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1 #include "foobar2000-sdk-pch.h"
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2 #include "playback_control.h"
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3 #include "titleformat.h"
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4
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5 static double parseFraction(const char * fraction) {
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6 unsigned v = 0, d = 1;
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7 while(pfc::char_is_numeric( *fraction) ) {
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8 d *= 10;
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9 v *= 10;
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10 v += (unsigned) ( *fraction - '0' );
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11 ++fraction;
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12 }
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13 PFC_ASSERT( *fraction == 0 );
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14 return (double)v / (double)d;
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15 }
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16
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17 static double parse_time(const char * time) {
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18 unsigned vTotal = 0, vCur = 0;
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19 for(;;) {
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20 char c = *time++;
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21 if (c == 0) return (double) (vTotal + vCur);
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22 else if (pfc::char_is_numeric( c ) ) {
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23 vCur = vCur * 10 + (unsigned)(c-'0');
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24 } else if (c == ':') {
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25 if (vCur >= 60) {PFC_ASSERT(!"Invalid input"); return 0; }
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26 vTotal += vCur; vCur = 0; vTotal *= 60;
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27 } else if (c == '.') {
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28 return (double) (vTotal + vCur) + parseFraction(time);
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29 } else {
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30 PFC_ASSERT(!"Invalid input"); return 0;
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31 }
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32 }
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33 }
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34
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35 double playback_control::playback_get_length()
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36 {
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37 double rv = 0;
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38 metadb_handle_ptr ptr;
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39 if (get_now_playing(ptr))
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40 {
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41 rv = ptr->get_length();
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42 }
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43 return rv;
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44 }
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45
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46 double playback_control::playback_get_length_ex() {
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47 double rv = 0;
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48 metadb_handle_ptr ptr;
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49 if (get_now_playing(ptr))
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50 {
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51 rv = ptr->get_length();
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52 if (rv <= 0) {
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53 pfc::string8 temp;
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54 titleformat_object::ptr script;
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55 titleformat_compiler::get()->compile_force(script, "[%length_ex%]");
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56 this->playback_format_title(NULL, temp, script, NULL, display_level_titles);
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57 if (temp.length() > 0) rv = parse_time(temp);
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58 }
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59 }
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60 return rv;
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61 }
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62
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63
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64
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65
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66
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67
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68 void playback_control::userPrev() {
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69 userActionHook();
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70 if (this->is_playing() && this->playback_can_seek() && this->playback_get_position() > 5) {
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71 this->playback_seek(0);
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72 } else {
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73 this->previous();
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74 }
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75 }
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76
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77 void playback_control::userNext() {
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78 userActionHook();
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79 this->start(track_command_next);
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80 }
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81
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82 void playback_control::userMute() {
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83 userActionHook();
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84 this->volume_mute_toggle();
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85 }
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86
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87 void playback_control::userStop() {
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88 userActionHook();
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89 this->stop();
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90 }
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91
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92 void playback_control::userPlay() {
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93 userActionHook();
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94 this->play_or_pause();
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95 }
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96
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97 void playback_control::userPause() {
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98 userActionHook();
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99 nonUserPause();
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100 }
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101
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102 void playback_control::nonUserPause() {
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103 if (this->is_playing()) {
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104 this->pause(true);
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105 }
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106 }
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107
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108 void playback_control::userStart() {
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109 userActionHook();
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110 if (this->is_playing()) {
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111 this->pause(false);
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112 } else {
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113 this->start();
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114 }
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115 }
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116 static const double seekDelta = 30;
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117 void playback_control::userFastForward() {
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118 userActionHook();
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119 if (!this->playback_can_seek()) {
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120 this->userNext(); return;
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121 }
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122 this->playback_seek_delta(seekDelta);
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123 }
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124
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125 void playback_control::userRewind() {
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126 userActionHook();
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127 if (!this->playback_can_seek()) {
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128 this->userPrev(); return;
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129 }
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130 double p = this->playback_get_position();
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131 if (p < 0) return;
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132 if (p < seekDelta) {
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133 if (p < seekDelta / 3) {
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134 this->userPrev();
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135 } else {
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136 this->playback_seek(0);
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137 }
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138 } else {
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139 this->playback_seek_delta(-30);
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140 }
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141 }
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