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-rw-r--r--libavcodec/atrac.h19
1 files changed, 17 insertions, 2 deletions
diff --git a/libavcodec/atrac.h b/libavcodec/atrac.h
index 8e9ba594a7..4923caa78a 100644
--- a/libavcodec/atrac.h
+++ b/libavcodec/atrac.h
@@ -1,6 +1,7 @@
/*
- * ATRAC common data
- * Copyright (c) 2009 Maxim Poliakovski
+ * common functions for the ATRAC family of decoders
+ *
+ * Copyright (c) 2009-2013 Maxim Poliakovski
* Copyright (c) 2009 Benjamin Larsson
*
* This file is part of Libav.
@@ -30,7 +31,21 @@
extern float ff_atrac_sf_table[64];
+/**
+ * Generate common tables.
+ */
void ff_atrac_generate_tables(void);
+
+/**
+ * Quadrature mirror synthesis filter.
+ *
+ * @param inlo lower part of spectrum
+ * @param inhi higher part of spectrum
+ * @param nIn size of spectrum buffer
+ * @param pOut out buffer
+ * @param delayBuf delayBuf buffer
+ * @param temp temp buffer
+ */
void ff_atrac_iqmf (float *inlo, float *inhi, unsigned int nIn, float *pOut, float *delayBuf, float *temp);
#endif /* AVCODEC_ATRAC_H */