MSE: Log more details during completing ChunkDemuxerStream reads

media/filters/chunk_demuxer.cc

 // Copyright (c) 2012 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/filters/chunk_demuxer.h"
 
 #include <algorithm>
 #include <limits>
 #include <list>
 
@@ skipping 1040 matching lines @@
   scoped_refptr<StreamParserBuffer> buffer;
 
   switch (state_) {
     case UNINITIALIZED:
       NOTREACHED();
       return;
     case RETURNING_DATA_FOR_READS:
       switch (stream_->GetNextBuffer(&buffer)) {
         case SourceBufferStream::kSuccess:
           status = DemuxerStream::kOk;
+          DVLOG(2) << __FUNCTION__ << ": returning kOk, type " << type_
+                   << ", dts " << buffer->GetDecodeTimestamp().InSecondsF()
+                   << ", pts " << buffer->timestamp().InSecondsF()
+                   << ", dur " << buffer->duration().InSecondsF()
+                   << ", key " << buffer->is_key_frame();
           break;
         case SourceBufferStream::kNeedBuffer:
           // Return early without calling |read_cb_| since we don't have
           // any data to return yet.
+          DVLOG(2) << __FUNCTION__ << ": returning kNeedBuffer, type "
+                   << type_;
           return;
         case SourceBufferStream::kEndOfStream:
           status = DemuxerStream::kOk;
           buffer = StreamParserBuffer::CreateEOSBuffer();
+          DVLOG(2) << __FUNCTION__ << ": returning kOk with EOS buffer, type "
+                   << type_;
           break;
         case SourceBufferStream::kConfigChange:
-          DVLOG(2) << "Config change reported to ChunkDemuxerStream.";
           status = kConfigChanged;
           buffer = NULL;
+          DVLOG(2) << __FUNCTION__ << ": returning kConfigChange, type "
+                   << type_;
           break;
       }
       break;
     case RETURNING_ABORT_FOR_READS:
       // Null buffers should be returned in this state since we are waiting
       // for a seek. Any buffers in the SourceBuffer should NOT be returned
       // because they are associated with the seek.
       status = DemuxerStream::kAborted;
       buffer = NULL;
+      DVLOG(2) << __FUNCTION__ << ": returning kAborted, type " << type_;
       break;
     case SHUTDOWN:
       status = DemuxerStream::kOk;
       buffer = StreamParserBuffer::CreateEOSBuffer();
+      DVLOG(2) << __FUNCTION__ << ": returning kOk with EOS buffer, type "
+               << type_;
       break;
   }
 
   base::ResetAndReturn(&read_cb_).Run(status, buffer);
 }
 
 ChunkDemuxer::ChunkDemuxer(const base::Closure& open_cb,
                            const NeedKeyCB& need_key_cb,
                            const LogCB& log_cb,
                            const scoped_refptr<MediaLog>& media_log,
@@ skipping 745 matching lines @@
 }
 
 void ChunkDemuxer::ShutdownAllStreams() {
   for (SourceStateMap::iterator itr = source_state_map_.begin();
        itr != source_state_map_.end(); ++itr) {
     itr->second->Shutdown();
   }
 }
 
 }  // namespace media