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| author | Steinar H. Gunderson <steinar+ffmpeg@gunderson.no> | 2017-01-08 14:14:54 +0100 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2017-01-11 15:40:01 +0100 |
| commit | eaff1aa09e90e2711207c9463db8bf8e8dec8178 (patch) | |
| tree | f591f9b57c53bcb3d4750058e82639cae26260a7 /libavcodec/mathops.h | |
| parent | 107b3064d8bf783c64f488f17c1f485dd72653e7 (diff) | |
| download | ffmpeg-eaff1aa09e90e2711207c9463db8bf8e8dec8178.tar.gz | |
avcodec: move bitswap_32() into a header file
Allows more codecs than mpeg12video to make use of it.
Diffstat (limited to 'libavcodec/mathops.h')
| -rw-r--r-- | libavcodec/mathops.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/libavcodec/mathops.h b/libavcodec/mathops.h index 5168dc2ce0..958132d897 100644 --- a/libavcodec/mathops.h +++ b/libavcodec/mathops.h @@ -249,4 +249,12 @@ static inline int8_t ff_u8_to_s8(uint8_t a) return b.s8; } +static av_always_inline uint32_t bitswap_32(uint32_t x) +{ + return (uint32_t)ff_reverse[ x & 0xFF] << 24 | + (uint32_t)ff_reverse[(x >> 8) & 0xFF] << 16 | + (uint32_t)ff_reverse[(x >> 16) & 0xFF] << 8 | + (uint32_t)ff_reverse[ x >> 24]; +} + #endif /* AVCODEC_MATHOPS_H */ |