Feature: 量化导出

Vescrity · May 16, 2024 · 463ada8 · 463ada8
1 parent 9afe764
commit 463ada8
Show file tree

Hide file tree

Showing 8 changed files with 129 additions and 38 deletions.
diff --git a/README.md b/README.md
@@ -11,7 +11,7 @@
 - [x] BPM 推断
 - [x] midi 导出
 - [x] 区段筛选编辑
-- [ ] 量化后导出
+- [x] 量化导出
 - [ ] 自定义配置
 - [ ] 命令批处理
 

diff --git a/workspace/Midi_Writer.cpp b/workspace/Midi_Writer.cpp
@@ -9,7 +9,8 @@ void Midi_Writer::open(const string &filename)
 }
 void Midi_Writer::set_bpm(const long double &bpm)
 {
-  microsec_per_beat = 60000000ul / bpm;
+  uint32_t microsec_per_beat = 60000000ul / bpm;
+  tick_time = microsec_per_beat / TPQN;
   // TODO: 写入文件
   outfile.write("MTrk", 4);
   writer.append(0);
@@ -56,7 +57,7 @@ void Midi_Writer::close()
 }
 Midi_Writer::Midi_Writer()
 {
-  TPQN = 120;
+  TPQN = 0xF0;
   numerator = 4;
   power2 = 2;
 }
@@ -78,7 +79,6 @@ std::vector<unsigned char> VLQ_encode(unsigned long ticks)
 
 uint32_t Midi_Writer::msec2tick(const uint32_t &msec)
 {
-  auto tick_time = microsec_per_beat / TPQN;
   return msec * 1000 / tick_time;
 }
 

diff --git a/workspace/Midi_Writer.h b/workspace/Midi_Writer.h
@@ -10,7 +10,8 @@ class Midi_Writer
   uint8_t TPQN;
   uint8_t numerator;
   uint8_t power2;
-  uint32_t microsec_per_beat;
+  uint tick_time;
+  // uint32_t microsec_per_beat;
   std::ofstream outfile;
   Binary_Writer writer;
 

diff --git a/workspace/core.cpp b/workspace/core.cpp
@@ -6,7 +6,7 @@
 #include <math.h>
 using namespace std;
 
-void NoteList::key_log(const string &s, const ull &t) { push_back(NoteEvent(s, t)); }
+void NoteList::key_log(const string &s, const uint32_t &t) { push_back(NoteEvent(s, t)); }
 
 void NoteList::show() const
 {
@@ -25,19 +25,28 @@ void NoteList::clear()
   dtime_ready = nindex_ready = bpm_ready = 0;
   bpm = 0;
 }
-void NoteList::save_midi(const string &filename, uint8_t numerator, uint8_t power2) const
+void NoteList::save_midi(const string &filename, uint8_t numerator, uint8_t power2, bool quan, int8_t qp2) const
 {
   Midi_Writer writer;
   writer.open(filename);
   writer.set_signature(numerator, power2);
   writer.set_bpm(get_bpm());
   auto n = list.size();
+  long double _time = 240000.0 / get_bpm() / (1 << qp2);
   calc_dtime();
   for (int i = 0; i < n - 1; i++)
   {
-    writer.addnote(list[i].get_number(), writer.msec2tick(dtime[i]));
+    auto ti = dtime[i];
+    if (quan)
+    {
+      ti = round(ti / _time);
+      if (ti < 1)
+        ti = 1;
+      ti *= _time;
+    }
+    writer.addnote(list[i].get_number(), writer.msec2tick(ti));
   }
-  writer.addnote(list[n - 1].get_number(), 120);
+  writer.addnote(list[n - 1].get_number(), 0xF0);
   writer.close();
 }
 

diff --git a/workspace/core.h b/workspace/core.h
@@ -11,11 +11,11 @@ class NoteEvent
   short sharp_flat;
   // prefix,octave = 6,0 -> 440Hz
   short octave;
-  ull time;
+  uint32_t time;
   friend class NoteList;
 
 public:
-  NoteEvent(const string &str, const ull &t)
+  NoteEvent(const string &str, const uint32_t &t)
       : prefix(str), time(t), sharp_flat(0), octave(0){};
   void show() const;
   string html() const;
@@ -25,11 +25,11 @@ class NoteList
 {
   vector<NoteEvent> list;
   mutable bool dtime_ready;
-  mutable vector<ull> dtime;
+  mutable vector<uint32_t> dtime;
   mutable bool nindex_ready;
   mutable vector<unsigned> nindex;
   void calc_nindex() const;
-  ull time_try() const;
+  uint32_t time_try() const;
   void calc_dtime() const;
   mutable bool bpm_ready;
   mutable double bpm;
@@ -41,7 +41,7 @@ class NoteList
     bpm = -1;
     nindex_ready = dtime_ready = bpm_ready = 0;
   }
-  void save_midi(const string &filename, uint8_t numerator, uint8_t power2) const;
+  void save_midi(const string &filename, uint8_t numerator, uint8_t power2, bool quantize = 0, int8_t qp2 = 4) const;
   std::string html() const;
   std::vector<unsigned> get_nindex() const;
   void push_back(const NoteEvent &e) { list.push_back(e); }
@@ -53,8 +53,8 @@ class NoteList
     nindex.clear();
     bpm = b;
   };
-  void key_log(const string &s, const ull &t);
-  void operate(const unsigned &st,const unsigned &ed,const string &pattern,const string &oper);
+  void key_log(const string &s, const uint32_t &t);
+  void operate(const unsigned &st, const unsigned &ed, const string &pattern, const string &oper);
   void show() const;
   void clear();
 };
diff --git a/workspace/core_algorithm.cpp b/workspace/core_algorithm.cpp
@@ -13,8 +13,7 @@ void NoteList::calc_nindex() const
   nindex.push_back(1);
   for (int i = 1; i <= n; i++)
   {
-    ull len = round(dtime[i - 1] * 1.0 / _16time);
-    dout << len << "\n";
+    uint32_t len = round(dtime[i - 1] * 1.0 / _16time);
     nindex.push_back((len >= 2 ? len : 1) + 2 + nindex[i - 1]);
   }
 
@@ -35,14 +34,14 @@ void NoteList::calc_dtime() const
   }
   dtime_ready = 1;
 }
-double time2bpm(const ull &t, int as = 16)
+double time2bpm(const uint32_t &t, int as = 16)
 {
   return 240000.0 / t / as;
 }
-ull TIME_1 = 10;
-ull TIME_2 = 25;
-ull TIME_3 = 50;
-ull NoteList::time_try() const
+uint32_t TIME_1 = 10;
+uint32_t TIME_2 = 25;
+uint32_t TIME_3 = 50;
+uint32_t NoteList::time_try() const
 {
   calc_dtime();
   auto stime = dtime;
@@ -114,7 +113,7 @@ ull NoteList::time_try() const
   }
   if (q_size() < 5)
     return 0;
-  ull sum = 0;
+  uint32_t sum = 0;
   for (int i = head; i < tail; i++)
   {
     sum += stime[i];

diff --git a/workspace/editor.cpp b/workspace/editor.cpp
@@ -33,10 +33,16 @@ void Editor::editor_update()
 }
 void Editor::on_actionMidi_triggered()
 {
-  QString fname = QFileDialog::getSaveFileName(this, tr("保存文件"), QDir::currentPath(), tr("MIDI 文件(*.mid)"));
+  QString fname = QFileDialog::getSaveFileName(
+      this, tr("保存文件"),
+      QDir::currentPath(),
+      tr("MIDI 文件(*.mid)"));
   if (!fname.isEmpty())
   {
-    current_list.save_midi(fname.toStdString(), numerator, power2);
+    current_list.save_midi(
+        fname.toStdString(), numerator, power2,
+        ui->quantizeCheckBox->isChecked(),
+        ui->quantizeComboBox->currentIndex() + 2);
     ui->statusBar->showMessage(tr("文件已导出"));
   }
   else
@@ -47,7 +53,10 @@ void Editor::on_actionMidi_triggered()
 
 void Editor::on_actionText_triggered()
 {
-  QString fname = QFileDialog::getSaveFileName(this, tr("保存文件"), QDir::currentPath(), tr("HTML 文件(*.htm)"));
+  QString fname = QFileDialog::getSaveFileName(
+      this, tr("保存文件"),
+      QDir::currentPath(),
+      tr("HTML 文件(*.htm)"));
   if (!fname.isEmpty())
   {
     auto s = ui->editorBrowser->toHtml();
@@ -121,6 +130,3 @@ void Editor::on_x2Button_clicked()
   current_list.set_bpm(ui->bpmSpinBox->value() * 2.0);
   editor_update();
 }
-
-
-
diff --git a/workspace/editor.ui b/workspace/editor.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>401</width>
-    <height>354</height>
+    <width>430</width>
+    <height>435</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -134,7 +134,7 @@
         </item>
        </layout>
       </item>
-      <item row="2" column="1">
+      <item row="3" column="1">
        <widget class="QTextBrowser" name="editorBrowser">
         <property name="font">
          <font>
@@ -143,7 +143,7 @@
         </property>
        </widget>
       </item>
-      <item row="3" column="0">
+      <item row="4" column="0">
        <widget class="QLabel" name="label_3">
         <property name="toolTip">
          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;音符筛选规则。&lt;br/&gt;例如输入 367 会筛选选中范围中的 3 6 7&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
@@ -153,10 +153,10 @@
         </property>
        </widget>
       </item>
-      <item row="3" column="1">
+      <item row="4" column="1">
        <widget class="QLineEdit" name="patternEdit"/>
       </item>
-      <item row="4" column="0">
+      <item row="5" column="0">
        <widget class="QLabel" name="label_4">
         <property name="toolTip">
          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;对筛选的内容执行的操作&lt;br/&gt;升/降/还原: # b 0&lt;br/&gt;提升/降低八度: + -&lt;br/&gt;替换: r[替换后的音符]&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
@@ -166,9 +166,73 @@
         </property>
        </widget>
       </item>
-      <item row="4" column="1">
+      <item row="5" column="1">
        <widget class="QLineEdit" name="commandEdit"/>
       </item>
+      <item row="2" column="0">
+       <widget class="QLabel" name="label_6">
+        <property name="toolTip">
+         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;辅助功能，仅对单个音符长度进行量化。可能存在误差，仍需在 DAW 中进一步处理。&lt;/p&gt;&lt;p&gt;仅在导出 Midi 时生效&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+        </property>
+        <property name="text">
+         <string>量化: </string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="1">
+       <layout class="QHBoxLayout" name="horizontalLayout_2">
+        <item>
+         <widget class="QCheckBox" name="quantizeCheckBox">
+          <property name="text">
+           <string>启用</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <layout class="QHBoxLayout" name="horizontalLayout_4">
+          <item>
+           <widget class="QLabel" name="label_5">
+            <property name="text">
+             <string>对齐至: </string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QComboBox" name="quantizeComboBox">
+            <property name="currentIndex">
+             <number>2</number>
+            </property>
+            <item>
+             <property name="text">
+              <string>1/4</string>
+             </property>
+            </item>
+            <item>
+             <property name="text">
+              <string>1/8</string>
+             </property>
+            </item>
+            <item>
+             <property name="text">
+              <string>1/16</string>
+             </property>
+            </item>
+            <item>
+             <property name="text">
+              <string>1/32</string>
+             </property>
+            </item>
+            <item>
+             <property name="text">
+              <string>1/64</string>
+             </property>
+            </item>
+           </widget>
+          </item>
+         </layout>
+        </item>
+       </layout>
+      </item>
      </layout>
     </item>
     <item>
@@ -185,7 +249,7 @@
     <rect>
      <x>0</x>
      <y>0</y>
-     <width>401</width>
+     <width>430</width>
      <height>24</height>
     </rect>
    </property>
@@ -209,7 +273,14 @@
     </property>
     <addaction name="actionHelp"/>
    </widget>
+   <widget class="QMenu" name="menu">
+    <property name="title">
+     <string>导入</string>
+    </property>
+    <addaction name="actionImportNote"/>
+   </widget>
    <addaction name="exportMenu"/>
+   <addaction name="menu"/>
    <addaction name="helpMenu"/>
    <addaction name="aboutMenu"/>
   </widget>
@@ -244,6 +315,11 @@
     <string>关于本应用</string>
    </property>
   </action>
+  <action name="actionImportNote">
+   <property name="text">
+    <string>Note</string>
+   </property>
+  </action>
  </widget>
  <resources/>
  <connections/>