Yuv format not available

[costeacostin]

Hello,

I tried to take out the frames from the camera in YUV format but it doesnt work, I see only random pixels and after this I tried to convert by myself the the frames from jpeg to yuv but still no success.
Do you have any idea about how I can do this in a clean manner?

Thanks,
Costin

[Peter-St]

Hello costeacostin,

First tell how big the frames are you got from the camera. (How many bytes)

Next you need to know, how big a frame of your camera should be. If you have a linux Pc, you can post the output of:
' lsusb -v -d : ', to know your camera specifications.

Under the uncompressed video formats, there exists more than one, so you have to know the exact uncompressed format of your camera.

If the frame has not the right size, you may have to change some of the camera values. Perhaps you can post all of the camera values you use with your camera.

So far,

Peter

[costeacostin]

Hello,

The output of lsusb:
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
idVendor 0x1d6b Linux Foundation
idProduct 0x0001 1.1 root hub
bcdDevice 5.00
iManufacturer 3 Linux 5.0.0-23-generic uhci_hcd
iProduct 2 UHCI Host Controller
iSerial 1 0000:02:00.0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0002 1x 2 bytes
bInterval 255
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 2
wHubCharacteristic 0x000a
No power switching (usb 1.0)
Per-port overcurrent protection
bPwrOn2PwrGood 1 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0103 power enable connect
Port 2: 0000.0103 power enable connect
Device Status: 0x0001
Self Powered

What should I use from here?

BR,
Costin

[costeacostin]

ioctl: VIDIOC_ENUM_FMT
Index : 0
Type : Video Capture
Pixel Format: 'YUYV'
Name : YUYV 4:2:2
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 352x288
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 0.033s (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 176x144
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 160x120
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 2592x1944
Interval: Discrete 0.500s (2.000 fps)
Size: Discrete 1600x1200
Interval: Discrete 0.167s (6.000 fps)
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 1920x1080
Interval: Discrete 0.167s (6.000 fps)
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 1280x720
Interval: Discrete 0.077s (13.000 fps)
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 1024x768
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 0.040s (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: 'MJPG' (compressed)
Name        : Motion-JPEG
	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 352x288
		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 0.033s (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 176x144
		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 160x120
		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 2592x1944
		Interval: Discrete 0.067s (15.000 fps)
		Interval: Discrete 0.100s (10.000 fps)
		Interval: Discrete 0.200s (5.000 fps)
	Size: Discrete 1600x1200
		Interval: Discrete 0.067s (15.000 fps)
		Interval: Discrete 0.100s (10.000 fps)
		Interval: Discrete 0.200s (5.000 fps)
	Size: Discrete 1920x1080
		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 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 1024x768
		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)

[Peter-St]

Ok,

does the stream work with MJPEG Format?
Do you see here the Pictures?

What exactly is the length of the frames with Yuv?
From device to device there could be differences receiveing Mjpeg or Yuv Frames.

The output under linux should be longer...
Was this the whole output? --> Drivers and permissions granted under Linux?

So far,

Peter

[costeacostin]

Hi,

Yes, I can see images in MJPEG format in android without problems. The framerate is pretty slow, I could't identify the magic formula of parameters in order to make it faster.
My problem is that I really need the frames as YUV for another protocol and I found some code that convert JPEG in YUV but the output are just random pixels (I don't know which format of RGB is the picture).
If you have time we can have a chat or call, my e-mail is costea.costin96@gmail.com

I really like this project,
Costin

[Peter-St]

Ok,

then lets try to get some yuv frames from your Camera with the Android App:

I think for Mjpeg Frames you used the "Set Up With Uvc Values" Button. Normally this Button should work for the YUV Frames too.

First 3 Entries could be the same like the ones from Mjpeg, because they will matter later during debugging the camera. (Maxpacketsize, PacketsPerRequest, ActiveUrbs)

The 4. entry is the frame Format: Please post the automatic detected Formats you can choose here, because the two fromats should be YUYV and Mjpeg.
For the last 2 values you choose the lowest resolution (160x120) and the highest Frame Interval (2000000). (This is because you receive here the smallest frames from your camera with the lowest framerate)

The uncompressed Frames you receive here should have a size of 38400 bytes!

All frames you get from your cam with a different size are Error frames! (Only fits for 160x120 framesize)

For debugging your camera now click the "-Controltransfer-Testrun-" Button in the App and Run a Testrun with 1 Frame.
The App now prints the frame size in bytes from the first frame received from your Camera. --> please post the size of this frame!
If this frame is already 38400 bytes long you should be able to lunch the stream over the main menu.

Please post your results from the steps above.

Sadly I have less time for discussing the issue via a chat. Also my notebook is in repair for about a month and I'm not getting any response from the repair service if they can fix my notebook or not...

So far,

Peter