size_t PlayListStep::GetPosition() const
{
int msPerFrame = 1000;
PlayListItem* timesource = GetTimeSource(msPerFrame);
size_t frameMS;
if (timesource != nullptr)
{
frameMS = timesource->GetPositionMS();
}
else
{
auto now = wxGetUTCTimeMillis();
if (_pause == 0)
{
frameMS = (now - _startTime).ToLong();
}
else
{
frameMS = (now - _startTime - (now - _pause)).ToLong();
}
}
return frameMS;
}
bool PlayListStep::Frame(wxByte* buffer, size_t size)
{
int msPerFrame = 1000;
PlayListItem* timesource = GetTimeSource(msPerFrame);
if (msPerFrame == 0)
{
msPerFrame = 50;
}
size_t frameMS;
if (timesource != nullptr)
{
frameMS = timesource->GetPositionMS();
}
else
{
frameMS = (wxGetUTCTimeMillis() - _startTime).ToLong();
}
for (auto it = _items.begin(); it != _items.end(); ++it)
{
(*it)->Frame(buffer, size, frameMS, msPerFrame);
}
if (timesource != nullptr)
{
return timesource->Done();
}
else
{
return frameMS >= GetLengthMS();
}
}