C++ (Cpp) gst_caps_features_get_size Examples

Example #1

File: gstglupload.c Project: thaytan/gst-plugins-base

static GstCaps *
_set_caps_features_with_passthrough (const GstCaps * caps,
    const gchar * feature_name, GstCapsFeatures * passthrough)
{
  guint i, j, m, n;
  GstCaps *tmp;

  tmp = gst_caps_new_empty ();

  n = gst_caps_get_size (caps);
  for (i = 0; i < n; i++) {
    GstCapsFeatures *features, *orig_features;
    GstStructure *s = gst_caps_get_structure (caps, i);

    orig_features = gst_caps_get_features (caps, i);
    features = gst_caps_features_new (feature_name, NULL);

    if (gst_caps_features_is_any (orig_features)) {
      /* if we have any features, we add both the features with and without @passthrough */
      gst_caps_append_structure_full (tmp, gst_structure_copy (s),
          gst_caps_features_copy (features));

      m = gst_caps_features_get_size (passthrough);
      for (j = 0; j < m; j++) {
        const gchar *feature = gst_caps_features_get_nth (passthrough, j);

        /* if we already have the features */
        if (gst_caps_features_contains (features, feature))
          continue;

        gst_caps_features_add (features, feature);
      }
    } else {
      m = gst_caps_features_get_size (orig_features);
      for (j = 0; j < m; j++) {
        const gchar *feature = gst_caps_features_get_nth (orig_features, j);

        /* if we already have the features */
        if (gst_caps_features_contains (features, feature))
          continue;

        if (g_strcmp0 (feature, GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY) == 0)
          continue;

        if (gst_caps_features_contains (passthrough, feature)) {
          gst_caps_features_add (features, feature);
        }
      }
    }

    gst_caps_append_structure_full (tmp, gst_structure_copy (s), features);
  }

  return tmp;
}

Example #2

File: gstglmixer.c Project: ego5710/gst-plugins-bad

static GstCaps *
gst_gl_mixer_set_caps_features (const GstCaps * caps,
                                const gchar * feature_name)
{
    GstCaps *tmp = gst_caps_copy (caps);
    guint n = gst_caps_get_size (tmp);
    guint i = 0;

    for (i = 0; i < n; i++) {
        GstCapsFeatures *features = gst_caps_get_features (tmp, i);
        if (features) {
            guint n_f = gst_caps_features_get_size (features);
            guint j = 0;
            for (j = 0; j < n_f; j++) {
                gst_caps_features_remove_id (features,
                                             gst_caps_features_get_nth_id (features, j));
            }
        }

        gst_caps_features_add (features, feature_name);
        gst_caps_set_simple (tmp, "format", G_TYPE_STRING, "RGBA", NULL);
    }

    return tmp;
}

Example #3

File: gstcapsfeatures.c Project: PeterXu/gst-mobile

/**
 * gst_caps_features_copy:
 * @features: a #GstCapsFeatures to duplicate
 *
 * Duplicates a #GstCapsFeatures and all its values.
 *
 * Free-function: gst_caps_features_free
 *
 * Returns: (transfer full): a new #GstCapsFeatures.
 *
 * Since: 1.2
 */
GstCapsFeatures *
gst_caps_features_copy (const GstCapsFeatures * features)
{
  GstCapsFeatures *copy;
  guint i, n;

  g_return_val_if_fail (features != NULL, NULL);

  copy = gst_caps_features_new_empty ();
  n = gst_caps_features_get_size (features);
  for (i = 0; i < n; i++)
    gst_caps_features_add_id (copy, gst_caps_features_get_nth_id (features, i));
  copy->is_any = features->is_any;

  return copy;
}

Example #4

File: vkupload.c Project: GrokImageCompression/gst-plugins-bad

static GstCaps *
_set_caps_features_with_passthrough (const GstCaps * caps,
    const gchar * feature_name, GstCapsFeatures * passthrough)
{
  guint i, j, m, n;
  GstCaps *tmp;

  tmp = gst_caps_copy (caps);

  n = gst_caps_get_size (caps);
  for (i = 0; i < n; i++) {
    GstCapsFeatures *features, *orig_features;

    orig_features = gst_caps_get_features (caps, i);
    features = gst_caps_features_new (feature_name, NULL);

    m = gst_caps_features_get_size (orig_features);
    for (j = 0; j < m; j++) {
      const gchar *feature = gst_caps_features_get_nth (orig_features, j);

      /* if we already have the features */
      if (gst_caps_features_contains (features, feature))
        continue;

      if (g_strcmp0 (feature, GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY) == 0)
        continue;

      if (passthrough && gst_caps_features_contains (passthrough, feature)) {
        gst_caps_features_add (features, feature);
      }
    }

    gst_caps_set_features (tmp, i, features);
  }

  return tmp;
}

Example #5

File: gstglutils.c Project: ndufresne/gst-plugins-bad

GstCaps *
gst_gl_caps_replace_all_caps_features (const GstCaps * caps,
    const gchar * feature_name)
{
  GstCaps *tmp = gst_caps_copy (caps);
  guint n = gst_caps_get_size (tmp);
  guint i = 0;

  for (i = 0; i < n; i++) {
    GstCapsFeatures *features = gst_caps_get_features (tmp, i);
    if (features) {
      guint n_f = gst_caps_features_get_size (features);
      guint j = 0;
      for (j = 0; j < n_f; j++) {
        gst_caps_features_remove_id (features,
            gst_caps_features_get_nth_id (features, j));
      }
    }

    gst_caps_features_add (features, feature_name);
  }

  return tmp;
}