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Question on Video Encoding

Go to solution Solved by Hairless Monkey Boy,
40 minutes ago, L583 said:

do you think 12 Mbps is enough for a 1080p Blu-ray?

I can't give you a definitive answer on that because there are a lot of variables. It depends on the source material, the codec you are using, the encode settings you are using, and your own preferences.

 

I've been transcoding Blu-rays for quite some time now, and I also have my server do it using Handbrake (i7 6700). My advice? Look into constant quality encoding rather than using variable/average bitrate (and certainly rather than using constant bitrate). Personally, I encode everything using H.265 10-bit (even if the source is 8-bit) on medium speed with all filters disabled and a RF value somewhere between 16 and 28. Closer to 16 for 4k stuff that I want in very high quality (LOTR extended trilogy) and closer to 28 for things like anime or other shows that don't have as much eye-candy to begin with.

 

As an example, I recently transcoded my entire 1080p Doctor Who collection. I used the above settings with an RF value of [20 or 22 I forget] and ended up with bitrates between ~1.0Mbps and ~3.5Mbps depending on the episode. I have pretty high standards and they all look really (and consistently) good to me.

I have recently set up a Plex Server and started transfering my Movies. I have looked up recommendations for Encoding settings with Handbreak and Encoded one Movie on my 2016 MacBook Pro. Which reduced the filesize to half. But since it takes quite a while and really stresses the System I wanted to run it on my Server. My Server ist basically a really old Workstation with a Core 2 Quad. It‘s kind of a gateway into having a homeserver so it‘s fine and will be upgraded/replaced the more I get into it. 
I‘ve ran Handbreak with the same settings and it took about twice as long, which was expected and I don‘t mind, but the file was just 200 mb smaller, instead of up to 15 GB. So I tried again and the file was even a GB larger.

 

Now my question: Is this because the Core 2 Duo Quad doesn‘t support some newer Encoding that‘s more efficient, is Handbreak in MacOS better than Handbreak in Windows or does this have something to do with Windows running in a VM?

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Handbrake in Windows and Handbrake in MacOS both uses ffmpeg, so I doubt that is the case. Encoding was never an easy task and its fairly demanding, hence why nowadays those are starting to be done by GPUs.

 

Considering you didnt share your encoding options, I am going to assume you are using the defined "quality" or the slider. If you want to apples to apples comparison, use Static Video Bitrate and static FPS on both systems.

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1 minute ago, Levent said:

Handbrake in Windows and Handbrake in MacOS both uses ffmpeg, so I doubt that is the case. Encoding was never an easy task and its fairly demanding, hence why nowadays those are starting to be done by GPUs.

 

Considering you didnt share your encoding options, I am going to assume you are using the defined "quality" or the slider. If you want to apples to apples comparison, use Static Video Bitrate and static FPS on both systems.

Thanks, I‘ll try static Bitrate on both systems, do you think 12 Mbps is enough for a 1080p Blu-ray?

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40 minutes ago, L583 said:

do you think 12 Mbps is enough for a 1080p Blu-ray?

I can't give you a definitive answer on that because there are a lot of variables. It depends on the source material, the codec you are using, the encode settings you are using, and your own preferences.

 

I've been transcoding Blu-rays for quite some time now, and I also have my server do it using Handbrake (i7 6700). My advice? Look into constant quality encoding rather than using variable/average bitrate (and certainly rather than using constant bitrate). Personally, I encode everything using H.265 10-bit (even if the source is 8-bit) on medium speed with all filters disabled and a RF value somewhere between 16 and 28. Closer to 16 for 4k stuff that I want in very high quality (LOTR extended trilogy) and closer to 28 for things like anime or other shows that don't have as much eye-candy to begin with.

 

As an example, I recently transcoded my entire 1080p Doctor Who collection. I used the above settings with an RF value of [20 or 22 I forget] and ended up with bitrates between ~1.0Mbps and ~3.5Mbps depending on the episode. I have pretty high standards and they all look really (and consistently) good to me.

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I usually go for RF of 18, very slow encoder, 720p, and some amount of de-noise(usually "tape" because older movies) which on standard DVDs has so far been excellent.

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8 minutes ago, BiotechBen said:

I usually go for RF of 18, very slow encoder, 720p, and some amount of de-noise(usually "tape" because older movies) which on standard DVDs has so far been excellent.

I should experiment with the denoise features.

BabyBlu (Primary): 

  • CPU: Intel Core i9 9900K @ up to 5.3GHz, 5.0GHz all-core
  • Motherboard: Asus Maximus XI Hero
  • RAM: G.Skill Trident Z RGB 4x8GB DDR4-3200 @ 4000MHz 16-18-18-34
  • GPU: MSI RTX 2080 Sea Hawk EK X, 2070MHz core, 8000MHz mem
  • Case: Phanteks Evolv X
  • Storage: XPG SX8200 Pro 2TB NVME, 3x ADATA Ultimate SU800 1TB (RAID 0), Samsung 970 EVO Plus 500GB NVME
  • PSU: Corsair HX1000i
  • Display: MSI MPG341CQR 34" 3440x1440 144Hz Freesync, Dell S2417DG 24" 2560x1440 165Hz Gsync
  • Cooling: Custom water loop (CPU & GPU), Radiators: 1x140mm(Back), 1x280mm(Top), 1x420mm(Front)
  • Keyboard: Corsair Strafe RGB (Cherry MX Brown)
  • Mouse: MasterMouse MM710
  • Headset: Corsair Void Pro RGB
  • OS: Windows 10 Pro

Roxanne (Wife Build):

  • CPU: Intel Core i7 4790K @ Per Core 5.0GHz - 5.0GHz - 4.9GHz - 4.8GHz, Cache @ 4.6GHz, relidded with LM
  • Motherboard: Asus Z97A
  • RAM: G.Skill Sniper 4x8GB DDR3-2400 @ 10-12-12-24
  • GPU: EVGA GTX 1080 FTW2 with LM
  • Case: Corsair Vengeance C70, With Custom Side-Panel Window
  • Storage: Samsung 850 EVO 250GB, Samsung 860 EVO 1TB, Silicon Power A80 2TB NVME
  • PSU: Corsair AX760
  • Display: Samsung C27JG56 27" 2560x1440 144Hz Freesync
  • Cooling: Corsair H115i RGB
  • Keyboard: GMMK TKL(Kailh Box White)
  • Mouse: Glorious Model O-
  • Headset: SteelSeries Arctis 7
  • OS: Windows 10 Pro

BigBox (HTPC):

  • CPU: Ryzen 5600G @ 4640MHz
  • Motherboard: Gigabyte B550i Aorus Pro AX
  • RAM: Corsair Vengeance LPX 2x8GB DDR4-3600 @ 4400MHz 17-17-17-34
  • GPU: MSI RTX 3080 Ventus 3X Plus OC @ 1800MHz & .812V
  • Case: Fractal Design Node 202
  • Storage: Silicon Power A80 1TB
  • PSU: Corsair SF 600 Gold
  • Display: Samsung QN90A 65" (QLED, 4K, 120Hz, HDR, VRR)
  • Cooling: Thermalright AXP-100 Copper with Noctua A12x15 PWM Chromax Black
  • Keyboard/Mouse: Rii i4
  • Controllers: 4X Xbox One & 2X N64 (with USB)
  • Sound: Denon AVR S760H with 5.2.2 Atmos setup.
  • OS: Windows 10 Pro

Harmonic (Game/Plex/Other Server):

  • CPU: Intel Core i7 6700
  • Motherboard: ASRock FATAL1TY H270M
  • RAM: 48GB DDR4-2133
  • GPU: Intel HD Graphics 530
  • Case: Antec Three Hundred
  • Storage: Inland Premium 512GB NVME, Sabrent 1TB NVME, Blu-Ray Drive
  • PSU: Corsair CX450
  • Display: None
  • Cooling: Noctua NH-U14S with 2X Fractal Venturi HP-12
  • Keyboard/Mouse: None
  • OS: Windows 10 Pro

NAS:

  • Synology DS216J
  • 2x8TB WD Red NAS HDDs in RAID 1. 8TB usable space
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15 minutes ago, Hairless Monkey Boy said:

I should experiment with the denoise features.

I start with ultralight and then do the test render, and continue up to medium to see if there is an improvement. After about medium setting it starts to loose detail as it aggressively de-noises.

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