casa-mp-base
Public
Commits
Ken Cunningham authored c43fe362068
| 1 + | --- frontend/mp4read.c.orig 2018-10-15 18:17:48.000000000 -0700 |
| 2 + | +++ frontend/mp4read.c 2018-10-15 18:18:45.000000000 -0700 |
| 3 + | |
| 4 + | static inline uint32_t bswap32(const uint32_t u32) |
| 5 + | { |
| 6 + | #ifndef WORDS_BIGENDIAN |
| 7 + | -#ifdef _MSC_VER |
| 8 + | - return _byteswap_ulong(u32); |
| 9 + | -#else |
| 10 + | +#if defined (__GNUC__) && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3))) |
| 11 + | return __builtin_bswap32(u32); |
| 12 + | +#elif defined (_MSC_VER) |
| 13 + | + return _byteswap_ulong(u32); |
| 14 + | +#else |
| 15 + | + return (u32 << 24) | ((u32 << 8) & 0xFF0000) | ((u32 >> 8) & 0xFF00) | (u32 >> 24); |
| 16 + | #endif |
| 17 + | #else |
| 18 + | - return u32; |
| 19 + | + return u32; |
| 20 + | #endif |
| 21 + | } |
| 22 + | |
| 23 + | static inline uint16_t bswap16(const uint16_t u16) |
| 24 + | { |
| 25 + | #ifndef WORDS_BIGENDIAN |
| 26 + | -#ifdef _MSC_VER |
| 27 + | - return _byteswap_ushort(u16); |
| 28 + | +#if defined (__GNUC__) && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 8))) |
| 29 + | + return __builtin_bswap16(u16); |
| 30 + | +#elif defined (_MSC_VER) |
| 31 + | + return _byteswap_ushort(u16); |
| 32 + | #else |
| 33 + | - return __builtin_bswap16(u16); |
| 34 + | + return (u16 << 8) | (u16 >> 8); |
| 35 + | #endif |
| 36 + | #else |
| 37 + | - return u16; |
| 38 + | + return u16; |
| 39 + | #endif |
| 40 + | } |