[Cin] Record camcorder video stream via v4l2 and hdmi-usb3 capture as input device

[Terje J. Hanssen]

I tried to Record camcorder video stream via v4l2 and hdmi-usb3 capture 
as input device.

ms2130 is more powerful but else similar to the usb2 EasyCap device 
example described in the CinGG manual
https://cinelerra-gg.org/download/CinelerraGG_Manual/Use_Case_1_a_EasyCap.html

My Sony FX7-E 1080i50 HDV camcorder was connected via HDMI to a ms2130 
usb3 capture card.

My procedure description here on openSUSE Tumbleweed-Slowroll, kernel  
6.12.30-1.0.4.sr20250501-longterm

~/Applications> ./CinGG-20250430-x86_64.AppImage
Cinelerra Infinity - built: Apr 30 2025 07:18:32

1) Settings > Preferences > Record

  * File format: FFMPEG     mp4

Video In:

  * Record driver: Video4Linux2 /dev(video0

The first thing I noticed was that default Record video setting was SD 
NTSC, not PAL as else according to my time zone.
Could this possibly be changed as else?

  * Frames to record on disk: 30 (default)?

Changed frame to a camcorder resolution and fps supported by v4l2 and 
ms2130:

  * Frame: 1920 x 1080 (was default NTSC SD)
  * fps: 50 (progressive)


File > Record r

Two windows opened, one showing the running record time etc. and the 
other the camera window image.


My simple question are:

 1. Should the video stream be "recorded" and stored somewhere
    (according to some settings)?
 2. Can it be saved as a video file type on disk?

I am also interested to see if yuv422p color sampling is retained.

A copy from the running terminal:

    BC_DisplayInfo::gl_fb_config failed
    DeviceV4L2Base::v4l2_open pixels="YUYV"; res="1920x1080 1600x1200
    1360x768 1280x1024 1280x960 1280x720 1024x768 800x600 720x576
    720x480 640x480"
    v4l2 s_fmt 1920x1080 YUYV
    DeviceV4L2Base::v4l2_open VIDIOC_S_STD: Uegnet «ioctl» for enhet


Terje J. Hanssen
'

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