Exemplos de snd_seq_change_queue_tempo em C++ (Cpp)

Exemplo n.º 1

Arquivo: MidiAlsaSeq.cpp Projeto: AmeliaDeField/lmms-test

void MidiAlsaSeq::changeQueueTempo( bpm_t _bpm )
{
	m_seqMutex.lock();

	snd_seq_change_queue_tempo( m_seqHandle, m_queueID,
					60000000 / (int) _bpm, NULL );
	snd_seq_drain_output( m_seqHandle );

	m_seqMutex.unlock();
}

Exemplo n.º 2

Arquivo: MidiQueue.cpp Projeto: dissabte/smidi

void MidiQueue::changeTempo(double bpm)
{
	const unsigned int tempo = convertBPMToMicroseconds(bpm);
	snd_seq_change_queue_tempo(_sequencer, _id, tempo, NULL);
	int result = snd_seq_drain_output(_sequencer);
	if (result < 0)
	{
		std::cerr << "MidiQueue::changeTempo error:" << snd_strerror(result) << std::endl;
	}
}