Snap for 5422062 from 6ac6f948 to qt-release

    return ret;

}

// Read offset for the input positional timestamp from a property.

// This is to workaround apparent inaccuracies in the timing info that

// are causing glitches.

// Read offset for the positional timestamp from a persistent vendor property.

// This is to workaround apparent inaccuracies in the timing information that

// is used by the AAudio timing model. The inaccuracies can cause glitches.

static int64_t in_get_mmap_time_offset() {

    // Roughly 100 usec is needed on some devices to cover inaccuracy in DSP.

    // This should be set in a property. But I cannot read the property!

    // So I am setting the offset here to 101 as a test.

    const int32_t kDefaultOffsetMicros = 101; // should be zero if no bug

    // FIXME - why is the property not being read?! The default is used.

    const int32_t kDefaultOffsetMicros = 0;

    int32_t mmap_time_offset_micros = property_get_int32(

            "persist.audio.in_mmap_delay_micros", kDefaultOffsetMicros);

    ALOGI("in_get_mmap_time_offset set to %d micros", mmap_time_offset_micros);

        ALOGE("%s: %s", __func__, pcm_get_error(in->pcm));

        goto exit;

    }

    position->time_nanoseconds = audio_utils_ns_from_timespec(&ts);

    position->time_nanoseconds += in->mmap_time_offset_nanos;

    position->time_nanoseconds = audio_utils_ns_from_timespec(&ts)

            + in->mmap_time_offset_nanos;

exit:

    pthread_mutex_unlock(&in->lock);