[FFmpeg-user] pgssub direct to .sub & .idx ? Possible?

Tue Jun 10 16:53:59 EEST 2025

On Tue, Jun 10, 2025 at 1:39 PM Mark Filipak <
markfilipak.imdb-at-gmail.com at ffmpeg.org> wrote:

> Is there a workaround for the failure below? If there is, it will save me
> an extra, mkvextract step
> and about 10 minutes per movie.
>
> Thanks!--Mark.
>
>
> I've been doing this:
>
> Next, convert 'hdmv_pgs_subtitle's to 'dvd_subtitle's; make an mkv that
> contains only subtitles.
> It takes 5 to 10 minutes.
> Note that the step following this step extracts only dvd subtitles and
> only from mkv transports.
>
> ffmpeg^
>   -i "y:\BDMV\STREAM\00000.m2ts"^
>   -map 0:s:0 -s 1920x1080 -c:s dvdsub -f matroska^
>   "c:\2001, A SPACE ODYSSEY [1968].mkv"
>
> Next, make idx and sub files. Both are needed for SubtitleEdit.
> It takes one or two seconds.
>
> "c:\Program Files\MKVToolNix\mkvextract"^
>   "c:\2001, A SPACE ODYSSEY [1968].mkv"^
>   tracks 0:"c:\2001, A SPACE ODYSSEY [1968]"
>
>
> It would be more efficient to do this:
>
> ffmpeg^
>   -i "y:\BDMV\STREAM\00000.m2ts"^
>   -map 0:s:0 -s 1920x1080 -c:s dvdsub^
>   "c:\2001, A SPACE ODYSSEY [1968].sub"

Which subtitle format is accepting dvdsub codec stream?

.sub extension you use here is for microdvd codec stream only and thus not
possible.

What you want to do?

Do you want to transcode input subtitle codec stream to another subtitle
codec and container, which one?

Does files what mkvextracts outputs/produce in your above command is
recognized by ffmpeg in any way?

>
> Unfortunately, that fails:
>
> C:\Windows\System32>ffmpeg^
> More?  -i "y:\BDMV\STREAM\00000.m2ts"^
> More?  -map 0:s:0 -s 1920x1080 -c:s dvdsub^
> More?  "c:\2001, A SPACE ODYSSEY [1968].sub"
> ffmpeg version 2025-06-02-git-688f3944ce-full_build-www.gyan.dev
> Copyright (c) 2000-2025 the FFmpeg
> developers
>    built with gcc 15.1.0 (Rev4, Built by MSYS2 project)
>    configuration: --enable-gpl --enable-version3 --enable-static
> --disable-w32threads
> --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls
> --enable-lc
> ms2 --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma
> --enable-libsnappy --enable-zlib
> --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enabl
> e-avisynth --enable-libbluray --enable-libcaca --enable-libdvdnav
> --enable-libdvdread --enable-sdl2
> --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enab
> le-libdavs2 --enable-libopenjpeg --enable-libquirc --enable-libuavs3d
> --enable-libxevd
> --enable-libzvbi --enable-liboapv --enable-libqrencode --enable-librav1e
> --enable
> -libsvtav1 --enable-libvvenc --enable-libwebp --enable-libx264
> --enable-libx265 --enable-libxavs2
> --enable-libxeve --enable-libxvid --enable-libaom --enable-libjxl --en
> able-libvpx --enable-mediafoundation --enable-libass --enable-frei0r
> --enable-libfreetype
> --enable-libfribidi --enable-libharfbuzz --enable-liblensfun
> --enable-libvidst
> ab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm
> --enable-cuvid --enable-dxva2
> --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl
> --enable-nvdec --enable-nvenc --enable-vaapi --enable-libshaderc
> --enable-vulkan --enable-libplacebo
> --enable-opencl --enable-libcdio --enable-openal --enable-libgme --
> enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb
> --enable-libmp3lame
> --enable-libshine --enable-libtheora --enable-libtwolame
> --enable-libvo-amrwbenc --
> enable-libcodec2 --enable-libilbc --enable-libgsm --enable-liblc3
> --enable-libopencore-amrnb
> --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --ena
> ble-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband
> --enable-libsoxr
> --enable-chromaprint
>    libavutil      60.  3.100 / 60.  3.100
>    libavcodec     62.  3.101 / 62.  3.101
>    libavformat    62.  0.102 / 62.  0.102
>    libavdevice    62.  0.100 / 62.  0.100
>    libavfilter    11.  0.100 / 11.  0.100
>    libswscale      9.  0.100 /  9.  0.100
>    libswresample   6.  0.100 /  6.  0.100
> [mpegts @ 00000000026e2340] Failed to open codec in
> avformat_find_stream_info
> [mpegts @ 00000000026e2340] start time for stream 9 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 10 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 11 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 12 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 13 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 14 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 15 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 16 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 17 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 18 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 19 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 20 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 21 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 22 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 23 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 24 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 25 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] start time for stream 26 is not set in
> estimate_timings_from_pts
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 9
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 10
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 11
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 12
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 13
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 14
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 15
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 16
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 17
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 18
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 19
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 20
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 21
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 22
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 23
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 24
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 25
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> [mpegts @ 00000000026e2340] Could not find codec parameters for stream 26
> (Subtitle:
> hdmv_pgs_subtitle (pgssub) ([144][0][0][0] / 0x0090)): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> Input #0, mpegts, from 'y:\BDMV\STREAM\00000.m2ts':
>    Duration: 02:28:51.68, start: 11.650667, bitrate: 22336 kb/s
>    Program 1
>    Stream #0:0[0x1011]: Video: vc1 (Advanced) (VC-1 / 0x312D4356),
> yuv420p(progressive), 1920x1080
> [SAR 1:1 DAR 16:9], 23.98 fps, 47.95 tbr, 90k tbn, Start 11.650667
>    Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
> 5.1(side), fltp, 448 kb/s, Start
> 11.650667
>    Stream #0:2[0x1101]: Audio: pcm_bluray (HDMV / 0x564D4448), 48000 Hz,
> 5.1(side), s16, 4608 kb/s,
> Start 11.650667
>    Stream #0:3[0x1102]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
> 5.1(side), fltp, 448 kb/s, Start
> 11.650667
>    Stream #0:4[0x1103]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
> 5.1(side), fltp, 448 kb/s, Start
> 11.650667
>    Stream #0:5[0x1104]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
> 5.1(side), fltp, 448 kb/s, Start
> 11.650667
>    Stream #0:6[0x1105]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
> 5.1(side), fltp, 448 kb/s, Start
> 11.650667
>    Stream #0:7[0x1106]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
> 5.1(side), fltp, 448 kb/s, Start
> 11.650667
>    Stream #0:8[0x1107]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo,
> fltp, 192 kb/s, Start
> 11.650667
>    Stream #0:9[0x1200]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:10[0x1201]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:11[0x1202]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:12[0x1203]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:13[0x1204]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:14[0x1205]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:15[0x1206]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:16[0x1207]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:17[0x1208]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:18[0x1209]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:19[0x120a]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:20[0x120b]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:21[0x120c]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:22[0x120d]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:23[0x120e]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:24[0x120f]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:25[0x1210]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
>    Stream #0:26[0x1211]: Subtitle: hdmv_pgs_subtitle (pgssub)
> ([144][0][0][0] / 0x0090), Start 11.650667
> Stream mapping:
>    Stream #0:9 -> #0:0 (hdmv_pgs_subtitle (pgssub) -> dvd_subtitle
> (dvdsub))
> Press [q] to stop, [?] for help
> [microdvd @ 00000000026ea880] microdvd muxer supports only codec microdvd
> for type subtitle
> [out#0/microdvd @ 00000000027dbb40] Could not write header (incorrect
> codec parameters ?): Invalid
> argument
> [sost#0:0/dvdsub @ 00000000026e9d80] Task finished with error code: -22
> (Invalid argument)
> [sost#0:0/dvdsub @ 00000000026e9d80] Terminating thread with return code
> -22 (Invalid argument)
> [out#0/microdvd @ 00000000027dbb40] Nothing was written into output file,
> because at least one of
> its streams received no packets.
> size=       0KiB time=N/A bitrate=N/A speed=N/A elapsed=0:02:57.80
> Conversion failed!
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