diff options
Diffstat (limited to 'chromium/third_party/webrtc/modules/audio_coding/neteq4/delay_peak_detector_unittest.cc')
-rw-r--r-- | chromium/third_party/webrtc/modules/audio_coding/neteq4/delay_peak_detector_unittest.cc | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/chromium/third_party/webrtc/modules/audio_coding/neteq4/delay_peak_detector_unittest.cc b/chromium/third_party/webrtc/modules/audio_coding/neteq4/delay_peak_detector_unittest.cc deleted file mode 100644 index a3b48209cff..00000000000 --- a/chromium/third_party/webrtc/modules/audio_coding/neteq4/delay_peak_detector_unittest.cc +++ /dev/null @@ -1,121 +0,0 @@ -/* - * Copyright (c) 2012 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. - */ - -// Unit tests for DelayPeakDetector class. - -#include "webrtc/modules/audio_coding/neteq4/delay_peak_detector.h" - -#include "gtest/gtest.h" - -namespace webrtc { - -TEST(DelayPeakDetector, CreateAndDestroy) { - DelayPeakDetector* detector = new DelayPeakDetector(); - EXPECT_FALSE(detector->peak_found()); - delete detector; -} - -TEST(DelayPeakDetector, EmptyHistory) { - DelayPeakDetector detector; - EXPECT_EQ(-1, detector.MaxPeakHeight()); - EXPECT_EQ(-1, detector.MaxPeakPeriod()); -} - -// Inject a series of packet arrivals into the detector. Three of the packets -// have suffered delays. After the third delay peak, peak-mode is expected to -// start. This should then continue until it is disengaged due to lack of peaks. -TEST(DelayPeakDetector, TriggerPeakMode) { - DelayPeakDetector detector; - const int kPacketSizeMs = 30; - detector.SetPacketAudioLength(kPacketSizeMs); - - // Load up normal arrival times; 0 ms, 30 ms, 60 ms, 90 ms, ... - const int kNumPackets = 1000; - int arrival_times_ms[kNumPackets]; - for (int i = 0; i < kNumPackets; ++i) { - arrival_times_ms[i] = i * kPacketSizeMs; - } - - // Delay three packets. - const int kPeakDelayMs = 100; - // First delay peak. - arrival_times_ms[100] += kPeakDelayMs; - // Second delay peak. - arrival_times_ms[200] += kPeakDelayMs; - // Third delay peak. Trigger peak-mode after this packet. - arrival_times_ms[400] += kPeakDelayMs; - // The second peak period is the longest, 200 packets. - const int kWorstPeakPeriod = 200 * kPacketSizeMs; - int peak_mode_start_ms = arrival_times_ms[400]; - // Expect to disengage after no peaks are observed for two period times. - int peak_mode_end_ms = peak_mode_start_ms + 2 * kWorstPeakPeriod; - - // Load into detector. - int time = 0; - int next = 1; // Start with the second packet to get a proper IAT. - while (next < kNumPackets) { - while (next < kNumPackets && arrival_times_ms[next] <= time) { - int iat_packets = (arrival_times_ms[next] - arrival_times_ms[next - 1]) / - kPacketSizeMs; - const int kTargetBufferLevel = 1; // Define peaks to be iat > 2. - if (time < peak_mode_start_ms || time > peak_mode_end_ms) { - EXPECT_FALSE(detector.Update(iat_packets, kTargetBufferLevel)); - } else { - EXPECT_TRUE(detector.Update(iat_packets, kTargetBufferLevel)); - EXPECT_EQ(kWorstPeakPeriod, detector.MaxPeakPeriod()); - EXPECT_EQ(kPeakDelayMs / kPacketSizeMs + 1, detector.MaxPeakHeight()); - } - ++next; - } - detector.IncrementCounter(10); - time += 10; // Increase time 10 ms. - } -} - -// Same test as TriggerPeakMode, but with base target buffer level increased to -// 2, in order to raise the bar for delay peaks to inter-arrival times > 4. -// The delay pattern has peaks with delay = 3, thus should not trigger. -TEST(DelayPeakDetector, DoNotTriggerPeakMode) { - DelayPeakDetector detector; - const int kPacketSizeMs = 30; - detector.SetPacketAudioLength(kPacketSizeMs); - - // Load up normal arrival times; 0 ms, 30 ms, 60 ms, 90 ms, ... - const int kNumPackets = 1000; - int arrival_times_ms[kNumPackets]; - for (int i = 0; i < kNumPackets; ++i) { - arrival_times_ms[i] = i * kPacketSizeMs; - } - - // Delay three packets. - const int kPeakDelayMs = 100; - // First delay peak. - arrival_times_ms[100] += kPeakDelayMs; - // Second delay peak. - arrival_times_ms[200] += kPeakDelayMs; - // Third delay peak. - arrival_times_ms[400] += kPeakDelayMs; - - // Load into detector. - int time = 0; - int next = 1; // Start with the second packet to get a proper IAT. - while (next < kNumPackets) { - while (next < kNumPackets && arrival_times_ms[next] <= time) { - int iat_packets = (arrival_times_ms[next] - arrival_times_ms[next - 1]) / - kPacketSizeMs; - const int kTargetBufferLevel = 2; // Define peaks to be iat > 4. - EXPECT_FALSE(detector.Update(iat_packets, kTargetBufferLevel)); - ++next; - } - detector.IncrementCounter(10); - time += 10; // Increase time 10 ms. - } -} -} // namespace webrtc |