I am ready to rip my hair out need help capturing video from Camcoder

[poisondeathray]

RE: "(20230717-1246).avi"
Y channel has 50 fields/s but the U,V channels consist of duplicate fields - they are effectively 25 fields/s for color.

Yes indeed.
Chroma motion seems however to be synchronous with the luma for the bob-deinterlaced 4:2:0 encodes of post#15, no?

Yes . But the source "7-1243).avi" also exhibits the issue

deinterlaced.mp4 has false chroma motion probably from temporal deinterlacer (QTGMC?), but it looks ok given the source quality. So QTGMC "fixes" the problem in a way; QTGMC also fixes it for "(20230717-1246).avi" . yadif / bwdif have the problem because they don't have the temporal characteristics of QTGMC

The only reason I noticed this was the yadif sample had problems, then looked at the source

I'd argue it's better to get a proper capture, assuming the chroma was "normal" in the first place. If not, then QTGMC to the rescue

[Sharc]

deinterlaced.mp4 has false chroma motion probably from temporal deinterlacer (QTGMC?), but it looks ok given the source quality. So QTGMC "fixes" the problem in a way; QTGMC also fixes it for "(20230717-1246).avi" . yadif / bwdif have the problem because they don't have the temporal characteristics of QTGMC

The only reason I noticed this was the yadif sample had problems, then looked at the source

Good catch!

[lollo]

For OP, display of the problem discovered by master poisondeathray (U and V channels do not "move" as Y channel):


[Attachment 72526 - Click to enlarge]

edit: for a proper interlaced material the capture should be:


[Attachment 72527 - Click to enlarge]

[MrKool]

For OP, display of the problem discovered by master poisondeathray (U and V channels do not "move" as Y channel):


[Attachment 72526 - Click to enlarge]

edit: for a proper interlaced material the capture should be:


[Attachment 72527 - Click to enlarge]

lollo i am using this guide to cqapture my source http://aaproductions.net/amarectv.htm are you saying that during my capture i am somehow missing other channels?

[poisondeathray]

are you saying that during my capture i am somehow missing other channels?

You're missing samples over time from the U,V channels (the color information channels) in your 2 AVI videos - They only have 1/2 the color samples over time . Instead of 50 samples / second, there are 25 samples /sec consisting of duplicates to make up "fake" 50 samples/sec . Since the greyscale information has 50 real samples/sec, this causes a misaligment of color during motion - a sort of color flicker

It's not clear what is the underlying cause of the problem - it could be on specific tapes (recorded like that), or maybe some issue with a specific camera, or maybe some issue with the capture setup or process . You'd have to systematically do some tests to figure it out

[MrKool]

[Attachment 72530 - Click to enlarge]

so if i go to the options of Lagarith i get the following screen and in the Mode it says RGBA, RGB, YUY2, YV12 does it matter which one i choose?

[poisondeathray]

so if i go to the options of Lagarith i get the following screen and in the Mode it says RGBA, RGB, YUY2, YV12 does it matter which one i choose?

No; lagarith is a special case in that it uses what pixel type is fed into the encoder when you use RGB(default) . e.g. If YUY2 data is sent, lagarith will use YUY2 even if you have RGB(default) selected .

This is not the cause for the U,V channel defect. Even if there was a pixel type conversion issue (e.g. maybe it converts to RGB in a progressive vs. interlaced manner), there would be other types of artifacts - not the ones you are seeing here

[Krazern]

thanks for the reply guys here are some updates

1. The camera and the tapes i have are recorded in PAL format and i am in the US so not alot of options to buy another camera that can play these tapes.
2. These are 8MM Video Cassetts
3. The tapes should be in decent condition as they have not been over written most of them were recorded one time and than put away.

here is what the video looked like after i used your guide to capture using AmarecTV and Lagarith in lossless

[Attachment 72458 - Click to enlarge]

I got the same washed out path on video when i tried AV2HDMI converter paired with hdmi usb capture (garbage setup). It appeard on almost every tape but only when this setup was used. With different capturing equipment it wasnt happening. Have you tried capturing with other devices or maybe tried to play it directly on TV?

[MrKool]

Ok so i had not tried the dazzle once i had everything working with vidbox but when i went back to Dazzle the weird color banding on the top goes away and the video looks much better but it drops frames like 10 out of a 100 or something where it is noticeable while the same settings with the Vidbox captures with no dropped frames on Amarectv. The kicker is it drops frames when i am not even capturing it just drops frames with black screen

[Sharc]

Ok so i had not tried the dazzle once i had everything working with vidbox but when i went back to Dazzle the weird color banding on the top goes away and the video looks much better but it drops frames like 10 out of a 100 or something where it is noticeable while the same settings with the Vidbox captures with no dropped frames on Amarectv. The kicker is it drops frames when i am not even capturing it just drops frames with black screen

So your setup which does not produce the color banding is AmarecTV + Lagarith + Dazzle? Or does your Dazzle convert to mpeg2 or H.264 on the fly?
Upload a short sample of the capture so we can take a look whether the Chroma (U,V) is now handled correctly.

[MrKool]

[Attachment 72543 - Click to enlarge]


AmarecTV + Lagarith + Dazzle

[Sharc]

deleted

[lollo]

lollo i am using this guide to cqapture my source http://aaproductions.net/amarectv.htm are you saying that during my capture i am somehow missing other channels?

The capture software should not be an issue.

However, I am lost, because I do not understand what is your workflow. Please specify the capture card you are using and eventually provide a raw lossless capture with the Dazzle and with the Vidbox, so we can better debug

[Sharc]

[Attachment 72543 - Click to enlarge]AmarecTV + Lagarith + Dazzle

The new dazzle capture seems to be basically ok. Interlaced TFF. The former color issues (banding and chroma advancement for both fields) seem to have gone.
The black level is a bit high, but this something for later discussion.

Now you should tackle the reason for the dropped/duplicated frames.
- Stop any other tasks running in the background (virus scanner, downloads, indexers etc)
- Maybe reboot your PC before starting the capturing
- Defragment the HD?
- .........

[lollo]

The new dazzle capture seems to be basically ok

Sharc, where did you find the Dazzle capture? I do not see it...

[Sharc]

The new dazzle capture seems to be basically ok

Sharc, where did you find the Dazzle capture? I do not see it...

In his link post#41 which failed to download with Firefox but worked with Edge

[MrKool]

[Attachment 72543 - Click to enlarge]AmarecTV + Lagarith + Dazzle

The new dazzle capture seems to be basically ok. Interlaced TFF. The former color issues (banding and chroma advancement for both fields) seem to have gone.
The black level is a bit high, but this something for later discussion.

Now you should tackle the reason for the dropped/duplicated frames.
- Stop any other tasks running in the background (virus scanner, downloads, indexers etc)
- Maybe reboot your PC before starting the capturing
- Defragment the HD?
- .........

I don't think my computer is the issue i have a Aleinware R13 with 3090 GPU and 24 Core i9 Processor, NVME 1TB HD with read and write speed in access of 2500 MB/s i can run all games at Full resolution and settings at Ultra on a 4k monitor without any issues

here is the task manager with Amarectv running


[Attachment 72544 - Click to enlarge]

Also as i said Dazzle drops frames even if i am not capturing anything which is kinda odd. May be it is a windows 11 issue? i heard they butchered capturing in windows 11

[lollo]

The new dazzle capture seems to be basically ok

Sharc, where did you find the Dazzle capture? I do not see it...

In his link post#41 which failed to download with Firefox but worked with Edge

I am with Edge, Window10, and cannot open anything. Nevermind, if you have it, he's in good hands

[Sharc]

I am with Edge, Window10, and cannot open anything.

Here his file of post#41 again:

[Sharc]

I don't think my computer is the issue i have a Aleinware R13 with 3090 GPU and 24 Core i9 Processor, NVME 1TB HD with read and write speed in access of 2500 MB/s i can run all games at Full resolution and settings at Ultra on a 4k monitor without any issues
Also as i said Dazzle drops frames even if i am not capturing anything which is kinda odd. May be it is a windows 11 issue? i heard they butchered capturing in windows 11

No idea what's wrong. I have a much older/slower PC and I am on W11 and use it for capturing with AmarecTV. I can't help much with Dazzle as I don't have it.

[MrKool]

I don't think my computer is the issue i have a Aleinware R13 with 3090 GPU and 24 Core i9 Processor, NVME 1TB HD with read and write speed in access of 2500 MB/s i can run all games at Full resolution and settings at Ultra on a 4k monitor without any issues
Also as i said Dazzle drops frames even if i am not capturing anything which is kinda odd. May be it is a windows 11 issue? i heard they butchered capturing in windows 11

No idea what's wrong. I have a much older/slower PC and I am on W11 and use it for capturing with AmarecTV. I can't help much with Dazzle as I don't have it.

what are you using to capture though what device? i think the issue is dazzle and its drivers for windows 11.

[Sharc]

what are you using to capture though what device? i think the issue is dazzle and its drivers for windows 11.

AmarecTV+Hauppauge USB live2 (or I-O Data GV-USB2).
With the Hauppauge USB live2 I would strongly recommend to use one of the recommended DVD recorders in passthrough in order to "convert" the composite signal of your videocam to an S-Video. The DVD recorder acts as a Y/C filter which is poor for the Hauppauge USB live2 composit input. The I-O Data GV-USB2 has a better internal Y/C filter which may avoid the extra DVD recorder.

FWIW here the deinterlaced version of your Dazzle capture - with the dropped frames of course.

[lollo]

I don't think my computer is the issue i have a Aleinware R13 with 3090 GPU and 24 Core i9 Processor, NVME 1TB HD with read and write speed in access of 2500 MB/s i can run all games at Full resolution and settings at Ultra on a 4k monitor without any issues

It does not matter. While capturing you are continously writing data to the disk, which in your case is the same as the OS. And you should do nothing else. Disable internet, antivirus, all not essential background processes, etc., do nothing, do not even touch the mouse

As Sharc said, the Dazzle capture apparently does not have the 25 field chroma problem (I did not check everywhere), but is affected by inserted frames and probably by dropped frames. Check the log of the capture


[Attachment 72552 - Click to enlarge]

to see where the inserted/dropped frames occur, eventually capture once more to see if they are exactely at the same time, meaning a tape problem, or not.

[Sharc]

It does not matter. While capturing you are continously writing data to the disk, which in your case is the same as the OS.

You may also capture to an external USB 3.0 HDD or SSD to offload the disk with the OS.

[lollo]

You may also capture to an external USB 3.0 HDD or SSD to offload the disk with the OS.

Maybe. But there is the risk to overload USB internal data management instead, especially for laptop. I had troubles in the past. Much better to write to an internal secondary disk. YMMV.

[Bwaak]

Besides turning off unneeded services and apps, I suggest turning off the internet. It significantly improved the situation for me.

[MrKool]

I don't think my computer is the issue i have a Aleinware R13 with 3090 GPU and 24 Core i9 Processor, NVME 1TB HD with read and write speed in access of 2500 MB/s i can run all games at Full resolution and settings at Ultra on a 4k monitor without any issues

It does not matter. While capturing you are continously writing data to the disk, which in your case is the same as the OS. And you should do nothing else. Disable internet, antivirus, all not essential background processes, etc., do nothing, do not even touch the mouse

As Sharc said, the Dazzle capture apparently does not have the 25 field chroma problem (I did not check everywhere), but is affected by inserted frames and probably by dropped frames. Check the log of the capture


[Attachment 72552 - Click to enlarge]

to see where the inserted/dropped frames occur, eventually capture once more to see if they are exactely at the same time, meaning a tape problem, or not.

I did turn on the write file feature per the instructions here is the debug file

[MrKool]

ok i think i have it figuerd out mostly the dazzle device drivers for the video card were from 2014 i found a newer set of drivers that i had to manually force install that were from 2020 and now it seems that during normal play back it does not drop frames and the colors and stuff looks decent. i am attaching both the video and the report file please check and let me know if this is the best i am gonna get so i can start capturing.

[poisondeathray]

ok i think i have it figuerd out mostly the dazzle device drivers for the video card were from 2014 i found a newer set of drivers that i had to manually force install that were from 2020 and now it seems that during normal play back it does not drop frames and the colors and stuff looks decent. i am attaching both the video and the report file please check and let me know if this is the best i am gonna get so i can start capturing.

You have drops in (20230719-2001).avi - there are clear jumps in the motion. The drops are also reported in the log

[MrKool]

ok i think i have it figuerd out mostly the dazzle device drivers for the video card were from 2014 i found a newer set of drivers that i had to manually force install that were from 2020 and now it seems that during normal play back it does not drop frames and the colors and stuff looks decent. i am attaching both the video and the report file please check and let me know if this is the best i am gonna get so i can start capturing.

You have drops in (20230719-2001).avi - there are clear jumps in the motion. The drops are also reported in the log

You see jumps in the video? I am not seeing them also the report file at the bottom says

Compression : FourCC=LAGS, Description=Lagarith Lossless Codec
Setting : 720*576, 25.00fps
Original Video Size: 867MByte
Compress video Size: 334MByte(38%, 1/2.596), 7658KB/s(61271kbps)
Frame count= 1097f, Drp= 0f, Avg Enc=4.047ms, Avg Cmp= 38%

Doesn’t it mean it has 1097 frames with 0 drops?