IQ Tool playback slider runaway when the DSP is stopped

[vladisslav2011]

The IQ tool playback slider keeps running even when the DSP is stopped. After DSP restart it does not return to correct position. The time display starts showing wrong time too.

Steps to reproduce:

1. Start IQ file playback
2. Before playback finishes, stop the DSP
3. Wait some time
4. Start the DSP

Expected results:
The DSP stops, the slider stops. IQ file playback pauses. After restart, the file continues to play from the position, at which it was stopped. The slider continues to follow the actual position. The time counter shows correct elapsed time.

Observed results:
The DSP stops, the slider continues to run. After restart, the file continues to play from the position, at which it was stopped. The slider does not show the correct position. The time counter shows incorrect elapsed time.

+If the file playback does not start immediately due to buffering, the slider (and time display) do not show actual played position straight from start. Seeking the file to some previous point resolves this for one time.