uvc-camera rtsp

[張為超]

Hello ,

I'm trying to use rtsp to stream a uvc camera. After I finish the connection(using fast boot module) and setting(using voxl-uvc-server and streamer), i get a stream from my computer like following:

Here's my voxl-streamer.conf about uvc:

"uvc-generic": {              
        "input": {                
            "interface": "mpa",   
            "mpa-camera": "uvc" },
        "output": {            
            "stream": {               
                "rotation": 0, 
                "width": 640,         
                "height": 480,        
                "decimator": 2,       
                "bitrate": 1000000 } }
    }

My camera is logitech C930c and Luminous C30 and both have similar image.

Any suggestion is welcome, big thanks : )

[Eric Katzfey]

@張為超 This looks like a mismatch in video format. There are some helpful debugging tips here: https://docs.modalai.com/voxl-uvc-server/#helpful-tips. Can you show the output when you run voxl-uvc-server -s and also voxl-uvc-server -d -v?

[張為超]

Hello,
Thanks for answering me.

here's output for voxl-uvc-server -s :

voxl:~$ voxl-uvc-server -s
*** START DEVICE LIST ***

Found device 1

Got device descriptor for 046d:0891 E1127E0E

Found device 046d:0891

DEVICE CONFIGURATION (046d:0891/E1127E0E) ---
Status: idle
VideoControl:
	bcdUVC: 0x0100
VideoStreaming(1):
	bEndpointAddress: 129
	Formats:
	UncompressedFormat(1)
		  bits per pixel: 16
		  GUID: 5955593200001000800000aa00389b71 (YUY2)
		  default frame: 1
		  aspect ratio: 0x0
		  interlace flags: 00
		  copy protect: 00
			FrameDescriptor(1)
			  capabilities: 00
			  size: 640x480
			  bit rate: 24576000-147456000
			  max frame size: 614400
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(2)
			  capabilities: 00
			  size: 160x120
			  bit rate: 1536000-9216000
			  max frame size: 38400
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(3)
			  capabilities: 00
			  size: 176x144
			  bit rate: 2027520-12165120
			  max frame size: 50688
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(4)
			  capabilities: 00
			  size: 320x180
			  bit rate: 4608000-27648000
			  max frame size: 115200
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(5)
			  capabilities: 00
			  size: 320x240
			  bit rate: 6144000-36864000
			  max frame size: 153600
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(6)
			  capabilities: 00
			  size: 352x288
			  bit rate: 8110080-48660480
			  max frame size: 202752
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(7)
			  capabilities: 00
			  size: 424x240
			  bit rate: 8140800-48844800
			  max frame size: 203520
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(8)
			  capabilities: 00
			  size: 480x270
			  bit rate: 10368000-62208000
			  max frame size: 259200
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(9)
			  capabilities: 00
			  size: 640x360
			  bit rate: 18432000-110592000
			  max frame size: 460800
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(10)
			  capabilities: 00
			  size: 800x448
			  bit rate: 28672000-172032000
			  max frame size: 716800
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(11)
			  capabilities: 00
			  size: 800x600
			  bit rate: 38400000-184320000
			  max frame size: 960000
			  default interval: 1/24
			  interval[0]: 1/24
			  interval[1]: 1/20
			  interval[2]: 1/15
			  interval[3]: 1/10
			  interval[4]: 1/7
			  interval[5]: 1/5
			FrameDescriptor(12)
			  capabilities: 00
			  size: 848x480
			  bit rate: 32563200-195379200
			  max frame size: 814080
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(13)
			  capabilities: 00
			  size: 960x540
			  bit rate: 41472000-124416000
			  max frame size: 1036800
			  default interval: 1/15
			  interval[0]: 1/15
			  interval[1]: 1/10
			  interval[2]: 1/7
			  interval[3]: 1/5
			FrameDescriptor(14)
			  capabilities: 00
			  size: 1024x576
			  bit rate: 47185920-141557760
			  max frame size: 1179648
			  default interval: 1/15
			  interval[0]: 1/15
			  interval[1]: 1/10
			  interval[2]: 1/7
			  interval[3]: 1/5
			FrameDescriptor(15)
			  capabilities: 00
			  size: 1280x720
			  bit rate: 73728000-147456000
			  max frame size: 1843200
			  default interval: 1/10
			  interval[0]: 1/10
			  interval[1]: 1/7
			  interval[2]: 1/5
			FrameDescriptor(16)
			  capabilities: 00
			  size: 1600x896
			  bit rate: 114688000-172032000
			  max frame size: 2867200
			  default interval: 1/7
			  interval[0]: 1/7
			  interval[1]: 1/5
			FrameDescriptor(17)
			  capabilities: 00
			  size: 1920x1080
			  bit rate: 165888000-165888000
			  max frame size: 4147200
			  default interval: 1/5
			  interval[0]: 1/5
			FrameDescriptor(18)
			  capabilities: 00
			  size: 2304x1296
			  bit rate: 238878720-238878720
			  max frame size: 5971968
			  default interval: 1/2
			  interval[0]: 1/2
			FrameDescriptor(19)
			  capabilities: 00
			  size: 2304x1536
			  bit rate: 283115520-283115520
			  max frame size: 7077888
			  default interval: 1/2
			  interval[0]: 1/2
	MJPEGFormat(2)
		  bits per pixel: 0
		  GUID: 4d4a5047000000000000000000000000 (MJPG)
		  default frame: 1
		  aspect ratio: 0x0
		  interlace flags: 00
		  copy protect: 00
			FrameDescriptor(1)
			  capabilities: 00
			  size: 640x480
			  bit rate: 24576000-147456000
			  max frame size: 614400
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(2)
			  capabilities: 00
			  size: 160x120
			  bit rate: 1536000-9216000
			  max frame size: 38400
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(3)
			  capabilities: 00
			  size: 176x144
			  bit rate: 2027520-12165120
			  max frame size: 50688
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(4)
			  capabilities: 00
			  size: 320x180
			  bit rate: 4608000-27648000
			  max frame size: 115200
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(5)
			  capabilities: 00
			  size: 320x240
			  bit rate: 6144000-36864000
			  max frame size: 153600
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(6)
			  capabilities: 00
			  size: 352x288
			  bit rate: 8110080-48660480
			  max frame size: 202752
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(7)
			  capabilities: 00
			  size: 424x240
			  bit rate: 8140800-48844800
			  max frame size: 203520
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(8)
			  capabilities: 00
			  size: 480x270
			  bit rate: 10368000-62208000
			  max frame size: 259200
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(9)
			  capabilities: 00
			  size: 640x360
			  bit rate: 18432000-110592000
			  max frame size: 460800
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(10)
			  capabilities: 00
			  size: 800x448
			  bit rate: 28672000-172032000
			  max frame size: 716800
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(11)
			  capabilities: 00
			  size: 800x600
			  bit rate: 38400000-230400000
			  max frame size: 960000
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(12)
			  capabilities: 00
			  size: 848x480
			  bit rate: 32563200-195379200
			  max frame size: 814080
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(13)
			  capabilities: 00
			  size: 960x540
			  bit rate: 41472000-248832000
			  max frame size: 1036800
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(14)
			  capabilities: 00
			  size: 1024x576
			  bit rate: 47185920-283115520
			  max frame size: 1179648
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(15)
			  capabilities: 00
			  size: 1280x720
			  bit rate: 73728000-442368000
			  max frame size: 1843200
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(16)
			  capabilities: 00
			  size: 1600x896
			  bit rate: 114688000-688128000
			  max frame size: 2867200
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
			FrameDescriptor(17)
			  capabilities: 00
			  size: 1920x1080
			  bit rate: 165888000-995328000
			  max frame size: 4147200
			  default interval: 1/30
			  interval[0]: 1/30
			  interval[1]: 1/24
			  interval[2]: 1/20
			  interval[3]: 1/15
			  interval[4]: 1/10
			  interval[5]: 1/7
			  interval[6]: 1/5
END DEVICE CONFIGURATION

*** END DEVICE LIST ***

voxl-uvc-server -d -v :

voxl:~$ voxl-uvc-server -d -v 046d
Enabling debug messages
voxl-uvc-server starting
Vendor ID 0x046d chosen
Image resolution 640x480, 30 fps chosen
UVC initialized
Device 046d:0000 found
Device opened
uvc_get_stream_ctrl_format_size succeeded for format 0
Streaming starting
Got frame callback! frame_format = 3, width = 640, height = 480, length = 614400, ptr = (nil)
 * got image 30
 * got image 60
 * got image 90
 * got image 120
...
..

I use gstream to watch rtsp from laptop by using:

gst-launch-1.0 -v playbin uri=rtsp://192.168.8.1:8900/live uridecodebin0::source::latency=0

Maybe here's the problem? But I also check VLC media player and got pretty much same image.

[Eric Katzfey]

@張為超 I don't see anything incorrect. Can you also show output when manually launching voxl-streamer with the -d option?

[張為超]

@Eric-Katzfey hello,sorry for responding late.

here's output for voxl-streamer -d :

voxl:~$ voxl-streamer -d
Enabling debug messages
Using configuration file /etc/modalai/voxl-streamer.conf
MPA interface chosen
Input pipe name /run/mpa/uvc/
Output stream width 640
Output stream height 480
Output stream bitrate 1000000
Output stream rotation 0
Output frame decimator 2
No image overlay specified
Camera server Connected
Meta data from incoming frame:
	magic_number 0x564F584C 
	timestamp_ns: 67575140926
	frame_id: 720
	width: 640
	height: 480
	size_bytes: 614400
	stride: 1280
	exposure_ns: 100
	gain: 100
	format: 8
Input parameters initialized
Made rtsp_server
Created RTSP server main loop context
Created RTSP server main loop
Created RTSP server main loop source for callback
Got 2 from gst_rtsp_server_attach
Stream available at rtsp://127.0.0.1:8900/live
A new client has connected to the RTSP server
Creating media pipeline for RTSP client
Made empty pipeline
Made app_source
Made parser_queue
Made raw_video_parser
Made scaler_queue
Made scaler
Made converter_queue
Made video_converter
Made rotator_queue
Made video_rotate
Made video_rotate_filter
Made encoder_queue
Made omx_encoder
Made rtp_filter
Made rtp_queue
Made rtp_payload
Made video_info
Made video_caps

[Eric Katzfey]

@張為超 Everything still looks normal. We will order a couple of Logitech C930e and see if we can recreate your issue.

[張為超]

This post is deleted!

[張為超]

@Eric-Katzfey Hey, I just update my voxl-platform from 3.6.0 to 3.8.0 and reinstall some package include uvc-server.
And I find out that the image become nice and clear. So I guess the problem is solved for me. Hope you guys still have time to refund C930e. Really big thanks for helping me to resolve problem. Cheers

[Eric Katzfey]

@張為超 Great, glad to hear it is working for you now!