On 2024-03-13 12:57 pm, Anton Khirnov wrote:
ffmpeg | branch: master | Anton Khirnov<an...@khirnov.net>  | Mon Feb 19 
10:27:44 2024 +0100| [a9193f7b7d65aafa326e25571c6672636a8ee3d2] | committer: Anton 
Khirnov

fftools/ffmpeg: add loopback decoding
...
+E.g. the following example:
+
+@example
+ffmpeg -i INPUT                                        \
+  -map 0:v:0 -c:v libx264 -crf 45 -f null -            \
+  -dec 0:0 -filter_complex '[0:v][dec:0]hstack[stack]' \
+  -map '[stack]' -c:v ffv1 OUTPUT

Can you add an example showing the assignment of a specific decoder along with a lavc generic + private option to a loopbacked stream?

Are there any limitations to loopback decoding e.g. would a vpx w/alpha encode be decoded back to a alpha pix fmt?

Regards,
Gyan
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