From f40bfc9267b13b54e6379dfe7539447662879d24 Mon Sep 17 00:00:00 2001
From: Sean Bartell <wingedtachikoma@gmail.com>
Date: Sat, 25 Jun 2011 21:32:25 -0400
Subject: Add codecs to librbcodec.
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Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius <nils@rockbox.org>
Tested-by: Nils Wallménius <nils@rockbox.org>
---
 lib/rbcodec/codecs/libatrac/atrac3.h | 114 +++++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 lib/rbcodec/codecs/libatrac/atrac3.h

(limited to 'lib/rbcodec/codecs/libatrac/atrac3.h')

diff --git a/lib/rbcodec/codecs/libatrac/atrac3.h b/lib/rbcodec/codecs/libatrac/atrac3.h
new file mode 100644
index 0000000000..64086b6411
--- /dev/null
+++ b/lib/rbcodec/codecs/libatrac/atrac3.h
@@ -0,0 +1,114 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2009 Mohamed Tarek
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "ffmpeg_get_bits.h"
+#include "../librm/rm.h"
+#include "codeclib.h"
+
+#if (CONFIG_CPU == PP5022) || (CONFIG_CPU == PP5024) || \
+    (CONFIG_CPU == MCF5250) || defined(CPU_S5L870X)
+/* PP5022/24, MCF5250 and S5L870x have larger IRAM */
+#define IBSS_ATTR_LARGE_IRAM    IBSS_ATTR
+#define ICODE_ATTR_LARGE_IRAM   ICODE_ATTR
+#define ICONST_ATTR_LARGE_IRAM  ICONST_ATTR
+#else
+/* other CPUs IRAM is not large enough */
+#define IBSS_ATTR_LARGE_IRAM
+#define ICODE_ATTR_LARGE_IRAM
+#define ICONST_ATTR_LARGE_IRAM
+#endif
+
+/* These structures are needed to store the parsed gain control data. */
+typedef struct {
+    int   num_gain_data;
+    int   levcode[8];
+    int   loccode[8];
+} gain_info;
+
+typedef struct {
+    gain_info   gBlock[4];
+} gain_block;
+
+typedef struct {
+    int     pos;
+    int     numCoefs;
+    int32_t coef[8];
+} tonal_component;
+
+typedef struct {
+    int               bandsCoded;
+    int               numComponents;
+    tonal_component   components[64];
+    int32_t           *prevFrame;
+    int               gcBlkSwitch;
+    gain_block        gainBlock[2];
+
+    int32_t           *spectrum;
+    int32_t           *IMDCT_buf;
+
+    int32_t           delayBuf1[46] MEM_ALIGN_ATTR; ///<qmf delay buffers
+    int32_t           delayBuf2[46] MEM_ALIGN_ATTR;
+    int32_t           delayBuf3[46] MEM_ALIGN_ATTR;
+} channel_unit;
+
+typedef struct {
+    int32_t             outSamples[2048] MEM_ALIGN_ATTR;
+    GetBitContext       gb;
+    //@{
+    /** stream data */
+    int                 channels;
+    int                 codingMode;
+    int                 bit_rate;
+    int                 sample_rate;
+    int                 samples_per_channel;
+    int                 samples_per_frame;
+
+    int                 bits_per_frame;
+    int                 bytes_per_frame;
+    int                 pBs;
+    channel_unit*       pUnits;
+    //@}
+    //@{
+    /** joint-stereo related variables */
+    int                 matrix_coeff_index_prev[4];
+    int                 matrix_coeff_index_now[4];
+    int                 matrix_coeff_index_next[4];
+    int                 weighting_delay[6];
+    //@}
+    //@{
+    /** data buffers */    
+    uint8_t             decoded_bytes_buffer[1024] MEM_ALIGN_ATTR;
+    int32_t             tempBuf[1070]              MEM_ALIGN_ATTR;
+    //@}
+    //@{
+    /** extradata */
+    int                 atrac3version;
+    int                 delay;
+    int                 scrambled_stream;
+    int                 frame_factor;
+    //@}
+} ATRAC3Context;
+
+int atrac3_decode_init(ATRAC3Context *q, struct mp3entry *id3);
+
+int atrac3_decode_frame(unsigned long block_align, ATRAC3Context *q,
+                        int *data_size, const uint8_t *buf, int buf_size);
+
-- 
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