HEVC HDR to x264 non-hdr

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mmace
Posts: 1
Joined: Mon Nov 20, 2017 2:20 pm

HEVC HDR to x264 non-hdr

Post by mmace »

Please detail your question or problem in as much detail as possible:
Hi guys, apologies if this is the wrong sub-forum but I'm hoping for some help...
I have UHD HDR videos that are in x265/HEVC. I need to transcode to x264 (current hardware not fast enough for HEVC) and I also need to make them non-HDR as my UHD TV isn't HDR and my players (PC, Android and the TV itself) show the videos as very washed out with barely any colour.

I've been using handbrake to transcode HEVC to x264 but I'm not sure of the best way to do this, can anyone advise?

Tell us about your environment. What version of HandBrake? What version of Windows are you running. etc.
Windows 10 Pro, 64bit
Please include the scan or encode log:

Code: Select all

HandBrake 1.0.7 (2017040900) - 64bit
OS: Microsoft Windows NT 10.0.14393.0 - 64bit
CPU: Intel(R) Core(TM) i7-4510U CPU @ 2.00GHz
Ram: 8090 MB, 
GPU Information:
  Intel(R) HD Graphics Family - 20.19.15.4531
  NVIDIA GeForce GT 750M - 21.21.13.6909
Screen: 1920x1080
Temp Dir: C:\Users\Maff\AppData\Local\Temp\
Install Dir: C:\Program Files\HandBrake
Data Dir: C:\Users\Maff\AppData\Roaming\HandBrake Team\HandBrake\1.0.7.0

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


# Starting Encode ...

[15:43:08] hb_init: starting libhb thread
[15:43:09] 1 job(s) to process
[15:43:09] json job:
{
  "Audio": {
    "AudioList": [],
    "CopyMask": [
      1073807360,
      1073743872,
      1074003968,
      1073750016,
      1090519040,
      1074790400,
      1074266112,
      1107296256
    ],
    "FallbackEncoder": 2048
  },
    "ChapterMarkers": true,
    "File": "C:\\Users\\Maff\\Desktop\\output.mkv",
    "Mp4Options": {
      "IpodAtom": false,
      "Mp4Optimize": false
    },
    "Mux": 2097152
  },
  "Filters": {
    "FilterList": [
      {
        "ID": 4,
        "Settings": {
          "mode": "7"
        }
      },
      {
        "ID": 3,
        "Settings": {
          "block-height": "16",
          "block-thresh": "40",
          "block-width": "16",
          "filter-mode": "2",
          "mode": "3",
          "motion-thresh": "1",
          "spatial-metric": "2",
          "spatial-thresh": "1"
        }
      },
      {
        "ID": 11,
        "Settings": {
          "crop-bottom": "278",
          "crop-left": "0",
          "crop-right": "0",
          "crop-top": "278",
          "height": "1604",
          "width": "3840"
        }
      },
      {
        "ID": 6,
        "Settings": {
          "mode": "0"
        }
      }
    ]
  },
  "PAR": {
    "Num": 1,
    "Den": 1
  },
  "Metadata": {},
  "SequenceID": 0,
  "Source": {
    "Angle": 1,
    "Range": {
      "Type": "time",
      "Start": 118800000,
      "End": 119250000
    },
    "Title": 1,
    "Path": "C:\\input.mkv"
  },
  "Subtitle": {
    "Search": {
      "Burn": false,
      "Default": false,
      "Enable": false,
      "Forced": false
    },
    "SubtitleList": []
  },
  "Video": {
    "Encoder": 65536,
    "Level": "auto",
    "TwoPass": false,
    "Turbo": false,
    "ColorMatrixCode": 0,
    "Options": "",
    "Preset": "fast",
    "Profile": "auto",
    "Quality": 24.0,
    "OpenCL": false,
    "HWDecode": false,
    "QSV": {
      "Decode": false,
      "AsyncDepth": 0
    }
  }
}
[15:43:09] CPU: Intel(R) Core(TM) i7-4510U CPU @ 2.00GHz
[15:43:09]  - Intel microarchitecture Haswell
[15:43:09]  - logical processor count: 4
[15:43:09] Intel Quick Sync Video support: yes
[15:43:09]  - Intel Media SDK hardware: API 1.19 (minimum: 1.3)
[15:43:09]  - H.264 encoder: yes
[15:43:09]     - preferred implementation: hardware (any)
[15:43:09]     - capabilities (hardware):  breftype icq+la+i+downs vsinfo opt1 opt2+mbbrc+extbrc+trellis+ib_adapt+nmpslice
[15:43:09]  - H.265 encoder: no
[15:43:09] hb_scan: path=C:\input.mkv, title_index=1
udfread ERROR: ECMA 167 Volume Recognition failed
src/libbluray/disc/disc.c:274: failed opening UDF image C:\input.mkv
src/libbluray/disc/disc.c:352: error opening file BDMV\index.bdmv
src/libbluray/disc/disc.c:352: error opening file BDMV\BACKUP\index.bdmv
[15:43:09] bd: not a bd - trying as a stream/file instead
libdvdnav: Using dvdnav version 5.0.1
libdvdread: Encrypted DVD support unavailable.
libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
libdvdnav: vm: failed to read VIDEO_TS.IFO
[15:43:09] dvd: not a dvd - trying as a stream/file instead
Input #0, matroska,webm, from 'C:\input.mkv':
  Duration: 02:06:00.76, start: 0.000000, bitrate: 47173 kb/s
    Chapter #0:0: start 0.000000, end 48.757042
    Metadata:
      title           : Chapter 01
    Chapter #0:1: start 48.757042, end 87.712625
    Metadata:
      title           : Chapter 02
    Chapter #0:2: start 87.712625, end 122.956167
    Metadata:
      title           : Chapter 03
    Chapter #0:3: start 122.956167, end 146.479667
    Metadata:
      title           : Chapter 04
    Chapter #0:4: start 146.479667, end 334.625958
    Metadata:
      title           : Chapter 05
    Chapter #0:5: start 334.625958, end 363.112750
    Metadata:
      title           : Chapter 06
    Chapter #0:6: start 363.112750, end 389.305583
    Metadata:
      title           : Chapter 07
    Chapter #0:7: start 389.305583, end 537.745542
    Metadata:
      title           : Chapter 08
    Chapter #0:8: start 537.745542, end 657.823833
    Metadata:
      title           : Chapter 09
    Chapter #0:9: start 657.823833, end 746.245500
    Metadata:
      title           : Chapter 10
    Chapter #0:10: start 746.245500, end 829.495333
    Metadata:
      title           : Chapter 11
    Chapter #0:11: start 829.495333, end 1068.400667
    Metadata:
      title           : Chapter 12
    Chapter #0:12: start 1068.400667, end 1250.707792
    Metadata:
      title           : Chapter 13
    Chapter #0:13: start 1250.707792, end 1281.738792
    Metadata:
      title           : Chapter 14
    Chapter #0:14: start 1281.738792, end 1320.610958
    Metadata:
      title           : Chapter 15
    Chapter #0:15: start 1320.610958, end 1464.004208
    Metadata:
      title           : Chapter 16
    Chapter #0:16: start 1464.004208, end 1552.425875
    Metadata:
      title           : Chapter 17
    Chapter #0:17: start 1552.425875, end 1604.144208
    Metadata:
      title           : Chapter 18
    Chapter #0:18: start 1604.144208, end 1693.108083
    Metadata:
      title           : Chapter 19
    Chapter #0:19: start 1693.108083, end 1751.374625
    Metadata:
      title           : Chapter 20
    Chapter #0:20: start 1751.374625, end 1945.443500
    Metadata:
      title           : Chapter 21
    Chapter #0:21: start 1945.443500, end 1983.314667
    Metadata:
      title           : Chapter 22
    Chapter #0:22: start 1983.314667, end 2053.968583
    Metadata:
      title           : Chapter 23
    Chapter #0:23: start 2053.968583, end 2075.114708
    Metadata:
      title           : Chapter 24
    Chapter #0:24: start 2075.114708, end 2231.270708
    Metadata:
      title           : Chapter 25
    Chapter #0:25: start 2231.270708, end 2294.250292
    Metadata:
      title           : Chapter 26
    Chapter #0:26: start 2294.250292, end 2453.617833
    Metadata:
      title           : Chapter 27
    Chapter #0:27: start 2453.617833, end 2511.967792
    Metadata:
      title           : Chapter 28
    Chapter #0:28: start 2511.967792, end 2703.117083
    Metadata:
      title           : Chapter 29
    Chapter #0:29: start 2703.117083, end 2785.240792
    Metadata:
      title           : Chapter 30
    Chapter #0:30: start 2785.240792, end 2904.484917
    Metadata:
      title           : Chapter 31
    Chapter #0:31: start 2904.484917, end 3066.313250
    Metadata:
      title           : Chapter 32
    Chapter #0:32: start 3066.313250, end 3161.116292
    Metadata:
      title           : Chapter 33
    Chapter #0:33: start 3161.116292, end 3330.327000
    Metadata:
      title           : Chapter 34
    Chapter #0:34: start 3330.327000, end 3521.976792
    Metadata:
      title           : Chapter 35
    Chapter #0:35: start 3521.976792, end 3573.236333
    Metadata:
      title           : Chapter 36
    Chapter #0:36: start 3573.236333, end 3602.682417
    Metadata:
      title           : Chapter 37
    Chapter #0:37: start 3602.682417, end 3615.653708
    Metadata:
      title           : Chapter 38
    Chapter #0:38: start 3615.653708, end 3629.459167
    Metadata:
      title           : Chapter 39
    Chapter #0:39: start 3629.459167, end 3655.860542
    Metadata:
      title           : Chapter 40
    Chapter #0:40: start 3655.860542, end 3679.217208
    Metadata:
      title           : Chapter 41
    Chapter #0:41: start 3679.217208, end 3805.635167
    Metadata:
      title           : Chapter 42
    Chapter #0:42: start 3805.635167, end 3908.487917
    Metadata:
      title           : Chapter 43
    Chapter #0:43: start 3908.487917, end 3981.727750
    Metadata:
      title           : Chapter 44
    Chapter #0:44: start 3981.727750, end 4007.336667
    Metadata:
      title           : Chapter 45
    Chapter #0:45: start 4007.336667, end 4043.497792
    Metadata:
      title           : Chapter 46
    Chapter #0:46: start 4043.497792, end 4210.789917
    Metadata:
      title           : Chapter 47
    Chapter #0:47: start 4210.789917, end 4280.776500
    Metadata:
      title           : Chapter 48
    Chapter #0:48: start 4280.776500, end 4373.202167
    Metadata:
      title           : Chapter 49
    Chapter #0:49: start 4373.202167, end 4491.945792
    Metadata:
      title           : Chapter 50
    Chapter #0:50: start 4491.945792, end 4545.666125
    Metadata:
      title           : Chapter 51
    Chapter #0:51: start 4545.666125, end 4616.069792
    Metadata:
      title           : Chapter 52
    Chapter #0:52: start 4616.069792, end 4722.384333
    Metadata:
      title           : Chapter 53
    Chapter #0:53: start 4722.384333, end 4752.080667
    Metadata:
      title           : Chapter 54
    Chapter #0:54: start 4752.080667, end 4822.317500
    Metadata:
      title           : Chapter 55
    Chapter #0:55: start 4822.317500, end 4860.856000
    Metadata:
      title           : Chapter 56
    Chapter #0:56: start 4860.856000, end 5013.967292
    Metadata:
      title           : Chapter 57
    Chapter #0:57: start 5013.967292, end 5241.653083
    Metadata:
      title           : Chapter 58
    Chapter #0:58: start 5241.653083, end 5330.366708
    Metadata:
      title           : Chapter 59
    Chapter #0:59: start 5330.366708, end 5558.553000
    Metadata:
      title           : Chapter 60
    Chapter #0:60: start 5558.553000, end 5603.848250
    Metadata:
      title           : Chapter 61
    Chapter #0:61: start 5603.848250, end 5640.134500
    Metadata:
      title           : Chapter 62
    Chapter #0:62: start 5640.134500, end 5721.048667
    Metadata:
      title           : Chapter 63
    Chapter #0:63: start 5721.048667, end 5808.636167
    Metadata:
      title           : Chapter 64
    Chapter #0:64: start 5808.636167, end 5926.378792
    Metadata:
      title           : Chapter 65
    Chapter #0:65: start 5926.378792, end 6047.958583
    Metadata:
      title           : Chapter 66
    Chapter #0:66: start 6047.958583, end 6128.372250
    Metadata:
      title           : Chapter 67
    Chapter #0:67: start 6128.372250, end 6219.963750
    Metadata:
      title           : Chapter 68
    Chapter #0:68: start 6219.963750, end 6306.967333
    Metadata:
      title           : Chapter 69
    Chapter #0:69: start 6306.967333, end 6384.211167
    Metadata:
      title           : Chapter 70
    Chapter #0:70: start 6384.211167, end 6439.307875
    Metadata:
      title           : Chapter 71
    Chapter #0:71: start 6439.307875, end 6487.772958
    Metadata:
      title           : Chapter 72
    Chapter #0:72: start 6487.772958, end 6547.582708
    Metadata:
      title           : Chapter 73
    Chapter #0:73: start 6547.582708, end 6614.441167
    Metadata:
      title           : Chapter 74
    Chapter #0:74: start 6614.441167, end 6744.863125
    Metadata:
      title           : Chapter 75
    Chapter #0:75: start 6744.863125, end 6840.875708
    Metadata:
      title           : Chapter 76
    Chapter #0:76: start 6840.875708, end 6961.704750
    Metadata:
      title           : Chapter 77
    Chapter #0:77: start 6961.704750, end 7083.785042
    Metadata:
      title           : Chapter 78
    Chapter #0:78: start 7083.785042, end 7168.661500
    Metadata:
      title           : Chapter 79
    Chapter #0:79: start 7168.661500, end 7214.707500
    Metadata:
      title           : Chapter 80
    Chapter #0:80: start 7214.707500, end 7272.098167
    Metadata:
      title           : Chapter 81
    Chapter #0:81: start 7272.098167, end 7342.001333
    Metadata:
      title           : Chapter 82
    Chapter #0:82: start 7342.001333, end 8008.000000
    Metadata:
      title           : Chapter 83
    Stream #0:0(eng): Video: hevc (Main 10)
      yuv420p10le, tv, bt2020nc/bt2020/smpte2084
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      DURATION-eng    : 02:06:00.762000000
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    Stream #0:1(eng): Audio: dts (DTS-HD MA)
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[15:43:09] scan: decoding previews for title 1
[15:43:10] scan: audio 0x1: dca, rate=48000Hz, bitrate=1536000 English (DTS-HD MA) (5.1 ch)
[15:43:10] scan: audio 0x2: dca, rate=48000Hz, bitrate=1536000 English (DTS) (5.1 ch)
[15:43:10] scan: audio 0x3: ac3, rate=48000Hz, bitrate=640000 Francais (AC3) (5.1 ch)
[15:43:34] scan: 10 previews, 3840x2160, 23.976 fps, autocrop = 278/278/0/0, aspect 16:9, PAR 1:1
[15:43:34] libhb: scan thread found 1 valid title(s)
[15:43:34] starting job
[15:43:34] decomb filter thread started for segment 0
[15:43:34] decomb filter thread started for segment 1
[15:43:34] decomb filter thread started for segment 2
[15:43:34] decomb filter thread started for segment 3
[15:43:34] decomb check thread started for segment 0
[15:43:34] decomb check thread started for segment 1
[15:43:34] decomb check thread started for segment 2
[15:43:34] decomb check thread started for segment 3
[15:43:34] mask filter thread started for segment 0
[15:43:34] mask filter thread started for segment 1
[15:43:34] mask filter thread started for segment 2
[15:43:34] mask filter thread started for segment 3
[15:43:34] mask erode thread started for segment 0
[15:43:34] mask erode thread started for segment 1
[15:43:34] mask erode thread started for segment 2
[15:43:34] mask erode thread started for segment 3
[15:43:34] mask dilate thread started for segment 0
[15:43:34] mask dilate thread started for segment 1
[15:43:34] mask dilate thread started for segment 2
[15:43:34] mask dilate thread started for segment 3
[15:43:34] yadif thread started for segment 0
[15:43:34] yadif thread started for segment 1
[15:43:34] yadif thread started for segment 2
[15:43:34] yadif thread started for segment 3
[15:43:34] job configuration:
[15:43:34]  * source
[15:43:34]    + C:\input.mkv
[15:43:34]    + title 1, start 00:22:0.00 stop 00:22:5.00
[15:43:34]    + container: matroska,webm
[15:43:34]    + data rate: 47173 kbps
[15:43:34]  * destination
[15:43:34]    + C:\Users\Maff\Desktop\output.mkv
[15:43:34]    + container: Matroska (libavformat)
[15:43:34]      + chapter markers
[15:43:34]  * video track
[15:43:34]    + decoder: hevc
[15:43:34]    + filters
[15:43:34]      + Comb Detect (mode=3:spatial-metric=2:motion-thresh=1:spatial-thresh=1:filter-mode=2:block-thresh=40:block-width=16:block-height=16)
[15:43:34]      + Decomb (mode=39)
[15:43:34]      + Framerate Shaper (mode=0)
[15:43:34]        + frame rate: same as source (around 23.976 fps)
[15:43:34]      + Crop and Scale (width=3840:height=1604:crop-top=278:crop-bottom=278:crop-left=0:crop-right=0)
[15:43:34]        + source: 3840 * 2160, crop (278/278/0/0): 3840 * 1604, scale: 3840 * 1604
[15:43:34]    + Output geometry
[15:43:34]      + storage dimensions: 3840 x 1604
[15:43:34]      + pixel aspect ratio: 1 : 1
[15:43:34]      + display dimensions: 3840 x 1604
[15:43:34]    + encoder: H.264 (libx264)
[15:43:34]      + preset:  fast
[15:43:34]      + profile: auto
[15:43:34]      + level:   auto
[15:43:34]      + quality: 24.00 (RF)
[15:43:35] sync: expecting 143 video frames
[15:43:35] encx264: min-keyint: 24, keyint: 240
[15:43:35] encx264: encoding at constant RF 24.000000
[15:43:35] encx264: unparsed options: subme=6:ref=2:weightp=1:rc-lookahead=30
x264 [info]: using SAR=1/1
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
x264 [info]: profile High, level 5.1
[15:43:43] sync: first pts video is 0
[15:43:46] sync: "Chapter 16" (16) at frame 17 time 60060
[15:44:29] sync: reached video pts 450450, exiting early
[15:46:17] work: average encoding speed for job is 2.635717 fps
[15:46:17] comb detect: heavy 1 | light 0 | uncombed 119 | total 120
[15:46:17] decomb: deinterlaced 1 | blended 0 | unfiltered 119 | total 120
[15:46:17] vfr: lost time: 0 (0 frames)
[15:46:17] vfr: gained time: 0 (0 frames) (0 not accounted for)
[15:46:17] hevc-decoder done: 675 frames, 0 decoder errors
[15:46:17] sync: got 120 frames, 143 expected
[15:46:17] sync: framerate min 23.981 fps, max 23.981 fps, avg 23.976 fps
x264 [info]: frame I:2     Avg QP:20.98  size: 75571
x264 [info]: frame P:30    Avg QP:22.04  size: 15397
x264 [info]: frame B:88    Avg QP:22.85  size:  8522
x264 [info]: consecutive B-frames:  1.7%  0.0%  5.0% 93.3%
x264 [info]: mb I  I16..4: 44.3% 53.3%  2.4%
x264 [info]: mb P  I16..4:  1.4%  1.5%  0.0%  P16..4: 19.4%  1.3%  2.3%  0.0%  0.0%    skip:74.1%
x264 [info]: mb B  I16..4:  0.4%  5.1%  0.0%  B16..8:  3.8%  0.2%  0.0%  direct: 4.5%  skip:85.9%  L0:51.2% L1:47.5% BI: 1.3%
x264 [info]: 8x8 transform intra:77.9% inter:99.1%
x264 [info]: coded y,uvDC,uvAC intra: 24.1% 44.1% 5.3% inter: 2.0% 5.8% 0.0%
x264 [info]: i16 v,h,dc,p: 48% 29%  9% 13%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 19% 52%  2%  3%  2%  3%  1%  2%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 34% 11%  3%  4%  4%  5%  3%  4%
x264 [info]: i8c dc,h,v,p: 66% 17% 15%  2%
x264 [info]: Weighted P-Frames: Y:0.0% UV:0.0%
x264 [info]: ref P L0: 58.1% 41.9%
x264 [info]: ref B L0: 66.3% 33.7%
x264 [info]: ref B L1: 90.8%  9.2%
x264 [info]: kb/s:2178.62
[15:46:18] mux: track 0, 120 frames, 1362912 bytes, 2178.48 kbps, fifo 128
[15:46:18] libhb: work result = 0

# Encode Completed ...
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mduell
Veteran User
Posts: 8198
Joined: Sat Apr 21, 2007 8:54 pm

Re: HEVC HDR to x264 non-hdr

Post by mduell »

If the sources are properly flagged, HB will do the colorspace conversion. Fix the flagging and your conversion will be fine.
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User avatar
Ritsuka
HandBrake Team
Posts: 1655
Joined: Fri Jan 12, 2007 11:29 am

Re: HEVC HDR to x264 non-hdr

Post by Ritsuka »

Unfortunately HandBrake can't convert HDR to a standard color space.

You can use a player like mpv that can reproduce the file with the right colors.
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Deleted User 11865

Re: HEVC HDR to x264 non-hdr

Post by Deleted User 11865 »

mduell wrote: ↑Mon Nov 20, 2017 4:27 pm If the sources are properly flagged, HB will do the colorspace conversion. Fix the flagging and your conversion will be fine.
Nope. Colorspace conversion is only done in case of RGB -> YUV (using a Bt.601 matrix) or similarly fully-incompatible colorspaces. Otherwise we just pass the color information indexes through to the output and let the playback device or software sort it all out…
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WhatZit
Experienced
Posts: 77
Joined: Sat Feb 13, 2016 2:45 am

Re: HEVC HDR to x264 non-hdr

Post by WhatZit »

mmace wrote: ↑Mon Nov 20, 2017 4:02 pmI also need to make them non-HDR as my UHD TV isn't HDR and my players (PC, Android and the TV itself) show the videos as very washed out with barely any colour.
If you're familiar with the picture degradation that occurs when mismatching 8-bit video levels (PC 0-255 or TV 16-235), then you'll have an understanding of the HDR->SDR problem.

HDR introduces 10/12 bit video levels which cannot be accurately transferred to 8-bit quantizers using simple linear conversions, especially so when you factor in dynamic light levels.

There are some SDR software players which detect the presence of HDR metadata in a source and automatically apply a video level correction filter that simulates 10/12-bit contrast & saturation in 8-bits (with limited success). Any HDR hardware player will need SDR screen support to have any chance of doing the same. Despite sounding silly, companies like Technicolor are working on chipsets that do this, to facilitate an incremental upgrade path for consumers.

Unfortunately, for your situation, what you need to do is to bake the correction into your encodes, and this ain't gonna be easy. You will either have to:

1) Use open-source scripting to read the HDR as 10-bit, high-quality dither to 8-bits, apply whatever automatic SDR tone mapping you can get functioning, write to 8-bit x264

2) Use commercial studio software to transcode 10-bit HDR sources to 8-bit SDR intermediates, manually colour grade every scene, write to 8-bit x264

3) Wait for HB to implement a workable compromise HDR->SDR filter that you can turn on, the same sort of thing found in MadVR & mpv.

Yeah, fun fun fun.

Honestly, whilst there is terrific value in upconverting SDR to HDR, there is ZERO value in downconverting HDR to SDR. I mean that, none!

You might think that a higher quality source equals a higher quality encode, but the amount of picture information that is mutilated in the HDR->SDR downconversion process will always produce a WORSE result than transcoding from a high-quality SDR source. I know, because I've been there, done that.

Here's the simplest advice I can give to anyone regarding HDR: if you DON'T have HDR equipment, NEVER use HDR sources! Don't buy them, don't "acquire" them, completely avoid them. You'll be a lot happier.
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