Reply To: OSSC + Puteltal Capture Card issues on Linux

[RobertTheSable]

The card is obviously set to capture 1280×720. Either change that value, or use a program like OBS to scale the video signal to 1280×720 beforehand.

I would except the card doesn’t present the option to select a higher resolution with 960p input.

Here are the resolutions the card reports are available in 960p mode:

$ v4l2-ctl --list-formats-ext
ioctl: VIDIOC_ENUM_FMT
        Type: Video Capture

        [0]: 'MJPG' (Motion-JPEG, compressed)
                Size: Discrete 1280x720
                        Interval: Discrete 0.017s (60.000 fps)
                        Interval: Discrete 0.033s (30.000 fps)

Compare this to what’s reported with 1080p input:

$ v4l2-ctl --list-formats-ext                                              
ioctl: VIDIOC_ENUM_FMT
        Type: Video Capture

        [0]: 'MJPG' (Motion-JPEG, compressed)
                Size: Discrete 1920x1080
                        Interval: Discrete 0.017s (60.000 fps)
                        Interval: Discrete 0.033s (30.000 fps)
                Size: Discrete 1280x720
                        Interval: Discrete 0.017s (60.000 fps)
                        Interval: Discrete 0.033s (30.000 fps)

And 480p:

$ v4l2-ctl --list-formats-ext
ioctl: VIDIOC_ENUM_FMT
        Type: Video Capture

        [0]: 'MJPG' (Motion-JPEG, compressed)
                Size: Discrete 720x480
                        Interval: Discrete 0.017s (60.000 fps)
                        Interval: Discrete 0.033s (30.000 fps)

These are the same options OBS shows.

I tested a bit passing the card to a Windows VM and saw the same behavior, so I believe the issue is on the hardware level.