media/test/pipeline_integration_test_base.h

   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 #ifndef MEDIA_TEST_PIPELINE_INTEGRATION_TEST_BASE_H_
   6 #define MEDIA_TEST_PIPELINE_INTEGRATION_TEST_BASE_H_
   7
   8 #include "base/md5.h"
   9 #include "base/message_loop/message_loop.h"
  10 #include "media/audio/clockless_audio_sink.h"
  11 #include "media/audio/null_audio_sink.h"
  12 #include "media/base/audio_hardware_config.h"
  13 #include "media/base/demuxer.h"
  14 #include "media/base/media_keys.h"
  15 #include "media/base/pipeline.h"
  16 #include "media/base/text_track.h"
  17 #include "media/base/text_track_config.h"
  18 #include "media/base/video_frame.h"
  19 #include "media/renderers/video_renderer_impl.h"
  20 #include "testing/gmock/include/gmock/gmock.h"
  21
  22 namespace base {
  23 class FilePath;
  24 }
  25
  26 namespace media {
  27
  28 class CdmContext;
  29
  30 // Empty MD5 hash string.  Used to verify empty video tracks.
  31 extern const char kNullVideoHash[];
  32
  33 // Empty hash string.  Used to verify empty audio tracks.
  34 extern const char kNullAudioHash[];
  35
  36 // Dummy tick clock which advances extremely quickly (1 minute every time
  37 // NowTicks() is called).
  38 class DummyTickClock : public base::TickClock {
  39  public:
  40   DummyTickClock() : now_() {}
  41   ~DummyTickClock() override {}
  42   base::TimeTicks NowTicks() override;
  43
  44  private:
  45   base::TimeTicks now_;
  46 };
  47
  48 // Integration tests for Pipeline. Real demuxers, real decoders, and
  49 // base renderer implementations are used to verify pipeline functionality. The
  50 // renderers used in these tests rely heavily on the AudioRendererBase &
  51 // VideoRendererImpl implementations which contain a majority of the code used
  52 // in the real AudioRendererImpl & SkCanvasVideoRenderer implementations used in
  53 // the browser. The renderers in this test don't actually write data to a
  54 // display or audio device. Both of these devices are simulated since they have
  55 // little effect on verifying pipeline behavior and allow tests to run faster
  56 // than real-time.
  57 class PipelineIntegrationTestBase {
  58  public:
  59   PipelineIntegrationTestBase();
  60   virtual ~PipelineIntegrationTestBase();
  61
  62   bool WaitUntilOnEnded();
  63   PipelineStatus WaitUntilEndedOrError();
  64
  65   // Starts the pipeline (optionally with a CdmContext), returning the final
  66   // status code after it has started. |filename| points at a test file located
  67   // under media/test/data/.
  68   PipelineStatus Start(const std::string& filename);
  69   PipelineStatus Start(const std::string& filename, CdmContext* cdm_context);
  70
  71   // Starts the pipeline in a particular mode for advanced testing and
  72   // benchmarking purposes (e.g., underflow is disabled to ensure consistent
  73   // hashes).
  74   enum kTestType { kHashed, kClockless };
  75   PipelineStatus Start(const std::string& filename, kTestType test_type);
  76
  77   void Play();
  78   void Pause();
  79   bool Seek(base::TimeDelta seek_time);
  80   void Stop();
  81   bool WaitUntilCurrentTimeIsAfter(const base::TimeDelta& wait_time);
  82
  83   // Returns the MD5 hash of all video frames seen.  Should only be called once
  84   // after playback completes.  First time hashes should be generated with
  85   // --video-threads=1 to ensure correctness.  Pipeline must have been started
  86   // with hashing enabled.
  87   std::string GetVideoHash();
  88
  89   // Returns the hash of all audio frames seen.  Should only be called once
  90   // after playback completes.  Pipeline must have been started with hashing
  91   // enabled.
  92   std::string GetAudioHash();
  93
  94   // Returns the time taken to render the complete audio file.
  95   // Pipeline must have been started with clockless playback enabled.
  96   base::TimeDelta GetAudioTime();
  97
  98  protected:
  99   base::MessageLoop message_loop_;
 100   base::MD5Context md5_context_;
 101   bool hashing_enabled_;
 102   bool clockless_playback_;
 103   scoped_ptr<Demuxer> demuxer_;
 104   scoped_ptr<DataSource> data_source_;
 105   scoped_ptr<Pipeline> pipeline_;
 106   scoped_refptr<NullAudioSink> audio_sink_;
 107   scoped_refptr<ClocklessAudioSink> clockless_audio_sink_;
 108   bool ended_;
 109   PipelineStatus pipeline_status_;
 110   Demuxer::EncryptedMediaInitDataCB encrypted_media_init_data_cb_;
 111   VideoFrame::Format last_video_frame_format_;
 112   DummyTickClock dummy_clock_;
 113   AudioHardwareConfig hardware_config_;
 114   PipelineMetadata metadata_;
 115
 116   void OnSeeked(base::TimeDelta seek_time, PipelineStatus status);
 117   void OnStatusCallback(PipelineStatus status);
 118   void DemuxerEncryptedMediaInitDataCB(EmeInitDataType type,
 119                                        const std::vector<uint8>& init_data);
 120   void set_encrypted_media_init_data_cb(
 121       const Demuxer::EncryptedMediaInitDataCB& encrypted_media_init_data_cb) {
 122     encrypted_media_init_data_cb_ = encrypted_media_init_data_cb;
 123   }
 124
 125   void OnEnded();
 126   void OnError(PipelineStatus status);
 127   void QuitAfterCurrentTimeTask(const base::TimeDelta& quit_time);
 128
 129   // Creates Demuxer and sets |demuxer_|.
 130   void CreateDemuxer(const std::string& filename);
 131
 132   // Creates and returns a Renderer.
 133   virtual scoped_ptr<Renderer> CreateRenderer();
 134
 135   void OnVideoFramePaint(const scoped_refptr<VideoFrame>& frame);
 136
 137   MOCK_METHOD1(OnMetadata, void(PipelineMetadata));
 138   MOCK_METHOD1(OnBufferingStateChanged, void(BufferingState));
 139   MOCK_METHOD1(DecryptorAttached, void(bool));
 140   MOCK_METHOD2(OnAddTextTrack,
 141                void(const TextTrackConfig& config,
 142                     const AddTextTrackDoneCB& done_cb));
 143   MOCK_METHOD0(OnWaitingForDecryptionKey, void(void));
 144 };
 145
 146 }  // namespace media
 147
 148 #endif  // MEDIA_TEST_PIPELINE_INTEGRATION_TEST_BASE_H_