C++ (Cpp) gst_event_new_qos примеры использования

Пример #1

Файл: gsttffilter.c Проект: Sunmonds/wine

static HRESULT WINAPI Gstreamer_transform_QOS(TransformFilter *iface, IBaseFilter *sender, Quality qm) {
    GstTfImpl *This = (GstTfImpl*)iface;
    REFERENCE_TIME late = qm.Late;
    if (qm.Late < 0 && -qm.Late > qm.TimeStamp)
        late = -qm.TimeStamp;
    gst_pad_push_event(This->my_sink, gst_event_new_qos(1000. / qm.Proportion, late * 100, qm.TimeStamp * 100));
    return QualityControlImpl_Notify((IQualityControl*)&iface->qcimpl, sender, qm);
}

Пример #2

Файл: rbgst-event.c Проект: masaakiaoyagi/ruby-gnome2

static VALUE
qos_initialize(VALUE self, VALUE portion, VALUE clockdiff, VALUE timestamp)
{
    GstEvent *event;

    event = gst_event_new_qos(NUM2DBL(portion), NUM2LL(clockdiff),
                              NUM2ULL(timestamp));

    G_INITIALIZE(self, event);
    return Qnil;
}

Пример #3

Файл: gsttffilter.c Проект: AmesianX/wine

static HRESULT WINAPI Gstreamer_transform_QOS(TransformFilter *iface, IBaseFilter *sender, Quality qm)
{
    GstTfImpl *This = (GstTfImpl*)iface;
    REFERENCE_TIME late = qm.Late;

    TRACE("%p %p qm\n", This, sender);

    mark_wine_thread();

    if (qm.Late < 0 && -qm.Late > qm.TimeStamp)
        late = -qm.TimeStamp;
    gst_pad_push_event(This->my_sink, gst_event_new_qos(late <= 0 ? GST_QOS_TYPE_OVERFLOW : GST_QOS_TYPE_UNDERFLOW, 1000. / qm.Proportion, late * 100, qm.TimeStamp * 100));
    return TransformFilterImpl_Notify(iface, sender, qm);
}

Пример #4

Файл: gststreamsynchronizer.c Проект: elisescu/gst-plugins-base

/* srcpad functions */
static gboolean
gst_stream_synchronizer_src_event (GstPad * pad, GstObject * parent,
    GstEvent * event)
{
  GstStreamSynchronizer *self = GST_STREAM_SYNCHRONIZER (parent);
  GstPad *opad;
  gboolean ret = FALSE;

  GST_LOG_OBJECT (pad, "Handling event %s: %" GST_PTR_FORMAT,
      GST_EVENT_TYPE_NAME (event), event);

  switch (GST_EVENT_TYPE (event)) {
    case GST_EVENT_QOS:{
      gdouble proportion;
      GstClockTimeDiff diff;
      GstClockTime timestamp;
      gint64 running_time_diff = -1;
      GstStream *stream;

      gst_event_parse_qos (event, NULL, &proportion, &diff, &timestamp);
      gst_event_unref (event);

      GST_STREAM_SYNCHRONIZER_LOCK (self);
      stream = gst_pad_get_element_private (pad);
      if (stream)
        running_time_diff = stream->segment.base;
      GST_STREAM_SYNCHRONIZER_UNLOCK (self);

      if (running_time_diff == -1) {
        GST_WARNING_OBJECT (pad, "QOS event before group start");
        goto out;
      }
      if (timestamp < running_time_diff) {
        GST_DEBUG_OBJECT (pad, "QOS event from previous group");
        goto out;
      }

      GST_LOG_OBJECT (pad,
          "Adjusting QOS event: %" GST_TIME_FORMAT " - %" GST_TIME_FORMAT " = %"
          GST_TIME_FORMAT, GST_TIME_ARGS (timestamp),
          GST_TIME_ARGS (running_time_diff),
          GST_TIME_ARGS (timestamp - running_time_diff));

      timestamp -= running_time_diff;

      /* That case is invalid for QoS events */
      if (diff < 0 && -diff > timestamp) {
        GST_DEBUG_OBJECT (pad, "QOS event from previous group");
        ret = TRUE;
        goto out;
      }

      event =
          gst_event_new_qos (GST_QOS_TYPE_UNDERFLOW, proportion, diff,
          timestamp);
      break;
    }
    default:
      break;
  }

  opad = gst_stream_get_other_pad_from_pad (self, pad);
  if (opad) {
    ret = gst_pad_push_event (opad, event);
    gst_object_unref (opad);
  }

out:
  return ret;
}