C++ (Cpp) gst_buffer_list_make_writableの例

コード例 #1

ファイル: gstrtpmux.c プロジェクト: a-martynovich/gst-plugins-good

static GstFlowReturn
gst_rtp_mux_chain_list (GstPad * pad, GstObject * parent,
    GstBufferList * bufferlist)
{
  GstRTPMux *rtp_mux;
  GstFlowReturn ret;
  GstRTPMuxPadPrivate *padpriv;
  struct BufferListData bd;

  rtp_mux = GST_RTP_MUX (parent);

  GST_OBJECT_LOCK (rtp_mux);

  padpriv = gst_pad_get_element_private (pad);
  if (!padpriv) {
    GST_OBJECT_UNLOCK (rtp_mux);
    ret = GST_FLOW_NOT_LINKED;
    gst_buffer_list_unref (bufferlist);
    goto out;
  }

  bd.rtp_mux = rtp_mux;
  bd.padpriv = padpriv;
  bd.drop = FALSE;

  bufferlist = gst_buffer_list_make_writable (bufferlist);
  gst_buffer_list_foreach (bufferlist, process_list_item, &bd);

  GST_OBJECT_UNLOCK (rtp_mux);

  if (bd.drop) {
    gst_buffer_list_unref (bufferlist);
    ret = GST_FLOW_OK;
  } else {
    ret = gst_pad_push_list (rtp_mux->srcpad, bufferlist);
  }

out:

  return ret;
}

コード例 #2

ファイル: gstdtlsdec.c プロジェクト: ramaxlo/gst-plugins-bad

static GstFlowReturn
sink_chain_list (GstPad * pad, GstObject * parent, GstBufferList * list)
{
  GstDtlsDec *self = GST_DTLS_DEC (parent);
  GstFlowReturn ret = GST_FLOW_OK;
  GstPad *other_pad;

  list = gst_buffer_list_make_writable (list);
  gst_buffer_list_foreach (list, process_buffer_from_list, self);

  if (gst_buffer_list_length (list) == 0) {
    GST_DEBUG_OBJECT (self, "Not produced any buffers");
    gst_buffer_list_unref (list);

    return GST_FLOW_OK;
  }

  g_mutex_lock (&self->src_mutex);
  other_pad = self->src;
  if (other_pad)
    gst_object_ref (other_pad);
  g_mutex_unlock (&self->src_mutex);

  if (other_pad) {
    GST_LOG_OBJECT (self, "decoded buffer list with length %u, pushing",
        gst_buffer_list_length (list));
    ret = gst_pad_push_list (other_pad, list);
    gst_object_unref (other_pad);
  } else {
    GST_LOG_OBJECT (self, "dropped buffer list with length %d, not linked",
        gst_buffer_list_length (list));
    gst_buffer_list_unref (list);
  }

  return ret;
}

コード例 #3

ファイル: gstrtpmux.c プロジェクト: ConfusedReality/pkg_multimedia_gst-plugins-good

static GstFlowReturn
gst_rtp_mux_chain_list (GstPad * pad, GstObject * parent,
    GstBufferList * bufferlist)
{
  GstRTPMux *rtp_mux;
  GstFlowReturn ret;
  GstRTPMuxPadPrivate *padpriv;
  gboolean changed = FALSE;
  struct BufferListData bd;

  rtp_mux = GST_RTP_MUX (parent);

  if (gst_pad_check_reconfigure (rtp_mux->srcpad)) {
    GstCaps *current_caps = gst_pad_get_current_caps (pad);

    if (!gst_rtp_mux_setcaps (pad, rtp_mux, current_caps)) {
      ret = GST_FLOW_NOT_NEGOTIATED;
      gst_buffer_list_unref (bufferlist);
      goto out;
    }
    gst_caps_unref (current_caps);
  }

  GST_OBJECT_LOCK (rtp_mux);

  padpriv = gst_pad_get_element_private (pad);
  if (!padpriv) {
    GST_OBJECT_UNLOCK (rtp_mux);
    ret = GST_FLOW_NOT_LINKED;
    gst_buffer_list_unref (bufferlist);
    goto out;
  }

  bd.rtp_mux = rtp_mux;
  bd.padpriv = padpriv;
  bd.drop = FALSE;

  bufferlist = gst_buffer_list_make_writable (bufferlist);
  gst_buffer_list_foreach (bufferlist, process_list_item, &bd);

  if (!bd.drop && pad != rtp_mux->last_pad) {
    changed = TRUE;
    g_clear_object (&rtp_mux->last_pad);
    rtp_mux->last_pad = g_object_ref (pad);
  }

  GST_OBJECT_UNLOCK (rtp_mux);

  if (changed)
    gst_pad_sticky_events_foreach (pad, resend_events, rtp_mux);

  if (bd.drop) {
    gst_buffer_list_unref (bufferlist);
    ret = GST_FLOW_OK;
  } else {
    ret = gst_pad_push_list (rtp_mux->srcpad, bufferlist);
  }

out:

  return ret;
}