Convert media constants to constexpr.

media/base/stream_parser_buffer.h

 // 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.
 
 #ifndef MEDIA_BASE_STREAM_PARSER_BUFFER_H_
 #define MEDIA_BASE_STREAM_PARSER_BUFFER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 81 matching lines @@
   // by hacks where a decode time is being used as a presentation time.
   base::TimeDelta ToPresentationTime() const { return ts_; }
 
  private:
   explicit DecodeTimestamp(base::TimeDelta timestamp) : ts_(timestamp) { }
 
   base::TimeDelta ts_;
 };
 
 MEDIA_EXPORT extern inline DecodeTimestamp kNoDecodeTimestamp() {
-  return DecodeTimestamp::FromPresentationTime(kNoTimestamp());
+  return DecodeTimestamp::FromPresentationTime(kNoTimestamp);
 }
 
 class MEDIA_EXPORT StreamParserBuffer : public DecoderBuffer {
  public:
   // Value used to signal an invalid decoder config ID.
   enum { kInvalidConfigId = -1 };
 
   typedef DemuxerStream::Type Type;
   typedef StreamParser::TrackId TrackId;
 
   static scoped_refptr<StreamParserBuffer> CreateEOSBuffer();
 
   static scoped_refptr<StreamParserBuffer> CopyFrom(const uint8_t* data,
                                                     int data_size,
                                                     bool is_key_frame,
                                                     Type type,
                                                     TrackId track_id);
   static scoped_refptr<StreamParserBuffer> CopyFrom(const uint8_t* data,
                                                     int data_size,
                                                     const uint8_t* side_data,
                                                     int side_data_size,
                                                     bool is_key_frame,
                                                     Type type,
                                                     TrackId track_id);
 
-  // Decode timestamp. If not explicitly set, or set to kNoTimestamp(), the
+  // Decode timestamp. If not explicitly set, or set to kNoTimestamp, the
   // value will be taken from the normal timestamp.
   DecodeTimestamp GetDecodeTimestamp() const;
   void SetDecodeTimestamp(DecodeTimestamp timestamp);
 
   // Gets/sets the ID of the decoder config associated with this buffer.
   int GetConfigId() const;
   void SetConfigId(int config_id);
 
   // Returns the config ID of this buffer if it has no splice buffers or
   // |index| is out of range.  Otherwise returns the config ID for the
   // buffer in |splice_buffers_| at position |index|.
   int GetSpliceBufferConfigId(size_t index) const;
 
   // Gets the parser's media type associated with this buffer. Value is
   // meaningless for EOS buffers.
   Type type() const { return type_; }
   const char* GetTypeName() const;
 
   // Gets the parser's track ID associated with this buffer. Value is
   // meaningless for EOS buffers.
   TrackId track_id() const { return track_id_; }
 
   // Converts this buffer to a splice buffer.  |pre_splice_buffers| must not
   // have any EOS buffers, must not have any splice buffers, nor must have any
   // buffer with preroll.
   //
   // |pre_splice_buffers| will be deep copied and each copy's splice_timestamp()
   // will be set to this buffer's splice_timestamp().  A copy of |this|, with a
-  // splice_timestamp() of kNoTimestamp(), will be added to the end of
+  // splice_timestamp() of kNoTimestamp, will be added to the end of
   // |splice_buffers_|.
   //
   // See the Audio Splice Frame Algorithm in the MSE specification for details.
   typedef StreamParser::BufferQueue BufferQueue;
   void ConvertToSpliceBuffer(const BufferQueue& pre_splice_buffers);
   const BufferQueue& splice_buffers() const { return splice_buffers_; }
 
   // Specifies a buffer which must be decoded prior to this one to ensure this
   // buffer can be accurately decoded.  The given buffer must be of the same
   // type, must not be a splice buffer, must not have any discard padding, and
@@ skipping 34 matching lines @@
   BufferQueue splice_buffers_;
   scoped_refptr<StreamParserBuffer> preroll_buffer_;
   bool is_duration_estimated_;
 
   DISALLOW_COPY_AND_ASSIGN(StreamParserBuffer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_STREAM_PARSER_BUFFER_H_