diff options
Diffstat (limited to 'src/multimedia/audio/qaudiooutput.cpp')
| -rw-r--r-- | src/multimedia/audio/qaudiooutput.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/multimedia/audio/qaudiooutput.cpp b/src/multimedia/audio/qaudiooutput.cpp index 371773c..cf3b79c 100644 --- a/src/multimedia/audio/qaudiooutput.cpp +++ b/src/multimedia/audio/qaudiooutput.cpp @@ -369,8 +369,17 @@ int QAudioOutput::notifyInterval() const } /*! - Returns the amount of audio data processed since start() + Returns the amount of audio data processed by the class since start() was called in microseconds. + + Note: The amount of audio data played can be determined by subtracting + the microseconds of audio data still in the systems audio buffer. + + \code + qint64 bytesInBuffer = bufferSize() - bytesFree(); + qint64 usInBuffer = (qint64)(1000000) * bytesInBuffer / ( channels() * sampleSize() / 8 ) / frequency(); + qint64 usPlayed = processedUSecs() - usInBuffer; + \endcode */ qint64 QAudioOutput::processedUSecs() const |