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Make synth_filter a function pointer 

Originally committed as revision 22827 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2010-04-10 16:27:53 +00:00
parent 38d52f3ea3
commit f462ed1f82
3 changed files with 20 additions and 6 deletions
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4
libavcodec/dca.c
View File

@ -253,6 +253,7 @@ typedef struct {
int debug_flag; ///< used for suppressing repeated error messages output
DSPContext dsp;
FFTContext imdct;
SynthFilterContext synth;
} DCAContext;
static const uint16_t dca_vlc_offs[] = {
@ -775,7 +776,7 @@ static void qmf_32_subbands(DCAContext * s, int chans,
for (; i < 32; i++)
s->raXin[i] = 0.0;
ff_synth_filter_float(&s->imdct,
s->synth.synth_filter_float(&s->imdct,
s->subband_fir_hist[chans], &s->hist_index[chans],
s->subband_fir_noidea[chans], prCoeff,
samples_out, s->raXin, scale, bias);
@ -1298,6 +1299,7 @@ static av_cold int dca_decode_init(AVCodecContext * avctx)
dsputil_init(&s->dsp, avctx);
ff_mdct_init(&s->imdct, 6, 1, 1.0);
ff_synth_filter_init(&s->synth);
for(i = 0; i < 6; i++)
s->samples_chanptr[i] = s->samples + i * 256;

9
libavcodec/synth_filter.c
View File

@ -21,7 +21,7 @@
#include "fft.h"
#include "synth_filter.h"
void ff_synth_filter_float(FFTContext *imdct,
static void synth_filter_float(FFTContext *imdct,
float *synth_buf_ptr, int *synth_buf_offset,
float synth_buf2[32], const float window[512],
float out[32], const float in[32], float scale, float bias)
@ -55,3 +55,10 @@ void ff_synth_filter_float(FFTContext *imdct,
}
*synth_buf_offset= (*synth_buf_offset - 32)&511;
}
av_cold void ff_synth_filter_init(SynthFilterContext *c)
{
c->synth_filter_float = synth_filter_float;
if (ARCH_ARM) ff_synth_filter_init_arm(c);
}

13
libavcodec/synth_filter.h
View File

@ -23,9 +23,14 @@
#include "fft.h"
void ff_synth_filter_float(FFTContext *imdct,
float *synth_buf_ptr, int *synth_buf_offset,
float synth_buf2[32], const float window[512],
float out[32], const float in[32], float scale, float bias);
typedef struct SynthFilterContext {
void (*synth_filter_float)(FFTContext *imdct,
float *synth_buf_ptr, int *synth_buf_offset,
float synth_buf2[32], const float window[512],
float out[32], const float in[32],
float scale, float bias);
} SynthFilterContext;
void ff_synth_filter_init(SynthFilterContext *c);
#endif /* AVCODEC_SYNTH_FILTER_H */