Include toolame-dab as library

1 files changed, 188 insertions, 0 deletions

diff --git a/libtoolame-dab/common.c b/libtoolame-dab/common.c
new file mode 100644
index 0000000..e1c5407
--- /dev/null
+++ b/libtoolame-dab/common.c
@@ -0,0 +1,188 @@
+
+/***********************************************************************
+*
+*  Global Include Files
+*
+***********************************************************************/
+#include <stdio.h>
+#include <string.h>		/* 1995-07-11 shn */
+#include <ctype.h>
+#include <stdlib.h>
+#include "common.h"
+#include "options.h"
+#include "encode_new.h"
+#include "tables.h"
+
+/***********************************************************************
+*
+*  Global Variable Definitions
+*
+***********************************************************************/
+
+char *mode_names[4] = { "stereo", "j-stereo", "dual-ch", "single-ch" };
+char *version_names[2] = { "MPEG-2 LSF", "MPEG-1" };
+
+/* 1: MPEG-1, 0: MPEG-2 LSF, 1995-07-11 shn */
+double s_freq[2][4] = { {22.05, 24, 16, 0}, {44.1, 48, 32, 0} };
+
+/* 1: MPEG-1, 0: MPEG-2 LSF, 1995-07-11 shn */
+int bitrate[2][15] = {
+  {0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160},
+  {0, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384}
+};
+
+double multiple[64] = {
+  2.00000000000000, 1.58740105196820, 1.25992104989487,
+  1.00000000000000, 0.79370052598410, 0.62996052494744, 0.50000000000000,
+  0.39685026299205, 0.31498026247372, 0.25000000000000, 0.19842513149602,
+  0.15749013123686, 0.12500000000000, 0.09921256574801, 0.07874506561843,
+  0.06250000000000, 0.04960628287401, 0.03937253280921, 0.03125000000000,
+  0.02480314143700, 0.01968626640461, 0.01562500000000, 0.01240157071850,
+  0.00984313320230, 0.00781250000000, 0.00620078535925, 0.00492156660115,
+  0.00390625000000, 0.00310039267963, 0.00246078330058, 0.00195312500000,
+  0.00155019633981, 0.00123039165029, 0.00097656250000, 0.00077509816991,
+  0.00061519582514, 0.00048828125000, 0.00038754908495, 0.00030759791257,
+  0.00024414062500, 0.00019377454248, 0.00015379895629, 0.00012207031250,
+  0.00009688727124, 0.00007689947814, 0.00006103515625, 0.00004844363562,
+  0.00003844973907, 0.00003051757813, 0.00002422181781, 0.00001922486954,
+  0.00001525878906, 0.00001211090890, 0.00000961243477, 0.00000762939453,
+  0.00000605545445, 0.00000480621738, 0.00000381469727, 0.00000302772723,
+  0.00000240310869, 0.00000190734863, 0.00000151386361, 0.00000120155435,
+  1E-20
+};
+
+enum byte_order NativeByteOrder = order_unknown;
+
+/***********************************************************************
+*
+*  Global Function Definitions
+*
+***********************************************************************/
+
+
+
+int js_bound (int m_ext)
+{
+  /* layer 2 only */
+  static int jsb_table[4] = { 4, 8, 12, 16 };
+
+  if (m_ext < 0 || m_ext > 3) {
+    fprintf (stderr, "js_bound bad modext (%d)\n", m_ext);
+    exit (1);
+  }
+  return (jsb_table[m_ext]);
+}
+
+void hdr_to_frps (frame_info * frame)
+/* interpret data in hdr str to fields in frame */
+{
+  frame_header *hdr = frame->header;	/* (or pass in as arg?) */
+
+  frame->actual_mode = hdr->mode;
+  frame->nch = (hdr->mode == MPG_MD_MONO) ? 1 : 2;
+
+  frame->sblimit = pick_table (frame);
+  /* MFC FIX this up */
+  encode_init(frame);
+
+  if (hdr->mode == MPG_MD_JOINT_STEREO)
+    frame->jsbound = js_bound (hdr->mode_ext);
+  else
+    frame->jsbound = frame->sblimit;
+  /* alloc, tab_num set in pick_table */
+}
+
+int BitrateIndex (int bRate,	/* legal rates from 32 to 448 */
+		  int version /* MPEG-1 or MPEG-2 LSF */ )
+/* convert bitrate in kbps to index */
+{
+  int index = 0;
+  int found = 0;
+
+  while (!found && index < 15) {
+    if (bitrate[version][index] == bRate)
+      found = 1;
+    else
+      ++index;
+  }
+  if (found)
+    return (index);
+  else {
+    fprintf (stderr,
+	     "BitrateIndex: %d is not a legal bitrate for version %i\n",
+	     bRate, version);
+    exit (-1);			/* Error! */
+  }
+}
+
+int SmpFrqIndex (long sRate, int *version)
+/* convert samp frq in Hz to index */
+/* legal rates 16000, 22050, 24000, 32000, 44100, 48000 */
+{
+  if (sRate == 44100L) {
+    *version = MPEG_AUDIO_ID;
+    return (0);
+  } else if (sRate == 48000L) {
+    *version = MPEG_AUDIO_ID;
+    return (1);
+  } else if (sRate == 32000L) {
+    *version = MPEG_AUDIO_ID;
+    return (2);
+  } else if (sRate == 24000L) {
+    *version = MPEG_PHASE2_LSF;
+    return (1);
+  } else if (sRate == 22050L) {
+    *version = MPEG_PHASE2_LSF;
+    return (0);
+  } else if (sRate == 16000L) {
+    *version = MPEG_PHASE2_LSF;
+    return (2);
+  } else {
+    fprintf (stderr, "SmpFrqIndex: %ld is not a legal sample rate\n", sRate);
+    return (-1);		/* Error! */
+  }
+}
+
+
+
+
+
+/********************************************************************
+new_ext()
+Puts a new extension name on a file name <filename>.
+Removes the last extension name, if any.
+1992-08-19, 1995-06-12 shn
+***********************************************************************/
+void new_ext (char *filename, char *extname, char *newname)
+{
+  int found, dotpos;
+
+  /* First, strip the extension */
+  dotpos = strlen (filename);
+  found = 0;
+  do {
+    switch (filename[dotpos]) {
+    case '.':
+      found = 1;
+      break;
+    case '\\':
+    case '/':
+    case ':':
+      found = -1;
+      break;
+    default:
+      dotpos--;
+      if (dotpos < 0)
+	found = -1;
+      break;
+    }
+  }
+  while (found == 0);
+  if (found == -1)
+    strcpy (newname, filename);
+  if (found == 1) {
+    strncpy (newname, filename, dotpos);
+    newname[dotpos] = '\0';
+  }
+  strcat (newname, extname);
+}