Am 13.09.2020 um 17:27 schrieb [email protected]:
On Sun, Sep 13, 2020 at 07:06:56AM -0400, Edward Park wrote:
Hi,
ffprobe now reports out.mov being yuv420p. Is this an implicit conversion to a
lower bit depth?
It's just the default output format for overlay. It's commonly used for stuff
across colorspaces (like yuv420p video and argb png logos overlaid) especially
with alpha.
You can set format option in the filter itself to force output format. I assume
it doesn't do any conversions when you overlay two sources with same format
with no alpha internally.
Thanks both, that's helpful. How can I determine the pixel formats that ffmpeg
has chosen for the filters' input and output pads?
Add -v verbose to the command line, then you get a longer console
listing, look for the green lines.
Michael
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