private Audio( int handle, string filename )
{
Handle = handle;
Filename = filename;
Info = Bass.BASS_ChannelGetInfo(handle);
Volume = 1.0f;
}
private void BassPlayerLoad(string url)
{
Un4seen.Bass.BASSActive isActive = default(Un4seen.Bass.BASSActive);
isActive = Bass.BASS_ChannelIsActive(stream);
if (isActive == Un4seen.Bass.BASSActive.BASS_ACTIVE_PLAYING)
{
Bass.BASS_ChannelStop(stream);
}
// If ofd.FileName = "" Then Exit Sub
stream = Bass.BASS_StreamCreateFile(url, 0, 0, BASSFlag.BASS_STREAM_AUTOFREE | BASSFlag.BASS_STREAM_PRESCAN);
//stream = Bass.BASS_StreamCreateURL(url, 0, BASSFlag.BASS_DEFAULT, null, IntPtr.Zero);
// stream = Bass.BASS_Stream
Bass.BASS_ChannelPlay(stream, false);
Un4seen.Bass.BASS_CHANNELINFO CI = new Un4seen.Bass.BASS_CHANNELINFO();
Un4seen.Bass.AddOn.Tags.TAG_INFO TI = new Un4seen.Bass.AddOn.Tags.TAG_INFO();
// WF = New Un4seen.Bass.Misc.WaveForm(ofd.FileName, New Un4seen.Bass.Misc.WAVEFORMPROC(AddressOf MyWaveFormCallback), Me)
// WF.RenderStart(True, BASSFlag.BASS_DEFAULT)
tmrUpdateControls.Start();
tmrVisuals.Start();
TagLib.File f = TagLib.File.Create(url);
lblTrackInfo.Text = f.Tag.Artists[0] + " - " + f.Tag.Title;
cmdPlay.BackgroundImage = pbPausePick.BackgroundImage;
currentPlayingTrackFile = url;
tmrUpdateControls_Tick(null, null);
}
public static BASS_CHANNELINFO BASS_ChannelGetInfo(int handle)
{
BASS_CHANNELINFO info = new BASS_CHANNELINFO();
if (BASS_ChannelGetInfo(handle, info))
{
return(info);
}
return(null);
}
public BaseDSP()
{
_bitwidth = 0x10;
_samplerate = 0xac44;
_numchans = 2;
_channelInfo = new BASS_CHANNELINFO();
_user = IntPtr.Zero;
_dspProc = new DSPPROC(DSPCallback);
if (Un4seen.Bass.Bass.BASS_GetConfig(BASSConfig.BASS_CONFIG_FLOATDSP) == 1)
{
_bitwidth = 0x20;
}
}
/// <summary>
/// 播放当前流
/// </summary>
private void PlayCurrentStream()
{
// Play Stream
if (ActiveStreamHandle != 0 && Un4seen.Bass.Bass.BASS_ChannelPlay(ActiveStreamHandle, false))
{
Un4seen.Bass.BASS_CHANNELINFO info = new Un4seen.Bass.BASS_CHANNELINFO();
Un4seen.Bass.Bass.BASS_ChannelGetInfo(ActiveStreamHandle, info);
}
else
{
Debug.WriteLine("Error={0}", Un4seen.Bass.Bass.BASS_ErrorGetCode());
}
}
/// <summary>
/// 打开文件
/// </summary>
/// <param name="filename">文件名</param>
public void OpenFile(string filename)
{
openningFile = filename;
Stop();
pendingOperation = PendingOperation.None;
int handle = CreateLocalFileStream(filename);
handle = SetEQ(handle);
if (handle != 0)
{
ActiveStreamHandle = handle;
ChannelLength = TimeSpan.FromSeconds(Un4seen.Bass.Bass.BASS_ChannelBytes2Seconds(ActiveStreamHandle, Un4seen.Bass.Bass.BASS_ChannelGetLength(ActiveStreamHandle, 0)));
Un4seen.Bass.BASS_CHANNELINFO info = new Un4seen.Bass.BASS_CHANNELINFO();
Un4seen.Bass.Bass.BASS_ChannelGetInfo(ActiveStreamHandle, info);
sampleFrequency = info.freq;
int syncHandle = Un4seen.Bass.Bass.BASS_ChannelSetSync(ActiveStreamHandle,
Un4seen.Bass.BASSSync.BASS_SYNC_END, 0, endTrackSyncProc, IntPtr.Zero);
if (syncHandle == 0)
{
throw new ArgumentException("Error establishing End Sync on file stream.", "path");
}
CanPlay = true;
RaiseOpenSucceededEvent();
switch (pendingOperation)
{
case PendingOperation.None:
break;
case PendingOperation.Play:
Play();
break;
case PendingOperation.Pause:
Pause();
break;
default:
break;
}
}
else
{
RaiseOpenFailedEvent();
}
}
public Bass_TagReadOnly(string FileName)
{
_bitrate = BassTags.BASS_TAG_GetFromFile(FileName).bitrate;
_channelinfo = BassTags.BASS_TAG_GetFromFile(FileName).channelinfo;
_copyright = BassTags.BASS_TAG_GetFromFile(FileName).copyright;
_duration = BassTags.BASS_TAG_GetFromFile(FileName).duration;
_encodedby = BassTags.BASS_TAG_GetFromFile(FileName).encodedby;
_filename = BassTags.BASS_TAG_GetFromFile(FileName).filename;
_grouping = BassTags.BASS_TAG_GetFromFile(FileName).grouping;
_isrc = BassTags.BASS_TAG_GetFromFile(FileName).isrc;
_mood = BassTags.BASS_TAG_GetFromFile(FileName).mood;
_replaygain_track_gain = BassTags.BASS_TAG_GetFromFile(FileName).replaygain_track_gain;
_replaygain_track_peak = BassTags.BASS_TAG_GetFromFile(FileName).replaygain_track_peak;
_tagType = BassTags.BASS_TAG_GetFromFile(FileName).tagType;
}
public static bool BASS_ChannelGetInfo(int handle, BASS_CHANNELINFO info)
{
bool flag = BASS_ChannelGetInfoInternal(handle, ref info._internal);
if (flag)
{
info.chans = info._internal.chans;
info.ctype = info._internal.ctype;
info.flags = info._internal.flags;
info.freq = info._internal.freq;
info.origres = info._internal.origres;
info.plugin = info._internal.plugin;
info.sample = info._internal.sample;
if ((info.flags & (BASSFlag.BASS_DEFAULT | BASSFlag.BASS_UNICODE)) != BASSFlag.BASS_DEFAULT)
{
info.filename = Marshal.PtrToStringUni(info._internal.filename);
return(flag);
}
info.filename = Marshal.PtrToStringAnsi(info._internal.filename);
}
return(flag);
}
public TAG_INFO(string FileName)
{
title = string.Empty;
artist = string.Empty;
album = string.Empty;
albumartist = string.Empty;
year = string.Empty;
comment = string.Empty;
genre = string.Empty;
track = string.Empty;
copyright = string.Empty;
encodedby = string.Empty;
composer = string.Empty;
publisher = string.Empty;
bpm = string.Empty;
filename = string.Empty;
pictures = new ArrayList();
nativetags = new ArrayList();
channelinfo = new BASS_CHANNELINFO();
filename = FileName;
title = Path.GetFileNameWithoutExtension(FileName);
}
public bool OpenFile(string path)
{
Stop();
if (ActiveStreamHandle != 0)
Bass.BASS_StreamFree(ActiveStreamHandle);
if (System.IO.File.Exists(path))
{
// Create Stream
int newStreamHandle = Bass.BASS_StreamCreateFile(path, 0, 0, BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_PRESCAN);
if (newStreamHandle != 0)
{
ActiveStreamHandle = newStreamHandle;
BASS_CHANNELINFO info = new BASS_CHANNELINFO();
Bass.BASS_ChannelGetInfo(ActiveStreamHandle, info);
sampleFrequency = info.freq;
this.FileTag = TagLib.File.Create(path);
this.ChannelLength = Bass.BASS_ChannelGetLength(ActiveStreamHandle, 0);
this.CanPlay = true;
return true;
}
else
{
this.ActiveStreamHandle = 0;
this.FileTag = null;
this.CanPlay = false;
}
}
return false;
}
private void PlayCurrentStream()
{
// Play Stream
if (ActiveStreamHandle != 0 && Bass.BASS_ChannelPlay(ActiveStreamHandle, false))
{
BASS_CHANNELINFO info = new BASS_CHANNELINFO();
Bass.BASS_ChannelGetInfo(ActiveStreamHandle, info);
}
else
{
#if DEBUG
Debug.WriteLine("Error={0}", Bass.BASS_ErrorGetCode());
#endif
}
}
public bool OpenFile(string path)
{
Stop();
if (ActiveStreamHandle != 0)
{
ClearRepeatRange();
ChannelPosition = 0;
Bass.BASS_StreamFree(ActiveStreamHandle);
}
if (System.IO.File.Exists(path))
{
// Create Stream
FileStreamHandle = ActiveStreamHandle = Bass.BASS_StreamCreateFile(path, 0, 0, BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_PRESCAN);
int streamFX = BassFx.BASS_FX_TempoCreate(FileStreamHandle, BASSFlag.BASS_FX_FREESOURCE);
ChannelLength = Bass.BASS_ChannelBytes2Seconds(FileStreamHandle, Bass.BASS_ChannelGetLength(FileStreamHandle, 0));
FileTag = TagLib.File.Create(path);
GenerateWaveformData(path);
if (ActiveStreamHandle != 0)
{
_bpmProc = new BPMPROC(MyBPMProc);
BassFx.BASS_FX_BPM_CallbackSet(ActiveStreamHandle, _bpmProc, 1.0, Utils.MakeLong(45, 240), BASSFXBpm.BASS_FX_BPM_MULT2, IntPtr.Zero);
initEqualizer();
// Obtain the sample rate of the stream
BASS_CHANNELINFO info = new BASS_CHANNELINFO();
Bass.BASS_ChannelGetInfo(ActiveStreamHandle, info);
sampleFrequency = info.freq;
// Set the stream to call Stop() when it ends.
int syncHandle = Bass.BASS_ChannelSetSync(ActiveStreamHandle,
BASSSync.BASS_SYNC_END,
0,
endTrackSyncProc,
IntPtr.Zero);
if (syncHandle == 0)
throw new ArgumentException("Error establishing End Sync on file stream.", "path");
CanPlay = true;
return true;
}
else
{
ActiveStreamHandle = 0;
FileTag = null;
CanPlay = false;
}
}
return false;
}
/// <summary>
/// Starts Playback of the given file
/// </summary>
/// <param name="filePath"></param>
/// <returns></returns>
public override bool Play(string filePath)
{
if (!_Initialized)
{
return false;
}
int stream = GetCurrentStream();
bool doFade = false;
bool result = true;
Speed = 1; // Set playback Speed to normal speed
try
{
if (filePath.ToLower().CompareTo(FilePath.ToLower()) == 0 && stream != 0)
{
// Selected file is equal to current stream
if (_State == PlayState.Paused)
{
// Resume paused stream
if (_SoftStop)
{
Bass.BASS_ChannelSlideAttribute(stream, BASSAttribute.BASS_ATTRIB_VOL, 1, 500);
}
else
{
Bass.BASS_ChannelSetAttribute(stream, BASSAttribute.BASS_ATTRIB_VOL, 1);
}
result = Bass.BASS_Start();
if (_useASIO)
{
result = BassAsio.BASS_ASIO_Start(0);
}
if (result)
{
_State = PlayState.Playing;
if (PlaybackStateChanged != null)
{
PlaybackStateChanged(this, PlayState.Paused, _State);
}
}
return result;
}
}
else
{
// Cue support
cueTrackStartPos = 0;
cueTrackEndPos = 0;
if (CueUtil.isCueFakeTrackFile(filePath))
{
Log.Debug("BASS: Playing CUE Track: {0}", filePath);
currentCueFakeTrackFileName = filePath;
CueFakeTrack cueFakeTrack = CueUtil.parseCueFakeTrackFileName(filePath);
if (!cueFakeTrack.CueFileName.Equals(currentCueFileName))
{
// New CUE. Update chached cue.
currentCueSheet = new CueSheet(cueFakeTrack.CueFileName);
currentCueFileName = cueFakeTrack.CueFileName;
}
// Get track start position
Track track = currentCueSheet.Tracks[cueFakeTrack.TrackNumber - currentCueSheet.Tracks[0].TrackNumber];
Index index = track.Indices[0];
cueTrackStartPos = CueUtil.cueIndexToFloatTime(index);
// If single audio file and is not last track, set track end position.
if (currentCueSheet.Tracks[currentCueSheet.Tracks.Length - 1].TrackNumber > track.TrackNumber)
{
Track nextTrack =
currentCueSheet.Tracks[cueFakeTrack.TrackNumber - currentCueSheet.Tracks[0].TrackNumber + 1];
if (nextTrack.DataFile.Filename.Equals(track.DataFile.Filename))
{
Index nindex = nextTrack.Indices[0];
cueTrackEndPos = CueUtil.cueIndexToFloatTime(nindex);
}
}
// If audio file is not changed, just set new start/end position and reset pause
string audioFilePath = System.IO.Path.GetDirectoryName(cueFakeTrack.CueFileName) +
System.IO.Path.DirectorySeparatorChar + track.DataFile.Filename;
if (audioFilePath.CompareTo(FilePath) == 0 /* && StreamIsPlaying(stream)*/)
{
setCueTrackEndPosition(stream);
return true;
}
filePath = audioFilePath;
}
else
{
currentCueFileName = null;
currentCueSheet = null;
}
}
if (stream != 0 && StreamIsPlaying(stream))
{
int oldStream = stream;
double oldStreamDuration = GetTotalStreamSeconds(oldStream);
double oldStreamElapsedSeconds = GetStreamElapsedTime(oldStream);
double crossFadeSeconds = (double)_CrossFadeIntervalMS;
if (crossFadeSeconds > 0)
crossFadeSeconds = crossFadeSeconds / 1000.0;
if ((oldStreamDuration - (oldStreamElapsedSeconds + crossFadeSeconds) > -1))
{
FadeOutStop(oldStream);
}
else
{
Bass.BASS_ChannelStop(oldStream);
}
doFade = true;
stream = GetNextStream();
if (stream != 0 || StreamIsPlaying(stream))
{
FreeStream(stream);
}
}
if (stream != 0)
{
if (!Stopped) // Check if stopped already to avoid that Stop() is called two or three times
{
Stop();
}
FreeStream(stream);
}
_State = PlayState.Init;
// Make sure Bass is ready to begin playing again
Bass.BASS_Start();
float crossOverSeconds = 0;
if (_CrossFadeIntervalMS > 0)
{
crossOverSeconds = (float)_CrossFadeIntervalMS / 1000f;
}
if (filePath != string.Empty)
{
// Turn on parsing of ASX files
Bass.BASS_SetConfig(BASSConfig.BASS_CONFIG_NET_PLAYLIST, 2);
// We need different flags for standard BASS and ASIO / Mixing
BASSFlag streamFlags;
if (_useASIO || _Mixing)
{
streamFlags = BASSFlag.BASS_STREAM_DECODE | BASSFlag.BASS_SAMPLE_FLOAT;
// Don't use the BASS_STREAM_AUTOFREE flag on a decoding channel. will produce a BASS_ERROR_NOTAVAIL
}
else
{
streamFlags = BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_AUTOFREE;
}
FilePath = filePath;
// create the stream
_isCDDAFile = false;
_isRadio = false;
_isLastFMRadio = false;
if (Util.Utils.IsCDDA(filePath))
{
_isCDDAFile = true;
// StreamCreateFile causes problems with Multisession disks, so use StreamCreate with driveindex and track index
int driveindex = _cdDriveLetters.IndexOf(filePath.Substring(0, 1));
int tracknum = Convert.ToInt16(filePath.Substring(filePath.IndexOf(".cda") - 2, 2));
stream = BassCd.BASS_CD_StreamCreate(driveindex, tracknum - 1, streamFlags);
if (stream == 0)
Log.Error("BASS: CD: {0}.", Enum.GetName(typeof (BASSError), Bass.BASS_ErrorGetCode()));
}
else if (filePath.ToLower().Contains(@"http://") || filePath.ToLower().Contains(@"https://") ||
filePath.ToLower().StartsWith("mms") || filePath.ToLower().StartsWith("rtsp"))
{
// We're playing Internet Radio Stream
_isLastFMRadio = Util.Utils.IsLastFMStream(filePath);
if (!_isLastFMRadio)
{
// We're playing Internet Radio Stream, but not LastFM
_isRadio = true;
}
stream = Bass.BASS_StreamCreateURL(filePath, 0, streamFlags, null, IntPtr.Zero);
if (stream != 0)
{
// Get the Tags and set the Meta Tag SyncProc
_tagInfo = new TAG_INFO(filePath);
SetStreamTags(stream);
if (BassTags.BASS_TAG_GetFromURL(stream, _tagInfo))
{
GetMetaTags();
}
Bass.BASS_ChannelSetSync(stream, BASSSync.BASS_SYNC_META, 0, MetaTagSyncProcDelegate, IntPtr.Zero);
}
Log.Debug("BASSAudio: Webstream found - trying to fetch stream {0}", Convert.ToString(stream));
}
else if (IsMODFile(filePath))
{
// Load a Mod file
stream = Bass.BASS_MusicLoad(filePath, 0, 0,
BASSFlag.BASS_SAMPLE_SOFTWARE | BASSFlag.BASS_SAMPLE_FLOAT |
BASSFlag.BASS_MUSIC_AUTOFREE | BASSFlag.BASS_MUSIC_PRESCAN |
BASSFlag.BASS_MUSIC_RAMP, 0);
}
else
{
// Create a Standard Stream
stream = Bass.BASS_StreamCreateFile(filePath, 0, 0, streamFlags);
}
// Is Mixing / ASIO enabled, then we create a mixer channel and assign the stream to the mixer
if ((_Mixing || _useASIO) && stream != 0)
{
// Do an upmix of the stereo according to the matrix.
// Now Plugin the stream to the mixer and set the mixing matrix
BassMix.BASS_Mixer_StreamAddChannel(_mixer, stream,
BASSFlag.BASS_MIXER_MATRIX | BASSFlag.BASS_STREAM_AUTOFREE |
BASSFlag.BASS_MIXER_NORAMPIN | BASSFlag.BASS_MIXER_BUFFER);
BassMix.BASS_Mixer_ChannelSetMatrix(stream, _MixingMatrix);
}
Streams[CurrentStreamIndex] = stream;
if (stream != 0)
{
// When we have a MIDI file, we need to assign the sound banks to the stream
if (IsMidiFile(filePath) && soundFonts != null)
{
BassMidi.BASS_MIDI_StreamSetFonts(stream, soundFonts, soundFonts.Length);
}
StreamEventSyncHandles[CurrentStreamIndex] = RegisterPlaybackEvents(stream, CurrentStreamIndex);
if (doFade && CrossFadeIntervalMS > 0)
{
_CrossFading = true;
// Reduce the stream volume to zero so we can fade it in...
Bass.BASS_ChannelSetAttribute(stream, BASSAttribute.BASS_ATTRIB_VOL, 0);
// Fade in from 0 to 1 over the _CrossFadeIntervalMS duration
Bass.BASS_ChannelSlideAttribute(stream, BASSAttribute.BASS_ATTRIB_VOL, 1, _CrossFadeIntervalMS);
}
// Attach active DSP effects to the Stream
if (_dspActive)
{
// BASS effects
if (_gain != null)
{
_gain.ChannelHandle = stream;
_gain.Start();
}
if (_damp != null)
{
int dampHandle = Bass.BASS_ChannelSetFX(stream, BASSFXType.BASS_FX_BFX_DAMP, _dampPrio);
Bass.BASS_FXSetParameters(dampHandle, _damp);
}
if (_comp != null)
{
int compHandle = Bass.BASS_ChannelSetFX(stream, BASSFXType.BASS_FX_BFX_COMPRESSOR, _compPrio);
Bass.BASS_FXSetParameters(compHandle, _comp);
}
// VST Plugins
foreach (string plugin in _VSTPlugins)
{
int vstHandle = BassVst.BASS_VST_ChannelSetDSP(stream, plugin, BASSVSTDsp.BASS_VST_DEFAULT, 1);
// Copy the parameters of the plugin as loaded on from the settings
int vstParm = _vstHandles[plugin];
BassVst.BASS_VST_SetParamCopyParams(vstParm, vstHandle);
}
// Init Winamp DSP only if we got a winamp plugin actiavtes
int waDspPlugin = 0;
if (DSP.Settings.Instance.WinAmpPlugins.Count > 0 && !_waDspInitialised)
{
BassWaDsp.BASS_WADSP_Init(GUIGraphicsContext.ActiveForm);
_waDspInitialised = true;
foreach (WinAmpPlugin plugins in DSP.Settings.Instance.WinAmpPlugins)
{
waDspPlugin = BassWaDsp.BASS_WADSP_Load(plugins.PluginDll, 5, 5, 100, 100, null);
if (waDspPlugin > 0)
{
_waDspPlugins[plugins.PluginDll] = waDspPlugin;
BassWaDsp.BASS_WADSP_Start(waDspPlugin, 0, 0);
}
else
{
Log.Debug("Couldn't load WinAmp Plugin {0}. Error code: {1}", plugins.PluginDll,
Enum.GetName(typeof (BASSError), Bass.BASS_ErrorGetCode()));
}
}
}
foreach (int waPluginHandle in _waDspPlugins.Values)
{
BassWaDsp.BASS_WADSP_ChannelSetDSP(waPluginHandle, stream, 1);
}
}
}
else
{
Log.Error("BASS: Unable to create Stream for {0}. Reason: {1}.", filePath,
Enum.GetName(typeof (BASSError), Bass.BASS_ErrorGetCode()));
}
bool playbackStarted = false;
if (_Mixing)
{
if (Bass.BASS_ChannelIsActive(_mixer) == BASSActive.BASS_ACTIVE_PLAYING)
{
setCueTrackEndPosition(stream);
playbackStarted = true;
}
else
{
playbackStarted = Bass.BASS_ChannelPlay(_mixer, false);
setCueTrackEndPosition(stream);
}
}
else if (_useASIO)
{
// Get some information about the stream
BASS_CHANNELINFO info = new BASS_CHANNELINFO();
Bass.BASS_ChannelGetInfo(stream, info);
// In order to provide data for visualisation we need to clone the stream
_streamcopy = new StreamCopy();
_streamcopy.ChannelHandle = stream;
_streamcopy.StreamFlags = BASSFlag.BASS_STREAM_DECODE | BASSFlag.BASS_SAMPLE_FLOAT;
// decode the channel, so that we have a Streamcopy
_asioHandler.Pan = _asioBalance;
_asioHandler.Volume = (float)_StreamVolume / 100f;
// Set the Sample Rate from the stream
_asioHandler.SampleRate = (double)info.freq;
// try to set the device rate too (saves resampling)
BassAsio.BASS_ASIO_SetRate((double)info.freq);
try
{
_streamcopy.Start(); // start the cloned stream
}
catch (Exception)
{
Log.Error("Captured an error on StreamCopy start");
}
if (BassAsio.BASS_ASIO_IsStarted())
{
setCueTrackEndPosition(stream);
playbackStarted = true;
}
else
{
BassAsio.BASS_ASIO_Stop();
playbackStarted = BassAsio.BASS_ASIO_Start(0);
setCueTrackEndPosition(stream);
}
}
else
{
setCueTrackEndPosition(stream);
playbackStarted = Bass.BASS_ChannelPlay(stream, false);
}
if (stream != 0 && playbackStarted)
{
Log.Info("BASS: playback started");
GUIMessage msg = new GUIMessage(GUIMessage.MessageType.GUI_MSG_PLAYBACK_STARTED, 0, 0, 0, 0, 0, null);
msg.Label = FilePath;
GUIWindowManager.SendThreadMessage(msg);
NotifyPlaying = true;
NeedUpdate = true;
_IsFullScreen = GUIGraphicsContext.IsFullScreenVideo;
_VideoPositionX = GUIGraphicsContext.VideoWindow.Left;
_VideoPositionY = GUIGraphicsContext.VideoWindow.Top;
_VideoWidth = GUIGraphicsContext.VideoWindow.Width;
_VideoHeight = GUIGraphicsContext.VideoWindow.Height;
// Re-Add the Viswindow to the Mainform Control (It got removed on a manual Stop)
SetVisualizationWindow();
SetVideoWindow();
PlayState oldState = _State;
_State = PlayState.Playing;
if (oldState != _State && PlaybackStateChanged != null)
{
PlaybackStateChanged(this, oldState, _State);
}
if (PlaybackStart != null)
{
PlaybackStart(this, GetTotalStreamSeconds(stream));
}
}
else
{
Log.Error("BASS: Unable to play {0}. Reason: {1}.", filePath,
Enum.GetName(typeof (BASSError), Bass.BASS_ErrorGetCode()));
// Release all of the sync proc handles
if (StreamEventSyncHandles[CurrentStreamIndex] != null)
{
UnregisterPlaybackEvents(stream, StreamEventSyncHandles[CurrentStreamIndex]);
}
result = false;
}
}
}
catch (Exception ex)
{
result = false;
Log.Error("BASS: Play caused an exception: {0}.", ex);
}
return result;
}
/// <summary>Initialize the base ASIO streams, and actually start ASIO running.</summary>
/// <remarks>[MainThread]</remarks>
internal void StartASIO()
{
// not playing anything via BASS, so don't need an update thread
CheckError(Bass.BASS_SetConfig(BASSConfig.BASS_CONFIG_UPDATEPERIOD, 0));
// setup BASS - "no sound" device but SampleFrequencyHz (default for ASIO)
CheckError(Bass.BASS_Init(0, Clock.TimepointRateHz, BASSInit.BASS_DEVICE_DEFAULT, IntPtr.Zero));
CheckError(BassAsio.BASS_ASIO_Init(AsioDeviceId, BASSASIOInit.BASS_ASIO_THREAD));
CheckError(BassFx.LoadMe());
if (UseVst) {
CheckError(BassVst.LoadMe());
// testing scaffolding; retain for reference
TempFrobBassVst();
}
// register all effects once VST is set up
EffectRegistrar.RegisterAll();
////////////////////// DEVICE SETUP
CheckError(BassAsio.BASS_ASIO_SetDevice(AsioDeviceId));
BASS_ASIO_DEVICEINFO info = new BASS_ASIO_DEVICEINFO();
System.Text.StringBuilder b = new System.Text.StringBuilder();
for (int n = 0; BassAsio.BASS_ASIO_GetDeviceInfo(n, info); n++) {
b.AppendLine("device #" + n + ": " + info.ToString());
}
b.AppendLine("done");
string all = b.ToString();
b.Clear();
for (int chan = 0; chan < 16; chan++) {
BASS_ASIO_CHANNELINFO cinfo = BassAsio.BASS_ASIO_ChannelGetInfo(true, chan);
if (cinfo != null) {
b.AppendLine(cinfo.ToString());
}
cinfo = BassAsio.BASS_ASIO_ChannelGetInfo(false, chan);
if (cinfo != null) {
b.AppendLine(cinfo.ToString());
}
}
all = b.ToString();
CheckError(BassAsio.BASS_ASIO_SetRate(Clock.TimepointRateHz));
BASS_ASIO_INFO asioInfo = BassAsio.BASS_ASIO_GetInfo();
int inputLatency = BassAsio.BASS_ASIO_GetLatency(IsInputChannel);
int outputLatency = BassAsio.BASS_ASIO_GetLatency(IsOutputChannel);
m_asioBufferPreferredSize = 128; // B4CKIN: asioInfo.bufpref;
////////////////////// OUTPUT SETUP
// converted away from BassAsioHandler, to enable better viewing of intermediate data
// (and full control over API use, allocation, etc.)
m_mixerHStream = (StreamHandle)BassMix.BASS_Mixer_StreamCreate(
Clock.TimepointRateHz,
StereoChannels,
BASSFlag.BASS_MIXER_RESUME | BASSFlag.BASS_MIXER_NONSTOP | BASSFlag.BASS_STREAM_DECODE | BASSFlag.BASS_SAMPLE_FLOAT);
BASS_CHANNELINFO mixerInfo = new BASS_CHANNELINFO();
CheckError(Bass.BASS_ChannelGetInfo((int)m_mixerHStream, mixerInfo));
// connect to ASIO output channel
CheckError(BassAsio.BASS_ASIO_ChannelEnable(IsOutputChannel, AsioOutputChannelId, m_mixerToOutputAsioProc, new IntPtr((int)m_mixerHStream)));
// Join second mixer channel (right stereo channel).
CheckError(BassAsio.BASS_ASIO_ChannelJoin(IsOutputChannel, 1, AsioOutputChannelId));
CheckError(BassAsio.BASS_ASIO_ChannelSetFormat(IsOutputChannel, AsioOutputChannelId, BASSASIOFormat.BASS_ASIO_FORMAT_FLOAT));
CheckError(BassAsio.BASS_ASIO_ChannelSetRate(IsOutputChannel, AsioOutputChannelId, Clock.TimepointRateHz));
////////////////////// INPUT SETUP
CheckError(BassAsio.BASS_ASIO_SetDevice(HolofunkBassAsio.AsioDeviceId));
m_input0 = new HolofunkBassAsioInput(this, 0, m_bass.AudioAllocator);
m_input1 = new HolofunkBassAsioInput(this, 1, m_bass.AudioAllocator);
////////////////////// ASIO LAUNCH
CheckError(BassAsio.BASS_ASIO_Start(m_asioBufferPreferredSize));
// get the info again, see if latency has changed
asioInfo = BassAsio.BASS_ASIO_GetInfo();
inputLatency = BassAsio.BASS_ASIO_GetLatency(IsInputChannel);
outputLatency = BassAsio.BASS_ASIO_GetLatency(IsOutputChannel);
}
public bool OpenFile(string path, long offset = 0, long length = 0)
{
Stop();
if (ActiveStreamHandle != 0) {
ClearRepeatRange();
ChannelPosition = 0;
Bass.BASS_StreamFree(ActiveStreamHandle);
Bass.BASS_StreamFree(decodedStream);
}
if (System.IO.File.Exists(path)) {
// Create Stream
decodedStream = Bass.BASS_StreamCreateFile(path, offset, length, BASSFlag.BASS_SAMPLE_MONO |
BASSFlag.BASS_STREAM_PRESCAN | BASSFlag.BASS_STREAM_DECODE);
FileStreamHandle = ActiveStreamHandle = BassFx.BASS_FX_TempoCreate(decodedStream, BASSFlag.BASS_FX_FREESOURCE);
ChannelLength = Bass.BASS_ChannelBytes2Seconds(FileStreamHandle, Bass.BASS_ChannelGetLength(FileStreamHandle, 0));
FileTag = TagLib.File.Create(path);
GenerateWaveformData(path);
if (ActiveStreamHandle != 0) {
// Obtain the sample rate of the stream
BASS_CHANNELINFO info = new BASS_CHANNELINFO();
Bass.BASS_ChannelGetInfo(ActiveStreamHandle, info);
sampleFrequency = info.freq;
// Set the stream to call Stop() when it ends.
int syncHandle = Bass.BASS_ChannelSetSync(ActiveStreamHandle,
BASSSync.BASS_SYNC_END,
0,
endTrackSyncProc,
IntPtr.Zero);
if (syncHandle == 0)
throw new ArgumentException("Error establishing End Sync on file stream.", "path");
CanPlay = true;
filePath = path;
return true;
} else {
ActiveStreamHandle = 0;
FileTag = null;
CanPlay = false;
}
}
return false;
}
protected void NC_OnMediaPacket(object sender, TimeSpan timeStamp, byte[] data)
{
NetStreamHelper netStreamHelper = FindNetStreamHelper(sender as NetStream);
if (netStreamHelper != null)
{
/*
* Test code to check for byte perfect copy
*
private System.IO.FileStream _FileStream = null; // put this in the class
*
if (netStreamHelper.Item.MediaFile == "JK142176-0002")
{
if (_FileStream == null)
{
Console.WriteLine("!!!!!WRITING!!!!!!!!");
_FileStream = new System.IO.FileStream(netStreamHelper.Item.MediaFile + ".MP3", System.IO.FileMode.Create, System.IO.FileAccess.Write);
}
_FileStream.Write(data, 0, data.Length);
}
else if (_FileStream != null)
{
Console.WriteLine("!!!!!CLOSEING!!!!!!!!");
_FileStream.Close();
_FileStream = null;
}
*/
// Store data in buffer
if (netStreamHelper.Buffer != null)
{
netStreamHelper.Buffer.Write(data);
// When index > 0 we are buffering but not playing. Make sure we don't buffer to much data
if (netStreamHelper.IndexNumberInList > 0 && !netStreamHelper.NetStream.PauseIsActive)
{
// Prebuffer
// 15 seconds of data? (default for "ContentBufferTime")
//if (netStreamHelper.Buffer.UsedBytes >= (128 * 1024 * 8 * 10))
if (netStreamHelper.Buffer.UsedBytes >= (MP3_BITRATE * 8 * PREBUFFERTIME_IN_SECOND))
{
// pause stream! (otherwise stream will take to much memory)
netStreamHelper.NetStream.Pause(true);
DoEvent_MP_OnPreBuffer(OnPreBuffer, this, (MediaItem)netStreamHelper.Item.Clone(), PreBufferState.PrebufferingReady);
}
}
}
//Console.Write("\r" + netStreamHelper.Item.MediaFile + " ; UsedBytes=" + netStreamHelper.Buffer.UsedBytes.ToString());
// When no bass channel has been created create it (but there must be enough data in the buffer!)
if (netStreamHelper.BassHandle == 0 && netStreamHelper.Buffer != null && netStreamHelper.Buffer.UsedBytes >= BASS_MIN_INITIAL_FILLED_BUFFER)
{
// bass needs for mp3 atleast 4000 bytes before is can play
// Startup new bassChannel we have enough data in the buffer to start playing
netStreamHelper.BassHandle = Bass.BASS_StreamCreateFileUser(BASSStreamSystem.STREAMFILE_BUFFERPUSH, BASSFlag.BASS_DEFAULT, bassFileProcs, GCHandle.ToIntPtr((GCHandle)gcHandle));
if (netStreamHelper.BassHandle != 0)
{
// Set volume for this channel
float volume = 100.0f;
lock (lockVAR)
{
volume = Convert.ToSingle(bassVolume) / 100.0f;
}
Bass.BASS_ChannelSetAttribute(netStreamHelper.BassHandle, BASSAttribute.BASS_ATTRIB_VOL, volume);
BASS_CHANNELINFO info = new BASS_CHANNELINFO();
Bass.BASS_ChannelGetInfo(netStreamHelper.BassHandle, info);
netStreamHelper.SampleRate = info.freq;
netStreamHelper.Channels = info.chans;
netStreamHelper.SampleSize = 16;
if ((info.flags & BASSFlag.BASS_SAMPLE_FLOAT) != 0) // 32-bit floating-point
{
netStreamHelper.SampleSize = 32;
}
else if ((info.flags & BASSFlag.BASS_SAMPLE_8BITS) != 0) // 8-bit
{
netStreamHelper.SampleSize = 8;
}
// make sure event funcs are called
Bass.BASS_ChannelSetSync(netStreamHelper.BassHandle, BASSSync.BASS_SYNC_STALL, 0, bassStalledSync, GCHandle.ToIntPtr((GCHandle)gcHandle));
Bass.BASS_ChannelSetSync(netStreamHelper.BassHandle, BASSSync.BASS_SYNC_END, 0, bassEndSync, GCHandle.ToIntPtr((GCHandle)gcHandle));
// Make sure the bass buffer is filled with enough data to start playing uninterrupted
// lock to make sure "netStreams" is protected (we're here on the thread of NetConnection not of MediaPlayer)
lock (lockVAR)
{
MPThread_FillBassAudioBuffer();
}
}
}
// -------------------------------------------------------------------------------------------------------------
// Startup playing the sound if it is needed
StartPlayingAudioChannel();
}
}
public void PlayStream()
{
if(BassInit == false)
{
Console.WriteLine("PlayBarBASSVM: PlayStream: Bass not initialized");
return;
}
if(SelectedSong==null)
{
Console.WriteLine("PlayBarBASSVM: PlayStream: No selected song");
return;
}
if(!System.IO.File.Exists(SelectedSong.FilePath))
{
Console.WriteLine("PlayBarBASSVM: PlayStream: Songpath doesn't exists - file not found");
return;
}
//indien een vorig lied nog aan het spelen is, stream vrijmaken voor volgend lied
if(Bass.BASS_ChannelIsActive(_stream) == BASSActive.BASS_ACTIVE_PLAYING)
Bass.BASS_StreamFree(_stream);
_stream = Bass.BASS_StreamCreateFile(SelectedSong.FilePath, 0, 0, BASSFlag.BASS_DEFAULT); /* BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_PRESCAN */
if (_stream != 0)
{
Bass.BASS_ChannelPlay(_stream, false); // play the channel
//bij iedere nieuwe stream moet de volume herzet worden, reset standaard
float volume = (float)_sldVolume / 100;
if (!Bass.BASS_ChannelSetAttribute(_stream, BASSAttribute.BASS_ATTRIB_VOL, volume))
Console.WriteLine("PlayBarBASSVM: Error trying to set volume: {0}", Bass.BASS_ErrorGetCode().ToString());
Messenger.Default.Send(new NotificationMessage<Song>(SelectedSong, MVVMMessages.Messages.MUSIC_NEW_SONG)); //bericht zenden dat nieuw lied speelt voor titlebar
_updateTimer.Start();
//channelinfo
BASS_CHANNELINFO info = new BASS_CHANNELINFO();
Bass.BASS_ChannelGetInfo(_stream, info);
//filetags (id3v1 v2 ...)
TAG_INFO tagInfo = new TAG_INFO(SelectedSong.FilePath);
if (BassTags.BASS_TAG_GetFromFile(_stream, tagInfo))
{
Console.WriteLine("PlayBarBASSVM: PlayStream: Playing:{0} - {1}", tagInfo.albumartist, tagInfo.title);
}
this.BtnPauseEnabled = true; this.BtnStopEnabled = true; this.BtnPlayEnabled = false;
//sends event when track is finished om volgende track af te spelen
Bass.BASS_ChannelSetSync(_stream, BASSSync.BASS_SYNC_END | BASSSync.BASS_SYNC_MIXTIME,0, _mySync, IntPtr.Zero);
}
else
{
Console.WriteLine("PlayBarBASSVM: PlayStream: Stream error: {0}", Bass.BASS_ErrorGetCode()); // error
return;
}
}
/// <summary>
/// 播放当前流
/// </summary>
private void PlayCurrentStream()
{
if (this.ActiveStreamHandle != 0 && Bass.BASS_ChannelPlay(this.ActiveStreamHandle, false))
{
BASS_CHANNELINFO info = new Un4seen.Bass.BASS_CHANNELINFO();
Bass.BASS_ChannelGetInfo(this.ActiveStreamHandle, info);
}
#if DEBUG
else
{
Debug.WriteLine("Error={0}", Un4seen.Bass.Bass.BASS_ErrorGetCode());
}
#endif
}
private void FileAction(object sender, EventArgs e)
{
if (!this.isAllreadyClicked)
{
this.graphics.ToggleFullScreen();
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.Filter = "All Audio Files |*.mp3;*.wma;*.aiff;*.ogg;*.wav;*.mp4;*.aac;*.flac|MPEG-1 Audio Layer 3 (*.mp3)|*.mp3|Windows Media Audio (.wma)|*.wma|Audio Interchange File Format (*.aiff)|*.aiff|OGG Vorbis (*.ogg)|*.ogg|Audio for Windows (*.wav)|*.wav|AAC/MP4 (*.aac,*.mp4)|*.aac;*.mp4|Free Lossless Audio Codec (*.flac) |*.flac";
openFileDialog.FileName = this.track;
if (DialogResult.OK == openFileDialog.ShowDialog())
{
if (File.Exists(openFileDialog.FileName))
{
this.track = openFileDialog.FileName;
////load the desired track to the stream
if (this.track != String.Empty)
{
Bass.BASS_ChannelStop(this.streamTempo);
Bass.BASS_StreamFree(this.streamTempo);
Bass.BASS_StreamFree(this.streamDirection);
Bass.BASS_StreamFree(this.stream);
this.framePos = 0;
this.ResetLoopOut();
this.ResetLoopIn();
this.scratchAngle = 0;
this.trackinfo = new FileInfo(this.track);
if (this.trackinfo.Extension.ToLower() == ".wma")
{
this.stream = BassWma.BASS_WMA_StreamCreateFile(this.track, 0, 0, BASSFlag.BASS_STREAM_DECODE | BASSFlag.BASS_STREAM_PRESCAN);
}
else if (this.trackinfo.Extension.ToLower() == ".mp4")
{
this.stream = BassAac.BASS_MP4_StreamCreateFile(this.track, 0, 0, BASSFlag.BASS_STREAM_DECODE | BASSFlag.BASS_STREAM_PRESCAN);
}
else if (this.trackinfo.Extension.ToLower() == ".aac")
{
this.stream = BassAac.BASS_AAC_StreamCreateFile(this.track, 0, 0, BASSFlag.BASS_STREAM_DECODE | BASSFlag.BASS_STREAM_PRESCAN);
}
else if (this.trackinfo.Extension.ToLower() == ".flac")
{
this.stream = BassFlac.BASS_FLAC_StreamCreateFile(this.track, 0, 0, BASSFlag.BASS_STREAM_DECODE | BASSFlag.BASS_STREAM_PRESCAN);
}
else
{
this.stream = Bass.BASS_StreamCreateFile(this.track, 0, 0, BASSFlag.BASS_STREAM_DECODE | BASSFlag.BASS_STREAM_PRESCAN);
}
this.streamDirection = BassFx.BASS_FX_ReverseCreate(this.stream, 1, BASSFlag.BASS_STREAM_DECODE);
this.streamTempo = BassFx.BASS_FX_TempoCreate(this.streamDirection, BASSFlag.BASS_FX_FREESOURCE | BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_SAMPLE_LOOP);
Bass.BASS_ChannelSetAttribute(this.streamDirection, BASSAttribute.BASS_ATTRIB_REVERSE_DIR, (float)BASSFXReverse.BASS_FX_RVS_FORWARD);
Bass.BASS_SetConfig(BASSConfig.BASS_CONFIG_BUFFER, 40);
Bass.BASS_SetConfig(BASSConfig.BASS_CONFIG_UPDATEPERIOD, 5);
////we need to retrieve the samplerate of the track
////because we change it during scratching and afterwards we set it back
////not every track has a samplerate of 44100
this.info = Bass.BASS_ChannelGetInfo(this.streamTempo);
this.currentFreq = this.info.freq;
////get the waveform
this.GetWave();
this.len = this.wf.Wave.data.Length;
int frames_per_picture = (int)Math.Ceiling((double)this.len / (double)this.totalTextures);
double duration = Bass.BASS_ChannelBytes2Seconds(this.streamTempo, Bass.BASS_ChannelGetLength(this.streamTempo)) * 1000;
this.state.Play = true;
}
else
{
this.track = String.Empty;
}
}
}
this.graphics.ToggleFullScreen();
}
}
/// <summary>
/// 打开文件
/// </summary>
/// <param name="filename"></param>
public void OpenFile(string filename)
{
this.CurrentSoundUrl = filename;
this.Stop();
int handle = Un4seen.Bass.Bass.BASS_StreamCreateFile(filename, 0, 0, Un4seen.Bass.BASSFlag.BASS_DEFAULT);
if (handle != 0)
{
this.ActiveStreamHandle = handle;
ChannelLength = Un4seen.Bass.Bass.BASS_ChannelBytes2Seconds(ActiveStreamHandle, Un4seen.Bass.Bass.BASS_ChannelGetLength(ActiveStreamHandle, 0));
Un4seen.Bass.BASS_CHANNELINFO info = new Un4seen.Bass.BASS_CHANNELINFO();
Un4seen.Bass.Bass.BASS_ChannelGetInfo(ActiveStreamHandle, info);
this.SampleFrequency = info.freq;
this.TotalTime = TimeSpan.FromSeconds(Bass.BASS_ChannelBytes2Seconds(this.ActiveStreamHandle, Bass.BASS_ChannelGetLength(ActiveStreamHandle, 0)));
int syncHandle = Un4seen.Bass.Bass.BASS_ChannelSetSync(ActiveStreamHandle,
Un4seen.Bass.BASSSync.BASS_SYNC_END,
0,
this.EndTrackSyncProc,
IntPtr.Zero);
if (syncHandle == 0)
throw new ArgumentException("Error establishing End Sync on file stream.", "path");
//this.GenerateWaveformData(filename);
this.CanPlay = true;
this.Process = 1;
this.Play();
}
}
//Lejátszás gomb, Click event
private void playlist_play_Click(object sender, EventArgs e)
{
//Ha már elindult a dal csak Pause-olva vagyunk
if (paused)
{
paused = false;
_updateTimer.Start();
Bass.BASS_ChannelPlay(_stream, false);
Bass.BASS_ChannelSlideAttribute(_stream, BASSAttribute.BASS_ATTRIB_VOL, 1, 300);
if (this.InvokeRequired) this.Invoke((MethodInvoker)delegate
{
playlist_play.Visible = false; playlist_pause.Visible = true;
});
else
{
playlist_play.Visible = false; playlist_pause.Visible = true;
}
}
else
{
//Ha lejátszás folyamatban van, akkor azt kilőjjük
if (0 != _stream || Bass.BASS_ChannelIsActive(_stream) != BASSActive.BASS_ACTIVE_STOPPED)
{
playlist_stop_Click(null, EventArgs.Empty);
}
//Van kijelölve egyáltalán valami lejátszanivaló?
if (0 != playlist.SelectedRows.Count)
{
// create the stream
_stream = Bass.BASS_StreamCreateFile(trackList[playlist.SelectedRows[0].Index].filename, 0, 0, BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_PRESCAN);
if (0 != _stream && Bass.BASS_ChannelPlay(_stream, false))
{
Bass.BASS_ChannelSetAttribute(_stream, BASSAttribute.BASS_ATTRIB_VOL, volumeBar.Value / 100F); //Induljunk a hangerőszabályozó hangerejével
Bass.BASS_ChannelSetSync(_stream, BASSSync.BASS_SYNC_END | BASSSync.BASS_SYNC_ONETIME, 0, nexttrack, IntPtr.Zero); //Következő számra ugrás sync
_updateTimer.Start();
// get some channel info
BASS_CHANNELINFO info = new BASS_CHANNELINFO();
Bass.BASS_ChannelGetInfo(_stream, info);
if (this.InvokeRequired) this.Invoke((MethodInvoker)delegate
{
playlist_play.Visible = false; playlist_pause.Visible = true;
});
else
{
playlist_play.Visible = false; playlist_pause.Visible = true;
}
}
else
{
Console.WriteLine("Error={0}", Bass.BASS_ErrorGetCode());
}
}
}
}
public bool SliceSample()
{
Stop();
int stream = Bass.BASS_StreamCreateFile(filePath, 0, 0, BASSFlag.BASS_SAMPLE_MONO | BASSFlag.BASS_STREAM_DECODE);
long tLength = Bass.BASS_ChannelGetLength(stream);
double seconds = (SelectionEnd - SelectionBegin).TotalSeconds;
/* byte lengths */
int boffset = (int)Bass.BASS_ChannelSeconds2Bytes(stream, SelectionBegin.TotalSeconds);
int blength = (int)Bass.BASS_ChannelSeconds2Bytes(stream, seconds);
Bass.BASS_ChannelSetPosition(stream, boffset, BASSMode.BASS_POS_BYTES);
BASS_CHANNELINFO info = new BASS_CHANNELINFO();
Bass.BASS_ChannelGetInfo(stream, info);
// create the sample
short[] data = new short[blength]; //, putdata = new byte[blength];
Bass.BASS_ChannelGetData(stream, data, blength);
string f = filePath.Substring(0, filePath.LastIndexOf("\\") + 1) + "temp.wav";
WaveWriter w = new WaveWriter(f, stream, 16, true);
w.Write(data, blength);
w.Close();
return OpenFile(f);
}
/// <summary>
/// Set the media type based on values from BASS.DLL
/// </summary>
/// <param name="psc">The IGenericSampleConfig onto which we set the mediatype</param>
public override void SetMediaType(IGenericSampleConfig psc)
{
int lFrequency = 0;
int lVolume = 0;
int lPan = 0;
WaveFormatEx w = new WaveFormatEx();
BASS_CHANNELINFO lInfo = new BASS_CHANNELINFO();
Bass.BASS_ChannelGetInfo(m_fChan, lInfo);
if ((lInfo.flags & (int)BASSStream.BASS_SAMPLE_8BITS) == (int)BASSStream.BASS_SAMPLE_8BITS)
{
w.wBitsPerSample = 8;
}
else
{
w.wBitsPerSample = 16;
}
Bass.BASS_ChannelGetAttributes(m_fChan, ref lFrequency, ref lVolume, ref lPan);
w.cbSize = (short)Marshal.SizeOf(typeof(WaveFormatEx));
w.nChannels = (short)lInfo.chans;
w.nSamplesPerSec = lFrequency;
w.wFormatTag = 1;
w.nAvgBytesPerSec = w.nSamplesPerSec * w.nBlockAlign;
m_BytesPerSample = (short)(w.nChannels * (w.wBitsPerSample / 8));
m_Frequency = lFrequency;
m_Channels = lInfo.chans;
w.nBlockAlign = (short)m_BytesPerSample;
w.nAvgBytesPerSec = w.nSamplesPerSec * w.nBlockAlign;
AMMediaType amt = new AMMediaType();
amt.majorType = MediaType.Audio;
amt.subType = MediaSubType.PCM;
amt.formatType = FormatType.WaveEx;
amt.formatPtr = Marshal.AllocCoTaskMem(w.cbSize);
amt.formatSize = w.cbSize;
Marshal.StructureToPtr(w, amt.formatPtr, false);
int hr = psc.SetMediaTypeEx(amt, BUFSIZE);
DsError.ThrowExceptionForHR(hr);
DsUtils.FreeAMMediaType(amt);
}
/// <summary>
/// 打开网络地址
/// </summary>
/// <param name="url">URL地址</param>
public void OpenUrlAsync(string url)
{
openningFile = url;
//Debug.WriteLine("已调用BassEngine.OpenUrlAsync()");
Stop();
pendingOperation = PendingOperation.None;
onlineFileWorker = new Thread(new ThreadStart(() =>
{
int handle = Un4seen.Bass.Bass.BASS_StreamCreateURL(url, 0, Un4seen.Bass.BASSFlag.BASS_DEFAULT, null, IntPtr.Zero);
Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
if (handle != 0)
{
if (openningFile == url) //该文件为正在打开的文件
{
ActiveStreamHandle = handle;
ChannelLength = TimeSpan.FromSeconds(Un4seen.Bass.Bass.BASS_ChannelBytes2Seconds(ActiveStreamHandle, Un4seen.Bass.Bass.BASS_ChannelGetLength(ActiveStreamHandle, 0)));
Un4seen.Bass.BASS_CHANNELINFO info = new Un4seen.Bass.BASS_CHANNELINFO();
Un4seen.Bass.Bass.BASS_ChannelGetInfo(ActiveStreamHandle, info);
sampleFrequency = info.freq;
int syncHandle = Un4seen.Bass.Bass.BASS_ChannelSetSync(ActiveStreamHandle,
Un4seen.Bass.BASSSync.BASS_SYNC_END,
0,
endTrackSyncProc,
IntPtr.Zero);
if (syncHandle == 0)
{
throw new ArgumentException("Error establishing End Sync on file stream.", "path");
}
CanPlay = true;
RaiseOpenSucceededEvent();
switch (pendingOperation)
{
case PendingOperation.None:
break;
case PendingOperation.Play:
Play();
break;
case PendingOperation.Pause:
Pause();
break;
default:
break;
}
}
else //该文件不是正在打开的文件（即文件已过时，可能的原因是UI线程较忙，调用onlineFileWorker.Abort()时BeginInvoke的内容已提交，但还未执行）
{
if (!Un4seen.Bass.Bass.BASS_StreamFree(handle))
{
Debug.WriteLine("BASS_StreamFree失败：" + Un4seen.Bass.Bass.BASS_ErrorGetCode());
}
//Debug.WriteLine("已调用BASS_StreamFree()");
}
}
else
{
Debug.WriteLine(Un4seen.Bass.Bass.BASS_ErrorGetCode());
RaiseOpenFailedEvent();
}
}));
onlineFileWorker = null;
}));
onlineFileWorker.IsBackground = true;
onlineFileWorker.Start();
}
/// <summary>
/// Initializes a new instance.
/// </summary>
private void Initialize()
{
_info = Bass.BASS_ChannelGetInfo(_handle);
Log.Debug("Stream type: {0}", _info.ctype);
if (_info.ctype != BASSChannelType.BASS_CTYPE_STREAM &&
_info.ctype != BASSChannelType.BASS_CTYPE_STREAM_MIXER)
{
Log.Info("Stream info: {0}", _info.ToString());
UpdateLocalFields();
_streamContentType = GetStreamContentType();
Log.Info("Stream content: {0}", _streamContentType);
}
}
private static IntPtr BASS_TAG_GetIntPtr(int stream, BASS_CHANNELINFO info, out BASSTag tagType)
{
IntPtr zero = IntPtr.Zero;
tagType = BASSTag.BASS_TAG_UNKNOWN;
if ((stream == 0) || (info == null))
{
return zero;
}
BASSChannelType ctype = info.ctype;
if ((ctype & BASSChannelType.BASS_CTYPE_STREAM_WAV) > BASSChannelType.BASS_CTYPE_UNKNOWN)
{
ctype = BASSChannelType.BASS_CTYPE_STREAM_WAV;
}
switch (ctype)
{
case BASSChannelType.BASS_CTYPE_STREAM_WMA:
case BASSChannelType.BASS_CTYPE_STREAM_WMA_MP3:
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_WMA);
tagType = BASSTag.BASS_TAG_WMA;
return zero;
case BASSChannelType.BASS_CTYPE_STREAM_WINAMP:
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_ID3V2);
if (!(zero == IntPtr.Zero))
{
tagType = BASSTag.BASS_TAG_ID3V2;
return zero;
}
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_APE);
if (!(zero == IntPtr.Zero))
{
tagType = BASSTag.BASS_TAG_APE;
return zero;
}
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_OGG);
if (zero == IntPtr.Zero)
{
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_ID3);
if (zero != IntPtr.Zero)
{
tagType = BASSTag.BASS_TAG_ID3;
}
return zero;
}
tagType = BASSTag.BASS_TAG_OGG;
return zero;
case BASSChannelType.BASS_CTYPE_STREAM_OGG:
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_OGG);
if (!(zero == IntPtr.Zero))
{
tagType = BASSTag.BASS_TAG_OGG;
return zero;
}
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_APE);
tagType = BASSTag.BASS_TAG_APE;
return zero;
case BASSChannelType.BASS_CTYPE_STREAM_MP1:
case BASSChannelType.BASS_CTYPE_STREAM_MP2:
case BASSChannelType.BASS_CTYPE_STREAM_MP3:
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_ID3V2);
if (!(zero == IntPtr.Zero))
{
tagType = BASSTag.BASS_TAG_ID3V2;
return zero;
}
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_ID3);
tagType = BASSTag.BASS_TAG_ID3;
return zero;
case BASSChannelType.BASS_CTYPE_STREAM_AIFF:
case BASSChannelType.BASS_CTYPE_STREAM_WAV:
case BASSChannelType.BASS_CTYPE_STREAM_WAV_PCM:
case BASSChannelType.BASS_CTYPE_STREAM_WAV_FLOAT:
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_RIFF_INFO);
if (zero != IntPtr.Zero)
{
tagType = BASSTag.BASS_TAG_RIFF_INFO;
}
return zero;
case BASSChannelType.BASS_CTYPE_MUSIC_MO3:
case BASSChannelType.BASS_CTYPE_MUSIC_MOD:
case BASSChannelType.BASS_CTYPE_MUSIC_MTM:
case BASSChannelType.BASS_CTYPE_MUSIC_S3M:
case BASSChannelType.BASS_CTYPE_MUSIC_XM:
case BASSChannelType.BASS_CTYPE_MUSIC_IT:
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_MUSIC_NAME);
if (zero != IntPtr.Zero)
{
tagType = BASSTag.BASS_TAG_MUSIC_NAME;
}
return zero;
case BASSChannelType.BASS_CTYPE_STREAM_WV:
case BASSChannelType.BASS_CTYPE_STREAM_WV_H:
case BASSChannelType.BASS_CTYPE_STREAM_WV_L:
case BASSChannelType.BASS_CTYPE_STREAM_WV_LH:
case BASSChannelType.BASS_CTYPE_STREAM_OFR:
case BASSChannelType.BASS_CTYPE_STREAM_APE:
case BASSChannelType.BASS_CTYPE_STREAM_FLAC:
case BASSChannelType.BASS_CTYPE_STREAM_SPX:
case BASSChannelType.BASS_CTYPE_STREAM_MPC:
case BASSChannelType.BASS_CTYPE_STREAM_TTA:
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_APE);
if (zero == IntPtr.Zero)
{
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_OGG);
if (zero == IntPtr.Zero)
{
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_ID3V2);
if (zero == IntPtr.Zero)
{
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_ID3);
if (zero != IntPtr.Zero)
{
tagType = BASSTag.BASS_TAG_ID3;
}
return zero;
}
tagType = BASSTag.BASS_TAG_ID3V2;
return zero;
}
tagType = BASSTag.BASS_TAG_OGG;
return zero;
}
tagType = BASSTag.BASS_TAG_APE;
return zero;
case BASSChannelType.BASS_CTYPE_STREAM_MIDI:
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_MIDI_TRACK);
if (zero == IntPtr.Zero)
{
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_RIFF_INFO);
tagType = BASSTag.BASS_TAG_RIFF_INFO;
return zero;
}
tagType = BASSTag.BASS_TAG_MIDI_TRACK;
return zero;
case BASSChannelType.BASS_CTYPE_STREAM_AAC:
case BASSChannelType.BASS_CTYPE_STREAM_MP4:
case BASSChannelType.BASS_CTYPE_STREAM_ALAC:
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_MP4);
if (zero == IntPtr.Zero)
{
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_ID3V2);
if (zero == IntPtr.Zero)
{
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_APE);
if (zero == IntPtr.Zero)
{
zero = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_OGG);
if (zero != IntPtr.Zero)
{
tagType = BASSTag.BASS_TAG_OGG;
}
return zero;
}
tagType = BASSTag.BASS_TAG_APE;
return zero;
}
tagType = BASSTag.BASS_TAG_ID3V2;
return zero;
}
tagType = BASSTag.BASS_TAG_MP4;
return zero;
}
return IntPtr.Zero;
}
/// <summary>Add track to mixer.</summary>
/// <remarks>[MainThread]
///
/// This is safe provided that m_samplePool is thread-safe (which it is) and
/// provided that trackSyncProc is prepared to be called immediately.</remarks>
/// <param name="trackHStream">HSTREAM of the track to add.</param>
/// <param name="trackUserData">Track's user data.</param>
/// <param name="trackSync">the syncproc that will push more track data</param>
internal void AddStreamToMixer(int trackHStream)
{
bool ok;
BASS_CHANNELINFO trackInfo = new BASS_CHANNELINFO();
Bass.BASS_ChannelGetInfo(trackHStream, trackInfo);
BASS_CHANNELINFO mixerInfo = new BASS_CHANNELINFO();
Bass.BASS_ChannelGetInfo((int)m_mixerHStream, mixerInfo);
ok = BassMix.BASS_Mixer_StreamAddChannel(
(int)m_mixerHStream,
trackHStream,
BASSFlag.BASS_MIXER_DOWNMIX | BASSFlag.BASS_MIXER_NORAMPIN);
// try setting to 40% volume to reduce over-leveling
ok = Bass.BASS_ChannelSetAttribute(trackHStream, BASSAttribute.BASS_ATTRIB_VOL, (float)TopMixVolume);
ok = BassMix.BASS_Mixer_ChannelPlay(trackHStream);
}
/// <summary>
/// Create the stream for the file assigned to the Musicstream
/// </summary>
private void CreateStream()
{
if (!_temporaryStream)
{
Log.Info("BASS: ---------------------------------------------");
Log.Info("BASS: Creating BASS audio stream");
}
BASSFlag streamFlags = BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_DECODE;
_fileType = Utils.GetFileType(_filePath);
switch (_fileType.FileMainType)
{
case FileMainType.Unknown:
return;
case FileMainType.AudioFile:
case FileMainType.MidiFile:
_stream = Bass.BASS_StreamCreateFile(_filePath, 0, 0, streamFlags);
if (!_temporaryStream)
{
// Read the Tag
_musicTag = TagReader.TagReader.ReadTag(_filePath);
}
break;
case FileMainType.CDTrack:
// StreamCreateFile causes problems with Multisession disks, so use StreamCreate with driveindex and track index
int driveindex = Config.CdDriveLetters.IndexOf(_filePath.Substring(0, 1));
int tracknum = Convert.ToInt16(_filePath.Substring(_filePath.IndexOf(".cda") - 2, 2));
_stream = BassCd.BASS_CD_StreamCreate(driveindex, tracknum - 1, streamFlags);
break;
case FileMainType.MODFile:
_stream = Bass.BASS_MusicLoad(_filePath, 0, 0,
BASSFlag.BASS_SAMPLE_SOFTWARE | BASSFlag.BASS_SAMPLE_FLOAT |
BASSFlag.BASS_MUSIC_DECODE | BASSFlag.BASS_MUSIC_PRESCAN |
BASSFlag.BASS_MUSIC_RAMP, 0);
break;
case FileMainType.WebStream:
// Turn on parsing of ASX files
Bass.BASS_SetConfig(BASSConfig.BASS_CONFIG_NET_PLAYLIST, 2);
_stream = Bass.BASS_StreamCreateURL(_filePath, 0, streamFlags, null, IntPtr.Zero);
if (_stream != 0 && !_temporaryStream)
{
// Get the Tags and set the Meta Tag SyncProc
_tagInfo = new TAG_INFO(_filePath);
SetStreamTags(_stream);
if (BassTags.BASS_TAG_GetFromURL(_stream, _tagInfo))
{
GetMetaTags();
}
Bass.BASS_ChannelSetSync(_stream, BASSSync.BASS_SYNC_META, 0, _metaTagSyncProcDelegate, IntPtr.Zero);
Log.Debug("BASS: Webstream found - fetching stream {0}", Convert.ToString(_stream));
}
break;
}
if (_stream == 0)
{
Log.Error("BASS: Unable to create Stream for {0}. Reason: {1}.", _filePath,
Enum.GetName(typeof(BASSError), Bass.BASS_ErrorGetCode()));
return;
}
// When we have a MIDI file, we need to assign the sound banks to the stream
if (_fileType.FileMainType == FileMainType.MidiFile && Config.SoundFonts != null)
{
BassMidi.BASS_MIDI_StreamSetFonts(_stream, Config.SoundFonts, Config.SoundFonts.Length);
}
_channelInfo = Bass.BASS_ChannelGetInfo(_stream);
if (Bass.BASS_ErrorGetCode() != BASSError.BASS_OK)
{
Log.Error("BASS: Unable to get information for stream {0}. Reason: {1}.", _filePath,
Enum.GetName(typeof(BASSError), Bass.BASS_ErrorGetCode()));
return;
}
// This stream has just been created to check upfront, the sample rate
// We don't need further processing of this stream
if (_temporaryStream)
{
return;
}
Log.Info("BASS: Stream Information");
Log.Info("BASS: ---------------------------------------------");
Log.Info("BASS: File: {0}", _filePath);
Log.Debug("BASS: Type of Stream: {0}", _channelInfo.ctype);
Log.Info("BASS: Number of Channels: {0}", _channelInfo.chans);
Log.Info("BASS: Stream Samplerate: {0}", _channelInfo.freq);
Log.Debug("BASS: Stream Flags: {0}", _channelInfo.flags);
Log.Info("BASS: ---------------------------------------------");
Log.Debug("BASS: Registering stream playback events");
RegisterPlaybackEvents();
AttachDspToStream();
if (Config.EnableReplayGain && _musicTag != null)
{
SetReplayGain();
}
Log.Info("BASS: Successfully created BASS audio stream");
Log.Info("BASS: ---------------------------------------------");
}
public static bool BASS_TAG_GetFromURL(int stream, TAG_INFO tags)
{
if ((stream == 0) || (tags == null))
{
return false;
}
bool flag = false;
BASS_CHANNELINFO info = new BASS_CHANNELINFO();
if (Un4seen.Bass.Bass.BASS_ChannelGetInfo(stream, info))
{
tags.channelinfo = info;
}
IntPtr data = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_ICY);
if (data == IntPtr.Zero)
{
data = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_HTTP);
}
if (data != IntPtr.Zero)
{
flag = tags.UpdateFromMETA(data, false);
}
data = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_META);
if (data != IntPtr.Zero)
{
flag = tags.UpdateFromMETA(data, false);
}
else
{
data = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_OGG);
if (data == IntPtr.Zero)
{
data = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_APE);
}
if (data == IntPtr.Zero)
{
data = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, BASSTag.BASS_TAG_WMA);
}
if (data != IntPtr.Zero)
{
flag = tags.UpdateFromMETA(data, true);
}
}
tags.duration = Un4seen.Bass.Bass.BASS_ChannelBytes2Seconds(stream, Un4seen.Bass.Bass.BASS_ChannelGetLength(stream));
return flag;
}
public static bool BASS_TAG_GetFromFile(int stream, TAG_INFO tags)
{
if ((stream == 0) || (tags == null))
{
return false;
}
bool flag = false;
BASS_CHANNELINFO bass_channelinfo = new BASS_CHANNELINFO();
if (!Un4seen.Bass.Bass.BASS_ChannelGetInfo(stream, bass_channelinfo))
{
return flag;
}
tags.channelinfo = bass_channelinfo;
BASSTag tagType = BASSTag.BASS_TAG_UNKNOWN;
IntPtr p = BASS_TAG_GetIntPtr(stream, bass_channelinfo, out tagType);
if (p != IntPtr.Zero)
{
switch (tagType)
{
case BASSTag.BASS_TAG_MUSIC_NAME:
tags.title = Un4seen.Bass.Bass.BASS_ChannelGetMusicName(stream);
tags.artist = Un4seen.Bass.Bass.BASS_ChannelGetMusicMessage(stream);
flag = true;
goto Label_0229;
case BASSTag.BASS_TAG_MIDI_TRACK:
{
int num = 0;
while (true)
{
IntPtr data = Un4seen.Bass.Bass.BASS_ChannelGetTags(stream, (BASSTag) (0x11000 + num));
if (!(data != IntPtr.Zero))
{
if (!flag && (tags.NativeTags.Length > 0))
{
flag = true;
if (tags.NativeTags.Length > 0)
{
tags.title = tags.NativeTags[0].Trim();
}
if (tags.NativeTags.Length > 1)
{
tags.artist = tags.NativeTags[1].Trim();
}
}
goto Label_0229;
}
flag |= tags.UpdateFromMETA(data, false);
num++;
}
}
case BASSTag.BASS_TAG_ID3:
flag = ReadID3v1(p, tags);
goto Label_0229;
case BASSTag.BASS_TAG_ID3V2:
flag = ReadID3v2(p, tags);
goto Label_0229;
case BASSTag.BASS_TAG_OGG:
flag = tags.UpdateFromMETA(p, true);
goto Label_0229;
case BASSTag.BASS_TAG_HTTP:
case BASSTag.BASS_TAG_ICY:
case BASSTag.BASS_TAG_META:
goto Label_0229;
case BASSTag.BASS_TAG_APE:
flag = tags.UpdateFromMETA(p, true);
goto Label_0229;
case BASSTag.BASS_TAG_MP4:
flag = tags.UpdateFromMETA(p, true);
goto Label_0229;
case BASSTag.BASS_TAG_RIFF_INFO:
flag = tags.UpdateFromMETA(p, false);
goto Label_0229;
}
}
Label_0229:
tags.duration = Un4seen.Bass.Bass.BASS_ChannelBytes2Seconds(stream, Un4seen.Bass.Bass.BASS_ChannelGetLength(stream));
if (tags.bitrate == 0)
{
long num2 = Un4seen.Bass.Bass.BASS_StreamGetFilePosition(stream, BASSStreamFilePosition.BASS_FILEPOS_END);
tags.bitrate = (int) ((((double) num2) / (125.0 * tags.duration)) + 0.5);
}
return flag;
}
public static bool DetectCuePoints(string filename, float blockSize, ref double cueInPos, ref double cueOutPos,
double dBIn, double dBOut, int findZeroCrossing)
{
int handle =
Bass.BASS_StreamCreateFile(filename, 0L, 0L, BASSFlag.BASS_MUSIC_DECODE | BASSFlag.BASS_SAMPLE_OVER_POS);
if (handle == 0)
{
return false;
}
BASS_CHANNELINFO info = new BASS_CHANNELINFO();
if (!Bass.BASS_ChannelGetInfo(handle, info))
{
return false;
}
if (dBIn > 0.0)
{
dBIn = 0.0;
}
else if (dBIn < -90.0)
{
dBIn = -90.0;
}
if (dBOut > 0.0)
{
dBOut = 0.0;
}
else if (dBOut < -90.0)
{
dBOut = -90.0;
}
if (blockSize > 30f)
{
blockSize = 30f;
}
else if (blockSize < 0.1f)
{
blockSize = 0.1f;
}
short num2 = (short) DBToLevel(dBIn, 0x7fff);
short num3 = (short) DBToLevel(dBOut, 0x7fff);
long num4 = Bass.BASS_ChannelGetLength(handle);
long pos = 0L;
long num6 = num4;
int length = (int) Bass.BASS_ChannelSeconds2Bytes(handle, (double) blockSize);
short[] buffer = new short[length/2];
int num8 = 0;
int num9 = 0;
long num10 = 0L;
bool flag = false;
while (!flag && (num10 < num4))
{
num9 = Bass.BASS_ChannelGetData(handle, buffer, length);
pos = num10;
num8 = 0;
while (!flag && (num8 < num9))
{
if (ScanSampleLevel(buffer, num8, info.chans) < num2)
{
num8 += info.chans;
}
else
{
flag = true;
pos = num10 + num8;
}
}
if (!flag)
{
num10 += num9;
if (num9 == 0)
{
num10 = num4;
pos = num10;
}
}
}
if (flag && (pos < num4))
{
if (findZeroCrossing == 1)
{
while ((num8 > 0) && !IsZeroCrossingPos(buffer, num8, num8 - info.chans, info.chans))
{
num8 -= info.chans;
pos -= info.chans;
}
if (pos < 0L)
{
pos = 0L;
}
}
else if (findZeroCrossing == 2)
{
while ((num8 > 0) && (ScanSampleLevel(buffer, num8, info.chans) > (num2/2)))
{
num8 -= info.chans;
pos -= info.chans;
}
if (pos < 0L)
{
pos = 0L;
}
}
}
else
{
pos = 0L;
}
num9 = 0;
num10 = num4;
flag = false;
while (!flag && (num10 > 0L))
{
Bass.BASS_ChannelSetPosition(handle, ((num10 - length) >= 0L) ? (num10 - length) : 0L);
num9 = Bass.BASS_ChannelGetData(handle, buffer, length);
num6 = num10;
num8 = num9;
while (!flag && (num8 > 0))
{
if (ScanSampleLevel(buffer, num8 - info.chans, info.chans) < num3)
{
num8 -= info.chans;
}
else
{
flag = true;
num6 = num10 - num8;
}
}
if (!flag)
{
num10 -= num9;
if (num9 == 0)
{
num10 = 0L;
num6 = num4;
}
}
}
if (flag && (num6 > 0L))
{
if (findZeroCrossing == 1)
{
while ((num8 < num9) && !IsZeroCrossingPos(buffer, num8, num8 + info.chans, info.chans))
{
num8 += info.chans;
num6 += info.chans;
}
}
else if (findZeroCrossing == 2)
{
while ((num8 < num9) && (ScanSampleLevel(buffer, num8, info.chans) > (num3/2)))
{
num8 += info.chans;
num6 += info.chans;
}
}
}
else
{
num6 = num4;
}
cueInPos = Bass.BASS_ChannelBytes2Seconds(handle, pos);
cueOutPos = Bass.BASS_ChannelBytes2Seconds(handle, num6);
Bass.BASS_StreamFree(handle);
return true;
}
/// <summary>
/// 打开网络地址
/// </summary>
/// <param name="url">URL地址</param>
public void OpenUrlAsync(string url)
{
openningFile = url;
//Debug.WriteLine("已调用BassEngine.OpenUrlAsync()");
Stop();
pendingOperation = PendingOperation.None;
onlineFileWorker = new Thread(new ThreadStart(() =>
{
int handle = Un4seen.Bass.Bass.BASS_StreamCreateURL(url, 0, Un4seen.Bass.BASSFlag.BASS_DEFAULT, null, IntPtr.Zero);
Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
if (handle != 0)
{
if (openningFile == url) //该文件为正在打开的文件
{
ActiveStreamHandle = handle;
ChannelLength = TimeSpan.FromSeconds(Un4seen.Bass.Bass.BASS_ChannelBytes2Seconds(ActiveStreamHandle, Un4seen.Bass.Bass.BASS_ChannelGetLength(ActiveStreamHandle, 0)));
Un4seen.Bass.BASS_CHANNELINFO info = new Un4seen.Bass.BASS_CHANNELINFO();
Un4seen.Bass.Bass.BASS_ChannelGetInfo(ActiveStreamHandle, info);
sampleFrequency = info.freq;
this.downloadTimer.IsEnabled = true;
int syncHandle = Un4seen.Bass.Bass.BASS_ChannelSetSync(ActiveStreamHandle,
Un4seen.Bass.BASSSync.BASS_SYNC_END,
0,
endTrackSyncProc,
IntPtr.Zero);
if (syncHandle == 0)
throw new ArgumentException("Error establishing End Sync on file stream.", "path");
CanPlay = true;
RaiseOpenSucceededEvent();
switch (pendingOperation)
{
case PendingOperation.None:
break;
case PendingOperation.Play:
Play();
break;
case PendingOperation.Pause:
Pause();
break;
default:
break;
}
}
else //该文件不是正在打开的文件（即文件已过时，可能的原因是UI线程较忙，调用onlineFileWorker.Abort()时BeginInvoke的内容已提交，但还未执行）
{
if (!Un4seen.Bass.Bass.BASS_StreamFree(handle))
{
Debug.WriteLine("BASS_StreamFree失败：" + Un4seen.Bass.Bass.BASS_ErrorGetCode());
}
//Debug.WriteLine("已调用BASS_StreamFree()");
}
}
else
{
Debug.WriteLine(Un4seen.Bass.Bass.BASS_ErrorGetCode());
RaiseOpenFailedEvent();
}
}));
onlineFileWorker = null;
}));
onlineFileWorker.IsBackground = true;
onlineFileWorker.Start();
}
public static BASS_CHANNELINFO BASS_ChannelGetInfo(int handle)
{
BASS_CHANNELINFO info = new BASS_CHANNELINFO();
if (BASS_ChannelGetInfo(handle, info))
{
return info;
}
return null;
}
public static bool BASS_ChannelGetInfo(int handle, BASS_CHANNELINFO info)
{
bool flag = BASS_ChannelGetInfoInternal(handle, ref info._internal);
if (flag)
{
info.chans = info._internal.chans;
info.ctype = info._internal.ctype;
info.flags = info._internal.flags;
info.freq = info._internal.freq;
info.origres = info._internal.origres;
info.plugin = info._internal.plugin;
info.sample = info._internal.sample;
if ((info.flags & (BASSFlag.BASS_DEFAULT | BASSFlag.BASS_UNICODE)) != BASSFlag.BASS_DEFAULT)
{
info.filename = Marshal.PtrToStringUni(info._internal.filename);
return flag;
}
info.filename = Marshal.PtrToStringAnsi(info._internal.filename);
}
return flag;
}
/// <summary>
/// Creates a Musicstream object
/// </summary>
/// <param name="filePath">The Path of the song</param>
/// <param name="temporaryStream">Indicates that the stream is just temporary</param>
public MusicStream(string filePath, bool temporaryStream)
{
_temporaryStream = temporaryStream;
_fileType.FileMainType = FileMainType.Unknown;
_channelInfo = new BASS_CHANNELINFO();
_filePath = filePath;
_playbackCrossFadeProcDelegate = new SYNCPROC(PlaybackCrossFadeProc);
_cueTrackEndProcDelegate = new SYNCPROC(CueTrackEndProc);
_metaTagSyncProcDelegate = new SYNCPROC(MetaTagSyncProc);
_streamFreedDelegate = new SYNCPROC(StreamFreedProc);
CreateStream();
}
public TAG_INFO()
{
title = string.Empty;
artist = string.Empty;
album = string.Empty;
albumartist = string.Empty;
year = string.Empty;
comment = string.Empty;
genre = string.Empty;
track = string.Empty;
copyright = string.Empty;
encodedby = string.Empty;
composer = string.Empty;
publisher = string.Empty;
bpm = string.Empty;
filename = string.Empty;
pictures = new ArrayList();
nativetags = new ArrayList();
channelinfo = new BASS_CHANNELINFO();
}
