Error opening file: unable to obtain frame size from file

[xyz1001]

Describe the bug
YUView fail to open a h264 file generated by ffmpeg. ffplay is ok.

To Reproduce
Steps to reproduce the behavior:

1. Generate a h264 file by command ffmpeg -f lavfi -i testsrc=duration=10:size=1281x721:rate=30 test.h264
2. Open the file with YUView.

Expected behavior
YUView can open the file normally.

Screenshots

Version (please complete the following information):

• OS: Windows 11 22H2
• Version 2.13

** attachment

• The h264 file generated by ffmpeg

[ChristianFeldmann]

I was able to reproduce this behavior on the latest develop version. Thx for the file and the report ...

[ChristianFeldmann]

Alright this is fixed. The issue was that the h264 bitstream was in 4:4:4 subsampling and there were two tiny bugs hiding in the code. We are overdue again for a release so I will do one.