/// <summary>
/// 打开文件
/// </summary>
/// <param name="filename">文件名</param>
public void OpenFile(string filename)
{
openningFile = filename;
//Debug.WriteLine("已调用BassEngine.OpenFile()");
Stop();
pendingOperation = PendingOperation.None;
var flag = (Un4seen.Bass.BASSFlag)Enum.Parse(typeof(Un4seen.Bass.BASSFlag), ConfigurationManager.AppSettings["Bass.OpenFileConfig"]);
int handle = Un4seen.Bass.Bass.BASS_StreamCreateFile(filename, 0, 0, flag);
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.", "filename");
}
CanPlay = true;
RaiseOpenSucceededEvent();
switch (pendingOperation)
{
case PendingOperation.None:
break;
case PendingOperation.Play:
Play();
break;
case PendingOperation.Pause:
Pause();
break;
default:
break;
}
}
else
{
RaiseOpenFailedEvent();
}
}
/// <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);
}
#if DEBUG
else
{
Debug.WriteLine("Error={0}", Un4seen.Bass.Bass.BASS_ErrorGetCode());
}
#endif
}
/// <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);
}
#if DEBUG
else
{
Debug.WriteLine("Error={0}", Un4seen.Bass.Bass.BASS_ErrorGetCode());
}
#endif
}
/// <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>
/// 打开文件
/// </summary>
/// <param name="filename">文件名</param>
public void OpenFile(string filename)
{
openningFile = filename;
//Debug.WriteLine("已调用BassEngine.OpenFile()");
Stop();
pendingOperation = PendingOperation.None;
int handle = Un4seen.Bass.Bass.BASS_StreamCreateFile(filename, 0, 0, Un4seen.Bass.BASSFlag.BASS_DEFAULT);
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();
}
}
/// <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, openUrlConfig, 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.", "url");
}
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();
}
