#9167: Color changed when an image converting to video
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Reporter: kvsico | Owner:
Type: defect | Status: closed
Priority: normal | Component:
| undetermined
Version: unspecified | Resolution: invalid
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by pdr0):
Replying to [comment:23 Balling]:
> Replying to [comment:22 pdr0]:
> >You might be able to use VP9 in RGB mode
>
> There is no RGB support yet, at least in avc. There is 10 bit pipeline,
but there may be some bugs in it, like HDR propogation on SDR 10 bit
video. See
https://bugs.chromium.org/p/chromium/issues/detail?id=1191915&sort=&groupby=&colspec=&x=&y=&mode=&cells=&num=&q=Hdr&can=1
Nice to see some 10bit progress!
VP9 RGB doesn't seem to work properly in chrome either (but decodes ok
with other decoders)
But interestingly AV1 works for RGB (gbrp), but chrome is +1 blue channel
for some reason 238,77,46 . (my chrome is 89 and up to date)
ffmpeg -t 5 -r 1 -loop 1 -i 1280x720_RGB_238,77,45.png -c:v libaom-av1
-crf 18 av1_rgb.webm -y
Color space : RGB
Bit depth : 8 bits
Writing library : Lavc58.132.100 libaom-av1
Default : Yes
Forced : No
Color range : Full
Color primaries : BT.709
Transfer characteristics : sRGB/sYCC
Matrix coefficients : Identity
ffmpeg
Stream #0:0: Video: av1 (High), gbrp(pc, gbr/bt709/iec61966-2-1,
progressive),
Other players display it correctly as 238,77,45, including firefox,
ffplay, mpv
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Ticket URL: <https://trac.ffmpeg.org/ticket/9167#comment:24>
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