Extract subtitles from MPEG-TS-file (DVB Subtitle & Teletext) using ffmpeg

[DeafYakuza]

I have some problems with CCExtractor because many subtitles are missed (more than 100 lines) after extracting to srt format. It works not good for movies which are recorded with black broadcast on screen especially. You will wondering why I recorded a movie with black screen because some TV broadcast have freezes, so I switched the function off and the subtitles works on screen well.
Subtitle Edit and ProjectX can't do that because after extracting it comes a message that it was not done succesfully. The file is empty (no subtitles extracted).

So I was thinking about ffmpeg, maybe it works well with black broadcast on screen with contains subtitles to extract subtitles. I tried to extract dvb subtitles or teletext subtitles from ts-file (MPEG-TS) and the ffmpeg stops instantly and the output file is empty.

Does anyone have idea which parameter would be properly?


ffmpeg:

ffmpeg -i Stephen_Kings_Bag_Of_Bones.ts -map 0:4 -scodec dvdsub Stephen_Kings_Bag_Of_Bones.ass

Media Info:

C:\Users\DeafYakuza\Desktop> ffmpeg -i Stephen_Kings_Bag_Of_Bones.ts
ffmpeg version 4.1.1 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 8.2.1 (GCC) 20190212
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --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
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
[mpegts @ 000001ea773e89c0] start time for stream 0 is not set in estimate_timings_from_pts
[mpegts @ 000001ea773e89c0] start time for stream 1 is not set in estimate_timings_from_pts
[mpegts @ 000001ea773e89c0] start time for stream 2 is not set in estimate_timings_from_pts
[mpegts @ 000001ea773e89c0] start time for stream 3 is not set in estimate_timings_from_pts
[mpegts @ 000001ea773e89c0] start time for stream 5 is not set in estimate_timings_from_pts
[mpegts @ 000001ea773e89c0] PES packet size mismatch
    Last message repeated 1 times
[mpegts @ 000001ea773e89c0] Could not find codec parameters for stream 0 (Video: mpeg2video ([2][0][0][0] / 0x0002), none(tv)): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[mpegts @ 000001ea773e89c0] Could not find codec parameters for stream 1 (Audio: mp3 (mp3float) ([3][0][0][0] / 0x0003), 0 channels, fltp): unspecified frame size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[mpegts @ 000001ea773e89c0] Could not find codec parameters for stream 2 (Audio: mp3 (mp3float) ([3][0][0][0] / 0x0003), 0 channels, fltp): unspecified frame size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[mpegts @ 000001ea773e89c0] Could not find codec parameters for stream 3 (Audio: ac3 ([6][0][0][0] / 0x0006), 0 channels, fltp): unspecified sample rate
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, mpegts, from 'Stephen_Kings_Bag_Of_Bones.ts':
  Duration: 00:53:46.60, start: 69987.891700, bitrate: 7716 kb/s
  Program 13001
  Program 13002
    Stream #0:0[0x1f4]: Video: mpeg2video ([2][0][0][0] / 0x0002), none(tv), 90k tbr, 90k tbn, 90k tbc
    Stream #0:1[0x1f5](deu): Audio: mp3 ([3][0][0][0] / 0x0003), 0 channels, fltp (clean effects)
    Stream #0:2[0x1f6](mis): Audio: mp3 ([3][0][0][0] / 0x0003), 0 channels, fltp (clean effects)
    Stream #0:3[0x1f7](deu): Audio: ac3 ([6][0][0][0] / 0x0006), 0 channels, fltp (clean effects)
    Stream #0:4[0x1f9](ger): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
    Stream #0:5[0x1fc]: Data: bin_data ([6][0][0][0] / 0x0006)
  Program 13003
  Program 13004
  Program 13005
  Program 13006
  Program 13007
  Program 13008
  Program 13009
  Program 13010
  Program 13011
  Program 13012
  Program 13013
  Program 13014
  Program 13015
  Program 13018
  Program 13019
  Program 13021
At least one output file must be specified

[netmask56]

TSDoctor, there is a fully functioning trial available might do it as it is designed for DVB subs - probably the successor to ProjectX as it handles mpeg4 as well as mpeg2

[sneaker]

Can you cut a short sample that includes both lines CCExtractor catches as well as lines that it misses?

[DeafYakuza]

Here are two samples for instance:

Extracted by CCExtractor:


[Attachment 49339 - Click to enlarge]

Extracted by ProjectX:


[Attachment 49340 - Click to enlarge]

[sneaker]

I'm not talking about screenshots but parts of the TS file cut via e.g. DGSplit or ffmpeg seeking.

[DeafYakuza]

Here are two files, the one is with image screen and the other only black.


https://www81.zippyshare.com/v/dmcs48Ee/file.html
https://www81.zippyshare.com/v/ma78z5hu/file.html

PW matches my usename.

[sneaker]

"Star_Trek_ Beyond.ts" doesn't play in any of my software? Not even video or audio.


P.S.: Use forum attachments instead of external hosters next time. Easier to access for others.

[DeafYakuza]

Yes, right but the software ccextracter can extract the subtitles from this video-ts.

[DeafYakuza]

I found the way to extract subtitles from damage videofile (movie.ts) via ProjectX which there are no video and audio, just subtitles.
Open the presettings and go to options tab to disable the hack 'enable HD subtitle' if there is no HD then go to subtitles tab and make sure which subtitles there are (dvb-subtitles, or teletext subtitles or both) so that you can select number for subtitles from teletext properly.
The last setting is for subtitle export formats, choose ssa format. If you want SUP file, you have to enable the hack for add. export as VobSub (idx+sub).
Then close the window and press prepare >> to choose demultiplex or go to 'Quick Start' button. -Done!