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      1 // Copyright 2014 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 // Joint LogSerializer and LogDeserializer testing to make sure they stay in
      6 // sync.
      7 
      8 #include "base/memory/scoped_ptr.h"
      9 #include "media/cast/logging/log_deserializer.h"
     10 #include "media/cast/logging/log_serializer.h"
     11 #include "media/cast/logging/logging_defines.h"
     12 #include "media/cast/logging/proto/proto_utils.h"
     13 #include "testing/gtest/include/gtest/gtest.h"
     14 
     15 using media::cast::proto::AggregatedFrameEvent;
     16 using media::cast::proto::AggregatedPacketEvent;
     17 using media::cast::proto::BasePacketEvent;
     18 using media::cast::proto::LogMetadata;
     19 
     20 namespace {
     21 
     22 const media::cast::CastLoggingEvent kVideoFrameEvents[] = {
     23     media::cast::FRAME_CAPTURE_BEGIN,  media::cast::FRAME_CAPTURE_END,
     24     media::cast::FRAME_ENCODED, media::cast::FRAME_DECODED,
     25     media::cast::FRAME_PLAYOUT };
     26 
     27 const media::cast::CastLoggingEvent kVideoPacketEvents[] = {
     28     media::cast::PACKET_SENT_TO_NETWORK, media::cast::PACKET_RECEIVED};
     29 
     30 // The frame event fields cycle through these numbers.
     31 const int kEncodedFrameSize[] = {512, 425, 399, 400, 237};
     32 const int kDelayMillis[] = {15, 4, 8, 42, 23, 16};
     33 
     34 const int kMaxSerializedBytes = 10000;
     35 
     36 }
     37 
     38 namespace media {
     39 namespace cast {
     40 
     41 class SerializeDeserializeTest : public ::testing::Test {
     42  protected:
     43   SerializeDeserializeTest()
     44       : serialized_(new char[kMaxSerializedBytes]), output_bytes_(0) {}
     45 
     46   virtual ~SerializeDeserializeTest() {}
     47 
     48   void Init() {
     49     metadata_.set_first_rtp_timestamp(12345678 * 90);
     50     metadata_.set_is_audio(false);
     51     metadata_.set_num_frame_events(10);
     52     metadata_.set_num_packet_events(10);
     53 
     54     int64 event_time_ms = 0;
     55     // Insert frame and packet events with RTP timestamps 0, 90, 180, ...
     56     for (int i = 0; i < metadata_.num_frame_events(); i++) {
     57       linked_ptr<AggregatedFrameEvent> frame_event(new AggregatedFrameEvent);
     58       frame_event->set_relative_rtp_timestamp(i * 90);
     59       for (uint32 event_index = 0; event_index < arraysize(kVideoFrameEvents);
     60            ++event_index) {
     61         frame_event->add_event_type(
     62             ToProtoEventType(kVideoFrameEvents[event_index]));
     63         frame_event->add_event_timestamp_ms(event_time_ms);
     64         event_time_ms += 1024;
     65       }
     66       frame_event->set_encoded_frame_size(
     67           kEncodedFrameSize[i % arraysize(kEncodedFrameSize)]);
     68       frame_event->set_delay_millis(kDelayMillis[i % arraysize(kDelayMillis)]);
     69 
     70       frame_event_list_.push_back(frame_event);
     71     }
     72 
     73     event_time_ms = 0;
     74     int packet_id = 0;
     75     for (int i = 0; i < metadata_.num_packet_events(); i++) {
     76       linked_ptr<AggregatedPacketEvent> packet_event(new AggregatedPacketEvent);
     77       packet_event->set_relative_rtp_timestamp(i * 90);
     78       for (int j = 0; j < 10; j++) {
     79         BasePacketEvent* base_event = packet_event->add_base_packet_event();
     80         base_event->set_packet_id(packet_id);
     81         packet_id++;
     82         for (uint32 event_index = 0;
     83              event_index < arraysize(kVideoPacketEvents);
     84              ++event_index) {
     85           base_event->add_event_type(
     86               ToProtoEventType(kVideoPacketEvents[event_index]));
     87           base_event->add_event_timestamp_ms(event_time_ms);
     88           event_time_ms += 256;
     89         }
     90       }
     91       packet_event_list_.push_back(packet_event);
     92     }
     93   }
     94 
     95   void Verify(const DeserializedLog& video_log) {
     96     const LogMetadata& returned_metadata = video_log.metadata;
     97     const FrameEventMap& returned_frame_events = video_log.frame_events;
     98     const PacketEventMap& returned_packet_events = video_log.packet_events;
     99 
    100     EXPECT_EQ(metadata_.SerializeAsString(),
    101               returned_metadata.SerializeAsString());
    102 
    103     // Check that the returned map is equal to the original map.
    104     EXPECT_EQ(frame_event_list_.size(), returned_frame_events.size());
    105     for (FrameEventMap::const_iterator frame_it = returned_frame_events.begin();
    106          frame_it != returned_frame_events.end();
    107          ++frame_it) {
    108       FrameEventList::iterator original_it = frame_event_list_.begin();
    109       ASSERT_NE(frame_event_list_.end(), original_it);
    110       // Compare protos by serializing and checking the bytes.
    111       EXPECT_EQ((*original_it)->SerializeAsString(),
    112                 frame_it->second->SerializeAsString());
    113       frame_event_list_.erase(frame_event_list_.begin());
    114     }
    115     EXPECT_TRUE(frame_event_list_.empty());
    116 
    117     EXPECT_EQ(packet_event_list_.size(), returned_packet_events.size());
    118     for (PacketEventMap::const_iterator packet_it =
    119              returned_packet_events.begin();
    120          packet_it != returned_packet_events.end();
    121          ++packet_it) {
    122       PacketEventList::iterator original_it = packet_event_list_.begin();
    123       ASSERT_NE(packet_event_list_.end(), original_it);
    124       // Compare protos by serializing and checking the bytes.
    125       EXPECT_EQ((*original_it)->SerializeAsString(),
    126                 packet_it->second->SerializeAsString());
    127       packet_event_list_.erase(packet_event_list_.begin());
    128     }
    129     EXPECT_TRUE(packet_event_list_.empty());
    130   }
    131 
    132   LogMetadata metadata_;
    133   FrameEventList frame_event_list_;
    134   PacketEventList packet_event_list_;
    135   scoped_ptr<char[]> serialized_;
    136   int output_bytes_;
    137 };
    138 
    139 TEST_F(SerializeDeserializeTest, Uncompressed) {
    140   bool compressed = false;
    141   Init();
    142 
    143   bool success = SerializeEvents(metadata_,
    144                                  frame_event_list_,
    145                                  packet_event_list_,
    146                                  compressed,
    147                                  kMaxSerializedBytes,
    148                                  serialized_.get(),
    149                                  &output_bytes_);
    150   ASSERT_TRUE(success);
    151   ASSERT_GT(output_bytes_, 0);
    152 
    153   DeserializedLog audio_log;
    154   DeserializedLog video_log;
    155   success = DeserializeEvents(
    156       serialized_.get(), output_bytes_, compressed, &audio_log, &video_log);
    157   ASSERT_TRUE(success);
    158 
    159   Verify(video_log);
    160 }
    161 
    162 TEST_F(SerializeDeserializeTest, UncompressedInsufficientSpace) {
    163   bool compressed = false;
    164   Init();
    165   serialized_.reset(new char[100]);
    166   bool success = SerializeEvents(metadata_,
    167                                  frame_event_list_,
    168                                  packet_event_list_,
    169                                  compressed,
    170                                  100,
    171                                  serialized_.get(),
    172                                  &output_bytes_);
    173   EXPECT_FALSE(success);
    174   EXPECT_EQ(0, output_bytes_);
    175 }
    176 
    177 TEST_F(SerializeDeserializeTest, Compressed) {
    178   bool compressed = true;
    179   Init();
    180   bool success = SerializeEvents(metadata_,
    181                                  frame_event_list_,
    182                                  packet_event_list_,
    183                                  compressed,
    184                                  kMaxSerializedBytes,
    185                                  serialized_.get(),
    186                                  &output_bytes_);
    187   ASSERT_TRUE(success);
    188   ASSERT_GT(output_bytes_, 0);
    189 
    190   DeserializedLog audio_log;
    191   DeserializedLog video_log;
    192   success = DeserializeEvents(
    193       serialized_.get(), output_bytes_, compressed, &audio_log, &video_log);
    194   ASSERT_TRUE(success);
    195   Verify(video_log);
    196 }
    197 
    198 TEST_F(SerializeDeserializeTest, CompressedInsufficientSpace) {
    199   bool compressed = true;
    200   Init();
    201   serialized_.reset(new char[100]);
    202   bool success = SerializeEvents(metadata_,
    203                                  frame_event_list_,
    204                                  packet_event_list_,
    205                                  compressed,
    206                                  100,
    207                                  serialized_.get(),
    208                                  &output_bytes_);
    209   EXPECT_FALSE(success);
    210   EXPECT_EQ(0, output_bytes_);
    211 }
    212 
    213 }  // namespace cast
    214 }  // namespace media
    215