can get an mpeg2 file out of the disk without having to re-encode? (Like in Edius)

[antonsvideo]

to get an mpeg file out of a DVD requires a tool called VOB merge to join all VOB into one, then you can use T5 to demux the VOB into elementary streams, therefore, no encoding takes place at all

use advanced tools, mpeg tools, demux

when you browse for the VOB, you need to choose all files in browse dialog otherwise T5 won't let you select VOB source files

[zvit]

to get an mpeg file out of a DVD requires a tool called VOB merge to join all VOB into one, then you can use T5 to demux the VOB into elementary streams, therefore, no encoding takes place at all

use advanced tools, mpeg tools, demux

when you browse for the VOB, you need to choose all files in browse dialog otherwise T5 won't let you select VOB source files

Thanks. That helps.

What about the "Add and Transfer to bin"... is this a bug that the source browser sees the movie but is not adding it to timeline and\or bin?

[antonsvideo]

Thanks. That helps.

What about the "Add and Transfer to bin"... is this a bug that the source browser sees the movie but is not adding it to timeline and\or bin?

I have not experienced that yet, but I stopped using the source browser to transfer from a DVD to Bin, because it is not reliable in any version EDIUS7

100% chance of audio video out of sync and 100% chance of green flashes in video when the DVD was created in a DVD recorder

works perfect when using the source wizard in T5 or vob merge and demux