no more hslv format ?

[Ralph Corderoy]

Hi Richard,

> > ffmpeg can produce PNGs, one per frame, and convert only a few
> > specific seconds to avoid tens of thousands of them
>
> Would you first need to convert the H.264 or H.265 to raw video?  If
> one PNG is of an I-frame and the next is a P-frame or B-frame they are
> bound to be different.

No, AIUI ffmpeg(1) produces a PNG that's the whole assembled picture,
just as if one hit `Pause' when watching TV.  Any indication of how that
was built up from the input video encoding is lost.

    ffmpeg -i foo.mp4 -t 1 foo-%04d.png

-- 
Cheers, Ralph.
https://plus.google.com/+RalphCorderoy