pa_stream_get_time

Return the current playback/recording time. This is based on the * data in the timing info structure returned by * pa_stream_get_timing_info(). The returned time is in the sound card * clock domain, which usually runs at a slightly different rate than * the system clock. * * This function will usually only return new data if a timing info * update has been received. Only if timing interpolation has been * requested (PA_STREAM_INTERPOLATE_TIMING) the data from the last * timing update is used for an estimation of the current * playback/recording time based on the local time that passed since * the timing info structure has been acquired. * * The time value returned by this function is guaranteed to increase * monotonically (the returned value is always greater * or equal to the value returned by the last call). This behaviour * can be disabled by using PA_STREAM_NOT_MONOTONIC. This may be * desirable to better deal with bad estimations of transport * latencies, but may have strange effects if the application is not * able to deal with time going 'backwards'. * * The time interpolator activated by PA_STREAM_INTERPOLATE_TIMING * favours 'smooth' time graphs over accurate ones to improve the * smoothness of UI operations that are tied to the audio clock. If * accuracy is more important to you, you might need to estimate your * timing based on the data from pa_stream_get_timing_info() yourself * or not work with interpolated timing at all and instead always * query the server side for the most up to date timing with * pa_stream_update_timing_info(). * * If no timing information has been * received yet this call will return -PA_ERR_NODATA. For more details * see pa_stream_get_timing_info(). * * Returns zero on success, negative on error.

version(linux)
extern (C)
int
pa_stream_get_time

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