it look like qaudiorecorder bug
in qaudioinput_alsa_p.cpp
buffer_time = 100000;
period_time = 20000;
but chunks = 8
if ( !fatal ) {
err = snd_pcm_hw_params_set_buffer_time_near(handle, hwparams,
&buffer_time, &dir);
if ( err < 0 ) {
fatal = true;
errMessage = QString::fromLatin1("QAudioInput:
snd_pcm_hw_params_set_buffer_time_near: err = %1").arg(err);
}
}
if ( !fatal ) {
err = snd_pcm_hw_params_set_period_time_near(handle, hwparams,
&period_time, &dir);
if ( err < 0 ) {
fatal = true;
errMessage = QString::fromLatin1("QAudioInput:
snd_pcm_hw_params_set_period_time_near: err = %1").arg(err);
}
}
if ( !fatal ) {
err = snd_pcm_hw_params_set_periods_near(handle, hwparams,
&chunks, &dir);
if ( err < 0 ) {
fatal = true;
errMessage = QString::fromLatin1("QAudioInput:
snd_pcm_hw_params_set_periods_near: err = %1").arg(err);
}
}
if ( !fatal ) {
err = snd_pcm_hw_params(handle, hwparams);
if ( err < 0 ) {
fatal = true;
errMessage = QString::fromLatin1("QAudioInput:
snd_pcm_hw_params: err = %1").arg(err);
}
}
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https://bugs.launchpad.net/bugs/1433563
Title:
QAudioRecorder recording hangs
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