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-rw-r--r--libavcodec/tests/fft.c261
1 files changed, 212 insertions, 49 deletions
diff --git a/libavcodec/tests/fft.c b/libavcodec/tests/fft.c
index db1ce9807f..83f2ff2a08 100644
--- a/libavcodec/tests/fft.c
+++ b/libavcodec/tests/fft.c
@@ -1,20 +1,20 @@
/*
* (c) 2002 Fabrice Bellard
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -25,6 +25,10 @@
#include "config.h"
+#ifndef AVFFT
+#define AVFFT 0
+#endif
+
#include <math.h>
#if HAVE_UNISTD_H
#include <unistd.h>
@@ -39,7 +43,12 @@
#include "libavutil/mathematics.h"
#include "libavutil/time.h"
+#if AVFFT
+#include "libavcodec/avfft.h"
+#else
#include "libavcodec/fft.h"
+#endif
+
#if FFT_FLOAT
#include "libavcodec/dct.h"
#include "libavcodec/rdft.h"
@@ -55,10 +64,14 @@
pim += (MUL16(are, bim) + MUL16(bre, aim)); \
}
-#if FFT_FLOAT
+#if FFT_FLOAT || AVFFT
#define RANGE 1.0
#define REF_SCALE(x, bits) (x)
#define FMT "%10.6f"
+#elif FFT_FIXED_32
+#define RANGE 8388608
+#define REF_SCALE(x, bits) (x)
+#define FMT "%6d"
#else
#define RANGE 16384
#define REF_SCALE(x, bits) ((x) / (1 << (bits)))
@@ -73,7 +86,7 @@ static int fft_ref_init(int nbits, int inverse)
{
int i, n = 1 << nbits;
- exptab = av_malloc((n / 2) * sizeof(*exptab));
+ exptab = av_malloc_array((n / 2), sizeof(*exptab));
if (!exptab)
return AVERROR(ENOMEM);
@@ -150,7 +163,7 @@ static void mdct_ref(FFTSample *output, FFTSample *input, int nbits)
#if FFT_FLOAT
#if CONFIG_DCT
-static void idct_ref(float *output, float *input, int nbits)
+static void idct_ref(FFTSample *output, FFTSample *input, int nbits)
{
int i, k, n = 1 << nbits;
@@ -165,7 +178,7 @@ static void idct_ref(float *output, float *input, int nbits)
}
}
-static void dct_ref(float *output, float *input, int nbits)
+static void dct_ref(FFTSample *output, FFTSample *input, int nbits)
{
int i, k, n = 1 << nbits;
@@ -203,10 +216,138 @@ static int check_diff(FFTSample *tab1, FFTSample *tab2, int n, double scale)
if (e > max)
max = e;
}
- av_log(NULL, AV_LOG_INFO, "max:%f e:%g\n", max, sqrt(error) / n);
+ av_log(NULL, AV_LOG_INFO, "max:%f e:%g\n", max, sqrt(error / n));
return err;
}
+static inline void fft_init(FFTContext **s, int nbits, int inverse)
+{
+#if AVFFT
+ *s = av_fft_init(nbits, inverse);
+#else
+ ff_fft_init(*s, nbits, inverse);
+#endif
+}
+
+static inline void mdct_init(FFTContext **s, int nbits, int inverse, double scale)
+{
+#if AVFFT
+ *s = av_mdct_init(nbits, inverse, scale);
+#else
+ ff_mdct_init(*s, nbits, inverse, scale);
+#endif
+}
+
+static inline void mdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input)
+{
+#if AVFFT
+ av_mdct_calc(s, output, input);
+#else
+ s->mdct_calc(s, output, input);
+#endif
+}
+
+static inline void imdct_calc(struct FFTContext *s, FFTSample *output, const FFTSample *input)
+{
+#if AVFFT
+ av_imdct_calc(s, output, input);
+#else
+ s->imdct_calc(s, output, input);
+#endif
+}
+
+static inline void fft_permute(FFTContext *s, FFTComplex *z)
+{
+#if AVFFT
+ av_fft_permute(s, z);
+#else
+ s->fft_permute(s, z);
+#endif
+}
+
+static inline void fft_calc(FFTContext *s, FFTComplex *z)
+{
+#if AVFFT
+ av_fft_calc(s, z);
+#else
+ s->fft_calc(s, z);
+#endif
+}
+
+static inline void mdct_end(FFTContext *s)
+{
+#if AVFFT
+ av_mdct_end(s);
+#else
+ ff_mdct_end(s);
+#endif
+}
+
+static inline void fft_end(FFTContext *s)
+{
+#if AVFFT
+ av_fft_end(s);
+#else
+ ff_fft_end(s);
+#endif
+}
+
+#if FFT_FLOAT
+static inline void rdft_init(RDFTContext **r, int nbits, enum RDFTransformType trans)
+{
+#if AVFFT
+ *r = av_rdft_init(nbits, trans);
+#else
+ ff_rdft_init(*r, nbits, trans);
+#endif
+}
+
+static inline void dct_init(DCTContext **d, int nbits, enum DCTTransformType trans)
+{
+#if AVFFT
+ *d = av_dct_init(nbits, trans);
+#else
+ ff_dct_init(*d, nbits, trans);
+#endif
+}
+
+static inline void rdft_calc(RDFTContext *r, FFTSample *tab)
+{
+#if AVFFT
+ av_rdft_calc(r, tab);
+#else
+ r->rdft_calc(r, tab);
+#endif
+}
+
+static inline void dct_calc(DCTContext *d, FFTSample *data)
+{
+#if AVFFT
+ av_dct_calc(d, data);
+#else
+ d->dct_calc(d, data);
+#endif
+}
+
+static inline void rdft_end(RDFTContext *r)
+{
+#if AVFFT
+ av_rdft_end(r);
+#else
+ ff_rdft_end(r);
+#endif
+}
+
+static inline void dct_end(DCTContext *d)
+{
+#if AVFFT
+ av_dct_end(d);
+#else
+ ff_dct_end(d);
+#endif
+}
+#endif /* FFT_FLOAT */
+
static void help(void)
{
av_log(NULL, AV_LOG_INFO,
@@ -237,10 +378,10 @@ int main(int argc, char **argv)
FFTComplex *tab, *tab1, *tab_ref;
FFTSample *tab2;
enum tf_transform transform = TRANSFORM_FFT;
- FFTContext m, s;
+ FFTContext *m, *s;
#if FFT_FLOAT
- RDFTContext r;
- DCTContext d;
+ RDFTContext *r;
+ DCTContext *d;
#endif /* FFT_FLOAT */
int it, i, err = 1;
int do_speed = 0, do_inverse = 0;
@@ -248,6 +389,16 @@ int main(int argc, char **argv)
double scale = 1.0;
AVLFG prng;
+#if !AVFFT
+ s = av_mallocz(sizeof(*s));
+ m = av_mallocz(sizeof(*m));
+#endif
+
+#if !AVFFT && FFT_FLOAT
+ r = av_mallocz(sizeof(*r));
+ d = av_mallocz(sizeof(*d));
+#endif
+
av_lfg_init(&prng, 1);
for (;;) {
@@ -281,20 +432,22 @@ int main(int argc, char **argv)
break;
case 'c':
{
- int cpuflags = av_parse_cpu_flags(optarg);
- if (cpuflags < 0)
+ unsigned cpuflags = av_get_cpu_flags();
+
+ if (av_parse_cpu_caps(&cpuflags, optarg) < 0)
return 1;
- av_set_cpu_flags_mask(cpuflags);
+
+ av_force_cpu_flags(cpuflags);
break;
}
}
}
fft_size = 1 << fft_nbits;
- tab = av_malloc(fft_size * sizeof(FFTComplex));
- tab1 = av_malloc(fft_size * sizeof(FFTComplex));
- tab_ref = av_malloc(fft_size * sizeof(FFTComplex));
- tab2 = av_malloc(fft_size * sizeof(FFTSample));
+ tab = av_malloc_array(fft_size, sizeof(FFTComplex));
+ tab1 = av_malloc_array(fft_size, sizeof(FFTComplex));
+ tab_ref = av_malloc_array(fft_size, sizeof(FFTComplex));
+ tab2 = av_malloc_array(fft_size, sizeof(FFTSample));
if (!(tab && tab1 && tab_ref && tab2))
goto cleanup;
@@ -307,7 +460,7 @@ int main(int argc, char **argv)
av_log(NULL, AV_LOG_INFO, "IMDCT");
else
av_log(NULL, AV_LOG_INFO, "MDCT");
- ff_mdct_init(&m, fft_nbits, do_inverse, scale);
+ mdct_init(&m, fft_nbits, do_inverse, scale);
break;
#endif /* CONFIG_MDCT */
case TRANSFORM_FFT:
@@ -315,31 +468,31 @@ int main(int argc, char **argv)
av_log(NULL, AV_LOG_INFO, "IFFT");
else
av_log(NULL, AV_LOG_INFO, "FFT");
- ff_fft_init(&s, fft_nbits, do_inverse);
- if (err = fft_ref_init(fft_nbits, do_inverse) < 0)
+ fft_init(&s, fft_nbits, do_inverse);
+ if ((err = fft_ref_init(fft_nbits, do_inverse)) < 0)
goto cleanup;
break;
#if FFT_FLOAT
-#if CONFIG_RDFT
+# if CONFIG_RDFT
case TRANSFORM_RDFT:
if (do_inverse)
av_log(NULL, AV_LOG_INFO, "IDFT_C2R");
else
av_log(NULL, AV_LOG_INFO, "DFT_R2C");
- ff_rdft_init(&r, fft_nbits, do_inverse ? IDFT_C2R : DFT_R2C);
- if (err = fft_ref_init(fft_nbits, do_inverse) < 0)
+ rdft_init(&r, fft_nbits, do_inverse ? IDFT_C2R : DFT_R2C);
+ if ((err = fft_ref_init(fft_nbits, do_inverse)) < 0)
goto cleanup;
break;
-#endif /* CONFIG_RDFT */
-#if CONFIG_DCT
+# endif /* CONFIG_RDFT */
+# if CONFIG_DCT
case TRANSFORM_DCT:
if (do_inverse)
av_log(NULL, AV_LOG_INFO, "DCT_III");
else
av_log(NULL, AV_LOG_INFO, "DCT_II");
- ff_dct_init(&d, fft_nbits, do_inverse ? DCT_III : DCT_II);
+ dct_init(&d, fft_nbits, do_inverse ? DCT_III : DCT_II);
break;
-#endif /* CONFIG_DCT */
+# endif /* CONFIG_DCT */
#endif /* FFT_FLOAT */
default:
av_log(NULL, AV_LOG_ERROR, "Requested transform not supported\n");
@@ -362,19 +515,19 @@ int main(int argc, char **argv)
case TRANSFORM_MDCT:
if (do_inverse) {
imdct_ref(&tab_ref->re, &tab1->re, fft_nbits);
- m.imdct_calc(&m, tab2, &tab1->re);
+ imdct_calc(m, tab2, &tab1->re);
err = check_diff(&tab_ref->re, tab2, fft_size, scale);
} else {
mdct_ref(&tab_ref->re, &tab1->re, fft_nbits);
- m.mdct_calc(&m, tab2, &tab1->re);
+ mdct_calc(m, tab2, &tab1->re);
err = check_diff(&tab_ref->re, tab2, fft_size / 2, scale);
}
break;
#endif /* CONFIG_MDCT */
case TRANSFORM_FFT:
memcpy(tab, tab1, fft_size * sizeof(FFTComplex));
- s.fft_permute(&s, tab);
- s.fft_calc(&s, tab);
+ fft_permute(s, tab);
+ fft_calc(s, tab);
fft_ref(tab_ref, tab1, fft_nbits);
err = check_diff(&tab_ref->re, &tab->re, fft_size * 2, 1.0);
@@ -395,7 +548,7 @@ int main(int argc, char **argv)
memcpy(tab2, tab1, fft_size * sizeof(FFTSample));
tab2[1] = tab1[fft_size_2].re;
- r.rdft_calc(&r, tab2);
+ rdft_calc(r, tab2);
fft_ref(tab_ref, tab1, fft_nbits);
for (i = 0; i < fft_size; i++) {
tab[i].re = tab2[i];
@@ -407,7 +560,7 @@ int main(int argc, char **argv)
tab2[i] = tab1[i].re;
tab1[i].im = 0;
}
- r.rdft_calc(&r, tab2);
+ rdft_calc(r, tab2);
fft_ref(tab_ref, tab1, fft_nbits);
tab_ref[0].im = tab_ref[fft_size_2].re;
err = check_diff(&tab_ref->re, tab2, fft_size, 1.0);
@@ -418,7 +571,7 @@ int main(int argc, char **argv)
#if CONFIG_DCT
case TRANSFORM_DCT:
memcpy(tab, tab1, fft_size * sizeof(FFTComplex));
- d.dct_calc(&d, &tab->re);
+ dct_calc(d, &tab->re);
if (do_inverse)
idct_ref(&tab_ref->re, &tab1->re, fft_nbits);
else
@@ -444,22 +597,22 @@ int main(int argc, char **argv)
switch (transform) {
case TRANSFORM_MDCT:
if (do_inverse)
- m.imdct_calc(&m, &tab->re, &tab1->re);
+ imdct_calc(m, &tab->re, &tab1->re);
else
- m.mdct_calc(&m, &tab->re, &tab1->re);
+ mdct_calc(m, &tab->re, &tab1->re);
break;
case TRANSFORM_FFT:
memcpy(tab, tab1, fft_size * sizeof(FFTComplex));
- s.fft_calc(&s, tab);
+ fft_calc(s, tab);
break;
#if FFT_FLOAT
case TRANSFORM_RDFT:
memcpy(tab2, tab1, fft_size * sizeof(FFTSample));
- r.rdft_calc(&r, tab2);
+ rdft_calc(r, tab2);
break;
case TRANSFORM_DCT:
memcpy(tab2, tab1, fft_size * sizeof(FFTSample));
- d.dct_calc(&d, tab2);
+ dct_calc(d, tab2);
break;
#endif /* FFT_FLOAT */
}
@@ -479,23 +632,23 @@ int main(int argc, char **argv)
switch (transform) {
#if CONFIG_MDCT
case TRANSFORM_MDCT:
- ff_mdct_end(&m);
+ mdct_end(m);
break;
#endif /* CONFIG_MDCT */
case TRANSFORM_FFT:
- ff_fft_end(&s);
+ fft_end(s);
break;
#if FFT_FLOAT
-#if CONFIG_RDFT
+# if CONFIG_RDFT
case TRANSFORM_RDFT:
- ff_rdft_end(&r);
+ rdft_end(r);
break;
-#endif /* CONFIG_RDFT */
-#if CONFIG_DCT
+# endif /* CONFIG_RDFT */
+# if CONFIG_DCT
case TRANSFORM_DCT:
- ff_dct_end(&d);
+ dct_end(d);
break;
-#endif /* CONFIG_DCT */
+# endif /* CONFIG_DCT */
#endif /* FFT_FLOAT */
}
@@ -506,6 +659,16 @@ cleanup:
av_free(tab_ref);
av_free(exptab);
+#if !AVFFT
+ av_free(s);
+ av_free(m);
+#endif
+
+#if !AVFFT && FFT_FLOAT
+ av_free(r);
+ av_free(d);
+#endif
+
if (err)
printf("Error: %d.\n", err);
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-14 20:34:16 +0000