video-capture

问题 In Android/Java, Is there any code example to capture the screenshot of a computer with good frames per second programatically and create video? I'd like a tutorial or full source code to do this. I'd like the program to work with and without the device having been "rooted". There is app in the play store called Screencast Video Recorder that does this. But you need to ROOT the device for it to work, so I know it can be done. What's the best way to capture android screenshot and create a

问题 I have links to recorded conferences, how can I export video from them? 回答1: Log into your Adobe Connect account Click on Meetings > My Meetings Click on the link for the recording Click the “ Recordings ” link (right-side of screen) Click the link in the “ Name ” column Copy the “ URL for Viewing ” – Example, http://mycompany.adobeconnect.com/p12345678/ Paste it into a new browser tab then add the following to the end of the URL: output/filename.zip?download=zip Your URL should look similar

问题 I'm shooting video on an iPhone 4 with the front camera and combining the video with some other media assets. I'd like for this video to be portrait orientation - the default orientation for all video is landscape and in some circumstances, you have to manage this manually. I'm using AVFoundation and specifically AVAssetExportSession with a AVMutableVideoComposition. Based on the WWDC videos, it's clear that I have to handle 'fixing' the orientation myself when I'm combining videos into a new

问题 I'm trying to develop an iPhone app that will use the camera to record only the last few minutes/seconds. For example, you record some movie for 5 minutes click "save", and only the last 30s will be saved. I don't want to actually record five minutes and then chop last 30s (this wont work for me). This idea is called "Loop recording". This results in an endless video recording, but you remember only last part. Precorder app do what I want to do. (I want use this feature in other context) I

问题 I am currently doing a project for school and desperately in need of help. The main gist of the project: I am using 3 Bosch Dinion IP Cameras to film students during a lecture. I have to create a program on Visual Studio that enables the lecturer to view all 3 cameras on one screen, able to record all 3 footages and then save them in a database afterwards. The thing about Bosch is that there is very limited material for me to refer to online. I have already referred to SDKs from Bosch and

问题 I'm writing a program to save some webcam video to a file. I'm using the x264 codec found here x264 When I try writing frames to a file I get this error message poping up. x264vfw [warning]: Few frames probably would be lost. Ways to fix this: x264vfw [warning]: -if you use VirtualDub or its fork than you can enable 'VirtualDub Hack' option x264vfw [warning]: -you can enable 'File' output mode x264vfw [warning]: -you can enable 'Zero Latency' option I found this VirtualDub Hack but then I'm

问题 I have a animation written in XAML. I need to create a video (AVI) from that animation. Is there a way to do that ? 回答1: Here is how to do it for WPF (i.e. not Silverlight) http://blogs.msdn.com/b/saveenr/archive/2008/09/22/wpf-xaml-saving-an-animation-as-an-avi-video-file.aspx 回答2: If you have Expression Encoder, you can do the following: Create a blank movie that has as many frames as your animation (you can change the length later if you get it wrong) Use the XAML Animation overlay option

问题 I have a animation written in XAML. I need to create a video (AVI) from that animation. Is there a way to do that ? 回答1: Here is how to do it for WPF (i.e. not Silverlight) http://blogs.msdn.com/b/saveenr/archive/2008/09/22/wpf-xaml-saving-an-animation-as-an-avi-video-file.aspx 回答2: If you have Expression Encoder, you can do the following: Create a blank movie that has as many frames as your animation (you can change the length later if you get it wrong) Use the XAML Animation overlay option

问题 I am writing code for Video Recording function with Media recorder., But it throws Io Exception,Illegal State Exception i searched many times in google but no proper explanation for this one my code is public class Simple extends Activity { /** Called when the activity is first created. */ Button button,button2; MediaRecorder recorder; Camera camera; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); button=(Button)

问题 I have a multi-cast UDP Video stream that I need my OPenCV (Emgu ) 2.4.x app to capture and process ("client"). On the client, I can capture the stream using VLC (udp://xx.yy.zz.aaa:1234, However the my app fails to capture this udp stream. My code is quite simple ( Capture cap = new Capture ("udp://@212.1.1.1:1234"); p.s. I have tried with and 2/o the @ also tried rtp on that address. No luck :-/ Does OpenCV directly allow "capture" of UDP streams? or do I need to run VLC on the client to re