Scenalyzer creates extra 1 frame-video?

[mlsnag]

I'm using Scenalyzer and every time it splits parts of the videotape per date and time, it creates extra 1frame-videos beside the normal videos. If the tape has no date/time info it creates just one video. Any explaination?

Thank you!

[lollo2]

Normal behaviour; if set to do so, SCLive split the file at scene change and create a dummy 1-frame video at scene change, that can be used for indexing of as reference for further post-processing. Delete it if you do not need it.

Remember to run something like "AVPS DV Analyzer" on the transfered file for video error concealment detection to validate there are no transfer errors

[mlsnag]

Quote:

Originally Posted by lollo2

Normal behaviour; if set to do so, SCLive split the file at scene change and create a dummy 1-frame video at scene change, that can be used for indexing of as reference for further post-processing. Delete it if you do not need it.

Remember to run something like "AVPS DV Analyzer" on the transfered file for video error concealment detection to validate there are no transfer errors

Thank you for your response.

There was some errors according to Scenalyzer indeed.
I run DV Analyzer 1.4.2 but I have no idea what I am supposed to do. Is there a way to fix the errors? Or it is what it is?

Some results:

Frame Count: 51506

Frame count with video error concealment: 34 frames
Total video error concealment: 49998 errors ( 49998 "A" errors)

Percent of frames with Error: 0.07%
Percent of frames with Error (including Arbitrary bit inconsistency): 0.07%
Percent of frames with Video Error Concealment: 0.07%


Frame Count: 3002

Frame count with video error concealment: 1 frames
Total video error concealment: 31 errors ( 31 "A" errors)

Absolute time DV timecode range Recorded date/time range Frame range
00:00:00.000 00:00:00:00 - 00:02:00:01 2003-08-17 13:37:39 - 2003-08-17 13:39:42 0 - 3001

Percent of frames with Error: 0.03%
Percent of frames with Error (including Arbitrary bit inconsistency): 0.03%
Percent of frames with Video Error Concealment: 0.03%

Frame Count: 6548

Frame count with video error concealment: 3 frames
Total video error concealment: 1279 errors ( 1279 "A" errors)

Absolute time DV timecode range Recorded date/time range Frame range
00:00:00.000 00:00:00:00 - 00:02:08:11 2003-01-16 12:27:48 - 2003-01-16 12:29:56 0 - 3211
00:02:08.480 00:00:42:04 - 00:02:52:02 2003-01-16 12:18:39 - 2003-01-16 12:20:53 3212 - 6460
00:04:18.440 00:02:19:21 - 00:02:23:07 2003-01-16 12:16:27 - 2003-01-16 12:16:30 6461 - 6547

Percent of frames with Error: 0.05%
Percent of frames with Error (including Arbitrary bit inconsistency): 0.05%
Percent of frames with Video Error Concealment: 0.05%

[lollo2]

Quote:

I run DV Analyzer 1.4.2 but I have no idea what I am supposed to do. Is there a way to fix the errors? Or it is what it is?

You sould be able to see the defect while stepping frame-by-frame in a NLE. It will appear as a bad frame of a frame with macroblocks in some area, typical of currupted digital decoding.

What happens is that 1 or more consecutive frames shows DV concealment because tape drops. Generally it happens only on few frames in whole capture. You can capture again the segments with concealment trying to get as many correct blocks/frames as possible. Then in a NLE you can splice the frames or choose the best frames (less macroblocks).

[mlsnag]

Quote:

Originally Posted by lollo2

You sould be able to see the defect while stepping frame-by-frame in a NLE. It will appear as a bad frame of a frame with macroblocks in some area, typical of currupted digital decoding.

What happens is that 1 or more consecutive frames shows DV concealment because tape drops. Generally it happens only on few frames in whole capture. You can capture again the segments with concealment trying to get as many correct blocks/frames as possible. Then in a NLE you can splice the frames or choose the best frames (less macroblocks).

The errors according to Scenalyzer are "glitches" like the photo (I can find them by pressing N)
I just noticed that its always the first frame of a new scene/clip. So maybe it won't change anything If I tranfer the tape again?


snapshot_06.16.445.png

[lollo2]

Quote:

So maybe it won't change anything If I tranfer the tape again?

Probably yes.

You can try do do not split at scene change or increase the dead time for scene detection and check if the bad frame disappears.

[latreche34]

Just capture the entire tape and do the splitting later as needed, You may not need a file for every scene, and I don't think anybody does, sooner or later you will end up stitching them back together anyway, Scenes should be split by event not by each press of Stop/Record button.