3 ms·

Hm, I've had (significant) issues with color representation playing back "HDR" media in mpv.

by loeg 2y ago

jwells89 2y ago
Not something I have experience with so can’t speak to that.
SSLy 2y ago
was the material purple-green by chance?
- loeg 2y ago
  Yeah. I did try playing around with some of the colorspace options you can find googling, but nothing seemed to work.
  - SSLy 2y ago
    That's a Dolby Vision Profile 5 file. A format that's very very proprietary. The only PC apps that can play them at all are https://apps.microsoft.com/detail/9p9zh5fl1bfk?hl=en-ms&gl=MS https://apps.microsoft.com/detail/9p9zh5fl1bfk?hl=en-ms&gl=M... and https://firecore.com/infuse https://firecore.com/infuse
    - talliedthoughts 2y ago
      Is there a way to use Infuse on PC? The only links I see are to the App Store
      - SSLy 2y ago
        Macs are PC's, you can also make a hackintosh. EDIT2: if you consider an ARM board that you can install custom OS on as a PC – admittedly, bit of a stretch – then you can grab UGOOS AM6B plus / AM6 plus / Minix u22x-j max install CoreELEC on it and enjoy DV. https://github.com/CoreELEC/CoreELEC/releases https://github.com/CoreELEC/CoreELEC/releases https://discourse.coreelec.org/t/dolby-vision-for-minix-u22x-j-max-and-ugoos-am6/24273 https://discourse.coreelec.org/t/dolby-vision-for-minix-u22x... Recommended settings: https://justpaste.it/divn9 https://justpaste.it/divn9 Installation instructions 1: https://discourse.coreelec.org/t/guide-s922x-j-ugoos-am6b-coreelec-installation-and-faqs/51231 https://discourse.coreelec.org/t/guide-s922x-j-ugoos-am6b-co... Installation instructions 2: https://www.reddit.com/r/PleX/comments/1ajszn9/remux_lovers_rejoice_the_coreelec_team_has/ https://www.reddit.com/r/PleX/comments/1ajszn9/remux_lovers_... EDIT: I forgot that for Windows playback, you also need the HEVC and DoVi codec packages. https://apps.microsoft.com/detail/9P9ZH5FL1BFK https://apps.microsoft.com/detail/9P9ZH5FL1BFK https://apps.microsoft.com/detail/9PLTG1LWPHLF https://apps.microsoft.com/detail/9PLTG1LWPHLF https://apps.microsoft.com/detail/9nmzlz57r3t7 https://apps.microsoft.com/detail/9nmzlz57r3t7
    - literallycancer 2y ago
      You can play it with mpv, it depends on the hardware/drivers. It worked fine on a random Ryzen Lenovo laptop with Linux even though MacOS version of mpv couldn't play it correctly on M2 (even though Apple claims that M2 is compatible with the format).
      - SSLy 2y ago
        And you're sure it was a Profile 5, not 7/8 file?
      - daneel_w 2y ago
        It depends on what format/decoder support went into your particular build of mpv. It offloads almost all of its capabilities onto ffmpeg and its supporting libraries, which in turn won't necessarily be built with exactly everything enabled.
    - FabHK 2y ago
      Infuse is great. I use it to play stuff (in basically any format) from the NAS through the Apple TV on a dumb TV.
    - adrian_b 2y ago
      Nowadays mpv is able to decode it correctly, but it usually requires for that the command-line option "--vo=gpu-next". A couple of years ago, mpv was unable to handle it.
  - emestifs 2y ago
    Try this in your mpv.conf file no-config target-trc=pq target-prim=bt.2020 vo=gpu-next Wont be 100% accurate, but hopefully somewhat watchable See also https://github.com/mpv-player/mpv/issues/10122 https://github.com/mpv-player/mpv/issues/10122
    - loeg 2y ago
      Still very green/purple. It's fine, I was able to find a non-HDR version.
      - adrian_b 2y ago
        Then you probably have either a very old mpv or one that was compiled without including the "gpu-next" video output driver. Or else the GPU drivers for your GPU card have not been updated for a very long time. A recent mpv and recent GPU drivers should solve this problem, because it was frequently encountered only up to a couple of years ago.
        loeg 2y ago
        mpv 0.36.0 from July 2023, nvidia 555.58.02 drivers from August 2024 (Fedora 39).
        Narushia 2y ago
        I would try updating to 0.37.0 or 0.38.0, IIRC it only started to work for me after I updated to one of those (I always build mpv from the latest commit myself, so I'm not sure which release version exactly has the crucial fixes).
        adrian_b 2y ago
        My output of "mpv --version": mpv 0.38.0 Copyright © 2000-2024 mpv/MPlayer/mplayer2 projects libplacebo version: v6.338.2 FFmpeg version: 6.1.1 I do not remember which was the first version that worked fine. For some time, "gpu-next" was not included by default in the releases, but you had to compile a custom variant to include it. Pay attention that "libplacebo" is required. If libplacebo is absent, then the Dolby Vision conversion will not work. This could be the reason of your problem, if your Linux distribution does not have libplacebo as an automatic dependence of mpv, or if mpv has been compiled without support for libplacebo.
  - deleted 2y ago
    [deleted]
adrian_b 2y ago
Then you must have not used "mpv --vo=gpu-next". Playing HDR and Dolby Vision encoded movies has been solved a long time ago in mpv, but they usually need the option shown above, which may not be the default on your system. There are plenty of additional options in mpv that provide a finer control of how HDR colors are handled. While playing a movie with mpv, press "I", so that mpv will display the information it has about the color space supported by your display and the color space used in the movie, which will allow you to verify if they are correct.
- loeg 2y ago
  I have used vo=gpu-next, actually. Still green/purple. "I" shows: Primaries: bt.2020. Colormatrix: bt.2020-ncl. Levels: full. If that means anything.
  - adrian_b 2y ago
    "I" must show two sets of "Format: Levels: Colormatrix: Primaries: Transfer:", one set for "Display:" and one set for "Video:". "mpv" or any other player must make a conversion from the color space used for encoding the video file to the color space supported by the monitor. A monitor that has not been reconfigured after the initial installation is likely to use the sRGB color space. Any good monitor should have a configuration menu that allows the selection of a better color space, but mpv can convert BT.2020 to sRGB, if necessary (which will reduce the saturation of many colors). Did mpv print after being launched a line starting with "VO: [gpu-next]"? Where "gpu-next" is not available, mpv will start anyway, but it will use one of the other video drivers, none of which convert correctly Dolby-encoded video. On the computer where I normally play HDR/Dolby Vision movies, I use an NVIDIA GPU, so I know for sure that gpu-next works fine with it. I do not remember whether I have played any HDR/Dolby Vision movie with an AMD or Intel GPU, but I doubt that any of those is incompatible with gpu-next. In any case, if mpv prints "VO: [gpu-next]" without any error message and if "I" shows for "Display:" the correct color space supported by your monitor, e.g. sRGB or DCI-P3, then you should try to upgrade the GPU driver, which could be too old. Like I have said, IIRC this problem has been solved in 2022 and since then I have never encountered again color conversion errors, so you must have some software component that is older than 2022. Because my monitor is configured to use the color space DCI-P3 (with 10-bit colors), I alias "mpv" to "mpv='mpv --vo=gpu-next --target-prim=dci-p3'", and it has been working fine for the last two years, including with any HDR and/or Dolby Vision movie.

Hm, I've had (significant) issues with color representation playing back "HDR" media in mpv.

by loeg 2y ago

Hm, I've had (significant) issues with color representation playing back "HDR" media in mpv.

jwells89 2y ago

Not something I have experience with so can’t speak to that.

SSLy 2y ago

was the material purple-green by chance?

loeg 2y ago
Yeah. I did try playing around with some of the colorspace options you can find googling, but nothing seemed to work.
- SSLy 2y ago
  That's a Dolby Vision Profile 5 file. A format that's very very proprietary. The only PC apps that can play them at all are https://apps.microsoft.com/detail/9p9zh5fl1bfk?hl=en-ms&gl=MS https://apps.microsoft.com/detail/9p9zh5fl1bfk?hl=en-ms&gl=M... and https://firecore.com/infuse https://firecore.com/infuse
  - talliedthoughts 2y ago
    Is there a way to use Infuse on PC? The only links I see are to the App Store
    - SSLy 2y ago
      Macs are PC's, you can also make a hackintosh. EDIT2: if you consider an ARM board that you can install custom OS on as a PC – admittedly, bit of a stretch – then you can grab UGOOS AM6B plus / AM6 plus / Minix u22x-j max install CoreELEC on it and enjoy DV. https://github.com/CoreELEC/CoreELEC/releases https://github.com/CoreELEC/CoreELEC/releases https://discourse.coreelec.org/t/dolby-vision-for-minix-u22x-j-max-and-ugoos-am6/24273 https://discourse.coreelec.org/t/dolby-vision-for-minix-u22x... Recommended settings: https://justpaste.it/divn9 https://justpaste.it/divn9 Installation instructions 1: https://discourse.coreelec.org/t/guide-s922x-j-ugoos-am6b-coreelec-installation-and-faqs/51231 https://discourse.coreelec.org/t/guide-s922x-j-ugoos-am6b-co... Installation instructions 2: https://www.reddit.com/r/PleX/comments/1ajszn9/remux_lovers_rejoice_the_coreelec_team_has/ https://www.reddit.com/r/PleX/comments/1ajszn9/remux_lovers_... EDIT: I forgot that for Windows playback, you also need the HEVC and DoVi codec packages. https://apps.microsoft.com/detail/9P9ZH5FL1BFK https://apps.microsoft.com/detail/9P9ZH5FL1BFK https://apps.microsoft.com/detail/9PLTG1LWPHLF https://apps.microsoft.com/detail/9PLTG1LWPHLF https://apps.microsoft.com/detail/9nmzlz57r3t7 https://apps.microsoft.com/detail/9nmzlz57r3t7
  - literallycancer 2y ago
    You can play it with mpv, it depends on the hardware/drivers. It worked fine on a random Ryzen Lenovo laptop with Linux even though MacOS version of mpv couldn't play it correctly on M2 (even though Apple claims that M2 is compatible with the format).
    - SSLy 2y ago
      And you're sure it was a Profile 5, not 7/8 file?
    - daneel_w 2y ago
      It depends on what format/decoder support went into your particular build of mpv. It offloads almost all of its capabilities onto ffmpeg and its supporting libraries, which in turn won't necessarily be built with exactly everything enabled.
  - FabHK 2y ago
    Infuse is great. I use it to play stuff (in basically any format) from the NAS through the Apple TV on a dumb TV.
  - adrian_b 2y ago
    Nowadays mpv is able to decode it correctly, but it usually requires for that the command-line option "--vo=gpu-next". A couple of years ago, mpv was unable to handle it.
- emestifs 2y ago
  Try this in your mpv.conf file no-config target-trc=pq target-prim=bt.2020 vo=gpu-next Wont be 100% accurate, but hopefully somewhat watchable See also https://github.com/mpv-player/mpv/issues/10122 https://github.com/mpv-player/mpv/issues/10122
  - loeg 2y ago
    Still very green/purple. It's fine, I was able to find a non-HDR version.
    - adrian_b 2y ago
      Then you probably have either a very old mpv or one that was compiled without including the "gpu-next" video output driver. Or else the GPU drivers for your GPU card have not been updated for a very long time. A recent mpv and recent GPU drivers should solve this problem, because it was frequently encountered only up to a couple of years ago.
      - loeg 2y ago
        mpv 0.36.0 from July 2023, nvidia 555.58.02 drivers from August 2024 (Fedora 39).
        Narushia 2y ago
        I would try updating to 0.37.0 or 0.38.0, IIRC it only started to work for me after I updated to one of those (I always build mpv from the latest commit myself, so I'm not sure which release version exactly has the crucial fixes).
        adrian_b 2y ago
        My output of "mpv --version": mpv 0.38.0 Copyright © 2000-2024 mpv/MPlayer/mplayer2 projects libplacebo version: v6.338.2 FFmpeg version: 6.1.1 I do not remember which was the first version that worked fine. For some time, "gpu-next" was not included by default in the releases, but you had to compile a custom variant to include it. Pay attention that "libplacebo" is required. If libplacebo is absent, then the Dolby Vision conversion will not work. This could be the reason of your problem, if your Linux distribution does not have libplacebo as an automatic dependence of mpv, or if mpv has been compiled without support for libplacebo.
- deleted 2y ago
  [deleted]

adrian_b 2y ago

Then you must have not used "mpv --vo=gpu-next". Playing HDR and Dolby Vision encoded movies has been solved a long time ago in mpv, but they usually need the option shown above, which may not be the default on your system. There are plenty of additional options in mpv that provide a finer control of how HDR colors are handled. While playing a movie with mpv, press "I", so that mpv will display the information it has about the color space supported by your display and the color space used in the movie, which will allow you to verify if they are correct.

loeg 2y ago
I have used vo=gpu-next, actually. Still green/purple. "I" shows: Primaries: bt.2020. Colormatrix: bt.2020-ncl. Levels: full. If that means anything.
- adrian_b 2y ago
  "I" must show two sets of "Format: Levels: Colormatrix: Primaries: Transfer:", one set for "Display:" and one set for "Video:". "mpv" or any other player must make a conversion from the color space used for encoding the video file to the color space supported by the monitor. A monitor that has not been reconfigured after the initial installation is likely to use the sRGB color space. Any good monitor should have a configuration menu that allows the selection of a better color space, but mpv can convert BT.2020 to sRGB, if necessary (which will reduce the saturation of many colors). Did mpv print after being launched a line starting with "VO: [gpu-next]"? Where "gpu-next" is not available, mpv will start anyway, but it will use one of the other video drivers, none of which convert correctly Dolby-encoded video. On the computer where I normally play HDR/Dolby Vision movies, I use an NVIDIA GPU, so I know for sure that gpu-next works fine with it. I do not remember whether I have played any HDR/Dolby Vision movie with an AMD or Intel GPU, but I doubt that any of those is incompatible with gpu-next. In any case, if mpv prints "VO: [gpu-next]" without any error message and if "I" shows for "Display:" the correct color space supported by your monitor, e.g. sRGB or DCI-P3, then you should try to upgrade the GPU driver, which could be too old. Like I have said, IIRC this problem has been solved in 2022 and since then I have never encountered again color conversion errors, so you must have some software component that is older than 2022. Because my monitor is configured to use the color space DCI-P3 (with 10-bit colors), I alias "mpv" to "mpv='mpv --vo=gpu-next --target-prim=dci-p3'", and it has been working fine for the last two years, including with any HDR and/or Dolby Vision movie.