X-Git-Url: https://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fguicast%2Funits.C;h=cf48af1722b85a9733f56ba89f4dec9d9297ed3b;hb=3836e2ca418201dccf1101947269fb26debb3cb4;hp=9c2f1d27106b7f4be2cee7ec37f70c5bd91edf04;hpb=7fd85fb66168f6b518c5f2d73e04036e87faa0e1;p=goodguy%2Fcinelerra.git

diff --git a/cinelerra-5.1/guicast/units.C b/cinelerra-5.1/guicast/units.C
index 9c2f1d27..cf48af17 100644
--- a/cinelerra-5.1/guicast/units.C
+++ b/cinelerra-5.1/guicast/units.C
@@ -90,14 +90,14 @@ int Freq::fromfreq()
 	int i = 0;
   	while( i<TOTALFREQS && freqtable[i]<freq ) ++i;
   	return i;
-};
+}
 
 int Freq::fromfreq(int index)
 {
 	int i = 0;
   	while( i<TOTALFREQS && freqtable[i]<index ) ++i;
   	return i;
-};
+}
 
 int Freq::tofreq(int index)
 {
@@ -105,6 +105,25 @@ int Freq::tofreq(int index)
 	return freqtable[index];
 }
 
+// frequency doubles for every OCTAVE slots.  OCTAVE must be divisible by 3
+// 27.5 is at i=1
+// 55 is at i=106
+// 110 is at i=211
+// 220 is at i=316
+// 440 is at i=421
+// 880 is at i=526
+double Freq::tofreq_f(double index)
+{
+	if( index < 0.5 ) return 0;
+	return 440.0 * pow(2, (double)(index - 421) / OCTAVE);
+}
+double Freq::fromfreq_f(double f)
+{
+	if( f < 0.5 ) return 0;
+	double result = log(f / 440) / log(2.0) * OCTAVE + 421;
+	return result < 0 ? 0 : result;
+}
+
 Freq& Freq::operator++()
 {
 	if(freq < TOTALFREQS) ++freq;
@@ -136,17 +155,8 @@ void Units::init()
 	topower[INFINITYGAIN * 10] = 0;   // infinity gain
 
 	Freq::freqtable = new int[TOTALFREQS + 1];
-// starting frequency
-	double freq1 = 27.5, freq2 = 55;
-// Some number divisable by three.  This depends on the value of TOTALFREQS
-	int scale = 105;
-
-	Freq::freqtable[0] = 0;
-	for(int i = 1, j = 0; i <= TOTALFREQS; i++, j++) {
-		Freq::freqtable[i] = (int)(freq1 + (freq2 - freq1) / scale * j + 0.5);
-		if(j < scale) continue;
-		freq1 = freq2;  freq2 *= 2;  j = 0;
-	}
+	for( int i=0; i<=TOTALFREQS; ++i )
+		Freq::freqtable[i] = Freq::tofreq_f(i);
 }
 void Units::finit()
 {
@@ -156,7 +166,8 @@ void Units::finit()
 
 // give text representation as time
 char* Units::totext(char *text, double seconds, int time_format,
-			int sample_rate, float frame_rate, float frames_per_foot)
+			int sample_rate, float frame_rate, float frames_per_foot,
+			double timecode_offset)
 {
 	int64_t hour, feet, frame;
 	int minute, second, thousandths;
@@ -198,6 +209,8 @@ char* Units::totext(char *text, double seconds, int time_format,
 		sprintf(text, "%02d:%02d:%02d", (int)hour, minute, second);
 		break; }
 
+	case TIME_TIMECODE:
+		seconds += timecode_offset; // fall thru
 	case TIME_HMSF: {
 		seconds = fabs(seconds) + 1.0e-6;
 		hour = seconds/3600;
@@ -253,10 +266,11 @@ char* Units::totext(char *text, double seconds, int time_format,
 
 // give text representation as time
 char* Units::totext(char *text, int64_t samples, int samplerate,
-		int time_format, float frame_rate, float frames_per_foot)
+		int time_format, float frame_rate, float frames_per_foot,
+		double timecode_offset)
 {
 	return totext(text, (double)samples/samplerate, time_format,
-			samplerate, frame_rate, frames_per_foot);
+		samplerate, frame_rate, frames_per_foot, timecode_offset);
 }
 
 int64_t Units::get_int64(const char *&bp)
@@ -289,7 +303,8 @@ void Units::skip_seperators(const char *&bp)
 }
 
 int64_t Units::fromtext(const char *text, int samplerate, int time_format,
-			float frame_rate, float frames_per_foot)
+			float frame_rate, float frames_per_foot,
+			double timecode_offset)
 {
 	int64_t hours, total_samples;
 	int minutes, frames, feet;
@@ -310,12 +325,15 @@ int64_t Units::fromtext(const char *text, int samplerate, int time_format,
 		total_seconds = seconds + minutes*60 + hours*3600;
 		break; }
 
+	case TIME_TIMECODE:
 	case TIME_HMSF: {
 		hours = get_int64(text);    skip_seperators(text);
 		minutes = get_int64(text);  skip_seperators(text);
 		seconds = get_int64(text);  skip_seperators(text);
 		frames = get_int64(text);
 		total_seconds = frames/frame_rate + seconds + minutes*60 + hours*3600;
+		if( time_format == TIME_TIMECODE )
+			total_seconds -= timecode_offset;
 		break; }
 
 	case TIME_SAMPLES: {
@@ -355,10 +373,11 @@ int64_t Units::fromtext(const char *text, int samplerate, int time_format,
 }
 
 double Units::text_to_seconds(const char *text, int samplerate, int time_format,
-				float frame_rate, float frames_per_foot)
+				float frame_rate, float frames_per_foot,
+				double timecode_offset)
 {
 	return (double)fromtext(text, samplerate, time_format,
-				frame_rate, frames_per_foot) / samplerate;
+		frame_rate, frames_per_foot, timecode_offset) / samplerate;
 }
 
 
@@ -371,6 +390,7 @@ int Units::timeformat_totype(char *tcf)
 	if (!strcmp(tcf,TIME_HMS2__STR)) return(TIME_HMS2);
 	if (!strcmp(tcf,TIME_HMS3__STR)) return(TIME_HMS3);
 	if (!strcmp(tcf,TIME_HMSF__STR)) return(TIME_HMSF);
+	if (!strcmp(tcf,TIME_TIMECODE__STR)) return(TIME_TIMECODE);
 	if (!strcmp(tcf,TIME_SAMPLES__STR)) return(TIME_SAMPLES);
 	if (!strcmp(tcf,TIME_SAMPLES_HEX__STR)) return(TIME_SAMPLES_HEX);
 	if (!strcmp(tcf,TIME_FRAMES__STR)) return(TIME_FRAMES);
@@ -488,6 +508,7 @@ const char* Units::print_time_format(int time_format, char *string)
 	case TIME_SECONDS:     fmt = TIME_SECONDS_TEXT;               break;
 	case TIME_MS1:
 	case TIME_MS2:         fmt = TIME_MS2_TEXT;                   break;
+	case TIME_TIMECODE:    fmt = TIME_TIMECODE_TEXT;              break;
 	}
 	return strcpy(string,fmt);
 }
@@ -503,6 +524,7 @@ int Units::text_to_format(const char *string)
 	if(!strcmp(string, TIME_HMS3_TEXT)) return TIME_HMS3;
 	if(!strcmp(string, TIME_SECONDS_TEXT)) return TIME_SECONDS;
 	if(!strcmp(string, TIME_MS2_TEXT)) return TIME_MS2;
+	if(!strcmp(string, TIME_TIMECODE_TEXT)) return TIME_TIMECODE;
 	return TIME_HMS;
 }
 
@@ -607,6 +629,7 @@ const char* Units::format_to_separators(int time_format)
 		case TIME_HMS:         return "0:00:00.000";
 		case TIME_HMS2:        return "0:00:00";
 		case TIME_HMS3:        return "00:00:00";
+		case TIME_TIMECODE:
 		case TIME_HMSF:        return "0:00:00:00";
 		case TIME_SAMPLES:     return 0;
 		case TIME_SAMPLES_HEX: return 0;