2
J'utilise GIFEncoderclass pour convertir une série d'images GIF en Gif animé.GIFEncoder.Class.php et une animation GIF sans boucle
Ce que j'essaie de faire est de régler la boucle afin qu'elle ne se répète pas. Quand je mets la boucle à 1, dans Chrome et IE il ne joue pas une fois ... mais boucle une fois (donc joue deux fois). Dans FireFox, bien que cela fonctionne comme prévu, joue un ne boucle pas.
Est-ce un bug dans le GIFEncoder?
Est-ce que je fais quelque chose de mal?
Et comment puis-je résoudre ce problème?
mon code
$gif = new GIFEncoder (
$frames, // frames array
$time, // elapsed time array
1, // loops (0 = infinite)
0, // disposal
3, 2, 1,
0,// rgb of transparency
"url" // source type
);
classe GIFEncoder
Class GIFEncoder {
var $GIF = "GIF89a"; /* GIF header 6 bytes */
var $VER = "GIFEncoder V3.00"; /* Encoder version */
var $BUF = Array ();
var $OFS = Array ();
var $SIG = 0;
var $LOP = 0;
var $DIS = 2;
var $COL = -1;
var $IMG = -1;
var $ERR = Array (
'ERR00'=>"Does not supported function for only one image!",
'ERR01'=>"Source is not a GIF image!",
'ERR02'=>"Unintelligible flag ",
'ERR03'=>"Does not make animation from animated GIF source",
);
/*
:::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: GIFEncoder...
::
*/
function GIFEncoder (
$GIF_src, $GIF_dly, $GIF_lop, $GIF_dis,
$GIF_red, $GIF_grn, $GIF_blu, $GIF_ofs,
$GIF_mod
) {
if (! is_array ($GIF_src) && ! is_array ($GIF_dly)) {
printf ("%s: %s", $this->VER, $this->ERR [ 'ERR00' ]);
exit (0);
}
if (is_array ($GIF_ofs) && count ($GIF_ofs) > 1) {
$this->SIG = 1;
$this->OFS = $GIF_ofs;
}
$this->LOP = $GIF_lop === false ? false : (($GIF_lop > -1) ? $GIF_lop : 0);
$this->DIS = ($GIF_dis > -1) ? (($GIF_dis < 3) ? $GIF_dis : 3) : 2;
$this->COL = ($GIF_red > -1 && $GIF_grn > -1 && $GIF_blu > -1) ?
($GIF_red | ($GIF_grn << 8) | ($GIF_blu << 16)) : -1;
for ($i = 0; $i < count ($GIF_src); $i++) {
if (strToLower ($GIF_mod) == "url") {
$this->BUF [ ] = fread (fopen ($GIF_src [ $i ], "rb"), filesize ($GIF_src [ $i ]));
}
else if (strToLower ($GIF_mod) == "bin") {
$this->BUF [ ] = $GIF_src [ $i ];
}
else {
printf ("%s: %s (%s)!", $this->VER, $this->ERR [ 'ERR02' ], $GIF_mod);
exit (0);
}
if (substr ($this->BUF [ $i ], 0, 6) != "GIF87a" && substr ($this->BUF [ $i ], 0, 6) != "GIF89a") {
printf ("%s: %d %s", $this->VER, $i, $this->ERR [ 'ERR01' ]);
exit (0);
}
for ($j = (13 + 3 * (2 << (ord ($this->BUF [ $i ] { 10 }) & 0x07))), $k = TRUE; $k; $j++) {
switch ($this->BUF [ $i ] { $j }) {
case "!":
if ((substr ($this->BUF [ $i ], ($j + 3), 8)) == "NETSCAPE") {
printf ("%s: %s (%s source)!", $this->VER, $this->ERR [ 'ERR03' ], ($i + 1));
exit (0);
}
break;
case ";":
$k = FALSE;
break;
}
}
}
GIFEncoder::GIFAddHeader ();
for ($i = 0; $i < count ($this->BUF); $i++) {
GIFEncoder::GIFAddFrames ($i, $GIF_dly [ $i ]);
}
GIFEncoder::GIFAddFooter ();
}
/*
:::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: GIFAddHeader...
::
*/
function GIFAddHeader () {
$cmap = 0;
if (ord ($this->BUF [ 0 ] { 10 }) & 0x80) {
$cmap = 3 * (2 << (ord ($this->BUF [ 0 ] { 10 }) & 0x07));
$this->GIF .= substr ($this->BUF [ 0 ], 6, 7 );
$this->GIF .= substr ($this->BUF [ 0 ], 13, $cmap );
if($this->LOP !== false)
{
$this->GIF .= "!\377\13NETSCAPE2.0\3\1" . GIFEncoder::GIFWord ($this->LOP) . "\0";
}
}
}
/*
:::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: GIFAddFrames...
::
*/
function GIFAddFrames ($i, $d) {
$Locals_str = 13 + 3 * (2 << (ord ($this->BUF [ $i ] { 10 }) & 0x07));
$Locals_end = strlen ($this->BUF [ $i ]) - $Locals_str - 1;
$Locals_tmp = substr ($this->BUF [ $i ], $Locals_str, $Locals_end);
$Global_len = 2 << (ord ($this->BUF [ 0 ] { 10 }) & 0x07);
$Locals_len = 2 << (ord ($this->BUF [ $i ] { 10 }) & 0x07);
$Global_rgb = substr ($this->BUF [ 0 ], 13,
3 * (2 << (ord ($this->BUF [ 0 ] { 10 }) & 0x07)));
$Locals_rgb = substr ($this->BUF [ $i ], 13,
3 * (2 << (ord ($this->BUF [ $i ] { 10 }) & 0x07)));
$Locals_ext = "!\xF9\x04" . chr (($this->DIS << 2) + 0) .
chr (($d >> 0) & 0xFF) . chr (($d >> 8) & 0xFF) . "\x0\x0";
if ($this->COL > -1 && ord ($this->BUF [ $i ] { 10 }) & 0x80) {
for ($j = 0; $j < (2 << (ord ($this->BUF [ $i ] { 10 }) & 0x07)); $j++) {
if (
ord ($Locals_rgb { 3 * $j + 0 }) == (($this->COL >> 16) & 0xFF) &&
ord ($Locals_rgb { 3 * $j + 1 }) == (($this->COL >> 8) & 0xFF) &&
ord ($Locals_rgb { 3 * $j + 2 }) == (($this->COL >> 0) & 0xFF)
) {
$Locals_ext = "!\xF9\x04" . chr (($this->DIS << 2) + 1) .
chr (($d >> 0) & 0xFF) . chr (($d >> 8) & 0xFF) . chr ($j) . "\x0";
break;
}
}
}
switch ($Locals_tmp { 0 }) {
case "!":
$Locals_img = substr ($Locals_tmp, 8, 10);
$Locals_tmp = substr ($Locals_tmp, 18, strlen ($Locals_tmp) - 18);
break;
case ",":
$Locals_img = substr ($Locals_tmp, 0, 10);
$Locals_tmp = substr ($Locals_tmp, 10, strlen ($Locals_tmp) - 10);
break;
}
if (ord ($this->BUF [ $i ] { 10 }) & 0x80 && $this->IMG > -1) {
if ($Global_len == $Locals_len) {
if (GIFEncoder::GIFBlockCompare ($Global_rgb, $Locals_rgb, $Global_len)) {
$this->GIF .= ($Locals_ext . $Locals_img . $Locals_tmp);
}
else {
/*
*
* XY Padding...
*
*/
if ($this->SIG == 1) {
$Locals_img { 1 } = chr ($this->OFS [ $i ] [ 0 ] & 0xFF);
$Locals_img { 2 } = chr (($$this->OFS [ $i ] [ 0 ] & 0xFF00) >> 8);
$Locals_img { 3 } = chr ($this->OFS [ $i ] [ 1 ] & 0xFF);
$Locals_img { 4 } = chr (($this->OFS [ $i ] [ 1 ] & 0xFF00) >> 8);
}
$byte = ord ($Locals_img { 9 });
$byte |= 0x80;
$byte &= 0xF8;
$byte |= (ord ($this->BUF [ 0 ] { 10 }) & 0x07);
$Locals_img { 9 } = chr ($byte);
$this->GIF .= ($Locals_ext . $Locals_img . $Locals_rgb . $Locals_tmp);
}
}
else {
/*
*
* XY Padding...
*
*/
if ($this->SIG == 1) {
$Locals_img { 1 } = chr ($this->OFS [ $i ] [ 0 ] & 0xFF);
$Locals_img { 2 } = chr (($$this->OFS [ $i ] [ 0 ] & 0xFF00) >> 8);
$Locals_img { 3 } = chr ($this->OFS [ $i ] [ 1 ] & 0xFF);
$Locals_img { 4 } = chr (($this->OFS [ $i ] [ 1 ] & 0xFF00) >> 8);
}
$byte = ord ($Locals_img { 9 });
$byte |= 0x80;
$byte &= 0xF8;
$byte |= (ord ($this->BUF [ $i ] { 10 }) & 0x07);
$Locals_img { 9 } = chr ($byte);
$this->GIF .= ($Locals_ext . $Locals_img . $Locals_rgb . $Locals_tmp);
}
}
else {
$this->GIF .= ($Locals_ext . $Locals_img . $Locals_tmp);
}
$this->IMG = 1;
}
/*
:::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: GIFAddFooter...
::
*/
function GIFAddFooter () {
$this->GIF .= ";";
}
/*
:::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: GIFBlockCompare...
::
*/
function GIFBlockCompare ($GlobalBlock, $LocalBlock, $Len) {
for ($i = 0; $i < $Len; $i++) {
if (
$GlobalBlock { 3 * $i + 0 } != $LocalBlock { 3 * $i + 0 } ||
$GlobalBlock { 3 * $i + 1 } != $LocalBlock { 3 * $i + 1 } ||
$GlobalBlock { 3 * $i + 2 } != $LocalBlock { 3 * $i + 2 }
) {
return (0);
}
}
return (1);
}
/*
:::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: GIFWord...
::
*/
function GIFWord ($int) {
return (chr ($int & 0xFF) . chr (($int >> 8) & 0xFF));
}
/*
:::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: GetAnimation...
::
*/
function GetAnimation () {
return ($this->GIF);
}
}
Ce poste est un peu vieux, mais je pense qu'il est intéressant de noter à toute personne qui trouve ce que le GIFEncoder.Class .php Publié par Danny est V3.00. Si vous avez une version inférieure à 3,00, la solution fournie ne fonctionnera pas. En outre, copier et coller la classe à partir de cette page entraînera des erreurs. Donc, vous aurez à Google la classe mise à jour. Bonne chance! – Partack