Comments on: How to convert HDR10+ videos to SDR (for non-HDR devices)

By: calezc

calezc — Sun, 10 Oct 2021 22:46:19 +0000

Sharing for those that want to convert all files in a folder in this manner:

Create “convert.bat” file with the following text:

C:\ffmpeg\bin\ffmpeg.exe -i %1.mp4 -vf zscale=t=linear:npl=100,format=gbrpf32le,zscale=p=bt709,tonemap=tonemap=hable:desat=0,zscale=t=bt709:m=bt709:r=tv,format=yuv420p -c:v libx265 -crf 18 -preset medium -tune fastdecode “%1 (Converted)”.mp4

Create a second batch file (I called mine “LoopConvert.bat”) in the same directory with the following text:

for %%f in (.\*) do convert.bat %%~nf

Place all videos to be converted in the directory and run LoopConvert.bat.

By: soLucky

soLucky — Sun, 15 Aug 2021 06:43:32 +0000

thank you. i am looking very long for this 🙂 sad, that samsung cant do that on an 1200 Euro Smartphone. THANKS

By: Jorge Herrera

Jorge Herrera — Wed, 26 May 2021 15:41:04 +0000

is there a way to do the oposite if i have some 4k SDR movies and i wanted as HDR, its possible?

By: Alexander Ezorsky-Lie

Alexander Ezorsky-Lie — Tue, 02 Feb 2021 08:11:33 +0000

When I play my unconverted clips in VLC they are oversaturated and constrasty (not blown out). But as a filmmaker I would much prefer the flat unsaturated “RAW” look you have on the left. Do you know of any way to use ffmpeg to conved HDR to SDR and keep that flat log picture profile? Thanks a million!

By: Anoymous

Anoymous — Fri, 15 Jan 2021 15:42:42 +0000

In reply to Chris the 1 Gamer (@ChrisThe1Gamer).

Instead of typing what the author says to type in CMD, type the following:

1–> cd C:\ffmpeg\bin\
2–> convert.bat

This will do the trick.

By: Draven

Draven — Mon, 28 Dec 2020 18:50:31 +0000

Doesn’t work for me, either. I get an error saying no such directory, which isn’t true. Everything is set up exactly as per this guide.

By: Ken

Ken — Mon, 24 Aug 2020 07:06:09 +0000

Hi in response to your code above this this is baseline video profile. How set the video profile to high at 4.1?

By: Martin Ferenc

Martin Ferenc — Thu, 09 Jul 2020 18:18:33 +0000

Could you please adjust this instructions for mac os? I’ve been trying hard, no success. (Don’t know how to proceed with the batch file, I’m probably typing code incorrectly, etc.) Thanks a lot, it’d be a huge help.

By: Stephen Price

Stephen Price — Fri, 05 Jun 2020 04:16:17 +0000

Hello! Great article. I have a couple problems, though:

1: How do I actually create an executable file? I was able to follow along to that point. Whenever I open cmd.exe, it finds the convert.bat file, but can’t operate it. Do I need some other software or something?

2: This is above and beyond, but I have ~100 videos I need to convert so that I can edit them for a project. Is there a way to alter the code so that I can convert multiple at once?

Thanks in advance for any help.

By: Mr. Confused Person Who Wants to Edit Their Video

Mr. Confused Person Who Wants to Edit Their Video — Fri, 05 Jun 2020 04:11:59 +0000

Hello!

Great article. I have recorded an entire project (~100 videos) in HDR10+ only to discover that I can’t edit it in this form. No knowledge of coding so I have a couple (probably extremely basic) problems:

1: I keep running into the problem that the convert.bat file is not executable. How do I make it a proper file that can be operable?

2: Is there a way to modify this command so that it will work with multiple videos? This is above and beyond, I can do this with 100 files if I NEED to.

Thanks very much in advance!