wwww

[16.git] / src / lib / dl / ext / lame / quantize_pvt.h

diff --git a/src/lib/dl/ext/lame/quantize_pvt.h b/src/lib/dl/ext/lame/quantize_pvt.h
new file mode 100755 (executable)
index 0000000..b8333e7
--- /dev/null
+++ b/src/lib/dl/ext/lame/quantize_pvt.h
@@ -0,0 +1,128 @@
+/*
+ *     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
+
+#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 int pretab[SBMAX_l];
+extern const int slen1_tab[16];
+extern const int slen2_tab[16];
+
+extern const scalefac_struct sfBandIndex[9];
+
+extern FLOAT pow43[PRECALC_SIZE];
+#ifdef TAKEHIRO_IEEE754_HACK
+extern FLOAT adj43asm[PRECALC_SIZE];
+#else
+extern FLOAT adj43[PRECALC_SIZE];
+#endif
+
+#define Q_MAX (256+1)
+#define Q_MAX2 116      /* minimum possible number of
+                           -cod_info->global_gain
+                           + ((scalefac[] + (cod_info->preflag ? pretab[sfb] : 0))
+                           << (cod_info->scalefac_scale + 1))
+                           + cod_info->subblock_gain[cod_info->window[sfb]] * 8;
+
+                           for long block, 0+((15+3)<<2) = 18*4 = 72
+                           for short block, 0+(15<<2)+7*8 = 15*4+56 = 116
+                         */
+
+extern FLOAT pow20[Q_MAX + Q_MAX2 + 1];
+extern FLOAT ipow20[Q_MAX];
+
+typedef struct calc_noise_result_t {
+    FLOAT   over_noise;      /* sum of quantization noise > masking */
+    FLOAT   tot_noise;       /* sum of all quantization noise */
+    FLOAT   max_noise;       /* max quantization noise */
+    int     over_count;      /* number of quantization noise > masking */
+    int     over_SSD;        /* SSD-like cost of distorted bands */
+    int     bits;
+} calc_noise_result;
+
+
+/**
+* allows re-use of previously
+* computed noise values
+*/
+typedef struct calc_noise_data_t {
+    int     global_gain;
+    int     sfb_count1;
+    int     step[39];
+    FLOAT   noise[39];
+    FLOAT   noise_log[39];
+} calc_noise_data;
+
+
+int     on_pe(lame_internal_flags * gfc, const FLOAT pe[2][2],
+              int targ_bits[2], int mean_bits, int gr, int cbr);
+
+void    reduce_side(int targ_bits[2], FLOAT ms_ener_ratio, int mean_bits, int max_bits);
+
+
+void    iteration_init(lame_internal_flags * gfc);
+
+
+int     calc_xmin(lame_internal_flags const *gfc,
+                  III_psy_ratio const *const ratio, gr_info * const cod_info, FLOAT * l3_xmin);
+
+int     calc_noise(const gr_info * const cod_info,
+                   const FLOAT * l3_xmin,
+                   FLOAT * distort, calc_noise_result * const res, calc_noise_data * prev_noise);
+
+void    set_frame_pinfo(lame_internal_flags * gfc, const III_psy_ratio ratio[2][2]);
+
+
+
+
+/* takehiro.c */
+
+int     count_bits(lame_internal_flags const *const gfc, const FLOAT * const xr,
+                   gr_info * const cod_info, calc_noise_data * prev_noise);
+int     noquant_count_bits(lame_internal_flags const *const gfc,
+                           gr_info * const cod_info, calc_noise_data * prev_noise);
+
+
+void    best_huffman_divide(const lame_internal_flags * const gfc, gr_info * const cod_info);
+
+void    best_scalefac_store(const lame_internal_flags * gfc, const int gr, const int ch,
+                            III_side_info_t * const l3_side);
+
+int     scale_bitcount(const lame_internal_flags * gfc, gr_info * cod_info);
+
+void    huffman_init(lame_internal_flags * const gfc);
+
+void    init_xrpow_core_init(lame_internal_flags * const gfc);
+
+FLOAT   athAdjust(FLOAT a, FLOAT x, FLOAT athFloor, float ATHfixpoint);
+
+#define LARGE_BITS 100000
+
+#endif /* LAME_QUANTIZE_PVT_H */