Go to advanced search

by RpiName
Fri Jun 29, 2018 8:58 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Auvidea B101
Replies: 14
Views: 3370

Re: Auvidea B101

Try

Code: Select all

uv4l --driver raspicam --auto-video_nr --width 640 --height 480 --encoding jpeg –tc358743-i2c-dev=/dev/i2c-0 -f --verbosity=8
by RpiName
Thu Jun 28, 2018 6:37 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Auvidea B101
Replies: 14
Views: 3370

Re: Auvidea B101

To make the B101 work with UV4L on the Pi Zero is rather simple provided that:: 1. you follow the instructions here *carefully* (which refer to the Rpi3): https://www.linux-projects.org/uv4l/installation/ 2. as opposite to what mentioned for the rpi3 in the doc., you set the: tc358743-i2c-dev = /dev...
by RpiName
Mon Jun 25, 2018 9:34 am
Forum: Camera board
Topic: Native WebRTC extension for UV4L now ready!
Replies: 40
Views: 29517

Re: Native WebRTC extension for UV4L now ready!

To know how to customize UV4L, refer to this example:
https://www.linux-projects.org/uv4l/tut ... detection/
by RpiName
Wed Jun 20, 2018 7:36 pm
Forum: General discussion
Topic: UV4L and IP camera
Replies: 14
Views: 1725

Re: UV4L and IP camera

Two or three days ago UV4L introduced support for trickle ICE, which can speed up the ICE negotiation with the other peer while the candidates are being generated, while before it had to gather all the ICE candidates before the negotiation could take place, which could require several seconds or eve...
by RpiName
Wed Jun 20, 2018 12:30 pm
Forum: General discussion
Topic: UV4L and IP camera
Replies: 14
Views: 1725

Re: UV4L and IP camera

what url do you pass to uv4l for authenticating and what is the output from uv4l?
by RpiName
Wed Jun 20, 2018 10:20 am
Forum: General discussion
Topic: UV4L and IP camera
Replies: 14
Views: 1725

Re: UV4L and IP camera

good it works, but if authentication was required before and chrome did not need or ask for a password, then either the IP Camera has a problem or chrome has a problem
by RpiName
Tue Jun 19, 2018 10:44 am
Forum: General discussion
Topic: UV4L and IP camera
Replies: 14
Views: 1725

Re: UV4L and IP camera

it seems you need to provide user and password in the --uri (see the uv4l tutorial to know how to pass them) ? check the full uri is correct by loading it e.g. in a browser and see if you can get a jpeg frame from there.
by RpiName
Tue Jun 19, 2018 10:24 am
Forum: General discussion
Topic: UV4L and IP camera
Replies: 14
Views: 1725

Re: UV4L and IP camera

You can try to add "--verbosity=8 -f" to the command line to see what happens, and "dd if=/dev/video0 of=img.jpeg bs=1M" to try to capture a single jpg frame.
by RpiName
Mon Jun 18, 2018 11:27 pm
Forum: Camera board
Topic: Stream + Stills
Replies: 1
Views: 356

Re: Stream + Stills

With UV4L you can take Stills while the MJPEG video is in progress. The URL for the Stills tyically is:

https://<ip>:8080/stream/snapshot.jpeg?delay_s=10

where delay_s is a delay in seconds since the HTTP request is made. However, I think the resolution will be the same as the video.
by RpiName
Tue Jun 05, 2018 8:10 am
Forum: Troubleshooting
Topic: uv4l w/ USB webcam: unable to start server/stream
Replies: 1
Views: 1199

Re: uv4l w/ USB webcam: unable to start server/stream

You have to use the uv4l-uvc driver, not raspicam.
by RpiName
Fri Jun 01, 2018 10:01 pm
Forum: Raspbian
Topic: Current, best encrypted IM/VOIP experience in Raspbian?
Replies: 4
Views: 2020

Re: GNU Ring might actually be performant on a Pi 3B+

esbeeb wrote:
Fri Jun 01, 2018 8:11 pm
I think we can also rule out WebRTC on the Pi, despite the heroic efforts of the uv4l project. It would not likely be performant.
WebRTC is easily made possible on the Pi with UV4L because UV4L implements WebRTC natively and can use hardware acceleration for both H264 decoding and encoding.
by RpiName
Mon May 21, 2018 10:21 am
Forum: Graphics, sound and multimedia
Topic: HDMI to CSI-2 via TC358743 on kernel 4.1
Replies: 580
Views: 179733

Re: HDMI to CSI-2 via TC358743 on kernel 4.1

carlosgambato wrote:
Sun May 20, 2018 10:14 pm
I would like to know if the driver that I found on your site are compatible with Raspbian Stretch and Raspberry Pi3 B+ and, in this case, how could I solve this problem.
it should work. Exactly follow the instructions reported there.
by RpiName
Sun May 13, 2018 8:53 pm
Forum: Troubleshooting
Topic: rasberri pi 3 and Zero W keeps crashing
Replies: 19
Views: 2203

Re: rasberri pi 3 and Zero W keeps crashing

uv4l is a program which runs in userspace, like any other programs it cannot provoke any crashes, unless it triggers a bug in the kernel, but then the bug is in the kernel, not in uv4l.
by RpiName
Sun Apr 29, 2018 2:25 pm
Forum: Camera board
Topic: UV4L WebRTC and Echo Canceler
Replies: 3
Views: 811

Re: UV4L WebRTC and Echo Canceler

Geoffr98 wrote:
Mon Mar 26, 2018 9:12 pm
I have also found that the noise reduction of the WebRTC is enabled - can this be disabled?
--echo-cancellation=yes|no should turn on and off most of audio post processing (not just aec)

it should have been fixed and effective in the latest release of uv4l
by RpiName
Fri Apr 27, 2018 7:46 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Error when trying to use Auvidea B101 with Pi 3 - Please help
Replies: 1
Views: 907

Re: Error when trying to use Auvidea B101 with Pi 3 - Please help

spencers9478 wrote:
Fri Apr 27, 2018 1:36 am

Code: Select all

$ uv4l --driver-raspicam --auto-video_nr --width 640 --height 480 --encoding jpeg
uv4l --driver-raspicam ? you probably meant "uv4l --driver raspicam"
by RpiName
Fri Apr 20, 2018 9:51 am
Forum: Troubleshooting
Topic: uv4l WEBRTC connecting within LAN takes 8-9 seconds
Replies: 4
Views: 308

Re: uv4l WEBRTC connecting within LAN takes 8-9 seconds

Weird, with simplest LAN scenarios, 8-9 seconds is too much. It should take 1 second at most...
by RpiName
Fri Apr 20, 2018 8:29 am
Forum: Troubleshooting
Topic: uv4l WEBRTC connecting within LAN takes 8-9 seconds
Replies: 4
Views: 308

Re: uv4l WEBRTC connecting within LAN takes 8-9 seconds

you can try to disable the TCP candidates generation with the --webrtc-tcp-candidate-policy=0 server option.
by RpiName
Tue Apr 17, 2018 8:11 am
Forum: Beginners
Topic: WebRTC peer without a browser
Replies: 9
Views: 2153

Re: WebRTC peer without a browser

are you sure the webcam is uvc compliant?

in any case, uvc or not uvc, you can make uv4l the kernel driver directly, e.g.:

modprobe uvcvideo (or other video kernel module)

this will register e.g. /dev/video1.

then:

uv4l --external-driver --device-name=video1 --server-option '--port=9000'
by RpiName
Fri Mar 16, 2018 8:53 am
Forum: Camera board
Topic: U4VL & WebRTC connection status
Replies: 1
Views: 389

Re: U4VL & WebRTC connection status

You can rely on the information about data channels being opened or closed. Please read this first: https://www.linux-projects.org/uv4l/tutorials/webrtc-data-channels/ whenever a webrtc session starts a data channel is open and a connection to the socket mentioned in the above tutorial is made. When...
by RpiName
Sun Mar 11, 2018 7:41 pm
Forum: Troubleshooting
Topic: Using UV4l with uvc and mjpeg streamer help
Replies: 2
Views: 1211

Re: Using UV4l with uvc and mjpeg streamer help

uv4l-uvc should not provoke any kernel oops as it's an userspace program. check your power supply is powering the usb webcam properly. that said,if uv4l-uvc gives problems try the kernel driver: modprobe uvcvideo this will register e.g. /dev/video1. then: uv4l --external-driver --device-name=video1 ...
by RpiName
Wed Feb 28, 2018 9:58 am
Forum: Python
Topic: Sending data to webrtc data channel from RPi borad 3.
Replies: 1
Views: 459

Re: Sending data to webrtc data channel from RPi borad 3.

have a look at the source of the web page at /stream/webrtc on uv4l the streaming server and read this:
https://www.linux-projects.org/uv4l/tut ... -channels/
by RpiName
Mon Feb 26, 2018 5:36 pm
Forum: Graphics, sound and multimedia
Topic: Video streaming with delay
Replies: 2
Views: 427

Re: Video streaming with delay

I was tasked with setting up a Raspberry Pi as a video streamer that was accessible from a webpage. I used UV4L and it is working with the expected 2-3 second delay. I was wondering if it was possible to purposely increase this delay to 20-30 seconds? For reference we are currently using a Pi 2B, b...
by RpiName
Tue Feb 13, 2018 9:19 pm
Forum: Troubleshooting
Topic: No preview windows after installing uv4l
Replies: 1
Views: 248

Re: No preview windows after installing uv4l

What I can tell is that uv4l does not have any effect on the preview window or on the programs using it if uv4l is not running, even if it is running but you do not access the device in any way.
by RpiName
Sat Feb 10, 2018 10:28 pm
Forum: Python
Topic: Picamera fetch video streaming
Replies: 1
Views: 521

Re: Picamera fetch video streaming

I'm pretty sure the problem is that two different process can't use the camera Exactly. so my question how could i manage to fetch the video if it streaming at the same time. There are three ways: 1. from your python scripts, get two "raw" streams from the UV4L HTTP(S) Streaming Server, one for use...

Go to advanced search