Timeline for ffmpeg convert .png to DNxHD .mov and scale color to bt709
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 30, 2019 at 6:04 | comment | added | Gyan | PNGs typically are in sRGB colorspace - which has same primaries as bt709, but a different transfer function (gamma) and colorspace. | |
| Oct 29, 2019 at 20:55 | comment | added | Spencer |
Ok I did get this monster to work: colorspace=space=bt709:trc=bt709:primaries=bt709:range=tv:format-yuv422p:iall=bt601-6-625 however I am still above/below legal range in some of the channels. Possibly this is due to compression... Anyway my question is what the input characteristics should be? I chose bt610-6-625 arbitrarily, and when I scan my pngs with Exiftool the only metadata I get is "RGB" but not color space. Visually this looks ok, so maybe it is fine?
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| Oct 29, 2019 at 20:38 | comment | added | Spencer | Thanks for the info but when I tried setting the format to yuv422p10le I experience some color shifting, particularly in green, and when sampling the output in a few different applications it is not "clean" in that some values go above and below legal range. From what I've read online "colorspace" seems the best way to handle this I am just unsure of the syntax. | |
| Oct 29, 2019 at 19:04 | history | answered | llogan | CC BY-SA 4.0 |