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

Source: Internet
Author: User
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...

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.