The development of the program must take into account the memory optimization, after all, the memory of the iphone itself is not very large. This section mainly describes the cocos2d development of memory optimization, detailed table now, both can be the same sprite (picture) only once, but also can be rendered only once for the genie.The following is the procedure of the program, first block the previous code.let me introduce you.Ccspritebatchnode optimize game rendering efficiency. in >ccspr
: HardwareGenerally use a multimeter or power meter Agilent to test, using the Power meter test, the need to make fake batteries to do, some can not plug the battery cell phone needs to be welded for power testing
1.5 GPU Chapter (FPS)
Concept:Over-rendering: The activity on the interface shows multiple layers and causesFrame rate: Screen sliding frame rateFrame variance: Slide smoothness of the screen**f
', ' 1 '): This option is a flash video with a. flv file name extension.Capturing the camera's frameThe Videocapture class can get the frame stream of the camera. For cameras, however, the Videocapture class is not usually constructed with the file name of the video, but rather the device index that needs to pass the cameraUnlike before, however, the Get () method of the Videocapture class cannot return the exact value of the camera frame rate (fps),
Preface: Long time did not read my Gmail mailbox, lunch break opened to look at, see Infoq recommended a "JavaScript high-performance animation and page Rendering" article, a cursory look, very praise! Speak very detailed, to a lot of details are very good, very easy to understand. So ... Notes born 1, fps-frame per second frame The page is that each frame change is drawn by the system (GPU or CPU). But this kind of drawing is different from the dra
;
Drawthread DT;
Particleset PS;
Particlethread pt;
String fps = "fps:n/a";
Public Particleview {Super (context);
This.getholder (). Addcallback (this);
DT = new Drawthread (this, Getholder ());
PS = new Particleset ();
PT = new Particlethread (this); public void Dodraw (Canvas Canvas) {canvas.drawcolor (color.black);//clear screen arraylist
4. Drawing class Drawthread and Activity class
Basically the same as the
Original URL:Https://github.com/tonydeng/fmj/blob/master/ffmpeg.md# screenshot command
screenshot Command
capture a picture of 352x240 size, format jpg
Ffmpeg-i input_file-y-F image2-t 0.001-s 352x240 output.jpg
convert the first 30 frames of the video into a animated Gif
Ffmpeg-i input_file-vframes 30-y-F gif output.gif
intercept the 230x240 thumbnail in the first 8.01 seconds of the video
Ffmpeg-i input_file-y-F mjpeg-ss 8-t 0.001-s 320x240 output.jpg
cut a picture every second .
Tracker initializes the Tracker.init (frame, Track_window) with the frame and box selection as the left mouse button.
# Read video/webcam = Cv2. Videocapture (0) # video = Cv2. Videocapture ("Test2.mp4") # naming window, the second parameter indicates that the window can be scaled Cv2.namedwindow (' Kcftracker ', Cv2.
Window_normal) # for Windows Bound mouse response function Onmouse cv2.setmousecallback (' Kcftracker ', onmouse) # If the camera is not opened correctly, exit if not video.
consumption +wi-fi connection consumption3) through the ADB shell Dumpsys battery to get3, Battery-historian (Google Open source tools)Method Two: HardwareGenerally use a multimeter or power meter Agilent to test, using the Power meter test, the need to make fake batteries to do, some can not plug the battery cell phone needs to be welded for power testing
1.5 GPU Chapter (FPS)
Concept:Over-rendering: The activity on the interface shows mult
*m_pparentwnd; Window parameter passing
void Setparentwnd (cyuvplayerdlg* pWnd) {m_pparentwnd = pWnd;}
Use M_pparentwnd to access the main window function when the child window needs to proactively pass parameters to the main window. Such as:
void cyuvplayerdlg::setparentparameters (int width, int height, int fps, int fmt, BOOL loop)
{
m_nwidth = Width;
m_nheight = height;
M_nfps = fps;
M_nyu
the video card supports 2D or 3D??????? Glxgears is a popular OpenGL test that renders very simple gears with output frame rate. Although Glxgears can test the graphics driver's direct rendering capability, it is obsolete and does not represent the current status of the Gnu/linux graphics display and the full capabilities of OpenGL. Glxgears only tested a small subset of OpenGL features. The performance improvements embodied in the glxgears are not felt in the game. It's not really perfect for
Prerequisite Description: When doing the GStreamer project, it is necessary to actively send the data collected from the device to the server.This allows you to proactively send data to the specified server using the Tcpclientsink and Udpsink plugins.Tcpclientsink usageNote: If you want to proactively send data to the server, you can transfer it via the Tcpclientsink plugin.The specific code is as followsData-client:Send to Linux:0 - - - 5 4000000 640,480 -O-| gst-launch-1.0 fdsrc! h264pars
(frame second, fps), the larger the FPS value the more fluent the film, but the file will be slightly larger, this I choose 25, Let the fluency not lose too much, and the movie file will be smaller.
Step five: In the Files tab, we can select the storage path of the output file (the default is the root of the C disk), select a sufficient disk to hold the file, and then press OK.
In computer animated movies,
are that I W As working with the wrong basic assumptions for doing a good internet game. My original design is targeted at Ok, I made a bad call. I have a T1 to my house and so I just wasn ' t familliar with the PPP life. I ' m addressing it now.
The problem was of course latency.What John did next when he released QuakeWorld would change the industry forever.
client-side Prediction
In the original Quake you felt the latency between your computer and the server. Press forward and you ' d wait h
, down, and right. The following three buttons are buttons of the Android system, basically the same as the remote control provided by Xiaomi box.Xiaomi remote control2. pull to the right. Different Operation interfaces are displayed, including buttons, gestures, handles, and body feeling. There is a search on the top of the page. As the home router is not very good, I always get stuck, if you want to have a friend guide, I will not introduce it here.3. Check the settings first. You can select v
development. I'm using Unity3d to develop it. Then you need to register an account on the Oculus Developer website and then generate a signature file based on your note4 device ID, depending on the process.Put this signature file in the asset of the project, otherwise you will not be able to run your app in Gear VR.2. Download and install the Oculus runtime so you can see the effect of running VR in the Unity Editor on your PC3. Import the Unityintegration.unitypackage into the Unity project an
interpreter:Import Pygame Print Pygame.ver1.9.1releaseOf course, the version that appears may be different from mine, and there is not much difference. Once you have determined that the import is not a problem, you have the Pygame library.Using PygamePygame has many modules, the following is an overview:
Module Name
function
Pygame.cdrom
Accessing the optical drive
Pygame.cursors
Load cursor
Pygame.display
Acce
, according to sources, the new Apple TV will have more powerful image processing performance, equipped with a controller that can be used as both a remote control and gamepad. Apple will also follow the example of mobile phones and tablets, and launch Apple TV's App Store for users to buy downloadable games.The source also revealed that the new Apple TV had a starting price of $150, which is now twice times the price of the Apple TV minimum, while th
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