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Cleanup expired field trial WebRTC-VoIPChannelRemixingAdjustmentKillSwitch

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Bug: chromium:40108588
Change-Id: Ifc334819dd486ac791b5d04faa6d6bd77a481dd7
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/349644
Reviewed-by: Per Åhgren <peah@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42668}
This commit is contained in:
Danil Chapovalov 2024-07-19 11:59:19 +02:00 committed by WebRTC LUCI CQ
parent 35f10a083d
commit f065ff85e2
5 changed files with 6 additions and 115 deletions
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2
audio/utility/BUILD.gn
View File

@ -29,7 +29,6 @@ rtc_library("audio_frame_operations") {
"../../rtc_base:checks",
"../../rtc_base:logging",
"../../rtc_base:safe_conversions",
"../../system_wrappers:field_trial",
"//third_party/abseil-cpp/absl/base:core_headers",
]
}
@ -49,7 +48,6 @@ if (rtc_include_tests) {
"../../rtc_base:logging",
"../../rtc_base:macromagic",
"../../rtc_base:stringutils",
"../../test:field_trial",
"../../test:test_support",
"//testing/gtest",
]

14
audio/utility/channel_mixing_matrix.cc
View File

@ -17,18 +17,11 @@
#include "audio/utility/channel_mixer.h"
#include "rtc_base/checks.h"
#include "rtc_base/logging.h"
#include "system_wrappers/include/field_trial.h"
namespace webrtc {
namespace {
// Selects the default usage of VoIP channel mapping adjustments.
bool UseChannelMappingAdjustmentsByDefault() {
return !field_trial::IsEnabled(
"WebRTC-VoIPChannelRemixingAdjustmentKillSwitch");
}
ChannelLayout CheckInputLayout(ChannelLayout input_layout,
ChannelLayout output_layout) {
// Special case for 5.0, 5.1 with back channels when upmixed to 7.0, 7.1,
@ -81,9 +74,7 @@ ChannelMixingMatrix::ChannelMixingMatrix(ChannelLayout input_layout,
int input_channels,
ChannelLayout output_layout,
int output_channels)
: use_voip_channel_mapping_adjustments_(
UseChannelMappingAdjustmentsByDefault()),
input_layout_(CheckInputLayout(input_layout, output_layout)),
: input_layout_(CheckInputLayout(input_layout, output_layout)),
input_channels_(input_channels),
output_layout_(output_layout),
output_channels_(output_channels) {
@ -123,8 +114,7 @@ bool ChannelMixingMatrix::CreateTransformationMatrix(
}
// If specified, use adjusted channel mapping for the VoIP scenario.
if (use_voip_channel_mapping_adjustments_ &&
input_layout_ == CHANNEL_LAYOUT_MONO &&
if (input_layout_ == CHANNEL_LAYOUT_MONO &&
ChannelLayoutToChannelCount(output_layout_) >= 2) {
// Only place the mono input in the front left and right channels.
(*matrix_)[0][0] = 1.f;

2
audio/utility/channel_mixing_matrix.h
View File

@ -36,8 +36,6 @@ class ChannelMixingMatrix {
bool CreateTransformationMatrix(std::vector<std::vector<float>>* matrix);
private:
const bool use_voip_channel_mapping_adjustments_;
// Result transformation of input channels to output channels
std::vector<std::vector<float>>* matrix_;

98
audio/utility/channel_mixing_matrix_unittest.cc
View File

@ -16,7 +16,6 @@
#include "rtc_base/arraysize.h"
#include "rtc_base/logging.h"
#include "rtc_base/strings/string_builder.h"
#include "test/field_trial.h"
#include "test/gtest.h"
namespace webrtc {
@ -125,32 +124,7 @@ TEST(ChannelMixingMatrixTest, MonoToStereo) {
EXPECT_EQ(1.0f, matrix[1][0]);
}
TEST(ChannelMixingMatrixTest, MonoToTwoOneWithoutVoIPAdjustments) {
test::ScopedFieldTrials field_trials(
"WebRTC-VoIPChannelRemixingAdjustmentKillSwitch/Enabled/");
ChannelLayout input_layout = CHANNEL_LAYOUT_MONO;
ChannelLayout output_layout = CHANNEL_LAYOUT_2_1;
ChannelMixingMatrix matrix_builder(
input_layout, ChannelLayoutToChannelCount(input_layout), output_layout,
ChannelLayoutToChannelCount(output_layout));
std::vector<std::vector<float>> matrix;
bool remapping = matrix_builder.CreateTransformationMatrix(&matrix);
// Input: mono
// CENTER
// Output: 2.1 FRONT_LEFT 1
// FRONT_RIGHT 1
// BACK_CENTER 0
//
EXPECT_FALSE(remapping);
EXPECT_EQ(3u, matrix.size());
EXPECT_EQ(1u, matrix[0].size());
EXPECT_EQ(1.0f, matrix[0][0]);
EXPECT_EQ(1.0f, matrix[1][0]);
EXPECT_EQ(0.0f, matrix[2][0]);
}
TEST(ChannelMixingMatrixTest, MonoToTwoOneWithVoIPAdjustments) {
TEST(ChannelMixingMatrixTest, MonoToTwoOne) {
ChannelLayout input_layout = CHANNEL_LAYOUT_MONO;
ChannelLayout output_layout = CHANNEL_LAYOUT_2_1;
ChannelMixingMatrix matrix_builder(
@ -173,39 +147,7 @@ TEST(ChannelMixingMatrixTest, MonoToTwoOneWithVoIPAdjustments) {
EXPECT_EQ(0.0f, matrix[2][0]);
}
TEST(ChannelMixingMatrixTest, MonoToFiveOneWithoutVoIPAdjustments) {
test::ScopedFieldTrials field_trials(
"WebRTC-VoIPChannelRemixingAdjustmentKillSwitch/Enabled/");
ChannelLayout input_layout = CHANNEL_LAYOUT_MONO;
ChannelLayout output_layout = CHANNEL_LAYOUT_5_1;
const int input_channels = ChannelLayoutToChannelCount(input_layout);
const int output_channels = ChannelLayoutToChannelCount(output_layout);
ChannelMixingMatrix matrix_builder(input_layout, input_channels,
output_layout, output_channels);
std::vector<std::vector<float>> matrix;
bool remapping = matrix_builder.CreateTransformationMatrix(&matrix);
// Input: mono
// CENTER
// Output: 5.1 LEFT 0
// RIGHT 0
// CENTER 1
// LFE 0
// SIDE_LEFT 0
// SIDE_RIGHT 0
//
EXPECT_TRUE(remapping);
EXPECT_EQ(static_cast<size_t>(output_channels), matrix.size());
for (int n = 0; n < output_channels; n++) {
EXPECT_EQ(static_cast<size_t>(input_channels), matrix[n].size());
if (n == CENTER) {
EXPECT_EQ(1.0f, matrix[CENTER][0]);
} else {
EXPECT_EQ(0.0f, matrix[n][0]);
}
}
}
TEST(ChannelMixingMatrixTest, MonoToFiveOneWithVoIPAdjustments) {
TEST(ChannelMixingMatrixTest, MonoToFiveOne) {
ChannelLayout input_layout = CHANNEL_LAYOUT_MONO;
ChannelLayout output_layout = CHANNEL_LAYOUT_5_1;
const int input_channels = ChannelLayoutToChannelCount(input_layout);
@ -235,41 +177,7 @@ TEST(ChannelMixingMatrixTest, MonoToFiveOneWithVoIPAdjustments) {
}
}
TEST(ChannelMixingMatrixTest, MonoToSevenOneWithoutVoIPAdjustments) {
test::ScopedFieldTrials field_trials(
"WebRTC-VoIPChannelRemixingAdjustmentKillSwitch/Enabled/");
ChannelLayout input_layout = CHANNEL_LAYOUT_MONO;
ChannelLayout output_layout = CHANNEL_LAYOUT_7_1;
const int input_channels = ChannelLayoutToChannelCount(input_layout);
const int output_channels = ChannelLayoutToChannelCount(output_layout);
ChannelMixingMatrix matrix_builder(input_layout, input_channels,
output_layout, output_channels);
std::vector<std::vector<float>> matrix;
bool remapping = matrix_builder.CreateTransformationMatrix(&matrix);
// Input: mono
// CENTER
// Output: 7.1 LEFT 0
// RIGHT 0
// CENTER 1
// LFE 0
// SIDE_LEFT 0
// SIDE_RIGHT 0
// BACK_LEFT 0
// BACK_RIGHT 0
//
EXPECT_TRUE(remapping);
EXPECT_EQ(static_cast<size_t>(output_channels), matrix.size());
for (int n = 0; n < output_channels; n++) {
EXPECT_EQ(static_cast<size_t>(input_channels), matrix[n].size());
if (n == CENTER) {
EXPECT_EQ(1.0f, matrix[CENTER][0]);
} else {
EXPECT_EQ(0.0f, matrix[n][0]);
}
}
}
TEST(ChannelMixingMatrixTest, MonoToSevenOneWithVoIPAdjustments) {
TEST(ChannelMixingMatrixTest, MonoToSevenOne) {
ChannelLayout input_layout = CHANNEL_LAYOUT_MONO;
ChannelLayout output_layout = CHANNEL_LAYOUT_7_1;
const int input_channels = ChannelLayoutToChannelCount(input_layout);

5
experiments/field_trials.py
View File

@ -865,9 +865,6 @@ POLICY_EXEMPT_FIELD_TRIALS: FrozenSet[FieldTrial] = frozenset([
FieldTrial('WebRTC-VideoRateControl',
42220259,
INDEFINITE),
FieldTrial('WebRTC-VoIPChannelRemixingAdjustmentKillSwitch',
40108588,
date(2024, 4, 1)),
FieldTrial('WebRTC-Vp9ExternalRefCtrl',
42234783,
date(2024, 4, 1)),
@ -884,7 +881,7 @@ POLICY_EXEMPT_FIELD_TRIALS: FrozenSet[FieldTrial] = frozenset([
]) # yapf: disable
POLICY_EXEMPT_FIELD_TRIALS_DIGEST: str = \
'ad853beba9dddb16d9f45164a8d69b5d01e7d1c9'
'a3a5347c082f66bf6c338b8fed783ebff5a50561'
REGISTERED_FIELD_TRIALS: FrozenSet[FieldTrial] = ACTIVE_FIELD_TRIALS.union(
POLICY_EXEMPT_FIELD_TRIALS)