Fix mp4 keyframe parsing, removing unused stss parsing.

media/formats/mp4/mp4_stream_parser.cc

 // Copyright 2014 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 "media/formats/mp4/mp4_stream_parser.h"
 
 #include "base/callback_helpers.h"
 #include "base/logging.h"
 #include "base/time/time.h"
 #include "media/base/audio_decoder_config.h"
@@ skipping 498 matching lines @@
     decrypt_config.reset(
         new DecryptConfig("1", "", std::vector<SubsampleEntry>()));
   }
 
   StreamParserBuffer::Type buffer_type = audio ? DemuxerStream::AUDIO :
       DemuxerStream::VIDEO;
 
   // TODO(wolenetz/acolwell): Validate and use a common cross-parser TrackId
   // type and allow multiple tracks for same media type, if applicable. See
   // https://crbug.com/341581.
-  //
-  // NOTE: MPEG's "random access point" concept is equivalent to the
-  // downstream code's "is keyframe" concept.
   scoped_refptr<StreamParserBuffer> stream_buf =
       StreamParserBuffer::CopyFrom(&frame_buf[0], frame_buf.size(),
-                                   runs_->is_random_access_point(),
+                                   runs_->is_keyframe(),
                                    buffer_type, 0);
 
   if (decrypt_config)
     stream_buf->set_decrypt_config(decrypt_config.Pass());
 
   stream_buf->set_duration(runs_->duration());
   stream_buf->set_timestamp(runs_->cts());
   stream_buf->SetDecodeTimestamp(runs_->dts());
 
   DVLOG(3) << "Pushing frame: aud=" << audio
            << ", key=" << runs_->is_keyframe()
-           << ", rap=" << runs_->is_random_access_point()
            << ", dur=" << runs_->duration().InMilliseconds()
            << ", dts=" << runs_->dts().InMilliseconds()
            << ", cts=" << runs_->cts().InMilliseconds()
            << ", size=" << runs_->sample_size();
 
   if (audio) {
     audio_buffers->push_back(stream_buf);
   } else {
     video_buffers->push_back(stream_buf);
   }
@@ skipping 76 matching lines @@
       runs.AdvanceSample();
     }
     runs.AdvanceRun();
   }
 
   return true;
 }
 
 }  // namespace mp4
 }  // namespace media