The selected version is the latest version: libev-4.04. The libev code is concise. In addition to encapsulation files such as the efficient I/O model, the core files are ev. h and ev. c, of which ev. c contains about 4000 lines. A large number of macros are used in the code, and macros are nested. To facilitate understanding of libev code, the macro is restored here.
The ev_watcher struct (its member is the public part of another structure ):
Typedef struct ev_watcher {
Int active; // activati
. The first byte contains the first sample of Y, the second byte contains the first sample of U (CB), and the third byte contains the second sample of Y, the fourth byte contains the first V (CR) sample, as shown in 6.
If the image is viewed as composed of two little-EndianWordValue array, the firstWordInclude y0 in the lowest valid bits (LSB) and U in the highest valid bits (MSB. SecondWordInclude Y1 in LSB and V in MSB.
Is yuy2 used for Microsoft
Inherited constructor destructor
Call of constructor and destructor in class inheritance
Currently, there are three classes. The class definition is as follows:
Class ca{Public:CA () {cout ~ CA () {cout
};
Class CB: public CA{Public:CB () {cout ~ CB () {cout };
Class CC: Public CB{Public:CC () {cout ~ CC () {cout };
Ca is grandpa,
(): Read single character
4.read (char[] cbuf,int off,int len): reads a character into one part of the array.
5.readLine (): Read a text line
6.reset (): RESET, coordinate with Mark (int readaheadlimit)
7.skip (long N): skipping characters
The role of BufferedReader:
Reads text from a character input stream and buffers individual characters to enable efficient reading of characters, arrays, and rows.
You can specify the size of the buffer, or you can use the default size. In most cases, the de
image in MP @ ML must be in the same macro block line.The image bar layer is a macro block layer. Three macro block structures are defined in the MPEG-2: 4: 2: 0 Macro Block macro block and macro block, the relationship between the brightness block and the number of chromatic aberration blocks that constitute a macro block.The macro block contains four brightness image blocks, one CB Color Block and one Cr color block. The macro block contains four b
Before writing a question, give a few keywords in Chinese and English, overload, override, and hide ). In early C ++ books, people who translate may not be familiar with professional terms (nor can they blame them. They are not engaged in computer programming and they are specialized in English ), overload and override are often incorrect!
Let's first look at some code and its compilation results.
Instance 1:
Code: select all
#include using namespace std;class
Not common, but very interesting.// C + + strong turn // 4 medium-strong turn way // What are the benefits of using C + + strong:: Code clearer//1.static_cast and C have a strong turn, no type checking at run time to ensure security classCA {intA; Public: CA (inti) {a =i;} voidRun () {printf ("%d\n", a); } }; classCb: PublicCA {intb; Public: CB (inti): CA (i) {b =4; } voidRun () {printf ("%d", B); } }; voidMain () {//======
(i = 0; i
Dat_copy (capframebuf->frame.ifrm.y1 + i * caplinepitch,
Disframebuf->frame.ifrm.y1 + i * dislinepitch,
Numpixels);
Dat_copy (CAPFRAMEBUF->FRAME.IFRM.CB1 + i * (caplinepitch >> 1),
DISFRAMEBUF->FRAME.IFRM.CB1 + i * (dislinepitch >> 1),
NUMPIXELS>>1);
Dat_copy (CAPFRAMEBUF->FRAME.IFRM.CR1 + i * (caplinepitch >> 1),
DISFRAMEBUF->FRAME.IFRM.CR1 + i * (dislinepitch >> 1),
NUMPIXELS>>1);
}
Fvid_exchange (Capchan, capframebuf);
#else//If capture is defined, the fill image is buffered to 8
detailed description, which calls the DLL function as an "implicit connection" by using the header file ").
We often see that Lp is actually a legacy of Windows 16. At that time, segment address addressing was adopted. Physical addresses include segment addresses and intra-segment addresses. Long pointers can be used for addressing different segments, while NP, or near pointers, can be used for addressing within the same segment. However, 32-bit Win
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Accidentally see an article on the Internet, speaking of the World Hacking programming contest first place a very cool program, size only 4KB, using the Debug command to run.The sad reminder is that win8.1 's debug command is not available.The error is as follows:Here's how to fix it:1. Download DOSBox and Debug.exe1:http://download.csdn.net/detail/ljgstudy/7557693 (PS: Need 1 points, many points of the Great God Mercy ha ~)2:http://pan.baidu.com/s/1iwkgy (free points)2. Install the DOSBox and s
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