diff options
Diffstat (limited to 'media/libstagefright/codecs/aacdec/get_dse.cpp')
| -rw-r--r-- | media/libstagefright/codecs/aacdec/get_dse.cpp | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/media/libstagefright/codecs/aacdec/get_dse.cpp b/media/libstagefright/codecs/aacdec/get_dse.cpp deleted file mode 100644 index d64087f..0000000 --- a/media/libstagefright/codecs/aacdec/get_dse.cpp +++ /dev/null @@ -1,215 +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. - * ------------------------------------------------------------------- - */ -/* ------------------------------------------------------------------------------- - INPUT AND OUTPUT DEFINITIONS - - Inputs: - pInputStream = pointer to a BITS structure that holds information - regarding the input stream. - - Local Stores/Buffers/Pointers Needed: - None - - Global Stores/Buffers/Pointers Needed: - None - - Outputs: - None - - Pointers and Buffers Modified: - pInputStream->usedBits is rounded up to a number that represents the next - byte boundary. - - Local Stores Modified: - None - - Global Stores Modified: - None - ------------------------------------------------------------------------------- - FUNCTION DESCRIPTION - - Adquire Data Stream element (DSE) from raw bitstream - At this time this function just drops the information. - ------------------------------------------------------------------------------- - REQUIREMENTS - - This function shall not use global or static variables. - ------------------------------------------------------------------------------- - REFERENCES - - (1) MPEG-2 NBC Audio Decoder - "This software module was originally developed by AT&T, Dolby - Laboratories, Fraunhofer Gesellschaft IIS in the course of development - of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and - 3. This software module is an implementation of a part of one or more - MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4 - Audio standard. ISO/IEC gives users of the MPEG-2 NBC/MPEG-4 Audio - standards free license to this software module or modifications thereof - for use in hardware or software products claiming conformance to the - MPEG-2 NBC/MPEG-4 Audio standards. Those intending to use this software - module in hardware or software products are advised that this use may - infringe existing patents. The original developer of this software - module and his/her company, the subsequent editors and their companies, - and ISO/IEC have no liability for use of this software module or - modifications thereof in an implementation. Copyright is not released - for non MPEG-2 NBC/MPEG-4 Audio conforming products.The original - developer retains full right to use the code for his/her own purpose, - assign or donate the code to a third party and to inhibit third party - from using the code for non MPEG-2 NBC/MPEG-4 Audio conforming products. - This copyright notice must be included in all copies or derivative - works." - Copyright(c)1996. - ------------------------------------------------------------------------------- - PSEUDO-CODE - -void byte_align( - BITS *pInputStream) - - MODIFYING(pInputStream->usedBits = pInputStream->usedBits + - (pInputStream->usedBits + 7) % 8) - - RETURN(nothing) - ------------------------------------------------------------------------------- - RESOURCES USED - - STACK USAGE: - - where: - - DATA MEMORY USED: x words - - PROGRAM MEMORY USED: x words - - CLOCK CYCLES: - ------------------------------------------------------------------------------- -*/ - - -/*---------------------------------------------------------------------------- -; INCLUDES -----------------------------------------------------------------------------*/ - -#include "pv_audio_type_defs.h" -#include "get_dse.h" -#include "ibstream.h" -#include "getbits.h" -#include "s_bits.h" - - -/*---------------------------------------------------------------------------- -; MACROS -; Define module specific macros here -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; DEFINES -; Include all pre-processor statements here. Include conditional -; compile variables also. -----------------------------------------------------------------------------*/ - - -/*---------------------------------------------------------------------------- -; LOCAL FUNCTION DEFINITIONS -; Function Prototype declaration -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; LOCAL VARIABLE DEFINITIONS -; Variable declaration - defined here and used outside this module -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; EXTERNAL FUNCTION REFERENCES -; Declare functions defined elsewhere and referenced in this module -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; EXTERNAL VARIABLES REFERENCES -; Declare variables used in this module but defined elsewhere -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; FUNCTION CODE -----------------------------------------------------------------------------*/ - -void get_dse( - Char *DataStreamBytes, - BITS *pInputStream) -{ - Int i; - Int data_byte_align_flag; - UInt count; - Int esc_count; - Char *pDataStreamBytes; - - pDataStreamBytes = DataStreamBytes; - - /* - * Get element instance tag ( 4 bits) - * ( max of 16 per raw data block) - */ - get9_n_lessbits(LEN_TAG, pInputStream); - - /* - * get data_byte_align_flag ( 1 bit0 to see if byte alignment is - * performed within the DSE - */ - data_byte_align_flag = get1bits(pInputStream); - - /* - * get count ( 8 bits) - */ - count = get9_n_lessbits(LEN_D_CNT, pInputStream); - - /* - * if count == 255, its value it is incremented by a - * second 8 bit value, esc_count. This final value represents - * the number of bytes in the DSE - */ - if (count == (1 << LEN_D_CNT) - 1) - { - esc_count = (Int)get9_n_lessbits(LEN_D_ESC, pInputStream); /* 8 bits */ - count += esc_count; - } - - /* - * Align if flag is set - */ - if (data_byte_align_flag) - { - byte_align(pInputStream); - } - - for (i = count; i != 0; i--) - { - *(pDataStreamBytes++) = (Char) get9_n_lessbits( - LEN_BYTE, - pInputStream); - } - - return; - -} /* end get_dse */ - |