Recording video with the Logitech C910 on Ubuntu 11.04 with GUVCViewer 1.4.1

[hellmind]

Awful, :(

I got 5 c910 and yet, there are no way to make it work in linux at full speed like in windows :(

MJPG mode is bugged , logitech says its ffmpeg fault's, and ffmpeg don't want to fix because it is for a single product (c910) patch.

Is there any camera like this but working at least 720p@30 on linux?

the best I did with my c910 is 720p@15

[LunaVorax]

@hellmind With all the respect I owe to ffmpeg, I agree that their decision not to fix this C910 specific bug is retarded.

I'm very sorry, but I don't own any other 720p-capable webcam than the C910.

You should ask on the Ubuntu, Arch Linux and other forums. I'm pretty sure you'll get a satisfying answer.

[figadorable]

@hellmind I record 1080p @ 24-30fps (becomes lower when it is dark) on my super-powerful eee-901HA.

At 1600x896 the video flux is 3.4 megabytes per second and

at 1920x1080 it is 8 megabytes per second. In both cases the CPU (intel Atom N270) is loaded by 12%. The command line is

ffmpeg -s 1920x1080 -f video4linux2 -vcodec mjpeg -i /dev/video0 -vcodec copy video.avi

Note that a)you have to compile ffmpeg manually b) stupid youtube does not understand it c) you reencode it with mencoder

[analfabetovirtual]

no 1080p?

[LunaVorax]

@analfabetovirtual Not for no, I'll try again soon if you want.

Still, USB 2.0 is not speedy enough to allow 1080p at more than 7~14fps (iirc).

[figadorable]

@LunaVorax this is wrong, see my post below

[ThalamusMinimus]

@LunaVorax

Depends on the compression & color-depth used: e.g. raw (uncompressed) 1080p in 42-bit color obviously would stutter thru a USB2.0 socket... but Blu-Ray quality 1080p @ 30fps needs only 4.5 MB/s (see: wikipedia /wiki/List_of_device_bit_rates­#Storage Blu-Ray and HD-DVD).

USB2.0 is typically good for 20 MB/s at the least, so you can get quality thru a USB2.0 that at least pro film critics rave about...or actually more than 4x that quality [4.4 = 20MB/s divided by 4.5MB/s].)

[figadorable]

@analfabetovirtual yes, see my post below

[CassidyJamesBlaede]

I just got the same camera. Was there any special driver installation you had to do?

[LunaVorax]

@CassidyJamesBlaede No!

It's an UVC camera, so the Linux kernel is supposed to handle this automatically.

[CassidyJamesBlaede]

@LunaVorax yeah, awesome! I've played around with it a bit and *wow,* it looks nice. I love that you get full control of all the settings and everything. I'm looking at getting a nice studio backdrop and lighting, and that'll come in handy.

[Darkmagic424]

how do you record then review it on movie player then upload on youtube

[LunaVorax]

@Darkmagic424 So far you have enough information in the video description.

You just have to choose the correct resolution, choose the RGB3 mode (or BGR or YV12).

Then click the record button, a video file will be created in your home folder.

There's nothing much to say I guess.

What can't you do ?

[sk7ca]

DUDE! THAT SHIT FUCKING WORKS!!!!!11!! :D