JITTER
(buffer->Header()->start_time - JITTER))
(buffer->Header()->start_time + JITTER)))) {
result = (expectedTime - JITTER < info->time
&& info->time < expectedTime + JITTER);
CHK(time > -JITTER && time < JITTER);
CHK(time > -JITTER && time < JITTER);
CHK(time > -JITTER && time < JITTER);
CHK(time > -JITTER && time < JITTER);
CHK(time > -JITTER && time < JITTER);
CHK(time > -JITTER && time < JITTER);
CHK(actualDuration > duration - JITTER
&& actualDuration < duration + JITTER);