Add MediaCodecAudioDecoder implementation

media/base/decoder_buffer.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/base/decoder_buffer.h"
 
 namespace media {
 
 // Allocates a block of memory which is padded for use with the SIMD
 // optimizations used by FFmpeg.
@@ skipping 81 matching lines @@
     << " encrypted: " << (decrypt_config_ != NULL)
     << " discard_padding (ms): (" << discard_padding_.first.InMilliseconds()
     << ", " << discard_padding_.second.InMilliseconds() << ")";
 
   if (decrypt_config_)
     s << " decrypt:" << (*decrypt_config_);
 
   return s.str();
 }
 
+std::string DecoderBuffer::AsShortString() {
+  if (end_of_stream()) {
+    return "EOS";
+  }
+
+  std::ostringstream s;
+  s << "timestamp: " << timestamp_;
+  if (is_key_frame_)
+    s << " KEY";
+  if (decrypt_config_)
+    s << " decrypt:" << (*decrypt_config_);
+
+  return s.str();
+}
+
 void DecoderBuffer::set_timestamp(base::TimeDelta timestamp) {
   DCHECK(!end_of_stream());
   timestamp_ = timestamp;
 }
 
 void DecoderBuffer::CopySideDataFrom(const uint8_t* side_data,
                                      size_t side_data_size) {
   if (side_data_size > 0) {
     side_data_size_ = side_data_size;
     side_data_.reset(AllocateFFmpegSafeBlock(side_data_size_));
     memcpy(side_data_.get(), side_data, side_data_size_);
   } else {
     side_data_.reset();
     side_data_size_ = 0;
   }
 }
 
 }  // namespace media