From 2881c83127c680defd1d596200897dd6b6db7977 Mon Sep 17 00:00:00 2001 From: Måns Rullgård Date: Sat, 20 Mar 2010 21:27:03 +0000 Subject: Call rdft by function pointer Call the RDFT by a function pointer like other FFT related transforms. This makes instruction set optimized versions possible. Based on patch by Alex Converse. Originally committed as revision 22609 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/rdft.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'libavcodec/rdft.c') diff --git a/libavcodec/rdft.c b/libavcodec/rdft.c index 8d0167798f..0bab696f82 100644 --- a/libavcodec/rdft.c +++ b/libavcodec/rdft.c @@ -50,6 +50,8 @@ SINTABLE_CONST FFTSample * const ff_sin_tabs[] = { ff_sin_2048, ff_sin_4096, ff_sin_8192, ff_sin_16384, ff_sin_32768, ff_sin_65536, }; +static void ff_rdft_calc_c(RDFTContext* s, FFTSample* data); + av_cold int ff_rdft_init(RDFTContext *s, int nbits, enum RDFTransformType trans) { int n = 1 << nbits; @@ -74,6 +76,7 @@ av_cold int ff_rdft_init(RDFTContext *s, int nbits, enum RDFTransformType trans) s->tsin[i] = sin(i*theta); } #endif + s->rdft_calc = ff_rdft_calc_c; return 0; } @@ -123,11 +126,6 @@ static void ff_rdft_calc_c(RDFTContext* s, FFTSample* data) } } -void ff_rdft_calc(RDFTContext *s, FFTSample *data) -{ - ff_rdft_calc_c(s, data); -} - av_cold void ff_rdft_end(RDFTContext *s) { ff_fft_end(&s->fft); -- cgit v1.2.3