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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/cast_streaming/browser/frame/demuxer_stream_data_provider.h"
#include <utility>
#include "base/memory/weak_ptr.h"
#include "base/test/bind.h"
#include "base/test/task_environment.h"
#include "components/cast_streaming/browser/common/demuxer_stream_client.h"
#include "media/base/audio_codecs.h"
#include "media/base/audio_decoder_config.h"
#include "media/base/channel_layout.h"
#include "media/base/decoder_buffer.h"
#include "media/base/media_util.h"
#include "media/base/sample_format.h"
#include "media/mojo/common/media_type_converters.h"
#include "media/mojo/common/mojo_data_pipe_read_write.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cast_streaming {
class DemuxerStreamDataProviderTest : public testing::Test {
public:
DemuxerStreamDataProviderTest()
: first_config_(media::AudioCodec::kMP3,
media::SampleFormat::kSampleFormatS16,
media::ChannelLayout::CHANNEL_LAYOUT_MONO,
24000 /* samples_per_second */,
media::EmptyExtraData(),
media::EncryptionScheme::kUnencrypted),
second_config_(media::AudioCodec::kOpus,
media::SampleFormat::kSampleFormatF32,
media::ChannelLayout::CHANNEL_LAYOUT_STEREO,
48000 /* samples_per_second */,
media::EmptyExtraData(),
media::EncryptionScheme::kUnencrypted) {
data_provider_ = std::make_unique<AudioDemuxerStreamDataProvider>(
remote_.BindNewPipeAndPassReceiver(),
base::BindRepeating(
&DemuxerStreamDataProviderTest::Callbacks::RequestBuffer,
base::Unretained(&callbacks_)),
base::BindOnce(
&DemuxerStreamDataProviderTest::Callbacks::OnMojoDisconnect,
base::Unretained(&callbacks_)),
second_config_);
data_provider_->SetClient(client_.weak_factory_.GetWeakPtr());
std::vector<uint8_t> data = {1, 2, 3};
first_buffer_ = media::DecoderBuffer::CopyFrom(data);
first_buffer_->set_duration(base::Seconds(1));
first_buffer_->set_timestamp(base::Seconds(2));
data = {42, 43, 44};
second_buffer_ = media::DecoderBuffer::CopyFrom(data);
second_buffer_->set_duration(base::Seconds(32));
second_buffer_->set_timestamp(base::Seconds(42));
data = {7, 8, 9};
third_buffer_ = media::DecoderBuffer::CopyFrom(data);
third_buffer_->set_duration(base::Seconds(10));
third_buffer_->set_timestamp(base::Seconds(11));
task_environment_.RunUntilIdle();
}
~DemuxerStreamDataProviderTest() override = default;
protected:
class Callbacks {
public:
MOCK_METHOD1(RequestBuffer, void(base::OnceClosure));
MOCK_METHOD0(OnMojoDisconnect, void());
MOCK_METHOD1(OnPreloadComplete, void(media::mojom::DecoderBufferPtr));
MOCK_METHOD0(OnGetBufferDoneCalled, void());
void OnGetBufferDone(std::optional<media::AudioDecoderConfig> config,
scoped_refptr<media::DecoderBuffer> buffer_expected,
mojom::GetAudioBufferResponsePtr get_buffer_response) {
if (get_buffer_response->is_buffer()) {
scoped_refptr<media::DecoderBuffer> media_buffer(
get_buffer_response->get_buffer()
.To<scoped_refptr<media::DecoderBuffer>>());
EXPECT_TRUE(buffer_expected->MatchesMetadataForTesting(*media_buffer));
}
ASSERT_EQ(!!config, !!get_buffer_response->is_stream_info());
if (config) {
EXPECT_TRUE(config->Matches(
get_buffer_response->get_stream_info()->decoder_config));
}
OnGetBufferDoneCalled();
}
};
class MockDemuxerStreamClient : public DemuxerStreamClient {
public:
~MockDemuxerStreamClient() override = default;
MOCK_METHOD1(EnableBitstreamConverter, void(BitstreamConverterEnabledCB));
MOCK_METHOD0(OnNoBuffersAvailable, void());
MOCK_METHOD0(OnError, void());
base::WeakPtrFactory<MockDemuxerStreamClient> weak_factory_{this};
};
using MojoPipePair = std::pair<mojo::ScopedDataPipeProducerHandle,
mojo::ScopedDataPipeConsumerHandle>;
MojoPipePair GetMojoPipePair() {
mojo::ScopedDataPipeProducerHandle producer_handle;
mojo::ScopedDataPipeConsumerHandle consumer_handle;
mojo::CreateDataPipe(512 /* this constant is irrelevant for these tests */,
producer_handle, consumer_handle);
return MojoPipePair(std::move(producer_handle), std::move(consumer_handle));
}
testing::StrictMock<Callbacks> callbacks_;
testing::StrictMock<MockDemuxerStreamClient> client_;
base::test::SingleThreadTaskEnvironment task_environment_{
base::test::TaskEnvironment::TimeSource::MOCK_TIME};
scoped_refptr<media::DecoderBuffer> first_buffer_;
scoped_refptr<media::DecoderBuffer> second_buffer_;
scoped_refptr<media::DecoderBuffer> third_buffer_;
media::AudioDecoderConfig first_config_;
media::AudioDecoderConfig second_config_;
std::unique_ptr<AudioDemuxerStreamDataProvider> data_provider_;
mojo::Remote<mojom::AudioBufferRequester> remote_;
};
TEST_F(DemuxerStreamDataProviderTest, DataSentInOrderExpected) {
// Test providing a config.
EXPECT_CALL(callbacks_, RequestBuffer(testing::_));
remote_->GetBuffer(
base::BindOnce(&DemuxerStreamDataProviderTest::Callbacks::OnGetBufferDone,
base::Unretained(&callbacks_), first_config_,
scoped_refptr<media::DecoderBuffer>()));
task_environment_.RunUntilIdle();
EXPECT_CALL(callbacks_, OnGetBufferDoneCalled());
MojoPipePair pipes = GetMojoPipePair();
data_provider_->OnNewStreamInfo(first_config_, std::move(pipes.second));
EXPECT_TRUE(first_config_.Matches(data_provider_->config()));
task_environment_.RunUntilIdle();
// Test providing a buffer.
EXPECT_CALL(callbacks_, RequestBuffer(testing::_));
remote_->GetBuffer(base::BindOnce(
&DemuxerStreamDataProviderTest::Callbacks::OnGetBufferDone,
base::Unretained(&callbacks_), std::nullopt, first_buffer_));
task_environment_.RunUntilIdle();
EXPECT_CALL(callbacks_, OnGetBufferDoneCalled());
data_provider_->ProvideBuffer(
media::mojom::DecoderBuffer::From(*first_buffer_));
task_environment_.RunUntilIdle();
EXPECT_TRUE(first_config_.Matches(data_provider_->config()));
// Test providing a different buffer.
EXPECT_CALL(callbacks_, RequestBuffer(testing::_));
remote_->GetBuffer(base::BindOnce(
&DemuxerStreamDataProviderTest::Callbacks::OnGetBufferDone,
base::Unretained(&callbacks_), std::nullopt, second_buffer_));
task_environment_.RunUntilIdle();
EXPECT_CALL(callbacks_, OnGetBufferDoneCalled());
data_provider_->ProvideBuffer(
media::mojom::DecoderBuffer::From(*second_buffer_));
EXPECT_TRUE(first_config_.Matches(data_provider_->config()));
task_environment_.RunUntilIdle();
// Test providing a different config.
EXPECT_CALL(callbacks_, RequestBuffer(testing::_));
remote_->GetBuffer(
base::BindOnce(&DemuxerStreamDataProviderTest::Callbacks::OnGetBufferDone,
base::Unretained(&callbacks_), second_config_,
scoped_refptr<media::DecoderBuffer>()));
task_environment_.RunUntilIdle();
task_environment_.RunUntilIdle();
EXPECT_CALL(callbacks_, OnGetBufferDoneCalled());
pipes = GetMojoPipePair();
EXPECT_TRUE(first_config_.Matches(data_provider_->config()));
data_provider_->OnNewStreamInfo(second_config_, std::move(pipes.second));
EXPECT_TRUE(second_config_.Matches(data_provider_->config()));
task_environment_.RunUntilIdle();
// Test providing a third buffer.
EXPECT_CALL(callbacks_, RequestBuffer(testing::_));
remote_->GetBuffer(base::BindOnce(
&DemuxerStreamDataProviderTest::Callbacks::OnGetBufferDone,
base::Unretained(&callbacks_), std::nullopt, third_buffer_));
task_environment_.RunUntilIdle();
EXPECT_CALL(callbacks_, OnGetBufferDoneCalled());
data_provider_->ProvideBuffer(
media::mojom::DecoderBuffer::From(*third_buffer_));
task_environment_.RunUntilIdle();
}
TEST_F(DemuxerStreamDataProviderTest, NoBuffersCallback) {
EXPECT_CALL(callbacks_, RequestBuffer(testing::_))
.WillOnce([](base::OnceClosure no_buffers_cb) {
std::move(no_buffers_cb).Run();
});
EXPECT_CALL(client_, OnNoBuffersAvailable());
remote_->GetBuffer(base::BindOnce(
&DemuxerStreamDataProviderTest::Callbacks::OnGetBufferDone,
base::Unretained(&callbacks_), std::nullopt, first_buffer_));
task_environment_.RunUntilIdle();
}
TEST_F(DemuxerStreamDataProviderTest, EnableBitstreamConverter) {
EXPECT_CALL(client_, EnableBitstreamConverter(testing::_))
.WillOnce(
[](base::OnceCallback<void(bool)> cb) { std::move(cb).Run(true); });
remote_->EnableBitstreamConverter(base::OnceCallback<void(bool)>());
task_environment_.RunUntilIdle();
}
TEST_F(DemuxerStreamDataProviderTest, BufferPreloading) {
EXPECT_CALL(callbacks_, RequestBuffer(testing::_));
data_provider_->PreloadBuffer(base::BindOnce(&Callbacks::OnPreloadComplete,
base::Unretained(&callbacks_)));
EXPECT_CALL(callbacks_, OnPreloadComplete(testing::_));
data_provider_->ProvideBuffer(
media::mojom::DecoderBuffer::From(*first_buffer_));
}
} // namespace cast_streaming
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