Media Metadata API: Extract raw tags for audio/video.

media/base/audio_video_metadata_extractor.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/base/audio_video_metadata_extractor.h"
 
 #include "base/bind.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/time/time.h"
@@ skipping 177 matching lines @@
 const std::string& AudioVideoMetadataExtractor::title() const {
   DCHECK(extracted_);
   return title_;
 }
 
 int AudioVideoMetadataExtractor::track() const {
   DCHECK(extracted_);
   return track_;
 }
 
+const std::map<std::string, std::string>&
+AudioVideoMetadataExtractor::raw_tags() const {
+  DCHECK(extracted_);
+  return raw_tags_;
+}
+
 void AudioVideoMetadataExtractor::ExtractDictionary(AVDictionary* metadata) {
   if (!metadata)
     return;
 
   AVDictionaryEntry* tag = NULL;
   while ((tag = av_dict_get(metadata, "", tag, AV_DICT_IGNORE_SUFFIX))) {
+    if (raw_tags_.find(tag->key) == raw_tags_.end())
+      raw_tags_[tag->key] = tag->value;
+
     if (ExtractInt(tag, "rotate", &rotation_)) continue;
     if (ExtractString(tag, "album", &album_)) continue;
     if (ExtractString(tag, "artist", &artist_)) continue;
     if (ExtractString(tag, "comment", &comment_)) continue;
     if (ExtractString(tag, "copyright", &copyright_)) continue;
     if (ExtractString(tag, "date", &date_)) continue;
     if (ExtractInt(tag, "disc", &disc_)) continue;
     if (ExtractString(tag, "encoder", &encoder_)) continue;
     if (ExtractString(tag, "encoded_by", &encoded_by_)) continue;
     if (ExtractString(tag, "genre", &genre_)) continue;
     if (ExtractString(tag, "language", &language_)) continue;
     if (ExtractString(tag, "title", &title_)) continue;
     if (ExtractInt(tag, "track", &track_)) continue;
   }
 }
 
 }  // namespace media