public static IPlaybillItem ToPlaybillItem(this PlaybillItemEntity entity)
{
MediaSourceEntity sourceEntity = entity.MediaSource;
IMediaSource mediaSource = null;
if (sourceEntity == null)
{
mediaSource = new NullMediaSource(entity.MediaSourceTitle, TimeSpan.FromSeconds(entity.MediaSourceDuration.Value));
}
else
{
mediaSource = entity.MediaSource.ToMediaSource(entity); // FromEntity(entity, entity.MediaSource);
}
IPlaySource playSource = Create(entity, mediaSource);
IPlaybillItem result = null;
switch (entity.ScheduleMode)
{
case PlayScheduleMode.Auto:
result = PlaybillItem.Auto(playSource);
break;
case PlayScheduleMode.Timing:
result = PlaybillItem.Timing(playSource, entity.StartTime.Value);
break;
case PlayScheduleMode.TimingBreak:
result = PlaybillItem.TimingBreak(playSource, entity.StartTime.Value);
break;
}
result.Id = entity.Id;
return(result);
}
internal static AutoPlaybillItem CreateAutoPadding(TimeSpan duration)
{
IPlaySource playSource = FCSPlayout.Domain.PlaySource.CreateAutoPadding(duration);
return(new AutoPlaybillItem(playSource)
{
IsAutoPadding = true
});
}
public IPlaySource Merge(IPlaySource playSource)
{
if (!CanMerge(playSource))
{
throw new InvalidOperationException();
}
var range = FCSPlayout.Domain.PlayRange.Merge(this.PlayRange, playSource.PlayRange);
return(this.Clone(range));
}
internal static PlayRange Adjust(this IPlaySource playSource, PlayRange playRange)
{
var range = playSource.MediaSource.Adjust(playRange);
if (!playSource.PlayRange.Include(range))
{
throw new ArgumentOutOfRangeException("playRange",
string.Format("<{0}>无效，有效范围为{1}。", playRange, playSource.PlayRange));
}
return(range);
}
internal NormalPlaySource(IPlaySource playSource)
{
if (playSource == null)
{
throw new ArgumentNullException("playSource");
}
var playRange = playSource.Adjust(playSource.PlayRange);
this.MediaSource = playSource.MediaSource;
this.PlayRange = playRange;
}
public bool CanMerge(IPlaySource playSource)
{
if (!this.MediaSource.Equals(playSource.MediaSource))
{
return(false);
}
if (!Equals(this.CGItems, playSource.CGItems))
{
return(false);
}
return(FCSPlayout.Domain.PlayRange.CanMerge(this.PlayRange, playSource.PlayRange));
}
private async Task <IWaveSource> GetSoundSource(IPlaySource track, long position)
{
_soundSourceLoadingToken?.Cancel();
_soundSourceLoadingToken = new CancellationTokenSource();
var token = _soundSourceLoadingToken.Token;
IWaveSource result = null;
TrackBitrate = track.Bitrate;
try
{
switch (track.Type)
{
case PlaySourceType.LocalFile:
result =
await
Task.Run(() => CodecFactory.Instance.GetCodec(((LocalFilePlaySource)track).Path), token);
break;
case PlaySourceType.Http:
result =
await Task.Run(() => CodecFactory.Instance.GetCodec(((HttpPlaySource)track).WebUri), token);
break;
case PlaySourceType.Stream:
result = new DmoMp3Decoder(((StreamPlaySource)track).Stream);
break;
default:
throw new ArgumentOutOfRangeException();
}
// ReSharper disable once AccessToDisposedClosure
await Task.Run(() => result.Position = position, token);
}
catch (TaskCanceledException)
{
result?.Dispose();
return(null);
}
return(token.IsCancellationRequested ? null : result);
}
public static PlaybillItem Timing(IPlaySource playSource, DateTime startTime)
{
return(new TimingPlaybillItem(playSource, startTime, false));
}
protected PlaybillItem(IPlaySource playSource, PlayScheduleMode scheduleMode)
{
this.Id = Guid.NewGuid();
this.PlaySource = playSource;
this.ScheduleMode = scheduleMode;
}
public static PlaybillItem TimingBreak(IPlaySource playSource, DateTime startTime)
{
return(new TimingPlaybillItem(playSource, startTime, true));
}
internal static AutoPlaybillItem Create(IPlaySource playSource)
{
return(CreateInternal(new NormalPlaySource(playSource)));
}
public AutoPlaybillItem(IPlaySource playSource)
: base(playSource, PlayScheduleMode.Auto)
{
}
internal static TimingPlaybillItem Create(DateTime startTime, IPlaySource playSource, bool isBreak)
{
return(new TimingPlaybillItem(startTime, new NormalPlaySource(playSource), isBreak));
}
public async Task <bool> OpenTrack(IPlaySource track, bool openCrossfading, long position)
{
IsLoading = true;
if (!openCrossfading)
{
StopPlayback();
}
if (_crossfadeService.IsFading)
{
_crossfadeService.Cancel();
}
if (_soundSource != null && !openCrossfading)
{
_soundSource.Dispose();
}
if (openCrossfading && _soundSource != null)
{
_soundOut.Stopped -= SoundOut_Stopped;
_loopStream.StreamFinished -= LoopStream_StreamFinished;
_simpleNotificationSource.BlockRead -= SimpleNotificationSource_BlockRead;
_crossfadeService.CrossfadeOut(_soundOut, CrossfadeDuration).Forget();
_soundOut = null;
}
var tempSource = await GetSoundSource(track, position);
if (tempSource == null)
{
return(false);
}
_soundSource = tempSource;
if (_soundSource.WaveFormat.SampleRate < 44100) //Correct sample rate
{
_soundSource = _soundSource.ChangeSampleRate(44100);
}
_soundSource = _soundSource
.AppendSource(x => new LoopStream(x), out _loopStream)
.AppendSource(x => Equalizer.Create10BandEqualizer(x.ToSampleSource()), out _equalizer)
.AppendSource(x => new SimpleNotificationSource(x)
{
Interval = 100
}, out _simpleNotificationSource)
.ToWaveSource();
_loopStream.EnableLoop = IsLooping;
_loopStream.StreamFinished += LoopStream_StreamFinished;
_simpleNotificationSource.BlockRead += SimpleNotificationSource_BlockRead;
for (var i = 0; i < EqualizerBands.Count; i++)
{
SetEqualizerBandValue(EqualizerBands.Bands[i].Value, i);
}
if (_soundOut == null)
{
_soundOut = _soundOutProvider.GetSoundOut();
_soundOut.Stopped += SoundOut_Stopped;
}
_soundOut.Initialize(_soundSource);
_soundOut.Volume = Volume;
IsLoading = false;
OnTrackLengthChanged();
_playTimeStopwatch.Reset();
if (openCrossfading)
{
await TogglePlayPause();
_fadingService.FadeIn(_soundOut, Volume).Forget();
}
CurrentStateChanged();
OnPositionChanged();
return(true);
}
internal static PlaybillItem CreateAuto(IPlaySource playSource)
{
return(AutoPlaybillItem.Create(playSource));
}
internal static bool IsAutoPadding(this IPlaySource playSource)
{
return(playSource.MediaSource.IsAutoPadding());
}
private void AddTiming2(DateTime startTime, IPlaySource playSource)
{
// 验证操作的合法性。
ValidatePlayDuration(playSource.PlayRange.Duration);
ValidateStartTime(startTime, false);
EnsureNoTimingConflict(startTime, playSource.PlayRange.Duration);
// 触发事件前置事件。
List <PlaybillItem> tempList = new List <PlaybillItem>();
// 重新计算调度信息。
DateTime beginTime;
var prevIndex = _playlist.FindLastIndex(i => !i.IsSkipped() && i.ScheduleInfo.StopTime <= startTime);
if (prevIndex == -1)
{
if (_playlist.Count == 0)
{
if (_playlist.HasMinStartTime() && _playlist.MinStartTime.Value < startTime)
{
beginTime = _playlist.MinStartTime.Value;
}
else
{
beginTime = startTime;
}
}
else
{
beginTime = _playlist[0].ScheduleInfo.StartTime; // startTime;
beginTime = beginTime > startTime ? startTime : beginTime;
}
// [prevIndex+1, index-1], 注：index-prevIndex+1
// 替换范围：[prevIndex+1, index-1] (删除的起始索引0==prevIndex+1,数量index==index-prevIndex-1)
}
else
{
beginTime = _playlist[prevIndex].ScheduleInfo.StopTime;
// 注：prevIndex可能等于index-1。
// 当prevIndex小于index-1时。
// 替换范围：[prevIndex + 1, index-1] (删除的起始索引prevIndex + 1,数量index-prevIndex-1 )
// 当prevIndex等于index-1时。(删除的起始索引prevIndex + 1==index,数量index-prevIndex-1==0 )
// 在index处插入0个或1个。
}
DateTime endTime;
var nextIndex = _playlist.FindFirstIndex(prevIndex + 1, i => !i.IsSkipped() && i.ScheduleInfo.ScheduleMode == ScheduleMode.Timing && i.ScheduleInfo.StartTime > startTime);
//beginTime = playItem.ScheduleInfo.StopTime;
if (nextIndex == -1)
{
endTime = DateTime.MaxValue;
nextIndex = _playlist.Count;
// [index + 1, _playlist.Count - 1], 注：index + 1可能等于_playlist.Count - 1
// 替换范围：[index + 1, _playlist.Count - 1] (删除的起始索引index + 1, 数量nextIndex-index-1==_playlist.Count-index-1)
}
else
{
endTime = _playlist[nextIndex].ScheduleInfo.StartTime;
// 注：nextIndex可能等于index+1。
// 当nextIndex大于index+1时。
// 替换范围：[index+1, nextIndex-1] (删除的起始索引index+1,数量nextIndex-index-1 )
// 当nextIndex等于index+1时。(删除的起始索引index+1, 数量nextIndex-index-1==0 )
// 在index+1处插入0个或1个。
}
PlaybillItem playItem = PlaybillItem.CreateTiming(startTime, new NormalPlaySource(playSource), false);
Debug.Assert(beginTime <= endTime);
Debug.Assert(beginTime <= startTime && endTime > playItem.ScheduleInfo.StopTime);
for (int i = prevIndex + 1; i < nextIndex; i++)
{
tempList.Add(_playlist[i].PlaybillItem);
//builder.Add(_playlist[i].PlaybillItem);
}
// case 1: prevIndex + 1==nextIndex-1，替换起始位置prevIndex + 1，删除数量1 (nextIndex-1-prevIndex)
// case 2: prevIndex + 1<nextIndex-1，替换起始位置prevIndex + 1，删除数量1 (nextIndex-1-prevIndex)
// case 3: prevIndex + 1>nextIndex-1
// 替换范围为[prevIndex + 1, nextIndex-1]
// 触发事件（表示操作完成）。
}
private void AddTiming(DateTime startTime, IPlaySource playSource)
{
// 验证操作的合法性。
ValidatePlayDuration(playSource.PlayRange.Duration);
ValidateStartTime(startTime, false);
EnsureNoTimingConflict(startTime, playSource.PlayRange.Duration);
// 获取插入位置。
// 第一个开始时间大于等于startTime的索引（-1表示列表为空或开始时间全部小于startTime）
int index = FindTimingInsertIndex(startTime);
//_playlist.FindFirstIndex((i)=>!i.IsSkipped() && i.ScheduleInfo.StartTime>=startTime);
//index = index < 0 ? _playlist.Count : index;
// 下面的处理代码确保顺播片断不会被定时播分隔。
var tempIndex = index;
while (tempIndex < _playlist.Count)
{
var item = _playlist[tempIndex];
if (item.ScheduleInfo.ScheduleMode == ScheduleMode.Timing)
{
break;
}
else if (item.ScheduleInfo.ScheduleMode == ScheduleMode.TimingBreak)
{
continue;
}
else if (!item.IsSegment() || item.IsFirstSegment())
{
break;
}
else
{
if (tempIndex != index)
{
var temp = _playlist[tempIndex];
_playlist.RemoveAt(tempIndex);
_playlist.Insert(index, temp);
}
index++;
}
tempIndex++;
}
// 触发事件前置事件。
PlaybillItem playItem = PlaybillItem.CreateTiming(startTime, new NormalPlaySource(playSource), false);
Insert(index, playItem);
// 重新计算调度信息。
DateTime beginTime;
DateTime endTime;
if (index == 0)
{
if (_playlist.HasMinStartTime() && _playlist.MinStartTime.Value < startTime)
{
beginTime = _playlist.MinStartTime.Value;
endTime = startTime;
using (var builder = Build())
{
Replace(0, 0, builder.Build(beginTime, endTime));
}
}
}
else if (index > 0) // 有前部片断
{
var prevIndex = _playlist.FindLastIndex(index - 1, i => !i.IsSkipped() && i.ScheduleInfo.StopTime <= startTime);
endTime = startTime;
if (prevIndex == -1)
{
beginTime = _playlist[0].ScheduleInfo.StartTime; // startTime;
beginTime = beginTime > endTime ? endTime : beginTime;
// [prevIndex+1, index-1], 注：index-prevIndex+1
// 替换范围：[prevIndex+1, index-1] (删除的起始索引0==prevIndex+1,数量index==index-prevIndex-1)
}
else
{
beginTime = _playlist[prevIndex].ScheduleInfo.StopTime;
// 注：prevIndex可能等于index-1。
// 当prevIndex小于index-1时。
// 替换范围：[prevIndex + 1, index-1] (删除的起始索引prevIndex + 1,数量index-prevIndex-1 )
// 当prevIndex等于index-1时。(删除的起始索引prevIndex + 1==index,数量index-prevIndex-1==0 )
// 在index处插入0个或1个。
}
using (var builder = Build())
{
for (int i = prevIndex + 1; i < index; i++)
{
builder.Add(_playlist[i].PlaybillItem);
}
Replace(prevIndex + 1, index - prevIndex - 1, builder.Build(beginTime, endTime));
}
}
if (index < _playlist.Count - 1) // 有后部片断
{
var nextIndex = _playlist.FindFirstIndex(index + 1, i => !i.IsSkipped() && i.ScheduleInfo.ScheduleMode == ScheduleMode.Timing);
beginTime = playItem.ScheduleInfo.StopTime;
if (nextIndex == -1)
{
endTime = DateTime.MaxValue;
nextIndex = _playlist.Count;
// [index + 1, _playlist.Count - 1], 注：index + 1可能等于_playlist.Count - 1
// 替换范围：[index + 1, _playlist.Count - 1] (删除的起始索引index + 1, 数量nextIndex-index-1==_playlist.Count-index-1)
}
else
{
endTime = _playlist[nextIndex].ScheduleInfo.StartTime;
// 注：nextIndex可能等于index+1。
// 当nextIndex大于index+1时。
// 替换范围：[index+1, nextIndex-1] (删除的起始索引index+1,数量nextIndex-index-1 )
// 当nextIndex等于index+1时。(删除的起始索引index+1, 数量nextIndex-index-1==0 )
// 在index+1处插入0个或1个。
}
using (var builder = Build())
{
for (int i = index + 1; i < nextIndex; i++)
{
builder.Add(_playlist[i].PlaybillItem);
}
Replace(index + 1, nextIndex - index - 1, builder.Build(beginTime, endTime));
}
}
// 触发事件（表示操作完成）。
}
public static PlaybillItem Auto(IPlaySource playSource)
{
return(new AutoPlaybillItem(playSource));
}
private async Task<IWaveSource> GetSoundSource(IPlaySource track, long position)
{
_soundSourceLoadingToken?.Cancel();
_soundSourceLoadingToken = new CancellationTokenSource();
var token = _soundSourceLoadingToken.Token;
IWaveSource result = null;
TrackBitrate = track.Bitrate;
try
{
switch (track.Type)
{
case PlaySourceType.LocalFile:
result =
await
Task.Run(() => CodecFactory.Instance.GetCodec(((LocalFilePlaySource) track).Path), token);
break;
case PlaySourceType.Http:
result =
await Task.Run(() => CodecFactory.Instance.GetCodec(((HttpPlaySource) track).WebUri), token);
break;
case PlaySourceType.Stream:
result = new DmoMp3Decoder(((StreamPlaySource) track).Stream);
break;
default:
throw new ArgumentOutOfRangeException();
}
// ReSharper disable once AccessToDisposedClosure
await Task.Run(() => result.Position = position, token);
}
catch (TaskCanceledException)
{
result?.Dispose();
return null;
}
return token.IsCancellationRequested ? null : result;
}
internal static PlaybillItem CreateTiming(DateTime startTime, IPlaySource playSource, bool isBreak)
{
return(TimingPlaybillItem.Create(startTime, playSource, isBreak));
}
public TimingPlaybillItem(IPlaySource playSource, DateTime startTime, bool isBreak)
: base(playSource, isBreak ? PlayScheduleMode.TimingBreak : PlayScheduleMode.Timing)
{
base.StartTime = startTime;
}
public async Task<bool> OpenTrack(IPlaySource track, bool openCrossfading, long position)
{
IsLoading = true;
if (!openCrossfading)
StopPlayback();
if (_crossfadeService.IsFading)
_crossfadeService.Cancel();
if (_soundSource != null && !openCrossfading)
_soundSource.Dispose();
if (openCrossfading && _soundSource != null)
{
_soundOut.Stopped -= SoundOut_Stopped;
_loopStream.StreamFinished -= LoopStream_StreamFinished;
_simpleNotificationSource.BlockRead -= SimpleNotificationSource_BlockRead;
_crossfadeService.CrossfadeOut(_soundOut, CrossfadeDuration).Forget();
_soundOut = null;
}
var tempSource = await GetSoundSource(track, position);
if (tempSource == null)
return false;
_soundSource = tempSource;
if (_soundSource.WaveFormat.SampleRate < 44100) //Correct sample rate
_soundSource = _soundSource.ChangeSampleRate(44100);
_soundSource = _soundSource
.AppendSource(x => new LoopStream(x), out _loopStream)
.AppendSource(x => Equalizer.Create10BandEqualizer(x.ToSampleSource()), out _equalizer)
.AppendSource(x => new SimpleNotificationSource(x) {Interval = 100}, out _simpleNotificationSource)
.ToWaveSource();
_loopStream.EnableLoop = IsLooping;
_loopStream.StreamFinished += LoopStream_StreamFinished;
_simpleNotificationSource.BlockRead += SimpleNotificationSource_BlockRead;
for (var i = 0; i < EqualizerBands.Count; i++)
SetEqualizerBandValue(EqualizerBands.Bands[i].Value, i);
if (_soundOut == null)
{
_soundOut = _soundOutProvider.GetSoundOut();
_soundOut.Stopped += SoundOut_Stopped;
}
_soundOut.Initialize(_soundSource);
_soundOut.Volume = Volume;
IsLoading = false;
OnTrackLengthChanged();
_playTimeStopwatch.Reset();
if (openCrossfading)
{
await TogglePlayPause();
_fadingService.FadeIn(_soundOut, Volume).Forget();
}
CurrentStateChanged();
OnPositionChanged();
return true;
}
