bool wxSoundFileStream::Stop()
{
if (m_state == wxSOUND_FILE_STOPPED)
return false;
if (!StopProduction())
return false;
m_prepared = false;
if (m_state == wxSOUND_FILE_RECORDING)
if (!FinishRecording()) {
m_state = wxSOUND_FILE_STOPPED;
return false;
}
if (m_input)
m_input->SeekI(0, wxFromStart);
if (m_output)
m_output->SeekO(0, wxFromStart);
m_state = wxSOUND_FILE_STOPPED;
return true;
}
wxSoundStreamESD::~wxSoundStreamESD()
{
#ifdef HAVE_ESD_H
if (!m_esd_stop)
StopProduction();
#endif // defined HAVE_ESD_H
}
bool wxSoundFileStream::Pause()
{
if (m_state == wxSOUND_FILE_PAUSED || m_state == wxSOUND_FILE_STOPPED)
return false;
if (!StopProduction())
return false;
m_oldstate = m_state;
m_state = wxSOUND_FILE_PAUSED;
return true;
}
// --------------------------------------------------------------------------
// StartProduction(): see wxSoundStream
// --------------------------------------------------------------------------
bool wxSoundStreamESD::StartProduction(int evt)
{
#ifndef HAVE_ESD_H
m_snderror = wxSOUND_INVDEV;
return false;
#else
wxSoundFormatPcm *pcm;
int flag = 0;
if (!m_esd_ok) {
m_snderror = wxSOUND_INVDEV;
return false;
}
if (!m_esd_stop)
StopProduction();
pcm = (wxSoundFormatPcm *)m_sndformat;
flag |= (pcm->GetBPS() == 16) ? ESD_BITS16 : ESD_BITS8;
flag |= (pcm->GetChannels() == 2) ? ESD_STEREO : ESD_MONO;
if ((evt & wxSOUND_OUTPUT) != 0) {
flag |= ESD_PLAY | ESD_STREAM;
m_fd_output = esd_play_stream(flag, pcm->GetSampleRate(), NULL,
MY_ESD_NAME);
}
if ((evt & wxSOUND_INPUT) != 0) {
flag |= ESD_RECORD | ESD_STREAM;
m_fd_input = esd_record_stream(flag, pcm->GetSampleRate(), NULL,
MY_ESD_NAME);
}
#ifdef __WXGTK__
if ((evt & wxSOUND_OUTPUT) != 0) {
m_tag_output = gdk_input_add(m_fd_output, GDK_INPUT_WRITE,
_wxSound_OSS_CBack, (gpointer)this);
}
if ((evt & wxSOUND_INPUT) != 0) {
m_tag_input = gdk_input_add(m_fd_input, GDK_INPUT_READ,
_wxSound_OSS_CBack, (gpointer)this);
}
#endif
m_esd_stop = false;
m_q_filled = false;
return true;
#endif // defined HAVE_ESD_H
}
bool wxSoundStreamOSS::StartProduction(int evt)
{
wxSoundFormatBase *old_frmt;
if (!m_oss_stop)
StopProduction();
old_frmt = m_sndformat->Clone();
if (!old_frmt) {
m_snderror = wxSOUND_MEMERROR;
return false;
}
if (evt == wxSOUND_OUTPUT)
m_fd = open(m_devname.mb_str(), O_WRONLY);
else if (evt == wxSOUND_INPUT)
m_fd = open(m_devname.mb_str(), O_RDONLY);
if (m_fd == -1) {
m_snderror = wxSOUND_INVDEV;
return false;
}
SetSoundFormat(*old_frmt);
delete old_frmt;
int trig;
if (evt == wxSOUND_OUTPUT) {
#ifdef __WXGTK__
m_tag = gdk_input_add(m_fd, GDK_INPUT_WRITE, _wxSound_OSS_CBack, (gpointer)this);
#endif
trig = PCM_ENABLE_OUTPUT;
} else {
#ifdef __WXGTK__
m_tag = gdk_input_add(m_fd, GDK_INPUT_READ, _wxSound_OSS_CBack, (gpointer)this);
#endif
trig = PCM_ENABLE_INPUT;
}
ioctl(m_fd, SNDCTL_DSP_SETTRIGGER, &trig);
m_oss_stop = false;
m_q_filled = false;
return true;
}
