/// <summary> Updates clip list if it changed. (Call from within Update() function) </summary>
public void UpdateClips()
{
if (m_sequence == null)
{
return;
}
List <AudioClip> allClips = new List <AudioClip>(m_sequence.Clips.Length);
foreach (Sequence.ClipData clip in m_sequence.Clips)
{
if (clip.m_clip != null)
{
allClips.Add(clip.m_clip);
}
}
if (allClips.Count == 0)
{
Debug.LogWarning("No audio clips found in Sequence '" + m_name + "'!");
}
bool changed = false;
if (allClips.Count != DirectClipData.Length)
{
//length changed so it definitly changed.
changed = true;
}
else
{
for (int c = 0; c < DirectClipData.Length; ++c)
{
if (DirectClipData[c] != allClips[c])
{
changed = true;
break;
}
}
}
if (changed) //update current raw clip list then select our current track if it still exists.
{
RawAudioData[] newRawClipData = new RawAudioData[allClips.Count];
AudioClip curClip = m_isOutputDirect ? DirectClipData[currentClipIdx] : RawClipData[currentClipIdx].BaseClip;
int newClipIdx = -1;
for (int c = 0; c < allClips.Count; ++c)
{
if (allClips[c] == curClip)
{
newClipIdx = c;
}
newRawClipData[c] = AmbienceManager.GetAudioData(allClips[c]);
}
NextClipIdx = -1;
if (newClipIdx < 0)
{
PlayToFade = RawClipData[currentClipIdx];
RawClipData = newRawClipData;
newClipIdx = NextClipIdx;
DirectFadeOut = true;
}
else
{
RawClipData = newRawClipData;
}
currentClipIdx = newClipIdx;
DirectClipData = allClips.ToArray();
if (m_sequence.RandomizeVolume)
{
curVolumeMod = Helpers.GetRandom(m_sequence.MinMaxVolume);
}
else
{
curVolumeMod = 1f;
}
if (!isSynced && m_sequence.RandomizePlaybackSpeed)
{
curPlaybackSpeedMod = Helpers.GetRandom(m_sequence.MinMaxPlaybackSpeed);
}
else
{
curPlaybackSpeedMod = 1f;
}
if (MySyncGroup != null)
{
MySyncGroup.UpdateLength();
}
}
}
/// <summary>
/// Gets a single audio frame with passed number of audio channels
/// </summary>
/// <param name="step">Time in seconds to add to track time</param>
/// <param name="volume">Volume level to multiply audio data by</param>
/// <param name="ret">Array to fill with audio data</param>
/// <param name="startOffset">Starting offset of Array to begin writing data</param>
/// <param name="numChannels">Number of audio channels to create (will duplicate data if numChannels exceeds channel count in clip)</param>
public void GetFrame(double step, float volume, float[] ret, int startOffset, int numChannels)
{
if (m_isOutputDirect || RawClipData.Length == 0)
{
return;
}
//advance time for this frame
trackTime += step * CurPlaybackSpeed;
//ensure we are within the bounds of the clips
if (currentClipIdx < 0)
{
currentClipIdx = 0;
}
else if (currentClipIdx >= RawClipData.Length)
{
currentClipIdx = RawClipData.Length - 1;
}
RawAudioData currentClipData = PlayToFade ?? RawClipData[currentClipIdx];
if (!currentClipData.IsLoaded) //wait for it to finish loading
{
return;
}
if (IsPlayOnce && trackTime >= currentClipData.Length)
{
isDelaying = true;
return;
}
if (PlayToFade != null)
{
if (m_sequence != null && m_sequence.m_trackFadeTime > 0)
{
CurFade = Mathf.MoveTowards(CurFade, 0f, (float)step / m_sequence.m_trackFadeTime);
}
else
{
CurFade = 0f;
}
if (CurFade > 0f)
{
if (m_sequence == null || !m_sequence.m_forceMuted)
{
PlayToFade.GetFrame(trackTime, CurVolume * volume, ret, startOffset, numChannels);
}
return;
}
else
{
StoppedPlaying = PlayToFade.BaseClip;
//Debug.Log("PlayToFade ended.");
PlayToFade = null;
if (IsPlayOnce)
{
isDelaying = true;
}
trackTime = 0.0;
}
}
if (m_sequence != null && isDelaying)
{
if (trackTime >= m_sequence.TrackDelayTime)
{
trackTime -= m_sequence.TrackDelayTime;
//Debug.Log("Ending delay of " + m_clipData.TrackDelayTime + " seconds.");
isDelaying = false;
lock (m_sequence.ClipsLockHandle)
StartedPlaying = m_sequence.Clips[currentClipIdx].m_clip;
m_sequence.TrackDelayTime = -1;
}
else
{
return;
}
}
//check for end of track and skip to next if needed
while (trackTime >= currentClipData.Length)
{
lock (m_sequence.ClipsLockHandle)
StoppedPlaying = m_sequence.Clips[currentClipIdx].m_clip;
if (m_sequence != null)
{
if (!isSynced && m_sequence.TrackDelayTime > 0f)
{
isDelaying = true;
m_outputNeedsMovedDelay = (float)(trackTime - lastTrackTime) + m_sequence.TrackDelayTime;
m_outputNeedsMoved = true;
//Debug.Log("Starting delay of " + m_clipData.TrackDelayTime + " seconds.");
trackTime -= currentClipData.Length;
currentClipIdx = NextClipIdx;
if (m_sequence.RandomizeVolume)
{
curVolumeMod = Helpers.GetRandom(m_sequence.MinMaxVolume);
}
else
{
curVolumeMod = 1f;
}
if (!isSynced && m_sequence.RandomizePlaybackSpeed)
{
curPlaybackSpeedMod = Helpers.GetRandom(m_sequence.MinMaxPlaybackSpeed);
}
else
{
curPlaybackSpeedMod = 1f;
}
//reset our property values to get a new value for next check
NextClipIdx = -1;
crossFadeFlag = false;
}
else
{
if (isSynced && NextClipIdx < 0) //can't repeat so make sure we don't try to go past the end
{
return;
}
m_outputNeedsMovedDelay = (float)(trackTime - lastTrackTime);
m_outputNeedsMoved = true;
float crossFadeValue = Mathf.Min(m_sequence.m_crossFade, Mathf.Min(currentClipData.Length / 2.0f, RawClipData[NextClipIdx].Length / 2.0f));
trackTime -= currentClipData.Length - crossFadeValue;
currentClipIdx = NextClipIdx;
if (m_sequence.RandomizeVolume)
{
curVolumeMod = Helpers.GetRandom(m_sequence.MinMaxVolume);
}
else
{
curVolumeMod = 1f;
}
if (!isSynced && m_sequence.RandomizePlaybackSpeed)
{
curPlaybackSpeedMod = Helpers.GetRandom(m_sequence.MinMaxPlaybackSpeed);
}
else
{
curPlaybackSpeedMod = 1f;
}
//reset our property values to get a new value for next check
NextClipIdx = -1;
m_sequence.TrackDelayTime = -1f;
if (!crossFadeFlag)
{
lock (m_sequence.ClipsLockHandle)
StartedPlaying = m_sequence.Clips[currentClipIdx].m_clip;
}
else
{
crossFadeFlag = false;
}
}
}
else //end of track but we don't have any base data
{
return;
}
}
//see if we need to do a cross-fade
if (m_sequence != null && m_sequence.m_forceMuted)
{
return;
}
if (!IsPlayOnce && ((isSynced && NextClipIdx >= 0) || m_sequence.TrackDelayTime <= 0f) && m_sequence != null && m_sequence.m_crossFade > 0f)
{
float crossFadeValue = Mathf.Min(m_sequence.m_crossFade, Mathf.Min(currentClipData.Length / 2.0f, RawClipData[NextClipIdx].Length / 2.0f)); //don't want cross-fade to last longer than half of either track.
float timeLeft = currentClipData.Length - (float)trackTime;
if (timeLeft <= crossFadeValue)
{
if (!crossFadeFlag)
{
lock (m_sequence.ClipsLockHandle)
StartedPlaying = m_sequence.Clips[NextClipIdx].m_clip;
crossFadeFlag = true;
}
float crossFadeTime = crossFadeValue - timeLeft;
float crossFadeAmount = (float)Helpers.Interpolate(crossFadeTime, 0.0, 1.0, crossFadeValue, true, true);
currentClipData.GetFrame(trackTime, CurVolume * (1f - crossFadeAmount) * volume, ret, startOffset, numChannels);
RawClipData[NextClipIdx].GetFrame(crossFadeTime, CurVolume * crossFadeAmount * volume, ret, startOffset, numChannels);
return;
}
else
{
crossFadeFlag = false;
}
}
//generate the data for this frame
float Fade = 1f;
if (!isSynced && !IsPlayOnce && m_sequence.TrackDelayTime > 0 && m_sequence != null && m_sequence.m_delayFadeTime > 0f) //no crossfade but we need to fade out to delay
{
float timeLeft = currentClipData.Length - (float)trackTime;
if (timeLeft <= m_sequence.m_delayFadeTime)
{
Fade = (timeLeft - m_sequence.m_delayFadeTime) / m_sequence.m_delayFadeTime;
}
}
currentClipData.GetFrame(trackTime, CurVolume * Fade * volume, ret, startOffset, numChannels);
}
