Not hooked up to FATE due to fear of random failures due to float
instability.
float_dsp-test: use 16 * 3 * 5 as length
---
libavutil/Makefile | 1 +
libavutil/float_dsp.c | 274 ++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 275 insertions(+)
diff --git a/libavutil/Makefile b/libavutil/Makefile
index f663f18..5869e67 100644
--- a/libavutil/Makefile
+++ b/libavutil/Makefile
@@ -122,6 +122,7 @@ TESTPROGS = adler32
\
des \
eval \
fifo \
+ float_dsp \
hmac \
lfg \
lls \
diff --git a/libavutil/float_dsp.c b/libavutil/float_dsp.c
index 3707e06..22c3c15 100644
--- a/libavutil/float_dsp.c
+++ b/libavutil/float_dsp.c
@@ -132,3 +132,277 @@ av_cold void avpriv_float_dsp_init(AVFloatDSPContext
*fdsp, int bit_exact)
ff_float_dsp_init_x86(fdsp);
#endif
}
+
+#ifdef TEST
+
+#include <float.h>
+#include <math.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "cpu.h"
+#include "lfg.h"
+#include "log.h"
+#include "mem.h"
+#include "random_seed.h"
+
+#define LEN 240
+
+static void fill_float_array(AVLFG *lfg, float *a, int len)
+{
+ int i;
+ double bmg[2], stddev = 10.0, mean = 0.0;
+
+ for (i = 0; i < len; i += 2) {
+ av_bmg_get(lfg, bmg);
+ a[i] = bmg[0] * stddev + mean;
+ a[i + 1] = bmg[1] * stddev + mean;
+ }
+}
+static int compare_floats(const float *a, const float *b, int len,
+ float max_diff)
+{
+ int i;
+ for (i = 0; i < len; i++) {
+ if (fabsf(a[i] - b[i]) > max_diff) {
+ av_log(NULL, AV_LOG_ERROR, "%d: %- .12f - %- .12f = % .12g\n",
+ i, a[i], b[i], a[i] - b[i]);
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static void fill_double_array(AVLFG *lfg, double *a, int len)
+{
+ int i;
+ double bmg[2], stddev = 10.0, mean = 0.0;
+
+ for (i = 0; i < len; i += 2) {
+ av_bmg_get(lfg, bmg);
+ a[i] = bmg[0] * stddev + mean;
+ a[i + 1] = bmg[1] * stddev + mean;
+ }
+}
+
+static int compare_doubles(const double *a, const double *b, int len,
+ double max_diff)
+{
+ int i;
+
+ for (i = 0; i < len; i++) {
+ if (fabs(a[i] - b[i]) > max_diff) {
+ av_log(NULL, AV_LOG_ERROR, "%d: %- .12f - %- .12f = % .12g\n",
+ i, a[i], b[i], a[i] - b[i]);
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static int test_vector_fmul(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp,
+ const float *v1, const float *v2)
+{
+ DECLARE_ALIGNED(32, float, cdst)[LEN];
+ DECLARE_ALIGNED(32, float, odst)[LEN];
+ int ret;
+
+ cdsp->vector_fmul(cdst, v1, v2, LEN);
+ fdsp->vector_fmul(odst, v1, v2, LEN);
+
+ if (ret = compare_floats(cdst, odst, LEN, FLT_EPSILON))
+ av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__);
+
+ return ret;
+}
+
+static int test_vector_fmac_scalar(AVFloatDSPContext *fdsp, AVFloatDSPContext
*cdsp,
+ const float *v1, const float *src0, float
scale)
+{
+ DECLARE_ALIGNED(32, float, cdst)[LEN];
+ DECLARE_ALIGNED(32, float, odst)[LEN];
+ int ret;
+
+ memcpy(cdst, v1, LEN * sizeof(*v1));
+ memcpy(odst, v1, LEN * sizeof(*v1));
+
+ cdsp->vector_fmac_scalar(cdst, src0, scale, LEN);
+ fdsp->vector_fmac_scalar(odst, src0, scale, LEN);
+
+ if (ret = compare_floats(cdst, odst, LEN, 0.005))
+ av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__);
+
+ return ret;
+}
+
+static int test_vector_fmul_scalar(AVFloatDSPContext *fdsp, AVFloatDSPContext
*cdsp,
+ const float *v1, float scale)
+{
+ DECLARE_ALIGNED(32, float, cdst)[LEN];
+ DECLARE_ALIGNED(32, float, odst)[LEN];
+ int ret;
+
+ cdsp->vector_fmul_scalar(cdst, v1, scale, LEN);
+ fdsp->vector_fmul_scalar(odst, v1, scale, LEN);
+
+ if (ret = compare_floats(cdst, odst, LEN, FLT_EPSILON))
+ av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__);
+
+ return ret;
+}
+
+static int test_vector_dmul_scalar(AVFloatDSPContext *fdsp, AVFloatDSPContext
*cdsp,
+ const double *v1, double scale)
+{
+ DECLARE_ALIGNED(32, double, cdst)[LEN];
+ DECLARE_ALIGNED(32, double, odst)[LEN];
+ int ret;
+
+ cdsp->vector_dmul_scalar(cdst, v1, scale, LEN);
+ fdsp->vector_dmul_scalar(odst, v1, scale, LEN);
+
+ if (ret = compare_doubles(cdst, odst, LEN, DBL_EPSILON))
+ av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__);
+
+ return ret;
+}
+
+
+static int test_vector_fmul_window(AVFloatDSPContext *fdsp, AVFloatDSPContext
*cdsp,
+ const float *v1, const float *v2, const
float *v3)
+{
+ DECLARE_ALIGNED(32, float, cdst)[LEN];
+ DECLARE_ALIGNED(32, float, odst)[LEN];
+ int ret;
+
+ cdsp->vector_fmul_window(cdst, v1, v2, v3, LEN / 2);
+ fdsp->vector_fmul_window(odst, v1, v2, v3, LEN / 2);
+
+ if (ret = compare_floats(cdst, odst, LEN, 0.008))
+ av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__);
+
+ return ret;
+}
+
+static int test_vector_fmul_add(AVFloatDSPContext *fdsp, AVFloatDSPContext
*cdsp,
+ const float *v1, const float *v2, const float
*v3)
+{
+ DECLARE_ALIGNED(32, float, cdst)[LEN];
+ DECLARE_ALIGNED(32, float, odst)[LEN];
+ int ret;
+
+ cdsp->vector_fmul_add(cdst, v1, v2, v3, LEN);
+ fdsp->vector_fmul_add(odst, v1, v2, v3, LEN);
+
+ if (ret = compare_floats(cdst, odst, LEN, 0.005))
+ av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__);
+
+ return ret;
+}
+
+static int test_vector_fmul_reverse(AVFloatDSPContext *fdsp, AVFloatDSPContext
*cdsp,
+ const float *v1, const float *v2)
+{
+ DECLARE_ALIGNED(32, float, cdst)[LEN];
+ DECLARE_ALIGNED(32, float, odst)[LEN];
+ int ret;
+
+ cdsp->vector_fmul_reverse(cdst, v1, v2, LEN);
+ fdsp->vector_fmul_reverse(odst, v1, v2, LEN);
+
+ if (ret = compare_floats(cdst, odst, LEN, FLT_EPSILON))
+ av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__);
+
+ return ret;
+}
+
+static int test_butterflies_float(AVFloatDSPContext *fdsp, AVFloatDSPContext
*cdsp,
+ const float *v1, const float *v2)
+{
+ DECLARE_ALIGNED(32, float, cv1)[LEN];
+ DECLARE_ALIGNED(32, float, cv2)[LEN];
+ DECLARE_ALIGNED(32, float, ov1)[LEN];
+ DECLARE_ALIGNED(32, float, ov2)[LEN];
+ int ret;
+
+ memcpy(cv1, v1, LEN * sizeof(*v1));
+ memcpy(cv2, v2, LEN * sizeof(*v2));
+ memcpy(ov1, v1, LEN * sizeof(*v1));
+ memcpy(ov2, v2, LEN * sizeof(*v2));
+
+ cdsp->butterflies_float(cv1, cv2, LEN);
+ fdsp->butterflies_float(ov1, ov2, LEN);
+
+ if ((ret = compare_floats(cv1, ov1, LEN, FLT_EPSILON)) ||
+ (ret = compare_floats(cv2, ov2, LEN, FLT_EPSILON)))
+ av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__);
+
+ return ret;
+}
+
+static int test_scalarproduct_float(AVFloatDSPContext *fdsp, AVFloatDSPContext
*cdsp,
+ const float *v1, const float *v2)
+{
+ float cprod, oprod;
+ int ret;
+
+ cprod = cdsp->scalarproduct_float(v1, v2, LEN);
+ oprod = fdsp->scalarproduct_float(v1, v2, LEN);
+
+ if (ret = compare_floats(&cprod, &oprod, 1, 0.2))
+ av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__);
+
+ return ret;
+}
+
+int main(void)
+{
+ int ret = 0;
+ uint32_t seed = av_get_random_seed();
+ AVFloatDSPContext fdsp, cdsp;
+ AVLFG lfg;
+
+ DECLARE_ALIGNED(32, float, src0)[LEN];
+ DECLARE_ALIGNED(32, float, src1)[LEN];
+ DECLARE_ALIGNED(32, float, src2)[LEN];
+ DECLARE_ALIGNED(32, double, dbl_src0)[LEN];
+ DECLARE_ALIGNED(32, double, dbl_src1)[LEN];
+
+ av_log(NULL, AV_LOG_INFO, "float_dsp-test: random seed %u\n", seed);
+
+ av_lfg_init(&lfg, seed);
+
+ fill_float_array(&lfg, src0, LEN);
+ fill_float_array(&lfg, src1, LEN);
+ fill_float_array(&lfg, src2, LEN);
+
+ fill_double_array(&lfg, dbl_src0, LEN);
+ fill_double_array(&lfg, dbl_src1, LEN);
+
+ avpriv_float_dsp_init(&fdsp, 1);
+ av_set_cpu_flags_mask(0);
+ avpriv_float_dsp_init(&cdsp, 1);
+
+ if (test_vector_fmul(&fdsp, &cdsp, src0, src1))
+ ret -= 1 << 0;
+ if (test_vector_fmac_scalar(&fdsp, &cdsp, src2, src0, src1[0]))
+ ret -= 1 << 1;
+ if (test_vector_fmul_scalar(&fdsp, &cdsp, src0, src1[0]))
+ ret -= 1 << 2;
+ if (test_vector_fmul_window(&fdsp, &cdsp, src0, src1, src2))
+ ret -= 1 << 3;
+ if (test_vector_fmul_add(&fdsp, &cdsp, src0, src1, src2))
+ ret -= 1 << 4;
+ if (test_vector_fmul_reverse(&fdsp, &cdsp, src0, src1))
+ ret -= 1 << 5;
+ if (test_butterflies_float(&fdsp, &cdsp, src0, src1))
+ ret -= 1 << 6;
+ if (test_scalarproduct_float(&fdsp, &cdsp, src0, src1))
+ ret -= 1 << 7;
+ if (test_vector_dmul_scalar(&fdsp, &cdsp, dbl_src0, dbl_src1[0]))
+ ret -= 1 << 8;
+
+ return ret;
+}
+
+#endif /* TEST */
--
1.9.0
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