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/*
* Copyright (c) 2012 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 "modules/audio_coding/neteq/decoder_database.h"
#include <stdlib.h>
#include <cstdint>
#include <optional>
#include <string>
#include <utility>
#include "absl/memory/memory.h"
#include "api/audio_codecs/audio_decoder.h"
#include "api/audio_codecs/audio_format.h"
#include "api/audio_codecs/builtin_audio_decoder_factory.h"
#include "api/environment/environment_factory.h"
#include "api/make_ref_counted.h"
#include "modules/audio_coding/codecs/cng/webrtc_cng.h"
#include "modules/audio_coding/neteq/packet.h"
#include "test/gmock.h"
#include "test/gtest.h"
#include "test/mock_audio_decoder.h"
#include "test/mock_audio_decoder_factory.h"
namespace webrtc {
using ::testing::WithArg;
TEST(DecoderDatabase, CreateAndDestroy) {
DecoderDatabase db(CreateEnvironment(),
make_ref_counted<MockAudioDecoderFactory>(), std::nullopt);
EXPECT_EQ(0, db.Size());
EXPECT_TRUE(db.Empty());
}
TEST(DecoderDatabase, InsertAndRemove) {
DecoderDatabase db(CreateEnvironment(),
make_ref_counted<MockAudioDecoderFactory>(), std::nullopt);
const uint8_t kPayloadType = 0;
const std::string kCodecName = "Robert\'); DROP TABLE Students;";
EXPECT_EQ(
DecoderDatabase::kOK,
db.RegisterPayload(kPayloadType, SdpAudioFormat(kCodecName, 8000, 1)));
EXPECT_EQ(1, db.Size());
EXPECT_FALSE(db.Empty());
EXPECT_EQ(DecoderDatabase::kOK, db.Remove(kPayloadType));
EXPECT_EQ(0, db.Size());
EXPECT_TRUE(db.Empty());
}
TEST(DecoderDatabase, InsertAndRemoveAll) {
DecoderDatabase db(CreateEnvironment(),
make_ref_counted<MockAudioDecoderFactory>(), std::nullopt);
const std::string kCodecName1 = "Robert\'); DROP TABLE Students;";
const std::string kCodecName2 = "https://xkcd.com/327/";
EXPECT_EQ(DecoderDatabase::kOK,
db.RegisterPayload(0, SdpAudioFormat(kCodecName1, 8000, 1)));
EXPECT_EQ(DecoderDatabase::kOK,
db.RegisterPayload(1, SdpAudioFormat(kCodecName2, 8000, 1)));
EXPECT_EQ(2, db.Size());
EXPECT_FALSE(db.Empty());
db.RemoveAll();
EXPECT_EQ(0, db.Size());
EXPECT_TRUE(db.Empty());
}
TEST(DecoderDatabase, GetDecoderInfo) {
auto factory = make_ref_counted<MockAudioDecoderFactory>();
auto* decoder = new MockAudioDecoder;
EXPECT_CALL(*factory, Create)
.WillOnce(WithArg<1>([decoder](const SdpAudioFormat& format) {
EXPECT_EQ("pcmu", format.name);
return absl::WrapUnique(decoder);
}));
DecoderDatabase db(CreateEnvironment(), std::move(factory), std::nullopt);
const uint8_t kPayloadType = 0;
const std::string kCodecName = "pcmu";
EXPECT_EQ(
DecoderDatabase::kOK,
db.RegisterPayload(kPayloadType, SdpAudioFormat(kCodecName, 8000, 1)));
const DecoderDatabase::DecoderInfo* info;
info = db.GetDecoderInfo(kPayloadType);
ASSERT_TRUE(info != nullptr);
EXPECT_TRUE(info->IsType("pcmu"));
EXPECT_EQ(kCodecName, info->get_name());
EXPECT_EQ(decoder, db.GetDecoder(kPayloadType));
info = db.GetDecoderInfo(kPayloadType + 1); // Other payload type.
EXPECT_TRUE(info == nullptr); // Should not be found.
}
TEST(DecoderDatabase, GetDecoder) {
DecoderDatabase db(CreateEnvironment(), CreateBuiltinAudioDecoderFactory(),
std::nullopt);
const uint8_t kPayloadType = 0;
EXPECT_EQ(DecoderDatabase::kOK,
db.RegisterPayload(kPayloadType, SdpAudioFormat("l16", 8000, 1)));
AudioDecoder* dec = db.GetDecoder(kPayloadType);
ASSERT_TRUE(dec != nullptr);
}
TEST(DecoderDatabase, TypeTests) {
DecoderDatabase db(CreateEnvironment(),
make_ref_counted<MockAudioDecoderFactory>(), std::nullopt);
const uint8_t kPayloadTypePcmU = 0;
const uint8_t kPayloadTypeCng = 13;
const uint8_t kPayloadTypeDtmf = 100;
const uint8_t kPayloadTypeRed = 101;
const uint8_t kPayloadNotUsed = 102;
// Load into database.
EXPECT_EQ(
DecoderDatabase::kOK,
db.RegisterPayload(kPayloadTypePcmU, SdpAudioFormat("pcmu", 8000, 1)));
EXPECT_EQ(DecoderDatabase::kOK,
db.RegisterPayload(kPayloadTypeCng, SdpAudioFormat("cn", 8000, 1)));
EXPECT_EQ(DecoderDatabase::kOK,
db.RegisterPayload(kPayloadTypeDtmf,
SdpAudioFormat("telephone-event", 8000, 1)));
EXPECT_EQ(
DecoderDatabase::kOK,
db.RegisterPayload(kPayloadTypeRed, SdpAudioFormat("red", 8000, 1)));
EXPECT_EQ(4, db.Size());
// Test.
EXPECT_FALSE(db.IsComfortNoise(kPayloadNotUsed));
EXPECT_FALSE(db.IsDtmf(kPayloadNotUsed));
EXPECT_FALSE(db.IsRed(kPayloadNotUsed));
EXPECT_FALSE(db.IsComfortNoise(kPayloadTypePcmU));
EXPECT_FALSE(db.IsDtmf(kPayloadTypePcmU));
EXPECT_FALSE(db.IsRed(kPayloadTypePcmU));
EXPECT_TRUE(db.IsComfortNoise(kPayloadTypeCng));
EXPECT_TRUE(db.IsDtmf(kPayloadTypeDtmf));
EXPECT_TRUE(db.IsRed(kPayloadTypeRed));
}
TEST(DecoderDatabase, CheckPayloadTypes) {
constexpr int kNumPayloads = 10;
DecoderDatabase db(CreateEnvironment(),
make_ref_counted<MockAudioDecoderFactory>(), std::nullopt);
// Load a number of payloads into the database. Payload types are 0, 1, ...,
// while the decoder type is the same for all payload types (this does not
// matter for the test).
for (uint8_t payload_type = 0; payload_type < kNumPayloads; ++payload_type) {
EXPECT_EQ(
DecoderDatabase::kOK,
db.RegisterPayload(payload_type, SdpAudioFormat("pcmu", 8000, 1)));
}
PacketList packet_list;
for (int i = 0; i < kNumPayloads + 1; ++i) {
// Create packet with payload type `i`. The last packet will have a payload
// type that is not registered in the decoder database.
Packet packet;
packet.payload_type = i;
packet_list.push_back(std::move(packet));
}
// Expect to return false, since the last packet is of an unknown type.
EXPECT_EQ(DecoderDatabase::kDecoderNotFound,
db.CheckPayloadTypes(packet_list));
packet_list.pop_back(); // Remove the unknown one.
EXPECT_EQ(DecoderDatabase::kOK, db.CheckPayloadTypes(packet_list));
// Delete all packets.
PacketList::iterator it = packet_list.begin();
while (it != packet_list.end()) {
it = packet_list.erase(it);
}
}
#if defined(WEBRTC_CODEC_ISAC) || defined(WEBRTC_CODEC_ISACFX)
#define IF_ISAC(x) x
#else
#define IF_ISAC(x) DISABLED_##x
#endif
// Test the methods for setting and getting active speech and CNG decoders.
TEST(DecoderDatabase, IF_ISAC(ActiveDecoders)) {
DecoderDatabase db(CreateEnvironment(), CreateBuiltinAudioDecoderFactory(),
std::nullopt);
// Load payload types.
ASSERT_EQ(DecoderDatabase::kOK,
db.RegisterPayload(0, SdpAudioFormat("pcmu", 8000, 1)));
ASSERT_EQ(DecoderDatabase::kOK,
db.RegisterPayload(103, SdpAudioFormat("isac", 16000, 1)));
ASSERT_EQ(DecoderDatabase::kOK,
db.RegisterPayload(13, SdpAudioFormat("cn", 8000, 1)));
// Verify that no decoders are active from the start.
EXPECT_EQ(nullptr, db.GetActiveDecoder());
EXPECT_EQ(nullptr, db.GetActiveCngDecoder());
// Set active speech codec.
bool changed; // Should be true when the active decoder changed.
EXPECT_EQ(DecoderDatabase::kOK, db.SetActiveDecoder(0, &changed));
EXPECT_TRUE(changed);
AudioDecoder* decoder = db.GetActiveDecoder();
ASSERT_FALSE(decoder == nullptr); // Should get a decoder here.
// Set the same again. Expect no change.
EXPECT_EQ(DecoderDatabase::kOK, db.SetActiveDecoder(0, &changed));
EXPECT_FALSE(changed);
decoder = db.GetActiveDecoder();
ASSERT_FALSE(decoder == nullptr); // Should get a decoder here.
// Change active decoder.
EXPECT_EQ(DecoderDatabase::kOK, db.SetActiveDecoder(103, &changed));
EXPECT_TRUE(changed);
decoder = db.GetActiveDecoder();
ASSERT_FALSE(decoder == nullptr); // Should get a decoder here.
// Remove the active decoder, and verify that the active becomes NULL.
EXPECT_EQ(DecoderDatabase::kOK, db.Remove(103));
EXPECT_EQ(nullptr, db.GetActiveDecoder());
// Set active CNG codec.
EXPECT_EQ(DecoderDatabase::kOK, db.SetActiveCngDecoder(13));
ComfortNoiseDecoder* cng = db.GetActiveCngDecoder();
ASSERT_FALSE(cng == nullptr); // Should get a decoder here.
// Remove the active CNG decoder, and verify that the active becomes NULL.
EXPECT_EQ(DecoderDatabase::kOK, db.Remove(13));
EXPECT_EQ(nullptr, db.GetActiveCngDecoder());
// Try to set non-existing codecs as active.
EXPECT_EQ(DecoderDatabase::kDecoderNotFound,
db.SetActiveDecoder(17, &changed));
EXPECT_EQ(DecoderDatabase::kDecoderNotFound, db.SetActiveCngDecoder(17));
}
} // namespace webrtc
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