decoder_api.h, ...: add "extern C"

src/decoder/AdPlugDecoderPlugin.cxx

@@ -20,9 +20,9 @@
 #include "config.h"
 #include "AdPlugDecoderPlugin.h"
 #include "tag_handler.h"
+#include "decoder_api.h"
 
 extern "C" {
-#include "decoder_api.h"
 #include "audio_check.h"
 }
 

src/decoder/FLACCommon.hxx

@@ -25,9 +25,9 @@
 #define MPD_FLAC_COMMON_HXX
 
 #include "FLACInput.hxx"
+#include "decoder_api.h"
 
 extern "C" {
-#include "decoder_api.h"
 #include "pcm_buffer.h"
 }
 

src/decoder/FLACIOHandle.hxx

@@ -21,10 +21,7 @@
 #define MPD_FLAC_IO_HANDLE_HXX
 
 #include "gcc.h"
-
-extern "C" {
 #include "input_stream.h"
-}
 
 #include <FLAC/callback.h>
 

src/decoder/FLACInput.cxx

@@ -19,12 +19,9 @@
 
 #include "config.h"
 #include "FLACInput.hxx"
-#include "gcc.h"
-
-extern "C" {
-#include "input_stream.h"
 #include "decoder_api.h"
-}
+#include "gcc.h"
+#include "input_stream.h"
 
 FLAC__StreamDecoderReadStatus
 FLACInput::Read(FLAC__byte buffer[], size_t *bytes)

src/decoder/FLACMetaData.cxx

@@ -22,12 +22,12 @@
 
 extern "C" {
 #include "XiphTags.h"
-#include "replay_gain_info.h"
-#include "tag.h"
 }
 
+#include "tag.h"
 #include "tag_handler.h"
 #include "tag_table.h"
+#include "replay_gain_info.h"
 
 #include <glib.h>
 

src/decoder/OggUtil.cxx

@@ -19,10 +19,7 @@
 
 #include "config.h"
 #include "OggUtil.hxx"
-
-extern "C" {
 #include "decoder_api.h"
-}
 
 bool
 OggFeed(ogg_sync_state &oy, struct decoder *decoder,

src/decoder/OpusDecoderPlugin.cxx

@@ -22,10 +22,10 @@
 #include "OpusHead.hxx"
 #include "OpusTags.hxx"
 #include "OggUtil.hxx"
+#include "decoder_api.h"
 
 extern "C" {
 #include "ogg_codec.h"
-#include "decoder_api.h"
 }
 
 #include "audio_check.h"

src/decoder/sidplay_decoder_plugin.cxx

@@ -18,9 +18,9 @@
  */
 
 #include "config.h"
+#include "../decoder_api.h"
 
 extern "C" {
-#include "../decoder_api.h"
 #include "tag_handler.h"
 }