forked from len0rd/rockbox
f040c4c9ec
This is a preparation to introduce support for the following SoC models: S5L8720 (iPod Nano 4G, iPod Touch 2G), S5L8730 (iPod Nano 5G), S5L8723 (iPod Nano 6G) and S5L8740 (iPod Nano 7G) The whole family consists of SoCs which are similar, running ARMv6 and Thumb2 instructions, but some peripherals are located at a different address. No functional change is to be expected so far. Change-Id: If1f7669c49cf110ccc52c5234cc42ffd6f2b4e80
114 lines
3.6 KiB
C
114 lines
3.6 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2009 Mohamed Tarek
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "ffmpeg_get_bits.h"
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#include "../librm/rm.h"
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#include "codeclib.h"
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#if (CONFIG_CPU == PP5022) || (CONFIG_CPU == PP5024) || \
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(CONFIG_CPU == MCF5250) || defined(CPU_S5L87XX)
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/* PP5022/24, MCF5250 and S5L87xx have larger IRAM */
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#define IBSS_ATTR_LARGE_IRAM IBSS_ATTR
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#define ICODE_ATTR_LARGE_IRAM ICODE_ATTR
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#define ICONST_ATTR_LARGE_IRAM ICONST_ATTR
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#else
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/* other CPUs IRAM is not large enough */
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#define IBSS_ATTR_LARGE_IRAM
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#define ICODE_ATTR_LARGE_IRAM
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#define ICONST_ATTR_LARGE_IRAM
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#endif
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/* These structures are needed to store the parsed gain control data. */
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typedef struct {
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int num_gain_data;
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int levcode[8];
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int loccode[8];
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} gain_info;
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typedef struct {
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gain_info gBlock[4];
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} gain_block;
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typedef struct {
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int pos;
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int numCoefs;
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int32_t coef[8];
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} tonal_component;
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typedef struct {
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int bandsCoded;
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int numComponents;
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tonal_component components[64];
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int32_t *prevFrame;
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int gcBlkSwitch;
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gain_block gainBlock[2];
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int32_t *spectrum;
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int32_t *IMDCT_buf;
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int32_t delayBuf1[46] MEM_ALIGN_ATTR; ///<qmf delay buffers
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int32_t delayBuf2[46] MEM_ALIGN_ATTR;
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int32_t delayBuf3[46] MEM_ALIGN_ATTR;
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} channel_unit;
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typedef struct {
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int32_t outSamples[2048] MEM_ALIGN_ATTR;
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GetBitContext gb;
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//@{
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/** stream data */
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int channels;
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int codingMode;
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int bit_rate;
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int sample_rate;
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int samples_per_channel;
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int samples_per_frame;
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int bits_per_frame;
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int bytes_per_frame;
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int pBs;
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channel_unit* pUnits;
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//@}
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//@{
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/** joint-stereo related variables */
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int matrix_coeff_index_prev[4];
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int matrix_coeff_index_now[4];
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int matrix_coeff_index_next[4];
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int weighting_delay[6];
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//@}
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//@{
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/** data buffers */
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uint8_t decoded_bytes_buffer[1024] MEM_ALIGN_ATTR;
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int32_t tempBuf[1070] MEM_ALIGN_ATTR;
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//@}
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//@{
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/** extradata */
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int atrac3version;
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int delay;
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int scrambled_stream;
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int frame_factor;
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//@}
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} ATRAC3Context;
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int atrac3_decode_init(ATRAC3Context *q, struct mp3entry *id3, uint16_t channels, uint32_t extradata_size);
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int atrac3_decode_frame(unsigned long block_align, ATRAC3Context *q,
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int *data_size, const uint8_t *buf, int buf_size);
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