MPEG1 Beta location.

Danr

Administrator
Staff member
Build 269 has been removed. Please don't do further testing until Build 270 is posted. Thanks..
 

Danr

Administrator
Staff member
Build #270 has been uploaded. This version should fix the pixelation problem in #269.

Not addressed yet are:

1) Ability to load files into Nero without recoding. Hopefully this will be fixed by Monday.

2) Gary's buffer overflow.
 

Gary

New member
Dan, files made on the old ADS Instant DVD were REALLY odd, so you may see some stuff you haven't seen before.
 

Danr

Administrator
Staff member
Build 271 has been posted. Please check it out. It should fix the audio ring buffer overflow problem. In case anyone is interested the COM interface is now documented and the tlb file is included with the installation.

The import into NERO has NOT BEEN FIXED. I know what the problem is, hope to get it out shortly.
 

Gary

New member
Hi Dan,

Some good news and bad news.

1st, the good news! The 271 beta does not seem to have the overflow problem, and I was able to edit the same file that the other beta could not.

The bad news is that somehow, it has introduced some video glitches, where the video stops, or stutters for a second, but only seems to happen when viewed with WinDVD. The same edited file when played back in real player or in VRD, does not seem to have the video glitches. WinDVD does NOT have any glitches when viewing the original file however, so the glitches have been introduced somehow by the editing process.
 

Danr

Administrator
Staff member
Hi Gary, are the glitches near the editing points? What about Build 270 were you able to get enough output put together to see if it had a similar problem?

Did you check MPEG2 in WinDVD?
 

Gary

New member
Hi Dan,

No, the first glitch I see is at about 26 seconds time from the start. The first edit point is at 3 min, 6 sec.

I was not able to get that far in the other beta, so don't know.

I always check out my Mpeg2 edits in WinDVD, to make sure there is no problem before I burn the file, but have never noticed any glitches before.

WinDVD uses the same Intervideo codecs as the Hauppauge PVR 250 does.

I will try an edit of the edited file and see if that does the same thing. If it does, I will upload a copy with the glitch for you to look at.
 

Gary

New member
Dan,

When I edit the edited file, I don't see the glitch. Seems odd. Sync seems fine so far too. The BIG test will be editing out the commercials from a 3 1/2 capture also done with the ADS Instant DVD. I am going to wait to do that until a few more betas come out, as it's at least 1 hour worth of work to edit.
 

Danr

Administrator
Staff member
Gary, use the trim and upload the 1st 1 minute of the file with the glitch. I have windvd and would like to see what's going on.
 

Gary

New member
Dan,

I will upload a short file called "glitch.mpg" to upload/Gary for you. The glitch occurs at about 26 to 27 seconds. I had to trim from the start of the file to catch the glitch.
 

Danr

Administrator
Staff member
Build 272 is in the MPEG1 beta folder (see first msg of this thread). Fixes the following:

1) Gary's "glitch".

2) Can now open the videos in NeroVision with an error or warning msg.

3) Audio plays properly from the beginning of the file.

NOTE: Please make sure you go to Tools>Options>Advanced Stream and set the MPEG1 box to 2324 - VCD Standard. Other packets lengths may not load in NeroVision.
 

Gary

New member
"Gary's glitch"

Wow, sounds like some new kind of dance craze! :)

Dan, so far, so good on the latest beta. What was the cause of the glitch?
 

Danr

Administrator
Staff member
In section of the MPEG1 file, the output bitrate was defaulting to our MPEG2 standard of 10Mbps instread of the 1.4Mbps of VCD. Easy fix, tough to find :)
 

Gary

New member
Dan,

VCD standard bitrate is actually 1150 kbps, not 1400.

I dug out my DVD that has the unedited 4 1/2 hours of the 2002 Winter Olympics. It's about an hour or more of editing at least, so will wait to edit that file until you think it's safe. If it can edit that file and not lose sync, you will have created an VCD editor that will edit a file that NO other editior to date has been able to deal with! Keeping my fingers crossed!
 

Danr

Administrator
Staff member
Gary, We are both right. The 1150 is the video bitrate, as represented in the video sequence header. The 1400 is the combined audio and video bitrate as represented in the mux_rate of the program stream packet header.

Anxiously awaiting the results of your tests.
 

Gary

New member
Hi Dan,

As the audio bitrate is 224, wouldn't that make the combined bitrate 1374?

I will try to edit that HUGE file this weekend, IF you think this beta has enough of the bugs gone?

Let me know.

Thanks
 

Danr

Administrator
Staff member
That's for the elem streams only. Then you have to add the overhead for the PS overhead.

These figures came from commerical VCD files and ones recorded by off the air.
 

Gary

New member
OK,

Do you think the current beta is fixed enough that I should try to edit that HUGE file?
 
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