C++ (Cpp) gst_iterator_new_single Examples

Example #1

File: gsttimecodewait.c Project: GrokImageCompression/gst-plugins-bad

static GstIterator *
gst_timecodewait_iterate_internal_links (GstPad * pad, GstObject * parent)
{
  GstIterator *it = NULL;
  GstPad *opad;
  GValue val = G_VALUE_INIT;
  GstTimeCodeWait *self = GST_TIMECODEWAIT (parent);

  if (self->asinkpad == pad)
    opad = gst_object_ref (self->asrcpad);
  else if (self->asrcpad == pad)
    opad = gst_object_ref (self->asinkpad);
  else if (self->vsinkpad == pad)
    opad = gst_object_ref (self->vsrcpad);
  else if (self->vsrcpad == pad)
    opad = gst_object_ref (self->vsinkpad);
  else
    goto out;

  g_value_init (&val, GST_TYPE_PAD);
  g_value_set_object (&val, opad);
  it = gst_iterator_new_single (GST_TYPE_PAD, &val);
  g_value_unset (&val);

  gst_object_unref (opad);

out:
  return it;
}

Example #2

File: gstrtpssrcdemux.c Project: DylanZA/gst-plugins-good

static GstIterator *
gst_rtp_ssrc_demux_iterate_internal_links_src (GstPad * pad, GstObject * parent)
{
    GstRtpSsrcDemux *demux;
    GstPad *otherpad = NULL;
    GstIterator *it = NULL;
    GSList *current;

    demux = GST_RTP_SSRC_DEMUX (parent);

    GST_PAD_LOCK (demux);
    for (current = demux->srcpads; current; current = g_slist_next (current)) {
        GstRtpSsrcDemuxPad *dpad = (GstRtpSsrcDemuxPad *) current->data;

        if (pad == dpad->rtp_pad) {
            otherpad = demux->rtp_sink;
            break;
        } else if (pad == dpad->rtcp_pad) {
            otherpad = demux->rtcp_sink;
            break;
        }
    }
    if (otherpad) {
        GValue val = { 0, };

        g_value_init (&val, GST_TYPE_PAD);
        g_value_set_object (&val, otherpad);
        it = gst_iterator_new_single (GST_TYPE_PAD, &val);
        g_value_unset (&val);

    }
    GST_PAD_UNLOCK (demux);

    return it;
}

Example #3

File: gstvideoframe-audiolevel.c Project: 0p1pp1/gst-plugins-bad

static GstIterator *
gst_videoframe_audiolevel_iterate_internal_links (GstPad * pad,
    GstObject * parent)
{
  GstIterator *it = NULL;
  GstPad *opad;
  GValue val = { 0, };
  GstVideoFrameAudioLevel *self = GST_VIDEOFRAME_AUDIOLEVEL (parent);

  if (self->asinkpad == pad)
    opad = gst_object_ref (self->asrcpad);
  else if (self->asrcpad == pad)
    opad = gst_object_ref (self->asinkpad);
  else if (self->vsinkpad == pad)
    opad = gst_object_ref (self->vsrcpad);
  else if (self->vsrcpad == pad)
    opad = gst_object_ref (self->vsinkpad);
  else
    goto out;

  g_value_init (&val, GST_TYPE_PAD);
  g_value_set_object (&val, opad);
  it = gst_iterator_new_single (GST_TYPE_PAD, &val);
  g_value_unset (&val);

  gst_object_unref (opad);

out:
  return it;
}

Example #4

File: gstrtpssrcdemux.c Project: mrchapp/gst-plugins-good

static GstIterator *
gst_rtp_ssrc_demux_iterate_internal_links (GstPad * pad)
{
  GstRtpSsrcDemux *demux;
  GstPad *otherpad = NULL;
  GstIterator *it;
  GSList *current;

  demux = GST_RTP_SSRC_DEMUX (gst_pad_get_parent (pad));

  GST_PAD_LOCK (demux);
  for (current = demux->srcpads; current; current = g_slist_next (current)) {
    GstRtpSsrcDemuxPad *dpad = (GstRtpSsrcDemuxPad *) current->data;

    if (pad == demux->rtp_sink) {
      otherpad = dpad->rtp_pad;
      break;
    } else if (pad == demux->rtcp_sink) {
      otherpad = dpad->rtcp_pad;
    } else if (pad == dpad->rtp_pad) {
      otherpad = demux->rtp_sink;
      break;
    } else if (pad == dpad->rtcp_pad) {
      otherpad = demux->rtcp_sink;
      break;
    }
  }
  it = gst_iterator_new_single (GST_TYPE_PAD, otherpad,
      (GstCopyFunction) gst_object_ref, (GFreeFunc) gst_object_unref);
  GST_PAD_UNLOCK (demux);

  gst_object_unref (demux);
  return it;
}

Example #5

File: gstghostpad.c Project: PeterXu/gst-mobile

/**
 * gst_proxy_pad_iterate_internal_links_default:
 * @pad: the #GstPad to get the internal links of.
 * @parent: the parent of @pad or NULL
 *
 * Invoke the default iterate internal links function of the proxy pad.
 *
 * Returns: a #GstIterator of #GstPad, or NULL if @pad has no parent. Unref each
 * returned pad with gst_object_unref().
 */
GstIterator *
gst_proxy_pad_iterate_internal_links_default (GstPad * pad, GstObject * parent)
{
  GstIterator *res = NULL;
  GstPad *internal;
  GValue v = { 0, };

  g_return_val_if_fail (GST_IS_PROXY_PAD (pad), NULL);

  internal = GST_PROXY_PAD_INTERNAL (pad);
  g_value_init (&v, GST_TYPE_PAD);
  g_value_set_object (&v, internal);
  res = gst_iterator_new_single (GST_TYPE_PAD, &v);
  g_value_unset (&v);

  return res;
}

Example #6

File: gstinputselector.c Project: kanongil/gst-plugins-bad

/* strictly get the linked pad from the sinkpad. If the pad is active we return
 * the srcpad else we return NULL */
static GstIterator *
gst_selector_pad_iterate_linked_pads (GstPad * pad)
{
  GstInputSelector *sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
  GstPad *otherpad;
  GstIterator *it;

  otherpad = gst_input_selector_get_linked_pad (pad, TRUE);
  it = gst_iterator_new_single (GST_TYPE_PAD, otherpad,
      (GstCopyFunction) gst_object_ref, (GFreeFunc) gst_object_unref);

  if (otherpad)
    gst_object_unref (otherpad);
  gst_object_unref (sel);

  return it;
}

Example #7

File: gststreamsynchronizer.c Project: elisescu/gst-plugins-base

/* Generic pad functions */
static GstIterator *
gst_stream_synchronizer_iterate_internal_links (GstPad * pad,
    GstObject * parent)
{
  GstIterator *it = NULL;
  GstPad *opad;

  opad =
      gst_stream_get_other_pad_from_pad (GST_STREAM_SYNCHRONIZER (parent), pad);
  if (opad) {
    GValue value = { 0, };

    g_value_init (&value, GST_TYPE_PAD);
    g_value_set_object (&value, opad);
    it = gst_iterator_new_single (GST_TYPE_PAD, &value);
    g_value_unset (&value);
    gst_object_unref (opad);
  }

  return it;
}

Example #8

File: gstccextractor.c Project: 0p1pp1/gst-plugins-bad

static GstIterator *
gst_cc_extractor_iterate_internal_links (GstPad * pad, GstObject * parent)
{
  GstCCExtractor *filter = (GstCCExtractor *) parent;
  GstIterator *it = NULL;
  GstPad *opad = NULL;

  if (pad == filter->sinkpad)
    opad = filter->srcpad;
  else if (pad == filter->srcpad || pad == filter->captionpad)
    opad = filter->sinkpad;

  if (opad) {
    GValue value = { 0, };

    g_value_init (&value, GST_TYPE_PAD);
    g_value_set_object (&value, opad);
    it = gst_iterator_new_single (GST_TYPE_PAD, &value);
    g_value_unset (&value);
  }

  return it;
}

Example #9

File: gstsrtpdec.c Project: fanc999/gst-plugins-bad

static GstIterator *
gst_srtp_dec_iterate_internal_links (GstPad * pad, GstObject * parent,
    gboolean is_rtcp)
{
  GstSrtpDec *filter = GST_SRTP_DEC (parent);
  GstPad *otherpad = NULL;
  GstIterator *it = NULL;

  otherpad = (GstPad *) gst_pad_get_element_private (pad);

  if (otherpad) {
    GValue val = { 0 };

    g_value_init (&val, GST_TYPE_PAD);
    g_value_set_object (&val, otherpad);
    it = gst_iterator_new_single (GST_TYPE_PAD, &val);
    g_value_unset (&val);
  } else {
    GST_ELEMENT_ERROR (GST_ELEMENT_CAST (filter), CORE, PAD, (NULL),
        ("Unable to get linked pad"));
  }

  return it;
}