Ejemplos de gst_dshowvideodec_flush en C++ (Cpp)

Ejemplo n.º 1

static gboolean
gst_dshowvideodec_sink_event (GstPad * pad, GstEvent * event)
{
  gboolean ret = TRUE;
  GstDshowVideoDec *vdec = (GstDshowVideoDec *) gst_pad_get_parent (pad);

  switch (GST_EVENT_TYPE (event)) {
    case GST_EVENT_FLUSH_STOP:
      gst_dshowvideodec_flush (vdec);
      ret = gst_pad_event_default (pad, event);
      break;
    case GST_EVENT_NEWSEGMENT:
    {
      GstFormat format;
      gdouble rate;
      gint64 start, stop, time;
      gboolean update;

      gst_event_parse_new_segment (event, &update, &rate, &format, &start,
          &stop, &time);

      /* save the new segment in our local current segment */
      gst_segment_set_newsegment (vdec->segment, update, rate, format, start,
          stop, time);

      GST_CAT_DEBUG_OBJECT (dshowvideodec_debug, vdec,
          "new segment received => start=%" GST_TIME_FORMAT " stop=%"
          GST_TIME_FORMAT, GST_TIME_ARGS (vdec->segment->start),
          GST_TIME_ARGS (vdec->segment->stop));

      if (update) {
        GST_CAT_DEBUG_OBJECT (dshowvideodec_debug, vdec,
            "closing current segment flushing..");
        gst_dshowvideodec_flush (vdec);
      }

      ret = gst_pad_event_default (pad, event);
      break;
    }
    default:
      ret = gst_pad_event_default (pad, event);
      break;
  }

  gst_object_unref (vdec);

  return ret;
}

Ejemplo n.º 2

Archivo: gstdshowvideodec.cpp Proyecto: Lachann/gst-plugins-bad

static GstFlowReturn
gst_dshowvideodec_chain (GstPad * pad, GstBuffer * buffer)
{
  GstDshowVideoDec *vdec = (GstDshowVideoDec *) gst_pad_get_parent (pad);
  bool discont = FALSE;
  GstClockTime stop;

  if (!vdec->setup) {
    /* we are not setup */
    GST_WARNING_OBJECT (vdec, "Decoder not set up, failing");
    vdec->last_ret = GST_FLOW_FLUSHING;
    goto beach;
  }

  if (GST_FLOW_IS_FATAL (vdec->last_ret)) {
    GST_DEBUG_OBJECT (vdec, "last decoding iteration generated a fatal error "
        "%s", gst_flow_get_name (vdec->last_ret));
    goto beach;
  }

  /* check if duration is valid and use duration only when it's valid
     /* because dshow is not decoding frames having stop smaller than start */
  if (GST_BUFFER_DURATION_IS_VALID (buffer)) {
    stop = GST_BUFFER_TIMESTAMP (buffer) + GST_BUFFER_DURATION (buffer);
  } else {
    stop = GST_BUFFER_TIMESTAMP (buffer);
  }

  GST_CAT_LOG_OBJECT (dshowvideodec_debug, vdec,
      "chain (size %d)=> pts %" GST_TIME_FORMAT " stop %" GST_TIME_FORMAT,
      GST_BUFFER_SIZE (buffer), GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)),
      GST_TIME_ARGS (stop));

  /* if the incoming buffer has discont flag set => flush decoder data */
  if (buffer && GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT)) {
    GST_CAT_DEBUG_OBJECT (dshowvideodec_debug, vdec,
        "this buffer has a DISCONT flag (%" GST_TIME_FORMAT "), flushing",
        GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)));
    gst_dshowvideodec_flush (vdec);
    discont = TRUE;
  }

  /* push the buffer to the directshow decoder */
  vdec->fakesrc->GetOutputPin()->PushBuffer(
      GST_BUFFER_DATA (buffer), GST_BUFFER_TIMESTAMP (buffer), stop,
      GST_BUFFER_SIZE (buffer), discont);

beach:
  gst_buffer_unref (buffer);
  gst_object_unref (vdec);

  return vdec->last_ret;
}