diff options
Diffstat (limited to 'libavcodec/ppc/fmtconvert_altivec.c')
| -rw-r--r-- | libavcodec/ppc/fmtconvert_altivec.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/libavcodec/ppc/fmtconvert_altivec.c b/libavcodec/ppc/fmtconvert_altivec.c index 3cb11543dd..7eff9f04d1 100644 --- a/libavcodec/ppc/fmtconvert_altivec.c +++ b/libavcodec/ppc/fmtconvert_altivec.c @@ -83,6 +83,22 @@ static void float_to_int16_altivec(int16_t *dst, const float *src, long len) } } +static void float_to_int16_stride_altivec(int16_t *dst, const float *src, + long len, int stride) +{ + int i, j; + vector signed short d, s; + + for (i = 0; i < len - 7; i += 8) { + d = float_to_int16_one_altivec(src + i); + for (j = 0; j < 8; j++) { + s = vec_splat(d, j); + vec_ste(s, 0, dst); + dst += stride; + } + } +} + static void float_to_int16_interleave_altivec(int16_t *dst, const float **src, long len, int channels) { @@ -124,13 +140,8 @@ static void float_to_int16_interleave_altivec(int16_t *dst, const float **src, } } } else { - DECLARE_ALIGNED(16, int16_t, tmp)[len]; - int c, j; - for (c = 0; c < channels; c++) { - float_to_int16_altivec(tmp, src[c], len); - for (i = 0, j = c; i < len; i++, j+=channels) - dst[j] = tmp[i]; - } + for (i = 0; i < channels; i++) + float_to_int16_stride_altivec(dst + i, src[i], len, channels); } } } |