[FFmpeg-devel] [PATCH v24 00/21] Subtitle Filtering

[Michael Niedermayer]

On Mon, Dec 13, 2021 at 11:40:16PM +0000, Soft Works wrote:
> New in V24
> 
> - Fixes bugs as reported by Michal
> - graphicsub2video: use 1x1 output frame size as long as subtitle size is unknown (0x0) and no size is not explicitly set
> - decode: set subtitle frame size from decoding context
> - ffmpeg: re-init graph when subtitle size changes
> - ffmpeg_filter: always insert subscale filter for sub2video compatibility
> - vf_overlaytextsubs: ensure equal in/out video formats
> 
> GITHUB Branch: https://github.com/softworkz/FFmpeg/tree/subs_v24_plus

I didnt immedeatly spot any "hard" failures from this.
Quite a few cases change output, should i report these ? I didnt see anything obviously wrong vissually in any

heres a random pick:
./ffmpeg -f lavfi -i "movie=tickets/1332/Starship_Troopers.vob[out0+subcc]"  -vn -map s /tmp/file-eia608.srt

@@ -6,12 +6,12 @@
 2
 00:00:15,249 --> 00:00:18,252
 <font face="Monospace">{\an7}- TAKE THE NUMBER TWO CHAIR,
-\h\hIBANEZ.
+  IBANEZ.
 - YES, MA’AM.</font>
 
 3
 00:00:22,756 --> 00:00:27,761
-<font face="Monospace">{\an7}\h\h\h\h\h\h\h\h\h\h\h\h\h\h\h\h\h\h\h\hIDENTIFY.
+<font face="Monospace">{\an7}                    IDENTIFY.
 IBANEZ, "T"-THREE-TWO-FIVE-"A,"
 CLEAR.</font>


[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Asymptotically faster algorithms should always be preferred if you have
asymptotical amounts of data
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