C++ (Cpp) gst_aspect_ratio_transform_structure примеры использования

Пример #1

Файл: gstaspectratiocrop.c Проект: lubing521/gst-embedded-builder

static gboolean
gst_aspect_ratio_crop_set_caps (GstAspectRatioCrop * aspect_ratio_crop,
    GstCaps * caps)
{
  GstPad *peer_pad;
  GstStructure *structure;
  gboolean ret;

  g_mutex_lock (&aspect_ratio_crop->crop_lock);

  structure = gst_caps_get_structure (caps, 0);
  gst_aspect_ratio_transform_structure (aspect_ratio_crop, structure, NULL,
      TRUE);
  peer_pad =
      gst_element_get_static_pad (GST_ELEMENT (aspect_ratio_crop->videocrop),
      "sink");
  ret = gst_pad_set_caps (peer_pad, caps);
  gst_object_unref (peer_pad);
  g_mutex_unlock (&aspect_ratio_crop->crop_lock);
  return ret;
}

Пример #2

Файл: gstaspectratiocrop.c Проект: ChinnaSuhas/ossbuild

static GstCaps *
gst_aspect_ratio_crop_transform_caps (GstAspectRatioCrop * aspect_ratio_crop,
    GstCaps * caps)
{
  GstCaps *transform;
  gint size, i;

  transform = gst_caps_new_empty ();

  size = gst_caps_get_size (caps);

  for (i = 0; i < size; i++) {
    GstStructure *s;
    GstStructure *trans_s;

    s = gst_caps_get_structure (caps, i);

    gst_aspect_ratio_transform_structure (aspect_ratio_crop, s, &trans_s,
        FALSE);
    gst_caps_append_structure (transform, trans_s);
  }

  return transform;
}