cras: dsp: Add eq test to dsp_benchmark

Add eq benchmark test for the following efficiency validating of the
eq.c porting

BUG=b:352433455
TEST=bazel test //...

Change-Id: Ie68cb3ac8ba670aaf6741566c89f7bb114cd269b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/adhd/+/5706729
Reviewed-by: Li-Yu Yu <[email protected]>
Tested-by: [email protected] <[email protected]>
Commit-Queue: Nathan Lee <[email protected]>

Author: Nathan Lee

cras/benchmark/BUILD.bazel

@@ -32,6 +32,7 @@ cc_library(
         ":benchmark_util",
         "//cras/src/dsp:drc",
         "//cras/src/dsp:dsp_util",
+        "//cras/src/dsp:eq",
         "//cras/src/dsp:eq2",
         "//cras/src/server:cras_mix",
         "@com_github_google_benchmark//:benchmark",

cras/benchmark/dsp_benchmark.cc

@@ -10,7 +10,9 @@
 #include "cras/benchmark/benchmark_util.hh"
 #include "cras/src/dsp/biquad.h"
 #include "cras/src/dsp/drc.h"
+#include "cras/src/dsp/eq.h"
 #include "cras/src/dsp/eq2.h"
+#include "cras/src/dsp/rust/dsp.h"
 
 namespace {
 
@@ -33,6 +35,29 @@ class BM_Dsp : public benchmark::Fixture {
   std::vector<float> samples;
 };
 
+BENCHMARK_DEFINE_F(BM_Dsp, Eq)(benchmark::State& state) {
+  const double NQ = 44100 / 2;  // nyquist frequency
+  // eq chain
+  struct eq* eq = eq_new();
+  eq_append_biquad(eq, BQ_PEAKING, 380 / NQ, 3, -10);
+  eq_append_biquad(eq, BQ_PEAKING, 720 / NQ, 3, -12);
+  eq_append_biquad(eq, BQ_PEAKING, 1705 / NQ, 3, -8);
+  eq_append_biquad(eq, BQ_HIGHPASS, 218 / NQ, 0.7, -10.2);
+  eq_append_biquad(eq, BQ_PEAKING, 580 / NQ, 6, -8);
+  eq_append_biquad(eq, BQ_HIGHSHELF, 8000 / NQ, 3, 2);
+  for (auto _ : state) {
+    eq_process(eq, samples.data(), frames);
+  }
+  eq_free(eq);
+  state.counters["frames_per_second"] = benchmark::Counter(
+      int64_t(state.iterations()) * frames, benchmark::Counter::kIsRate);
+  state.counters["time_per_48k_frames"] = benchmark::Counter(
+      int64_t(state.iterations()) * frames / 48000,
+      benchmark::Counter::kIsRate | benchmark::Counter::kInvert);
+}
+
+BENCHMARK_REGISTER_F(BM_Dsp, Eq)->RangeMultiplier(2)->Range(256, 8 << 10);
+
 BENCHMARK_DEFINE_F(BM_Dsp, Eq2)(benchmark::State& state) {
   const double NQ = 44100 / 2;  // nyquist frequency
   // eq chain

cras/src/dsp/BUILD.bazel

@@ -64,6 +64,7 @@ cc_library(
     name = "eq",
     srcs = ["eq.c"],
     hdrs = ["eq.h"],
+    visibility = ["//cras/benchmark:__pkg__"],
     deps = [
         ":biquad",
         "@thesofproject_sof",