Re: [linux-sunxi] Re: allwinner-zh/media-codec demo

[@lex]

Interesting, can you check if it is a feature of this camera or the new 
kernel?
If you have OPI PC, can you check that?

On Saturday, March 12, 2016 at 8:10:57 PM UTC-3, Jon Smirl wrote:
>
> Look carefully at my sonix video parameters... 
> notice that there are two /dev/videoX devices 
>
> This is done so that the screen display app can use the the 
> uncompressed stream while forwarding on the h.264 stream without 
> decompressing it. The uncompressed stream does not need much CPU to 
> display. 
>
> jonsmirl@terra:/work/gm/linux-3.3-fa$ v4l2-ctl -d /dev/video1 
> --list-formats-ext 
> ioctl: VIDIOC_ENUM_FMT 
> Index       : 0 
> Type        : Video Capture 
> Pixel Format: 'YUYV' 
> Name        : YUYV 4:2:2 
> Size: Discrete 1280x720 
> Interval: Discrete 0.200s (5.000 fps) 
> Size: Discrete 640x480 
> Interval: Discrete 0.033s (30.000 fps) 
> Interval: Discrete 0.050s (20.000 fps) 
> Interval: Discrete 0.067s (15.000 fps) 
> Interval: Discrete 0.100s (10.000 fps) 
> Interval: Discrete 0.200s (5.000 fps) 
> Size: Discrete 320x240 
> Interval: Discrete 0.033s (30.000 fps) 
> Interval: Discrete 0.050s (20.000 fps) 
> Interval: Discrete 0.067s (15.000 fps) 
> Interval: Discrete 0.100s (10.000 fps) 
> Interval: Discrete 0.200s (5.000 fps) 
>
> Both MJPG and h.264 work at 720P30. 
> Index       : 1 
> Type        : Video Capture 
> Pixel Format: 'MJPG' (compressed) 
> Name        : Motion-JPEG 
> Size: Discrete 1280x720 
> Interval: Discrete 0.033s (30.000 fps) 
> Interval: Discrete 0.050s (20.000 fps) 
> Interval: Discrete 0.067s (15.000 fps) 
> Interval: Discrete 0.100s (10.000 fps) 
> Interval: Discrete 0.200s (5.000 fps) 
> Size: Discrete 640x480 
> Interval: Discrete 0.033s (30.000 fps) 
> Interval: Discrete 0.050s (20.000 fps) 
> Interval: Discrete 0.067s (15.000 fps) 
> Interval: Discrete 0.100s (10.000 fps) 
> Interval: Discrete 0.200s (5.000 fps) 
> Size: Discrete 320x240 
> Interval: Discrete 0.033s (30.000 fps) 
> Interval: Discrete 0.050s (20.000 fps) 
> Interval: Discrete 0.067s (15.000 fps) 
> Interval: Discrete 0.100s (10.000 fps) 
> Interval: Discrete 0.200s (5.000 fps) 
>
> jonsmirl@terra:/work/gm/linux-3.3-fa$ v4l2-ctl -d /dev/video2 
> --list-formats-ext 
> ioctl: VIDIOC_ENUM_FMT 
> Index       : 0 
> Type        : Video Capture 
> Pixel Format: 'H264' (compressed) 
> Name        : H.264 
> Size: Discrete 1280x720 
> Interval: Discrete 0.033s (30.000 fps) 
> Interval: Discrete 0.050s (20.000 fps) 
> Interval: Discrete 0.067s (15.000 fps) 
> Interval: Discrete 0.100s (10.000 fps) 
> Interval: Discrete 0.200s (5.000 fps) 
> Size: Discrete 640x480 
> Interval: Discrete 0.033s (30.000 fps) 
> Interval: Discrete 0.050s (20.000 fps) 
> Interval: Discrete 0.067s (15.000 fps) 
> Interval: Discrete 0.100s (10.000 fps) 
> Interval: Discrete 0.200s (5.000 fps) 
> Size: Discrete 320x240 
> Interval: Discrete 0.033s (30.000 fps) 
> Interval: Discrete 0.050s (20.000 fps) 
> Interval: Discrete 0.067s (15.000 fps) 
> Interval: Discrete 0.100s (10.000 fps) 
> Interval: Discrete 0.200s (5.000 fps) 
>
> On Sat, Mar 12, 2016 at 5:55 PM, @lex <alex....@gmail.com <javascript:>> 
> wrote: 
> > Inspired by so many good arguments on USB uvc cameras i decided to test 
> one, 
> > a 720P HD used in ODROID, so you can take a look and see how good it is 
> for 
> > Orange Pi PC (Allwinner H3) and decide if  having Encode/Decode by HW 
> worth 
> > the effort or we throw in the towel, it is up to you. 
> > 
> > This is simple test, done with Orange Pi PC, with a tuned 3.4.39 kernel 
> and 
> > with ssvb fex (TKaiser advice) to solve the so known temperature issues 
> this 
> > board faces when running at high speed. 
> > 
> > The uvc camera is ODROID 720 HD: 
> > [  196.199875] ehci_irq: highspeed device connect 
> > [  196.460139] usb 4-1: new high-speed USB device number 2 using 
> sunxi-ehci 
> > [  196.890710] 2:3:1: cannot get freq at ep 0x84 
> > [  196.892434] usbcore: registered new interface driver snd-usb-audio 
> > [  196.923986] uvcvideo: Found UVC 1.00 device USB 2.0 Camera 
> (1b71:0056) 
> > [  196.938300] is_otg_flag: 0x0, 
> > [  196.938479] usbcore: registered new interface driver uvcvideo 
> > [  196.938489] USB Video Class driver (v1.1.1) 
> > [  196.976118] 2:3:1: cannot get freq at ep 0x84 
> > 
> > 
> > As Jon said, you don't need to do anything, just plug it in and start 
> using 
> > the UVC camera compliant. No need to worry about drivers, etc.. 
> > This camera has MPJEG mode and YUV mode: 
> > ioctl: VIDIOC_ENUM_FMT 
> > Index       : 0 
> > Type        : Video Capture 
> > Pixel Format: 'MJPG' (compressed) 
> > Name        : MJPEG 
> > Size: Discrete 1280x720 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 640x480 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 640x360 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 544x288 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 432x240 
> > Interval: Discrete 0.017s (60.000 fps) 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 352x288 
> > Interval: Discrete 0.017s (60.000 fps) 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 320x240 
> > Interval: Discrete 0.017s (60.000 fps) 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 752x416 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 800x448 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 800x600 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 864x480 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 960x544 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 960x720 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 1024x576 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 1184x656 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > 
> > Index       : 1 
> > Type        : Video Capture 
> > Pixel Format: 'YUYV' 
> > Name        : YUV 4:2:2 (YUYV) 
> > Size: Discrete 640x480 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 640x360 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 544x288 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 432x240 
> > Interval: Discrete 0.017s (60.000 fps) 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 352x288 
> > Interval: Discrete 0.017s (60.000 fps) 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 320x240 
> > Interval: Discrete 0.017s (60.000 fps) 
> > Interval: Discrete 0.033s (30.000 fps) 
> > Interval: Discrete 0.040s (25.000 fps) 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 752x416 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 800x448 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 864x480 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 800x600 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 960x544 
> > Interval: Discrete 0.050s (20.000 fps) 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 1024x576 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 960x720 
> > Interval: Discrete 0.067s (15.000 fps) 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 1184x656 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > Size: Discrete 1280x720 
> > Interval: Discrete 0.100s (10.000 fps) 
> > Interval: Discrete 0.200s (5.000 fps) 
> > 
> > 
> > So i tested it with GuvcView, in YUV mode and MJPEG mode. 
> > 
> > I came to the following conclusion (but you can have your own): 
> > * CPU intensive usage, even for compressed MJPEG, this is necessary 
> because 
> > GuvcView needs to decompress MJPEG and render it on screen, so decoding 
> is 
> > by software. 
> > * Raised CPU temp. ~80C and all sort of issues that come with it. 
> > * UVC cameras will have good use for streaming MJPEG or H264, without 
> > rendering it to screen. Forget about Cheese, GuvcView and apps. Maybe it 
> is 
> > good for motion and OpenCV, you have to find out. 
> > 
> > Finally, have a look to image quality here: 
> > 
> https://plus.google.com/u/0/photos/photo/113203245923875824895/6261286144173300082
>  
> > 
> https://plus.google.com/u/0/photos/photo/113203245923875824895/6261288269096376978
>  
> > 
> https://plus.google.com/u/0/photos/photo/113203245923875824895/6261280022112589490
>  
> > 
> > And you can compare it to the Cheap Orange Pi Camera here: 
> > 
> https://plus.google.com/u/0/photos/photo/113203245923875824895/6248912774577238658
>  
> > 
> https://plus.google.com/u/0/photos/photo/113203245923875824895/6248917191401732482
>  
> > 
> > And Rosimildo, Orange PI PC has built in Microphone and you can grab 
> sound 
> > from it, again in order to sync the sound with image you need HW 
> encoding. 
> > 
> > This is my 2 cents. 
> > 
> > @lex 
> > 
> > 
> > 
> > 
> > On Saturday, March 12, 2016 at 5:36:08 PM UTC-3, Jon Smirl wrote: 
> >> 
> >> On Sat, Mar 12, 2016 at 3:01 PM, Rosimildo DaSilva <rosi...@gmail.com> 
> >> wrote: 
> >> > Jon, 
> >> > Thanks for yours always informative posts. 
> >> > 
> >> > I think someone should come up with a HDMI ==> CSI (MIPI ) interface 
> >> > board 
> >> > for these OrangePI PCs... it would be owesome...., instead of these 
> >> > gspca 
> >> > crap... they have now. 
> >> 
> >> newer Allwinner chips such as the A64 support MIPI displays. For 
> >> example the Pine64 uses the A64, but I don't know if they exposed the 
> >> DSI interface. 
> >> 
> >> > 
> >> > 
> >> > Jon, maybe you can help me... I am looking for an 720p or 1080p 
> camera, 
> >> > H264 
> >> > compressed video,  and with Wired ( and WI-FI a plus ), with AUDIO 
> >> > input... 
> >> > something that has also AUDIO as input and not just video. 
> >> > If you know any cameras with that capability, and in the US$50 range, 
> >> > let me 
> >> > know. 
> >> 
> >> Look for little surveillance camera like this one: 
> >> 
> >> 
> http://www.amazon.com/Vanxse%C2%AE-Pinhole-Security-Network-Surveillance/dp/B00QRM9AFG/ref=sr_1_1
>  
> >> They contain those standardized, square camera boards I linked to 
> earlier. 
> >> You need to access these over Ethernet. Internally most run Linux on an 
> >> ARM9. 
> >> 
> >> The Sonix chips support audio input. Don't know if that taobao board 
> >> exposes it. 
> >> 
> >> Here is C920 for $60 shipped. 
> >> http://www.wirelessoemshop.com/logitech-hd-pro-webcam-c920/ 
> >> It was at Amazon last week for $50 shipped but it is sold out now. 
> >> 
> >> If you drop h.264 and just use MJPG you can find USB cameras for $10. 
> >> 
> >> Look for deals on web cams. All web cams stream video and audio. 
> >> 
> >> > 
> >> > THanks, R 
> >> > 
> >> > 
> >> > 
> >> > 
> >> > On Saturday, March 12, 2016 at 1:09:32 PM UTC-6, Jon Smirl wrote: 
> >> >> 
> >> >> gspca is around 10 years old and it pre-dates UVC. 
> >> >> 
> >> >> The 291 image chip can take higher resolution stills, but mine only 
> >> >> has a 720P sensor on it. 
> >> >> The 292 image chip has similar performance at 1080P. 
> >> >> 
> >> >> I have wasted far too much time trying to get Allwinner cameras 
> >> >> working properly and I won't touch them any more. 
> >> >> 
> >> >> Our current product uses a more advanced camera similar to this one: 
> >> >> 
> >> >> 
> >> >> 
> http://world.taobao.com/item/521668890252.htm?spm=a312a.7700714.0.0.ekoWOi#detail
>  
> >> >> But these boards are too hard to interface with for casual use. The 
> >> >> main advantage to these chips is that they can simultaneously 
> provide 
> >> >> three versions of the h.264 stream at different resolutions. The 
> Sonix 
> >> >> chips are single stream but far easier to use. 
> >> >> 
> >> >> This is cheapest, decent h.264 720P camera I camera I am aware of - 
> >> >> $6.12 
> >> >> 
> >> >> 
> >> >> 
> http://world.taobao.com/item/527850462938.htm?spm=a312a.7700714.0.0.d9CEzd#detail
>  
> >> >> You would need to attach to it using Ethernet, USB access requires 
> >> >> custom firmware. 
> >> >> 
> >> >> Here are all of the modes supported by the 291 chips. 
> >> >> Note that it supports 720P30 h.264 
> >> >> 
> >> >> this first mode is uncompressed, 480Mb USB limits it to 720P5 
> >> >> jonsmirl@terra:/work/gm/linux-3.3-fa$ v4l2-ctl -d /dev/video1 
> >> >> --list-formats-ext 
> >> >> ioctl: VIDIOC_ENUM_FMT 
> >> >> Index       : 0 
> >> >> Type        : Video Capture 
> >> >> Pixel Format: 'YUYV' 
> >> >> Name        : YUYV 4:2:2 
> >> >> Size: Discrete 1280x720 
> >> >> Interval: Discrete 0.200s (5.000 fps) 
> >> >> Size: Discrete 640x480 
> >> >> Interval: Discrete 0.033s (30.000 fps) 
> >> >> Interval: Discrete 0.050s (20.000 fps) 
> >> >> Interval: Discrete 0.067s (15.000 fps) 
> >> >> Interval: Discrete 0.100s (10.000 fps) 
> >> >> Interval: Discrete 0.200s (5.000 fps) 
> >> >> Size: Discrete 320x240 
> >> >> Interval: Discrete 0.033s (30.000 fps) 
> >> >> Interval: Discrete 0.050s (20.000 fps) 
> >> >> Interval: Discrete 0.067s (15.000 fps) 
> >> >> Interval: Discrete 0.100s (10.000 fps) 
> >> >> Interval: Discrete 0.200s (5.000 fps) 
> >> >> 
> >> >> Both MJPG and h.264 work at 720P30. 
> >> >> Index       : 1 
> >> >> Type        : Video Capture 
> >> >> Pixel Format: 'MJPG' (compressed) 
> >> >> Name        : Motion-JPEG 
> >> >> Size: Discrete 1280x720 
> >> >> Interval: Discrete 0.033s (30.000 fps) 
> >> >> Interval: Discrete 0.050s (20.000 fps) 
> >> >> Interval: Discrete 0.067s (15.000 fps) 
> >> >> Interval: Discrete 0.100s (10.000 fps) 
> >> >> Interval: Discrete 0.200s (5.000 fps) 
> >> >> Size: Discrete 640x480 
> >> >> Interval: Discrete 0.033s (30.000 fps) 
> >> >> Interval: Discrete 0.050s (20.000 fps) 
> >> >> Interval: Discrete 0.067s (15.000 fps) 
> >> >> Interval: Discrete 0.100s (10.000 fps) 
> >> >> Interval: Discrete 0.200s (5.000 fps) 
> >> >> Size: Discrete 320x240 
> >> >> Interval: Discrete 0.033s (30.000 fps) 
> >> >> Interval: Discrete 0.050s (20.000 fps) 
> >> >> Interval: Discrete 0.067s (15.000 fps) 
> >> >> Interval: Discrete 0.100s (10.000 fps) 
> >> >> Interval: Discrete 0.200s (5.000 fps) 
> >> >> 
> >> >> jonsmirl@terra:/work/gm/linux-3.3-fa$ v4l2-ctl -d /dev/video2 
> >> >> --list-formats-ext 
> >> >> ioctl: VIDIOC_ENUM_FMT 
> >> >> Index       : 0 
> >> >> Type        : Video Capture 
> >> >> Pixel Format: 'H264' (compressed) 
> >> >> Name        : H.264 
> >> >> Size: Discrete 1280x720 
> >> >> Interval: Discrete 0.033s (30.000 fps) 
> >> >> Interval: Discrete 0.050s (20.000 fps) 
> >> >> Interval: Discrete 0.067s (15.000 fps) 
> >> >> Interval: Discrete 0.100s (10.000 fps) 
> >> >> Interval: Discrete 0.200s (5.000 fps) 
> >> >> Size: Discrete 640x480 
> >> >> Interval: Discrete 0.033s (30.000 fps) 
> >> >> Interval: Discrete 0.050s (20.000 fps) 
> >> >> Interval: Discrete 0.067s (15.000 fps) 
> >> >> Interval: Discrete 0.100s (10.000 fps) 
> >> >> Interval: Discrete 0.200s (5.000 fps) 
> >> >> Size: Discrete 320x240 
> >> >> Interval: Discrete 0.033s (30.000 fps) 
> >> >> Interval: Discrete 0.050s (20.000 fps) 
> >> >> Interval: Discrete 0.067s (15.000 fps) 
> >> >> Interval: Discrete 0.100s (10.000 fps) 
> >> >> Interval: Discrete 0.200s (5.000 fps) 
> >> >> 
> >> >> 
> >> >> 
> >> >> On Sat, Mar 12, 2016 at 8:49 AM, @lex <alex....@gmail.com> wrote: 
> >> >> > Thanks Jon. 
> >> >> > 
> >> >> > I have some thoughts on this proposed hardware solution: 
> >> >> > 
> >> >> > * This camera will not be recognized as uvc usb device, unless you 
> >> >> > add 
> >> >> > it to 
> >> >> > the device list, no big deal i think. 
> >> >> > Your kernel is 3.3 but i think you or someone else already added 
> it 
> >> >> > to 
> >> >> > uvc 
> >> >> > device list. (i may be wrong), 
> >> >> > 
> >> >> > * Orange PI ONE has only one USB, so you will need to access the 
> >> >> > device 
> >> >> > remotely, 
> >> >> > 
> >> >> > * Grabbing the video can be done with V4l2 as usual, 
> >> >> > 
> >> >> > * I tested here a usb Labtec gspca camera which is VGA JPEG 30 
> FPS, 
> >> >> > and 
> >> >> > its 
> >> >> > performance is about ~9 fps, that means USB camera tend to perform 
> >> >> > below 
> >> >> > specifications when not in Desktop, may be the usb bandwidth is a 
> >> >> > constraint, 
> >> >> > 
> >> >> > * Original OPI camera is $ 5.90 while the one you pointed is $ 
> 8.52 
> >> >> > plus 
> >> >> > some usb cable and may need some wiring/soldering, 
> >> >> > 
> >> >> > * Logitec is out of question, i cannot get one for less than $ 
> >> >> > 100.00. 
> >> >> > And 
> >> >> > considering spending $ 10.00 / 15.00 on a sbc board and another $ 
> >> >> > 100.00 
> >> >> > is 
> >> >> > only viable if you don't want to mess with software. 
> >> >> > 
> >> >> > * No tinkering, no learning and no solution for the upcoming 
> >> >> > Allwinner 
> >> >> > new 
> >> >> > devices going this route. 
> >> >> > 
> >> >> > So, guys lets's get back to work, the fight is not over yet. 
> >> >> > 
> >> >> > @lex 
> >> >> > 
> >> >> > 
> >> >> > On Friday, March 11, 2016 at 8:49:42 PM UTC-3, Jon Smirl wrote: 
> >> >> >> 
> >> >> >> [33718.237465] usb 2-5.1: new high-speed USB device number 12 
> using 
> >> >> >> ehci-pci 
> >> >> >> [33718.782014] usb 2-5.1: new high-speed USB device number 13 
> using 
> >> >> >> ehci-pci 
> >> >> >> [33719.121687] usb 2-5.1: New USB device found, idVendor=18e3, 
> >> >> >> idProduct=5100 
> >> >> >> [33719.121692] usb 2-5.1: New USB device strings: Mfr=2, 
> Product=1, 
> >> >> >> SerialNumber=3 
> >> >> >> [33719.121696] usb 2-5.1: Product: USB 2.0 Camera 
> >> >> >> [33719.121698] usb 2-5.1: Manufacturer: Sonix Technology Co., 
> Ltd. 
> >> >> >> [33719.121701] usb 2-5.1: SerialNumber: SN0001 
> >> >> >> [33719.122631] uvcvideo: Found UVC 1.00 device USB 2.0 Camera 
> >> >> >> (18e3:5100) 
> >> >> >> [33719.146885] uvcvideo: Unable to create debugfs 2-13 directory. 
> >> >> >> [33719.147213] input: USB 2.0 Camera as 
> >> >> >> 
> >> >> >> 
> /devices/pci0000:00/0000:00:1d.7/usb2/2-5/2-5.1/2-5.1:1.0/input/input15 
> >> >> >> jonsmirl@terra:/work/gm/linux-3.3-fa$ 
> >> >> >> 
> >> >> >> On Fri, Mar 11, 2016 at 6:26 PM, @lex <alex....@gmail.com> 
> wrote: 
> >> >> >> > Can you please tell me the idVendor and idProduct for this 
> camera? 
> >> >> >> > 
> >> >> >> > 
> >> >> >> > On Friday, March 11, 2016 at 8:08:21 PM UTC-3, @lex wrote: 
> >> >> >> >> 
> >> >> >> >> Err... That was new to me. Without researching how do you grab 
> >> >> >> >> video 
> >> >> >> >> from 
> >> >> >> >> this generic driver how good this camera performs? 
> >> >> >> >> 
> >> >> >> >> On Friday, March 11, 2016 at 7:52:17 PM UTC-3, Jon Smirl 
> wrote: 
> >> >> >> >>> 
> >> >> >> >>> On Fri, Mar 11, 2016 at 4:42 PM, @lex <alex....@gmail.com> 
> >> >> >> >>> wrote: 
> >> >> >> >>> > Seems to be a nice camera, but that depends on your kernel 
> >> >> >> >>> > version. 
> >> >> >> >>> > There is no support for SN9C291 OV9712 on kernel v3.4.39. 
> >> >> >> >>> > And no support on odroid-3.8.30 on my U3 also. 
> >> >> >> >>> > Don't know about armbian legacy kernel version, but i don't 
> >> >> >> >>> > expect 
> >> >> >> >>> > there 
> >> >> >> >>> > will be support also. 
> >> >> >> >>> 
> >> >> >> >>> The camera does not need a specific driver, it uses the 
> generic 
> >> >> >> >>> USB 
> >> >> >> >>> Video driver. 
> >> >> >> >>> It is like a USB mouse or keyboard, you don't need a specific 
> >> >> >> >>> driver 
> >> >> >> >>> for every different one. 
> >> >> >> >>> 
> >> >> >> >>> Drivers/Multimedia/Media USB/USB Video Class (UVC) 
> >> >> >> >>> 
> >> >> >> >>> Kconfig USB_VIDEO_CLASS 
> >> >> >> >>> 
> >> >> >> >>> This support dates way back to around 2.4 or so. Almost every 
> >> >> >> >>> desktop 
> >> >> >> >>> web cam works using this driver. 
> >> >> >> >>> 
> >> >> >> >>> > 
> >> >> >> >>> > On Friday, March 11, 2016 at 4:41:59 PM UTC-3, Jon Smirl 
> >> >> >> >>> > wrote: 
> >> >> >> >>> >> 
> >> >> >> >>> >> On Fri, Mar 11, 2016 at 2:18 PM, Manuel Braga 
> >> >> >> >>> >> <mul....@gmail.com> 
> >> >> >> >>> >> wrote: 
> >> >> >> >>> >> > On Fri, 11 Mar 2016 05:53:36 -0800 (PST) Rosimildo 
> DaSilva 
> >> >> >> >>> >> > <rosi...@gmail.com> wrote: 
> >> >> >> >>> >> >> 
> >> >> >> >>> >> >> I did not mention, but I founf two issues withe blobs: 
> >> >> >> >>> >> >> 
> >> >> >> >>> >> >> a) Motion Detection causes segmentation fault, whenever 
> >> >> >> >>> >> >> enabled. 
> >> >> >> >>> >> >> b) FFMPEG complains that timestamp ( PTS/DTS ) are 
> missing 
> >> >> >> >>> >> >> on 
> >> >> >> >>> >> >> the 
> >> >> >> >>> >> >> H264 stream generated by the encoder... I've tried many 
> >> >> >> >>> >> >> things ( 
> >> >> >> >>> >> >> code 
> >> >> >> >>> >> >> is commented out ), but nothing worked. 
> >> >> >> >>> >> > 
> >> >> >> >>> >> > There is another issue, that i believe to be important. 
> >> >> >> >>> >> > But for whatever reasons, it has to be constantly 
> >> >> >> >>> >> > remembered 
> >> >> >> >>> >> > about 
> >> >> >> >>> >> > its 
> >> >> >> >>> >> > existence. 
> >> >> >> >>> >> > 
> >> >> >> >>> >> > And that issue is: 
> >> >> >> >>> >> > 
> >> >> >> >>> >> >   c) The proprietaries binary blobs don't have a clear 
> >> >> >> >>> >> > license 
> >> >> >> >>> >> > attached. 
> >> >> >> >>> >> > 
> >> >> >> >>> >> > And in the copyright law, any "things" with "no license" 
> by 
> >> >> >> >>> >> > default 
> >> >> >> >>> >> > fell 
> >> >> >> >>> >> > in the "all rights reserved". 
> >> >> >> >>> >> 
> >> >> >> >>> >> I gave up fighting with Allwinner's encoder long ago. It 
> is 
> >> >> >> >>> >> far 
> >> >> >> >>> >> easier 
> >> >> >> >>> >> to just plug in a USB based h.264 camera. You can easily 
> buy 
> >> >> >> >>> >> ones 
> >> >> >> >>> >> from 
> >> >> >> >>> >> Logitech for $50. 
> >> >> >> >>> >> 
> >> >> >> >>> >> If you want it at the hardware level, look at chips from 
> >> >> >> >>> >> Sonix. 
> >> >> >> >>> >> Here 
> >> >> >> >>> >> is a board based on the SN9C291 for $8.50. The bare chips 
> are 
> >> >> >> >>> >> about 
> >> >> >> >>> >> $4. 
> >> >> >> >>> >> 
> >> >> >> >>> >> 
> >> >> >> >>> >> 
> >> >> >> >>> >> 
> >> >> >> >>> >> 
> >> >> >> >>> >> 
> https://world.taobao.com/item/40004211822.htm?spm=a312a.7700714.0.0.zGiipg#detail
>  
> >> >> >> >>> >> 
> >> >> >> >>> >> Note that this PCBA is the same price as most bare image 
> >> >> >> >>> >> sensors 
> >> >> >> >>> >> mounted on a flex cable. Plus I find it much easier to 
> wire 
> >> >> >> >>> >> things 
> >> >> >> >>> >> with a simple USB cable instead of an FFC. 
> >> >> >> >>> >> 
> >> >> >> >>> >> The Sonix chips will appear as USB UVC devices when 
> plugged 
> >> >> >> >>> >> into 
> >> >> >> >>> >> Linux 
> >> >> >> >>> >> and they will need no special drivers. They also work on 
> >> >> >> >>> >> Windows. 
> >> >> >> >>> >> 
> >> >> >> >>> >> 
> >> >> >> >>> >> 
> >> >> >> >>> >> > 
> >> >> >> >>> >> > -- 
> >> >> >> >>> >> > Manuel Braga 
> >> >> >> >>> >> > 
> >> >> >> >>> >> > -- 
> >> >> >> >>> >> > You received this message because you are subscribed to 
> the 
> >> >> >> >>> >> > Google 
> >> >> >> >>> >> > Groups "linux-sunxi" group. 
> >> >> >> >>> >> > To unsubscribe from this group and stop receiving emails 
> >> >> >> >>> >> > from 
> >> >> >> >>> >> > it, 
> >> >> >> >>> >> > send 
> >> >> >> >>> >> > an email to linux-sunxi...@googlegroups.com. 
> >> >> >> >>> >> > For more options, visit 
> https://groups.google.com/d/optout. 
> >> >> >> >>> >> 
> >> >> >> >>> >> 
> >> >> >> >>> >> 
> >> >> >> >>> >> -- 
> >> >> >> >>> >> Jon Smirl 
> >> >> >> >>> >> jons...@gmail.com 
> >> >> >> >>> > 
> >> >> >> >>> > -- 
> >> >> >> >>> > You received this message because you are subscribed to the 
> >> >> >> >>> > Google 
> >> >> >> >>> > Groups 
> >> >> >> >>> > "linux-sunxi" group. 
> >> >> >> >>> > To unsubscribe from this group and stop receiving emails 
> from 
> >> >> >> >>> > it, 
> >> >> >> >>> > send 
> >> >> >> >>> > an 
> >> >> >> >>> > email to linux-sunxi...@googlegroups.com. 
> >> >> >> >>> > For more options, visit https://groups.google.com/d/optout. 
>
> >> >> >> >>> 
> >> >> >> >>> 
> >> >> >> >>> 
> >> >> >> >>> -- 
> >> >> >> >>> Jon Smirl 
> >> >> >> >>> jons...@gmail.com 
> >> >> >> > 
> >> >> >> > -- 
> >> >> >> > You received this message because you are subscribed to the 
> Google 
> >> >> >> > Groups 
> >> >> >> > "linux-sunxi" group. 
> >> >> >> > To unsubscribe from this group and stop receiving emails from 
> it, 
> >> >> >> > send 
> >> >> >> > an 
> >> >> >> > email to linux-sunxi...@googlegroups.com. 
> >> >> >> > For more options, visit https://groups.google.com/d/optout. 
> >> >> >> 
> >> >> >> 
> >> >> >> 
> >> >> >> -- 
> >> >> >> Jon Smirl 
> >> >> >> jons...@gmail.com 
> >> >> > 
> >> >> > -- 
> >> >> > You received this message because you are subscribed to the Google 
> >> >> > Groups 
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> >> >> > send 
> >> >> > an 
> >> >> > email to linux-sunxi...@googlegroups.com. 
> >> >> > For more options, visit https://groups.google.com/d/optout. 
> >> >> 
> >> >> 
> >> >> 
> >> >> -- 
> >> >> Jon Smirl 
> >> >> jons...@gmail.com 
> >> > 
> >> > -- 
> >> > You received this message because you are subscribed to the Google 
> >> > Groups 
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> >> > email to linux-sunxi...@googlegroups.com. 
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> >> 
> >> 
> >> 
> >> -- 
> >> Jon Smirl 
> >> jons...@gmail.com 
> > 
> > -- 
> > You received this message because you are subscribed to the Google 
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>
>
>
> -- 
> Jon Smirl 
> jons...@gmail.com <javascript:> 
>

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