Changeset dfb78a8b886b9bfa743dad9ea8e045c309cb69b3

Timestamp:

02/10/07 10:49:15 (2 years ago)

Author:

Rémi Denis-Courmont <rem@videolan.org>

git-committer:

Rémi Denis-Courmont <rem@videolan.org> 1171100955 +0000

git-parent:

[6be4bda5b2ba0c1bad35328a195daf43d4c57cb4]

git-author:

Rémi Denis-Courmont <rem@videolan.org> 1171100955 +0000

Message:

De-inline base64 decoder

Files:

• include/vlc_strings.h (modified) (1 diff)
• include/vlc_url.h (modified) (1 diff)
• src/text/strings.c (modified) (1 diff)

include/vlc_strings.h

@@ -39 +39 @@
-VLC_EXPORT( char *, convert_xml_special_chars, ( const char *psz_content ) );
-
+VLC_EXPORT( char *, vlc_b64_encode, ( const char * ) );
+
-VLC_EXPORT( char *, str_format_time, ( const char * ) );
-#define str_format_meta( a, b ) __str_format_meta( VLC_OBJECT( a ), b )

include/vlc_url.h

@@ -212 +212 @@
-}
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-#endif

src/text/strings.c

@@ -329 +329 @@
-}
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+/* Base64 encoding */
+char *vlc_b64_encode( const char *src )
+{
+    static const char b64[] =
+           "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+    size_t len = strlen( src );
+    const uint8_t *in = (const uint8_t *)src;
+
+    char *ret;
+    char *dst = (char *)malloc( ( len + 4 ) * 4 / 3 );
+    if( dst == NULL )
+        return NULL;
+
+    ret = dst;
+
+    while( len > 0 )
+    {
+        /* pops (up to) 3 bytes of input, push 4 bytes */
+        uint32_t v = *in++ << 24; // 1/3
+        *dst++ = b64[v >> 26]; // 1/4
+        v = v << 6;
+
+        if( len >= 2 )
+            v |= *in++ << 22; // 2/3
+        *dst++ = b64[v >> 26]; // 2/4
+        v = v << 6;
+
+        if( len >= 3 )
+            v |= *in++ << 20; // 3/3
+        *dst++ = ( len >= 2 ) ? b64[v >> 26] : '='; // 3/4
+        v = v << 6;
+
+        *dst++ = ( len >= 3 ) ? b64[v >> 26] : '='; // 4/4
+
+        len--;
+        if( len > 0 )
+        {
+            len--;
+            if( len > 0 )
+                len--;
+        }
+    }
+
+    *dst = '\0';
+
+    return ret;
+}
+
-/****************************************************************************
- * String formating functions