Initial check in of AMR (NB and WB) decoders based on PV source code.

1 files changed, 166 insertions, 0 deletions

diff --git a/media/libstagefright/codecs/amrnb/dec/src/amrdecode.h b/media/libstagefright/codecs/amrnb/dec/src/amrdecode.h
new file mode 100644
index 0000000..db951b9
--- /dev/null
+++ b/media/libstagefright/codecs/amrnb/dec/src/amrdecode.h
@@ -0,0 +1,166 @@
+/* ------------------------------------------------------------------
+ * 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.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+    3GPP TS 26.073
+    ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+    Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Pathname: ./gsm-amr/c/include/amrdecode.h
+
+     Date: 05/23/2001
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description: Added BytesUsed table so that the code can allow for padding
+              at the end of each frame.
+
+ Description: Removed function prototypes for getbits, putbits,
+              put_frame_header_in, and get_frame_header_off. Removed
+              basicop_malloc.h and replaced it with typedef.h in the include
+              section. Fixed table entries for various SID modes. Removed
+              #defines because they are not used by AMRDecode function.
+              Removed tables not used by AMRDecode function.
+
+ Description: The data type Speech_Decode_FrameState is now being passed into
+              this function as a void pointer rather than a structure of type
+              Speech_Decode_FrameState.
+
+ Description: The variable decoder_state was renamed to state_data.
+
+ Description: Updated function prototype and header template.
+
+ Description: Added mode.h and frame_type_3gpp.h to include section, and
+              removed sp_dec.h.
+
+ Description: Removed definition of Changed BytesThisFrame[] table. Added
+              extern declaration for BytesThisFrame[] table.
+
+ Description: Added #define for WMF and IF2. Updated function prototype.
+
+ Description: Moved input format #defines and BytesThisFrame table to
+              dec_input_format_tab.h and dec_input_format_tab.c, respectively.
+              Updated function prototype.
+
+ Description: Updated function prototype of AMRDecode due to the removal of
+              *prev_mode_ptr. Added extern of If2BytesPerFrame
+
+ Description: Added #defines for WMF, IF2, and ETS input formats.
+
+ Description: Changed WmfBytesPerFrame to WmfDecBytesPerFrame, and
+              If2BytesPerFrame to If2DecBytesPerFrame.
+
+ Description: Renamed #defines for input format types to make it unique to the
+              decoder.
+
+ Description:  Replaced "int" and/or "char" with OSCL defined types.
+
+ Description: Moved _cplusplus #ifdef after Include section.
+
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the norm_s function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef ARMDECODE_H
+#define ARMDECODE_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include    "typedef.h"
+#include    "mode.h"
+#include    "frame_type_3gpp.h"
+#include    "pvamrnbdecoder_api.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; MACROS
+    ; Define module specific macros here
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES
+    ; Include all pre-processor statements here.
+    ----------------------------------------------------------------------------*/
+#define NUM_AMRSID_RXMODE_BITS   3
+#define AMRSID_RXMODE_BIT_OFFSET 36
+#define AMRSID_RXTYPE_BIT_OFFSET 35
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ; Declare variables used in this module but defined elsewhere
+    ----------------------------------------------------------------------------*/
+    extern const Word16 WmfDecBytesPerFrame[];
+    extern const Word16 If2DecBytesPerFrame[];
+
+    /*----------------------------------------------------------------------------
+    ; SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; ENUMERATED TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; STRUCTURES TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; GLOBAL FUNCTION DEFINITIONS
+    ; Function Prototype declaration
+    ----------------------------------------------------------------------------*/
+
+    Word16 AMRDecode(
+        void *state_data,
+        enum Frame_Type_3GPP  frame_type,
+        UWord8 *speech_bits_ptr,
+        Word16 *raw_pcm_buffer,
+        bitstream_format input_format
+    );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* _AMRDECODE_H_ */