Gx::transcoder can convert audio and video files in the following formats: MP3, MP2, AVI (MPEG 1,4 DivX, Cinepak, uncompressed + Audio MP3, alf2cd PCM, ADPCM), RM, WMV , Ogg Vorbis, ALF2CD, DSP, U-law, g.721, g.723, g.726, WMA, RAW, ADPCM supports VBR for MP3 and Ogg. It can also be used to catch CD tracks.
supported Formats:
AUDIO-MP1, MP2, MP3, MP4, M4A, OGG, WAV, Speex, Ulaw, Alaw, G711, G726, G729, Bonk, VQF, FLAC, OFR, WV, AAC, WMA
Video-all in
Java Strategy Pattern and strategypattern
I recently read Head First design patterns, a good book. Easy to understand.Rule Mode
Defines the algorithm family and encapsulates them separately so that they can be replaced with each other. This pattern makes the algorithm changes independent of the customers who use the algorithm.
Code:
Package gx. customer; import gx. behavior. flyBehavior; import
Java Observer Pattern and observerpatternObserver Mode
Define one-to-multiple dependencies between objects. In this way, when an object changes its state, all objects dependent on it will receive notifications and automatically update
Package gx. subject; import gx. observer. observer;/*** topic interface ** @ author always **/public interface Subject {void registerObserver (Observer observer); void remove
Java Decorator and javadecoratorDecoration Mode
Dynamically attaches the responsibility to the object. If you want to extend the function, the modifier provides a more flexible alternative solution than inheritance.
Code
Package gx. component;/*** Component: the decoration class and the decorated class must be inherited: to maintain the same type * @ author always **/public abstract class component {public abstract void description (); public abstrac
In fact, the method is almost the same, that is, using two filters, processing two components respectivelySobel operatorFirst, the Sobel operator.The GX is the horizontal filter, the Gy is the vertical filter, the vertical filter is the horizontal filter rotates 90 degrees.The filter is a 3x3 matrix that will be used as a planar convolution of the image.If there is no edge then the two point color is very close, the filter returns a small value, other
Demand:
To obtain the expected value according to some specified calculation formula.
Example:
Supplied data source $row = Array ( ' PV ' = + , ' uv ' = = 6, ' st ' = ' = 650, ' NUV ' + /-2);//demand formula, some quantity may not exist: such as NO$GX = ' (PV+UV)/(uv-nuv+1) *10+nuv-uv+no/0+3.5 '; $gx = preg_replace ('/[a-z][ A-z_\d]+/
In fact, the method is almost the same, that is, using two filters, processing two components respectivelySobel operator first say Sobel operatorThe GX is the horizontal filter, the Gy is the vertical filter, the vertical filter is the horizontal filter rotates 90 degrees.The filter is a 3x3 matrix that will be used as a planar convolution of the image.If there is no edge then the two point color is very close, the filter returns a small value, otherw
For eval optimization, we need to use the eval method to achieve inefficiency:
Obtain the expected value based on some specified calculation formulas.
Example:
// The provided data source $ row = array ('pv' => 50, 'u' => 6, 'st' => 650, 'nuv' => 2 ); // demand formula. some quantities may not exist, for example, no $ gx = '(pv + uv)/(uv-nuv + 1) * 10 + nuv-uv + no/0 + 3.5 '; $ gx = preg_replace ('/[a
any directory, any folder name
/home/gouxu/gx/key/ 2. Go to the newly created folder key
cd/home/gouxu/gx/key/ 3. Generate CA Private key
OpenSSL genrsa-out Ca.key 2048
Parameter description:
GENRSA: Generate RSA secret key;
The key file generated by-out Ca.key is Ca.key;
2048: Secret key length is 2048. 4. Generating a CA's certificate with the CA private key
OpenSSL req-new-x509-days 36500-key ca.key-out
int gx,gy;
The temp varialbe int g1,g2,g3,g4;
Double weight;
Double DTEMP,DTEMP1,DTEMP2;
Set the edge of the image for the Impossible demarcation Point for (x=0;xIn the above code, there are several if-else to be aware of. In the canny operator's paper proposed by John Canny, the non-maximum suppression is performed in 0, 90, 45, 1354 gradient directions, and each pixel gradient direction is replaced by this four direction in terms of simi
triangle into the original point, then the center of gravity.AC Code:The first type of code:#include #include #include using namespace Std;struct point{Double x, y;};Double area (point p1,point p2,point p3) {//cross-multiply to find triangular areasReturn ((p2.x-p1.x) * (P3.Y-P1.Y)-(p3.x-p1.x) * (P2.Y-P1.Y))/2;}int main (){int n,t;scanf ("%d", t);while (t--) {scanf ("%d", n);Point P1,p2,p3;Double Gx,gy,sumarea;gx
changes to the z-axis, the y-axis to the x-axis, and the z-axis to the y-axis (regardless of direction). 2.2.34-dollar calculation of the design of Euler's anglefloat q0 = 1, q1 = 0, q2 = 0, q3 = 0; Defining four elementsvoid Imu_update (void){float norm;Float GX = Mpu6500_gyro.x*gyro_gr,gy = MPU6500_GYRO.Y*GYRO_GR,GZ = unit conversion between mpu6500_gyro.z*gyro_gr;//anglesfloat ax = Acc_avg.x,ay = Acc_avg.y,az = acc_avg.z;float q0q0 = q0 * Q0;float
origin of the n+1 into a triangle, and then to seek the center of gravity.AC Code:The first type of code:#include #include #include using namespace Std;struct point{Double x, y;};Double area (point p1,point p2,point p3) {//cross-multiply to find triangular areasReturn ((p2.x-p1.x) * (P3.Y-P1.Y)-(p3.x-p1.x) * (P2.Y-P1.Y))/2;}int main (){int n,t;scanf ("%d", t);while (t--) {scanf ("%d", n);Point P1,p2,p3;Double Gx,gy,sumarea;
Achieve the solution of a quadratic equation (cycle), a quadratic equation cycle
// Equation. cpp: Defines the entry point for the console application.//# Include # Include # Include # Include /** The function to caculate a Real coefficient eqution's (ax ^ 2 + bx + c = 0) root.* IN: a, B, c ---- the three real coefficient,* OUT: r1, r2 ---- the two real roots or the real part of the complex roots.* I1, i2 ---- the image part of the complex roots.* RET: the status of the equation.*/Int equation1
Three or four yuan to Euler angle conversionAs a result of arctan and arcsin, this does not cover all orientations (the range of values for the corners has been met), so atan2 is needed instead of arctan.Iv. use in other coordinate systemsIn other coordinate systems, the above formula should be adjusted according to the definition of the axis. As in Direct3D, the x-axis of the Cartesian coordinate system changes to the z-axis, the y-axis to the x-axis, and the z-axis to the y-axis (regardless of
it.StarScript component onStarctr. js
Because there are more than one stars, you need to changeNew Sprite. Stars have the following attributes:
properties: { _starType: 0, _gx: 0, _gy: 0, starSprite: cc.Sprite, starSpriteFrames: { default: [], type: cc.SpriteFrame, },},
Corresponding to starspriteNew SpriteThe sprite component; starspriteframes stores the textures of all the stars; _ startype indicates the category of the stars, which determines which texture sta
, the constraint can be met)The range for Ax, Ay, AZ is [0, 2*pi]. For example, when ay=0, the y-axis of the phone is vertical upward; when ay=pi, the y-axis of the phone is down; AY=PI/2, the phone level, screen up, AY=3*PI/2, the phone level, the screen downAccording to the law of 3D vector algebra, we know:
Gx=g*cos (Ax)
Gy=g*cos (Ay)
Gz=g*cos (Az)
G^2=gz^2+gy^2+gz^2
Therefore, according to
Ec (2); today, let's talk about making a simple message board with php. First, let's analyze the message board. Step 1: Design the database. step 2: Set the html page, that is, the message page, Step 3: php processing page, and save it to the database. step 4: Message Display page. now let's take a look at Step 1: CREATETABLEIFNOTEXISTS 'gx _ guestbook '( nbsp; 'id' int (4) NOTNULLauto_ I script ec (2); script
Today, let's talk about how to use php
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