media-internals: Differentiate error, info, and debug log messages

media/filters/chunk_demuxer.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_FILTERS_CHUNK_DEMUXER_H_
 #define MEDIA_FILTERS_CHUNK_DEMUXER_H_
 
 #include <deque>
 #include <map>
 #include <string>
@@ skipping 133 matching lines @@
   };
 
   typedef base::Closure InitSegmentReceivedCB;
 
   // |open_cb| Run when Initialize() is called to signal that the demuxer
   //   is ready to receive media data via AppenData().
   // |encrypted_media_init_data_cb| Run when the demuxer determines that an
   //   encryption key is needed to decrypt the content.
   // |enable_text| Process inband text tracks in the normal way when true,
   //   otherwise ignore them.
-  // |log_cb| Run when parsing error messages need to be logged to the error
-  //   console.
+  // |log_cb| Run when the demuxer needs to emit MediaLog messages.
   // |splice_frames_enabled| Indicates that it's okay to generate splice frames
   //   per the MSE specification.  Renderers must understand DecoderBuffer's
   //   splice_timestamp() field.
   ChunkDemuxer(const base::Closure& open_cb,
                const EncryptedMediaInitDataCB& encrypted_media_init_data_cb,
                const LogCB& log_cb,
                const scoped_refptr<MediaLog>& media_log,
                bool splice_frames_enabled);
   ~ChunkDemuxer() override;
 
@@ skipping 187 matching lines @@
   void ShutdownAllStreams();
 
   mutable base::Lock lock_;
   State state_;
   bool cancel_next_seek_;
 
   DemuxerHost* host_;
   base::Closure open_cb_;
   EncryptedMediaInitDataCB encrypted_media_init_data_cb_;
   bool enable_text_;
-  // Callback used to report error strings that can help the web developer
+  // Callback used to report log messages that can help the web developer
   // figure out what is wrong with the content.
   LogCB log_cb_;
   scoped_refptr<MediaLog> media_log_;
 
   PipelineStatusCB init_cb_;
   // Callback to execute upon seek completion.
   // TODO(wolenetz/acolwell): Protect against possible double-locking by first
   // releasing |lock_| before executing this callback. See
   // http://crbug.com/308226
   PipelineStatusCB seek_cb_;
@@ skipping 24 matching lines @@
 
   // Indicates that splice frame generation is enabled.
   const bool splice_frames_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(ChunkDemuxer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_CHUNK_DEMUXER_H_