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authorSean Bartell <wingedtachikoma@gmail.com>2011-06-25 21:32:25 -0400
committerNils Wallménius <nils@rockbox.org>2012-04-25 22:13:20 +0200
commitf40bfc9267b13b54e6379dfe7539447662879d24 (patch)
tree9b20069d5e62809ff434061ad730096836f916f2 /apps/codecs/libwma/wmadec.h
parenta0009907de7a0107d49040d8a180f140e2eff299 (diff)
downloadrockbox-f40bfc9267b13b54e6379dfe7539447662879d24.tar.gz
rockbox-f40bfc9267b13b54e6379dfe7539447662879d24.zip
Add codecs to librbcodec.
Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97 Reviewed-on: http://gerrit.rockbox.org/137 Reviewed-by: Nils Wallménius <nils@rockbox.org> Tested-by: Nils Wallménius <nils@rockbox.org>
Diffstat (limited to 'apps/codecs/libwma/wmadec.h')
-rw-r--r--apps/codecs/libwma/wmadec.h181
1 files changed, 0 insertions, 181 deletions
diff --git a/apps/codecs/libwma/wmadec.h b/apps/codecs/libwma/wmadec.h
deleted file mode 100644
index 76429dede1..0000000000
--- a/apps/codecs/libwma/wmadec.h
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * WMA compatible decoder
- * Copyright (c) 2002 The FFmpeg Project.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef _WMADEC_H
-#define _WMADEC_H
-
-#include <codecs/libasf/asf.h>
-#include "ffmpeg_get_bits.h"
-#include "types.h"
-
-//#define TRACE
-/* size of blocks */
-#define BLOCK_MIN_BITS 7
-#define BLOCK_MAX_BITS 11
-#define BLOCK_MAX_SIZE (1 << BLOCK_MAX_BITS)
-
-#define BLOCK_NB_SIZES (BLOCK_MAX_BITS - BLOCK_MIN_BITS + 1)
-
-/* XXX: find exact max size */
-#define HIGH_BAND_MAX_SIZE 16
-
-#define NB_LSP_COEFS 10
-
-/* XXX: is it a suitable value ? */
-#define MAX_CODED_SUPERFRAME_SIZE 16384
-
-#define M_PI 3.14159265358979323846
-
-#define M_PI_F 0x3243f // in fixed 32 format
-#define TWO_M_PI_F 0x6487f //in fixed 32
-
-#define MAX_CHANNELS 2
-
-#define NOISE_TAB_SIZE 8192
-
-#define LSP_POW_BITS 7
-
-
-#if (CONFIG_CPU == PP5022) || (CONFIG_CPU == PP5024) || (CONFIG_CPU == MCF5250)
-/* PP5022/24 and MCF5250 have 128KB of IRAM. 80KB are allocated for codecs */
-#define IBSS_ATTR_WMA_LARGE_IRAM IBSS_ATTR
-#define IBSS_ATTR_WMA_XL_IRAM
-#define ICONST_ATTR_WMA_XL_IRAM
-
-#elif defined(CPU_S5L870X)
-/* S5L870x has even more IRAM. Use it. */
-#define IBSS_ATTR_WMA_LARGE_IRAM IBSS_ATTR
-#define IBSS_ATTR_WMA_XL_IRAM IBSS_ATTR
-#define ICONST_ATTR_WMA_XL_IRAM ICONST_ATTR
-
-#else
-/* other PP's and MCF5249 have 96KB of IRAM */
-#define IBSS_ATTR_WMA_LARGE_IRAM
-#define IBSS_ATTR_WMA_XL_IRAM
-#define ICONST_ATTR_WMA_XL_IRAM
-
-#endif
-
-
-#define VLCBITS 7 /*7 is the lowest without glitching*/
-#define VLCMAX ((22+VLCBITS-1)/VLCBITS)
-
-#define EXPVLCBITS 7
-#define EXPMAX ((19+EXPVLCBITS-1)/EXPVLCBITS)
-
-#define HGAINVLCBITS 9
-#define HGAINMAX ((13+HGAINVLCBITS-1)/HGAINVLCBITS)
-
-
-typedef struct CoefVLCTable
-{
- int n; /* total number of codes */
- const uint32_t *huffcodes; /* VLC bit values */
- const uint8_t *huffbits; /* VLC bit size */
- const uint16_t *levels; /* table to build run/level tables */
-}
-CoefVLCTable;
-
-typedef struct WMADecodeContext
-{
- GetBitContext gb;
-
- int nb_block_sizes; /* number of block sizes */
-
- int sample_rate;
- int nb_channels;
- int bit_rate;
- int version; /* 1 = 0x160 (WMAV1), 2 = 0x161 (WMAV2) */
- int block_align;
- int use_bit_reservoir;
- int use_variable_block_len;
- int use_exp_vlc; /* exponent coding: 0 = lsp, 1 = vlc + delta */
- int use_noise_coding; /* true if perceptual noise is added */
- int byte_offset_bits;
- VLC exp_vlc;
- int exponent_sizes[BLOCK_NB_SIZES];
- uint16_t exponent_bands[BLOCK_NB_SIZES][25];
- int high_band_start[BLOCK_NB_SIZES]; /* index of first coef in high band */
- int coefs_start; /* first coded coef */
- int coefs_end[BLOCK_NB_SIZES]; /* max number of coded coefficients */
- int exponent_high_sizes[BLOCK_NB_SIZES];
- int exponent_high_bands[BLOCK_NB_SIZES][HIGH_BAND_MAX_SIZE];
- VLC hgain_vlc;
-
- /* coded values in high bands */
- int high_band_coded[MAX_CHANNELS][HIGH_BAND_MAX_SIZE];
- int high_band_values[MAX_CHANNELS][HIGH_BAND_MAX_SIZE];
-
- /* there are two possible tables for spectral coefficients */
- VLC coef_vlc[2];
- uint16_t *run_table[2];
- uint16_t *level_table[2];
- /* frame info */
- int frame_len; /* frame length in samples */
- int frame_len_bits; /* frame_len = 1 << frame_len_bits */
-
- /* block info */
- int reset_block_lengths;
- int block_len_bits; /* log2 of current block length */
- int next_block_len_bits; /* log2 of next block length */
- int prev_block_len_bits; /* log2 of prev block length */
- int block_len; /* block length in samples */
- int block_num; /* block number in current frame */
- int block_pos; /* current position in frame */
- uint8_t ms_stereo; /* true if mid/side stereo mode */
- uint8_t channel_coded[MAX_CHANNELS]; /* true if channel is coded */
- int exponents_bsize[MAX_CHANNELS]; // log2 ratio frame/exp. length
- fixed32 exponents[MAX_CHANNELS][BLOCK_MAX_SIZE] MEM_ALIGN_ATTR;
- fixed32 max_exponent[MAX_CHANNELS];
- int16_t coefs1[MAX_CHANNELS][BLOCK_MAX_SIZE];
- fixed32 (*coefs)[MAX_CHANNELS][BLOCK_MAX_SIZE];
- fixed32 *windows[BLOCK_NB_SIZES];
- /* output buffer for one frame and the last for IMDCT windowing */
- fixed32 (*frame_out)[MAX_CHANNELS][BLOCK_MAX_SIZE*2];
-
- /* last frame info */
- uint8_t last_superframe[MAX_CODED_SUPERFRAME_SIZE + 4] MEM_ALIGN_ATTR; /* padding added */
- int last_bitoffset;
- int last_superframe_len;
- fixed32 *noise_table;
- int noise_index;
- fixed32 noise_mult; /* XXX: suppress that and integrate it in the noise array */
- /* lsp_to_curve tables */
- fixed32 lsp_cos_table[BLOCK_MAX_SIZE] MEM_ALIGN_ATTR;
- void *lsp_pow_m_table1;
- void *lsp_pow_m_table2;
-
- /* State of current superframe decoding */
- int bit_offset;
- int nb_frames;
- int current_frame;
-
-#ifdef TRACE
-
- int frame_count;
-#endif
-}
-WMADecodeContext;
-
-int wma_decode_init(WMADecodeContext* s, asf_waveformatex_t *wfx);
-int wma_decode_superframe_init(WMADecodeContext* s,
- const uint8_t *buf, int buf_size);
-int wma_decode_superframe_frame(WMADecodeContext* s,
- const uint8_t *buf, int buf_size);
-#endif