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-rw-r--r--media/audio/audio_util.h43
1 files changed, 22 insertions, 21 deletions
diff --git a/media/audio/audio_util.h b/media/audio/audio_util.h
index a2fa15e..d95a646 100644
--- a/media/audio/audio_util.h
+++ b/media/audio/audio_util.h
@@ -8,6 +8,7 @@
#include <vector>
#include "base/basictypes.h"
+#include "media/base/media_export.h"
namespace base {
class SharedMemory;
@@ -30,11 +31,11 @@ namespace media {
// 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_EXPORT 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
@@ -49,11 +50,11 @@ bool AdjustVolume(void* buf,
// 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_EXPORT 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
@@ -74,23 +75,23 @@ bool DeinterleaveAudioChannel(void* source,
// 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_EXPORT void InterleaveFloatToInt16(const std::vector<float*>& source,
+ int16* destination,
+ size_t number_of_frames);
// Returns the default audio hardware sample-rate.
-double GetAudioHardwareSampleRate();
+MEDIA_EXPORT double GetAudioHardwareSampleRate();
// Functions that handle data buffer passed between processes in the shared
// memory. Called on both IPC sides.
-uint32 TotalSharedMemorySizeInBytes(uint32 packet_size);
-uint32 PacketSizeSizeInBytes(uint32 shared_memory_created_size);
-uint32 GetActualDataSizeInBytes(base::SharedMemory* shared_memory,
- uint32 shared_memory_size);
-void SetActualDataSizeInBytes(base::SharedMemory* shared_memory,
- uint32 shared_memory_size,
- uint32 actual_data_size);
+MEDIA_EXPORT uint32 TotalSharedMemorySizeInBytes(uint32 packet_size);
+MEDIA_EXPORT uint32 PacketSizeSizeInBytes(uint32 shared_memory_created_size);
+MEDIA_EXPORT uint32 GetActualDataSizeInBytes(base::SharedMemory* shared_memory,
+ uint32 shared_memory_size);
+MEDIA_EXPORT void SetActualDataSizeInBytes(base::SharedMemory* shared_memory,
+ uint32 shared_memory_size,
+ uint32 actual_data_size);
} // namespace media