Refactor MediaResource to be multi-stream capable

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 <memory>
 
 #include "base/at_exit.h"
 #include "base/bind.h"
@@ skipping 84 matching lines @@
   Streams streams_;
   std::vector<bool> end_of_stream_;
   std::vector<base::TimeDelta> last_read_timestamp_;
   std::vector<int> counts_;
 
   DISALLOW_COPY_AND_ASSIGN(StreamReader);
 };
 
 StreamReader::StreamReader(media::Demuxer* demuxer,
                            bool enable_bitstream_converter) {
-  media::DemuxerStream* stream =
-      demuxer->GetStream(media::DemuxerStream::AUDIO);
-  if (stream) {
+  std::vector<media::DemuxerStream*> streams = demuxer->GetStreams();
+  for (const auto& stream : streams) {
     streams_.push_back(stream);
     end_of_stream_.push_back(false);
     last_read_timestamp_.push_back(media::kNoTimestamp);
     counts_.push_back(0);
-  }
-
-  stream = demuxer->GetStream(media::DemuxerStream::VIDEO);
-  if (stream) {
-    streams_.push_back(stream);
-    end_of_stream_.push_back(false);
-    last_read_timestamp_.push_back(media::kNoTimestamp);
-    counts_.push_back(0);
-
-    if (enable_bitstream_converter)
+    if (enable_bitstream_converter && stream->type() == DemuxerStream::VIDEO)
       stream->EnableBitstreamConverter();
   }
 }
 
 StreamReader::~StreamReader() {}
 
 void StreamReader::Read() {
   int index = GetNextStreamIndexToRead();
   bool end_of_stream = false;
   base::TimeDelta timestamp;
@@ skipping 111 matching lines @@
 #if BUILDFLAG(USE_PROPRIETARY_CODECS)
   RunDemuxerBenchmark("bear-1280x720.mp4");
   RunDemuxerBenchmark("sfx.mp3");
 #endif
 #if BUILDFLAG(USE_PROPRIETARY_CODECS) && defined(OS_CHROMEOS)
   RunDemuxerBenchmark("bear.avi");
 #endif
 }
 
 }  // namespace media