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/*
* Copyright 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "stack/include/a2dp_vendor_opus.h"
#include <base/logging.h>
#include <gtest/gtest.h>
#include <stdio.h>
#include <chrono>
#include <cstdint>
#include <fstream>
#include <future>
#include <iomanip>
#include <map>
#include <string>
#include "common/init_flags.h"
#include "common/time_util.h"
#include "os/log.h"
#include "osi/include/allocator.h"
#include "osi/test/AllocationTestHarness.h"
#include "stack/include/a2dp_vendor_opus_constants.h"
#include "stack/include/bt_hdr.h"
#include "test_util.h"
#include "wav_reader.h"
extern void allocation_tracker_uninit(void);
namespace {
constexpr uint32_t kA2dpTickUs = 23 * 1000;
constexpr char kWavFile[] = "test/a2dp/raw_data/pcm1644s.wav";
const uint8_t kCodecInfoOpusCapability[AVDT_CODEC_SIZE] = {
A2DP_OPUS_CODEC_LEN, // Length
AVDT_MEDIA_TYPE_AUDIO << 4, // Media Type
A2DP_MEDIA_CT_NON_A2DP, // Media Codec Type Vendor
(A2DP_OPUS_VENDOR_ID & 0x000000FF),
(A2DP_OPUS_VENDOR_ID & 0x0000FF00) >> 8,
(A2DP_OPUS_VENDOR_ID & 0x00FF0000) >> 16,
(A2DP_OPUS_VENDOR_ID & 0xFF000000) >> 24,
(A2DP_OPUS_CODEC_ID & 0x00FF),
(A2DP_OPUS_CODEC_ID & 0xFF00) >> 8,
A2DP_OPUS_CHANNEL_MODE_STEREO | A2DP_OPUS_20MS_FRAMESIZE |
A2DP_OPUS_SAMPLING_FREQ_48000
};
uint8_t* Data(BT_HDR* packet) { return packet->data + packet->offset; }
uint32_t GetReadSize() {
return A2DP_VendorGetFrameSizeOpus(kCodecInfoOpusCapability) * A2DP_VendorGetTrackChannelCountOpus(kCodecInfoOpusCapability) * (A2DP_VendorGetTrackBitsPerSampleOpus(kCodecInfoOpusCapability) / 8);
}
} // namespace
namespace bluetooth {
namespace testing {
static BT_HDR* packet = nullptr;
static WavReader wav_reader = WavReader(GetWavFilePath(kWavFile).c_str());
static std::promise<void> promise;
class A2dpOpusTest : public AllocationTestHarness {
protected:
void SetUp() override {
AllocationTestHarness::SetUp();
common::InitFlags::SetAllForTesting();
// Disable our allocation tracker to allow ASAN full range
allocation_tracker_uninit();
SetCodecConfig();
encoder_iface_ = const_cast<tA2DP_ENCODER_INTERFACE*>(
A2DP_VendorGetEncoderInterfaceOpus(kCodecInfoOpusCapability));
ASSERT_NE(encoder_iface_, nullptr);
decoder_iface_ = const_cast<tA2DP_DECODER_INTERFACE*>(
A2DP_VendorGetDecoderInterfaceOpus(kCodecInfoOpusCapability));
ASSERT_NE(decoder_iface_, nullptr);
}
void TearDown() override {
if (a2dp_codecs_ != nullptr) {
delete a2dp_codecs_;
}
if (encoder_iface_ != nullptr) {
encoder_iface_->encoder_cleanup();
}
if (decoder_iface_ != nullptr) {
decoder_iface_->decoder_cleanup();
}
AllocationTestHarness::TearDown();
}
void SetCodecConfig() {
uint8_t codec_info_result[AVDT_CODEC_SIZE];
btav_a2dp_codec_index_t peer_codec_index;
a2dp_codecs_ = new A2dpCodecs(std::vector<btav_a2dp_codec_config_t>());
ASSERT_TRUE(a2dp_codecs_->init());
// Create the codec capability - SBC Sink
memset(codec_info_result, 0, sizeof(codec_info_result));
peer_codec_index = A2DP_SinkCodecIndex(kCodecInfoOpusCapability);
ASSERT_NE(peer_codec_index, BTAV_A2DP_CODEC_INDEX_MAX);
codec_config_ = a2dp_codecs_->findSinkCodecConfig(kCodecInfoOpusCapability);
ASSERT_NE(codec_config_, nullptr);
ASSERT_TRUE(a2dp_codecs_->setSinkCodecConfig(kCodecInfoOpusCapability, true,
codec_info_result, true));
ASSERT_EQ(a2dp_codecs_->getCurrentCodecConfig(), codec_config_);
// Compare the result codec with the local test codec info
for (size_t i = 0; i < kCodecInfoOpusCapability[0] + 1; i++) {
ASSERT_EQ(codec_info_result[i], kCodecInfoOpusCapability[i]);
}
ASSERT_EQ(codec_config_->getAudioBitsPerSample(), 16);
}
void InitializeEncoder(a2dp_source_read_callback_t read_cb,
a2dp_source_enqueue_callback_t enqueue_cb) {
tA2DP_ENCODER_INIT_PEER_PARAMS peer_params = {true, true, 1000};
encoder_iface_->encoder_init(&peer_params, codec_config_, read_cb,
enqueue_cb);
}
void InitializeDecoder(decoded_data_callback_t data_cb) {
decoder_iface_->decoder_init(data_cb);
}
BT_HDR* AllocateL2capPacket(const std::vector<uint8_t> data) const {
auto packet = AllocatePacket(data.size());
std::copy(data.cbegin(), data.cend(), Data(packet));
return packet;
}
BT_HDR* AllocatePacket(size_t packet_length) const {
BT_HDR* packet =
static_cast<BT_HDR*>(osi_calloc(sizeof(BT_HDR) + packet_length));
packet->len = packet_length;
return packet;
}
A2dpCodecConfig* codec_config_;
A2dpCodecs* a2dp_codecs_;
tA2DP_ENCODER_INTERFACE* encoder_iface_;
tA2DP_DECODER_INTERFACE* decoder_iface_;
};
TEST_F(A2dpOpusTest, a2dp_source_read_underflow) {
promise = {};
auto read_cb = +[](uint8_t* p_buf, uint32_t len) -> uint32_t {
// underflow
return 0;
};
auto enqueue_cb = +[](BT_HDR* p_buf, size_t frames_n, uint32_t len) -> bool {
promise.set_value();
osi_free(p_buf);
return false;
};
InitializeEncoder(read_cb, enqueue_cb);
uint64_t timestamp_us = bluetooth::common::time_gettimeofday_us();
encoder_iface_->send_frames(timestamp_us);
usleep(kA2dpTickUs);
timestamp_us = bluetooth::common::time_gettimeofday_us();
encoder_iface_->send_frames(timestamp_us);
ASSERT_EQ(promise.get_future().wait_for(std::chrono::milliseconds(10)),
std::future_status::timeout);
}
TEST_F(A2dpOpusTest, a2dp_enqueue_cb_is_invoked) {
promise = {};
auto read_cb = +[](uint8_t* p_buf, uint32_t len) -> uint32_t {
ASSERT(GetReadSize() == len);
return len;
};
auto enqueue_cb = +[](BT_HDR* p_buf, size_t frames_n, uint32_t len) -> bool {
static bool first_invocation = true;
if (first_invocation) {
promise.set_value();
}
first_invocation = false;
osi_free(p_buf);
return false;
};
InitializeEncoder(read_cb, enqueue_cb);
uint64_t timestamp_us = bluetooth::common::time_gettimeofday_us();
encoder_iface_->send_frames(timestamp_us);
usleep(kA2dpTickUs);
timestamp_us = bluetooth::common::time_gettimeofday_us();
encoder_iface_->send_frames(timestamp_us);
promise.get_future().wait();
}
TEST_F(A2dpOpusTest, decoded_data_cb_not_invoked_when_empty_packet) {
auto data_cb = +[](uint8_t* p_buf, uint32_t len) { FAIL(); };
InitializeDecoder(data_cb);
std::vector<uint8_t> data;
BT_HDR* packet = AllocateL2capPacket(data);
decoder_iface_->decode_packet(packet);
osi_free(packet);
}
TEST_F(A2dpOpusTest, decoded_data_cb_invoked) {
promise = {};
auto data_cb = +[](uint8_t* p_buf, uint32_t len) {};
InitializeDecoder(data_cb);
auto read_cb = +[](uint8_t* p_buf, uint32_t len) -> uint32_t {
static uint32_t counter = 0;
memcpy(p_buf, wav_reader.GetSamples() + counter, len);
counter += len;
return len;
};
auto enqueue_cb = +[](BT_HDR* p_buf, size_t frames_n, uint32_t len) -> bool {
static bool first_invocation = true;
if (first_invocation) {
packet = reinterpret_cast<BT_HDR*>(
osi_malloc(sizeof(*p_buf) + p_buf->len + 1));
memcpy(packet, p_buf, sizeof(*p_buf));
packet->offset = 0;
memcpy(packet->data + 1, p_buf->data + p_buf->offset, p_buf->len);
packet->data[0] = frames_n;
p_buf->len += 1;
promise.set_value();
}
first_invocation = false;
osi_free(p_buf);
return false;
};
InitializeEncoder(read_cb, enqueue_cb);
uint64_t timestamp_us = bluetooth::common::time_gettimeofday_us();
encoder_iface_->send_frames(timestamp_us);
promise.get_future().wait();
decoder_iface_->decode_packet(packet);
osi_free(packet);
}
} // namespace testing
} // namespace bluetooth
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