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My nvidia shadowplay gaming video gets dark after processing :(
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my youtube video gets darker after upload and iam sure its because of youtube , things i tried -- gone back to 1 year old nvidia driver uploaded test video its come out dark new driver it come out dark on youtube , strange thing is i see my raw file and its bright and good .. only happen when i upload to youtube , so i remember that i have 1 year old small clip video from 2019 at that time there was no issue , and even 2019 video come out dark so its not nvidia prob its a youtube making video dark something is broke in youtube this need to be fix :(
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I bet there’s a change in your codec.
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i do not know what is codec for it start happing to me from last month i have been uploading video last 6 years never had prob like that ,, i need youtube fix that
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Provide a link to one of your problem videos.
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this is the video its come out to much dark with contrast its same video screenshot i share above with original raw file image.. original file on my pc i have deleted to save space but i already checked my raw file and i confirm it was bright and good only happen when i upload to youtube .. check this video out --- some area are way to much dark in it --  https://youtu.be/nWdjzxj0t-E
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This is a known issue. Temporary fix can be found  by using creator studios.  Using the color adjustments.
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thanks i will try to check that now   ., and also as u say its a known issue .. that mean youtube are working on it to resolve it in future ??
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Yes but be aware that it isn’t a priority right now.
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hey bro i can't find color adjustment in youtube creator studio only trim and blur options in edit video
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Let me look it up. This was found through another user.
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ok i wait brother thanks for your assist
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This is what he wrote so I was off a tad.

“ going to the "editor" and using "revert to original" 
fixes the issue temporary”

Try that and let me know if it even gives you an revert option.
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ok i find the way to click on revert back to original.. it say now video in processing , when i its finish i will get back to u and tell u my results thanks
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i am having the same problem and cannot find revert to original
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Here is my example how worse it is when uploaded
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abdulla afghanistan Let’s find out how his worked out first.
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so after processing finished but nothing changed its stll dark mate sadly ☹☹☹
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Let me try and find another solution.
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nothing works and even youtube has no idea what to do....had a chat with creator support
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I think I worked out an easy fix for Shadowplay recordings. No need for re-encoding. 

I used ffmpeg via Windows command line, but I'm pretty sure most other video encoding/editing software should be able to do the same, as far as they expose this h264_metadata option. I didn't find a way to edit the h264_metadata tag without duplicating the file. Please let me know if there is a tool to do so. ffmpeg is an open-source freeware available from its official website https://ffmpeg.org/ 

command line:
​ffmpeg  -i "E:\Video\source_file.mp4" -bsf:v h264_metadata=video_full_range_flag=1 -c:v copy -c:a copy "E:\Video\destination_file.mp4"

Replace "E:\Video\source_file.mp4" with your source file and replace "E:\Video\destination_file.mp4" with your desired destination. For HEVC files, use -bsf:v hevc_metadata (replace 'h264' with 'hevc'). It involves no encoding, only copying the file, so it is as fast as your disk is.



Why would it work? The key point is that Shadowplay generates a BT601 color matrix with a full color range (0-255). This is a rare combination, since BT601 is regularly used with a partial color range (16-235). Consequently, whenever YouTube sees BT601,  it takes the video as a partial color range by default. 

The command line adds a tag to the mp4 file, saying explicitly "hey this is full color range" and luckily YouTube understands that.

---------------

For those who are unfamiliar with ffmpeg, I found a Youtube video that demonstrates how to use ffmpeg: https://www.youtube.com/watch?v=MPV7JXTWPWI
Please note this video is not made by me and may not even be the best match. It only turned out to me in a quick search. There are numerous tutorials on YouTube about ffmpeg if you search for "ffmpeg" as the keyword.
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Okay I got it but did this

2. I've copied the fine to bin folder used this command >
ffmpeg -i input.mp4 -vf "scale=in_color_matrix=bt601:out_color_matrix=bt709" output.mp4
the video had to convert after it did I uploaded it on YT and it wasnt too dark anymore. Thank you again brother!
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You probably missed this part
-c:v copy -c:a copy 
It instructs ffmpeg to skip re-encoding and just copy the streams.
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I want to try this out but I have NO idea how to use comand line... Can you dumb it down plz ?
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Same here, any step by step instructions?
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Is there a way to do this in a gui instead of command line?
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Command line is actually the easier and preferred method because there are a TON of options in FFMPEG that would make any GUI look like a New York subway map.  Just copy the command line by Serena above into a batch file (.bat) in Windows and run it, voila.  Can't think of any easier way than that.  A batch file is a regular text file that has commands in it.  Create a text file (.txt) and its extension to .bat and you got a text file.  All the old-timey DOS users know what batch files are.
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If your not Familiar with command line prompts the above instructions would be a challenge. Anyone in their right mind would avoid giving step by step instructions to this,  Basic run down to get you started. When you see [ ] these brackets that’s were you need to add your own information. 

ffmpeg.EXE is the executable file will be running. To make this as simple as possible move that file to the same folder were your video is located.

Start the command prompt. The file name is CMD.EXE. Type it in cortina and run as Administrator. 
The command prompt looks like C:\> it may include a folder name. Type
cd [c:\users\John\video]
Now your ready to run your command.
Type ffmpeg [using the command that was suggested]

My guess is you’ll run into Syntax errors as all beginner who uses CMD do for the first time.
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I tried it. It's "less dark" but it's still hard to distinguish object in dark part. It's nowhere near as clear as the original sadly. Thx anyway
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The ffmpeg converter can make adjustments to just about any problem video. It’s trial and error. The program has so many commands. I was even getting frustrated, so I wrote a windows 10 friendly program for the program. Those developers over there are always tinkering around with sources code with very little insight to there changes
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@Thierry Michaux  The FFMPEG command from Serena above makes no change to the video quality at all.  It is a straight frame-by-frame copy and only modifies a flag in video.  I tried it and got the exact same video except that it look normal on YouTube.  If you think you got a different video, you must have made a mistake somewhere in your operation.
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Im not understand where download this ffmpeg  ? 
There no link to download. Which version i should download? Can give direct link?
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Use ffmpeg for Audacity a complied package ready to go. Comes in a zip file.
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The ffmpeg refers you to a developer who compiled the package for you. He made some changes I didn’t care for. Found some security issues and some url calls. I prefer to use the Audacity version. Not only that they have some useful dll libraries
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Please give me direct link to download.
Im downloading wrong files i think
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Can anyone give precise instructions on how to solve this problem? 
ffmpeg-this program is very difficult, it is not clear what and where to download, after downloading it does not open and is not located via the command line. Is there an alternative or more affordable guide?
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I don’t know how to do anything
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This link should work. I can’t test it right now because I’m on mobile.

ffmpeg-win-2.2.2.exe
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For those who are unfamiliar with ffmpeg, I found a Youtube video that demonstrates how to use ffmpeg: https://www.youtube.com/watch?v=MPV7JXTWPWI
Please note this video is not made by me and may not even be the best match. It only turned out to me in a quick search. There are numerous tutorials on YouTube about ffmpeg if you search for "ffmpeg" as the keyword.
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Советую заливать видео на Ютуб в формате .mp4, походу это помогает
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