void tmr_Tick(object sender, EventArgs e)
{
y += 1f;
if (y >= img.Height)
{
y = -this.Height;
}
specValue++;
if (specValue > (customSpectrum.Count - 1))
{
specValue = 0;
}
soundChannel.getPosition(ref position, FMOD.TIMEUNIT.MS);
if (position >= 33500 && position <= 33500 + 2500)
{
soundChannel.setPosition(position + 2500, FMOD.TIMEUNIT.MS);
}
this.Invalidate();
}
public static void SetPlayPosition(int position)
{
if (IsPlaying())
{
FMODChannel.setPosition((uint)position, FMOD.TIMEUNIT.MS);
}
}
public static void SetPlayPosition(uint position)
{
if (channel == null)
{
return;
}
channel.setPosition(position, FMOD.TIMEUNIT.MS);
}
/// <summary>
/// Sets the position of the playing stream
/// </summary>
/// <param name="channel"></param>
/// <param name="position"></param>
private void SetPostion(uint position)
{
FMOD.RESULT result;
if (_channel != null)
{
//set position
result = _channel.setPosition(position, FMOD.TIMEUNIT.MS);
CheckError(result);
}
}
public override void Seek(ulong Millisecs)
{
if (m_bOpened && Millisecs <= m_nLength)
{
if (m_bPlaying)
{
if (m_FMODChannel != null)
{
m_FMODChannel.setPosition((uint)Millisecs, FMOD.TIMEUNIT.MS);
}
}
}
}
FMOD.Channel PlaySample(RenderParams rp, RenderCanvas canvas, List <FMOD.DSP> dspList)
{
FMOD.Channel channel = null;
FMOD.RESULT r = MusicEngine.AudioEngine.playSound(FMOD.CHANNELINDEX.FREE, _sound, true, ref channel);
if (r == FMOD.RESULT.OK && channel != null)
{
// set regular play properties
AdaptChannelSettings(channel, rp, canvas);
// set play position
uint tMs = (uint)Math.Round(rp.Time * 1000.0);
if (tMs > 0)
{ // only set position if there is a need
r = channel.setPosition(tMs, FMOD.TIMEUNIT.MS);
#if DEBUG
Util.Log(" setPos(" + tMs + ")");
#endif
}
// set optional DSP unit(s) on channel
if (r == FMOD.RESULT.OK)
{
FMOD.DSPConnection conn = null;
foreach (FMOD.DSP d in dspList)
{
r = channel.addDSP(d, ref conn); // TODO errcheck
}
// go - start playing
if (r == FMOD.RESULT.OK)
{
r = channel.setPaused(false);
}
}
} // if
Util.ERRCHECK(r);
return(channel);
}
public static void Reset()
{
Channel.setPosition(0, FMOD.TIMEUNIT.MS);
}
public override void Stop()
{
FMOD_Audio.CheckFMODResult(mChannel.setPaused(true));
FMOD_Audio.CheckFMODResult(mChannel.setPosition(0, FMOD.TIMEUNIT.MS));
}
/**
* called when this sample/effect should render itself, possibly spawning a new
* playing instance or modifying an already playing instance.
*/
internal void Render(RenderParams rp, RenderCanvas canvas, List <FMOD.DSP> dspList, int audioRepeats)
{
#if DEBUG
Util.Log("Render HID=" + rp.HierarchyID + " T=" + Math.Round(rp.Time, 3) + " AbsT=" + Math.Round(rp.AbsTime, 3) + " A=" + Math.Round(rp.Ampl, 3) + "\n");
#endif
// check if duration is not exceeded
if (rp.Time > _soundDuration * ((double)audioRepeats))
{
return;
}
bool wasPlaying = _nowPlayingList.ContainsKey(rp.HierarchyID);
FMOD.Channel channel = null;
FMOD.RESULT r;
if (wasPlaying)
{
channel = _nowPlayingList[rp.HierarchyID];
// check if still playing now
bool isPlayingNow = false;
r = channel.isPlaying(ref isPlayingNow);
//Util.ERRCHECK(r); // TODO is this needed?
if (isPlayingNow)
{ // if so, adapt sample properties only.
AdaptChannelSettings(channel, rp, canvas);
// check playing time
uint playPosMs = 0;
int idealPlayPosMs = (int)Math.Round(rp.Time * 1000.0);
channel.getPosition(ref playPosMs, FMOD.TIMEUNIT.MS);
if (Math.Abs(((int)playPosMs) - idealPlayPosMs) > 5000 && idealPlayPosMs >= 0) // FIXME specify error margin better, somewhere? configurable per sample?
{
//FIXME HACK enable tracking when needed !!! below.
channel.setPosition((uint)idealPlayPosMs, FMOD.TIMEUNIT.MS);
playPosMs = (uint)idealPlayPosMs;
}
// store current pos on canvas
if (canvas.TimeMarker == 0)
{
canvas.TimeMarker = ((double)playPosMs) / 1000.0;
}
}
else
{ // if not anymore, remove from list
_nowPlayingList.Remove(rp.HierarchyID);
}
}
else
{ // was not playing but should be rendered - hence, initiate playing now
if (rp.Time < _soundDuration - 0.050) // extra safety margin - do not start if close to end. TODO configurable time?
{
channel = PlaySample(rp, canvas, dspList);
channel.setLoopCount(audioRepeats - 1);
if (channel != null)
{
#if DEBUG
Util.Log("Play HID=" + rp.HierarchyID + " T=" + Math.Round(rp.Time, 3) + " AbsT=" + Math.Round(rp.AbsTime, 3) + " A=" + Math.Round(rp.Ampl, 3) + "\n");
#endif
// store playing sound in the table
_nowPlayingList[rp.HierarchyID] = channel;
}
else
{
Util.Log("Play FAILED rp.H-ID=" + rp.HierarchyID + " rp.Time=" + rp.Time + " rp.AbsTime=" + rp.AbsTime + "\n");
}
}
}
}
