Contrast with importing clips - Again

Help/How To
1

This problem seems to be back. I am importing HEVC UHD Video from a Pixel 8 and also a Pixel 4a phone.
Original:
Codec HEVC
Resolution 2160x3840
Frame Rate 59.402300 (variable)
Format yuvj420p
Color Space ITU-R BT.601
Color transfer ITU-R BT.601
Aspect ratio 9x16
Scan mode Progressive
Color range Full (JPEG)
Rotation 90

Converted video
Same as above except for:
Codec Ut Video
Frame rate 59.940060
Format yuv420p
Color Space & transfer ITU-BT.709

Imported video is washed out completely with very low brightness and contrast

Mediainfo doesn’t show HDR.

1558.txt (3.9 KB)
1558-converted.txt (3.2 KB)

Of course I can add filters and correct each of very many videos, but this just shouldn’t happen in the first place.

Thank you for any help,
Jim Shipman

2

How does it look if you don’t convert it in both Shotcut and another media player?

For the converted, does it look correct if you change Properties > Color range?

3

I have one Pixel video contributed by a user, but I do not know which model–there is no metadata to indicate it. But I see it was recorded in 2021 and with H.264 and also has full color range. I converted it with Best, and it is roughly the same as VLC

image
image1920×1778 349 KB

I noticed your converted video says “Color Space & transfer ITU-BT.709”

In the Convert dialog, do not choose the option Convert to BT.709 colorspace for SDR videos. That option always inserts a heavy tone-mapping, which is not what you want. The tooltip for the checkbox says:

This is useful when the source video is HDR (High Dynamic Range), which requires tone-mapping to the old, standard range.

I will relabel the checkbox after the next release as the strings are currently locked for translation.

4

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