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  #1  
09-17-2022, 01:13 PM
vmax vmax is offline
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What are the recommended TotalCode Studio settings when encoding a 4:2:2 15mbps+ MPEG-2 archive copy as outlined by LS? Source material is a video tape captured losslessly.

Here is what I currently use -- any optimization tips would be highly appreciated:

1. Preset "Custom : MPEG-2 422".

2. Video settings as defaults except for changing "Color Range" to "Full", and Rate to "15000kbps". (Please see attachment 1.)

3. Audio settings as defaults. (Please see attachment 2.)
- What about the rate, is the default 224kbps ok, or is a higher value advised?

4. Video Encoder's advanced settings as defaults. (Please see attachments 3, 4, and 5.)
- However, would it be good to change Level from "Main" to "High" or "High 1440" on Advanced Settings tab (please see attachment 4)? LS mentioned elsewhere "MPEG-2 422@HL encode" as something to consider. LS, if you're reading this, is that the setting you refer to by "HL"?

Thanks for any tips!


Attached Images
File Type: png TotalCode 1 Video.png (59.2 KB, 8 downloads)
File Type: png TotalCode 2 Audio.png (52.7 KB, 6 downloads)
File Type: png TotalCode 3 Basic Settings.png (20.9 KB, 7 downloads)
File Type: png TotalCode 4 Advanced Settings.png (39.8 KB, 8 downloads)
File Type: png TotalCode 5 Miscellaneous.png (17.1 KB, 7 downloads)
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  #2  
09-18-2022, 05:32 AM
themaster1 themaster1 is offline
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High 1440 that's for HD, as far as SD archival; high, 4.2.2, 15 Mbps and most importantly (if you can set it) i frames only so every frame is an i frame (all informations in the each frame) but very inefficient in terms of coding , and big file.

Audio: the high the better , lpcm if you can
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  #3  
09-18-2022, 12:43 PM
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lordsmurf lordsmurf is offline
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There are a lot more tweaks to be made, but it'll be next weekend before I can reply.

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  #4  
09-24-2022, 03:35 PM
joonas joonas is offline
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Following.

-- merged --

Can anyone discuss about it besides lordsmurf?
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  #5  
10-02-2022, 02:04 PM
themaster1 themaster1 is offline
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discuss then ...
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  #6  
10-04-2022, 04:57 AM
joonas joonas is offline
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Well my system for rendering is pretty powerful, that is why I am using P/Q 31. Also I am using "DC Precision" 8-bit to keep it close to original.

Also noting that I am in PAL/(ME)SECAM.
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  #7  
10-04-2022, 07:53 AM
lollo2 lollo2 is offline
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Quote:
Can anyone discuss about it besides lordsmurf?
I do not see a single reason for encoding to MPEG2 today.

For archive and watching on PC and YouTube upload, I just keep/use the original lossless capture (HuffYUV in my case).

For encoding and watching on TV, I use h264 at crf=17.

A channel on S-VHS / VHS capture and AviSynth restoration https://bit.ly/3mHWbkN
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  #8  
10-04-2022, 08:13 AM
joonas joonas is offline
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Well as I collector of specific theme I want to exchange the files with others so the MPEG2 for us is the general consensus in which we have agreed on.

I also keep backup of my original AVI captures and encode them to h264 if necessary (streaming etc).
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  #9  
10-04-2022, 08:32 AM
themaster1 themaster1 is offline
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Dc precision= higher is better but old dvd players may be in trouble with 10 bits.
It's more important for cartons i believe. This setting control the transition from full white to full black. 9 bits is fine, 8 is old school
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  #10  
10-04-2022, 10:07 AM
lollo2 lollo2 is offline
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Quote:
What are the recommended TotalCode Studio settings when encoding a 4:2:2 15mbps+ MPEG-2 archive copy
Quote:
Well as I collector of specific theme I want to exchange the files with others so the MPEG2 for us is the general consensus in which we have agreed on.
In the first question you asked about "archive copy". For me, nothing except the original capture is worth for archiving.

The distribution agreed format between collectors can be whatever you prefer

A channel on S-VHS / VHS capture and AviSynth restoration https://bit.ly/3mHWbkN
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  #11  
10-04-2022, 09:05 PM
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lordsmurf lordsmurf is offline
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Quote:
Originally Posted by vmax View Post
What are the recommended TotalCode Studio settings when encoding
Video is math. When it comes to encoding, the main speed AND quality differentiator is rounding and decimal places. Followed by the search radius, intraframe and interframe, sort of the pre-math dragnet of the facts to run the equations.

Bitrate is only part of it. But most encoders templates everything, so you're not aware of what's happening, or that options even exist.

So let's take MPEG-2 @ 4:2:2 as the example.

Yes, MPEG2 422 custom base setting.

The GOP, I-frame distance, which controls compression and image quality deterioration per frame. Higher gives better compression, better use of the bitrate temporally, but can have visuals break down in a pulsing way. Reduce frames, less pulse/break, but then less efficiency of bitrate allocated. It's content based. I generally leave default, or reduce, never extend.

In MC, the "noise sensitivity" motion setting is really defaulted too high in most cases, set to 3.

I've actually covered most of this before. For example, look at this post:
https://www.digitalFAQ.com/forum/vid...html#post17999

MP2 audio @ 256 or 384 stereo is far more suggested.

The profile really depends on usage. Never 1440, that's for HDV res. Just @422 in most cases.
HL = high
ML = main

Quote:
Originally Posted by themaster1 View Post
15 Mbps and most importantly (if you can set it) i frames only so every frame is an i frame (all informations in the each frame) but very inefficient in terms of coding , and big file.
I would never do that. If you want I-only, then 50mbits. Otherwise find sweet spot, balance GOP and bitrate.

Quote:
Audio: the high the better , lpcm if you can
Since LPCM is almost never seen as compliant, never do it. High compression MPEG Layer or AC3 Dolby only.

Quote:
Originally Posted by lollo2 View Post
I do not see a single reason for encoding to MPEG2 today.
There are many. A main issue the utter failure for most streaming devices to properly deinterlace H.264. Those mostly expect progress H.264. But there are others, such as MPEG not compromising sharpness (instead adding blocks), while H.264 can turn to mush even at higher CRF/bitrates..

Quote:
I just keep/use the original lossless capture (HuffYUV in my case).
Sometimes it's just not viable, nor even prudent. For example, MPEG can be salvaged with missing data. With the AVI, you're usually screwed, it's fully failed.

Quote:
Originally Posted by joonas View Post
Well as I collector of specific theme I want to exchange the files with others so the MPEG2 for us is the general consensus in which we have agreed on.
Yep.

Quote:
Originally Posted by themaster1 View Post
Dc precision= higher is better but old dvd players may be in trouble with 10 bits.
It's more important for cartons i believe. This setting control the transition from full white to full black. 9 bits is fine, 8 is old school
Yep, 9.

Quote:
Originally Posted by lollo2 View Post
The distribution agreed format between collectors can be whatever you prefer
Nope. Most higher-end groups have minimum standards, not torrent kiddies that upload butchered crap like most. MPEG-2 is an adhered standard to some.

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  #12  
10-05-2022, 03:08 AM
lollo2 lollo2 is offline
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Quote:
There are many. A main issue the utter failure for most streaming devices to properly deinterlace H.264. Those mostly expect progress H.264.
There are none. A bad handled interlaced h264 is generally because encoding errors by the user, not because the device.
All DVB-S and DVB-T broadcast, addressing then set-up boxes and TVs all around the world, switched since longtime form MPEG2 to MPEG-4 AVC and interlaced programs are still broadcasted and well displayed.

Quote:
But there are others, such as MPEG not compromising sharpness (instead adding blocks), while H.264 can turn to mush even at higher CRF/bitrates.
There can be some boundary exception (that I never met nor seen, if you have any example show it here), but h264 is far superior to MPEG2 in all aspects.

Quote:
Sometimes it's just not viable, nor even prudent. For example, MPEG can be salvaged with missing data. With the AVI, you're usually screwed, it's fully failed.
It is the opposite. If a data corruption occurs, a lossy compressed file like a MPEG2 stream propagates the error to all P-frames and B-frames. Even using I-frames only, the compression of data propagate the error to larger area inside the frame.
For the most important material, a good flow is to run ICEECC or similar on the archive and create 10% parity files in case of future data corruption and store the original files on 2 different hard drives.

Quote:
Nope. Most higher-end groups have minimum standards, not torrent kiddies that upload butchered crap like most. MPEG-2 is an adhered standard to some.
A group of friends can share MPEG1, Divx, MPEG2, MPEG4-AVC or whatever format they wish, I can understand.
For distribution, the better format today is h264. For archive is the original capture.
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