4 * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
32 #define INFINITYGAIN -96
34 #define TOTALFREQS 1024
35 #define TOTAL_TIMEFORMATS 7
39 #define TIME_HMS_TEXT _("Hours:Minutes:Seconds.xxx")
42 #define TIME_HMSF_TEXT _("Hours:Minutes:Seconds:Frames")
43 #define TIME_SAMPLES 2
44 #define TIME_SAMPLES_TEXT _("Samples")
45 #define TIME_SAMPLES_HEX 3
46 #define TIME_SAMPLES_HEX_TEXT _("Hex Samples")
48 #define TIME_FRAMES_TEXT _("Frames")
50 #define TIME_FEET_FRAMES 5
51 #define TIME_SECONDS__STR "ssss.sss"
52 #define TIME_HMS__STR "h:mm:ss.sss"
53 #define TIME_HMS2__STR "h:mm:ss"
54 #define TIME_HMS3__STR "hh:mm:ss"
55 #define TIME_HMSF__STR "h:mm:ss:ff"
56 #define TIME_SAMPLES__STR "audio samples"
57 #define TIME_SAMPLES_HEX__STR "audio samples (hex)"
58 #define TIME_FRAMES__STR "video frames"
59 #define TIME_FEET_FRAMES__STR "video frames (feet)"
60 #define TIME_FEET_FRAMES_TEXT _("Feet-frames")
65 #define TIME_HMS2_TEXT _("Hours:Minutes:Seconds")
68 #define TIME_HMS3_TEXT _("Hours:Minutes:Seconds")
70 #define TIME_SECONDS 8
71 #define TIME_SECONDS_TEXT _("Seconds")
76 #define TIME_MS2_TEXT _("Minutes:Seconds")
84 DB(float infinitygain = INFINITYGAIN);
87 // return power of db using a table
89 float fromdb_table(float db);
90 // return power from db using log10
92 static float fromdb(float db);
94 // convert db to power using a formula
95 static float todb(float power);
97 inline DB& operator++() { if(db < MAXGAIN) db += 0.1; return *this; };
98 inline DB& operator--() { if(db > INFINITYGAIN) db -= 0.1; return *this; };
99 inline DB& operator=(DB &newdb) { db = newdb.db; return *this; };
100 inline DB& operator=(int newdb) { db = newdb; return *this; };
101 inline int operator==(DB &newdb) { return db == newdb.db; };
102 inline int operator==(int newdb) { return db == newdb; };
108 static float *topower_base;
111 // Third octave frequency table
117 Freq(const Freq& oldfreq);
120 static void init_table();
122 // set freq to index given
123 static int tofreq(int index);
125 // return index of frequency
127 static int fromfreq(int index);
129 // increment frequency by one
133 int operator>(Freq &newfreq);
134 int operator<(Freq &newfreq);
135 Freq& operator=(const Freq &newfreq);
136 int operator=(const int newfreq);
137 int operator!=(Freq &newfreq);
138 int operator==(Freq &newfreq);
139 int operator==(int newfreq);
141 static int *freqtable;
153 static int timeformat_totype(char *tcf);
156 static float toframes(int64_t samples, int sample_rate, float framerate);
158 static int64_t toframes_round(int64_t samples, int sample_rate, float framerate);
159 static double fix_framerate(double value);
160 static double atoframerate(const char *text);
161 static int64_t get_int64(const char*&cp);
162 static double get_double(const char*&cp);
163 static void skip_seperators(const char*&cp);
165 // Punctuate with commas
166 static void punctuate(char *string);
169 // separator strings for BC_TextBox::set_separators
170 // Returns 0 if the format has no separators.
171 static const char* format_to_separators(int time_format);
172 static int text_to_format(const char *string);
173 static const char* print_time_format(int time_format, char *string);
175 static int64_t tosamples(double frames, int sample_rate, float framerate);
176 // give text representation as time
177 static char* totext(char *text, int64_t samples, int time_format,
178 int samplerate, float frame_rate = 0, float frames_per_foot = 0);
179 // give text representation as time
180 static char* totext(char *text, double seconds, int time_format,
181 int sample_rate = 0, float frame_rate = 0, float frames_per_foot = 0);
182 // convert time to samples
183 static int64_t fromtext(const char *text, int samplerate,
184 int time_format, float frame_rate, float frames_per_foot);
185 // Convert text to seconds
186 static double text_to_seconds(const char *text, int samplerate,
187 int time_format, float frame_rate = 0, float frames_per_foot = 0);
188 static char* size_totext(int64_t bytes, char *text);
190 static float xy_to_polar(int x, int y);
191 static void polar_to_xy(float angle, int radius, int &x, int &y);
193 // Numbers < 0 round down if next digit is < 5
194 // Numbers > 0 round up if next digit is > 5
195 static int64_t round(double result);
197 // Flooring type converter rounded to nearest .001
198 static int64_t to_int64(double result);
200 static float quantize10(float value);
201 static float quantize(float value, float precision);
203 static void* int64_to_ptr(uint64_t value);
204 static uint64_t ptr_to_int64(void *ptr);
206 // Comparisons between double seem to work more often when this is called
207 // on the comparison values.
208 static void fix_double(double *x);