C++ (Cpp) gst_v4l2_object_get_raw_caps 예제들

예제 #1

파일: gstv4l2transform.c 프로젝트: BigBrother-International/gst-plugins-good

/* Probing functions */
gboolean
gst_v4l2_is_transform (GstCaps * sink_caps, GstCaps * src_caps)
{
  gboolean ret = FALSE;

  if (gst_caps_is_subset (sink_caps, gst_v4l2_object_get_raw_caps ())
      && gst_caps_is_subset (src_caps, gst_v4l2_object_get_raw_caps ()))
    ret = TRUE;

  return ret;
}

예제 #2

파일: gstv4l2transform.c 프로젝트: BigBrother-International/gst-plugins-good

static gboolean
gst_v4l2_transform_open (GstV4l2Transform * self)
{
  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_raw_caps ());

  if (gst_caps_is_empty (self->probed_sinkcaps))
    goto no_input_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_output_format;

  return TRUE;

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


no_output_format:
  GST_ELEMENT_ERROR (self, RESOURCE, SETTINGS,
      (_("Converter 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;
}

예제 #3

파일: gstv4l2h264enc.c 프로젝트: hizukiayaka/gst-plugins-good

/* Probing functions */
gboolean
gst_v4l2_is_h264_enc (GstCaps * sink_caps, GstCaps * src_caps)
{
  gboolean ret = FALSE;
  GstCaps *codec_caps;

  codec_caps = gst_static_caps_get (&src_template_caps);

  if (gst_caps_is_subset (sink_caps, gst_v4l2_object_get_raw_caps ())
      && gst_caps_can_intersect (src_caps, codec_caps))
    ret = TRUE;

  gst_caps_unref (codec_caps);

  return ret;
}