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session-android/jni/webrtc/modules/audio_coding/codecs/opus/opus_unittest.cc
Moxie Marlinspike d83a3d71bc Support for Signal calls. 
Merge in RedPhone

// FREEBIE
2015-09-30 14:30:09 -07:00

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/*
* Copyright (c) 2013 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 <string>
#include "testing/gtest/include/gtest/gtest.h"
#include "webrtc/modules/audio_coding/codecs/opus/interface/opus_interface.h"
#include "webrtc/modules/audio_coding/codecs/opus/opus_inst.h"
#include "webrtc/test/testsupport/fileutils.h"
namespace webrtc {
// Number of samples in a 60 ms stereo frame, sampled at 48 kHz.
const int kOpusMaxFrameSamples = 48 * 60 * 2;
// Maximum number of bytes in output bitstream.
const size_t kMaxBytes = 1000;
// Number of samples-per-channel in a 20 ms frame, sampled at 48 kHz.
const int kOpus20msFrameSamples = 48 * 20;
// Number of samples-per-channel in a 10 ms frame, sampled at 48 kHz.
const int kOpus10msFrameSamples = 48 * 10;
class OpusTest : public ::testing::Test {
protected:
OpusTest();
virtual void SetUp();
void TestSetMaxBandwidth(opus_int32 expect, int32_t set);
WebRtcOpusEncInst* opus_mono_encoder_;
WebRtcOpusEncInst* opus_stereo_encoder_;
WebRtcOpusDecInst* opus_mono_decoder_;
WebRtcOpusDecInst* opus_mono_decoder_new_;
WebRtcOpusDecInst* opus_stereo_decoder_;
WebRtcOpusDecInst* opus_stereo_decoder_new_;
int16_t speech_data_[kOpusMaxFrameSamples];
int16_t output_data_[kOpusMaxFrameSamples];
uint8_t bitstream_[kMaxBytes];
};
OpusTest::OpusTest()
: opus_mono_encoder_(NULL),
opus_stereo_encoder_(NULL),
opus_mono_decoder_(NULL),
opus_mono_decoder_new_(NULL),
opus_stereo_decoder_(NULL),
opus_stereo_decoder_new_(NULL) {
}
void OpusTest::SetUp() {
FILE* input_file;
const std::string file_name =
webrtc::test::ResourcePath("audio_coding/speech_mono_32_48kHz", "pcm");
input_file = fopen(file_name.c_str(), "rb");
ASSERT_TRUE(input_file != NULL);
ASSERT_EQ(kOpusMaxFrameSamples,
static_cast<int32_t>(fread(speech_data_, sizeof(int16_t),
kOpusMaxFrameSamples, input_file)));
fclose(input_file);
input_file = NULL;
}
void OpusTest::TestSetMaxBandwidth(opus_int32 expect, int32_t set) {
opus_int32 bandwidth;
// Test mono encoder.
EXPECT_EQ(0, WebRtcOpus_SetMaxBandwidth(opus_mono_encoder_, set));
opus_encoder_ctl(opus_mono_encoder_->encoder,
OPUS_GET_MAX_BANDWIDTH(&bandwidth));
EXPECT_EQ(expect, bandwidth);
// Test stereo encoder.
EXPECT_EQ(0, WebRtcOpus_SetMaxBandwidth(opus_stereo_encoder_, set));
opus_encoder_ctl(opus_stereo_encoder_->encoder,
OPUS_GET_MAX_BANDWIDTH(&bandwidth));
EXPECT_EQ(expect, bandwidth);
}
// Test failing Create.
TEST_F(OpusTest, OpusCreateFail) {
// Test to see that an invalid pointer is caught.
EXPECT_EQ(-1, WebRtcOpus_EncoderCreate(NULL, 1));
EXPECT_EQ(-1, WebRtcOpus_EncoderCreate(&opus_mono_encoder_, 3));
EXPECT_EQ(-1, WebRtcOpus_DecoderCreate(NULL, 1));
EXPECT_EQ(-1, WebRtcOpus_DecoderCreate(&opus_mono_decoder_, 3));
}
// Test failing Free.
TEST_F(OpusTest, OpusFreeFail) {
// Test to see that an invalid pointer is caught.
EXPECT_EQ(-1, WebRtcOpus_EncoderFree(NULL));
EXPECT_EQ(-1, WebRtcOpus_DecoderFree(NULL));
}
// Test normal Create and Free.
TEST_F(OpusTest, OpusCreateFree) {
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_mono_encoder_, 1));
EXPECT_EQ(0, WebRtcOpus_DecoderCreate(&opus_mono_decoder_, 1));
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_stereo_encoder_, 2));
EXPECT_EQ(0, WebRtcOpus_DecoderCreate(&opus_stereo_decoder_, 2));
EXPECT_TRUE(opus_mono_encoder_ != NULL);
EXPECT_TRUE(opus_mono_decoder_ != NULL);
EXPECT_TRUE(opus_stereo_encoder_ != NULL);
EXPECT_TRUE(opus_stereo_decoder_ != NULL);
// Free encoder and decoder memory.
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_mono_encoder_));
EXPECT_EQ(0, WebRtcOpus_DecoderFree(opus_mono_decoder_));
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_stereo_encoder_));
EXPECT_EQ(0, WebRtcOpus_DecoderFree(opus_stereo_decoder_));
}
TEST_F(OpusTest, OpusEncodeDecodeMono) {
// Create encoder memory.
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_mono_encoder_, 1));
EXPECT_EQ(0, WebRtcOpus_DecoderCreate(&opus_mono_decoder_, 1));
EXPECT_EQ(0, WebRtcOpus_DecoderCreate(&opus_mono_decoder_new_, 1));
// Set bitrate.
EXPECT_EQ(0, WebRtcOpus_SetBitRate(opus_mono_encoder_, 32000));
// Check number of channels for decoder.
EXPECT_EQ(1, WebRtcOpus_DecoderChannels(opus_mono_decoder_));
EXPECT_EQ(1, WebRtcOpus_DecoderChannels(opus_mono_decoder_new_));
// Encode & decode.
int16_t encoded_bytes;
int16_t audio_type;
int16_t output_data_decode_new[kOpusMaxFrameSamples];
int16_t output_data_decode[kOpusMaxFrameSamples];
int16_t* coded = reinterpret_cast<int16_t*>(bitstream_);
encoded_bytes = WebRtcOpus_Encode(opus_mono_encoder_, speech_data_,
kOpus20msFrameSamples, kMaxBytes,
bitstream_);
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_DecodeNew(opus_mono_decoder_new_, bitstream_,
encoded_bytes, output_data_decode_new,
&audio_type));
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_Decode(opus_mono_decoder_, coded,
encoded_bytes, output_data_decode,
&audio_type));
// Data in |output_data_decode_new| should be the same as in
// |output_data_decode|.
for (int i = 0; i < kOpus20msFrameSamples; i++) {
EXPECT_EQ(output_data_decode_new[i], output_data_decode[i]);
}
// Free memory.
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_mono_encoder_));
EXPECT_EQ(0, WebRtcOpus_DecoderFree(opus_mono_decoder_));
EXPECT_EQ(0, WebRtcOpus_DecoderFree(opus_mono_decoder_new_));
}
TEST_F(OpusTest, OpusEncodeDecodeStereo) {
// Create encoder memory.
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_stereo_encoder_, 2));
EXPECT_EQ(0, WebRtcOpus_DecoderCreate(&opus_stereo_decoder_, 2));
EXPECT_EQ(0, WebRtcOpus_DecoderCreate(&opus_stereo_decoder_new_, 2));
// Set bitrate.
EXPECT_EQ(0, WebRtcOpus_SetBitRate(opus_stereo_encoder_, 64000));
// Check number of channels for decoder.
EXPECT_EQ(2, WebRtcOpus_DecoderChannels(opus_stereo_decoder_));
EXPECT_EQ(2, WebRtcOpus_DecoderChannels(opus_stereo_decoder_new_));
// Encode & decode.
int16_t encoded_bytes;
int16_t audio_type;
int16_t output_data_decode_new[kOpusMaxFrameSamples];
int16_t output_data_decode[kOpusMaxFrameSamples];
int16_t output_data_decode_slave[kOpusMaxFrameSamples];
int16_t* coded = reinterpret_cast<int16_t*>(bitstream_);
encoded_bytes = WebRtcOpus_Encode(opus_stereo_encoder_, speech_data_,
kOpus20msFrameSamples, kMaxBytes,
bitstream_);
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_DecodeNew(opus_stereo_decoder_new_, bitstream_,
encoded_bytes, output_data_decode_new,
&audio_type));
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_Decode(opus_stereo_decoder_, coded,
encoded_bytes, output_data_decode,
&audio_type));
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_DecodeSlave(opus_stereo_decoder_, coded,
encoded_bytes, output_data_decode_slave,
&audio_type));
// Data in |output_data_decode_new| should be the same as in
// |output_data_decode| and |output_data_decode_slave| interleaved to a
// stereo signal.
for (int i = 0; i < kOpus20msFrameSamples; i++) {
EXPECT_EQ(output_data_decode_new[i * 2], output_data_decode[i]);
EXPECT_EQ(output_data_decode_new[i * 2 + 1], output_data_decode_slave[i]);
}
// Free memory.
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_stereo_encoder_));
EXPECT_EQ(0, WebRtcOpus_DecoderFree(opus_stereo_decoder_));
EXPECT_EQ(0, WebRtcOpus_DecoderFree(opus_stereo_decoder_new_));
}
TEST_F(OpusTest, OpusSetBitRate) {
// Test without creating encoder memory.
EXPECT_EQ(-1, WebRtcOpus_SetBitRate(opus_mono_encoder_, 60000));
EXPECT_EQ(-1, WebRtcOpus_SetBitRate(opus_stereo_encoder_, 60000));
// Create encoder memory, try with different bitrates.
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_mono_encoder_, 1));
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_stereo_encoder_, 2));
EXPECT_EQ(0, WebRtcOpus_SetBitRate(opus_mono_encoder_, 30000));
EXPECT_EQ(0, WebRtcOpus_SetBitRate(opus_stereo_encoder_, 60000));
EXPECT_EQ(0, WebRtcOpus_SetBitRate(opus_mono_encoder_, 300000));
EXPECT_EQ(0, WebRtcOpus_SetBitRate(opus_stereo_encoder_, 600000));
// Free memory.
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_mono_encoder_));
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_stereo_encoder_));
}
TEST_F(OpusTest, OpusSetComplexity) {
// Test without creating encoder memory.
EXPECT_EQ(-1, WebRtcOpus_SetComplexity(opus_mono_encoder_, 9));
EXPECT_EQ(-1, WebRtcOpus_SetComplexity(opus_stereo_encoder_, 9));
// Create encoder memory, try with different complexities.
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_mono_encoder_, 1));
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_stereo_encoder_, 2));
EXPECT_EQ(0, WebRtcOpus_SetComplexity(opus_mono_encoder_, 0));
EXPECT_EQ(0, WebRtcOpus_SetComplexity(opus_stereo_encoder_, 0));
EXPECT_EQ(0, WebRtcOpus_SetComplexity(opus_mono_encoder_, 10));
EXPECT_EQ(0, WebRtcOpus_SetComplexity(opus_stereo_encoder_, 10));
EXPECT_EQ(-1, WebRtcOpus_SetComplexity(opus_mono_encoder_, 11));
EXPECT_EQ(-1, WebRtcOpus_SetComplexity(opus_stereo_encoder_, 11));
// Free memory.
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_mono_encoder_));
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_stereo_encoder_));
}
// Encode and decode one frame (stereo), initialize the decoder and
// decode once more.
TEST_F(OpusTest, OpusDecodeInit) {
// Create encoder memory.
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_stereo_encoder_, 2));
EXPECT_EQ(0, WebRtcOpus_DecoderCreate(&opus_stereo_decoder_, 2));
EXPECT_EQ(0, WebRtcOpus_DecoderCreate(&opus_stereo_decoder_new_, 2));
// Encode & decode.
int16_t encoded_bytes;
int16_t audio_type;
int16_t output_data_decode_new[kOpusMaxFrameSamples];
int16_t output_data_decode[kOpusMaxFrameSamples];
int16_t output_data_decode_slave[kOpusMaxFrameSamples];
int16_t* coded = reinterpret_cast<int16_t*>(bitstream_);
encoded_bytes = WebRtcOpus_Encode(opus_stereo_encoder_, speech_data_,
kOpus20msFrameSamples, kMaxBytes,
bitstream_);
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_DecodeNew(opus_stereo_decoder_new_, bitstream_,
encoded_bytes, output_data_decode_new,
&audio_type));
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_Decode(opus_stereo_decoder_, coded,
encoded_bytes, output_data_decode,
&audio_type));
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_DecodeSlave(opus_stereo_decoder_, coded,
encoded_bytes, output_data_decode_slave,
&audio_type));
// Data in |output_data_decode_new| should be the same as in
// |output_data_decode| and |output_data_decode_slave| interleaved to a
// stereo signal.
for (int i = 0; i < kOpus20msFrameSamples; i++) {
EXPECT_EQ(output_data_decode_new[i * 2], output_data_decode[i]);
EXPECT_EQ(output_data_decode_new[i * 2 + 1], output_data_decode_slave[i]);
}
EXPECT_EQ(0, WebRtcOpus_DecoderInitNew(opus_stereo_decoder_new_));
EXPECT_EQ(0, WebRtcOpus_DecoderInit(opus_stereo_decoder_));
EXPECT_EQ(0, WebRtcOpus_DecoderInitSlave(opus_stereo_decoder_));
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_DecodeNew(opus_stereo_decoder_new_, bitstream_,
encoded_bytes, output_data_decode_new,
&audio_type));
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_Decode(opus_stereo_decoder_, coded,
encoded_bytes, output_data_decode,
&audio_type));
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_DecodeSlave(opus_stereo_decoder_, coded,
encoded_bytes, output_data_decode_slave,
&audio_type));
// Data in |output_data_decode_new| should be the same as in
// |output_data_decode| and |output_data_decode_slave| interleaved to a
// stereo signal.
for (int i = 0; i < kOpus20msFrameSamples; i++) {
EXPECT_EQ(output_data_decode_new[i * 2], output_data_decode[i]);
EXPECT_EQ(output_data_decode_new[i * 2 + 1], output_data_decode_slave[i]);
}
// Free memory.
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_stereo_encoder_));
EXPECT_EQ(0, WebRtcOpus_DecoderFree(opus_stereo_decoder_));
EXPECT_EQ(0, WebRtcOpus_DecoderFree(opus_stereo_decoder_new_));
}
TEST_F(OpusTest, OpusEnableDisableFec) {
// Test without creating encoder memory.
EXPECT_EQ(-1, WebRtcOpus_EnableFec(opus_mono_encoder_));
EXPECT_EQ(-1, WebRtcOpus_DisableFec(opus_stereo_encoder_));
// Create encoder memory, try with different bitrates.
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_mono_encoder_, 1));
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_stereo_encoder_, 2));
EXPECT_EQ(0, WebRtcOpus_EnableFec(opus_mono_encoder_));
EXPECT_EQ(0, WebRtcOpus_EnableFec(opus_stereo_encoder_));
EXPECT_EQ(0, WebRtcOpus_DisableFec(opus_mono_encoder_));
EXPECT_EQ(0, WebRtcOpus_DisableFec(opus_stereo_encoder_));
// Free memory.
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_mono_encoder_));
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_stereo_encoder_));
}
TEST_F(OpusTest, OpusSetPacketLossRate) {
// Test without creating encoder memory.
EXPECT_EQ(-1, WebRtcOpus_SetPacketLossRate(opus_mono_encoder_, 50));
EXPECT_EQ(-1, WebRtcOpus_SetPacketLossRate(opus_stereo_encoder_, 50));
// Create encoder memory, try with different bitrates.
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_mono_encoder_, 1));
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_stereo_encoder_, 2));
EXPECT_EQ(0, WebRtcOpus_SetPacketLossRate(opus_mono_encoder_, 50));
EXPECT_EQ(0, WebRtcOpus_SetPacketLossRate(opus_stereo_encoder_, 50));
EXPECT_EQ(-1, WebRtcOpus_SetPacketLossRate(opus_mono_encoder_, -1));
EXPECT_EQ(-1, WebRtcOpus_SetPacketLossRate(opus_stereo_encoder_, -1));
EXPECT_EQ(-1, WebRtcOpus_SetPacketLossRate(opus_mono_encoder_, 101));
EXPECT_EQ(-1, WebRtcOpus_SetPacketLossRate(opus_stereo_encoder_, 101));
// Free memory.
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_mono_encoder_));
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_stereo_encoder_));
}
TEST_F(OpusTest, OpusSetMaxBandwidth) {
// Test without creating encoder memory.
EXPECT_EQ(-1, WebRtcOpus_SetMaxBandwidth(opus_mono_encoder_, 20000));
EXPECT_EQ(-1, WebRtcOpus_SetMaxBandwidth(opus_stereo_encoder_, 20000));
// Create encoder memory, try with different bitrates.
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_mono_encoder_, 1));
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_stereo_encoder_, 2));
TestSetMaxBandwidth(OPUS_BANDWIDTH_FULLBAND, 24000);
TestSetMaxBandwidth(OPUS_BANDWIDTH_FULLBAND, 14000);
TestSetMaxBandwidth(OPUS_BANDWIDTH_SUPERWIDEBAND, 10000);
TestSetMaxBandwidth(OPUS_BANDWIDTH_WIDEBAND, 7000);
TestSetMaxBandwidth(OPUS_BANDWIDTH_MEDIUMBAND, 6000);
TestSetMaxBandwidth(OPUS_BANDWIDTH_NARROWBAND, 4000);
TestSetMaxBandwidth(OPUS_BANDWIDTH_NARROWBAND, 3000);
// Free memory.
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_mono_encoder_));
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_stereo_encoder_));
}
// PLC in mono mode.
TEST_F(OpusTest, OpusDecodePlcMono) {
// Create encoder memory.
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_mono_encoder_, 1));
EXPECT_EQ(0, WebRtcOpus_DecoderCreate(&opus_mono_decoder_, 1));
EXPECT_EQ(0, WebRtcOpus_DecoderCreate(&opus_mono_decoder_new_, 1));
// Set bitrate.
EXPECT_EQ(0, WebRtcOpus_SetBitRate(opus_mono_encoder_, 32000));
// Check number of channels for decoder.
EXPECT_EQ(1, WebRtcOpus_DecoderChannels(opus_mono_decoder_));
EXPECT_EQ(1, WebRtcOpus_DecoderChannels(opus_mono_decoder_new_));
// Encode & decode.
int16_t encoded_bytes;
int16_t audio_type;
int16_t output_data_decode_new[kOpusMaxFrameSamples];
int16_t output_data_decode[kOpusMaxFrameSamples];
int16_t* coded = reinterpret_cast<int16_t*>(bitstream_);
encoded_bytes = WebRtcOpus_Encode(opus_mono_encoder_, speech_data_,
kOpus20msFrameSamples, kMaxBytes,
bitstream_);
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_DecodeNew(opus_mono_decoder_new_, bitstream_,
encoded_bytes, output_data_decode_new,
&audio_type));
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_Decode(opus_mono_decoder_, coded,
encoded_bytes, output_data_decode,
&audio_type));
// Call decoder PLC for both versions of the decoder.
int16_t plc_buffer[kOpusMaxFrameSamples];
int16_t plc_buffer_new[kOpusMaxFrameSamples];
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_DecodePlcMaster(opus_mono_decoder_, plc_buffer, 1));
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_DecodePlc(opus_mono_decoder_new_, plc_buffer_new, 1));
// Data in |plc_buffer| should be the same as in |plc_buffer_new|.
for (int i = 0; i < kOpus20msFrameSamples; i++) {
EXPECT_EQ(plc_buffer[i], plc_buffer_new[i]);
}
// Free memory.
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_mono_encoder_));
EXPECT_EQ(0, WebRtcOpus_DecoderFree(opus_mono_decoder_));
EXPECT_EQ(0, WebRtcOpus_DecoderFree(opus_mono_decoder_new_));
}
// PLC in stereo mode.
TEST_F(OpusTest, OpusDecodePlcStereo) {
// Create encoder memory.
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_stereo_encoder_, 2));
EXPECT_EQ(0, WebRtcOpus_DecoderCreate(&opus_stereo_decoder_, 2));
EXPECT_EQ(0, WebRtcOpus_DecoderCreate(&opus_stereo_decoder_new_, 2));
// Set bitrate.
EXPECT_EQ(0, WebRtcOpus_SetBitRate(opus_stereo_encoder_, 64000));
// Check number of channels for decoder.
EXPECT_EQ(2, WebRtcOpus_DecoderChannels(opus_stereo_decoder_));
EXPECT_EQ(2, WebRtcOpus_DecoderChannels(opus_stereo_decoder_new_));
// Encode & decode.
int16_t encoded_bytes;
int16_t audio_type;
int16_t output_data_decode_new[kOpusMaxFrameSamples];
int16_t output_data_decode[kOpusMaxFrameSamples];
int16_t output_data_decode_slave[kOpusMaxFrameSamples];
int16_t* coded = reinterpret_cast<int16_t*>(bitstream_);
encoded_bytes = WebRtcOpus_Encode(opus_stereo_encoder_, speech_data_,
kOpus20msFrameSamples, kMaxBytes,
bitstream_);
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_DecodeNew(opus_stereo_decoder_new_, bitstream_,
encoded_bytes, output_data_decode_new,
&audio_type));
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_Decode(opus_stereo_decoder_, coded,
encoded_bytes, output_data_decode,
&audio_type));
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_DecodeSlave(opus_stereo_decoder_, coded,
encoded_bytes,
output_data_decode_slave,
&audio_type));
// Call decoder PLC for both versions of the decoder.
int16_t plc_buffer_left[kOpusMaxFrameSamples];
int16_t plc_buffer_right[kOpusMaxFrameSamples];
int16_t plc_buffer_new[kOpusMaxFrameSamples];
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_DecodePlcMaster(opus_stereo_decoder_,
plc_buffer_left, 1));
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_DecodePlcSlave(opus_stereo_decoder_,
plc_buffer_right, 1));
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_DecodePlc(opus_stereo_decoder_new_, plc_buffer_new, 1));
// Data in |plc_buffer_left| and |plc_buffer_right|should be the same as the
// interleaved samples in |plc_buffer_new|.
for (int i = 0, j = 0; i < kOpus20msFrameSamples; i++) {
EXPECT_EQ(plc_buffer_left[i], plc_buffer_new[j++]);
EXPECT_EQ(plc_buffer_right[i], plc_buffer_new[j++]);
}
// Free memory.
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_stereo_encoder_));
EXPECT_EQ(0, WebRtcOpus_DecoderFree(opus_stereo_decoder_));
EXPECT_EQ(0, WebRtcOpus_DecoderFree(opus_stereo_decoder_new_));
}
// Duration estimation.
TEST_F(OpusTest, OpusDurationEstimation) {
// Create.
EXPECT_EQ(0, WebRtcOpus_EncoderCreate(&opus_stereo_encoder_, 2));
EXPECT_EQ(0, WebRtcOpus_DecoderCreate(&opus_stereo_decoder_, 2));
int16_t encoded_bytes;
// 10 ms.
encoded_bytes = WebRtcOpus_Encode(opus_stereo_encoder_, speech_data_,
kOpus10msFrameSamples, kMaxBytes,
bitstream_);
EXPECT_EQ(kOpus10msFrameSamples,
WebRtcOpus_DurationEst(opus_stereo_decoder_, bitstream_,
encoded_bytes));
// 20 ms
encoded_bytes = WebRtcOpus_Encode(opus_stereo_encoder_, speech_data_,
kOpus20msFrameSamples, kMaxBytes,
bitstream_);
EXPECT_EQ(kOpus20msFrameSamples,
WebRtcOpus_DurationEst(opus_stereo_decoder_, bitstream_,
encoded_bytes));
// Free memory.
EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_stereo_encoder_));
EXPECT_EQ(0, WebRtcOpus_DecoderFree(opus_stereo_decoder_));
}
} // namespace webrtc
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