Strange Artifacts/Pixelation

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mbc0
Posts: 5
Joined: Thu Sep 27, 2018 10:12 pm

Strange Artifacts/Pixelation

Post by mbc0 »

Description of problem or question:
Artifacts/Pixelation

I am encoding 10bit 1080P HEVC to 720P HEV, it does not matter if I use 2-pass, Constant Quality on Max setting, I have tried every option/filter with no change. The original file plays perfectly in every player, the encoded file always artifacts in the same place in every player. I endode these files quite often with no errors but I seem to only get these artifacts when encoding movies prior to the year 2000(ish) as I have approx a dozen movies that have these artifacts and they are all 1980's / 1990's. The artifacts can appear up to 30 times throughout a movie but never seen them on new movies.

I cannot seem to upload images so a link to 4 images is here, it is the original frame and the encoded frame to compare

https://1drv.ms/f/s!AjnJhtmhYMJlhu0ATlUtddwocFis9g


Steps to reproduce the problem (If Applicable):
Everytime, in the same points of the encode



HandBrake version (e.g., 1.0.0):
1.1.2 (And Previous)



Operating system and version (e.g., Ubuntu 16.04 LTS, macOS 10.13 High Sierra, Windows 10 Creators Update):
Windows 10 (Latest As Of 27/09/18) And Precious



HandBrake Activity Log ***required*** (see How-to get an activity log)

Code: Select all

HandBrake 1.1.0 (2018040700) - 64bit
OS: Microsoft Windows NT 10.0.17134.0 - 64bit
CPU: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
Ram: 16247 MB, 
GPU Information:
  NVIDIA GeForce GTX 1060 6GB - 23.21.13.8813
  Intel(R) UHD Graphics 630 - 23.20.16.4944
Screen: 1920x1080
Temp Dir: C:\Users\mbc0\AppData\Local\Temp\
Install Dir: C:\Program Files\HandBrake
Data Dir: C:\Users\mbc0\AppData\Roaming\HandBrake Team\HandBrake\1.1.0.0

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


# Starting Encode ...

[08:29:50] hb_init: starting libhb thread
[08:29:50] 1 job(s) to process
[08:29:50] json job:
{
  "Audio": {
    "AudioList": [
      {
        "DRC": 0.0,
        "Encoder": 1125984256,
        "Gain": 0.0,
        "Mixdown": -1,
        "NormalizeMixLevel": false,
        "Samplerate": 48000,
        "Track": 0,
        "DitherMethod": 0
      }
    ],
    "CopyMask": [
      1073807360,
      1073743872,
      1074003968,
      1073750016,
      1090519040,
      1074790400,
      1074266112,
      1107296256
    ],
    "FallbackEncoder": 2048
  },
  "Destination": {
    "ChapterList": [
      {
        "Name": "(01)00:00:00:000"
      },
      {
        "Name": "(02)00:03:51:981"
      },
      {
        "Name": "(03)00:07:57:477"
      },
      {
        "Name": "(04)00:11:59:093"
      },
      {
        "Name": "(05)00:15:47:613"
      },
      {
        "Name": "(06)00:20:51:792"
      },
      {
        "Name": "(07)00:24:02:732"
      },
      {
        "Name": "(08)00:26:50:900"
      },
      {
        "Name": "(09)00:31:42:025"
      },
      {
        "Name": "(10)00:37:58:609"
      },
      {
        "Name": "(11)00:39:36:207"
      },
      {
        "Name": "(12)00:43:45:456"
      },
      {
        "Name": "(13)00:47:26:927"
      },
      {
        "Name": "(14)00:50:03:750"
      },
      {
        "Name": "(15)00:55:01:047"
      },
      {
        "Name": "(16)01:00:34:881"
      },
      {
        "Name": "(17)01:03:10:703"
      },
      {
        "Name": "(18)01:07:32:048"
      },
      {
        "Name": "(19)01:11:23:362"
      },
      {
        "Name": "(20)01:15:33:070"
      },
      {
        "Name": "(21)01:20:46:758"
      },
      {
        "Name": "(22)01:23:49:899"
      },
      {
        "Name": "(23)01:27:22:403"
      },
      {
        "Name": "(24)01:30:50:570"
      }
    ],
    "ChapterMarkers": true,
    "AlignAVStart": false,
    "File": "F:\\Handbrake Completed\\Rapid Fire 1992 Bluray 10Bit 1080P Dd2.0 H265-D3g-1.mkv",
    "Mp4Options": {
      "IpodAtom": false,
      "Mp4Optimize": false
    },
    "Mux": 2097152
  },
  "Filters": {
    "FilterList": [
      {
        "ID": 11,
        "Settings": {
          "crop-bottom": "0",
          "crop-left": "0",
          "crop-right": "0",
          "crop-top": "0",
          "height": "694",
          "width": "1280"
        }
      },
      {
        "ID": 6,
        "Settings": {
          "mode": "1"
        }
      }
    ]
  },
  "PAR": {
    "Num": 1,
    "Den": 1
  },
  "Metadata": {},
  "SequenceID": 0,
  "Source": {
    "Angle": 1,
    "Range": {
      "Type": "chapter",
      "Start": 1,
      "End": 24
    },
    "Title": 1,
    "Path": "W:\\Syncthing\\x265\\Rapid Fire 1992 10bit hevc-d3g\\Rapid Fire 1992 BluRay 10Bit 1080p DD2.0 H265-d3g.mkv"
  },
  "Subtitle": {
    "Search": {
      "Burn": true,
      "Default": false,
      "Enable": true,
      "Forced": true
    },
    "SubtitleList": []
  },
  "Video": {
    "Encoder": 8192,
    "Level": "auto",
    "TwoPass": false,
    "Turbo": false,
    "ColorMatrixCode": 0,
    "Options": "",
    "Preset": "fast",
    "Profile": "auto",
    "Quality": 21.0,
    "HWDecode": false,
    "QSV": {
      "Decode": false,
      "AsyncDepth": 0
    }
  }
}
[08:29:50] CPU: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
[08:29:50]  - Intel microarchitecture Kaby Lake
[08:29:50]  - logical processor count: 12
[08:29:50] Intel Quick Sync Video support: yes
[08:29:50]  - Intel Media SDK hardware: API 1.25 (minimum: 1.3)
[08:29:50]  - H.264 encoder: yes
[08:29:50]     - preferred implementation: hardware (any) via D3D11
[08:29:50]     - capabilities (hardware):  breftype icq+la+i+downs vsinfo opt1 opt2+mbbrc+extbrc+trellis+ib_adapt+nmpslice
[08:29:50]  - H.265 encoder: yes (8bit: yes, 10bit: yes)
[08:29:50]     - preferred implementation: hardware (any) via D3D11
[08:29:50]     - capabilities (hardware):  bpyramid icq vsinfo opt1
[08:29:50] hb_scan: path=W:\Syncthing\x265\Rapid Fire 1992 10bit hevc-d3g\Rapid Fire 1992 BluRay 10Bit 1080p DD2.0 H265-d3g.mkv, title_index=1
udfread ERROR: ECMA 167 Volume Recognition failed
src/libbluray/disc/disc.c:323: failed opening UDF image W:\Syncthing\x265\Rapid Fire 1992 10bit hevc-d3g\Rapid Fire 1992 BluRay 10Bit 1080p DD2.0 H265-d3g.mkv
src/libbluray/disc/disc.c:424: error opening file BDMV\index.bdmv
src/libbluray/disc/disc.c:424: error opening file BDMV\BACKUP\index.bdmv
[08:29:50] bd: not a bd - trying as a stream/file instead
libdvdnav: Using dvdnav version 5.0.3
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
[08:29:50] dvd: not a dvd - trying as a stream/file instead
Input #0, matroska,webm, from 'W:\Syncthing\x265\Rapid Fire 1992 10bit hevc-d3g\Rapid Fire 1992 BluRay 10Bit 1080p DD2.0 H265-d3g.mkv':
  Metadata:
    title           : Rapid Fire 1992 BluRay 10Bit 1080p DD2.0 H265-d3g
  Duration: 01:35:12.73, start: 0.000000, bitrate: N/A
    Chapter #0:0: start 0.000000, end 231.981000
    Metadata:
      title           : (01)00:00:00:000
    Chapter #0:1: start 231.981000, end 477.477000
    Metadata:
      title           : (02)00:03:51:981
    Chapter #0:2: start 477.477000, end 719.093000
    Metadata:
      title           : (03)00:07:57:477
    Chapter #0:3: start 719.093000, end 947.613000
    Metadata:
      title           : (04)00:11:59:093
    Chapter #0:4: start 947.613000, end 1251.792000
    Metadata:
      title           : (05)00:15:47:613
    Chapter #0:5: start 1251.792000, end 1442.732000
    Metadata:
      title           : (06)00:20:51:792
    Chapter #0:6: start 1442.732000, end 1610.900000
    Metadata:
      title           : (07)00:24:02:732
    Chapter #0:7: start 1610.900000, end 1902.025000
    Metadata:
      title           : (08)00:26:50:900
    Chapter #0:8: start 1902.025000, end 2278.609000
    Metadata:
      title           : (09)00:31:42:025
    Chapter #0:9: start 2278.609000, end 2376.207000
    Metadata:
      title           : (10)00:37:58:609
    Chapter #0:10: start 2376.207000, end 2625.456000
    Metadata:
      title           : (11)00:39:36:207
    Chapter #0:11: start 2625.456000, end 2846.927000
    Metadata:
      title           : (12)00:43:45:456
    Chapter #0:12: start 2846.927000, end 3003.750000
    Metadata:
      title           : (13)00:47:26:927
    Chapter #0:13: start 3003.750000, end 3301.047000
    Metadata:
      title           : (14)00:50:03:750
    Chapter #0:14: start 3301.047000, end 3634.881000
    Metadata:
      title           : (15)00:55:01:047
    Chapter #0:15: start 3634.881000, end 3790.703000
    Metadata:
      title           : (16)01:00:34:881
    Chapter #0:16: start 3790.703000, end 4052.048000
    Metadata:
      title           : (17)01:03:10:703
    Chapter #0:17: start 4052.048000, end 4283.362000
    Metadata:
      title           : (18)01:07:32:048
    Chapter #0:18: start 4283.362000, end 4533.070000
    Metadata:
      title           : (19)01:11:23:362
    Chapter #0:19: start 4533.070000, end 4846.758000
    Metadata:
      title           : (20)01:15:33:070
    Chapter #0:20: start 4846.758000, end 5029.899000
    Metadata:
      title           : (21)01:20:46:758
    Chapter #0:21: start 5029.899000, end 5242.403000
    Metadata:
      title           : (22)01:23:49:899
    Chapter #0:22: start 5242.403000, end 5450.570000
    Metadata:
      title           : (23)01:27:22:403
    Chapter #0:23: start 5450.570000, end 5712.736000
    Metadata:
      title           : (24)01:30:50:570
    Stream #0:0: Video: hevc (Main 10)
      yuv420p10le, tv, bt709/bt709/bt709
      1920x1040 [PAR 1:1 DAR 24:13], PAR 1:1 DAR 24:13
      23.98 fps, 1k tbn (default)
    Metadata:
      BPS             : 3697809
      BPS-eng         : 3697809
      DURATION        : 01:35:11.706000000
      DURATION-eng    : 01:35:11.706000000
      NUMBER_OF_FRAMES: 136944
      NUMBER_OF_FRAMES-eng: 136944
      NUMBER_OF_BYTES : 2640100391
      NUMBER_OF_BYTES-eng: 2640100391
      _STATISTICS_WRITING_APP: DVDFab 10.0.9.2
      _STATISTICS_WRITING_APP-eng: DVDFab 10.0.9.2
      _STATISTICS_WRITING_DATE_UTC: 2018-09-21 20:51:46
      _STATISTICS_WRITING_DATE_UTC-eng: 2018-09-21 20:51:46
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:1(eng): Audio: ac3
      48000 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      BPS             : 128000
      BPS-eng         : 128000
      DURATION        : 01:35:12.736000000
      DURATION-eng    : 01:35:12.736000000
      NUMBER_OF_FRAMES: 178523
      NUMBER_OF_FRAMES-eng: 178523
      NUMBER_OF_BYTES : 91403776
      NUMBER_OF_BYTES-eng: 91403776
      _STATISTICS_WRITING_APP: DVDFab 10.0.9.2
      _STATISTICS_WRITING_APP-eng: DVDFab 10.0.9.2
      _STATISTICS_WRITING_DATE_UTC: 2018-09-21 20:51:46
      _STATISTICS_WRITING_DATE_UTC-eng: 2018-09-21 20:51:46
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:2(eng): Subtitle: dvd_subtitle
    Metadata:
      BPS             : 10205
      BPS-eng         : 10205
      DURATION        : 01:32:55.278000000
      DURATION-eng    : 01:32:55.278000000
      NUMBER_OF_FRAMES: 1100
      NUMBER_OF_FRAMES-eng: 1100
      NUMBER_OF_BYTES : 7112133
      NUMBER_OF_BYTES-eng: 7112133
      _STATISTICS_WRITING_APP: DVDFab 10.0.9.2
      _STATISTICS_WRITING_APP-eng: DVDFab 10.0.9.2
      _STATISTICS_WRITING_DATE_UTC: 2018-09-21 20:51:46
      _STATISTICS_WRITING_DATE_UTC-eng: 2018-09-21 20:51:46
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
[08:29:50] scan: decoding previews for title 1
[08:29:50] scan: audio 0x1: ac3, rate=48000Hz, bitrate=128000 English (AC3) (2.0 ch)
[08:29:50] scan: 10 previews, 1920x1040, 23.976 fps, autocrop = 0/0/0/0, aspect 16:9, PAR 1:1
[08:29:50] scan: supported video decoders: avcodec qsv
[08:29:50] libhb: scan thread found 1 valid title(s)
[08:29:50] starting job
[08:29:50] job configuration:
[08:29:50]  * source
[08:29:50]    + W:\Syncthing\x265\Rapid Fire 1992 10bit hevc-d3g\Rapid Fire 1992 BluRay 10Bit 1080p DD2.0 H265-d3g.mkv
[08:29:50]    + title 1, chapter(s) 1 to 24
[08:29:50]    + container: matroska,webm
[08:29:50]  * destination
[08:29:50]    + F:\Handbrake Completed\Rapid Fire 1992 Bluray 10Bit 1080P Dd2.0 H265-D3g-1.mkv
[08:29:50]    + container: Matroska (libavformat)
[08:29:50]      + chapter markers
[08:29:50]  * video track
[08:29:50]    + decoder: hevc
[08:29:50]    + filters
[08:29:50]      + Framerate Shaper (mode=1)
[08:29:50]        + frame rate: 23.976 fps -> constant 23.976 fps
[08:29:50]      + Crop and Scale (width=1280:height=694:crop-top=0:crop-bottom=0:crop-left=0:crop-right=0)
[08:29:50]        + source: 1920 * 1040, crop (0/0/0/0): 1920 * 1040, scale: 1280 * 694
[08:29:50]    + Output geometry
[08:29:50]      + storage dimensions: 1280 x 694
[08:29:50]      + pixel aspect ratio: 1 : 1
[08:29:50]      + display dimensions: 1280 x 694
[08:29:50]  * Foreign Audio Search: Render/Burn-in, Forced Only
[08:29:50]    + subtitle, English [VOBSUB] (track 0, id 0x2, Picture)
[08:29:50] sync: expecting 136968 video frames
[08:30:16] reader: done. 1 scr changes
[08:30:16] work: average encoding speed for job is 0.000000 fps
[08:30:16] vfr: 0 frames output, 0 dropped and 0 duped for CFR/PFR
[08:30:16] vfr: lost time: 0 (0 frames)
[08:30:16] vfr: gained time: 0 (0 frames) (0 not accounted for)
[08:30:16] hevc-decoder done: 0 frames, 0 decoder errors
[08:30:16] sync: got 0 frames, 136968 expected
[08:30:16] Subtitle track 0 (id 0x2) 'English [VOBSUB]': 1100 hits (0 forced)
[08:30:16] No candidate detected during subtitle scan
[08:30:16] starting job
[08:30:16] Auto Passthru: allowed codecs are AAC, AC3, E-AC3, TrueHD, DTS, DTS-HD, MP3, FLAC
[08:30:16] Auto Passthru: fallback is AC3
[08:30:16] Auto Passthru: using AC3 Passthru for track 1
[08:30:16] job configuration:
[08:30:16]  * source
[08:30:16]    + W:\Syncthing\x265\Rapid Fire 1992 10bit hevc-d3g\Rapid Fire 1992 BluRay 10Bit 1080p DD2.0 H265-d3g.mkv
[08:30:16]    + title 1, chapter(s) 1 to 24
[08:30:16]    + container: matroska,webm
[08:30:16]  * destination
[08:30:16]    + F:\Handbrake Completed\Rapid Fire 1992 Bluray 10Bit 1080P Dd2.0 H265-D3g-1.mkv
[08:30:16]    + container: Matroska (libavformat)
[08:30:16]      + chapter markers
[08:30:16]  * video track
[08:30:16]    + decoder: hevc
[08:30:16]    + filters
[08:30:16]      + Framerate Shaper (mode=1)
[08:30:16]        + frame rate: 23.976 fps -> constant 23.976 fps
[08:30:16]      + Crop and Scale (width=1280:height=694:crop-top=0:crop-bottom=0:crop-left=0:crop-right=0)
[08:30:16]        + source: 1920 * 1040, crop (0/0/0/0): 1920 * 1040, scale: 1280 * 694
[08:30:16]    + Output geometry
[08:30:16]      + storage dimensions: 1280 x 694
[08:30:16]      + pixel aspect ratio: 1 : 1
[08:30:16]      + display dimensions: 1280 x 694
[08:30:16]    + encoder: H.265 10-bit (libx265)
[08:30:16]      + preset:  fast
[08:30:16]      + profile: auto
[08:30:16]      + quality: 21.00 (RF)
[08:30:16]  * audio track 1
[08:30:16]    + decoder: English (AC3) (2.0 ch) (track 1, id 0x1)
[08:30:16]      + bitrate: 128 kbps, samplerate: 48000 Hz
[08:30:16]    + AC3 Passthru
[08:30:16] sync: expecting 136968 video frames
x265 [info]: HEVC encoder version 2.6
x265 [info]: build info [Windows][GCC 7.2.0][64 bit] 10bit
x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
x265 [info]: Main 10 profile, Level-3.1 (Main tier)
x265 [info]: Thread pool created using 12 threads
x265 [info]: Slices                              : 1
x265 [info]: frame threads / pool features       : 3 / wpp(11 rows)
x265 [warning]: Source height < 720p; disabling lookahead-slices
x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
x265 [info]: Residual QT: max TU size, max depth : 32 / 1 inter / 1 intra
x265 [info]: ME / range / subpel / merge         : hex / 57 / 2 / 2
x265 [info]: Keyframe min / max / scenecut / bias: 24 / 240 / 40 / 5.00
x265 [info]: Lookahead / bframes / badapt        : 15 / 4 / 0
x265 [info]: b-pyramid / weightp / weightb       : 1 / 1 / 0
x265 [info]: References / ref-limit  cu / depth  : 3 / on / on
x265 [info]: AQ: mode / str / qg-size / cu-tree  : 1 / 1.0 / 32 / 1
x265 [info]: Rate Control / qCompress            : CRF-21.0 / 0.60
x265 [info]: tools: rd=2 psy-rd=2.00 rskip signhide tmvp fast-intra
x265 [info]: tools: strong-intra-smoothing deblock sao
[08:30:16] sync: first pts video is 0
[08:30:16] sync: "(01)00:00:00:000" (1) at frame 1 time 0
[08:30:16] sync: first pts audio 0x1 is 0
[08:32:07] sync: "(02)00:03:51:981" (2) at frame 5563 time 20878357
[08:34:23] sync: "(03)00:07:57:477" (3) at frame 11449 time 42972930
[08:36:51] sync: "(04)00:11:59:093" (4) at frame 17242 time 64718403
[08:38:52] sync: "(05)00:15:47:613" (5) at frame 22721 time 85285200
[08:41:46] sync: "(06)00:20:51:792" (6) at frame 30014 time 112661298
[08:43:28] sync: "(07)00:24:02:732" (7) at frame 34592 time 129845966
[08:44:56] sync: "(08)00:26:50:900" (8) at frame 38624 time 144981086
[08:47:49] sync: "(09)00:31:42:025" (9) at frame 45604 time 171182261
[08:51:06] sync: "(10)00:37:58:609" (10) at frame 54633 time 205074870
[08:51:55] sync: "(11)00:39:36:207" (11) at frame 56973 time 213858645
[08:54:02] sync: "(12)00:43:45:456" (12) at frame 62949 time 236291055
[08:55:47] sync: "(13)00:47:26:927" (13) at frame 68259 time 256223467
[08:57:06] sync: "(14)00:50:03:750" (14) at frame 72019 time 270337567
[08:59:53] sync: "(15)00:55:01:047" (15) at frame 79147 time 297094297
[09:03:07] sync: "(16)01:00:34:881" (16) at frame 87151 time 327139312
[09:04:35] sync: "(17)01:03:10:703" (17) at frame 90887 time 341163322
[09:06:47] sync: "(18)01:07:32:048" (18) at frame 97153 time 364684320
[09:08:48] sync: "(19)01:11:23:362" (19) at frame 102699 time 385502617
[09:11:08] sync: "(20)01:15:33:070" (20) at frame 108686 time 407976318
[09:14:34] sync: "(21)01:20:46:758" (21) at frame 116207 time 436208272
[09:16:57] sync: "(22)01:23:49:899" (22) at frame 120598 time 452690988
[09:19:05] sync: "(23)01:27:22:403" (23) at frame 125693 time 471816345
[09:21:31] sync: "(24)01:30:50:570" (24) at frame 130684 time 490551311
[09:23:03] reader: done. 1 scr changes
[09:23:03] work: average encoding speed for job is 43.218472 fps
[09:23:04] vfr: 136944 frames output, 0 dropped and 0 duped for CFR/PFR
[09:23:04] vfr: lost time: 0 (0 frames)
[09:23:04] vfr: gained time: 0 (0 frames) (0 not accounted for)
[09:23:04] ac3-decoder done: 178523 frames, 0 decoder errors
[09:23:04] hevc-decoder done: 136944 frames, 0 decoder errors
[09:23:04] sync: got 136944 frames, 136968 expected
[09:23:04] sync: framerate min 23.981 fps, max 23.981 fps, avg 23.976 fps
x265 [info]: frame I:   1737, Avg QP:19.39  kb/s: 6330.57
x265 [info]: frame P:  27618, Avg QP:20.68  kb/s: 3558.71
x265 [info]: frame B: 107589, Avg QP:24.51  kb/s: 889.92
x265 [info]: Weighted P-Frames: Y:6.2% UV:4.5%
x265 [info]: consecutive B-frames: 6.6% 1.2% 1.1% 1.1% 89.9%
encoded 136944 frames in 3167.40s (43.24 fps), 1497.15 kb/s, Avg QP:23.68
[09:23:04] mux: track 0, 136944 frames, 1069459690 bytes, 1497.65 kbps, fifo 4096
[09:23:04] mux: track 1, 178523 frames, 91403776 bytes, 128.00 kbps, fifo 4096
[09:23:04] libhb: work result = 0

# Encode Completed ...


mbc0
Posts: 5
Joined: Thu Sep 27, 2018 10:12 pm

Re: Strange Artifacts/Pixelation

Post by mbc0 »

Just to add, I have tried Staxrip using the same settings CC21 and resize to 1280 X * and there are no artifacts, not sure what Handbrake is doing here?
Woodstock
Veteran User
Posts: 4619
Joined: Tue Aug 27, 2013 6:39 am

Re: Strange Artifacts/Pixelation

Post by Woodstock »

It is likely that whoever did the original encode used settings that are confusing the handbrake h265 decoder.

Have you tried encoding from an original rip (which would probably be in h264 or VC1), rather one someone else has encoded previously?
mbc0
Posts: 5
Joined: Thu Sep 27, 2018 10:12 pm

Re: Strange Artifacts/Pixelation

Post by mbc0 »

Hi, thanks for your reply,

no I have not tried that, it is something I have done for about a year as the file sizes and quality are spot on it is just with the older movies it appears to happen, as I said Staxrip is able to convert the same source without issue so I would have been sure that handbrake would handle it?
Deleted User 11865

Re: Strange Artifacts/Pixelation

Post by Deleted User 11865 »

Assuming it is indeed a decoder bug, maybe the nightlies already have a fix for it: https://handbrake.fr/nightly.php
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