Paul B Mahol wrote:
On 1/26/16, Andy Furniss <[email protected]> wrote:
Andy Furniss wrote:
Here's the assert - after seeing swscale in the first test I tried
format=rgb24 ...
use copy filter before zscale filter.
Anyway using y4m is wrong as it doesnt have frame metadata as
primaries,matrix coefficients etc.
As I said I did also try a "real" input = the transport stream I linked.
I added support for overriding input params in zscale.
Thank you.
so something like this should work:
ffmpeg -i input.y4m zscale=min=709:range=full,format=gbrp out.png
If it asserts, add copy:
ffmpeg -i input.y4m copy,zscale=min=709:range=full,format=gbrp out.png
This works - it will assert without the copy.
Is interlace aware 420 -> * possible?
I notice in the web help -
https://www.ffmpeg.org/ffmpeg-filters.html#toc-zscale
That there are several options at the end that don't appear in ffmpeg -h
full.
Earlier I tried the [o]hsub/vsub so I know they are unrecognised -
maybe they and any others that don't parse should be removed.
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