Avidemux Forum

I took a 1080p video using OBS and AMD H265. The video colors came out OK...i then tried downscaling it to 720p and Mpeg4 AVC (x264) in Avidemux and the colors came out grayish.

What video output/settings should i be using to avoid the colors becoming grayish? I want to avoid using HEVC (x265) if possible because windows refuses to display thumbnails for videos using x265...

Is this video HDR?

Quote from: szlldm on February 19, 2025, 05:46:19 PMIs this video HDR?

I dont think so. Mediainfo shows the color primaries as BT.709.

QuoteVideo
ID :   1
Format :   HEVC
Format/Info :   High Efficiency Video Coding
Format profile :   Main@L6.2@Main
Codec ID :   V_MPEGH/ISO/HEVC
Duration :   19 s 334 ms
Width :   1 920 pixels
Height :   1 080 pixels
Display aspect ratio :   16:9
Frame rate mode :   Constant
Frame rate :   60.000 FPS
Color space :   YUV
Chroma subsampling :   4:2:0
Bit depth :   8 bits
Default :   No
Forced :   No
Color range :   Full
Color primaries :   BT.709
Transfer characteristics :   sRGB/sYCC
Matrix coefficients :   BT.709

you need to set up "output 2" tab of x264 settings with those

Color range :   Full
(check full range samples)
Color primaries :   BT.709
Transfer characteristics :   sRGB/sYCC
(apparently IEC 61966-2-1)
Matrix coefficients :   BT.709