// case1: 当mediaSource为null，newPlayRange不为null时只改变入出点。
// case2: 当mediaSource不为null，newPlayRange为null时等长替换媒体源。
// case3: 当mediaSource不为null，newPlayRange不为null时变长替换媒体源。
private void ChangeMediaSourceInternal(IPlayItem playItem, IMediaSource mediaSource, PlayRange?newPlayRange)
{
//if (_playlist.IsLocked(playItem)) throw new PlayItemLockedException();
if (mediaSource == null && newPlayRange == null)
{
return;
}
if (mediaSource == null && newPlayRange.Value == playItem.PlayRange)
{
return;
}
if (newPlayRange != null && (playItem.ScheduleMode == PlayScheduleMode.Timing || playItem.ScheduleMode == PlayScheduleMode.TimingBreak))
{
//_playlist.ValidateTimeRange(playItem.StartTime, newPlayRange.Value.Duration, playItem);
ValidateTimeRange(playItem.StartTime, newPlayRange.Value.Duration, playItem);
}
PlayRange playRange = newPlayRange ?? new PlayRange(TimeSpan.Zero, playItem.CalculatedPlayDuration /*playItem.PlayRange.Duration*/);
if (mediaSource == null)
{
mediaSource = playItem.MediaSource; //.Clone();
}
var newPlaySource = new PlaySource(mediaSource, playRange, playItem.CGItems);
IPlayItem newPlayItem = null;
switch (playItem.ScheduleMode)
{
case PlayScheduleMode.Timing:
newPlayItem = (IPlayItem)PlaybillItem.Timing(newPlaySource, playItem.StartTime);
break;
case PlayScheduleMode.TimingBreak:
newPlayItem = (IPlayItem)PlaybillItem.TimingBreak(newPlaySource, playItem.StartTime);
break;
case PlayScheduleMode.Auto:
newPlayItem = new AutoPlayItem(PlaybillItem.Auto(newPlaySource));
break;
}
var segment = this.FindSegment(playItem);
DateTime startTime = segment.StartTime;
int beginIndex = segment.BeginIndex;
DateTime stopTime = segment.StopTime;
int endIndex = segment.EndIndex;
Rebuild(startTime, stopTime, beginIndex, endIndex, (items) =>
{
var i = items.FindIndex(si => si.PlayItem == playItem);
items[i] = new ScheduleItem(newPlayItem);
});
}
internal void ChangePlayRange(IPlayItem playItem, PlayRange newRange)
{
int index = _playItems.IndexOf(playItem);
if (index < 0)
{
throw new ArgumentException();
}
IPlayItem newPlayItem = null;
if (playItem.ScheduleMode != PlayScheduleMode.Auto)
{
if (newRange.Duration > playItem.PlayRange.Duration)
{
var newStopTime = playItem.StartTime.Add(newRange.Duration);
if (this.HasTimingConflict(playItem.StartTime, newStopTime, playItem))
{
throw new InvalidOperationException();
}
}
newPlayItem = (IPlayItem)((TimingPlaybillItem)playItem).Clone(newRange);
}
else
{
newPlayItem = new AutoPlayItem(((AutoPlaybillItem)playItem.PlaybillItem).Clone(newRange));
}
_playItems[index] = newPlayItem;
this.IsDirty = true;
}
public void ForcePlay(IPlayItem currentItem, IPlayItem forcedItem)
{
this.Delete(forcedItem);
DateTime stopTime;
int beginIndex;
var startTime = DateTime.Now.AddSeconds(1.0);
var currentIndex = _playlist.FindIndex(i => i.PlayItem == currentItem);
beginIndex = currentIndex + 1;
Tuple <ScheduleItem, int> temp = FindFirstTiming(beginIndex, (i) => true);
int endIndex;
if (temp.Item1 != null)
{
stopTime = temp.Item1.StartTime;
endIndex = temp.Item2 - 1;
}
else
{
stopTime = DateTime.MaxValue;
endIndex = _playlist.Count - 1;
}
// 调整当前项的播放时长（入出点）
// 复制当前项，并调整时长。
var startOffset = startTime.Subtract(currentItem.StartTime);
var newRange = new PlayRange(currentItem.CalculatedPlayRange.StartPosition + startOffset,
currentItem.CalculatedPlayRange.Duration - startOffset);
var copyItem = new AutoPlayItem(new AutoPlaybillItem(currentItem.PlaybillItem.PlaySource.Clone(newRange)));
//if (segment.Head == null)
//{
// startTime = segment.StartTime;
// beginIndex = segment.BeginIndex;
//}
//else
//{
// startTime = segment.Head.CalculatedStopTime;
// beginIndex = segment.BeginIndex + 1;
//}
//stopTime = segment.StopTime;
//endIndex = segment.EndIndex;
this.Rebuild(startTime, stopTime, beginIndex, endIndex, (items) =>
{
// 插入复制项和forcedItem。
items.Insert(0, new ScheduleItem(copyItem));
items.Insert(0, new ScheduleItem(forcedItem));
});
}
internal static AutoPlayItem CreateAutoPadding(DateTime startTime, TimeSpan duration)
{
AutoPlaybillItem billItem = AutoPlaybillItem.CreateAutoPadding(duration);
AutoPlayItem playItem = new AutoPlayItem(billItem);
playItem.StartTime = startTime;
return(playItem);
}
public void Split(TimeSpan duration, out IPlayItem first, out IPlayItem second)
{
PlayRange firstRange, secondRange;
FCSPlayout.Domain.PlayRange.Split(this.PlayRange, duration, out firstRange, out secondRange);
first = new AutoPlayItem(this.PlaybillItem.Clone(firstRange), firstRange);
second = new AutoPlayItem(this.PlaybillItem.Clone(secondRange), secondRange);
}
internal void ChangeTimingToAuto(IPlayItem playItem)
{
var index = _playItems.IndexOf(playItem);
if (index < 0)
{
throw new InvalidOperationException();
}
//Debug.Assert();
var newPlayItem = new AutoPlayItem(AutoPlaybillItem.Auto(playItem.PlaybillItem.PlaySource));
_playItems[index] = newPlayItem;
this.IsDirty = true;
}
internal void ChangeSource(IPlayItem playItem, IMediaSource newSource, PlayRange?newRange)
{
int index = _playItems.IndexOf(playItem);
if (index < 0)
{
throw new ArgumentException();
}
IPlayItem newPlayItem = null;
if (newRange != null && playItem.ScheduleMode != PlayScheduleMode.Auto)
{
if (newRange.Value.Duration > playItem.PlayRange.Duration)
{
var newStopTime = playItem.StartTime.Add(newRange.Value.Duration);
if (this.HasTimingConflict(playItem.StartTime, newStopTime, playItem))
{
throw new InvalidOperationException();
}
}
}
else
{
}
newRange = newRange == null ? new PlayRange(TimeSpan.Zero, playItem.CalculatedPlayDuration) : newRange.Value;
var newPlaySource = new PlaySource(newSource, newRange.Value, playItem.PlaybillItem.PlaySource.CGItems);
switch (playItem.ScheduleMode)
{
case PlayScheduleMode.Auto:
newPlayItem = new AutoPlayItem(AutoPlaybillItem.Auto(newPlaySource));
break;
case PlayScheduleMode.Timing:
newPlayItem = (IPlayItem)TimingPlaybillItem.Timing(newPlaySource, playItem.StartTime);
break;
case PlayScheduleMode.TimingBreak:
newPlayItem = (IPlayItem)TimingPlaybillItem.TimingBreak(newPlaySource, playItem.StartTime);
break;
}
_playItems[index] = newPlayItem;
this.IsDirty = true;
}
/// <summary>
/// 把定时播或定时插播改为顺播。
/// </summary>
/// <param name="playItem"></param>
private void ChangeToAutoScheduleInternal(IPlayItem playItem)
{
Debug.Assert(playItem.ScheduleMode == PlayScheduleMode.Timing || playItem.ScheduleMode == PlayScheduleMode.TimingBreak);
//if (_playlist.IsLocked(playItem)) throw new PlayItemLockedException();
var prevTuple = this.FindLastTiming(i => i.StartTime < playItem.StartTime);
DateTime startTime, stopTime;
int beginIndex, endIndex;
if (prevTuple.Item2 == -1)
{
startTime = _playlist[0].StartTime;
beginIndex = 0;
}
else
{
startTime = prevTuple.Item1.CalculatedStopTime;
beginIndex = prevTuple.Item2 + 1;
}
var nextTuple = this.FindFirstTiming(beginIndex, i => i.StartTime > playItem.StartTime);
if (nextTuple.Item2 == -1)
{
stopTime = DateTime.MaxValue;
endIndex = _playlist.Count - 1;
}
else
{
stopTime = nextTuple.Item1.StartTime;
endIndex = nextTuple.Item2 - 1;
}
var playSource = ((PlaybillItem)playItem.PlaybillItem).PlaySource.Clone();
var newAutoItem = new AutoPlayItem(PlaybillItem.Auto(playSource));
Rebuild(startTime, stopTime, beginIndex, endIndex, (items) =>
{
var i = items.FindIndex(si => si.PlayItem == playItem);
items[i] = new ScheduleItem(newAutoItem);
});
}
public void Append(IList <ScheduleItem> playItems)
{
if (playItems.Count == 0)
{
return;
}
var itemStartTime = playItems[0].StartTime;
var prevTuple = this.FindLastTiming(i => i.StartTime <= itemStartTime);
int beginIndex;
if (prevTuple.Item2 == -1)
{
beginIndex = 0;
}
else
{
beginIndex = prevTuple.Item2;
}
while (beginIndex < _playlist.Count)
{
if (_playlist[beginIndex].StartTime >= itemStartTime)
{
break;
}
beginIndex++;
}
if (beginIndex == _playlist.Count)
{
if (_playlist.Count == 0)
{
var playlistStartTime = GetPlaylistStartTime(); // _playlist.GetStartTime();
if (playlistStartTime != null)
{
TimeSpan duration = itemStartTime.Subtract(playlistStartTime.Value);
if (duration > TimeSpan.Zero)
{
var autoPadding = new ScheduleItem(AutoPlayItem.CreateAutoPadding(playlistStartTime.Value, duration));
var newItems = new List <ScheduleItem>();
newItems.Add(autoPadding);
newItems.AddRange(playItems);
playItems = newItems;
}
else
{
}
}
else //playlistStartTime == null
{
}
}
else
{
var lastStopTime = _playlist[_playlist.Count - 1].CalculatedStopTime;
TimeSpan duration = itemStartTime.Subtract(lastStopTime);
if (duration > TimeSpan.Zero)
{
var autoPadding = new ScheduleItem(AutoPlayItem.CreateAutoPadding(lastStopTime, duration));
var newItems = new List <ScheduleItem>();
newItems.Add(autoPadding);
newItems.AddRange(playItems);
playItems = newItems;
}
else
{
}
}
}
//_playlist.Update(beginIndex, _playlist.Count - beginIndex, playItems);
UpdatePlaylist(beginIndex, _playlist.Count - beginIndex, playItems);
}
private ScheduleItem CreateAutoPadding(DateTime startTime, TimeSpan duration)
{
return(new ScheduleItem(AutoPlayItem.CreateAutoPadding(startTime, duration)));
}
/// <summary>
/// 把指定的顺播上移一个位置。
/// </summary>
/// <param name="playItem"></param>
public void MoveUp(IPlayItem playItem)
{
Debug.Assert(playItem.ScheduleMode == PlayScheduleMode.Auto);
//if (_playlist.IsLocked(playItem)) throw new PlayItemLockedException();
if (_playlist[0] == playItem)
{
return;
}
//var index = _playlist.FindFirstIndex(i => i == playItem);
var index = _playlist.FindIndex(i => i.PlayItem == playItem);
if (index == -1)
{
throw new ArgumentException();
}
if (index >= 2)
{
var newPrevItem = _playlist[index - 2];
//Reorder(newPrevItem, playItem);
Reorder(newPrevItem.PlayItem, playItem);
}
else
{
Debug.Assert(index == 1);
var oldPrevItem = _playlist[0];
if (oldPrevItem.ScheduleMode == PlayScheduleMode.Timing || oldPrevItem.ScheduleMode == PlayScheduleMode.TimingBreak)
{
return;
}
var playSource = new PlaySource(playItem.MediaSource /*.Clone()*/, playItem.PlayRange, playItem.CGItems);
var newAutoItem = new AutoPlayItem(PlaybillItem.Auto(playSource));
var nextTuple = this.FindFirstTiming(index + 1, (i) => true);
DateTime startTime = oldPrevItem.StartTime;
int beginIndex = 0;
DateTime stopTime;
int endIndex;
if (nextTuple.Item2 == -1)
{
stopTime = DateTime.MaxValue;
endIndex = _playlist.Count - 1;
}
else
{
stopTime = nextTuple.Item1.StartTime;
endIndex = nextTuple.Item2 - 1;
}
this.Rebuild(startTime, stopTime, beginIndex, endIndex, (items) =>
{
items.RemoveAt(1);
items.Insert(0, new ScheduleItem(newAutoItem));
});
}
}
internal ScheduleItem Merge(ScheduleItem autoItem)
{
return(new ScheduleItem(AutoPlayItem.Merge(_playItem, autoItem._playItem)));
}
internal bool CanMerge(ScheduleItem autoItem)
{
return(AutoPlayItem.CanMerge(_playItem, autoItem._playItem));
}
