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Diffstat (limited to 'media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p2/src/armVCM4P2_GetVLCBits.c')
-rw-r--r--media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p2/src/armVCM4P2_GetVLCBits.c278
1 files changed, 0 insertions, 278 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p2/src/armVCM4P2_GetVLCBits.c b/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p2/src/armVCM4P2_GetVLCBits.c
deleted file mode 100644
index 953f597..0000000
--- a/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p2/src/armVCM4P2_GetVLCBits.c
+++ /dev/null
@@ -1,278 +0,0 @@
-/**
- *
- * File Name: armVCM4P2_GetVLCBits.c
- * OpenMAX DL: v1.0.2
- * Revision: 9641
- * Date: Thursday, February 7, 2008
- *
- * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved.
- *
- *
- *
- * Description:
- * Contains module for VLC get bits from the stream
- *
- */
-
-#include "omxtypes.h"
-#include "armOMX.h"
-
-#include "armVC.h"
-#include "armCOMM.h"
-#include "armCOMM_Bitstream.h"
-#include "armVCM4P2_ZigZag_Tables.h"
-#include "armVCM4P2_Huff_Tables_VLC.h"
-
-
-/**
- * Function: armVCM4P2_GetVLCBits
- *
- * Description:
- * Performs escape mode decision based on the run, run+, level, level+ and
- * last combinations.
- *
- * Remarks:
- *
- * Parameters:
- * [in] ppBitStream pointer to the pointer to the current byte in
- * the bit stream
- * [in] pBitOffset pointer to the bit position in the byte pointed
- * by *ppBitStream. Valid within 0 to 7
- * [in] start start indicates whether the encoding begins with
- * 0th element or 1st.
- * [in/out] pLast pointer to last status flag
- * [in] runBeginSingleLevelEntriesL0 The run value from which level
- * will be equal to 1: last == 0
- * [in] IndexBeginSingleLevelEntriesL0 Array index in the VLC table
- * pointing to the
- * runBeginSingleLevelEntriesL0
- * [in] runBeginSingleLevelEntriesL1 The run value from which level
- * will be equal to 1: last == 1
- * [in] IndexBeginSingleLevelEntriesL1 Array index in the VLC table
- * pointing to the
- * runBeginSingleLevelEntriesL0
- * [in] pRunIndexTableL0 Run Index table defined in
- * armVCM4P2_Huff_Tables_VLC.c for last == 0
- * [in] pVlcTableL0 VLC table for last == 0
- * [in] pRunIndexTableL1 Run Index table defined in
- * armVCM4P2_Huff_Tables_VLC.c for last == 1
- * [in] pVlcTableL1 VLC table for last == 1
- * [in] pLMAXTableL0 Level MAX table defined in
- * armVCM4P2_Huff_Tables_VLC.c for last == 0
- * [in] pLMAXTableL1 Level MAX table defined in
- * armVCM4P2_Huff_Tables_VLC.c for last == 1
- * [in] pRMAXTableL0 Run MAX table defined in
- * armVCM4P2_Huff_Tables_VLC.c for last == 0
- * [in] pRMAXTableL1 Run MAX table defined in
- * armVCM4P2_Huff_Tables_VLC.c for last == 1
- * [out]pDst pointer to the coefficient buffer of current
- * block. Should be 32-bit aligned
- *
- * Return Value:
- * Standard OMXResult result. See enumeration for possible result codes.
- *
- */
-
-OMXResult armVCM4P2_GetVLCBits (
- const OMX_U8 **ppBitStream,
- OMX_INT * pBitOffset,
- OMX_S16 * pDst,
- OMX_INT shortVideoHeader,
- OMX_U8 start,
- OMX_U8 * pLast,
- OMX_U8 runBeginSingleLevelEntriesL0,
- OMX_U8 maxIndexForMultipleEntriesL0,
- OMX_U8 maxRunForMultipleEntriesL1,
- OMX_U8 maxIndexForMultipleEntriesL1,
- const OMX_U8 * pRunIndexTableL0,
- const ARM_VLC32 *pVlcTableL0,
- const OMX_U8 * pRunIndexTableL1,
- const ARM_VLC32 *pVlcTableL1,
- const OMX_U8 * pLMAXTableL0,
- const OMX_U8 * pLMAXTableL1,
- const OMX_U8 * pRMAXTableL0,
- const OMX_U8 * pRMAXTableL1,
- const OMX_U8 * pZigzagTable
-)
-{
- OMX_U32 storeRun;
- OMX_U8 tabIndex, markerBit;
- OMX_S16 storeLevel;
- OMX_U16 unpackRetIndex;
- OMX_U8 i, fType, escape;
- OMX_U8 sign = 0;
-
- /* Unpacking the bitstream and RLD */
- for (i = start; i < 64;)
- {
- escape = armLookAheadBits(ppBitStream, pBitOffset, 7);
- if (escape != 3)
- {
- fType = 0; /* Not in escape mode */
- }
- else
- {
- armSkipBits (ppBitStream, pBitOffset, 7);
- if(shortVideoHeader)
- {
- *pLast = armGetBits(ppBitStream, pBitOffset, 1);
- storeRun = armGetBits(ppBitStream, pBitOffset, 6);
- storeLevel = armGetBits(ppBitStream, pBitOffset, 8);
-
- /* Ref to Table B-18 (c) in MPEG4 Standard- FLC code for */
- /* LEVEL when short_video_header is 1, the storeLevel is */
- /* a signed value and the sign and the unsigned value for */
- /* storeLevel need to be extracted and passed to arm */
- /* FillVLDBuffer function */
-
- sign = (storeLevel & 0x80);
- if(sign==0x80)
- {
- storeLevel=(storeLevel^0xff)+1;
- sign=1;
-
- }
-
- armRetDataErrIf( storeLevel == 0 || sign*storeLevel == 128 , OMX_Sts_Err); /* Invalid FLC */
- armRetDataErrIf((i + storeRun) >= 64, OMX_Sts_Err);
- armVCM4P2_FillVLDBuffer(
- storeRun,
- pDst,
- storeLevel,
- sign,
- *pLast,
- &i,
- pZigzagTable);
- return OMX_Sts_NoErr;
-
- }
- if (armGetBits(ppBitStream, pBitOffset, 1))
- {
- if (armGetBits(ppBitStream, pBitOffset, 1))
- {
- fType = 3;
- }
- else
- {
- fType = 2;
- }
- }
- else
- {
- fType = 1;
- }
- }
-
- if (fType < 3)
- {
- unpackRetIndex = armUnPackVLC32(ppBitStream, pBitOffset,
- pVlcTableL0);
- if (unpackRetIndex != ARM_NO_CODEBOOK_INDEX)
- {
- /* Decode run and level from the index */
- /* last = 0 */
- *pLast = 0;
- if (unpackRetIndex > maxIndexForMultipleEntriesL0)
- {
- storeLevel = 1;
- storeRun = (unpackRetIndex - maxIndexForMultipleEntriesL0)
- + runBeginSingleLevelEntriesL0;
- }
- else
- {
- tabIndex = 1;
- while (pRunIndexTableL0[tabIndex] <= unpackRetIndex)
- {
- tabIndex++;
- }
- storeRun = tabIndex - 1;
- storeLevel = unpackRetIndex - pRunIndexTableL0[tabIndex - 1] + 1;
- }
- sign = (OMX_U8) armGetBits(ppBitStream, pBitOffset, 1);
-
- if (fType == 1)
- {
- storeLevel = (armAbs(storeLevel) + pLMAXTableL0[storeRun]);
- }
- else if (fType == 2)
- {
- storeRun = storeRun + pRMAXTableL0[storeLevel-1] + 1;
- }
- }
- else
- {
- unpackRetIndex = armUnPackVLC32(ppBitStream, pBitOffset,
- pVlcTableL1);
-
- armRetDataErrIf(unpackRetIndex == ARM_NO_CODEBOOK_INDEX, OMX_Sts_Err);
-
- /* Decode run and level from the index */
- /* last = 1 */
- *pLast = 1;
- if (unpackRetIndex > maxIndexForMultipleEntriesL1)
- {
- storeLevel = 1;
- storeRun = (unpackRetIndex - maxIndexForMultipleEntriesL1)
- + maxRunForMultipleEntriesL1;
- }
- else
- {
- tabIndex = 1;
- while (pRunIndexTableL1[tabIndex] <= unpackRetIndex)
- {
- tabIndex++;
- }
- storeRun = tabIndex - 1;
- storeLevel = unpackRetIndex - pRunIndexTableL1[tabIndex - 1] + 1;
- }
- sign = (OMX_U8) armGetBits(ppBitStream, pBitOffset, 1);
-
- if (fType == 1)
- {
- storeLevel = (armAbs(storeLevel) + pLMAXTableL1[storeRun]);
- }
- else if (fType == 2)
- {
- storeRun = storeRun + pRMAXTableL1[storeLevel-1] + 1;
- }
- }
- armRetDataErrIf((i + storeRun) >= 64, OMX_Sts_Err);
- armVCM4P2_FillVLDBuffer(
- storeRun,
- pDst,
- storeLevel,
- sign,
- *pLast,
- &i,
- pZigzagTable);
- }
- else
- {
- *pLast = armGetBits(ppBitStream, pBitOffset, 1);
- storeRun = armGetBits(ppBitStream, pBitOffset, 6);
- armRetDataErrIf((i + storeRun) >= 64, OMX_Sts_Err);
- markerBit = armGetBits(ppBitStream, pBitOffset, 1);
- armRetDataErrIf( markerBit == 0, OMX_Sts_Err);
- storeLevel = armGetBits(ppBitStream, pBitOffset, 12);
- if (storeLevel & 0x800)
- {
- storeLevel -= 4096;
- }
- armRetDataErrIf( storeLevel == 0 || storeLevel == -2048 , OMX_Sts_Err); /* Invalid FLC */
- armGetBits(ppBitStream, pBitOffset, 1);
- armVCM4P2_FillVLDBuffer(
- storeRun,
- pDst,
- storeLevel,
- 0, /* Sign is not used, preprocessing done */
- *pLast,
- &i,
- pZigzagTable);
-
- }
- } /* End of forloop for i */
- return OMX_Sts_NoErr;
-}
-
-/* End of File */
-
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