On Thu, Jul 02, 2020 at 01:54:52PM +0200, Marcus Glocker wrote:
Hello Marcus,
> Can you send me your cams USB device id again please?
Here's the relevant excerpt from usbdevs:
addr 04: 046d:0892 Logitech, HD Pro Webcam C920
high speed, power 500 mA, config 1, rev 0.19, iSerial
On Sat, Jun 27, 2020 at 02:41:25AM +0200, Ingo Feinerer wrote:
Hello Ingo,
> Same behavior with an old MS LifeCam NX-6000 (which only supports
> MJPEG). It works up to 160x120 without problems on USB3 ports and up to
> the maximum resolution supported by the camera on USB2 ports (i.e., USB3
>
On Fri, Jun 26, 2020 at 10:20:04PM +, Laurence Tratt wrote:
> This turns out to be a total red herring -- modern FFmpeg deals with the
> MJPEG fine and you *can* get it to work for pointlessly small resolutions on
> OpenBSD. Using this command:
>
> ffplay -f v4l2 -input_format mjpeg
On Thu, Jun 25, 2020 at 11:21:51PM +0100, Laurence Tratt wrote:
> It seems this is because the Logitech C920 has been revised (mine has the
> USB ID 046d:0892) and no longer supports a separate H264 mode.
This turns out to be a total red herring -- modern FFmpeg deals with the
MJPEG fine and you
On Wed, Jun 24, 2020 at 08:51:37AM +0100, Laurence Tratt wrote:
> External webcams don't seem to work fully correctly with the uvideo driver
> and mjpeg? If I use this command as an example (since it's cross platform):
>
> $ ffmpeg -f v4l2 -input_format mjpeg -video_size 1280x720 -framerate 30
