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author | Sean Bartell <wingedtachikoma@gmail.com> | 2011-06-25 21:32:25 -0400 |
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committer | Nils Wallménius <nils@rockbox.org> | 2012-04-25 22:13:20 +0200 |
commit | f40bfc9267b13b54e6379dfe7539447662879d24 (patch) | |
tree | 9b20069d5e62809ff434061ad730096836f916f2 /apps/codecs/libwma/wmadec.h | |
parent | a0009907de7a0107d49040d8a180f140e2eff299 (diff) | |
download | rockbox-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.h | 181 |
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 |