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Call DCT by function pointer. Needed for any future ASM implementation and

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allows further cleanup.

Originally committed as revision 22617 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2010-03-21 11:31:11 +00:00
parent 89d7df7c74
commit e30ab38e94
2 changed files with 4 additions and 1 deletions
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4
libavcodec/dct.c
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@ -105,7 +105,7 @@ static void ff_dct_calc_c(DCTContext *ctx, FFTSample *data)
void ff_dct_calc(DCTContext *s, FFTSample *data) void ff_dct_calc(DCTContext *s, FFTSample *data)
{ {
ff_dct_calc_c(s, data); s->dct_calc(s, data);
} }
av_cold int ff_dct_init(DCTContext *s, int nbits, int inverse) av_cold int ff_dct_init(DCTContext *s, int nbits, int inverse)
@ -130,6 +130,8 @@ av_cold int ff_dct_init(DCTContext *s, int nbits, int inverse)
for (i = 0; i < n/2; i++) for (i = 0; i < n/2; i++)
s->csc2[i] = 0.5 / sin((M_PI / (2*n) * (2*i + 1))); s->csc2[i] = 0.5 / sin((M_PI / (2*n) * (2*i + 1)));
s->dct_calc = ff_dct_calc_c;
return 0; return 0;
} }

1
libavcodec/fft.h
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@ -220,6 +220,7 @@ struct DCTContext {
RDFTContext rdft; RDFTContext rdft;
const float *costab; const float *costab;
FFTSample *csc2; FFTSample *csc2;
void (*dct_calc)(struct DCTContext *s, FFTSample *data);
}; };
/** /**