This is the epitome of a “quality of life” suggestion since 99 times out of 100 times there SRT subtitles are available on OpenSubtitles (so this is only useful for that 1%), but Subler (GitHub - juice/subler: mp4 muxer and editor, to add tx3g subtitles, video, audio and chapters tracks compatible with quicktime in mp4) has this feature on macOS and is open source to use as a reference if you ever get bored.
after testing on Apple TV 4K (1st and 2nd gen) - the silicon is pretty fast, “generating OCRed subtitles from PGS” takes at about 5 - 10 mins per movie so the output of the library for a single line in said movie is like 10x faster than real time meaning the OCR conversion would “look instant” to a user who wants to “customize their [insert non-srt format here] subtitles” but … without AV1 hardware decoding idk, i should test that
but still, for me, well, i can write a script to automate this but random users who can’t do that, this OCR feature would def help them
Great idea! This would have the added advantage of allowing PGS subtitles to be seen over AirPlay, since they become text.
It would be very useful to be able to adjust PGS subtitles size/zoom and vertical offset. They are often quite big and high. I know these subtitles have fixed authored style and position, but it is still possible to process/transform cue images before rendering.