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-rw-r--r--media/libstagefright/codecs/aacdec/getbits.h346
1 files changed, 0 insertions, 346 deletions
diff --git a/media/libstagefright/codecs/aacdec/getbits.h b/media/libstagefright/codecs/aacdec/getbits.h
deleted file mode 100644
index e854be5..0000000
--- a/media/libstagefright/codecs/aacdec/getbits.h
+++ /dev/null
@@ -1,346 +0,0 @@
-/* ------------------------------------------------------------------
- * 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: getbits.h
-
-------------------------------------------------------------------------------
- REVISION HISTORY
-
- Description: Update comments for the structure
-
- Description: Move structur to another file
-
- Who: Date: MM/DD/YYYY
- Description:
-
-
-------------------------------------------------------------------------------
- INCLUDE DESCRIPTION
-
- Header file for the function getbits().
-
-------------------------------------------------------------------------------
-*/
-
-/*----------------------------------------------------------------------------
-; CONTINUE ONLY IF NOT ALREADY DEFINED
-----------------------------------------------------------------------------*/
-#ifndef GETBITS_H
-#define GETBITS_H
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
- /*----------------------------------------------------------------------------
- ; INCLUDES
- ----------------------------------------------------------------------------*/
-#include "pv_audio_type_defs.h"
-#include "ibstream.h"
-
- /*----------------------------------------------------------------------------
- ; MACROS
- ; Define module specific macros here
- ----------------------------------------------------------------------------*/
-
- /*----------------------------------------------------------------------------
- ; DEFINES
- ; Include all pre-processor statements here.
- ----------------------------------------------------------------------------*/
-
- /*----------------------------------------------------------------------------
- ; EXTERNAL VARIABLES REFERENCES
- ; Declare variables used in this module but defined elsewhere
- ----------------------------------------------------------------------------*/
-
- /*----------------------------------------------------------------------------
- ; SIMPLE TYPEDEF'S
- ----------------------------------------------------------------------------*/
-
- /*----------------------------------------------------------------------------
- ; ENUMERATED TYPEDEF'S
- ----------------------------------------------------------------------------*/
-
- /*----------------------------------------------------------------------------
- ; STRUCTURES TYPEDEF'S
- ----------------------------------------------------------------------------*/
-
- /*----------------------------------------------------------------------------
- ; GLOBAL FUNCTION DEFINITIONS
- ; Function Prototype declaration
- ----------------------------------------------------------------------------*/
-
-#define INBUF_ARRAY_INDEX_SHIFT (3)
-#define INBUF_BIT_WIDTH (1<<(INBUF_ARRAY_INDEX_SHIFT))
-#define INBUF_BIT_MODULO_MASK ((INBUF_BIT_WIDTH)-1)
-
-#define MAX_GETBITS (25)
-
-#define CHECK_INPUT_BUFFER_LIMITS 1
-
- __inline UInt32 getbits(
- const UInt neededBits,
- BITS *pInputStream)
- {
- UInt32 returnValue = 0;
- UInt offset;
- UInt bitIndex;
- UChar *pElem; /* Needs to be same type as pInput->pBuffer */
-
- offset = (pInputStream->usedBits) >> INBUF_ARRAY_INDEX_SHIFT;
-
- pElem = pInputStream->pBuffer + offset;
-
-#if CHECK_INPUT_BUFFER_LIMITS
-
- offset = pInputStream->inputBufferCurrentLength - offset;
- /* check if access to input buffer does not go beyond boundaries */
- if (offset > 3)
- {
- returnValue = (((UInt32) * (pElem)) << 24) |
- (((UInt32) * (pElem + 1)) << 16) |
- (((UInt32) * (pElem + 2)) << 8) |
- ((UInt32) * (pElem + 3));
- }
- else /* then access only available bytes */
- {
- /* Access to the bitstream beyond frame boundaries are not allowed,
- * Here, only what was available before the end of the frame will
- * be processed. Non-accessible bytes will be filled in with zeros.
- * Zero values guarantees that the data structures are filled in with values
- * that eventually will signal an error (like invalid parameters) or that allow
- * completion of the parsing routine.
- * Overrun is detected on file pvmp4audiodecodeframe.cpp.
- */
- switch (offset)
- {
- case 3:
- returnValue = (((UInt32) * (pElem + 2)) << 8);
- case 2:
- returnValue |= (((UInt32) * (pElem + 1)) << 16);
- case 1:
- returnValue |= (((UInt32) * (pElem)) << 24);
- default:
- break;
- }
- }
-
-
-#else
-
- returnValue = (((UInt32) * (pElem)) << 24) |
- (((UInt32) * (pElem + 1)) << 16) |
- (((UInt32) * (pElem + 2)) << 8) |
- ((UInt32) * (pElem + 3));
-#endif
-
- /* Remove extra high bits by shifting up */
- bitIndex = (UInt)((pInputStream->usedBits) & INBUF_BIT_MODULO_MASK);
-
- /* This line is faster way to mask off the high bits. */
- returnValue = returnValue << (bitIndex);
-
- /* Move the field down. */
- returnValue = returnValue >> (32 - neededBits);
-
- pInputStream->usedBits += neededBits;
-
- return (returnValue);
-
- }
-
-
-
- __inline UInt get1bits(
- BITS *pInputStream)
- {
- UInt returnValue;
- UInt offset;
- UInt bitIndex;
- UChar *pElem; /* Needs to be same type as pInput->pBuffer */
-
- offset = (pInputStream->usedBits) >> INBUF_ARRAY_INDEX_SHIFT;
-
- pElem = pInputStream->pBuffer + offset;
-
-#if CHECK_INPUT_BUFFER_LIMITS
- returnValue = (offset < pInputStream->inputBufferCurrentLength) ? ((UInt) * (pElem)) : 0;
-#else
- returnValue = ((UInt32) * (pElem));
-#endif
-
-
- /* Remove extra high bits by shifting up */
- bitIndex = (UInt)((pInputStream->usedBits++) & INBUF_BIT_MODULO_MASK);
-
- /* This line is faster way to mask off the high bits. */
- returnValue = 0xFF & (returnValue << (bitIndex));
-
- /* Move the field down. */
-
- return ((UInt)(returnValue >> 7));
-
- }
-
-
-
- __inline UInt get9_n_lessbits(
- const UInt neededBits,
- BITS *pInputStream)
-
- {
- UInt returnValue;
- UInt offset;
- UInt bitIndex;
- UChar *pElem; /* Needs to be same type as pInput->pBuffer */
-
- offset = (pInputStream->usedBits) >> INBUF_ARRAY_INDEX_SHIFT;
-
- pElem = pInputStream->pBuffer + offset;
-
-#if CHECK_INPUT_BUFFER_LIMITS
-
-
- offset = pInputStream->inputBufferCurrentLength - offset;
- /* check if access to input buffer does not go beyond boundaries */
- if (offset > 1)
- {
- returnValue = (((UInt32) * (pElem)) << 8) |
- ((UInt32) * (pElem + 1));
- }
- else /* then access only available bytes */
- {
- /* Access to the bitstream beyond frame boundaries are not allowed,
- * Here, only what was available before the end of the frame will
- * be processed. Non-accessible bytes will be filled in with zeros.
- * Zero values guarantees that the data structures are filled in with values
- * that eventually will signal an error (like invalid parameters) or that allow
- * completion of the parsing routine.
- * Overrun is detected on file pvmp4audiodecodeframe.cpp
- */
- switch (offset)
- {
- case 1:
- returnValue = (((UInt32) * (pElem)) << 8);
- break;
- default:
- returnValue = 0;
- break;
- }
- }
-
-
-#else
- returnValue = (((UInt32) * (pElem)) << 8) |
- ((UInt32) * (pElem + 1)) ;
-#endif
-
- /* Remove extra high bits by shifting up */
- bitIndex = (UInt)((pInputStream->usedBits) & INBUF_BIT_MODULO_MASK);
-
- pInputStream->usedBits += neededBits;
-
- /* This line is faster way to mask off the high bits. */
- returnValue = 0xFFFF & (returnValue << (bitIndex));
-
- /* Move the field down. */
-
- return (UInt)(returnValue >> (16 - neededBits));
-
- }
-
- __inline UInt32 get17_n_lessbits(
- const UInt neededBits,
- BITS *pInputStream)
- {
- UInt32 returnValue;
- UInt offset;
- UInt bitIndex;
- UChar *pElem; /* Needs to be same type as pInput->pBuffer */
-
- offset = (pInputStream->usedBits) >> INBUF_ARRAY_INDEX_SHIFT;
-
- pElem = pInputStream->pBuffer + offset;
-
-#if CHECK_INPUT_BUFFER_LIMITS
-
- offset = pInputStream->inputBufferCurrentLength - offset;
- /* check if access to input buffer does not go beyond boundaries */
-
- if (offset > 2)
- {
- returnValue = (((UInt32) * (pElem)) << 16) |
- (((UInt32) * (pElem + 1)) << 8) |
- ((UInt32) * (pElem + 2));
- }
- else /* then access only available bytes */
- {
- /* Access to the bitstream beyond frame boundaries are not allowed,
- * Here, only what was available before the end of the frame will
- * be processed. Non-accessible bytes will be filled in with zeros.
- * Zero values guarantees that the data structures are filled in with values
- * that eventually will signal an error (like invalid parameters) or that allow
- * completion of the parsing routine.
- * Overrun is detected on file pvmp4audiodecodeframe.cpp
- */
- returnValue = 0;
- switch (offset)
- {
- case 2:
- returnValue = (((UInt32) * (pElem + 1)) << 8);
- case 1:
- returnValue |= (((UInt32) * (pElem)) << 16);
- default:
- break;
- }
- }
-
-#else
-
- returnValue = (((UInt32) * (pElem)) << 16) |
- (((UInt32) * (pElem + 1)) << 8) |
- ((UInt32) * (pElem + 2));
-#endif
-
- /* Remove extra high bits by shifting up */
- bitIndex = (UInt)((pInputStream->usedBits) & INBUF_BIT_MODULO_MASK);
-
- /* This line is faster way to mask off the high bits. */
- returnValue = 0xFFFFFF & (returnValue << (bitIndex));
-
- /* Move the field down. */
- returnValue = returnValue >> (24 - neededBits);
-
- pInputStream->usedBits += neededBits;
-
- return (returnValue);
-
- }
-
-#ifdef __cplusplus
-}
-#endif
-
-/*----------------------------------------------------------------------------
-; END
-----------------------------------------------------------------------------*/
-#endif /* GETBITS_H*/
-
-
generated by cgit v1.1 at 2024-06-07 08:13:38 +0000