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Questions tagged [hdr]

High Dynamic Range (HDR) is a term used for image and video, referring to an extended range than normal 8-bit-per-color channel precision, enabling representation of a wider range of luminance and complete color gamut.

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FFmpeg Impossible to convert between the formats supported by the filter

I'm trying to do GPU accelerated HDR tonemapping (HDR->SDR) with ffmpeg and opencl, but I keep running into this error: Impossible to convert between the formats supported by the filter 'Parsed_hwupload_1' and the filter 'auto_scaler_1'. I've tried…
Changer098
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What is the difference between Display.HdrCapabilities and configuration.isScreenHdr

I want to know the HDR capabilities on Android, so I write the following code to check this. Display display = getWindowManager().getDefaultDisplay(); Display.HdrCapabilities hdrCapabilities = display.getHdrCapabilities(); …
wchen61
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Aframe gltf-model demo with envmap

It's very convenient to load GLTF- model in aframe, but no case is found that contains envmap texture. I'd like to see that the official can provide the same case as three official. pmremGenerator.fromEquirectangular(texture) function is used to…
kjkj
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How to capture HDR framebuffer in Windows?

I use the following code to read the standard 8-bit framebuffer, however I need to read the 10-bit HDR framebuffer that's used for HDR content on my HDR monitor. As far as I can tell, BI_RGB is the only relevant enum option. Here's what I have so…
Richard Robinson
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ffmpeg - HDR to SDR - Unable to find a suitable output format for 'format=gbrpf32le'

I'm on windows 10 using ffmpeg 4.0.2. I found the script for HDR to SDR [here][1], but when I run the script from the bottom of the page: ffmpeg.exe -i input.mkv -vf…
Saxon Rix
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Does Video HDR affect only the preview or also the captured image?

AVCaptureDevice has a property called isVideoHDREnabled. Does it affect only the preview, or also the captured image? The documentation doesn't say. I would like my app to automatically take HDR images if iOS determines that it's warranted for the…
Kartick Vaddadi
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High dynamic range imaging using openCV on iOS produces garbled output

I'm trying to use openCV 3 on iOS to produce an HDR image from multiple exposures that will eventually be output as an EXR file. I noticed I was getting garbled output when I tried to create an HDR image. Thinking it was a mistake in trying to…
Artandmath
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How to use the API to get the HDR capability of the monitor in Windows?

I want to use API to get HDR capabilities of monitors like shown in windows settings like "Play streaming HDR Video" and "Use HDR", please give me a C# example. It would be even better if you could additionally tell me how to toggle the HDR state of…
Hill-98
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Extreme High Quality HDR livestreaming using FFMPEG/SRT with hevc_nvenc

So I am working out and just testing different encoder settings and I wonder if someone has some insights , it works OK now but maybe I can improve stuff. first lets start with my whole command, lets ignore the audio part for now: The final input…
finnjaeger
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AMD OpenGL and HDR display problem on Windows

I have been using OpenGL to display HDR content following explanation from nvidia: https://on-demand.gputechconf.com/gtc/2017/presentation/s7394-tom-true-programming-for-high-dynamic-range.pdf And it works great, but only on nVidia GPUs. Using the…
Milika
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How to hide a section on a HDR capable display

Really not a coder but I am trying to make a website switch between HDR and SDR videos. I am aware the "dynamic-range:" is pretty new but what is happening here is that: for a SDR display it returns true for standard and false for high For a HDR…
user3427317
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How can I export .hdr or .exr image from iPhone HDRI photo (.HEIC format)?

I want to take HDR photos with my iPhone and get images as .hdr or .exr image formats, in order to use them for my cinema rendering purpose. I took some HDR photos with my iPhone X and sent them to my iMac, and then I tried converting them from…
benjaminatmac
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Lossless compression of 10bit images (stored as 16bit pngs) with ffmpeg - HEVC preferably

I am trying to encode 10 bit images losslessly in a video format, preferably using HEVC encoding. The images are stored as 16 bit png files (but only use 10 bit) and I have been working with ffmpeg to create and read back the video files. My best…
Tom
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FFMPEG - Extract color-accurate image sequence from UHD MOV in bt.2020

Im trying to use FFMPEG to extract an image sequence from an MOV that comes from an iphone 13 with bt2020 Metadata: major_brand : qt minor_version : 0 compatible_brands: qt creation_time : 2021-10-11T16:12:07.000000Z …
aescript
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Enable "Match dynamic range" in AVPlayer on tvOS

I'm trying to make a simple streaming app in tvOS using Swift. I've basically just followed the example from Apple to get started, so the AVPlayer part of the code pretty much looks like…
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