[FFmpeg-user] FFv1: Encode rgb48le?
Carl Eugen Hoyos
cehoyos at ag.or.at
Sat Jun 9 07:52:33 CEST 2012
Peter B. <pb <at> das-werkstatt.com> writes:
> On 06/06/2012 08:39 PM, Carl Eugen Hoyos wrote:
> > Peter B. <pb <at> das-werkstatt.com> writes:
> >> "Incompatible pixel format 'rgb48le' for codec 'ffv1',
> >> auto-selecting format 'yuv420p16le'"
> > I consider it a bug that FFmpeg does not auto-select yuv444p16
> I must admit, that I don't understand the "0" in RGB
> colorspaces (0RGB, RGB0)...
RGB24 is RGB with 8bit colour information per pixel,
RGBA (and friends) is RGB24 plus eight bit transparency
information. RGB0 is a 32bit representation of RGB24,
there is no transparency information hidden there.
There are two reasons for RGB0's existence:
ffv1 (and other encoders) in the past claimed to support
RGBA but actually supported only RGB0
It might be faster to process RGB0 than RGB24 (for
(The naming is FFmpeg-specific afaik.)
> > 16bit rgb encoding is not as trivial as I hoped but certainly
> > possible.
> Interesting to hear that.
> What is necessary in order to support it?
encode_rgb_frame() needs to support bits_per_raw_sample>8
similar to encode_plane()
More information about the ffmpeg-user