# Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
#
# Use of this source code is governed by a BSD-style license
# that can be found in the LICENSE file in the root of the source
# tree. An additional intellectual property rights grant can be found
# in the file PATENTS.  All contributing project authors may
# be found in the AUTHORS file in the root of the source tree.

import("../../../webrtc.gni")

rtc_library("cascaded_biquad_filter") {
  sources = [
    "cascaded_biquad_filter.cc",
    "cascaded_biquad_filter.h",
  ]
  deps = [
    "../../../api:array_view",
    "../../../rtc_base:checks",
  ]
}

rtc_library("legacy_delay_estimator") {
  sources = [
    "delay_estimator.cc",
    "delay_estimator.h",
    "delay_estimator_internal.h",
    "delay_estimator_wrapper.cc",
    "delay_estimator_wrapper.h",
  ]
  deps = [ "../../../rtc_base:checks" ]
}

rtc_library("ooura_fft") {
  sources = [
    "ooura_fft.cc",
    "ooura_fft.h",
    "ooura_fft_tables_common.h",
  ]
  deps = [
    "../../../rtc_base/system:arch",
    "../../../system_wrappers:cpu_features_api",
  ]
  cflags = []

  if (current_cpu == "x86" || current_cpu == "x64") {
    sources += [
      "ooura_fft_sse2.cc",
      "ooura_fft_tables_neon_sse2.h",
    ]
    if (is_posix || is_fuchsia) {
      cflags += [ "-msse2" ]
    }
  }

  if (rtc_build_with_neon) {
    sources += [
      "ooura_fft_neon.cc",
      "ooura_fft_tables_neon_sse2.h",
    ]

    deps += [ "../../../common_audio" ]

    if (current_cpu != "arm64") {
      # Enable compilation for the NEON instruction set.
      suppressed_configs += [ "//build/config/compiler:compiler_arm_fpu" ]
      cflags += [ "-mfpu=neon" ]
    }
  }

  if (current_cpu == "mipsel" && mips_float_abi == "hard") {
    sources += [ "ooura_fft_mips.cc" ]
  }
}

rtc_library("pffft_wrapper") {
  visibility = [ "../*" ]
  sources = [
    "pffft_wrapper.cc",
    "pffft_wrapper.h",
  ]
  deps = [
    "../../../api:array_view",
    "../../../rtc_base:checks",
    "//third_party/pffft",
  ]
}

if (rtc_include_tests) {
  rtc_library("cascaded_biquad_filter_unittest") {
    testonly = true

    sources = [ "cascaded_biquad_filter_unittest.cc" ]
    deps = [
      ":cascaded_biquad_filter",
      "../../../rtc_base:rtc_base_approved",
      "../../../test:test_support",
      "//testing/gtest",
    ]
  }

  rtc_library("legacy_delay_estimator_unittest") {
    testonly = true

    sources = [ "delay_estimator_unittest.cc" ]
    deps = [
      ":legacy_delay_estimator",
      "../../../rtc_base:rtc_base_approved",
      "../../../test:test_support",
      "//testing/gtest",
    ]
  }

  rtc_library("pffft_wrapper_unittest") {
    testonly = true
    sources = [ "pffft_wrapper_unittest.cc" ]
    deps = [
      ":pffft_wrapper",
      "../../../test:test_support",
      "//testing/gtest",
      "//third_party/pffft",
    ]
  }
}