Create media.dll / libmedia.so for the component build

media/audio/audio_util.h

Index: media/audio/audio_util.h
===================================================================
--- media/audio/audio_util.h	(revision 94484)
+++ media/audio/audio_util.h	(working copy)
@@ -8,6 +8,7 @@
 #include <vector>
 
 #include "base/basictypes.h"
+#include "media/base/media_api.h"
 
 namespace media {
 
@@ -26,11 +27,11 @@
 // formats.
 // The buffer is modified in-place to avoid memory management, as this
 // function may be called in performance critical code.
-bool AdjustVolume(void* buf,
-                  size_t buflen,
-                  int channels,
-                  int bytes_per_sample,
-                  float volume);
+MEDIA_API bool AdjustVolume(void* buf,
+                            size_t buflen,
+                            int channels,
+                            int bytes_per_sample,
+                            float volume);
 
 // FoldChannels() does a software multichannel folding down to stereo.
 // Channel order is assumed to be 5.1 Dolby standard which is
@@ -45,11 +46,11 @@
 // volume.
 // The buffer is modified in-place to avoid memory management, as this
 // function may be called in performance critical code.
-bool FoldChannels(void* buf,
-                  size_t buflen,
-                  int channels,
-                  int bytes_per_sample,
-                  float volume);
+MEDIA_API bool FoldChannels(void* buf,
+                            size_t buflen,
+                            int channels,
+                            int bytes_per_sample,
+                            float volume);
 
 // DeinterleaveAudioChannel() takes interleaved audio buffer |source|
 // of the given |sample_fmt| and |number_of_channels| and extracts
@@ -70,9 +71,9 @@
 // The size of the |source| vector determines the number of channels.
 // The |destination| buffer is assumed to be large enough to hold the
 // result. Thus it must be at least size: number_of_frames * source.size()
-void InterleaveFloatToInt16(const std::vector<float*>& source,
-                            int16* destination,
-                            size_t number_of_frames);
+MEDIA_API void InterleaveFloatToInt16(const std::vector<float*>& source,
+                                      int16* destination,
+                                      size_t number_of_frames);
 
 // Reorder PCM from AAC layout to Core Audio 5.1 layout.
 // TODO(fbarchard): Switch layout when ffmpeg is updated.
@@ -92,7 +93,7 @@
 }
 
 // Returns the default audio hardware sample-rate.
-double GetAudioHardwareSampleRate();
+MEDIA_API double GetAudioHardwareSampleRate();
 
 }  // namespace media