1 files changed, 122 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/aacdec/imdct_fxp.h b/media/libstagefright/codecs/aacdec/imdct_fxp.h
new file mode 100644
index 0000000..5837750
--- /dev/null
+++ b/media/libstagefright/codecs/aacdec/imdct_fxp.h
@@ -0,0 +1,122 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: imdct_fxp.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description: This extern had the incorrect length of the arrays.  The true
+ lengths are 128 and 1024, not 64 and 512.
+
+ Description:  Modified interface so a vector with extended precision is
+               returned, this is a 32 bit vector whose MSB 16 bits will be
+               extracted later.  Added copyright notice.
+
+ Description:   Modified function interface to accomodate the normalization
+                that now is done in this function.
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ Header file for function imdct_fxp()
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef IMDCT_FXP_H
+#define IMDCT_FXP_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; INCLUDES
+    ----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+    /*----------------------------------------------------------------------------
+    ; MACROS
+    ; Define module specific macros here
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES
+    ; Include all pre-processor statements here.
+    ----------------------------------------------------------------------------*/
+
+#define     LONG_WINDOW_TYPE  2048
+#define     SHORT_WINDOW_TYPE  256
+
+#define     ALL_ZEROS_BUFFER       31
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ; Declare variables used in this module but defined elsewhere
+    ----------------------------------------------------------------------------*/
+
+    extern const Int32 exp_rotation_N_256[64];
+    extern const Int32 exp_rotation_N_2048[512];
+    /*
+    extern const Int exp_rotation_N_256[128];
+    extern const Int exp_rotation_N_2048[1024];
+    */
+
+    /*----------------------------------------------------------------------------
+    ; SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; ENUMERATED TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; STRUCTURES TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; GLOBAL FUNCTION DEFINITIONS
+    ; Function Prototype declaration
+    ----------------------------------------------------------------------------*/
+    Int imdct_fxp(
+        Int32   data_quant[],
+        Int32   freq_2_time_buffer[],
+        const   Int     n,
+        Int     Q_format,
+        Int32   max
+    );
+
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif  /* IMDCT_FXP_H */