src/media/base/test_helpers.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "media/base/test_helpers.h"
   6
   7 #include "base/bind.h"
   8 #include "base/logging.h"
   9 #include "base/message_loop/message_loop.h"
  10 #include "base/pickle.h"
  11 #include "base/test/test_timeouts.h"
  12 #include "base/time/time.h"
  13 #include "base/timer/timer.h"
  14 #include "media/base/audio_buffer.h"
  15 #include "media/base/bind_to_current_loop.h"
  16 #include "media/base/decoder_buffer.h"
  17 #include "ui/gfx/rect.h"
  18
  19 using ::testing::_;
  20 using ::testing::StrictMock;
  21
  22 namespace media {
  23
  24 // Utility mock for testing methods expecting Closures and PipelineStatusCBs.
  25 class MockCallback : public base::RefCountedThreadSafe<MockCallback> {
  26  public:
  27   MockCallback();
  28   MOCK_METHOD0(Run, void());
  29   MOCK_METHOD1(RunWithStatus, void(PipelineStatus));
  30
  31  protected:
  32   friend class base::RefCountedThreadSafe<MockCallback>;
  33   virtual ~MockCallback();
  34
  35  private:
  36   DISALLOW_COPY_AND_ASSIGN(MockCallback);
  37 };
  38
  39 MockCallback::MockCallback() {}
  40 MockCallback::~MockCallback() {}
  41
  42 base::Closure NewExpectedClosure() {
  43   StrictMock<MockCallback>* callback = new StrictMock<MockCallback>();
  44   EXPECT_CALL(*callback, Run());
  45   return base::Bind(&MockCallback::Run, callback);
  46 }
  47
  48 PipelineStatusCB NewExpectedStatusCB(PipelineStatus status) {
  49   StrictMock<MockCallback>* callback = new StrictMock<MockCallback>();
  50   EXPECT_CALL(*callback, RunWithStatus(status));
  51   return base::Bind(&MockCallback::RunWithStatus, callback);
  52 }
  53
  54 WaitableMessageLoopEvent::WaitableMessageLoopEvent()
  55     : message_loop_(base::MessageLoop::current()),
  56       signaled_(false),
  57       status_(PIPELINE_OK) {
  58   DCHECK(message_loop_);
  59 }
  60
  61 WaitableMessageLoopEvent::~WaitableMessageLoopEvent() {}
  62
  63 base::Closure WaitableMessageLoopEvent::GetClosure() {
  64   DCHECK_EQ(message_loop_, base::MessageLoop::current());
  65   return BindToCurrentLoop(base::Bind(
  66       &WaitableMessageLoopEvent::OnCallback, base::Unretained(this),
  67       PIPELINE_OK));
  68 }
  69
  70 PipelineStatusCB WaitableMessageLoopEvent::GetPipelineStatusCB() {
  71   DCHECK_EQ(message_loop_, base::MessageLoop::current());
  72   return BindToCurrentLoop(base::Bind(
  73       &WaitableMessageLoopEvent::OnCallback, base::Unretained(this)));
  74 }
  75
  76 void WaitableMessageLoopEvent::RunAndWait() {
  77   RunAndWaitForStatus(PIPELINE_OK);
  78 }
  79
  80 void WaitableMessageLoopEvent::RunAndWaitForStatus(PipelineStatus expected) {
  81   DCHECK_EQ(message_loop_, base::MessageLoop::current());
  82   if (signaled_) {
  83     EXPECT_EQ(expected, status_);
  84     return;
  85   }
  86
  87   base::Timer timer(false, false);
  88   timer.Start(FROM_HERE, TestTimeouts::action_timeout(), base::Bind(
  89       &WaitableMessageLoopEvent::OnTimeout, base::Unretained(this)));
  90
  91   message_loop_->Run();
  92   EXPECT_TRUE(signaled_);
  93   EXPECT_EQ(expected, status_);
  94 }
  95
  96 void WaitableMessageLoopEvent::OnCallback(PipelineStatus status) {
  97   DCHECK_EQ(message_loop_, base::MessageLoop::current());
  98   signaled_ = true;
  99   status_ = status;
 100   message_loop_->QuitWhenIdle();
 101 }
 102
 103 void WaitableMessageLoopEvent::OnTimeout() {
 104   DCHECK_EQ(message_loop_, base::MessageLoop::current());
 105   ADD_FAILURE() << "Timed out waiting for message loop to quit";
 106   message_loop_->QuitWhenIdle();
 107 }
 108
 109 static VideoDecoderConfig GetTestConfig(VideoCodec codec,
 110                                         gfx::Size coded_size,
 111                                         bool is_encrypted) {
 112   gfx::Rect visible_rect(coded_size.width(), coded_size.height());
 113   gfx::Size natural_size = coded_size;
 114
 115   return VideoDecoderConfig(codec, VIDEO_CODEC_PROFILE_UNKNOWN,
 116       VideoFrame::YV12, coded_size, visible_rect, natural_size,
 117       NULL, 0, is_encrypted);
 118 }
 119
 120 static const gfx::Size kNormalSize(320, 240);
 121 static const gfx::Size kLargeSize(640, 480);
 122
 123 VideoDecoderConfig TestVideoConfig::Invalid() {
 124   return GetTestConfig(kUnknownVideoCodec, kNormalSize, false);
 125 }
 126
 127 VideoDecoderConfig TestVideoConfig::Normal() {
 128   return GetTestConfig(kCodecVP8, kNormalSize, false);
 129 }
 130
 131 VideoDecoderConfig TestVideoConfig::NormalEncrypted() {
 132   return GetTestConfig(kCodecVP8, kNormalSize, true);
 133 }
 134
 135 VideoDecoderConfig TestVideoConfig::Large() {
 136   return GetTestConfig(kCodecVP8, kLargeSize, false);
 137 }
 138
 139 VideoDecoderConfig TestVideoConfig::LargeEncrypted() {
 140   return GetTestConfig(kCodecVP8, kLargeSize, true);
 141 }
 142
 143 gfx::Size TestVideoConfig::NormalCodedSize() {
 144   return kNormalSize;
 145 }
 146
 147 gfx::Size TestVideoConfig::LargeCodedSize() {
 148   return kLargeSize;
 149 }
 150
 151 template <class T>
 152 scoped_refptr<AudioBuffer> MakeAudioBuffer(SampleFormat format,
 153                                            ChannelLayout channel_layout,
 154                                            size_t channel_count,
 155                                            int sample_rate,
 156                                            T start,
 157                                            T increment,
 158                                            size_t frames,
 159                                            base::TimeDelta timestamp) {
 160   const size_t channels = ChannelLayoutToChannelCount(channel_layout);
 161   scoped_refptr<AudioBuffer> output =
 162       AudioBuffer::CreateBuffer(format,
 163                                 channel_layout,
 164                                 static_cast<int>(channel_count),
 165                                 sample_rate,
 166                                 static_cast<int>(frames));
 167   output->set_timestamp(timestamp);
 168
 169   const bool is_planar =
 170       format == kSampleFormatPlanarS16 || format == kSampleFormatPlanarF32;
 171
 172   // Values in channel 0 will be:
 173   //   start
 174   //   start + increment
 175   //   start + 2 * increment, ...
 176   // While, values in channel 1 will be:
 177   //   start + frames * increment
 178   //   start + (frames + 1) * increment
 179   //   start + (frames + 2) * increment, ...
 180   for (size_t ch = 0; ch < channels; ++ch) {
 181     T* buffer =
 182         reinterpret_cast<T*>(output->channel_data()[is_planar ? ch : 0]);
 183     const T v = static_cast<T>(start + ch * frames * increment);
 184     for (size_t i = 0; i < frames; ++i) {
 185       buffer[is_planar ? i : ch + i * channels] =
 186           static_cast<T>(v + i * increment);
 187     }
 188   }
 189   return output;
 190 }
 191
 192 // Instantiate all the types of MakeAudioBuffer() and
 193 // MakeAudioBuffer() needed.
 194 #define DEFINE_MAKE_AUDIO_BUFFER_INSTANCE(type)              \
 195   template scoped_refptr<AudioBuffer> MakeAudioBuffer<type>( \
 196       SampleFormat format,                                   \
 197       ChannelLayout channel_layout,                          \
 198       size_t channel_count,                                  \
 199       int sample_rate,                                       \
 200       type start,                                            \
 201       type increment,                                        \
 202       size_t frames,                                         \
 203       base::TimeDelta start_time)
 204 DEFINE_MAKE_AUDIO_BUFFER_INSTANCE(uint8);
 205 DEFINE_MAKE_AUDIO_BUFFER_INSTANCE(int16);
 206 DEFINE_MAKE_AUDIO_BUFFER_INSTANCE(int32);
 207 DEFINE_MAKE_AUDIO_BUFFER_INSTANCE(float);
 208
 209 static const char kFakeVideoBufferHeader[] = "FakeVideoBufferForTest";
 210
 211 scoped_refptr<DecoderBuffer> CreateFakeVideoBufferForTest(
 212     const VideoDecoderConfig& config,
 213     base::TimeDelta timestamp, base::TimeDelta duration) {
 214   Pickle pickle;
 215   pickle.WriteString(kFakeVideoBufferHeader);
 216   pickle.WriteInt(config.coded_size().width());
 217   pickle.WriteInt(config.coded_size().height());
 218   pickle.WriteInt64(timestamp.InMilliseconds());
 219
 220   scoped_refptr<DecoderBuffer> buffer = DecoderBuffer::CopyFrom(
 221       static_cast<const uint8*>(pickle.data()),
 222       static_cast<int>(pickle.size()));
 223   buffer->set_timestamp(timestamp);
 224   buffer->set_duration(duration);
 225
 226   return buffer;
 227 }
 228
 229 bool VerifyFakeVideoBufferForTest(
 230     const scoped_refptr<DecoderBuffer>& buffer,
 231     const VideoDecoderConfig& config) {
 232   // Check if the input |buffer| matches the |config|.
 233   PickleIterator pickle(Pickle(reinterpret_cast<const char*>(buffer->data()),
 234                                buffer->data_size()));
 235   std::string header;
 236   int width = 0;
 237   int height = 0;
 238   bool success = pickle.ReadString(&header) && pickle.ReadInt(&width) &&
 239                  pickle.ReadInt(&height);
 240   return (success && header == kFakeVideoBufferHeader &&
 241           width == config.coded_size().width() &&
 242           height == config.coded_size().height());
 243 }
 244
 245 CallbackPairChecker::CallbackPairChecker() : expecting_b_(false) {
 246 }
 247
 248 CallbackPairChecker::~CallbackPairChecker() {
 249   EXPECT_FALSE(expecting_b_);
 250 }
 251
 252 void CallbackPairChecker::RecordACalled() {
 253   EXPECT_FALSE(expecting_b_);
 254   expecting_b_ = true;
 255 }
 256
 257 void CallbackPairChecker::RecordBCalled() {
 258   EXPECT_TRUE(expecting_b_);
 259   expecting_b_ = false;
 260 }
 261
 262 }  // namespace media