nsgif__app_ext_is_loop_count()

static bool fl::third_party::nsgif__app_ext_is_loop_count ( const fl::u8 * data, fl::size len )

static

Check an app ext identifier and authentication code for loop count extension.

Parameters

[in]	data	The data to decode.
[in]	len	Byte length of data.

Returns

true if extension is a loop count extension.

Definition at line 816 of file gif.cpp.hpp.

{
    enum {
        EXT_LOOP_COUNT_BLOCK_SIZE = 0x0b,
    };
 
    FL_ASSERT(len > 13, "Extension data too short");
    (void)(len);
 
    if (data[1] == EXT_LOOP_COUNT_BLOCK_SIZE) {
        if (strncmp((const char *)data + 2, "NETSCAPE2.0", 11) == 0 ||
            strncmp((const char *)data + 2, "ANIMEXTS1.0", 11) == 0) {
            return true;
        }
    }
 
    return false;
}

References FL_ASSERT, FL_NOEXCEPT, and fl::strncmp().

Referenced by nsgif__parse_extension_application().

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