blob: d3532e4926223a4411326ed0675b02420c5b68af [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stddef.h>
#include <utility>
#include <vector>
#include "base/bind.h"
#include "base/macros.h"
#include "base/message_loop/message_loop.h"
#include "build/build_config.h"
#include "media/base/gmock_callback_support.h"
#include "media/base/media_util.h"
#include "media/base/mock_filters.h"
#include "media/base/test_helpers.h"
#include "media/filters/decoder_selector.h"
#include "media/filters/decrypting_demuxer_stream.h"
#include "testing/gtest/include/gtest/gtest.h"
using ::testing::_;
using ::testing::InvokeWithoutArgs;
using ::testing::IsNull;
using ::testing::NiceMock;
using ::testing::NotNull;
using ::testing::Return;
using ::testing::StrictMock;
// Use anonymous namespace here to prevent the actions to be defined multiple
// times across multiple test files. Sadly we can't use static for them.
namespace {
MATCHER(EncryptedConfig, "") {
return arg.is_encrypted();
}
MATCHER(ClearConfig, "") {
return !arg.is_encrypted();
}
} // namespace
namespace media {
class AudioDecoderSelectorTest : public ::testing::Test {
public:
enum DecryptorCapability {
kNoCdm, // No CDM. Only possible for clear stream.
kNoDecryptor, // CDM is available but Decryptor is not supported.
kDecryptOnly,
kDecryptAndDecode
};
AudioDecoderSelectorTest()
: demuxer_stream_(
new StrictMock<MockDemuxerStream>(DemuxerStream::AUDIO)),
decoder_1_(new StrictMock<MockAudioDecoder>()),
decoder_2_(new StrictMock<MockAudioDecoder>()) {
all_decoders_.push_back(decoder_1_);
all_decoders_.push_back(decoder_2_);
// |cdm_context_| and |decryptor_| are conditionally created in
// InitializeDecoderSelector().
}
~AudioDecoderSelectorTest() {
message_loop_.RunUntilIdle();
}
MOCK_METHOD2(OnDecoderSelected,
void(AudioDecoder*, DecryptingDemuxerStream*));
void MockOnDecoderSelected(std::unique_ptr<AudioDecoder> decoder,
std::unique_ptr<DecryptingDemuxerStream> stream) {
OnDecoderSelected(decoder.get(), stream.get());
selected_decoder_ = std::move(decoder);
}
void UseClearStream() {
AudioDecoderConfig clear_audio_config(kCodecVorbis, kSampleFormatPlanarF32,
CHANNEL_LAYOUT_STEREO, 44100,
EmptyExtraData(), Unencrypted());
demuxer_stream_->set_audio_decoder_config(clear_audio_config);
}
void UseEncryptedStream() {
AudioDecoderConfig encrypted_audio_config(
kCodecVorbis, kSampleFormatPlanarF32, CHANNEL_LAYOUT_STEREO, 44100,
EmptyExtraData(), AesCtrEncryptionScheme());
demuxer_stream_->set_audio_decoder_config(encrypted_audio_config);
}
void InitializeDecoderSelector(DecryptorCapability decryptor_capability,
int num_decoders) {
if (decryptor_capability != kNoCdm) {
cdm_context_.reset(new StrictMock<MockCdmContext>());
if (decryptor_capability == kNoDecryptor) {
EXPECT_CALL(*cdm_context_, GetDecryptor())
.WillRepeatedly(Return(nullptr));
} else {
decryptor_.reset(new NiceMock<MockDecryptor>());
EXPECT_CALL(*cdm_context_, GetDecryptor())
.WillRepeatedly(Return(decryptor_.get()));
EXPECT_CALL(*decryptor_, InitializeAudioDecoder(_, _))
.WillRepeatedly(
RunCallback<1>(decryptor_capability == kDecryptAndDecode));
}
}
DCHECK_GE(all_decoders_.size(), static_cast<size_t>(num_decoders));
all_decoders_.erase(
all_decoders_.begin() + num_decoders, all_decoders_.end());
decoder_selector_.reset(new AudioDecoderSelector(
message_loop_.task_runner(), std::move(all_decoders_), new MediaLog()));
}
void SelectDecoder() {
decoder_selector_->SelectDecoder(
demuxer_stream_.get(), cdm_context_.get(),
base::Bind(&AudioDecoderSelectorTest::MockOnDecoderSelected,
base::Unretained(this)),
base::Bind(&AudioDecoderSelectorTest::OnDecoderOutput),
base::Bind(&AudioDecoderSelectorTest::OnWaitingForDecryptionKey));
message_loop_.RunUntilIdle();
}
void SelectDecoderAndDestroy() {
SelectDecoder();
EXPECT_CALL(*this, OnDecoderSelected(IsNull(), IsNull()));
decoder_selector_.reset();
message_loop_.RunUntilIdle();
}
static void OnDecoderOutput(const scoped_refptr<AudioBuffer>& output) {
NOTREACHED();
}
static void OnWaitingForDecryptionKey() {
NOTREACHED();
}
// Declare |decoder_selector_| after |demuxer_stream_| and |decryptor_| since
// |demuxer_stream_| and |decryptor_| should outlive |decoder_selector_|.
std::unique_ptr<StrictMock<MockDemuxerStream>> demuxer_stream_;
std::unique_ptr<StrictMock<MockCdmContext>> cdm_context_;
// Use NiceMock since we don't care about most of calls on the decryptor, e.g.
// RegisterNewKeyCB().
std::unique_ptr<NiceMock<MockDecryptor>> decryptor_;
std::unique_ptr<AudioDecoderSelector> decoder_selector_;
StrictMock<MockAudioDecoder>* decoder_1_;
StrictMock<MockAudioDecoder>* decoder_2_;
ScopedVector<AudioDecoder> all_decoders_;
std::unique_ptr<AudioDecoder> selected_decoder_;
base::MessageLoop message_loop_;
private:
DISALLOW_COPY_AND_ASSIGN(AudioDecoderSelectorTest);
};
// TODO(xhwang): Add kNoCdm tests for clear stream.
// The stream is not encrypted but we have no clear decoder. No decoder can be
// selected.
TEST_F(AudioDecoderSelectorTest, ClearStream_NoDecryptor_NoClearDecoder) {
UseClearStream();
InitializeDecoderSelector(kNoDecryptor, 0);
EXPECT_CALL(*this, OnDecoderSelected(IsNull(), IsNull()));
SelectDecoder();
}
// The stream is not encrypted and we have one clear decoder. The decoder
// will be selected.
TEST_F(AudioDecoderSelectorTest, ClearStream_NoDecryptor_OneClearDecoder) {
UseClearStream();
InitializeDecoderSelector(kNoDecryptor, 1);
EXPECT_CALL(*decoder_1_, Initialize(ClearConfig(), _, _, _))
.WillOnce(RunCallback<2>(true));
EXPECT_CALL(*this, OnDecoderSelected(decoder_1_, IsNull()));
SelectDecoder();
}
TEST_F(AudioDecoderSelectorTest,
Destroy_ClearStream_NoDecryptor_OneClearDecoder) {
UseClearStream();
InitializeDecoderSelector(kNoDecryptor, 1);
EXPECT_CALL(*decoder_1_, Initialize(ClearConfig(), _, _, _));
SelectDecoderAndDestroy();
}
// The stream is not encrypted and we have multiple clear decoders. The first
// decoder that can decode the input stream will be selected.
TEST_F(AudioDecoderSelectorTest, ClearStream_NoDecryptor_MultipleClearDecoder) {
UseClearStream();
InitializeDecoderSelector(kNoDecryptor, 2);
EXPECT_CALL(*decoder_1_, Initialize(ClearConfig(), _, _, _))
.WillOnce(RunCallback<2>(false));
EXPECT_CALL(*decoder_2_, Initialize(ClearConfig(), _, _, _))
.WillOnce(RunCallback<2>(true));
EXPECT_CALL(*this, OnDecoderSelected(decoder_2_, IsNull()));
SelectDecoder();
}
TEST_F(AudioDecoderSelectorTest,
Destroy_ClearStream_NoDecryptor_MultipleClearDecoder) {
UseClearStream();
InitializeDecoderSelector(kNoDecryptor, 2);
EXPECT_CALL(*decoder_1_, Initialize(ClearConfig(), _, _, _))
.WillOnce(RunCallback<2>(false));
EXPECT_CALL(*decoder_2_, Initialize(ClearConfig(), _, _, _));
SelectDecoderAndDestroy();
}
// There is a decryptor but the stream is not encrypted. The decoder will be
// selected.
TEST_F(AudioDecoderSelectorTest, ClearStream_HasDecryptor) {
UseClearStream();
InitializeDecoderSelector(kDecryptOnly, 1);
EXPECT_CALL(*decoder_1_, Initialize(ClearConfig(), _, _, _))
.WillOnce(RunCallback<2>(true));
EXPECT_CALL(*this, OnDecoderSelected(decoder_1_, IsNull()));
SelectDecoder();
}
TEST_F(AudioDecoderSelectorTest, Destroy_ClearStream_HasDecryptor) {
UseClearStream();
InitializeDecoderSelector(kDecryptOnly, 1);
EXPECT_CALL(*decoder_1_, Initialize(ClearConfig(), _, _, _));
SelectDecoderAndDestroy();
}
// The stream is encrypted and there's no decryptor. The decoder only supports
// clear streams so no decoder can be selected.
TEST_F(AudioDecoderSelectorTest, EncryptedStream_NoDecryptor_OneClearDecoder) {
UseEncryptedStream();
InitializeDecoderSelector(kNoDecryptor, 1);
EXPECT_CALL(*decoder_1_, Initialize(EncryptedConfig(), _, _, _))
.WillOnce(RunCallback<2>(false));
EXPECT_CALL(*this, OnDecoderSelected(IsNull(), IsNull()));
SelectDecoder();
}
TEST_F(AudioDecoderSelectorTest,
Destroy_EncryptedStream_NoDecryptor_OneClearDecoder) {
UseEncryptedStream();
InitializeDecoderSelector(kNoDecryptor, 1);
EXPECT_CALL(*decoder_1_, Initialize(EncryptedConfig(), _, _, _));
SelectDecoderAndDestroy();
}
// The stream is encrypted and there's no decryptor. There are multiple decoders
// and the first one that supports encrypted streams is selected.
TEST_F(AudioDecoderSelectorTest, EncryptedStream_NoDecryptor_MultipleDecoders) {
UseEncryptedStream();
InitializeDecoderSelector(kNoDecryptor, 2);
EXPECT_CALL(*decoder_1_, Initialize(EncryptedConfig(), _, _, _))
.WillOnce(RunCallback<2>(false));
EXPECT_CALL(*decoder_2_, Initialize(EncryptedConfig(), _, _, _))
.WillOnce(RunCallback<2>(true));
EXPECT_CALL(*this, OnDecoderSelected(decoder_2_, IsNull()));
SelectDecoder();
}
TEST_F(AudioDecoderSelectorTest,
Destroy_EncryptedStream_NoDecryptor_MultipleDecoders) {
UseEncryptedStream();
InitializeDecoderSelector(kNoDecryptor, 2);
EXPECT_CALL(*decoder_1_, Initialize(EncryptedConfig(), _, _, _))
.WillOnce(RunCallback<2>(false));
EXPECT_CALL(*decoder_2_, Initialize(EncryptedConfig(), _, _, _));
SelectDecoderAndDestroy();
}
// Decryptor can only do decryption and there's no decoder available. No decoder
// can be selected.
TEST_F(AudioDecoderSelectorTest, EncryptedStream_DecryptOnly_NoClearDecoder) {
UseEncryptedStream();
InitializeDecoderSelector(kDecryptOnly, 0);
EXPECT_CALL(*this, OnDecoderSelected(IsNull(), IsNull()));
SelectDecoder();
}
// Decryptor can do decryption-only and there's a decoder available. The decoder
// will be selected and a DecryptingDemuxerStream will be created.
TEST_F(AudioDecoderSelectorTest, EncryptedStream_DecryptOnly_OneClearDecoder) {
UseEncryptedStream();
InitializeDecoderSelector(kDecryptOnly, 1);
EXPECT_CALL(*decoder_1_, Initialize(ClearConfig(), _, _, _))
.WillOnce(RunCallback<2>(true));
EXPECT_CALL(*this, OnDecoderSelected(decoder_1_, NotNull()));
SelectDecoder();
}
TEST_F(AudioDecoderSelectorTest,
Destroy_EncryptedStream_DecryptOnly_OneClearDecoder) {
UseEncryptedStream();
InitializeDecoderSelector(kDecryptOnly, 1);
EXPECT_CALL(*decoder_1_, Initialize(ClearConfig(), _, _, _));
SelectDecoderAndDestroy();
}
// Decryptor can only do decryption and there are multiple decoders available.
// The first decoder that can decode the input stream will be selected and
// a DecryptingDemuxerStream will be created.
TEST_F(AudioDecoderSelectorTest,
EncryptedStream_DecryptOnly_MultipleClearDecoder) {
UseEncryptedStream();
InitializeDecoderSelector(kDecryptOnly, 2);
EXPECT_CALL(*decoder_1_, Initialize(ClearConfig(), _, _, _))
.WillOnce(RunCallback<2>(false));
EXPECT_CALL(*decoder_2_, Initialize(ClearConfig(), _, _, _))
.WillOnce(RunCallback<2>(true));
EXPECT_CALL(*this, OnDecoderSelected(decoder_2_, NotNull()));
SelectDecoder();
}
TEST_F(AudioDecoderSelectorTest,
Destroy_EncryptedStream_DecryptOnly_MultipleClearDecoder) {
UseEncryptedStream();
InitializeDecoderSelector(kDecryptOnly, 2);
EXPECT_CALL(*decoder_1_, Initialize(ClearConfig(), _, _, _))
.WillOnce(RunCallback<2>(false));
EXPECT_CALL(*decoder_2_, Initialize(ClearConfig(), _, _, _));
SelectDecoderAndDestroy();
}
// Decryptor can do decryption and decoding.
TEST_F(AudioDecoderSelectorTest, EncryptedStream_DecryptAndDecode) {
UseEncryptedStream();
InitializeDecoderSelector(kDecryptAndDecode, 1);
#if !defined(OS_ANDROID)
// A DecryptingVideoDecoder will be created and selected. The clear decoder
// should not be touched at all. No DecryptingDemuxerStream should to be
// created.
EXPECT_CALL(*this, OnDecoderSelected(NotNull(), IsNull()));
#else
// A DecryptingDemuxerStream will be created. The clear decoder will be
// initialized and returned.
EXPECT_CALL(*decoder_1_, Initialize(ClearConfig(), _, _, _))
.WillOnce(RunCallback<2>(true));
EXPECT_CALL(*this, OnDecoderSelected(NotNull(), NotNull()));
#endif
SelectDecoder();
}
} // namespace media