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| author | Alex Converse <alex.converse@gmail.com> | 2011-12-12 10:23:51 -0800 |
|---|---|---|
| committer | Alex Converse <alex.converse@gmail.com> | 2011-12-12 21:36:54 -0800 |
| commit | 5cd56e193fd3c9f04075ef95be2d4eade87ca870 (patch) | |
| tree | b7ecc7e65773344de6a1845ef8b25162acc8f5ea | |
| parent | 58c42af722cebecd86e340dc3ed9ec44b1fe4a55 (diff) | |
| download | ffmpeg-5cd56e193fd3c9f04075ef95be2d4eade87ca870.tar.gz | |
aacdec: Use intfloat.h rather than local punning union.
| -rw-r--r-- | libavcodec/aacdec.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c index 8e4b510354..70396b63fa 100644 --- a/libavcodec/aacdec.c +++ b/libavcodec/aacdec.c @@ -98,6 +98,7 @@ #include "aacsbr.h" #include "mpeg4audio.h" #include "aacadtsdec.h" +#include "libavutil/intfloat.h" #include <assert.h> #include <errno.h> @@ -108,11 +109,6 @@ # include "arm/aac.h" #endif -union float754 { - float f; - uint32_t i; -}; - static VLC vlc_scalefactors; static VLC vlc_spectral[11]; @@ -1004,7 +1000,7 @@ static inline float *VMUL4(float *dst, const float *v, unsigned idx, static inline float *VMUL2S(float *dst, const float *v, unsigned idx, unsigned sign, const float *scale) { - union float754 s0, s1; + union av_intfloat32 s0, s1; s0.f = s1.f = *scale; s0.i ^= sign >> 1 << 31; @@ -1022,8 +1018,8 @@ static inline float *VMUL4S(float *dst, const float *v, unsigned idx, unsigned sign, const float *scale) { unsigned nz = idx >> 12; - union float754 s = { .f = *scale }; - union float754 t; + union av_intfloat32 s = { .f = *scale }; + union av_intfloat32 t; t.i = s.i ^ (sign & 1U<<31); *dst++ = v[idx & 3] * t.f; @@ -1272,7 +1268,7 @@ static int decode_spectrum_and_dequant(AACContext *ac, float coef[1024], static av_always_inline float flt16_round(float pf) { - union float754 tmp; + union av_intfloat32 tmp; tmp.f = pf; tmp.i = (tmp.i + 0x00008000U) & 0xFFFF0000U; return tmp.f; @@ -1280,7 +1276,7 @@ static av_always_inline float flt16_round(float pf) static av_always_inline float flt16_even(float pf) { - union float754 tmp; + union av_intfloat32 tmp; tmp.f = pf; tmp.i = (tmp.i + 0x00007FFFU + (tmp.i & 0x00010000U >> 16)) & 0xFFFF0000U; return tmp.f; @@ -1288,7 +1284,7 @@ static av_always_inline float flt16_even(float pf) static av_always_inline float flt16_trunc(float pf) { - union float754 pun; + union av_intfloat32 pun; pun.f = pf; pun.i &= 0xFFFF0000U; return pun.f; |