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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/isac/fix/include/isacfix.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 kIsacBlockDurationMs = 30;
static const int kIsacInputSamplingKhz = 16;
static const int kIsacOutputSamplingKhz = 16;
// Define switch for bit rate.
static bool ValidateBitRate(const char* flagname, int32_t value) {
if (value >= 10 && value <= 32)
return true;
printf("Invalid bit rate, should be between 10 and 32 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);
} // namespace
class NetEqIsacQualityTest : public NetEqQualityTest {
protected:
NetEqIsacQualityTest();
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:
ISACFIX_MainStruct* isac_encoder_;
int bit_rate_kbps_;
};
NetEqIsacQualityTest::NetEqIsacQualityTest()
: NetEqQualityTest(kIsacBlockDurationMs,
kIsacInputSamplingKhz,
kIsacOutputSamplingKhz,
NetEqDecoder::kDecoderISAC),
isac_encoder_(NULL),
bit_rate_kbps_(FLAGS_bit_rate_kbps) {}
void NetEqIsacQualityTest::SetUp() {
ASSERT_EQ(1u, channels_) << "iSAC supports only mono audio.";
// Create encoder memory.
WebRtcIsacfix_Create(&isac_encoder_);
ASSERT_TRUE(isac_encoder_ != NULL);
EXPECT_EQ(0, WebRtcIsacfix_EncoderInit(isac_encoder_, 1));
// Set bitrate and block length.
EXPECT_EQ(0, WebRtcIsacfix_Control(isac_encoder_, bit_rate_kbps_ * 1000,
kIsacBlockDurationMs));
NetEqQualityTest::SetUp();
}
void NetEqIsacQualityTest::TearDown() {
// Free memory.
EXPECT_EQ(0, WebRtcIsacfix_Free(isac_encoder_));
NetEqQualityTest::TearDown();
}
int NetEqIsacQualityTest::EncodeBlock(int16_t* in_data,
size_t block_size_samples,
uint8_t* payload, size_t max_bytes) {
// ISAC takes 10 ms for every call.
const int subblocks = kIsacBlockDurationMs / 10;
const int subblock_length = 10 * kIsacInputSamplingKhz;
int value = 0;
int pointer = 0;
for (int idx = 0; idx < subblocks; idx++, pointer += subblock_length) {
// The Isac encoder does not perform encoding (and returns 0) until it
// receives a sequence of sub-blocks that amount to the frame duration.
EXPECT_EQ(0, value);
value = WebRtcIsacfix_Encode(isac_encoder_, &in_data[pointer], payload);
}
EXPECT_GT(value, 0);
return value;
}
TEST_F(NetEqIsacQualityTest, Test) {
Simulate();
}
} // namespace test
} // namespace webrtc
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