Exemplos de GST_ASPECT_RATIO_CROP em C++ (Cpp)

Exemplo n.º 1

Arquivo: gstaspectratiocrop.c Projeto: ChinnaSuhas/ossbuild

static void
gst_aspect_ratio_crop_set_property (GObject * object, guint prop_id,
    const GValue * value, GParamSpec * pspec)
{
  GstAspectRatioCrop *aspect_ratio_crop;
  gboolean recheck = FALSE;

  aspect_ratio_crop = GST_ASPECT_RATIO_CROP (object);

  GST_OBJECT_LOCK (aspect_ratio_crop);
  switch (prop_id) {
    case ARG_ASPECT_RATIO_CROP:
      if (GST_VALUE_HOLDS_FRACTION (value)) {
        aspect_ratio_crop->ar_num = gst_value_get_fraction_numerator (value);
        aspect_ratio_crop->ar_denom =
            gst_value_get_fraction_denominator (value);
        recheck = (GST_PAD_CAPS (aspect_ratio_crop->sink) != NULL);
      }
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
  }
  GST_OBJECT_UNLOCK (aspect_ratio_crop);

  if (recheck) {
    gst_aspect_ratio_crop_set_caps (aspect_ratio_crop->sink,
        GST_PAD_CAPS (aspect_ratio_crop->sink));
  }
}

Exemplo n.º 2

Arquivo: gstaspectratiocrop.c Projeto: ChinnaSuhas/ossbuild

static GstCaps *
gst_aspect_ratio_crop_get_caps (GstPad * pad)
{
  GstPad *peer;
  GstAspectRatioCrop *aspect_ratio_crop;
  GstCaps *return_caps;

  aspect_ratio_crop = GST_ASPECT_RATIO_CROP (gst_pad_get_parent (pad));

  g_mutex_lock (aspect_ratio_crop->crop_lock);

  peer = gst_pad_get_peer (aspect_ratio_crop->sink);
  if (peer == NULL) {
    return_caps = gst_static_pad_template_get_caps (&src_template);
    gst_caps_ref (return_caps);
  } else {
    GstCaps *peer_caps;

    peer_caps = gst_pad_get_caps (peer);
    return_caps =
        gst_aspect_ratio_crop_transform_caps (aspect_ratio_crop, peer_caps);
    gst_caps_unref (peer_caps);
    gst_object_unref (peer);
  }

  g_mutex_unlock (aspect_ratio_crop->crop_lock);
  gst_object_unref (aspect_ratio_crop);

  return return_caps;
}

Exemplo n.º 3

Arquivo: gstaspectratiocrop.c Projeto: lubing521/gst-embedded-builder

static gboolean
gst_aspect_ratio_crop_sink_event (GstPad * pad, GstObject * parent,
    GstEvent * evt)
{
  gboolean ret;
  GstAspectRatioCrop *aspect_ratio_crop = GST_ASPECT_RATIO_CROP (parent);

  ret =
      aspect_ratio_crop->sinkpad_old_eventfunc (pad, parent,
      gst_event_ref (evt));

  switch (GST_EVENT_TYPE (evt)) {
    case GST_EVENT_CAPS:
    {
      GstCaps *caps;

      gst_event_parse_caps (evt, &caps);
      ret = gst_aspect_ratio_crop_set_caps (aspect_ratio_crop, caps);
      break;
    }
    default:
      break;
  }
  gst_event_unref (evt);

  return ret;
}

Exemplo n.º 4

Arquivo: gstaspectratiocrop.c Projeto: lubing521/gst-embedded-builder

static void
gst_aspect_ratio_crop_finalize (GObject * object)
{
  GstAspectRatioCrop *aspect_ratio_crop;

  aspect_ratio_crop = GST_ASPECT_RATIO_CROP (object);

  g_mutex_clear (&aspect_ratio_crop->crop_lock);

  G_OBJECT_CLASS (parent_class)->finalize (object);
}

Exemplo n.º 5

Arquivo: gstaspectratiocrop.c Projeto: ChinnaSuhas/ossbuild

static void
gst_aspect_ratio_crop_get_property (GObject * object, guint prop_id,
    GValue * value, GParamSpec * pspec)
{
  GstAspectRatioCrop *aspect_ratio_crop;

  aspect_ratio_crop = GST_ASPECT_RATIO_CROP (object);

  GST_OBJECT_LOCK (aspect_ratio_crop);
  switch (prop_id) {
    case ARG_ASPECT_RATIO_CROP:
      gst_value_set_fraction (value, aspect_ratio_crop->ar_num,
          aspect_ratio_crop->ar_denom);
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
  }
  GST_OBJECT_UNLOCK (aspect_ratio_crop);
}

Exemplo n.º 6

Arquivo: gstaspectratiocrop.c Projeto: ChinnaSuhas/ossbuild

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

  aspect_ratio_crop = GST_ASPECT_RATIO_CROP (gst_pad_get_parent (pad));

  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);
  gst_object_unref (aspect_ratio_crop);
  g_mutex_unlock (aspect_ratio_crop->crop_lock);
  return ret;
}

Exemplo n.º 7

Arquivo: gstaspectratiocrop.c Projeto: lubing521/gst-embedded-builder

static GstCaps *
gst_aspect_ratio_crop_get_caps (GstPad * pad, GstCaps * filter)
{
  GstPad *peer;
  GstAspectRatioCrop *aspect_ratio_crop;
  GstCaps *return_caps;

  aspect_ratio_crop = GST_ASPECT_RATIO_CROP (gst_pad_get_parent (pad));

  g_mutex_lock (&aspect_ratio_crop->crop_lock);

  peer = gst_pad_get_peer (aspect_ratio_crop->sink);
  if (peer == NULL) {
    return_caps = gst_static_pad_template_get_caps (&src_template);
  } else {
    GstCaps *peer_caps;

    peer_caps = gst_pad_query_caps (peer, filter);
    return_caps =
        gst_aspect_ratio_crop_transform_caps (aspect_ratio_crop, peer_caps);
    gst_caps_unref (peer_caps);
    gst_object_unref (peer);
  }

  g_mutex_unlock (&aspect_ratio_crop->crop_lock);
  gst_object_unref (aspect_ratio_crop);

  if (return_caps && filter) {
    GstCaps *tmp =
        gst_caps_intersect_full (filter, return_caps, GST_CAPS_INTERSECT_FIRST);
    gst_caps_replace (&return_caps, tmp);
    gst_caps_unref (tmp);
  }

  return return_caps;
}