[BUG] changing colour space with VUI (wrong syntax passed to FFMPEG)

[MacNB]

use:
Primes to bt470bg, Transfer to bt709 and Matrix to smpte170m.

prores_metadata=color_primaries=bt470bg:color_trc=bt709:colorspace=smpte170m

works fine here.


Cu Selur

Thanks for a quick reply.

The reason I was trying to change the colour space was because the video file I captured (using Matrox MXO2's Vetura App) has the colour primaries as BT.601 NTSC even though the source is PAL. I think either that's a bug in the capture s/w that is incorrectly setting the metadata to NTSC, or it really is capturing a PAL tape and converting it to NTSC.
There's no setting in the capture s/w to select PAL & NTSC capture.

That's why I was trying to 'turn' it back to PAL. 
Setting colorspace=smpte170m (which I believe is NTSC) would return it to NTSC ?