diff options
Diffstat (limited to 'libvideoeditor/vss/src/M4VD_Tools.c')
-rwxr-xr-x | libvideoeditor/vss/src/M4VD_Tools.c | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/libvideoeditor/vss/src/M4VD_Tools.c b/libvideoeditor/vss/src/M4VD_Tools.c deleted file mode 100755 index fdb4b41..0000000 --- a/libvideoeditor/vss/src/M4VD_Tools.c +++ /dev/null @@ -1,99 +0,0 @@ -/* - * Copyright (C) 2011 The Android Open Source Project - * - * 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. - */ - -#include "M4OSA_Types.h" -#include "M4OSA_Debug.h" - -#include "M4VD_Tools.h" - -/** - ************************************************************************ - * @file M4VD_Tools.c - * @brief - * @note This file implements helper functions for Bitstream parser - ************************************************************************ - */ - -M4OSA_UInt32 M4VD_Tools_GetBitsFromMemory(M4VS_Bitstream_ctxt* parsingCtxt, - M4OSA_UInt32 nb_bits) -{ - M4OSA_UInt32 code; - M4OSA_UInt32 i; - code = 0; - for (i = 0; i < nb_bits; i++) - { - if (parsingCtxt->stream_index == 8) - { - //M4OSA_memcpy( (M4OSA_MemAddr8)&(parsingCtxt->stream_byte), parsingCtxt->in, - // sizeof(unsigned char)); - parsingCtxt->stream_byte = (unsigned char)(parsingCtxt->in)[0]; - parsingCtxt->in++; - //fread(&stream_byte, sizeof(unsigned char),1,in); - parsingCtxt->stream_index = 0; - } - code = (code << 1); - code |= ((parsingCtxt->stream_byte & 0x80) >> 7); - - parsingCtxt->stream_byte = (parsingCtxt->stream_byte << 1); - parsingCtxt->stream_index++; - } - - return code; -} - -M4OSA_ERR M4VD_Tools_WriteBitsToMemory(M4OSA_UInt32 bitsToWrite, - M4OSA_MemAddr32 dest_bits, - M4OSA_UInt8 offset, M4OSA_UInt8 nb_bits) -{ - M4OSA_UInt8 i,j; - M4OSA_UInt32 temp_dest = 0, mask = 0, temp = 1; - M4OSA_UInt32 input = bitsToWrite; - input = (input << (32 - nb_bits - offset)); - - /* Put destination buffer to 0 */ - for(j=0;j<3;j++) - { - for(i=0;i<8;i++) - { - if((j*8)+i >= offset && (j*8)+i < nb_bits + offset) - { - mask |= (temp << ((7*(j+1))-i+j)); - } - } - } - mask = ~mask; - *dest_bits &= mask; - - /* Parse input bits, and fill output buffer */ - for(j=0;j<3;j++) - { - for(i=0;i<8;i++) - { - if((j*8)+i >= offset && (j*8)+i < nb_bits + offset) - { - temp = ((input & (0x80000000 >> offset)) >> (31-offset)); - //*dest_bits |= (temp << (31 - i)); - *dest_bits |= (temp << ((7*(j+1))-i+j)); - input = (input << 1); - } - } - } - - return M4NO_ERROR; -} - - - |