Color change on encoding

[Selur]

Starting with a resetted Hybrid (reset Defaults), enabling all Warnings, loading your source, setting 'FFV1' as encoder, creating a job with mkv container and then closing Hybrid.
I, too, see:

....
<HybridData name="mkvColorMatrix" value="BT709"/>
and
<HybridData name="mkvColorMatrix" value="GBR"/>
differ.

<HybridData name="mkvColorRange" value="Broadcast Range"/>
and
<HybridData name="mkvColorRange" value="Unspecified"/>
differ.

<HybridData name="mkvColorTransferCharacteristics" value="ITU-R BT.709"/>
and
<HybridData name="mkvColorTransferCharacteristics" value="Reserved"/>
differ.

<HybridData name="mkvColourPrimaries" value="ITU-R BT.709"/>
and
<HybridData name="mkvColourPrimaries" value="Reserved"/>
differ.
...

This is correct, since these are setting that changed.
For example, the default:
"<HybridData name="mkvColorMatrix" value="GBR"/>"
changed to
"<HybridData name="mkvColorMatrix" value="BT709"/>"

You told Hybrid it should report any changes, and thus it does.
If you don't want this, do not enable all warnings.
This has nothing to do with color changes.

Using 2024.11.11, loading your file, setting FFV1 as encoder I get:

Input #0, matroska,webm, from 'g:\Output\250frames.mkv':
  Metadata:
    ENCODING_GUI    : Hybrid 2024.11.10.1
    ENCODER         : Lavf61.9.100
  Duration: 00:00:10.43, start: 0.000000, bitrate: 156854 kb/s
  Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), yuv420p(tv, bt709, progressive), 1920x1080, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn (default) (forced)
      Metadata:
        ENCODER         : Lavc61.24.100 ffv1
        BPS             : 111312176
        NUMBER_OF_FRAMES: 9303
        NUMBER_OF_BYTES : 5398821425
        _STATISTICS_WRITING_APP: mkvmerge v88.0 ('All I Know') 64-bit
        _STATISTICS_WRITING_DATE_UTC: 2024-11-11 04:21:23
        _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
        DURATION        : 00:00:10.427000000

Strangely, when I look at the file with mediainfo it reports a wrong length, frame rate and size values for the video.

Video
ID                                       : 1
Format                                   : FFV1
Format version                           : Version 1
Codec ID                                 : V_MS/VFW/FOURCC / FFV1
Duration                                 : 10 s 427 ms
Bit rate mode                            : Variable
Bit rate                                 : 111 Mb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Variable
Frame rate                               : 892.203 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Compression mode                         : Lossless
Bits/(Pixel*Frame)                       : 0.060
Stream size                              : 5.03 GiB
Writing library                          : Lavc61.24.100 ffv1
Default                                  : Yes
Forced                                   : Yes
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709
coder_type                               : Golomb Rice

You do see different color right? You are not just relying on what mediainfo reported, correct?

=> Does the new 2024.11.11 start for you?


Cu Selur