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PPC: use Altivec IMDCT only for supported sizes

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The Altivec IMDCT works with size 32 and higher only.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-07-05 15:53:05 +01:00
parent 65614321db
commit 6cbf2420b9
1 changed files with 4 additions and 2 deletions
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6
libavcodec/ppc/fft_altivec.c
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@ -141,7 +141,9 @@ av_cold void ff_fft_init_altivec(FFTContext *s)
{ {
#if HAVE_GNU_AS #if HAVE_GNU_AS
s->fft_calc = ff_fft_calc_interleave_altivec; s->fft_calc = ff_fft_calc_interleave_altivec;
s->imdct_calc = ff_imdct_calc_altivec; if (s->mdct_bits >= 5) {
s->imdct_half = ff_imdct_half_altivec; s->imdct_calc = ff_imdct_calc_altivec;
s->imdct_half = ff_imdct_half_altivec;
}
#endif #endif
} }