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Diffstat (limited to 'media/libstagefright/codecs/aacdec/s_tdec_int_chan.h')
| -rw-r--r-- | media/libstagefright/codecs/aacdec/s_tdec_int_chan.h | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/aacdec/s_tdec_int_chan.h b/media/libstagefright/codecs/aacdec/s_tdec_int_chan.h new file mode 100644 index 0000000..f7a3602 --- /dev/null +++ b/media/libstagefright/codecs/aacdec/s_tdec_int_chan.h @@ -0,0 +1,183 @@ +/* ------------------------------------------------------------------ + * 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: s_tDec_Int_Chan.h + +------------------------------------------------------------------------------ + REVISION HISTORY + + Description: Change data types of win + + Description: Remove wnd_shape structure. + + Description: Remove dependency on window_block.h, Fix header too. + + Description: + Modified to utilize memory in the last 1024 elements in fxpCoef. + + Description: + (1) Modified to include the lines... + + #ifdef __cplusplus + extern "C" { + #endif + + #ifdef __cplusplus + } + #endif + + (2) Updated the copyright header. + + Description: + (1) Move temporary FrameInfo structure into the shared region with fxpCoef. + (2) Add more comments detailing the size of the shared structure. + + Description: + (1) Changed time_quant from 2048 Int32 buffer to 1024 Int32 buffer. + + Who: Date: + Description: + +------------------------------------------------------------------------------ + INCLUDE DESCRIPTION + + This include file defines the structure, tDec_Int_Chan + +------------------------------------------------------------------------------ +*/ + +/*---------------------------------------------------------------------------- +; CONTINUE ONLY IF NOT ALREADY DEFINED +----------------------------------------------------------------------------*/ +#ifndef S_TDEC_INT_CHAN_H +#define S_TDEC_INT_CHAN_H + +#ifdef __cplusplus +extern "C" +{ +#endif + + /*---------------------------------------------------------------------------- + ; INCLUDES + ----------------------------------------------------------------------------*/ +#include "pv_audio_type_defs.h" +#include "e_rawbitstreamconst.h" +#include "s_tns_frame_info.h" +#include "s_wnd_shape.h" +#include "s_lt_pred_status.h" +#include "s_sectinfo.h" +#include "s_frameinfo.h" +#include "e_window_shape.h" +#include "e_window_sequence.h" +#include "window_block_fxp.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 + ----------------------------------------------------------------------------*/ + + /* This structure was created with the specific goal in mind of sharing memory + * with the last 1024 data elements in fxpCoef. + * + * The size of this structure must NOT exceed 4 kilobytes + * Also, the size of the fxpCoef array cannot be less than 8 kilobytes + * + * The fxpCoef array is declared as an Int32, so its size should not vary + * from platform to platform. + * + * The shared structure is 3,640 bytes (3.55 KB), on a 32-bit platform, + * which represents the worst case. + */ + typedef struct + { + TNS_frame_info tns; + + FrameInfo frameInfo; + + Int factors[MAXBANDS]; + Int cb_map[MAXBANDS]; + Int group[NSHORT]; + Int qFormat[MAXBANDS]; + + Int max_sfb; + LT_PRED_STATUS lt_status; + + } per_chan_share_w_fxpCoef; + + /* + * This structure contains one per channel. + */ + typedef struct + { +#ifdef AAC_PLUS + Int16 ltp_buffer[LT_BLEN + 2*288]; /* LT_BLEN = 2048 + 2*288 */ +#else + Int16 ltp_buffer[LT_BLEN]; /* LT_BLEN = 2048 */ +#endif + + + Int32 time_quant[LONG_WINDOW]; /* 1024 holds overlap&add */ + + Int32 *fxpCoef; /* Spectrum coeff.*/ + + per_chan_share_w_fxpCoef * pShareWfxpCoef; + + Int32 abs_max_per_window[NUM_SHORT_WINDOWS]; + + WINDOW_SEQUENCE wnd; + + + WINDOW_SHAPE wnd_shape_prev_bk; + WINDOW_SHAPE wnd_shape_this_bk; + + } tDec_Int_Chan; + + /*---------------------------------------------------------------------------- + ; GLOBAL FUNCTION DEFINITIONS + ; Function Prototype declaration + ----------------------------------------------------------------------------*/ + +#ifdef __cplusplus +} +#endif + +#endif /* S_TDEC_INT_CHAN_H */ + |