C++ (Cpp) kms_create_composite_mixer_dataの例

コード例 #1

ファイル: kmscompositemixer.c プロジェクト: chadsmith/kms-elements

static KmsCompositeMixerData *
kms_composite_mixer_port_data_create (KmsCompositeMixer * mixer, gint id)
{
  KmsCompositeMixerData *data;
  gchar *padname;
  GstCaps *filtercaps;

  data = kms_create_composite_mixer_data ();
  data->mixer = mixer;
  data->id = id;
  data->input = FALSE;
  data->removing = FALSE;
  data->eos_managed = FALSE;

  data->videoconvert = gst_element_factory_make ("videoconvert", NULL);
  data->input_capsfilter = gst_element_factory_make ("capsfilter", NULL);

  filtercaps =
      gst_caps_new_simple ("video/x-raw", "format", G_TYPE_STRING, "AYUV",
      "width", G_TYPE_INT, mixer->priv->output_width,
      "height", G_TYPE_INT, mixer->priv->output_height,
      "framerate", GST_TYPE_FRACTION, 15, 1, NULL);
  g_object_set (G_OBJECT (data->input_capsfilter), "caps", filtercaps, NULL);
  gst_caps_unref (filtercaps);

  gst_bin_add_many (GST_BIN (mixer), data->input_capsfilter, data->videoconvert,
      NULL);

  gst_element_sync_state_with_parent (data->videoconvert);
  gst_element_sync_state_with_parent (data->input_capsfilter);

  /*link basemixer -> video_agnostic */
  kms_base_hub_link_video_sink (KMS_BASE_HUB (mixer), data->id,
      data->input_capsfilter, "sink", FALSE);

  gst_element_link (data->input_capsfilter, data->videoconvert);

  padname = g_strdup_printf (AUDIO_SINK_PAD, id);
  kms_base_hub_link_audio_sink (KMS_BASE_HUB (mixer), id,
      mixer->priv->audiomixer, padname, FALSE);
  g_free (padname);

  data->videoconvert_sink_pad = gst_element_get_static_pad (data->videoconvert,
      "sink");

  data->link_probe_id = gst_pad_add_probe (data->videoconvert_sink_pad,
      GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM | GST_PAD_PROBE_TYPE_BLOCK,
      (GstPadProbeCallback) link_to_videomixer,
      KMS_COMPOSITE_MIXER_REF (data), (GDestroyNotify) kms_ref_struct_unref);

  return data;
}

コード例 #2

ファイル: kmscompositemixer.c プロジェクト: kc7bfi/kms-elements

static KmsCompositeMixerData *
kms_composite_mixer_port_data_create (KmsCompositeMixer * mixer, gint id)
{
  KmsCompositeMixerData *data;
  gchar *padname;
  GstPad *tee_src;
  GstCaps *filtercaps;

  data = kms_create_composite_mixer_data ();
  data->mixer = mixer;
  data->id = id;
  data->input = FALSE;
  data->removing = FALSE;
  data->eos_managed = FALSE;

  data->tee = gst_element_factory_make ("tee", NULL);
  data->fakesink = gst_element_factory_make ("fakesink", NULL);
  data->capsfilter = gst_element_factory_make ("capsfilter", NULL);

  g_object_set (G_OBJECT (data->capsfilter), "caps-change-mode",
      1 /*delayed */ , NULL);

  g_object_set (G_OBJECT (data->fakesink), "async", FALSE, "sync", FALSE, NULL);

  gst_bin_add_many (GST_BIN (mixer), data->capsfilter, data->tee,
      data->fakesink, NULL);

  gst_element_sync_state_with_parent (data->capsfilter);
  gst_element_sync_state_with_parent (data->tee);
  gst_element_sync_state_with_parent (data->fakesink);

  filtercaps =
      gst_caps_new_simple ("video/x-raw",
      "width", G_TYPE_INT, mixer->priv->output_width,
      "height", G_TYPE_INT, mixer->priv->output_height,
      "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1, NULL);
  g_object_set (data->capsfilter, "caps", filtercaps, NULL);
  gst_caps_unref (filtercaps);

  /*link basemixer -> video_agnostic */
  kms_base_hub_link_video_sink (KMS_BASE_HUB (mixer), data->id,
      data->capsfilter, "sink", FALSE);

  data->tee_sink_pad = gst_element_get_static_pad (data->tee, "sink");
  gst_element_link_pads (data->capsfilter, NULL, data->tee,
      GST_OBJECT_NAME (data->tee_sink_pad));

  tee_src = gst_element_get_request_pad (data->tee, "src_%u");
  gst_element_link_pads (data->tee, GST_OBJECT_NAME (tee_src), data->fakesink,
      "sink");
  g_object_unref (tee_src);

  padname = g_strdup_printf (AUDIO_SINK_PAD, id);
  kms_base_hub_link_audio_sink (KMS_BASE_HUB (mixer), id,
      mixer->priv->audiomixer, padname, FALSE);
  g_free (padname);

  data->link_probe_id = gst_pad_add_probe (data->tee_sink_pad,
      GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM | GST_PAD_PROBE_TYPE_BLOCK,
      (GstPadProbeCallback) link_to_videomixer,
      KMS_COMPOSITE_MIXER_REF (data), (GDestroyNotify) kms_ref_struct_unref);

  return data;
}