[FFmpeg-trac] #7885(undetermined:new): Can't copy Blu-ray subtitles from .m2ts to .m2ts

[FFmpeg]

#7885: Can't copy Blu-ray subtitles from .m2ts to .m2ts
-------------------------------------+-------------------------------------
             Reporter:  rhazor       |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug: Can't copy PGS/SUP subtitle files from Blu-ray .m2ts
 file to new .m2ts file. No encoding, just remuxing.

 How to reproduce:
 {{{
 ffmpeg -analyzeduration 200M -probesize 200M -i "test.m2ts" -map 0:v -map
 0:a -map 0:s -c copy new.m2ts
 ffmpeg version N-93774-gfec4212d8e Copyright (c) 2000-2019 the FFmpeg
 developers
   built with gcc 8.3.1 (GCC) 20190414
   configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
 fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-
 libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame
 --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr
 --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack
 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2
 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-
 libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa
 --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx
 --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-
 nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
   libavutil      56. 26.101 / 56. 26.101
   libavcodec     58. 52.101 / 58. 52.101
   libavformat    58. 27.103 / 58. 27.103
   libavdevice    58.  7.100 / 58.  7.100
   libavfilter     7. 50.100 /  7. 50.100
   libswscale      5.  4.100 /  5.  4.100
   libswresample   3.  4.100 /  3.  4.100
   libpostproc    55.  4.100 / 55.  4.100
 [mpegts @ 000001e6d4b9adc0] DTS discontinuity in stream 2: packet 4 with
 DTS 402220885, packet 5 with DTS 402403095
 [mpegts @ 000001e6d4b9adc0] DTS discontinuity in stream 2: packet 12 with
 DTS 402406850, packet 13 with DTS 402635828
 Input #0, mpegts, from 'test.m2ts':
   Duration: 00:01:00.60, start: 4441.120000, bitrate: 31343 kb/s
   Program 1
     Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448),
 yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr,
 90k tbn, 47.95 tbc
     Stream #0:1[0x1100](eng): Audio: dts (DTS-HD MA) ([134][0][0][0] /
 0x0086), 48000 Hz, 5.1(side), s32p (24 bit)
     Stream #0:2[0x1200](eng): Subtitle: hdmv_pgs_subtitle ([144][0][0][0]
 / 0x0090), 1920x1080
 File 'new.m2ts' already exists. Overwrite ? [y/N] y
 Output #0, mpegts, to 'new.m2ts':
   Metadata:
     encoder         : Lavf58.27.103
     Stream #0:0: Video: h264 (High) (HDMV / 0x564D4448),
 yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps,
 23.98 tbr, 90k tbn, 90k tbc
     Stream #0:1(eng): Audio: dts (DTS-HD MA) ([134][0][0][0] / 0x0086),
 48000 Hz, 5.1(side), s32p (24 bit)
     Stream #0:2(eng): Subtitle: hdmv_pgs_subtitle ([144][0][0][0] /
 0x0090), 1920x1080
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (copy)
   Stream #0:2 -> #0:2 (copy)
 Press [q] to stop, [?] for help
 [mpegts @ 000001e6e0cc19c0] Non-monotonous DTS in output stream 0:2;
 previous: 2520040, current: 2520038; changing to 2520041. This may result
 in incorrect timestamps in the output file.
 [mpegts @ 000001e6e0cc19c0] Non-monotonous DTS in output stream 0:2;
 previous: 2705988, current: 2705986; changing to 2705989. This may result
 in incorrect timestamps in the output file.
 frame= 1453 fps=0.0 q=-1.0 Lsize=  242946kB time=00:01:00.59
 bitrate=32843.3kbits/s speed= 112x
 video:191759kB audio:28143kB subtitle:13kB other streams:0kB global
 headers:0kB muxing overhead: 10.472713%
 }}}

 If you run MediaInfo on the new file it shows that subtitle track became a
 'menu':


 {{{
 Menu
 ID                                       : 4096 (0x1000)
 Menu ID                                  : 1 (0x1)
 Duration                                 : 59 s 601 ms
 List                                     : 256 (0x100) (AVC) / 257 (0x101)
 (DTS, English)
 Language                                 :  / English
 Service name                             : Service01
 Service provider                         : FFmpeg
 Service type                             : digital television
 }}}

 When playing new file, there is no subtitles.

 Tested on multiple different discs.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7885>
FFmpeg <https://ffmpeg.org>
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