media/base/demuxer_perftest.cc

   1 // Copyright 2013 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 "base/at_exit.h"
   6 #include "base/bind.h"
   7 #include "base/message_loop/message_loop.h"
   8 #include "base/strings/string_number_conversions.h"
   9 #include "base/time/time.h"
  10 #include "media/base/media.h"
  11 #include "media/base/media_log.h"
  12 #include "media/base/test_data_util.h"
  13 #include "media/filters/ffmpeg_demuxer.h"
  14 #include "media/filters/file_data_source.h"
  15 #include "testing/gtest/include/gtest/gtest.h"
  16 #include "testing/perf/perf_test.h"
  17
  18 namespace media {
  19
  20 static const int kBenchmarkIterations = 500;
  21
  22 class DemuxerHostImpl : public media::DemuxerHost {
  23  public:
  24   DemuxerHostImpl() {}
  25   virtual ~DemuxerHostImpl() {}
  26
  27   // DemuxerHost implementation.
  28   virtual void AddBufferedTimeRange(base::TimeDelta start,
  29                                     base::TimeDelta end) OVERRIDE {}
  30   virtual void SetDuration(base::TimeDelta duration) OVERRIDE {}
  31   virtual void OnDemuxerError(media::PipelineStatus error) OVERRIDE {}
  32   virtual void AddTextStream(media::DemuxerStream* text_stream,
  33                              const media::TextTrackConfig& config) OVERRIDE {}
  34   virtual void RemoveTextStream(media::DemuxerStream* text_stream) OVERRIDE {}
  35
  36  private:
  37   DISALLOW_COPY_AND_ASSIGN(DemuxerHostImpl);
  38 };
  39
  40 static void QuitLoopWithStatus(base::MessageLoop* message_loop,
  41                         media::PipelineStatus status) {
  42   CHECK_EQ(status, media::PIPELINE_OK);
  43   message_loop->PostTask(FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
  44 }
  45
  46 static void NeedKey(const std::string& type,
  47                     const std::vector<uint8>& init_data) {
  48   VLOG(0) << "File is encrypted.";
  49 }
  50
  51 typedef std::vector<media::DemuxerStream* > Streams;
  52
  53 // Simulates playback reading requirements by reading from each stream
  54 // present in |demuxer| in as-close-to-monotonically-increasing timestamp order.
  55 class StreamReader {
  56  public:
  57   StreamReader(media::Demuxer* demuxer, bool enable_bitstream_converter);
  58   ~StreamReader();
  59
  60   // Performs a single step read.
  61   void Read();
  62
  63   // Returns true when all streams have reached end of stream.
  64   bool IsDone();
  65
  66   int number_of_streams() { return static_cast<int>(streams_.size()); }
  67   const Streams& streams() { return streams_; }
  68   const std::vector<int>& counts() { return counts_; }
  69
  70  private:
  71   void OnReadDone(base::MessageLoop* message_loop,
  72                   bool* end_of_stream,
  73                   base::TimeDelta* timestamp,
  74                   media::DemuxerStream::Status status,
  75                   const scoped_refptr<media::DecoderBuffer>& buffer);
  76   int GetNextStreamIndexToRead();
  77
  78   Streams streams_;
  79   std::vector<bool> end_of_stream_;
  80   std::vector<base::TimeDelta> last_read_timestamp_;
  81   std::vector<int> counts_;
  82
  83   DISALLOW_COPY_AND_ASSIGN(StreamReader);
  84 };
  85
  86 StreamReader::StreamReader(media::Demuxer* demuxer,
  87                            bool enable_bitstream_converter) {
  88   media::DemuxerStream* stream =
  89       demuxer->GetStream(media::DemuxerStream::AUDIO);
  90   if (stream) {
  91     streams_.push_back(stream);
  92     end_of_stream_.push_back(false);
  93     last_read_timestamp_.push_back(media::kNoTimestamp());
  94     counts_.push_back(0);
  95   }
  96
  97   stream = demuxer->GetStream(media::DemuxerStream::VIDEO);
  98   if (stream) {
  99     streams_.push_back(stream);
 100     end_of_stream_.push_back(false);
 101     last_read_timestamp_.push_back(media::kNoTimestamp());
 102     counts_.push_back(0);
 103
 104     if (enable_bitstream_converter)
 105       stream->EnableBitstreamConverter();
 106   }
 107 }
 108
 109 StreamReader::~StreamReader() {}
 110
 111 void StreamReader::Read() {
 112   int index = GetNextStreamIndexToRead();
 113   bool end_of_stream = false;
 114   base::TimeDelta timestamp;
 115
 116   streams_[index]->Read(base::Bind(
 117       &StreamReader::OnReadDone, base::Unretained(this),
 118       base::MessageLoop::current(), &end_of_stream, &timestamp));
 119   base::MessageLoop::current()->Run();
 120
 121   CHECK(end_of_stream || timestamp != media::kNoTimestamp());
 122   end_of_stream_[index] = end_of_stream;
 123   last_read_timestamp_[index] = timestamp;
 124   counts_[index]++;
 125 }
 126
 127 bool StreamReader::IsDone() {
 128   for (size_t i = 0; i < end_of_stream_.size(); ++i) {
 129     if (!end_of_stream_[i])
 130       return false;
 131   }
 132   return true;
 133 }
 134
 135 void StreamReader::OnReadDone(
 136     base::MessageLoop* message_loop,
 137     bool* end_of_stream,
 138     base::TimeDelta* timestamp,
 139     media::DemuxerStream::Status status,
 140     const scoped_refptr<media::DecoderBuffer>& buffer) {
 141   CHECK_EQ(status, media::DemuxerStream::kOk);
 142   CHECK(buffer.get());
 143   *end_of_stream = buffer->end_of_stream();
 144   *timestamp = *end_of_stream ? media::kNoTimestamp() : buffer->timestamp();
 145   message_loop->PostTask(FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
 146 }
 147
 148 int StreamReader::GetNextStreamIndexToRead() {
 149   int index = -1;
 150   for (int i = 0; i < number_of_streams(); ++i) {
 151     // Ignore streams at EOS.
 152     if (end_of_stream_[i])
 153       continue;
 154
 155     // Use a stream if it hasn't been read from yet.
 156     if (last_read_timestamp_[i] == media::kNoTimestamp())
 157       return i;
 158
 159     if (index < 0 ||
 160         last_read_timestamp_[i] < last_read_timestamp_[index]) {
 161       index = i;
 162     }
 163   }
 164   CHECK_GE(index, 0) << "Couldn't find a stream to read";
 165   return index;
 166 }
 167
 168 static void RunDemuxerBenchmark(const std::string& filename) {
 169   base::FilePath file_path(GetTestDataFilePath(filename));
 170   double total_time = 0.0;
 171   for (int i = 0; i < kBenchmarkIterations; ++i) {
 172     // Setup.
 173     base::MessageLoop message_loop;
 174     DemuxerHostImpl demuxer_host;
 175     FileDataSource data_source;
 176     ASSERT_TRUE(data_source.Initialize(file_path));
 177
 178     Demuxer::NeedKeyCB need_key_cb = base::Bind(&NeedKey);
 179     FFmpegDemuxer demuxer(message_loop.message_loop_proxy(),
 180                           &data_source,
 181                           need_key_cb,
 182                           new MediaLog());
 183
 184     demuxer.Initialize(&demuxer_host,
 185                        base::Bind(&QuitLoopWithStatus, &message_loop),
 186                        false);
 187     message_loop.Run();
 188     StreamReader stream_reader(&demuxer, false);
 189
 190     // Benchmark.
 191     base::TimeTicks start = base::TimeTicks::HighResNow();
 192     while (!stream_reader.IsDone()) {
 193       stream_reader.Read();
 194     }
 195     base::TimeTicks end = base::TimeTicks::HighResNow();
 196     total_time += (end - start).InSecondsF();
 197     demuxer.Stop(base::Bind(
 198         &QuitLoopWithStatus, &message_loop, PIPELINE_OK));
 199     message_loop.Run();
 200   }
 201
 202   perf_test::PrintResult("demuxer_bench",
 203                          "",
 204                          filename,
 205                          kBenchmarkIterations / total_time,
 206                          "runs/s",
 207                          true);
 208 }
 209
 210 TEST(DemuxerPerfTest, Demuxer) {
 211   RunDemuxerBenchmark("bear.ogv");
 212   RunDemuxerBenchmark("bear-640x360.webm");
 213   RunDemuxerBenchmark("sfx_s16le.wav");
 214 #if defined(USE_PROPRIETARY_CODECS)
 215   RunDemuxerBenchmark("bear-1280x720.mp4");
 216   RunDemuxerBenchmark("sfx.mp3");
 217 #endif
 218 #if defined(OS_CHROMEOS)
 219   RunDemuxerBenchmark("bear.flac");
 220 #endif
 221 #if defined(USE_PROPRIETARY_CODECS) && defined(OS_CHROMEOS)
 222   RunDemuxerBenchmark("bear.avi");
 223 #endif
 224 }
 225
 226 }  // namespace media