# Copyright (c) 2025 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("default_video_jitter_timing") {
  visibility = [
    ":*",
    "../../modules/video_coding/timing:timing_module",
    "../../modules/video_coding/timing:timing_unittests",
  ]
  sources = [
    "default_video_jitter_timing.cc",
    "default_video_jitter_timing.h",
  ]
  deps = [
    ":inter_frame_delay_variation_calculator",
    ":jitter_estimator",
    ":timestamp_extrapolator",
    "../../api:field_trials_view",
    "../../api/environment",
    "../../api/units:time_delta",
    "../../api/units:timestamp",
    "../../api/video/timing:video_jitter_timing_interface",
    "../../system_wrappers",
  ]
}

rtc_library("frame_delay_variation_kalman_filter") {
  visibility = [ ":*" ]
  sources = [
    "frame_delay_variation_kalman_filter.cc",
    "frame_delay_variation_kalman_filter.h",
  ]
  deps = [ "../../rtc_base:checks" ]
}

rtc_library("inter_frame_delay_variation_calculator") {
  visibility = [ ":*" ]
  sources = [
    "inter_frame_delay_variation_calculator.cc",
    "inter_frame_delay_variation_calculator.h",
  ]
  deps = [
    "../../api/units:frequency",
    "../../api/units:time_delta",
    "../../api/units:timestamp",
    "../../modules:module_api_public",
    "../../rtc_base:rtc_numerics",
  ]
}

rtc_library("jitter_estimator") {
  visibility = [ ":*" ]
  sources = [
    "jitter_estimator.cc",
    "jitter_estimator.h",
  ]
  deps = [
    ":frame_delay_variation_kalman_filter",
    ":rtt_filter",
    "../../api:field_trials_view",
    "../../api/units:data_size",
    "../../api/units:frequency",
    "../../api/units:time_delta",
    "../../api/units:timestamp",
    "../../rtc_base:checks",
    "../../rtc_base:logging",
    "../../rtc_base:rolling_accumulator",
    "../../rtc_base:rtc_numerics",
    "../../rtc_base/experiments:field_trial_parser",
    "../../system_wrappers",
    "//third_party/abseil-cpp/absl/strings:string_view",
  ]
}

rtc_library("rtt_filter") {
  visibility = [ ":*" ]
  sources = [
    "rtt_filter.cc",
    "rtt_filter.h",
  ]
  deps = [
    "../../api/units:time_delta",
    "../../rtc_base:checks",
    "//third_party/abseil-cpp/absl/algorithm:container",
    "//third_party/abseil-cpp/absl/container:inlined_vector",
  ]
}

rtc_library("timestamp_extrapolator") {
  visibility = [ ":*" ]
  sources = [
    "timestamp_extrapolator.cc",
    "timestamp_extrapolator.h",
  ]
  deps = [
    "../../api:field_trials_view",
    "../../api/units:time_delta",
    "../../api/units:timestamp",
    "../../rtc_base:logging",
    "../../rtc_base:rtc_numerics",
    "../../rtc_base/experiments:field_trial_parser",
    "../../system_wrappers:metrics",
    "//third_party/abseil-cpp/absl/strings:string_view",
  ]
}

if (rtc_include_tests) {
  rtc_library("video_timing_unittests") {
    testonly = true
    sources = [
      "default_video_jitter_timing_unittest.cc",
      "frame_delay_variation_kalman_filter_unittest.cc",
      "inter_frame_delay_variation_calculator_unittest.cc",
      "jitter_estimator_unittest.cc",
      "rtt_filter_unittest.cc",
      "timestamp_extrapolator_unittest.cc",
    ]
    deps = [
      ":default_video_jitter_timing",
      ":frame_delay_variation_kalman_filter",
      ":inter_frame_delay_variation_calculator",
      ":jitter_estimator",
      ":rtt_filter",
      ":timestamp_extrapolator",
      "../../api:field_trials",
      "../../api/environment",
      "../../api/units:data_size",
      "../../api/units:frequency",
      "../../api/units:time_delta",
      "../../api/units:timestamp",
      "../../api/video/timing:video_jitter_timing_interface",
      "../../rtc_base:histogram_percentile_counter",
      "../../system_wrappers",
      "../../system_wrappers:metrics",
      "../../test:create_test_environment",
      "../../test:create_test_field_trials",
      "../../test:test_support",
    ]
  }

  rtc_test("video_timing_tests") {
    testonly = true
    deps = [ ":video_timing_unittests" ]

    if (rtc_enable_protobuf) {
      deps += [
        "simulator:simulator_tests",
        "simulator/test:test_tests",
      ]
    }
  }
}