> When meet Overrun or Underrun, PA will increase watermark. Due to some > hardware limitation, the hw_ptr will not be updated in PA's request latency. > So there maybe some cases "faked overrun/underrun". Take capture for > example, when Pulseaudio was waken up to read new capture data from driver, > and find the "available" area is much more than the record space. Although > it's fast enough to read out all data in short time, PA regard that as > "overrun" and increase watermark/latency step by step, that's really > useless. > So attached patch used to avoid such case and only increase > watermark/latency in real "overrun" case. Humm, it's not clear what problem you are trying to solve and on what platform. Looks like a very old MRST firmware/driver? If your driver doesn't update the hw_ptr, then how can you know if this is a real or a fake overrun? -Pierre
