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When I watch the HDR video downloaded from YouTube on my iPhone, I feel that the HDR is completely broken

by Poster May 13, 2025 7
Mobile: iPhone 16 Pro Max + iOS 18.4.1 The screen of the device supports HDR playback, so it should be possible to eliminate problems with the hardware of the playback device. Use a certain yt-dlp kernel software to download 4K HDR videos from YouTube. After downloading, the file format is webm. Use infuse to open and play, and the appearance of rotten HDR is presented, with various overexposures. Open it directly with the YouTube APP on your mobile phone. The exposure is normal, and the light and dark details are well preserved. What is the reason for this? Is it the download or the player? Have any friends researched it?

Replies

  • Anonymous12548 May 14, 2025
    Try converting webm to H.265 hevc format
  • Anonymous1668 May 14, 2025
    When downloading yt-dlp, select mp4 for the video stream, and select mp4 package for the output file and try again
  • Anonymous107 May 14, 2025
    How about changing the player
  • Anonymous2865 May 14, 2025
    I feel like there will be something wrong. I downloaded youtubehdr from downie and played it locally with iina and played it from youtube web pages. It feels obviously different
  • Anonymous486 May 14, 2025
    Is it that the player is not compatible with webm format? webm can't play with infuse or vidhub, but nplayer can; Select mkv format when downloading in the future, general players are compatible
  • Poster May 14, 2025
    @ Anonymous12548 Thanks for your reply, but I tried the conversion of ffmpeg. A 3GB video feels like it takes several hours to convert. This method may be too time-consuming. @ Anonymous1668 Thanks for the reply, yt-dlp-F looked at it, HDR is here on webm, mp4 does not have HDR. @ Anonymous107 @ Anonymous486 Thanks for your reply. I tried nplayer and it is normal. At least I can't tell the difference from the YouTube client. However, the playback is very stuck, and there is a serious out-of-sync audio and video. I tried both soft and hard solutions, but the stuck situation still exists.
  • Poster May 14, 2025
    @ Anonymous2865 My computer screen doesn't support HDR so I haven't tried IINA yet, I tried nplayer on my phone and it is normal