1 #include "stdafx.h"
2 #include "MciCore.h"
3 #include "AudioCommon.h"
4 #include "MusicPlayer2.h"
5 #include "AudioTag.h"
6 #include "FilePathHelper.h"
7
8
CMciCore()9 CMciCore::CMciCore()
10 {
11 CDllLib::Init(L"winmm.dll");
12
13 if (!IsSucceed())
14 {
15 const wstring& info = theApp.m_str_table.LoadText(L"LOG_MCI_INIT_FAILED");
16 theApp.WriteLog(info);
17 }
18 }
19
20
~CMciCore()21 CMciCore::~CMciCore()
22 {
23 //if (m_dll_module != NULL)
24 //{
25 // FreeLibrary(m_dll_module);
26 // m_dll_module = NULL;
27 //}
28 CDllLib::UnInit();
29 }
30
GetFunction()31 bool CMciCore::GetFunction()
32 {
33 bool rtn = true;
34 //获取函数入口
35 mciSendStringW = (_mciSendStringW)::GetProcAddress(m_dll_module, "mciSendStringW");
36 mciGetErrorStringW = (_mciGetErrorStringW)::GetProcAddress(m_dll_module, "mciGetErrorStringW");
37 //判断是否成功
38 rtn &= (mciSendStringW != NULL);
39 rtn &= (mciGetErrorStringW != NULL);
40 return rtn;
41 }
42
InitCore()43 void CMciCore::InitCore()
44 {
45 //向支持的文件列表插入原生支持的文件格式
46 CAudioCommon::m_surpported_format.clear();
47 SupportedFormat format;
48 format.description = theApp.m_str_table.LoadText(L"TXT_FILE_TYPE_BASE");
49 format.extensions.push_back(L"mp3");
50 format.extensions.push_back(L"wma");
51 format.extensions.push_back(L"wav");
52 format.extensions.push_back(L"mid");
53 format.extensions_list = L"*.mp3;*.wma;*.wav;*.mid";
54 CAudioCommon::m_surpported_format.push_back(format);
55 CAudioCommon::m_all_surpported_extensions = format.extensions;
56
57 }
58
UnInitCore()59 void CMciCore::UnInitCore()
60 {
61 Stop();
62 Close();
63 }
64
GetAudioType()65 std::wstring CMciCore::GetAudioType()
66 {
67 return std::wstring();
68 }
69
GetChannels()70 int CMciCore::GetChannels()
71 {
72 return 0;
73 }
74
GetFReq()75 int CMciCore::GetFReq()
76 {
77 return 0;
78 }
79
GetSoundFontName()80 wstring CMciCore::GetSoundFontName()
81 {
82 return wstring();
83 }
84
Open(const wchar_t * file_path)85 void CMciCore::Open(const wchar_t * file_path)
86 {
87 m_file_path = file_path;
88 CFilePathHelper path_helper{ file_path };
89 m_file_type = path_helper.GetFileExtension();
90 if(m_success)
91 {
92 m_error_code = mciSendStringW((L"open \"" + m_file_path + L"\"").c_str(), NULL, 0, 0);
93
94 //获取MIDI信息
95 if (IsMidi())
96 {
97 wchar_t buff[16];
98 m_error_code = mciSendStringW((L"status \"" + m_file_path + L"\" length").c_str(), buff, 15, 0);
99 m_midi_info.midi_length = _wtoi(buff) / 4;
100 m_error_code = mciSendStringW((L"status \"" + m_file_path + L"\" tempo").c_str(), buff, 15, 0);
101 m_midi_info.speed = _wtoi(buff);
102 if(m_midi_info.speed > 0)
103 m_midi_info.tempo = 60000000 / m_midi_info.speed;
104 }
105 }
106
107 }
108
Close()109 void CMciCore::Close()
110 {
111 if (m_success)
112 {
113 m_error_code = mciSendStringW((L"close \"" + m_file_path + L"\"").c_str(), NULL, 0, 0);
114 m_playing = PS_STOPED;
115 }
116 }
117
Play()118 void CMciCore::Play()
119 {
120 if (m_success)
121 {
122 m_error_code = mciSendStringW((L"play \"" + m_file_path + L"\"").c_str(), NULL, 0, 0);
123 m_playing = PS_PLAYING;
124 }
125 }
126
Pause()127 void CMciCore::Pause()
128 {
129 if (m_success)
130 {
131 m_error_code = mciSendStringW((L"pause \"" + m_file_path + L"\"").c_str(), NULL, 0, 0);
132 m_playing = PS_PAUSED;
133 }
134 }
135
Stop()136 void CMciCore::Stop()
137 {
138 if (m_success)
139 {
140 m_error_code = mciSendStringW((L"stop \"" + m_file_path + L"\"").c_str(), NULL, 0, 0);
141 m_playing = PS_STOPED;
142 SetCurPosition(0);
143 }
144 }
145
SetVolume(int volume)146 void CMciCore::SetVolume(int volume)
147 {
148 if (m_success && !IsMidi())
149 {
150 wchar_t buff[16];
151 _itow_s(volume * 10, buff, 10); //设置音量100%时为1000
152 m_error_code = mciSendStringW((L"setaudio \"" + m_file_path + L"\" volume to " + buff).c_str(), NULL, 0, 0);
153 }
154 }
155
SetSpeed(float speed)156 void CMciCore::SetSpeed(float speed)
157 {
158 }
159
SetPitch(int pitch)160 void CMciCore::SetPitch(int pitch)
161 {
162 }
163
SongIsOver()164 bool CMciCore::SongIsOver()
165 {
166 return false;
167 }
168
GetCurPosition()169 int CMciCore::GetCurPosition()
170 {
171 if (m_success)
172 {
173 wchar_t buff[16];
174 m_error_code = mciSendStringW((L"status \"" + m_file_path + L"\" position").c_str(), buff, 15, 0);
175 int position = _wtoi(buff);
176 if(IsMidi()) //如果是MIDI，MCI获取到的长度并不是毫秒数，而是MIDI的节拍数
177 {
178 m_midi_info.midi_position = position / 4;
179 position = position * m_midi_info.speed;
180 }
181 return position;
182 }
183 return 0;
184 }
185
GetSongLength()186 int CMciCore::GetSongLength()
187 {
188 if (m_success)
189 {
190 return GetMciSongLength(m_file_path);
191 }
192 return 1;
193 }
194
SetCurPosition(int position)195 void CMciCore::SetCurPosition(int position)
196 {
197 if (m_success)
198 {
199 if (IsMidi())
200 {
201 if (m_midi_info.speed > 0)
202 position = position / m_midi_info.speed;
203 }
204
205 wchar_t buff[16];
206 _itow_s(position, buff, 10);
207 m_error_code = mciSendStringW((L"seek \"" + m_file_path + L"\" to " + buff).c_str(), NULL, 0, 0); //定位到新的位置
208 if (m_playing)
209 m_error_code = mciSendStringW((L"play \"" + m_file_path + L"\"").c_str(), NULL, 0, 0); //继续播放
210
211 }
212 }
213
GetAudioInfo(SongInfo & song_info,int flag)214 void CMciCore::GetAudioInfo(SongInfo & song_info, int flag)
215 {
216 if (m_success)
217 {
218 if (flag&AF_LENGTH)
219 song_info.end_pos.fromInt(GetMciSongLength(song_info.file_path));
220 if (flag&AF_BITRATE)
221 song_info.bitrate = GetMciBitrate(song_info.file_path);
222 if (flag&AF_TAG_INFO)
223 {
224 CAudioTag audio_tag(song_info);
225 audio_tag.GetAudioTag();
226 audio_tag.GetAudioRating();
227 }
228 }
229
230 }
231
GetAudioInfo(const wchar_t * file_path,SongInfo & song_info,int flag)232 void CMciCore::GetAudioInfo(const wchar_t * file_path, SongInfo & song_info, int flag)
233 {
234 if (m_success && ((flag&AF_LENGTH) || (flag&AF_BITRATE)))
235 {
236 m_error_code = mciSendStringW((L"open \"" + wstring(file_path) + L"\"").c_str(), NULL, 0, 0);
237 if (flag&AF_LENGTH)
238 {
239 wchar_t buff[16];
240 m_error_code = mciSendStringW((L"status \"" + wstring(file_path) + L"\" length").c_str(), buff, 15, 0); //获取当前歌曲的长度，并储存在buff数组里
241 song_info.end_pos.fromInt(_wtoi(buff));
242 }
243 if (flag&AF_BITRATE)
244 song_info.bitrate = GetMciBitrate(file_path);
245 if (flag&AF_TAG_INFO)
246 {
247 CAudioTag audio_tag(song_info);
248 audio_tag.GetAudioTag();
249 audio_tag.GetAudioRating();
250 }
251
252 m_error_code = mciSendStringW((L"close \"" + wstring(file_path) + L"\"").c_str(), NULL, 0, 0);
253 }
254 }
255
IsMidi()256 bool CMciCore::IsMidi()
257 {
258 return m_file_type==L"mid" || m_file_type == L"midi";
259 }
260
IsMidiConnotPlay()261 bool CMciCore::IsMidiConnotPlay()
262 {
263 return false;
264 }
265
GetMidiInnerLyric()266 std::wstring CMciCore::GetMidiInnerLyric()
267 {
268 return std::wstring();
269 }
270
GetMidiInfo()271 MidiInfo CMciCore::GetMidiInfo()
272 {
273 return m_midi_info;
274 }
275
MidiNoLyric()276 bool CMciCore::MidiNoLyric()
277 {
278 return true;
279 }
280
GetPlayingState()281 PlayingState CMciCore::GetPlayingState()
282 {
283 return m_playing;
284 }
285
ApplyEqualizer(int channel,int gain)286 void CMciCore::ApplyEqualizer(int channel, int gain)
287 {
288 }
289
SetReverb(int mix,int time)290 void CMciCore::SetReverb(int mix, int time)
291 {
292 }
293
ClearReverb()294 void CMciCore::ClearReverb()
295 {
296 }
297
GetFFTData(float fft_data[FFT_SAMPLE])298 void CMciCore::GetFFTData(float fft_data[FFT_SAMPLE])
299 {
300 memset(fft_data, 0, sizeof(fft_data));
301 }
302
GetErrorCode()303 int CMciCore::GetErrorCode()
304 {
305 return m_error_code;
306 }
307
GetErrorInfo(int error_code)308 std::wstring CMciCore::GetErrorInfo(int error_code)
309 {
310 wchar_t buff[128]{};
311 mciGetErrorStringW(error_code, buff, sizeof(buff) / sizeof(wchar_t)); //根据错误代码获取错误信息
312 return L"MCI: " + wstring(buff) + m_file_path;
313 }
314
GetErrorInfo()315 std::wstring CMciCore::GetErrorInfo()
316 {
317 wchar_t buff[128]{};
318 mciGetErrorStringW(m_error_code, buff, sizeof(buff) / sizeof(wchar_t));
319 return buff;
320 }
321
EncodeAudio(SongInfo song_info,const wstring & dest_file_path,EncodeFormat encode_format,void * encode_para,int dest_freq,EncodeAudioProc proc)322 bool CMciCore::EncodeAudio(SongInfo song_info, const wstring& dest_file_path, EncodeFormat encode_format, void* encode_para, int dest_freq, EncodeAudioProc proc)
323 {
324 return false;
325 }
326
InitEncoder()327 bool CMciCore::InitEncoder()
328 {
329 return false;
330 }
331
UnInitEncoder()332 void CMciCore::UnInitEncoder()
333 {
334 }
335
IsFreqConvertAvailable()336 bool CMciCore::IsFreqConvertAvailable()
337 {
338 return false;
339 }
340
GetMidiPosition()341 void CMciCore::GetMidiPosition()
342 {
343 if (IsMidi())
344 {
345 wchar_t buff[16];
346 m_error_code = mciSendStringW((L"status \"" + m_file_path + L"\" position").c_str(), buff, 15, 0);
347 m_midi_info.midi_position = _wtoi(buff) / 4;
348 }
349 }
350
GetMciSongLength(const std::wstring & file_path)351 int CMciCore::GetMciSongLength(const std::wstring& file_path)
352 {
353 wchar_t buff[16];
354 m_error_code = mciSendStringW((L"status \"" + file_path + L"\" length").c_str(), buff, 15, 0); //获取当前歌曲的长度，并储存在buff数组里
355 int length = _wtoi(buff);
356 if (IsMidi())
357 {
358 m_midi_info.midi_length = length / 4;
359 if (m_midi_info.speed > 0)
360 length = length * m_midi_info.speed;
361 }
362 return length;
363 }
364
GetMciBitrate(const std::wstring & file_path)365 int CMciCore::GetMciBitrate(const std::wstring & file_path)
366 {
367 wchar_t buff[16];
368 m_error_code = mciSendStringW((L"status \"" + file_path + L"\" bytespersec").c_str(), buff, 15, 0);
369 int bitrate = _wtoi(buff);
370 bitrate = bitrate * 8 / 1000;
371 return bitrate;
372 }
373