Exemplos de gst_v4l2_object_close em C++ (Cpp)

Exemplo n.º 1

Arquivo: gstv4l2transform.c Projeto: BigBrother-International/gst-plugins-good

static void
gst_v4l2_transform_close (GstV4l2Transform * self)
{
  GST_DEBUG_OBJECT (self, "Closing");

  gst_v4l2_object_close (self->v4l2output);
  gst_v4l2_object_close (self->v4l2capture);

  gst_caps_replace (&self->probed_srccaps, NULL);
  gst_caps_replace (&self->probed_srccaps, NULL);
}

Exemplo n.º 2

Arquivo: gstv4l2videodec.c Projeto: vatavuserban/gst-plugins-good

static gboolean
gst_v4l2_video_dec_open (GstVideoDecoder * decoder)
{
  GstV4l2VideoDec *self = GST_V4L2_VIDEO_DEC (decoder);

  GST_DEBUG_OBJECT (self, "Opening");

  if (!gst_v4l2_object_open (self->v4l2output))
    goto failure;

  if (!gst_v4l2_object_open_shared (self->v4l2capture, self->v4l2output))
    goto failure;

  self->probed_sinkcaps = gst_v4l2_object_get_caps (self->v4l2output,
      gst_v4l2_object_get_codec_caps ());

  if (gst_caps_is_empty (self->probed_sinkcaps))
    goto no_encoded_format;

  self->probed_srccaps = gst_v4l2_object_get_caps (self->v4l2capture,
      gst_v4l2_object_get_raw_caps ());

  if (gst_caps_is_empty (self->probed_srccaps))
    goto no_raw_format;

  return TRUE;

no_encoded_format:
  GST_ELEMENT_ERROR (self, RESOURCE, SETTINGS,
      (_("Encoder on device %s has no supported input format"),
          self->v4l2output->videodev), (NULL));
  goto failure;


no_raw_format:
  GST_ELEMENT_ERROR (self, RESOURCE, SETTINGS,
      (_("Encoder on device %s has no supported output format"),
          self->v4l2output->videodev), (NULL));
  goto failure;

failure:
  if (GST_V4L2_IS_OPEN (self->v4l2output))
    gst_v4l2_object_close (self->v4l2output);

  if (GST_V4L2_IS_OPEN (self->v4l2capture))
    gst_v4l2_object_close (self->v4l2capture);

  gst_caps_replace (&self->probed_srccaps, NULL);
  gst_caps_replace (&self->probed_sinkcaps, NULL);

  return FALSE;
}

Exemplo n.º 3

Arquivo: gstv4l2videodec.c Projeto: vatavuserban/gst-plugins-good

static gboolean
gst_v4l2_video_dec_close (GstVideoDecoder * decoder)
{
  GstV4l2VideoDec *self = GST_V4L2_VIDEO_DEC (decoder);

  GST_DEBUG_OBJECT (self, "Closing");

  gst_v4l2_object_close (self->v4l2output);
  gst_v4l2_object_close (self->v4l2capture);
  gst_caps_replace (&self->probed_srccaps, NULL);
  gst_caps_replace (&self->probed_sinkcaps, NULL);

  return TRUE;
}

Exemplo n.º 4

Arquivo: gstv4l2src.c Projeto: vatavuserban/gst-plugins-good

static GstStateChangeReturn
gst_v4l2src_change_state (GstElement * element, GstStateChange transition)
{
  GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
  GstV4l2Src *v4l2src = GST_V4L2SRC (element);
  GstV4l2Object *obj = v4l2src->v4l2object;

  switch (transition) {
    case GST_STATE_CHANGE_NULL_TO_READY:
      /* open the device */
      if (!gst_v4l2_object_open (obj))
        return GST_STATE_CHANGE_FAILURE;
      break;
    default:
      break;
  }

  ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);

  switch (transition) {
    case GST_STATE_CHANGE_READY_TO_NULL:
      /* close the device */
      if (!gst_v4l2_object_close (obj))
        return GST_STATE_CHANGE_FAILURE;

      break;
    default:
      break;
  }

  return ret;
}

Exemplo n.º 5

Arquivo: gstv4l2sink.c Projeto: PeterXu/gst-mobile

static GstStateChangeReturn
gst_v4l2sink_change_state (GstElement * element, GstStateChange transition)
{
  GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
  GstV4l2Sink *v4l2sink = GST_V4L2SINK (element);

  GST_DEBUG_OBJECT (v4l2sink, "%d -> %d",
      GST_STATE_TRANSITION_CURRENT (transition),
      GST_STATE_TRANSITION_NEXT (transition));

  switch (transition) {
    case GST_STATE_CHANGE_NULL_TO_READY:
      /* open the device */
      if (!gst_v4l2_object_open (v4l2sink->v4l2object))
        return GST_STATE_CHANGE_FAILURE;
      break;
    default:
      break;
  }

  ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);

  switch (transition) {
    case GST_STATE_CHANGE_PAUSED_TO_READY:
      if (!gst_v4l2_object_stop (v4l2sink->v4l2object))
        return GST_STATE_CHANGE_FAILURE;
      break;
    case GST_STATE_CHANGE_READY_TO_NULL:
      /* we need to call stop here too */
      if (!gst_v4l2_object_stop (v4l2sink->v4l2object))
        return GST_STATE_CHANGE_FAILURE;
      /* close the device */
      if (!gst_v4l2_object_close (v4l2sink->v4l2object))
        return GST_STATE_CHANGE_FAILURE;
      break;
    default:
      break;
  }

  return ret;
}