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

Tue Jun 10 16:58:20 EEST 2025

On Tue, Jun 10, 2025 at 1:53 PM Paul B Mahol <onemda at gmail.com> wrote:

>
>
> 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?
>

Perhaps, you want to use .sup extension without providing any subtitle
codec name in ffmpeg command.

That should do similar if not exact same thing like mkvextract tool.

>
>
>
>
>>
>> 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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>