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      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 }  // namespace media
    246