C++ (Cpp) gst_oss_helper_probe_caps Examples

Example #1

File: gstosssrc.c Project: ChinnaSuhas/ossbuild

static GstCaps *
gst_oss_src_getcaps (GstBaseSrc * bsrc)
{
  GstOssSrc *osssrc;
  GstCaps *caps;

  osssrc = GST_OSS_SRC (bsrc);

  if (osssrc->fd == -1) {
    GST_DEBUG_OBJECT (osssrc, "device not open, using template caps");
    return NULL;                /* base class will get template caps for us */
  }

  if (osssrc->probed_caps) {
    GST_LOG_OBJECT (osssrc, "Returning cached caps");
    return gst_caps_ref (osssrc->probed_caps);
  }

  caps = gst_oss_helper_probe_caps (osssrc->fd);

  if (caps) {
    osssrc->probed_caps = gst_caps_ref (caps);
  }

  GST_INFO_OBJECT (osssrc, "returning caps %" GST_PTR_FORMAT, caps);

  return caps;
}

Example #2

File: gstosssink.c Project: BigBrother-International/gst-plugins-good

static GstCaps *
gst_oss_sink_getcaps (GstBaseSink * bsink, GstCaps * filter)
{
  GstOssSink *osssink;
  GstCaps *caps;

  osssink = GST_OSSSINK (bsink);

  if (osssink->fd == -1) {
    caps = gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD (bsink));
  } else if (osssink->probed_caps) {
    caps = gst_caps_ref (osssink->probed_caps);
  } else {
    caps = gst_oss_helper_probe_caps (osssink->fd);
    if (caps && !gst_caps_is_empty (caps)) {
      osssink->probed_caps = gst_caps_ref (caps);
    }
  }

  if (filter && caps) {
    GstCaps *intersection;

    intersection =
        gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
    gst_caps_unref (caps);
    return intersection;
  } else {
    return caps;
  }
}

Example #3

File: gstosssink.c Project: rosciio/gst-plugins-good

static GstCaps *
gst_oss_sink_getcaps (GstBaseSink * bsink)
{
  GstOssSink *osssink;
  GstCaps *caps;

  osssink = GST_OSSSINK (bsink);

  if (osssink->fd == -1) {
    caps = gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD
            (bsink)));
  } else if (osssink->probed_caps) {
    caps = gst_caps_copy (osssink->probed_caps);
  } else {
    caps = gst_oss_helper_probe_caps (osssink->fd);
    if (caps && !gst_caps_is_empty (caps)) {
      osssink->probed_caps = gst_caps_copy (caps);
    }
  }

  return caps;
}