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authormarkster <markster@f38db490-d61c-443f-a65b-d21fe96a405b>2003-11-04 02:40:09 +0000
committermarkster <markster@f38db490-d61c-443f-a65b-d21fe96a405b>2003-11-04 02:40:09 +0000
commitf8c39a08f6ff651221ff896f8a174abf635f3a0a (patch)
treeac950750c9c1b65bb563df9c6506858c7f8f30c1 /codecs/mp3/src/iupini.c
parentad46ab972ccf439d1dd3a533335b54089c53e431 (diff)
Remove really broke MP3 stuff in favor of G.726 in the near future
git-svn-id: http://svn.digium.com/svn/asterisk/trunk@1689 f38db490-d61c-443f-a65b-d21fe96a405b
Diffstat (limited to 'codecs/mp3/src/iupini.c')
-rwxr-xr-xcodecs/mp3/src/iupini.c390
1 files changed, 0 insertions, 390 deletions
diff --git a/codecs/mp3/src/iupini.c b/codecs/mp3/src/iupini.c
deleted file mode 100755
index 616fd63d2..000000000
--- a/codecs/mp3/src/iupini.c
+++ /dev/null
@@ -1,390 +0,0 @@
-/*____________________________________________________________________________
-
- FreeAmp - The Free MP3 Player
-
- MP3 Decoder originally Copyright (C) 1995-1997 Xing Technology
- Corp. http://www.xingtech.com
-
- Portions Copyright (C) 1998-1999 EMusic.com
-
- 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 program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- $Id$
-____________________________________________________________________________*/
-
-/*=========================================================
- initialization for iup.c - include to iup.c
- mpeg audio decoder portable "c" integer
-
-
-mods 11/15/95 for Layer I
-
-mods 1/8/97 warnings
-
-=========================================================*/
-#include <limits.h>
-#include <string.h>
-
-/* Read only */
-static long steps[18] =
-{
- 0, 3, 5, 7, 9, 15, 31, 63, 127,
- 255, 511, 1023, 2047, 4095, 8191, 16383, 32767, 65535};
-
-/* Read only */
-static int stepbits[18] =
-{
- 0, 2, 3, 3, 4, 4, 5, 6, 7,
- 8, 9, 10, 11, 12, 13, 14, 15, 16};
-
-/* ABCD_INDEX = lookqt[mode][sr_index][br_index] */
-/* -1 = invalid */
-/* Read only */
-static signed char lookqt[4][3][16] =
-{
- {{1, -1, -1, -1, 2, -1, 2, 0, 0, 0, 1, 1, 1, 1, 1, -1}, /* 44ks stereo */
- {0, -1, -1, -1, 2, -1, 2, 0, 0, 0, 0, 0, 0, 0, 0, -1}, /* 48ks */
- {1, -1, -1, -1, 3, -1, 3, 0, 0, 0, 1, 1, 1, 1, 1, -1}}, /* 32ks */
- {{1, -1, -1, -1, 2, -1, 2, 0, 0, 0, 1, 1, 1, 1, 1, -1}, /* 44ks joint stereo */
- {0, -1, -1, -1, 2, -1, 2, 0, 0, 0, 0, 0, 0, 0, 0, -1}, /* 48ks */
- {1, -1, -1, -1, 3, -1, 3, 0, 0, 0, 1, 1, 1, 1, 1, -1}}, /* 32ks */
- {{1, -1, -1, -1, 2, -1, 2, 0, 0, 0, 1, 1, 1, 1, 1, -1}, /* 44ks dual chan */
- {0, -1, -1, -1, 2, -1, 2, 0, 0, 0, 0, 0, 0, 0, 0, -1}, /* 48ks */
- {1, -1, -1, -1, 3, -1, 3, 0, 0, 0, 1, 1, 1, 1, 1, -1}}, /* 32ks */
- {{1, 2, 2, 0, 0, 0, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1}, /* 44ks single chan */
- {0, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1}, /* 48ks */
- {1, 3, 3, 0, 0, 0, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1}}, /* 32ks */
-};
-
-/* Read only */
-static long sr_table[8] =
-{22050L, 24000L, 16000L, 1L,
- 44100L, 48000L, 32000L, 1L};
-
-/* bit allocation table look up */
-/* table per mpeg spec tables 3b2a/b/c/d /e is mpeg2 */
-/* look_bat[abcd_index][4][16] */
-/* Read only */
-static unsigned char look_bat[5][4][16] =
-{
-/* LOOK_BATA */
- {{0, 1, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17},
- {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17},
- {0, 1, 2, 3, 4, 5, 6, 17, 0, 0, 0, 0, 0, 0, 0, 0},
- {0, 1, 2, 17, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
-/* LOOK_BATB */
- {{0, 1, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17},
- {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17},
- {0, 1, 2, 3, 4, 5, 6, 17, 0, 0, 0, 0, 0, 0, 0, 0},
- {0, 1, 2, 17, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
-/* LOOK_BATC */
- {{0, 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16},
- {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
- {0, 1, 2, 4, 5, 6, 7, 8, 0, 0, 0, 0, 0, 0, 0, 0},
- {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
-/* LOOK_BATD */
- {{0, 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16},
- {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
- {0, 1, 2, 4, 5, 6, 7, 8, 0, 0, 0, 0, 0, 0, 0, 0},
- {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
-/* LOOK_BATE */
- {{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
- {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
- {0, 1, 2, 4, 5, 6, 7, 8, 0, 0, 0, 0, 0, 0, 0, 0},
- {0, 1, 2, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
-};
-
-/* look_nbat[abcd_index]][4] */
-/* Read only */
-static unsigned char look_nbat[5][4] =
-{
- {3, 8, 12, 4},
- {3, 8, 12, 7},
- {2, 0, 6, 0},
- {2, 0, 10, 0},
- {4, 0, 7, 19},
-};
-
-
-void i_sbt_mono(SAMPLEINT * sample, short *pcm, int n);
-void i_sbt_dual(SAMPLEINT * sample, short *pcm, int n);
-void i_sbt_dual_mono(SAMPLEINT * sample, short *pcm, int n);
-void i_sbt_dual_left(SAMPLEINT * sample, short *pcm, int n);
-void i_sbt_dual_right(SAMPLEINT * sample, short *pcm, int n);
-void i_sbt16_mono(SAMPLEINT * sample, short *pcm, int n);
-void i_sbt16_dual(SAMPLEINT * sample, short *pcm, int n);
-void i_sbt16_dual_mono(SAMPLEINT * sample, short *pcm, int n);
-void i_sbt16_dual_left(SAMPLEINT * sample, short *pcm, int n);
-void i_sbt16_dual_right(SAMPLEINT * sample, short *pcm, int n);
-void i_sbt8_mono(SAMPLEINT * sample, short *pcm, int n);
-void i_sbt8_dual(SAMPLEINT * sample, short *pcm, int n);
-void i_sbt8_dual_mono(SAMPLEINT * sample, short *pcm, int n);
-void i_sbt8_dual_left(SAMPLEINT * sample, short *pcm, int n);
-void i_sbt8_dual_right(SAMPLEINT * sample, short *pcm, int n);
-
-/*--- 8 bit output ---*/
-void i_sbtB_mono(SAMPLEINT * sample, unsigned char *pcm, int n);
-void i_sbtB_dual(SAMPLEINT * sample, unsigned char *pcm, int n);
-void i_sbtB_dual_mono(SAMPLEINT * sample, unsigned char *pcm, int n);
-void i_sbtB_dual_left(SAMPLEINT * sample, unsigned char *pcm, int n);
-void i_sbtB_dual_right(SAMPLEINT * sample, unsigned char *pcm, int n);
-void i_sbtB16_mono(SAMPLEINT * sample, unsigned char *pcm, int n);
-void i_sbtB16_dual(SAMPLEINT * sample, unsigned char *pcm, int n);
-void i_sbtB16_dual_mono(SAMPLEINT * sample, unsigned char *pcm, int n);
-void i_sbtB16_dual_left(SAMPLEINT * sample, unsigned char *pcm, int n);
-void i_sbtB16_dual_right(SAMPLEINT * sample, unsigned char *pcm, int n);
-void i_sbtB8_mono(SAMPLEINT * sample, unsigned char *pcm, int n);
-void i_sbtB8_dual(SAMPLEINT * sample, unsigned char *pcm, int n);
-void i_sbtB8_dual_mono(SAMPLEINT * sample, unsigned char *pcm, int n);
-void i_sbtB8_dual_left(SAMPLEINT * sample, unsigned char *pcm, int n);
-void i_sbtB8_dual_right(SAMPLEINT * sample, unsigned char *pcm, int n);
-
-
-/* Read Only */
-static SBT_FUNCTION sbt_table[2][3][5] =
-{
- {{i_sbt_mono, i_sbt_dual, i_sbt_dual_mono, i_sbt_dual_left, i_sbt_dual_right},
- {i_sbt16_mono, i_sbt16_dual, i_sbt16_dual_mono, i_sbt16_dual_left, i_sbt16_dual_right},
- {i_sbt8_mono, i_sbt8_dual, i_sbt8_dual_mono, i_sbt8_dual_left, i_sbt8_dual_right}},
-
- {{(SBT_FUNCTION) i_sbtB_mono,
- (SBT_FUNCTION) i_sbtB_dual,
- (SBT_FUNCTION) i_sbtB_dual_mono,
- (SBT_FUNCTION) i_sbtB_dual_left,
- (SBT_FUNCTION) i_sbtB_dual_right},
- {(SBT_FUNCTION) i_sbtB16_mono,
- (SBT_FUNCTION) i_sbtB16_dual,
- (SBT_FUNCTION) i_sbtB16_dual_mono,
- (SBT_FUNCTION) i_sbtB16_dual_left,
- (SBT_FUNCTION) i_sbtB16_dual_right},
- {(SBT_FUNCTION) i_sbtB8_mono,
- (SBT_FUNCTION) i_sbtB8_dual,
- (SBT_FUNCTION) i_sbtB8_dual_mono,
- (SBT_FUNCTION) i_sbtB8_dual_left,
- (SBT_FUNCTION) i_sbtB8_dual_right}},
-};
-/* Read Only */
-static int out_chans[5] =
-{1, 2, 1, 1, 1};
-
-/*---------------------------------------------------------*/
-
-#ifdef _MSC_VER
-#pragma warning(disable: 4056)
-#endif
-
-void i_mpeg_init(MPEGI *m)
-{
- memset(&m->iup, 0, sizeof(m->iup));
- m->iup.nsb_limit = 6;
- m->iup.nbat[0] = 3;
- m->iup.nbat[1] = 8;
- m->iup.nbat[3] = 12;
- m->iup.nbat[4] = 7;
- m->iup.nsbt = 36;
- m->iup.sbt = i_sbt_mono;
- m->iup.unpack_routine = unpack;
- m->iup.first_pass = 1;
- m->iup.first_pass_L1 = 1;
- m->iup.nbatL1 = 32;
- m->iup.cs_factorL1 = m->iup.cs_factor[0];
-}
-
-static void table_init(MPEGI *m)
-{
- int i, j;
- int code;
- int bits;
- long tmp, sfmax;
-
-/*-- c_values (dequant) --*/
- for (i = 1; i < 18; i++)
- m->iup.look_c_value[i] = (int) (32768.0 * 2.0 / steps[i]);
- for (i = 1; i < 18; i++)
- m->iup.look_c_shift[i] = 16 - stepbits[i];
-
-/*-- scale factor table, scale by 32768 for 16 pcm output --*/
- bits = min(8 * sizeof(SAMPLEINT), 8 * sizeof(m->iup.sf_table[0]));
- tmp = 1L << (bits - 2);
- sfmax = tmp + (tmp - 1);
- for (i = 0; i < 64; i++)
- {
- tmp = (long) (32768.0 * 2.0 * pow(2.0, -i / 3.0));
- if (tmp > sfmax)
- tmp = sfmax;
- m->iup.sf_table[i] = tmp;
- }
-/*-- grouped 3 level lookup table 5 bit token --*/
- for (i = 0; i < 32; i++)
- {
- code = i;
- for (j = 0; j < 3; j++)
- {
- m->iup.group3_table[i][j] = (char) ((code % 3) - 1);
- code /= 3;
- }
- }
-/*-- grouped 5 level lookup table 7 bit token --*/
- for (i = 0; i < 128; i++)
- {
- code = i;
- for (j = 0; j < 3; j++)
- {
- m->iup.group5_table[i][j] = (char) ((code % 5) - 2);
- code /= 5;
- }
- }
-/*-- grouped 9 level lookup table 10 bit token --*/
- for (i = 0; i < 1024; i++)
- {
- code = i;
- for (j = 0; j < 3; j++)
- {
- m->iup.group9_table[i][j] = (short) ((code % 9) - 4);
- code /= 9;
- }
- }
-
-
-}
-
-#ifdef _MSC_VER
-#pragma warning(default: 4056)
-#endif
-
-/*---------------------------------------------------------*/
-int i_audio_decode_initL1(MPEGI *m, MPEG_HEAD * h, int framebytes_arg,
- int reduction_code, int transform_code, int convert_code,
- int freq_limit);
-void i_sbt_init(void);
-
-/*---------------------------------------------------------*/
-/* mpeg_head defined in mhead.h frame bytes is without pad */
-int i_audio_decode_init(MPEGI *m, MPEG_HEAD * h, int framebytes_arg,
- int reduction_code, int transform_code, int convert_code,
- int freq_limit)
-{
- int i, j, k;
- int abcd_index;
- long samprate;
- int limit;
- int bit_code;
-
- if (m->iup.first_pass)
- {
- table_init(m);
- m->iup.first_pass = 0;
- }
-
-/* check if code handles */
- if (h->option == 3) /* layer I */
- return i_audio_decode_initL1(m, h, framebytes_arg,
- reduction_code, transform_code, convert_code, freq_limit);
- if (h->option != 2)
- return 0; /* layer II only */
-
-
- m->iup.unpack_routine = unpack;
-
- transform_code = transform_code; /* not used, asm compatability */
- bit_code = 0;
- if (convert_code & 8)
- bit_code = 1;
- convert_code = convert_code & 3; /* higher bits used by dec8 freq cvt */
- if (reduction_code < 0)
- reduction_code = 0;
- if (reduction_code > 2)
- reduction_code = 2;
- if (freq_limit < 1000)
- freq_limit = 1000;
-
-
- m->iup.framebytes = framebytes_arg;
-
-/* compute abcd index for bit allo table selection */
- if (h->id) /* mpeg 1 */
- abcd_index = lookqt[h->mode][h->sr_index][h->br_index];
- else
- abcd_index = 4; /* mpeg 2 */
- for (i = 0; i < 4; i++)
- for (j = 0; j < 16; j++)
- m->iup.bat[i][j] = look_bat[abcd_index][i][j];
- for (i = 0; i < 4; i++)
- m->iup.nbat[i] = look_nbat[abcd_index][i];
- m->iup.max_sb = m->iup.nbat[0] + m->iup.nbat[1] + m->iup.nbat[2] + m->iup.nbat[3];
-/*----- compute nsb_limit --------*/
- samprate = sr_table[4 * h->id + h->sr_index];
- m->iup.nsb_limit = (freq_limit * 64L + samprate / 2) / samprate;
-/*- caller limit -*/
-/*---- limit = 0.94*(32>>reduction_code); ----*/
- limit = (32 >> reduction_code);
- if (limit > 8)
- limit--;
- if (m->iup.nsb_limit > limit)
- m->iup.nsb_limit = limit;
- if (m->iup.nsb_limit > m->iup.max_sb)
- m->iup.nsb_limit = m->iup.max_sb;
-
- m->iup.outvalues = 1152 >> reduction_code;
- if (h->mode != 3)
- { /* adjust for 2 channel modes */
- for (i = 0; i < 4; i++)
- m->iup.nbat[i] *= 2;
- m->iup.max_sb *= 2;
- m->iup.nsb_limit *= 2;
- }
-
-/* set sbt function */
- m->iup.nsbt = 36;
- k = 1 + convert_code;
- if (h->mode == 3)
- {
- k = 0;
- }
- m->iup.sbt = sbt_table[bit_code][reduction_code][k];
- m->iup.outvalues *= out_chans[k];
- if (bit_code != 0)
- m->iup.outbytes = m->iup.outvalues;
- else
- m->iup.outbytes = sizeof(short) * m->iup.outvalues;
-
- m->iup.decinfo.channels = out_chans[k];
- m->iup.decinfo.outvalues = m->iup.outvalues;
- m->iup.decinfo.samprate = samprate >> reduction_code;
- if (bit_code != 0)
- m->iup.decinfo.bits = 8;
- else
- m->iup.decinfo.bits = sizeof(short) * 8;
-
- m->iup.decinfo.framebytes = m->iup.framebytes;
- m->iup.decinfo.type = 0;
-
-
-/* clear sample buffer, unused sub bands must be 0 */
- for (i = 0; i < 2304; i++)
- m->iup.sample[i] = 0;
-
-
-/* init sub-band transform */
- i_sbt_init();
-
- return 1;
-}
-/*---------------------------------------------------------*/
-void i_audio_decode_info(MPEGI *m, DEC_INFO * info)
-{
- *info = m->iup.decinfo; /* info return, call after init */
-}
-/*---------------------------------------------------------*/