Webcam | Make an android phone a WiFi webcam | Camera library

 by   xiongyihui Java Version: Current License: No License

kandi X-RAY | Webcam Summary

kandi X-RAY | Webcam Summary

Webcam is a Java library typically used in Video, Camera applications. Webcam has no bugs and it has low support. However Webcam has 1 vulnerabilities and it build file is not available. You can download it from GitHub.

Make an android phone a WiFi webcam.

            kandi-support Support

              Webcam has a low active ecosystem.
              It has 25 star(s) with 16 fork(s). There are 5 watchers for this library.
              It had no major release in the last 6 months.
              There are 1 open issues and 0 have been closed. On average issues are closed in 976 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of Webcam is current.

            kandi-Quality Quality

              Webcam has 0 bugs and 0 code smells.

            kandi-Security Security

              Webcam has 1 vulnerability issues reported (0 critical, 0 high, 1 medium, 0 low).
              Webcam code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              Webcam does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              Webcam releases are not available. You will need to build from source code and install.
              Webcam has no build file. You will be need to create the build yourself to build the component from source.
              It has 998 lines of code, 53 functions and 22 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed Webcam and discovered the below as its top functions. This is intended to give you an instant insight into Webcam implemented functionality, and help decide if they suit your requirements.
            • Called when the surface is created
            • Creates the surface view
            • Get IP address
            • Show a notification
            • Handle a connection
            • Send default response
            • Sends a snapshot
            • Send stream
            • Create and initialize the preferences
            • Initialize size preferences
            • Closes the camera
            • Closes the server
            • Initializes the component
            • Initialize the camera
            • Called when the button is clicked
            • Initializes the surface
            • Initializes the action bar
            • Destroy the camera
            • Run the server
            • Called when image is preview frame
            Get all kandi verified functions for this library.

            Webcam Key Features

            No Key Features are available at this moment for Webcam.

            Webcam Examples and Code Snippets

            No Code Snippets are available at this moment for Webcam.

            Community Discussions


            AttributeError: module '' has no attribute 'FACE_CONNECTIONS'
            Asked 2022-Mar-23 at 18:26

            need help this is my code:



            Answered 2021-Sep-08 at 15:12

            I just looked into the sourcecode at

            FACE_CONNECTIONS seems to be renamed/replaced by FACEMESH_TESSELATION.

            Just changing that name in the code should work.

            PS: If you want just the outlines of the face, it's now FACEMESH_CONTOURS



            Why is only a small part of the stream captured when I try to take a picture with the webcam?
            Asked 2022-Mar-11 at 17:57

            I am trying to take a snapshot of a video feed from a webcam. The preview works fine, but when I try to capture it and turn it into a picture only a very small part of it is captured. A 320x150 part of the right top corner.

            Already tried:

            • Changing CSS display property
            • Setting canvas width and height to video height (Which shows 1200x720, so that is correct
            • Changing the location of the canvas.




            Answered 2022-Mar-11 at 17:57

            You need to set the size of the actual canvas, like this:



            Problems getting QTimer to start when using QThread
            Asked 2022-Feb-10 at 22:46

            I'm trying to implement a webcam using PyQt5 from an example I found (here, but not really relevant). Getting the example to work wasn't an issue, but I wanted to modify some things and I am stuck on one particular problem.

            I have two classes, one QObject Capture which has a QBasicTimer that I want to start, and a QWidget MyWidget with a button that is supposed to start the timer of the Capture object, which is inside a QThread.

            If I directly connect the button click to the method that starts the timer, everything works fine.

            But I want to do some other things when I click the button, so I connected the button to a method of MyWidget first and call the start method of Capture from there. This, however, doesn't work: the timer doesn't start.

            Here is a minimal working example:



            Answered 2022-Feb-10 at 22:43

            If you connect the button's clicked signal to the worker's start slot, Qt will automatically detect that it's a cross-thread connection. When the signal is eventually emitted, it will be queued in the receiving thread's event-queue, which ensures the slot will be called within the worker thread.

            However, if you connect the button's clicked signal to the startCapture slot, there's no cross-thread connection, because the slot belongs to MyWidget (which lives in the main thread). When the signal is emitted this time, the slot tries to create the timer from within the main thread, which is not supported. Timers must always be started within the thread that creates them (otherwise Qt will print a message like "QBasicTimer::start: Timers cannot be started from another thread").

            A better approach is to connect the started and finished signals of the thread to some start and stop slots in the worker, and then call the thread's start and quit methods to control the worker. Here's a demo based on your script, which shows how to implement that:



            AWS lambda ResourceConflictException on deployment
            Asked 2022-Jan-12 at 11:33

            We have several lambda functions, and I've automated code deployment using the gradle-aws-plugin-reboot plugin.

            It works great on all but one lambda functions. On that particular one, I'm getting this error:



            Answered 2021-Dec-09 at 10:42

            I figured it out. You better not hold anything in your mouth, because this is hilarious!

            Basically being all out of options, I locked on to the last discernible difference between this deployment and the ones that worked: The filesize of the jar being deployed. The one that failed was by far the smallest. So I bloated it up by some 60% to make it comparable to everything else... and that fixed it!

            This sounds preposterous. Here's my hypothesis on what's going on: If the upload takes too little time, the lambda somehow needs longer to change its state. I'm not sure why that would be, you'd expect the state to change when things are done, not to take longer if things are done faster, right? Maybe there's a minimum time for the state to remain? I wouldn't know. There's one thing to support this hypothesis, though: The deployment from my local computer always worked. That upload would naturally take longer than jenkins needs from inside the aws vpc. So this hypothesis, as ludicrous as it sounds, fits all the facts that I have on hand.

            Maybe somebody with a better understanding of the lambda-internal mechanisms can add a comment to this explaining how this can happen...



            Push local WebRTC stream to a NodeJS server in the cloud
            Asked 2021-Dec-16 at 06:33

            I have a task, but I can't seem to get it done. I've created a very simple WebRTC stream on a Raspberry Pi which will function as a videochat-camera. With ionic I made a simple mobile application which can display my WebRTC stream when the phone is connected to the same network. This all works.

            So right now I have my own local stream which shows on my app. I now want to be able to broadcast this stream from my phone to a live server, so other people can spectate it.

            I know how to create a NodeJS server which deploys my webcam with the 'getUserMedia' function. But I want to 'push' my WebRTC stream to a live server so I can retrieve a public URL for it.

            Is there a way to push my local Websocket to a live environment? I'm using a local RTCPeerConnection to create a MediaStream object



            Answered 2021-Dec-10 at 16:54

            Is there a way to push my local Websocket to a live environment?

            It's not straightforward because you need more than vanilla webrtc (which is peer-to-peer). What you want is an SFU. Take a look at mediasoup.

            To realize why this is needed think about how the webrtc connection is established in your current app. It's a negotiation between two parties (facilitated by a signaling server). In order to turn this into a multi-cast setup you will need a proxy of sorts that then establishes separate peer-to-peer connections to all senders and receivers.



            Tensorflow: ValueError: Input 0 is incompatible with layer model: expected shape=(None, 99), found shape=(None, 3)
            Asked 2021-Nov-29 at 14:36

            I am trying to predict with a ANN classification model made in Tensorflow to classify pose keypoints with MediaPipe. The mediapipe pose tracker has 33 keypoints for x y and z coordinates for a total of 99 data points.

            I am training for 4 classes.

            This is running the pose embedding



            Answered 2021-Nov-17 at 08:30

            Maybe try changing the shape of pose_landmarks from (33, 3) to (1, 99) after your assertion and before you make a prediction:



            Gstreamer: OPUS to AAC while RTP to HLS
            Asked 2021-Nov-23 at 16:44

            I am trying to record RTP stream with video and audio to HLS. Using GStreamer and nodejs. I get WARNING: erroneous pipeline: no element "fdkaacenc". I am using macOS with M1 CPU and all plugins base, good, bad, and ugly are installed.

            The whole command I am trying to execute is this



            Answered 2021-Nov-23 at 16:44

            I fixed that by avenc_aac instead of fdkaacenc. Not to mention that you should use audioconvert before avenc_aac.

            The part of command I was trying to convert to aac:

            rtpopusdepay ! opusdec ! audioconvert ! avenc_aac.

            More: avenc_aac is part of gstreamer ffmpeg plugins which exists in linux, mac and windows. fdkaacenc is part of gstreamer bad plugins that may not be the same in all systems. That's is why using avenc_aac is more approperiate. So it can be executed in both mac and linux.



            Why am I getting "Failed to set remote video description send parameters for m-section with mid='0'" error in Android when it works in Chrome?
            Asked 2021-Nov-16 at 04:29
            Background Information

            Hi there, I am attempting to build a WebRTC client in Android that subscribes to a video feed that is being broadcast using NodeJS and JavaScript.

            The broadcaster code can be viewed in its entirety in this lovely article by Gabriel Tanner.

            It works beautifully when running it in localhost under the http://localhost:4000/broadcaster.html in Chrome and then visiting my IP Address from another device on the network. I can see the video and it is near real time.

            I have tried this using two different webcam devices, both a built-in and a USB webcam but the Android client does not work even though the JavaScript Broadcaster and Client works fine.

            The task at hand

            After following the tutorial and getting the example to work I decided to try and implement my own Android application for which the entire source code can be viewed right here on my GitHub.

            I have followed various tutorials around the place and the issue always stems from attempting to set the remote description which is done with the following bit of code:



            Answered 2021-Nov-16 at 04:29

            The error message was triggered due to the offer containing H264 codecs whilst the Android Client was not anticipating H264 and was not setup to encode and/or decode this particular hardware encoded stream.

            The fix was to ensure that the connection factory was setup as such:



            How to call async/await JavaScript function in Unity/C# WebGL platform?
            Asked 2021-Nov-11 at 18:39

            I followed this doc to call JavaScript function from my C# script in Unity to make a WebGL game.

            But there is a problem if the js code contains async/await, for example:

            C# script:



            Answered 2021-Nov-11 at 09:27

            tl;dr: This is how. c# doesn't need to be aware of the async and it should work.

            I just made a little test using




            How to paste one picture on top of another into a defined region
            Asked 2021-Oct-06 at 22:17

            I have this simple Python code that captures video from the camera and makes predictions on the emotions of the face (took it from here in case you need to run it).

            I like to put this video capture inside this frame (center is transparent) and display all. How can I do this?



            Answered 2021-Oct-06 at 20:56

            Short Implementation of Christoph's great solution in the comments.

            Step 1: Use the paint tool to extract the coordinates of the black box region.

            you can see the x,y coordinates at the bottom of your image.

            Step 2:

            a. resize every frame of the video to fit the black region size. width = x1 - x0 and height = y1 - y0.

            b. replace the black region pixels with the resized frames.



            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            Cross-site scripting (XSS) vulnerability in vwrooms/js/jsor-jcarousel/examples/special_textscroller.php in the VideoWhisper Webcam plugins for Drupal 7.x allows remote attackers to inject arbitrary web script or HTML via a URL to a crafted SVG file in the feed parameter.

            Install Webcam

            You can download it from GitHub.
            You can use Webcam like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the Webcam component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer For Gradle installation, please refer .


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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