Move FilterType into MediaFilterCollection

media/base/media_filter_collection.cc

 // Copyright (c) 2010 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/media_filter_collection.h"
 
 namespace media {
 
 MediaFilterCollection::MediaFilterCollection() {
 }
 
-void MediaFilterCollection::AddFilter(MediaFilter* filter) {
-  filters_.push_back(filter);
+void MediaFilterCollection::AddDataSource(DataSource* filter) {
+  AddFilter(DATA_SOURCE, filter);
+}
+
+void MediaFilterCollection::AddDemuxer(Demuxer* filter) {
+  AddFilter(DEMUXER, filter);
+}
+
+void MediaFilterCollection::AddVideoDecoder(VideoDecoder* filter) {
+  AddFilter(VIDEO_DECODER, filter);
+}
+
+void MediaFilterCollection::AddAudioDecoder(AudioDecoder* filter) {
+  AddFilter(AUDIO_DECODER, filter);
+}
+
+void MediaFilterCollection::AddVideoRenderer(VideoRenderer* filter) {
+  AddFilter(VIDEO_RENDERER, filter);
+}
+
+void MediaFilterCollection::AddAudioRenderer(AudioRenderer* filter) {
+  AddFilter(AUDIO_RENDERER, filter);
 }
 
 bool MediaFilterCollection::IsEmpty() const {
   return filters_.empty();
 }
 
 void MediaFilterCollection::Clear() {
   filters_.clear();
 }
 
+void MediaFilterCollection::SelectDataSource(
+    scoped_refptr<DataSource>* filter_out) {
+  SelectFilter<DATA_SOURCE>(filter_out);
+}
+
+void MediaFilterCollection::SelectDemuxer(scoped_refptr<Demuxer>* filter_out) {
+  SelectFilter<DEMUXER>(filter_out);
+}
+
+void MediaFilterCollection::SelectVideoDecoder(
+    scoped_refptr<VideoDecoder>* filter_out) {
+  SelectFilter<VIDEO_DECODER>(filter_out);
+}
+
+void MediaFilterCollection::SelectAudioDecoder(
+    scoped_refptr<AudioDecoder>* filter_out) {
+  SelectFilter<AUDIO_DECODER>(filter_out);
+}
+
+void MediaFilterCollection::SelectVideoRenderer(
+    scoped_refptr<VideoRenderer>* filter_out) {
+  SelectFilter<VIDEO_RENDERER>(filter_out);
+}
+
+void MediaFilterCollection::SelectAudioRenderer(
+    scoped_refptr<AudioRenderer>* filter_out) {
+  SelectFilter<AUDIO_RENDERER>(filter_out);
+}
+
+void MediaFilterCollection::AddFilter(FilterType filter_type,
+                                      MediaFilter* filter) {
+  filters_.push_back(FilterListElement(filter_type, filter));
+}
+
+template<MediaFilterCollection::FilterType filter_type, class Filter>
+void MediaFilterCollection::SelectFilter(scoped_refptr<Filter>* filter_out) {
+  scoped_refptr<MediaFilter> filter;
+  SelectFilter(filter_type, &filter);
+  *filter_out = reinterpret_cast<Filter*>(filter.get());
+}
+
 void MediaFilterCollection::SelectFilter(
     FilterType filter_type,
     scoped_refptr<MediaFilter>* filter_out)  {
 
-  std::list<scoped_refptr<MediaFilter> >::iterator it = filters_.begin();
+  FilterList::iterator it = filters_.begin();
   while (it != filters_.end()) {
-    if ((*it)->filter_type() == filter_type)
+    if (it->first == filter_type)
       break;
     ++it;
   }
 
   if (it != filters_.end()) {
-    *filter_out = it->get();
+    *filter_out = it->second.get();
     filters_.erase(it);
   }
 }
 
 }  // namespace media