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[swftools.git] / lib / lame / quantize_pvt.h

diff --git a/lib/lame/quantize_pvt.h b/lib/lame/quantize_pvt.h
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+/*
+ *     quantize_pvt include file
+ *
+ *     Copyright (c) 1999 Takehiro TOMINAGA
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library 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 LAME_QUANTIZE_PVT_H
+#define LAME_QUANTIZE_PVT_H
+
+#include "l3side.h"
+#define IXMAX_VAL 8206  /* ix always <= 8191+15.    see count_bits() */
+
+/* buggy Winamp decoder cannot handle values > 8191 */
+/* #define IXMAX_VAL 8191 */
+
+#define PRECALC_SIZE (IXMAX_VAL+2)
+
+
+extern const int nr_of_sfb_block[6][3][4];
+extern const char pretab[SBMAX_l];
+extern const char slen1_tab[16];
+extern const char slen2_tab[16];
+
+extern const scalefac_struct sfBandIndex[9];
+
+extern FLOAT8 pow43[PRECALC_SIZE];
+extern FLOAT8 adj43[PRECALC_SIZE];
+extern FLOAT8 adj43asm[PRECALC_SIZE];
+
+#define Q_MAX 330
+
+extern FLOAT8 pow20[Q_MAX];
+extern FLOAT8 ipow20[Q_MAX];
+extern FLOAT8 *iipow20_;
+
+typedef struct calc_noise_result_t {
+    int     over_count;      /* number of quantization noise > masking */
+    FLOAT8  over_noise;      /* sum of quantization noise > masking */
+    FLOAT8  tot_noise;       /* sum of all quantization noise */
+    FLOAT8  max_noise;       /* max quantization noise */
+    float   klemm_noise;
+} calc_noise_result;
+
+void    compute_ath (lame_global_flags * gfp, FLOAT8 ATH_l[SBPSY_l],
+                     FLOAT8 ATH_s[SBPSY_l]);
+
+void    ms_convert (FLOAT8 xr[2][576], FLOAT8 xr_org[2][576]);
+
+int     on_pe (lame_global_flags *gfp, FLOAT8 pe[2][2], III_side_info_t * l3_side,
+               int targ_bits[2], int mean_bits, int gr);
+
+void    reduce_side (int targ_bits[2], FLOAT8 ms_ener_ratio, int mean_bits,
+                     int max_bits);
+
+
+int     bin_search_StepSize (lame_internal_flags * const gfc, gr_info * const cod_info,
+                             const int desired_rate, const int start,
+                             const FLOAT8 xrpow[576], int l3enc[576]);
+
+int     inner_loop (lame_internal_flags * const gfc, gr_info * const cod_info, const int max_bits,
+                    const FLOAT8 xrpow[576], int l3enc[576]);
+
+void    iteration_init (lame_global_flags *gfp);
+
+
+int     calc_xmin (lame_global_flags *gfp, const FLOAT8 xr[576],
+                   const III_psy_ratio * const ratio, const gr_info * const cod_info,
+                   III_psy_xmin * const l3_xmin);
+
+int     calc_noise (const lame_internal_flags * const gfc, const FLOAT8 xr[576],
+                    const int ix[576], const gr_info * const cod_info,
+                    const III_psy_xmin * const l3_xmin,
+                    const III_scalefac_t * const scalefac,
+                    III_psy_xmin * distort, calc_noise_result * const res);
+
+void    set_frame_pinfo (lame_global_flags *gfp, FLOAT8 xr[2][2][576],
+                         III_psy_ratio ratio[2][2], int l3_enc[2][2][576],
+                         III_scalefac_t scalefac[2][2]);
+
+
+void    quantize_xrpow (const FLOAT8 *xr, int *ix, FLOAT8 istep);
+
+void    quantize_xrpow_ISO (const FLOAT8 *xr, int *ix, FLOAT8 istep);
+
+
+
+/* takehiro.c */
+
+int     count_bits (lame_internal_flags * const gfc, int * const ix, const FLOAT8 * const xr,
+                    gr_info * const cod_info);
+
+
+void    best_huffman_divide (const lame_internal_flags * const gfc, 
+                             gr_info * const cod_info, int * const ix);
+
+void    best_scalefac_store (const lame_internal_flags * gfc, const int gr, const int ch,
+                             int l3_enc[2][2][576], III_side_info_t * const l3_side,
+                             III_scalefac_t scalefac[2][2]);
+
+int     scale_bitcount (III_scalefac_t * const scalefac, gr_info * const cod_info);
+
+int     scale_bitcount_lsf (const lame_internal_flags *gfp, const III_scalefac_t * const scalefac,
+                            gr_info * const cod_info);
+
+void    huffman_init (lame_internal_flags * const gfc);
+
+#define LARGE_BITS 100000
+
+#endif /* LAME_QUANTIZE_PVT_H */