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Author Topic: Galaxian≥ [Dragoon] Emulation part #2 : the video footage  (Read 31104 times)
DarthNuno
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« on: November 28, 2008, 09:59:13 AM »




The time is coming... Let's save the 'Project Dragoon' video footage for eternity... but also for an emulator  Roll Eyes Tongue Grin

 (check this post for the 'Attack Of The Zolgear'' video footage topic).

When I got my GT-6 (for information GT-6 is the real name/model of my machine, but we all use to say 'Galaxian Theater'  Roll Eyes Tongue), it was equipped with the 'Attack Of the Zolgear' upgrade kit. It means all the 'Zolgear' board and TWO 'Zolgear' laser disc : one for left LD player, the other one for the right LD player.

Well, as a bonus, I also got a box with 11 boards from (I presume...) original 'Project Dragoon' mission... and ONE 'Dragoon' laser disc.
Holy Jesus... too bad... only one 'Dragoon' LD.... but I need two  Embarrassed

Now... the good new is : The laser disc contains footage from left AND right LD player  Kiss It means I have the complete footage, which it sounds perfect for the emulation purpose  Smiley Kiss Kiss Kiss
Yes, the first half part of the disc shows what happens on left screen, the second part shows the right part... live is good  Grin Cool

Ok, the 'tools' of the day :

The original 'Project Dragoon' LD  arrow



Two *brand new* 160GB hard drive : one for the files, the other as a backup of course (hey, this footage is very important  Cheesy Wink) :



A capture device, this USB capture 'Easycap' pal/ntsc. I'm glad to know that is a good choice, thanks for the info Warren  Kiss [from Daphne Team], see (here)  :



A Sony LD3600D Pal/Ntsc (thanks to DCE 'Galaxy Force II man' for that free gift  Kiss) :



Let's configure the capture device/software as best as possible :



I know 576 lines is a little bit too much, but my capture device detects 525 lines when the player plays the video, so it's the only option I can choose (480 is not enough).
Anyway it's not a problem, I'll just have the crop the video.





On the following picture you see the number of lines detected : 525  arrow



No compression during the capture of course...and I need the best quality possible for the "master" video  Cool



No compression for the sound of course :



OK, setup is done, now let's that the real operation  Cheesy

Let's start with the this side :  "G≥-THEATER6 -[English]"



Go Go Go ...





During the capture  Kiss Kiss Kiss



Done... one big .AVI 41 GB file, uncompressed  arrow



That unique file include all the footage on that side : left+right footage  Cool

Now let's check the other side :  "G≥-THEATER6 -[Japanese]"



It includes exactly the same footage than the other side... and the voice are still in English ...and not in Japanese... strange. I check, double check...triple check and I see NO difference at all ... very strange.

Ok, so I don't need to capture that side  Cool

The next step will be the 'mixdown' of that huge. I'll need a lot of advices regarding that...

What compression format to use ? what will be the video size ? I don't know what the Mame-Team or Daphne Team uses to set for the 'mixdown' of such video file... Let's investigate  Wink
« Last Edit: November 28, 2008, 10:17:49 AM by DarthNuno » Logged

REVO
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« Reply #1 on: November 28, 2008, 07:47:37 PM »

It includes exactly the same footage than the other side... and the voice are still in English ...and not in Japanese... strange. I check, double check...triple check and I see NO difference at all ... very strange.

Mr DarthNuno

I believe that the LD has TWO sound trucks. One is digital and another is analog.
According to the image named "zolgear24.jpeg", 5 conectors were disconnected from G3 Laser Disk player.
I presume that the 5 connectors are video, digital sound right, digital sound left, analog sound right and analog sound left.
Please check both truck again.

REVO Japan
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funkycochise
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« Reply #2 on: November 29, 2008, 04:11:32 PM »

Hello Bruno,

regarding video footage, my 2 cts :
- one thing that hurst me first was the "composite" through cable that links you LD player and you video capture device.
  Would it be more efficient (in term of quality i mean) to make the recording using RBG instead. I suppose your device doesn't support
RBG as an input. For instance composite should be enough, but as "master"  footage, it may be a bit of waste no ?

- How many times the film does last ? For a standard compression, i would choose MPEG2, as it is the DVD standard.

Nice to see those steps soon behind.
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« Reply #3 on: November 30, 2008, 05:38:04 AM »

Hello Bruno,

regarding video footage, my 2 cts :
- one thing that hurst me first was the "composite" through cable that links you LD player and you video capture device.
  Would it be more efficient (in term of quality i mean) to make the recording using RBG instead. I suppose your device doesn't support
RBG as an input. For instance composite should be enough, but as "master"  footage, it may be a bit of waste no ?

- How many times the film does last ? For a standard compression, i would choose MPEG2, as it is the DVD standard.

Nice to see those steps soon behind.

Laserdisc IS composite video, if a laserdisc player have an rgb output it use an conposite-> Rgb converter inside
Laserdisc (NTSC ones) can carry both analog AND digital soundtrack, but ALL laserdisc game I know are only analog and i think that GT3 is not different.
A Laserdisc can hold around 30 minutes of video somewhere around 50.000 frames.
Lossyless compression is best.

For Mame you need to capture it in a special way, you need to preserve the VBI data, witch is blanked out by most capture cards. I can ask Aaron some input about it, Bruno pm me, thanks.

The other 2 connector are probably for sync-in sync-out to keep ALL tye video source in sync.

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DarthNuno
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« Reply #4 on: November 30, 2008, 04:08:02 PM »


Mr DarthNuno

I believe that the LD has TWO sound trucks. One is digital and another is analog.
According to the image named "zolgear24.jpeg", 5 connectors were disconnected from G3 Laser Disk player.
I presume that the 5 connectors are video, digital sound right, digital sound left, analog sound right and analog sound left.
Please check both track again.

REVO Japan

Hi Revo,

This is very strange. If you check now the topic 'Zolgear LD topic', you will see there is a real difference between the 'English' side and the 'Japanese' side, and so, I've captured both side for 'Zolgear'.
But when I listen both side of that 'Dragoon' disc, I don't see any difference between the two side and I'm almost certain nothing is missing : I mean I can recognize all the effects / voices, ... so it's very strange  confused I'll check again.

one thing that hurst me first was the "composite" through cable that links you LD player and you video capture device.
  Would it be more efficient (in term of quality i mean) to make the recording using RBG instead. I suppose your device doesn't support
RBG as an input. For instance composite should be enough, but as "master"  footage, it may be a bit of waste no ?

Any said all  Kiss ... Laser disc technology means composite signal internally Wink
 
For Mame you need to capture it in a special way, you need to preserve the VBI data, witch is blanked out by most capture cards. I can ask Aaron some input about it, Bruno pm me, thanks.

I've used the highest setting for my capture device (showed in pictures on this topic), but maybe it's not enough for a such job?
Yes, I guess it's capital to capture that footage in order to make it work on Mame. Can you highlight this post to Aaron and ask him some comments/advices on this  Kiss Kiss Kiss
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« Reply #5 on: December 18, 2008, 10:09:41 PM »

*quick update on this*

I've sent a sample of the big .AVI file to Warren & Aaron in order to know if the rip done would work for use in Mame.

"We've been working on a standardized method for doing captures, and I have started a "Capture Guide" that will explain the hardware/software setup, capture, and preparation for use in MAME.
The short version is that you need an ATI TV Wonder 650 (PCI, not PCIe or USB), and a custom build of VirtualDub that captures the hidden lines containing VBI data.
By the way, in your post you mentioned that you are capturing at 720x576.  This resolution is for PAL sources; for NTSC you want 720x480.  (There are 480 visible lines, which is all a standard capture card will access.  The custom setup with the ATI card gives us access to some of the hidden lines that make up the total of 525.)
"
Warren.

Got the right hardware now : ATI TV Wonder 650 pci arrow



I'm now ready to capture the LD footage again with the correct hardware.
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Dazza
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« Reply #6 on: December 19, 2008, 09:49:07 AM »

Well, you definitely can't knock your dedication  Grin Good job so far!
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DarthNuno
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« Reply #7 on: June 16, 2010, 06:46:45 PM »

...and... back on this  Wink

OK, capturing a video disc in order to be "mame compliant' is not an easy task   oppps
My LD player is not the more accurate one for this task, and ... there are so many parameters to manage : VirtualDub custom build to use, special codec, special procedures before and during the capture, extreme synchronization for starting the capture... and even with the 'Capture Guide (beta version)... it's not easy at all. In addition, I do not have all the tools to check if the capture result file will be usable...

So, the decision has been made... I'm sending my precious LD to the  *master* regarding the LD capture process : Warren  Kiss

Of course, I've to protect this laser disc for its long journey from Belgium...to USA  Cool  arrow

Let's buy a big piece of wood...



...in order to create a dedicated box. Let's set the size :



...should be fine :



...glue...



+ screws ... should be strong enough now  Wink  arrow



Here's ... the precious  Kiss  arrow





Let's protect the disc with a real vintage 'vinyl record' cover (great compilation by the way... I own it since more than 25 years  Tonguearrow





This is not a farewell... just a 'see ya soon'  Wink  arrow



I'm sure DHL will open the box when I'll bring them the box, so do not want to completely block the access to the disc. Just remove this piece of Frigolite(c) to remove the disc :



OK, the box is now ready...


 
... now, let's prepare the package...



Done... I can tell you it's extremely strong!  Cool



I'm living in a small village... I have an access to the local post at the town close to my village... but I do not want to use the federal post! Not secure enough for a such thing IMO. I need a real shipping company with a follow up... and the closest one is DHL in Luxembourg, but ...43 km to drive ... ok, not a big road trip  ...



... but I have to pass the border ... welcome in Luxembourg ...



...and 30 minutes later ... Here I am : DHL, close to the National Airport.


 
As expected, I had to open the package to show them the 'merchandise' ... after trying to explain what a laser disc game is... I finally just say : "Ok... it's an old vinyl record"  Grin And even with that explanation, they didn't find any correct category for this item  confused ... I think they putted something like 'CD Music'
So they close the package with their special tape "Checked By DHL" or something...

The package should arrive in a couple of days... Stay Tuned  Tongue
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« Reply #8 on: June 16, 2010, 07:02:21 PM »

nice story, bruno, but wouldn't it have been better to also put some kind of "stuffing" inside the wooden box around the laser disk? nevertheless, i'm pretty sure it'll arrive safe and sound!
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« Reply #9 on: June 16, 2010, 10:20:17 PM »

Uh, doesn't DHL do pick-up at your door over there ?

They do here.

I actually trust the good old post more than any of those parcel services so.....I wish you luck !
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DarthNuno
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« Reply #10 on: June 19, 2010, 12:00:46 AM »

I can breath now Smiley

In lest than three days  arrow



...the LD is now in the Warren's hands, at the other side of the world  Cool  arrow



 Space Ace Space Ace Space Ace
« Last Edit: June 19, 2010, 12:06:08 AM by DarthNuno » Logged

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« Reply #11 on: June 19, 2010, 07:24:20 AM »

wow Shocked that was incredibly fast!!!
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« Reply #12 on: July 13, 2010, 04:58:39 PM »

Waiting to see the photo of the disk back in your hands Bruno  Space Ace Space Ace Space Ace
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« Reply #13 on: July 13, 2010, 09:48:41 PM »

Waiting to see the photo of the disk back in your hands Bruno  Space Ace Space Ace Space Ace


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« Reply #14 on: July 14, 2010, 11:05:39 AM »





This must bring luck!  LOL
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