Feature Request: Route only a portion of channel / layer

[silid]

When routing between channels of different dimensions the video is scaled. When working in video wall environments this can result in undesirable downscaling as the incoming video will then be scaled up using a transform to the desired segment. The resulting video has lost resolution.

I suggest that the source should be able to be defined with at least starting xy position and either with size matching destination channel or with width and height defined and the resulting cutout scaled to the destination channel.

[jesperstarkar]

Related: #673 an #674

[swordh]

Want this feature! Perfekt for when you are using a LED wall!

[Julusian]

With https://github.com/CasparCG/server/pull/1493 and https://github.com/CasparCG/server/pull/1433, doing video walls is simpler and can be done with a single channel.

I am pretty sure layer routes are being done prior to any scaling of the source, allowing you to do the correct scale and crop with mixer commands on the destination layer. And channel routes will be routing at the channel resolution after compositing has been done. Now that channels can be custom resolutions, hopefully this is no longer an issue? Again, a mixer scale and crop can be done on the destination layer