Logitech webcams

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I just bought C930e. To my surprise unlike my old c920 it does not have h264 hardware encoding. Using mjpeg makes video more noisy. In the internet people are reporting that at some point logitech removed this feature from their products. So basically new C9XX can be different product than old C9XX.

Logitech webcams

Basic Information
Release Year	2012
Product Type	Cameras
In Production	Yes
Official Website	https://www.logitech.com/en-us/products/webcams/c930e-business-webcam.960-000971.html

Consumer impact summary

Overview of concerns that arise from the conduct towards users of the product (if applicable):

• User Freedom
• User Privacy
• Business Model
• Market Control

---

Add your text below this box. Once this section is complete, delete this box by clicking on it and pressing backspace.

• Feature removal
• False advertising

H264 encoding feature removed at some point. MJPEG has a lower quality and lots of noise. Uncompressed stream does not handle 30fps in 1920x1080.

The model numbers were not changed to reflect degradation.

The website still claims it has this capability.

https://www.logitech.com/en-us/products/webcams/c920e-business-webcam.960-001401.html?sp=1&searchclick=Logitech#specs

The only article from logitech was removed:

https://web.archive.org/web/20220219224240/https://www.logitech.com/en-us/video-collaboration/resources/think-tank/articles/article-logitech-and-h264-encoding.html

Testing

# To display all codecs:
v4l2-ctl --info --list-formats -d /dev/video2

Driver Info:
	Driver name      : uvcvideo
	Card type        : Logitech Webcam C930e
	Bus info         : usb-0000:00:14.0-4
	Driver version   : 6.1.140
	Capabilities     : 0x84a00001
...
	Type: Video Capture
	[0]: 'YUYV' (YUYV 4:2:2)
	[1]: 'MJPG' (Motion-JPEG, compressed)

# To display all resolutions/fps:
v4l2-ctl --info --list-formats-ext -d /dev/video2

See also

https://en.everybodywiki.com/List_of_cameras_with_onboard_video_compression

https://askubuntu.com/questions/1229986/wrong-webcam-driver

https://www.reddit.com/r/linux/comments/f2icry/psa_logitech_has_removed_hardware_h264_encoder/

https://www.reddit.com/r/logitech/comments/14cmrbt/difference_between_three_revisions_of_c920_webcam/

Article by Logitech is now removed from their website:

https://web.archive.org/web/20220219224240/https://www.logitech.com/en-us/video-collaboration/resources/think-tank/articles/article-logitech-and-h264-encoding.html

https://support.logi.com/hc/en-gb/articles/360036050333-Why-don-t-we-use-H-264