[FFmpeg-user] Pixel format: default and filter?

amindfv at mailbox.org amindfv at mailbox.org
Sun Sep 13 18:27:03 EEST 2020

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?


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