Hi,
Herman Robak schrieb:
Another re-think: Do we need a project framerate?
The framerate is a property of the source material and the rendered
output. Does the render pipeline need a fixed internal framerate?
I would say yes. Of course one can convert framerates "on the fly"
(which is not trivial), but the results might not be, what the user wants.
In some cases, one wants to repeat/drop pictures (resulting a photo slideshow
for very low input framerates), in other cases, one wants to interpolate motion
scenes (like in yuvmotionfps). Maybe an option would be to have a configurable
fps
converter, which is applied right before a video stream is composited with some
other video stream, but this would require user interaction (and knowlegde).
IMO, framerate, interlace mode and audio samplerate should be the same in the
whole
project, everything else will likely result in conversion overhead and/or user
confusion. Colormodel, image size and audio channel configuration can (and
should
be allowed to) be different.
If one wants to support different framerates, one should do it right and support
non-constant framerates as well, since they can occur e.g. in YouTube downloads.
Burkhard
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