[FFmpeg-user] FFV1/rgb48le issue: ffmpeg automatically chooses gbrp16le to decode an rgb48le FFV1 file.
Carl Eugen Hoyos
ceffmpeg at gmail.com
Wed Aug 17 23:39:12 EEST 2016
2016-08-17 18:23 GMT+02:00 Kieran O Leary <kieran.o.leary at gmail.com>:
> Would it be correct to state that 16-bit FFV1 RGB will always be
I don't think this is correct:
FFV1 allows to encode 16 bpc RGB data. FFmpeg accepts its internal
pix_fmts rgb48 and gbrp16 for encoding (this can be rgb48le or rgb48be
depending on your hardware) and provides gbrp16 (again, this can be
either gbrp16le or gbrp16be) output on decoding. I believe this is not
very likely to change.
Another library (or player) supporting ffv1 decoding may provide a packed
rgb format (not necessarily rgb) on decoding or another format that also
allows to represent 16bpc rgb.
> even if the source is rgb48?
This part of your question makes me a little nervous:
ffv1 neither stores "rgb48" nor "gbrp16", it cannot know the "source" format,
it does support 16bit per component though and it does allow to distinguish
between "yuv" and "rgb".
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