49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/*
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$Id: types.c 1 2009-11-13 00:04:24Z noirotm $
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FLV Metadata updater
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Copyright (C) 2007, 2008 Marc Noirot <marc.noirot AT gmail.com>
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This file is part of FLVMeta.
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FLVMeta is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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FLVMeta is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FLVMeta; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "types.h"
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#ifndef WORDS_BIGENDIAN
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/* swap 64 bits doubles */
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typedef union __convert_u {
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uint64_t i;
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number64_t f;
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} convert_u;
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number64_t swap_number64(number64_t n) {
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convert_u c;
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c.f = n;
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c.i = (((c.i & 0x00000000000000FFULL) << 56) |
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((c.i & 0x000000000000FF00ULL) << 40) |
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((c.i & 0x0000000000FF0000ULL) << 24) |
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((c.i & 0x00000000FF000000ULL) << 8) |
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((c.i & 0x000000FF00000000ULL) >> 8) |
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((c.i & 0x0000FF0000000000ULL) >> 24) |
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((c.i & 0x00FF000000000000ULL) >> 40) |
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((c.i & 0xFF00000000000000ULL) >> 56));
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return c.f;
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}
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#endif /* !WORDS_BIGENDIAN */
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