diff options
Diffstat (limited to 'src/multimedia/audio/qaudioinput_win32_p.cpp')
-rw-r--r-- | src/multimedia/audio/qaudioinput_win32_p.cpp | 41 |
1 files changed, 36 insertions, 5 deletions
diff --git a/src/multimedia/audio/qaudioinput_win32_p.cpp b/src/multimedia/audio/qaudioinput_win32_p.cpp index 3f6e778..225d2f1 100644 --- a/src/multimedia/audio/qaudioinput_win32_p.cpp +++ b/src/multimedia/audio/qaudioinput_win32_p.cpp @@ -214,13 +214,44 @@ bool QAudioInputPrivate::open() qDebug()<<now.second()<<"s "<<now.msec()<<"ms :open()"; #endif header = 0; - if(buffer_size == 0) { - // Default buffer size, 200ms, default period size is 40ms - buffer_size = settings.frequency()*settings.channels()*(settings.sampleSize()/8)*0.2; - period_size = buffer_size/5; + period_size = 0; + + if (!settings.isValid()) { + qWarning("QAudioInput: open error, invalid format."); + } else if (settings.channels() <= 0) { + qWarning("QAudioInput: open error, invalid number of channels (%d).", + settings.channels()); + } else if (settings.sampleSize() <= 0) { + qWarning("QAudioInput: open error, invalid sample size (%d).", + settings.sampleSize()); + } else if (settings.frequency() < 8000 || settings.frequency() > 48000) { + qWarning("QAudioInput: open error, frequency out of range (%d).", settings.frequency()); + } else if (buffer_size == 0) { + + buffer_size + = (settings.frequency() + * settings.channels() + * settings.sampleSize() +#ifndef Q_OS_WINCE // Default buffer size, 200ms, default period size is 40ms + + 39) / 40; + period_size = buffer_size / 5; + } else { + period_size = buffer_size / 5; +#else // For wince reduce size to 40ms for buffer size and 20ms period + + 199) / 200; + period_size = buffer_size / 2; } else { - period_size = buffer_size/5; + period_size = buffer_size / 2; +#endif } + + if (period_size == 0) { + errorState = QAudio::OpenError; + deviceState = QAudio::StoppedState; + emit stateChanged(deviceState); + return false; + } + timeStamp.restart(); elapsedTimeOffset = 0; wfx.nSamplesPerSec = settings.frequency(); |