On Thu, Jul 30, 2020 at 3:09 PM Tom Murphy <amin...@gmail.com> wrote:
> > According to ffprobe, the input video has colorspace 'yuv420p10le' > > (i.e. 10-bit video), but the output is only 'yuv420p'. So it does > > appear somewhere in the pipeline it's being downgraded to 8-bit? (Or > > that there's a default 8-bit output setting somewhere?) > > > > Maybe I should have phrased this last bit more clearly as a question: > does the fact it's input 10-bit and output 8-bit imply I _can't_ > currently get the data through the whole pipeline 10-bit > Correct. Brian meant it should support it as an input and decode it correctly, but it will be conformed to one of the image formats supported by the services. The mlt_image_yuv422p16 he mentions only works for decklink producer to avformat consumer currently. It also possible to convert 10-bit YUV to 8-bit full range sRGB, which most effects support, convert to 10-bit YUV, and encode as 10-bit. I think Brian was also talking a bit technical about what can be possible with small changes if you are a developer. Currently, the avformat producer (decoder) does not output to mlt_image_yuv422p16, and I doubtful that is going to be the preferred image format for a future processing pipeline that supports 10-bit end-to-end.
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