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Diffstat (limited to 'media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_IntraDCVLC_s.s')
| -rwxr-xr-x | media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_IntraDCVLC_s.s | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_IntraDCVLC_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_IntraDCVLC_s.s deleted file mode 100755 index 778aaf2..0000000 --- a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_IntraDCVLC_s.s +++ /dev/null @@ -1,224 +0,0 @@ -;/** -; * -; * File Name: omxVCM4P2_DecodeVLCZigzag_IntraDCVLC_s.s -; * OpenMAX DL: v1.0.2 -; * Revision: 12290 -; * Date: Wednesday, April 9, 2008 -; * -; * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved. -; * -; * -; * -; * Description: -; * Contains modules for zigzag scanning and VLC decoding -; * for inter block. -; * -; * -; * -; * Function: omxVCM4P2_DecodeVLCZigzag_Inter -; * -; * Description: -; * Performs VLC decoding and inverse zigzag scan for one intra coded block. -; * -; * Remarks: -; * -; * Parameters: -; * [in] ppBitStream pointer to the pointer to the current byte in -; * the bitstream buffer -; * [in] pBitOffset pointer to the bit position in the byte pointed -; * to by *ppBitStream. *pBitOffset is valid within [0-7]. -; * [in] shortVideoHeader binary flag indicating presence of short_video_header; -; * escape modes 0-3 are used if shortVideoHeader==0, -; * and escape mode 4 is used when shortVideoHeader==1. -; * [out] ppBitStream *ppBitStream is updated after the block is -; * decoded, so that it points to the current byte -; * in the bit stream buffer -; * [out] pBitOffset *pBitOffset is updated so that it points to the -; * current bit position in the byte pointed by -; * *ppBitStream -; * [out] pDst pointer to the coefficient buffer of current -; * block. Must be 16-byte aligned -; * -; * Return Value: -; * OMX_Sts_BadArgErr - bad arguments -; * -At least one of the following pointers is NULL: ppBitStream, *ppBitStream, pBitOffset, pDst, or -; * -pDst is not 16-byte aligned, or -; * -*pBitOffset exceeds [0,7]. -; * OMX_Sts_Err - status error -; * -At least one mark bit is equal to zero -; * -Encountered an illegal stream code that cannot be found in the VLC table -; * -Encountered and illegal code in the VLC FLC table -; * -The number of coefficients is greater than 64 -; * -; */ - - - INCLUDE omxtypes_s.h - INCLUDE armCOMM_s.h - INCLUDE armCOMM_BitDec_s.h - - - M_VARIANTS CortexA8 - - - - - - IF CortexA8 - - - ;// Import various tables needed for the function - - - IMPORT armVCM4P2_IntraVlcL0L1 ;// Contains optimized and packed VLC Tables for both Last =1 and last=0 - ;// Packed in Run:Level:Last format - IMPORT armVCM4P2_IntraL0L1LMAX ;// Contains LMAX table entries with both Last=0 and Last=1 - IMPORT armVCM4P2_IntraL0L1RMAX ;// Contains RMAX table entries with both Last=0 and Last=1 - IMPORT armVCM4P2_aClassicalZigzagScan ;// contains CLassical, Horizontal, Vertical Zigzag table entries with double the original values - IMPORT armVCM4P2_aIntraDCLumaChromaIndex ;// Contains Optimized DCLuma and DCChroma Index table Entries - - - IMPORT armVCM4P2_DecodeVLCZigzag_AC_unsafe - -;//Input Arguments - -ppBitStream RN 0 -pBitOffset RN 1 -pDst RN 2 -PredDir RN 3 -shortVideoHeader RN 3 -videoComp RN 5 -;//Local Variables - -Return RN 0 - -pDCLumaChromaIndex RN 4 -pDCChromaIndex RN 7 -pVlcTableL0L1 RN 4 -pLMAXTableL0L1 RN 4 -pRMAXTableL0L1 RN 4 -pZigzagTable RN 4 -Count RN 6 -DCValueSize RN 6 -powOfSize RN 7 -temp1 RN 5 - - -;// Scratch Registers - -RBitStream RN 8 -RBitBuffer RN 9 -RBitCount RN 10 - -T1 RN 11 -T2 RN 12 -DCVal RN 14 - - - ;// Allocate stack memory to store optimized VLC,Zigzag, RMAX, LMAX Table Addresses - - M_ALLOC4 ppVlcTableL0L1,4 - M_ALLOC4 ppLMAXTableL0L1,4 - M_ALLOC4 ppRMAXTableL0L1,4 - M_ALLOC4 ppZigzagTable,4 - M_ALLOC4 pDCCoeff,4 - - - - M_START omxVCM4P2_DecodeVLCZigzag_IntraDCVLC,r12 - - M_ARG shortVideoHeaderonStack,4 ;// Pointer to argument on stack - M_ARG videoComponstack,4 ;// Pointer to argument on stack - - - ;// Decode DC Coefficient - - - LDR pDCLumaChromaIndex, =armVCM4P2_aIntraDCLumaChromaIndex ;// Load Optimized VLC Table for Luminance and Chrominance - - ;// Initializing the Bitstream Macro - - M_BD_INIT0 ppBitStream, pBitOffset, RBitStream, RBitBuffer, RBitCount - M_LDR videoComp,videoComponstack - M_BD_INIT1 T1, T2, T2 - ADD pDCLumaChromaIndex,pDCLumaChromaIndex,videoComp, LSL #6 - M_BD_INIT2 T1, T2, T2 - - - M_BD_VLD DCValueSize,T1,T2,pDCLumaChromaIndex,4,2 ;// VLC Decode using optimized Luminance and Chrominance VLC Table - - - - -DecodeDC - - CMP DCValueSize,#12 - BGT ExitError - - CMP DCValueSize,#0 - MOVEQ DCVal,#0 ;// If DCValueSize is zero then DC coeff =0 - BEQ ACDecode ;// Branch to perform AC Coeff Decoding - - M_BD_VREAD16 DCVal,DCValueSize,T1,T2 ;// Get DC Value From Bit stream - - - MOV powOfSize,#1 - LSL powOfSize,DCValueSize ;// powOfSize=pow(2,DCValueSize) - CMP DCVal,powOfSize,LSR #1 ;// Compare DCVal with powOfSize/2 - ADDLT DCVal,DCVal,#1 - SUBLT DCVal,DCVal,powOfSize ;// If Lessthan powOfSize/2 DCVal=DCVal-powOfSize+1 - ;// Else DCVal= fetchbits from bit stream - -CheckDCValueSize - - CMP DCValueSize,#8 ;// If DCValueSize greater than 8 check marker bit - - BLE ACDecode - - M_BD_READ8 temp1,1,T1 - TEQ temp1,#0 ;// If Marker bit is zero Exit with an Error Message - BEQ ExitError - - - - ;// Decode AC Coefficient - -ACDecode - - M_STR DCVal,pDCCoeff ;// Store Decoded DC Coeff on Stack - M_BD_FINI ppBitStream,pBitOffset ;// Terminating the Bit stream Macro - - LDR pZigzagTable, =armVCM4P2_aClassicalZigzagScan ;// Load Zigzag talbe address - ADD pZigzagTable, pZigzagTable, PredDir, LSL #6 ;// Modify the Zigzag table adress based on PredDir - - M_STR pZigzagTable,ppZigzagTable ;// Store zigzag table on stack - LDR pVlcTableL0L1, =armVCM4P2_IntraVlcL0L1 ;// Load Optimized VLC Table With both Last=0 and Last=1 Entries - M_STR pVlcTableL0L1,ppVlcTableL0L1 ;// Store Optimized VLC Table on stack - LDR pLMAXTableL0L1, =armVCM4P2_IntraL0L1LMAX ;// Load LMAX Table - M_STR pLMAXTableL0L1,ppLMAXTableL0L1 ;// Store LMAX table on stack - LDR pRMAXTableL0L1, =armVCM4P2_IntraL0L1RMAX ;// Load RMAX Table - MOV Count,#1 ;// Set Start =1 - - M_STR pRMAXTableL0L1,ppRMAXTableL0L1 ;// Store RMAX Table on Stack - - - M_LDR shortVideoHeader,shortVideoHeaderonStack ;// Load the Input Argument From Stack - - BL armVCM4P2_DecodeVLCZigzag_AC_unsafe ;// Call the Unsafe Function - - M_LDR DCVal,pDCCoeff ;// Get the Decoded DC Value From Stack - STRH DCVal,[pDst] ;// Store the DC Value - B ExitOK - - - -ExitError - - M_BD_FINI ppBitStream,pBitOffset ;// Terminating the Bit Stream Macro in case of an Error - MOV Return,#OMX_Sts_Err ;// Exit with an Error Message -ExitOK - - M_END - ENDIF - - END |