How to use php to read the background color of a flash file in high-width frames _ PHP Tutorial

Php reads the background color of the high-width frames of flash files. Php: how to read the background color of a high-width frame number in a flash file. This article describes how to use php to read the background color of a high-width frame number in a flash file. Share it with you for your reference. Specific Implementation methods: php method for reading background color of high-width frames of flash files

This example describes how to use php to read the background color of the high-width frames of flash files. Share it with you for your reference.

The specific implementation method is as follows:

The code is as follows:

/*

Example:

$ File = '/data/ad_files/5/5.swf ';

$ Flash = new flash ();

$ Flash = $ flash-> getswfinfo ($ file );

Echo"

The width and height of the file are: ". $ flash [" width "].": ". $ info [" height "];

Echo"

The file version is ". $ flash [" version "];

Echo"

The number of file frames is ". $ flash [" framecount "];

Echo"

The file frame rate is ". $ flash [" framerate "];

Echo"

The file background color is ". $ flash [" bgcolor "];

*/

Class flash

{

// Whether the background color is returned

Public $ need_back_color = false;

// Whether to return the version

Public $ need_version = false;

// Whether to return the frame rate

Public $ need_framerate = false;

// Whether to return the number of frames

Public $ need_framecount = false;

Public function _ construct ()

{

}

Public function getswfinfo ($ filename)

{

If (file_exists ($ filename )){

// Echo "File Modification time:". date ("m d y h: I: s.", filemtime ($ filename ))."

";

} Else {

// Echo "the target file does not exist! ";

Return array ("error" => $ filename );

}

// Open the file

$ Rs = fopen ($ filename, "r ");

// Read the file data

$ Str = fread ($ rs, filesize ($ filename ));

///

If ($ str [0] = "f ")

{

// Echo"

The file is already decompressed :";

} Else {

$ First = substr ($ str, 0, 8 );

$ Last = substr ($ str, 8 );

//

$ Last = gzuncompress ($ last );

//

$ Str = $ first. $ last;

$ Str [0] = "f ";

// Echo"

Extracted file information :";

}

$ Info = $ this-> getinfo ($ str );

Fclose ($ rs );

Return $ info;

}

Private function mydecbin ($ str, $ index)

{

$ Fbin = decbin (ord ($ str [$ index]);

While (strlen ($ fbin) <8) $ fbin = "0". $ fbin;

Return $ fbin;

}

Private function colorhex ($ data)

{

$ Tmp = dechex ($ data );

If (strlen ($ tmp) <2 ){

$ Tmp = '0'. $ tmp;

}

Return $ tmp;

}

Private function getinfo ($ str)

{

// Convert to binary

$ Fbin = $ this-> mydecbin ($ str, 8 );

// Calculates the unit length of rec.

$ Slen = bindec (substr ($ fbin, 0, 5 ));

// Calculate the bytes of rec

$ Recsize = $ slen * 4 + 5;

$ Recsize = ceil ($ recsize/8 );

// Rec binary

$ Recbin = $ fbin;

For ($ I = 9; $ I <$ recsize + 8; $ I ++)

{

$ Recbin. = $ this-> mydecbin ($ str, $ I );

}

// Rec data

$ Rec = array ();

For ($ I = 0; $ I <4; $ I ++)

{

$ Rec [] = bindec (substr ($ recbin, 5 + $ I * $ slen, $ slen)/20;

}

If ($ this-> need_back_color ){

// Background color

For ($ I = $ recsize + 12; $ I <strlen ($ str); $ I ++)

{

If (ord ($ str [$ I]) = 67 & ord ($ str [$ I + 1]) = 2)

{

$ Bgcolor = $ this-> colorhex (ord ($ str [$ I + 2]). $ this-> colorhex (ord ($ str [$ I + 3]). $ this-> colorhex (ord ($ str [$ I + 4]);

Break;

}

}

}

If ($ this-> need_version ){

// Version

$ Version = ord ($ str [3]);

}

If ($ this-> need_framerate ){

// Frame rate

$ Framerate = ord ($ str [$ recsize + 8])/256 + ord ($ str [$ recsize + 9]);

}

If ($ this-> need_framecount ){

// Number of frames

$ Framecount = ord ($ str [$ recsize + 11]) * 256 + ord ($ str [$ recsize + 10]);

}

Return array ("bgcolor" => $ bgcolor,

"Version" => $ version,

"Framerate" => $ framerate,

"Framecount" => $ framecount,

'Width' => $ rec [1],

'Height' => $ rec [3]

);

}

}

?>

Example: This article describes how php reads the background color of the high-width frames of flash files. Share it with you for your reference. Implementation method...