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Subtitle Mutilated During Re-encode (Coversion to ASS)

Problem Description

When doing a re-encode with de-telecine, I include the subtitles (as passthru), so they'll be re-sync'd with the video.

Today I wanted to modify something in a post-sync subtitle and found a line missing... comparing it with the original I discovered it was literally butchered: most timecodes had their text truncated to two lines only, some were just deleted entirely (e.g. line 5 in the original).

Included are the original subtitle and the post-encode version (I'm also including a SRT version, for easy comparison to the original).
subtitles.zip

Activity Log, Crash Log or any other details

HandBrake 1.7.3 (2024021000)
OS: Microsoft Windows NT 10.0.19045.0
CPU: Intel(R) Pentium(R) CPU G4560 @ 3.50GHz
Ram: 8064 MB, 
GPU Information:
  Intel(R) HD Graphics 610 - 31.0.101.2128
Screen: 1920x1080
Temp Dir: C:\Users\Rosemary\AppData\Local\Temp\
Install Dir: C:\Program Files\HandBrake\
Data Dir: C:\Users\Rosemary\AppData\Roaming\HandBrake

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

 # Starting Encode ...

[13:59:14] base preset: HDTV 2 (Modified)
[13:59:15] Remote Process started with Process ID: 6364 using port: 8037. Max Allowed Instances: 1
[13:59:16] Worker: Starting HandBrake Engine ...
[13:59:16] Worker: Parent Process Id 3976
[13:59:16] Worker: Starting Web Server on port 8037 ...
[13:59:16] Worker: Starting Listener: 1
[13:59:16] Worker: Server Started
[13:59:16] Worker: Disconnected worker monitoring enabled!
[13:59:17] Compile-time hardening features are enabled
Cannot load nvEncodeAPI64.dll
[13:59:17] vcn: not available on this system
[13:59:18] qsv: is available on this system
[13:59:19] hb_init: starting libhb thread
[13:59:19] Starting work at: Wed Jun 26 13:59:19 2024
[13:59:19] 1 job(s) to process
[13:59:19] json job:
{
  "Audio": {
    "AudioList": [
      {
        "DRC": 0,
        "Encoder": "copy:aac",
        "Gain": 0,
        "Mixdown": -1,
        "NormalizeMixLevel": false,
        "Samplerate": 0,
        "Track": 0,
        "DitherMethod": 0
      }
    ],
    "CopyMask": [
      "copy:aac",
      "copy:ac3"
    ],
    "FallbackEncoder": "av_aac"
  },
  "Destination": {
    "ChapterList": [],
    "ChapterMarkers": false,
    "AlignAVStart": false,
    "File": "C:\\Users\\Rosemary\\Downloads\\A Spectacular Showdown 1959 1080i HDTV AAC2.0 MPEG2-JPTVclub_QSV-icq21.mkv",
    "Options": {
      "IpodAtom": false,
      "Optimize": false
    },
    "Mux": "av_mkv"
  },
  "Filters": {
    "FilterList": [
      {
        "ID": 3,
        "Settings": {}
      },
      {
        "ID": 19,
        "Settings": {
          "crop-bottom": "134",
          "crop-left": "4",
          "crop-right": "2",
          "crop-top": "132",
          "height": "814",
          "width": "1912"
        }
      },
      {
        "ID": 10,
        "Settings": {
          "mode": "1",
          "rate": "27000000/1126125"
        }
      }
    ]
  },
  "PAR": {
    "Num": 1,
    "Den": 1
  },
  "Metadata": {},
  "SequenceID": 0,
  "Source": {
    "Angle": 1,
    "Range": {
      "Type": "chapter",
      "Start": 1,
      "End": 1
    },
    "Title": 1,
    "Path": "I:\\0_ACM\\A Spectacular Showdown 1959 1080i HDTV AAC2.0 MPEG2-JPTVclub.mkv",
    "HWDecode": 6
  },
  "Subtitle": {
    "Search": {
      "Burn": false,
      "Default": false,
      "Enable": false,
      "Forced": false
    },
    "SubtitleList": [
      {
        "Burn": false,
        "Default": false,
        "Forced": false,
        "ID": 1,
        "Offset": 0,
        "Track": 0,
        "Name": "OCR from DVD vobsub"
      },
      {
        "Burn": false,
        "Default": false,
        "Forced": false,
        "ID": 2,
        "Offset": 0,
        "Track": 1
      }
    ]
  },
  "Video": {
    "Encoder": "qsv_h265_10bit",
    "Level": "auto",
    "MultiPass": false,
    "Turbo": false,
    "ColorMatrixCode": 0,
    "Options": "",
    "Preset": "quality",
    "Profile": "auto",
    "Quality": 21,
    "QSV": {
      "Decode": true
    },
    "HardwareDecode": 0
  }
}
[13:59:19] CPU: Intel(R) Pentium(R) CPU G4560 @ 3.50GHz
[13:59:19]  - Intel microarchitecture Kaby Lake
[13:59:19]  - logical processor count: 4
[13:59:19] Intel Quick Sync Video support: yes, gpu list: 0
[13:59:19] Intel Quick Sync Video integrated adapter with index 0
[13:59:19] Impl mfxhw64 library path: C:\WINDOWS\System32\DriverStore\FileRepository\iigd_dch.inf_amd64_58ee72dee7989949\libmfxhw64.dll
[13:59:19]  - Intel Media SDK hardware: API 1.35 (minimum: 1.3)
[13:59:19]  - Decode support:  h264 hevc (8bit: yes, 10bit: yes)
[13:59:19]  - H.264 encoder: yes
[13:59:19]     - preferred implementation: hardware (1) via D3D11
[13:59:19]     - capabilities (hardware):  breftype icq+la+i+downs vsinfo chromalocinfo opt1 opt2+mbbrc+extbrc+trellis+repeatpps+ib_adapt+nmpslice
[13:59:19]  - H.265 encoder: yes (8bit: yes, 10bit: yes)
[13:59:19]     - preferred implementation: hardware (1) via D3D11
[13:59:19]     - capabilities (hardware):  bpyramid icq vsinfo masteringinfo cllinfo opt1
[13:59:19]  - AV1 encoder: no
[13:59:19] hb_scan: path=I:\0_ACM\A Spectacular Showdown 1959 1080i HDTV AAC2.0 MPEG2-JPTVclub.mkv, title_index=1
Input #0, matroska,webm, from 'I:\0_ACM\A Spectacular Showdown 1959 1080i HDTV AAC2.0 MPEG2-JPTVclub.mkv':
  Metadata:
    encoder         : libebml v1.4.5 + libmatroska v1.7.1
    creation_time   : 2024-06-26T04:09:30.000000Z
  Duration: 01:54:24.67, start: 0.034000, bitrate: 7448 kb/s
  Stream #0:0(jpn): Video: mpeg2video (Main), yuv420p(tv, bt709, top first), 1440x1080 [SAR 4:3 DAR 16:9], 29.97 fps, 29.97 tbr, 1k tbn (default)
    Metadata:
      BPS             : 7304547
      DURATION        : 01:54:24.574000000
      NUMBER_OF_FRAMES: 164594
      NUMBER_OF_BYTES : 6267825493
      _STATISTICS_WRITING_APP: mkvmerge v82.0 ('I'm The President') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2024-06-26 04:09:30
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Side data:
      cpb: bitrate max/min/avg: 8324800/0/0 buffer size: 7995392 vbv_delay: N/A
  Stream #0:1(jpn): Audio: aac (LC), 48000 Hz, stereo, fltp (default)
    Metadata:
      BPS             : 140625
      DURATION        : 01:54:24.640000000
      NUMBER_OF_FRAMES: 321780
      NUMBER_OF_BYTES : 120667500
      _STATISTICS_WRITING_APP: mkvmerge v82.0 ('I'm The President') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2024-06-26 04:09:30
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:2(eng): Subtitle: subrip (default)
    Metadata:
      title           : OCR from DVD vobsub
      BPS             : 44
      DURATION        : 01:54:18.779000000
      NUMBER_OF_FRAMES: 1159
      NUMBER_OF_BYTES : 38468
      _STATISTICS_WRITING_APP: mkvmerge v82.0 ('I'm The President') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2024-06-26 04:09:30
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:3(jpn): Subtitle: subrip
    Metadata:
      BPS             : 64
      DURATION        : 01:52:02.480000000
      NUMBER_OF_FRAMES: 1325
      NUMBER_OF_BYTES : 54419
      _STATISTICS_WRITING_APP: mkvmerge v82.0 ('I'm The President') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2024-06-26 04:09:30
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
[13:59:19] scan: decoding previews for title 1
[13:59:19] scan: audio 0x1: aac, rate=48000Hz, bitrate=1 ??? (AAC LC, 2.0 ch)
[13:59:20] using bitstream PAR 4:3
[13:59:20] scan: 10 previews, 1440x1080, 23.976 fps, autocrop = 132/56/4/0, aspect 16:9, PAR 4:3, color profile: 1-1-1, chroma location: left
[13:59:20] libhb: scan thread found 1 valid title(s)
[13:59:20] Starting Task: Encoding Pass
[13:59:20] job configuration:
[13:59:20]  * source
[13:59:20]    + I:\0_ACM\A Spectacular Showdown 1959 1080i HDTV AAC2.0 MPEG2-JPTVclub.mkv
[13:59:20]    + title 1, chapter(s) 1 to 1
[13:59:20]    + container: matroska,webm
[13:59:20]    + data rate: 7448 kbps
[13:59:20]  * destination
[13:59:20]    + C:\Users\Rosemary\Downloads\A Spectacular Showdown 1959 1080i HDTV AAC2.0 MPEG2-JPTVclub_QSV-icq21.mkv
[13:59:20]    + container: Matroska (libavformat)
[13:59:20]  * video track
[13:59:20]    + decoder: mpeg2video 8-bit (yuv420p)
[13:59:20]    + filters
[13:59:20]      + Detelecine (pullup) ()
[13:59:20]      + Framerate Shaper (mode=1:rate=27000000/1126125)
[13:59:20]        + frame rate: 23.976 fps -> constant 23.976 fps
[13:59:20]      + Crop and Scale (width=1912:height=814:crop-top=132:crop-bottom=134:crop-left=4:crop-right=2)
[13:59:20]        + source: 1440 * 1080, crop (132/134/4/2): 1434 * 814, scale: 1912 * 814
[13:59:20]      + Format (format=p010le)
[13:59:20]    + Output geometry
[13:59:20]      + storage dimensions: 1912 x 814
[13:59:20]      + pixel aspect ratio: 1 : 1
[13:59:20]      + display dimensions: 1912 x 814
[13:59:20]    + encoder: H.265 10-bit (Intel Media SDK)
[13:59:20]      + preset:  quality
[13:59:20]      + profile: auto
[13:59:20]      + level:   auto
[13:59:20]      + quality: 21.00 (ICQ)
[13:59:20]      + color profile: 1-1-1
[13:59:20]      + chroma location: left
[13:59:20]  * subtitle track 1, English (UTF-8) (track 0, id 0x2, Text) -> Passthrough
[13:59:20]    + name: OCR from DVD vobsub
[13:59:20]  * subtitle track 2, ??? (UTF-8) (track 1, id 0x3, Text) -> Passthrough
[13:59:20]  * audio track 1
[13:59:20]    + decoder: ??? (AAC LC, 2.0 ch) (track 1, id 0x1)
[13:59:20]      + samplerate: 48000 Hz
[13:59:20]    + AAC Passthru
[13:59:20] sync: expecting 164587 video frames
[13:59:21] encqsvInit: using encode-only via system memory path
[13:59:21] encqsvInit: H.265/HEVC Main 10 profile @ level (null)
[13:59:21] encqsvInit: TargetUsage 4 AsyncDepth 4
[13:59:21] encqsvInit: GopRefDist 4 GopPicSize 48 NumRefFrame 3 IdrInterval 0
[13:59:21] encqsvInit: BFramesMax 3 BRefType pyramid
[13:59:21] encqsvInit: RateControlMethod ICQ ICQQuality 21
[13:59:21] sync: first pts video is 0
[13:59:21] sync: Chapter 1 at frame 1 time 0
[13:59:21] sync: first pts audio 0x1 is 0
[13:59:21] 1.168000s: Video -> Film
[13:59:21] qsv_enc_init: using 'hardware (1) via D3D11' implementation, API: 1.35
[13:59:22] sync: first pts subtitle 0x2 is 366930
[13:59:32] sync: subtitle 0x2 time went backwards 0 ms, PTS 2496600
[13:59:33] sync: subtitle 0x2 time went backwards 0 ms, PTS 2845080
[13:59:35] sync: subtitle 0x2 time went backwards 0 ms, PTS 3193380
[13:59:39] sync: subtitle 0x2 time went backwards 0 ms, PTS 4205700
[13:59:40] sync: subtitle 0x2 time went backwards 0 ms, PTS 4695300
[13:59:43] sync: subtitle 0x2 time went backwards 0 ms, PTS 5169870
[13:59:45] sync: subtitle 0x2 time went backwards 0 ms, PTS 5659470
[13:59:47] sync: subtitle 0x2 time went backwards 0 ms, PTS 6140070
[13:59:49] sync: subtitle 0x2 time went backwards 0 ms, PTS 6671700
[13:59:51] sync: subtitle 0x2 time went backwards 0 ms, PTS 7221330
[13:59:53] sync: subtitle 0x2 time went backwards 0 ms, PTS 7762050
[13:59:55] sync: subtitle 0x2 time went backwards 0 ms, PTS 8302680
[13:59:58] sync: subtitle 0x2 time went backwards 0 ms, PTS 8777250
[14:00:00] sync: subtitle 0x2 time went backwards 0 ms, PTS 9275940
[14:00:08] sync: first pts subtitle 0x3 is 11049660
[14:00:16] sync: subtitle 0x2 time went backwards 0 ms, PTS 12781170
[14:00:35] 185.051331s: Film -> Video
[14:00:35] 185.184998s: Video -> Film
[14:18:52] sync: subtitle 0x2 time went backwards 0 ms, PTS 246616920
[14:19:22] sync: subtitle 0x2 time went backwards 0 ms, PTS 253128870
[14:48:27] reader: done. 1 scr changes
[14:48:29] work: average encoding speed for job is 55.830929 fps
[14:48:29] vfr: 164585 frames output, 2 dropped and 2 duped for CFR/PFR
[14:48:29] vfr: lost time: 30060 (0 frames)
[14:48:29] vfr: gained time: 30060 (32 frames) (0 not accounted for)
[14:48:29] aac-decoder done: 321780 frames, 0 decoder errors
[14:48:29] mpeg2video-decoder done: 164593 frames, 0 decoder errors
[14:48:29] sync: got 164593 frames, 164587 expected
[14:48:29] sync: framerate min 23.976 fps, max 30.303 fps, avg 23.977 fps
[14:48:29] mux: track 0, 164585 frames, 2986424178 bytes, 3480.33 kbps, fifo 4096
[14:48:29] mux: track 1, 321780 frames, 120667500 bytes, 140.62 kbps, fifo 8192
[14:48:29] mux: track 2, 1142 frames, 62045 bytes, 0.07 kbps, fifo 32
[14:48:29] mux: track 3, 1325 frames, 85109 bytes, 0.10 kbps, fifo 32
[14:48:30] Finished work at: Wed Jun 26 14:48:30 2024
[14:48:30] libhb: work result = 0

 # Job Completed!

What Operating System are you running?

Windows 10

What version of HandBrake are you running?

1.7.3 (2024021000)

Where did you download HandBrake from?

handbrake.fr