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/*
* 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.
*/
#include "webrtc/modules/audio_coding/codecs/opus/opus_interface.h"
#include "webrtc/modules/audio_coding/codecs/opus/opus_inst.h"
#include "webrtc/modules/audio_coding/neteq/tools/neteq_quality_test.h"
using google::RegisterFlagValidator;
using google::ParseCommandLineFlags;
using std::string;
using testing::InitGoogleTest;
namespace webrtc {
namespace test {
namespace {
static const int kOpusBlockDurationMs = 20;
static const int kOpusSamplingKhz = 48;
// Define switch for bit rate.
static bool ValidateBitRate(const char* flagname, int32_t value) {
if (value >= 6 && value <= 510)
return true;
printf("Invalid bit rate, should be between 6 and 510 kbps.");
return false;
}
DEFINE_int32(bit_rate_kbps, 32, "Target bit rate (kbps).");
static const bool bit_rate_dummy =
RegisterFlagValidator(&FLAGS_bit_rate_kbps, &ValidateBitRate);
// Define switch for complexity.
static bool ValidateComplexity(const char* flagname, int32_t value) {
if (value >= -1 && value <= 10)
return true;
printf("Invalid complexity setting, should be between 0 and 10.");
return false;
}
DEFINE_int32(complexity, 10, "Complexity: 0 ~ 10 -- defined as in Opus"
"specification.");
static const bool complexity_dummy =
RegisterFlagValidator(&FLAGS_complexity, &ValidateComplexity);
// Define switch for maxplaybackrate
DEFINE_int32(maxplaybackrate, 48000, "Maximum playback rate (Hz).");
// Define switch for application mode.
static bool ValidateApplication(const char* flagname, int32_t value) {
if (value != 0 && value != 1) {
printf("Invalid application mode, should be 0 or 1.");
return false;
}
return true;
}
DEFINE_int32(application, 0, "Application mode: 0 -- VOIP, 1 -- Audio.");
static const bool application_dummy =
RegisterFlagValidator(&FLAGS_application, &ValidateApplication);
// Define switch for reported packet loss rate.
static bool ValidatePacketLossRate(const char* flagname, int32_t value) {
if (value >= 0 && value <= 100)
return true;
printf("Invalid packet loss percentile, should be between 0 and 100.");
return false;
}
DEFINE_int32(reported_loss_rate, 10, "Reported percentile of packet loss.");
static const bool reported_loss_rate_dummy =
RegisterFlagValidator(&FLAGS_reported_loss_rate, &ValidatePacketLossRate);
DEFINE_bool(fec, false, "Enable FEC for encoding (-nofec to disable).");
DEFINE_bool(dtx, false, "Enable DTX for encoding (-nodtx to disable).");
// Define switch for number of sub packets to repacketize.
static bool ValidateSubPackets(const char* flagname, int32_t value) {
if (value >= 1 && value <= 3)
return true;
printf("Invalid number of sub packets, should be between 1 and 3.");
return false;
}
DEFINE_int32(sub_packets, 1, "Number of sub packets to repacketize.");
static const bool sub_packets_dummy =
RegisterFlagValidator(&FLAGS_sub_packets, &ValidateSubPackets);
} // namepsace
class NetEqOpusQualityTest : public NetEqQualityTest {
protected:
NetEqOpusQualityTest();
void SetUp() override;
void TearDown() override;
virtual int EncodeBlock(int16_t* in_data, size_t block_size_samples,
uint8_t* payload, size_t max_bytes);
private:
WebRtcOpusEncInst* opus_encoder_;
OpusRepacketizer* repacketizer_;
size_t sub_block_size_samples_;
int bit_rate_kbps_;
bool fec_;
bool dtx_;
int complexity_;
int maxplaybackrate_;
int target_loss_rate_;
int sub_packets_;
int application_;
};
NetEqOpusQualityTest::NetEqOpusQualityTest()
: NetEqQualityTest(kOpusBlockDurationMs * FLAGS_sub_packets,
kOpusSamplingKhz,
kOpusSamplingKhz,
NetEqDecoder::kDecoderOpus),
opus_encoder_(NULL),
repacketizer_(NULL),
sub_block_size_samples_(
static_cast<size_t>(kOpusBlockDurationMs * kOpusSamplingKhz)),
bit_rate_kbps_(FLAGS_bit_rate_kbps),
fec_(FLAGS_fec),
dtx_(FLAGS_dtx),
complexity_(FLAGS_complexity),
maxplaybackrate_(FLAGS_maxplaybackrate),
target_loss_rate_(FLAGS_reported_loss_rate),
sub_packets_(FLAGS_sub_packets) {
// Redefine decoder type if input is stereo.
if (channels_ > 1) {
decoder_type_ = NetEqDecoder::kDecoderOpus_2ch;
}
application_ = FLAGS_application;
}
void NetEqOpusQualityTest::SetUp() {
// Create encoder memory.
WebRtcOpus_EncoderCreate(&opus_encoder_, channels_, application_);
ASSERT_TRUE(opus_encoder_);
// Create repacketizer.
repacketizer_ = opus_repacketizer_create();
ASSERT_TRUE(repacketizer_);
// Set bitrate.
EXPECT_EQ(0, WebRtcOpus_SetBitRate(opus_encoder_, bit_rate_kbps_ * 1000));
if (fec_) {
EXPECT_EQ(0, WebRtcOpus_EnableFec(opus_encoder_));
}
if (dtx_) {
EXPECT_EQ(0, WebRtcOpus_EnableDtx(opus_encoder_));
}
EXPECT_EQ(0, WebRtcOpus_SetComplexity(opus_encoder_, complexity_));
EXPECT_EQ(0, WebRtcOpus_SetMaxPlaybackRate(opus_encoder_, maxplaybackrate_));
EXPECT_EQ(0, WebRtcOpus_SetPacketLossRate(opus_encoder_,
target_loss_rate_));
NetEqQualityTest::SetUp();
}
void NetEqOpusQualityTest::TearDown() {
// Free memory.
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_encoder_));
opus_repacketizer_destroy(repacketizer_);
NetEqQualityTest::TearDown();
}
int NetEqOpusQualityTest::EncodeBlock(int16_t* in_data,
size_t block_size_samples,
uint8_t* payload, size_t max_bytes) {
EXPECT_EQ(block_size_samples, sub_block_size_samples_ * sub_packets_);
int16_t* pointer = in_data;
int value;
opus_repacketizer_init(repacketizer_);
for (int idx = 0; idx < sub_packets_; idx++) {
value = WebRtcOpus_Encode(opus_encoder_, pointer, sub_block_size_samples_,
max_bytes, payload);
Log() << "Encoded a frame with Opus mode "
<< (value == 0 ? 0 : payload[0] >> 3)
<< std::endl;
if (OPUS_OK != opus_repacketizer_cat(repacketizer_, payload, value)) {
opus_repacketizer_init(repacketizer_);
// If the repacketization fails, we discard this frame.
return 0;
}
pointer += sub_block_size_samples_ * channels_;
}
value = opus_repacketizer_out(repacketizer_, payload,
static_cast<opus_int32>(max_bytes));
EXPECT_GE(value, 0);
return value;
}
TEST_F(NetEqOpusQualityTest, Test) {
Simulate();
}
} // namespace test
} // namespace webrtc
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