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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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Separate port discovery from pad template creation.
This first counts ports (using the builtin slv2 functions to do so rather than manually as before), then creates descriptors for each port and finds all port groups. Only then are pad templates created (towards using group information for creating multi-channel pads).
This commit is contained in:
Dave Robillard
Stefan Kost
parent
28b35ae923
commit
b849ae89b5
1 changed files with 69 additions and 69 deletions
138
ext/lv2/gstlv2.c
138
ext/lv2/gstlv2.c
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@ -88,13 +88,72 @@ gst_lv2_base_init (gpointer g_class)
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g_assert (lv2plugin);
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/* pad templates */
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gsp_class->num_audio_in = 0;
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gsp_class->num_audio_out = 0;
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/* properties */
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gsp_class->num_control_in = 0;
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gsp_class->num_control_out = 0;
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/* audio ports (pads) */
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gsp_class->num_audio_in = slv2_plugin_get_num_ports_of_class (lv2plugin,
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audio_class, input_class, NULL);
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gsp_class->num_audio_out = slv2_plugin_get_num_ports_of_class (lv2plugin,
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audio_class, output_class, NULL);
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/* control ports (properties) */
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gsp_class->num_control_in = slv2_plugin_get_num_ports_of_class (lv2plugin,
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control_class, input_class, NULL);
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gsp_class->num_control_out = slv2_plugin_get_num_ports_of_class (lv2plugin,
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control_class, output_class, NULL);
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klass->audio_in_ports = g_new0 (struct _GstLV2Port, gsp_class->num_audio_in);
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klass->audio_out_ports =
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g_new0 (struct _GstLV2Port, gsp_class->num_audio_out);
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klass->control_in_ports =
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g_new0 (struct _GstLV2Port, gsp_class->num_control_in);
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klass->control_out_ports =
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g_new0 (struct _GstLV2Port, gsp_class->num_control_out);
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klass->groups = NULL;
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pred = slv2_value_new_uri (world,
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"http://lv2plug.in/ns/dev/port-groups#inGroup");
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/* find port groups */
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audio_in_count = audio_out_count = control_in_count = control_out_count = 0;
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for (j = 0; j < slv2_plugin_get_num_ports (lv2plugin); j++) {
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SLV2Port port = slv2_plugin_get_port_by_index (lv2plugin, j);
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gboolean is_input = slv2_port_is_a (lv2plugin, port, input_class);
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struct _GstLV2Port *desc = NULL;
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if (slv2_port_is_a (lv2plugin, port, audio_class)) {
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if (is_input)
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desc = &klass->audio_in_ports[audio_in_count++];
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else
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desc = &klass->audio_out_ports[audio_out_count++];
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} else if (slv2_port_is_a (lv2plugin, port, control_class)) {
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if (is_input)
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desc = &klass->control_in_ports[control_in_count++];
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else
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desc = &klass->control_out_ports[control_out_count++];
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} else {
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/* unknown port type */
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continue;
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}
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desc->index = j;
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values = slv2_port_get_value (lv2plugin, port, pred);
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if (slv2_values_size (values) > 0) {
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SLV2Value v = slv2_values_get_at (values, 0);
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desc->group = v;
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if (!g_slist_find_custom (klass->groups, v, gst_lv2_value_cmp)) {
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klass->groups =
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g_slist_prepend (klass->groups, slv2_value_duplicate (v));
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}
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g_assert (g_slist_find_custom (klass->groups, v, gst_lv2_value_cmp));
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}
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slv2_values_free (values);
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}
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g_assert (audio_in_count == gsp_class->num_audio_in);
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g_assert (audio_out_count == gsp_class->num_audio_out);
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g_assert (control_in_count == gsp_class->num_control_in);
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g_assert (control_out_count == gsp_class->num_control_out);
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slv2_value_free (pred);
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/* add pad templates */
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audio_in_count = audio_out_count = 0;
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for (j = 0; j < slv2_plugin_get_num_ports (lv2plugin); j++) {
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SLV2Port port = slv2_plugin_get_port_by_index (lv2plugin, j);
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if (slv2_port_is_a (lv2plugin, port, audio_class)) {
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@ -106,22 +165,16 @@ gst_lv2_base_init (gpointer g_class)
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if (slv2_port_is_a (lv2plugin, port, input_class))
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gst_signal_processor_class_add_pad_template (gsp_class, name,
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GST_PAD_SINK, gsp_class->num_audio_in++);
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GST_PAD_SINK, audio_in_count++);
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else if (slv2_port_is_a (lv2plugin, port, output_class))
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gst_signal_processor_class_add_pad_template (gsp_class, name,
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GST_PAD_SRC, gsp_class->num_audio_out++);
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/* TODO: else ignore plugin */
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GST_PAD_SRC, audio_out_count++);
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g_free (name);
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} else if (slv2_port_is_a (lv2plugin, port, control_class)) {
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if (slv2_port_is_a (lv2plugin, port, input_class))
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gsp_class->num_control_in++;
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else if (slv2_port_is_a (lv2plugin, port, output_class))
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gsp_class->num_control_out++;
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/* TODO: else ignore plugin */
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}
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/* TODO: else ignore plugin */
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}
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g_assert (audio_in_count == gsp_class->num_audio_in);
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g_assert (audio_out_count == gsp_class->num_audio_out);
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/* construct the element details struct */
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details = g_new0 (GstElementDetails, 1);
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@ -158,59 +211,6 @@ gst_lv2_base_init (gpointer g_class)
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g_free (details->author);
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g_free (details);
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klass->groups = NULL;
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klass->audio_in_ports = g_new0 (struct _GstLV2Port, gsp_class->num_audio_in);
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klass->audio_out_ports =
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g_new0 (struct _GstLV2Port, gsp_class->num_audio_out);
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klass->control_in_ports =
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g_new0 (struct _GstLV2Port, gsp_class->num_control_in);
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klass->control_out_ports =
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g_new0 (struct _GstLV2Port, gsp_class->num_control_out);
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audio_in_count = audio_out_count = control_in_count = control_out_count = 0;
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pred = slv2_value_new_uri (world,
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"http://lv2plug.in/ns/dev/port-groups#inGroup");
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for (j = 0; j < slv2_plugin_get_num_ports (lv2plugin); j++) {
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SLV2Port port = slv2_plugin_get_port_by_index (lv2plugin, j);
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gboolean is_input = slv2_port_is_a (lv2plugin, port, input_class);
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struct _GstLV2Port *desc = NULL;
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if (slv2_port_is_a (lv2plugin, port, audio_class)) {
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if (is_input)
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desc = &klass->audio_in_ports[audio_in_count++];
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else
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desc = &klass->audio_out_ports[audio_out_count++];
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} else if (slv2_port_is_a (lv2plugin, port, control_class)) {
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if (is_input)
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desc = &klass->control_in_ports[control_in_count++];
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else
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desc = &klass->control_out_ports[control_out_count++];
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} else {
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/* unknown port type */
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continue;
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}
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desc->index = j;
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values = slv2_port_get_value (lv2plugin, port, pred);
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if (slv2_values_size (values) > 0) {
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SLV2Value v = slv2_values_get_at (values, 0);
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desc->group = v;
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if (!g_slist_find_custom (klass->groups, v, gst_lv2_value_cmp)) {
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klass->groups =
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g_slist_prepend (klass->groups, slv2_value_duplicate (v));
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}
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}
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slv2_values_free (values);
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}
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slv2_value_free (pred);
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g_assert (audio_in_count == gsp_class->num_audio_in);
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g_assert (audio_out_count == gsp_class->num_audio_out);
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g_assert (control_in_count == gsp_class->num_control_in);
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g_assert (control_out_count == gsp_class->num_control_out);
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pred = slv2_value_new_uri (world,
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"http://lv2plug.in/ns/lv2core#inPlaceBroken");
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if (!slv2_plugin_has_feature (lv2plugin, pred))
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