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-rw-r--r--libraries/phpvideotoolkit/adapters/ffmpeg-php/gifencoder/GIFEncoder.class.phpvideotoolkit.php270
1 files changed, 270 insertions, 0 deletions
diff --git a/libraries/phpvideotoolkit/adapters/ffmpeg-php/gifencoder/GIFEncoder.class.phpvideotoolkit.php b/libraries/phpvideotoolkit/adapters/ffmpeg-php/gifencoder/GIFEncoder.class.phpvideotoolkit.php
new file mode 100644
index 0000000..9dbfda7
--- /dev/null
+++ b/libraries/phpvideotoolkit/adapters/ffmpeg-php/gifencoder/GIFEncoder.class.phpvideotoolkit.php
@@ -0,0 +1,270 @@
+<?php
+/*
+:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::
+:: GIFEncoder Version 3.0 by László Zsidi, http://gifs.hu
+::
+:: This class is a rewritten 'GifMerge.class.php' version.
+::
+:: Modification:
+:: - Simplified and easy code,
+:: - Ultra fast encoding,
+:: - Built-in errors,
+:: - Stable working
+::
+::
+:: Updated at 2007. 02. 13. '00.05.AM'
+::
+::
+::
+:: Try on-line GIFBuilder Form demo based on GIFEncoder.
+::
+:: http://gifs.hu/phpclasses/demos/GifBuilder/
+::
+:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+*/
+
+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 );
+ }
+}
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