Implemented passing media track info from ffmpeg into blink

media/base/demuxer_perftest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/at_exit.h"
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/time/time.h"
 #include "build/build_config.h"
 #include "media/base/media.h"
 #include "media/base/media_log.h"
+#include "media/base/media_tracks.h"
 #include "media/base/test_data_util.h"
 #include "media/base/timestamp_constants.h"
 #include "media/filters/ffmpeg_demuxer.h"
 #include "media/filters/file_data_source.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/perf/perf_test.h"
 
 namespace media {
 
 static const int kBenchmarkIterations = 100;
@@ skipping 20 matching lines @@
                                media::PipelineStatus status) {
   CHECK_EQ(status, media::PIPELINE_OK);
   message_loop->PostTask(FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
 }
 
 static void OnEncryptedMediaInitData(EmeInitDataType init_data_type,
                                      const std::vector<uint8_t>& init_data) {
   VLOG(0) << "File is encrypted.";
 }
 
+static void OnMediaTracksUpdated(scoped_ptr<MediaTracks> tracks) {
+  VLOG(0) << "Got media tracks info, tracks = " << tracks->tracks().size();
+}
+
 typedef std::vector<media::DemuxerStream* > Streams;
 
 // Simulates playback reading requirements by reading from each stream
 // present in |demuxer| in as-close-to-monotonically-increasing timestamp order.
 class StreamReader {
  public:
   StreamReader(media::Demuxer* demuxer, bool enable_bitstream_converter);
   ~StreamReader();
 
   // Performs a single step read.
@@ skipping 109 matching lines @@
   double total_time = 0.0;
   for (int i = 0; i < kBenchmarkIterations; ++i) {
     // Setup.
     base::MessageLoop message_loop;
     DemuxerHostImpl demuxer_host;
     FileDataSource data_source;
     ASSERT_TRUE(data_source.Initialize(file_path));
 
     Demuxer::EncryptedMediaInitDataCB encrypted_media_init_data_cb =
         base::Bind(&OnEncryptedMediaInitData);
+    Demuxer::MediaTracksUpdatedCB tracks_updated_cb =
+        base::Bind(&OnMediaTracksUpdated);
     FFmpegDemuxer demuxer(message_loop.task_runner(), &data_source,
-                          encrypted_media_init_data_cb, new MediaLog());
+                          encrypted_media_init_data_cb, tracks_updated_cb,
+                          new MediaLog());
 
     demuxer.Initialize(&demuxer_host,
                        base::Bind(&QuitLoopWithStatus, &message_loop),
                        false);
     message_loop.Run();
     StreamReader stream_reader(&demuxer, false);
 
     // Benchmark.
     base::TimeTicks start = base::TimeTicks::Now();
     while (!stream_reader.IsDone()) {
@@ skipping 30 matching lines @@
 #endif
 #if defined(OS_CHROMEOS)
   RunDemuxerBenchmark("bear.flac");
 #endif
 #if defined(USE_PROPRIETARY_CODECS) && defined(OS_CHROMEOS)
   RunDemuxerBenchmark("bear.avi");
 #endif
 }
 
 }  // namespace media