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

[Mark Filipak]

UPDATE

On 10/06/2025 10.46, Paul B Mahol wrote:
> On Tue, Jun 10, 2025 at 2:37 PM Mark Filipak <
> markfilipak.imdb-at-gmail.com at ffmpeg.org> wrote:
> 
>> Thank you, Paul.
>>
>> ffmpeg^
>>    -i "y:\BDMV\STREAM\00000.m2ts"^
>>    -map 0:s:0 -s 1920x1080 -c:s dvdsub^
>>    "c:\2001, A SPACE ODYSSEY [1968].sup"
>>
>> It failed:
>> (The conversion to dvdsub seemed to go fine. The problem seems to be with
>> the sup muxer.)
>
> Replace "-c:s dvdsub" with "-c:s copy".

That works -- it executes without error -- but it doesn't work -- SubtitleEdit will not accept pgssub.

I need to convert pgssub to dvdsub to make SubtitleEdit happy.

***** UPDATE: That works!

ffmpeg^
  -i "y:\BDMV\STREAM\00000.m2ts"^
  -map 0:s:0 -s 1920x1080 -c:s copy^
  "c:\2001, A SPACE ODYSSEY [1968] try.sup"

"c:\Program Files\Subtitle Edit\SubtitleEdit"^
  "c:\2001, A SPACE ODYSSEY [1968] try.sup"

SubtitleEdit _did_ accept pgssub. It did launch, and it launched in OCR mode!

So, it appears that, instead of not accepting pgssub, there may be a problem with the way 
SubtitleEdit handles pgssub-in-m2ts.

So, I can now combine Steps 2 & 3 into a single Step. If the suggested pgssub-in-m2ts to 
dvdsub-in-mp4 also works -- I foresee no reason why it wouldn't -- then I should be able to do this: 
pgssub-in-m2ts to pgssub-in-mp4 to SubtitleEdit. That would fold my Steps 2 & 3 into Step 1! That 
would turn my 5-Step factory into a 3-Step factory and save me about 10 minutes per movie.