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synced 2024-07-05 06:05:53 +00:00
ladspa: add LIBDIR/ladspa to search path and make path more portable
Use glib defines for searchpath separators. Filter searchpath to avoid scanning path entries twice. Fix the return in ladspa_plugin_directory_search to return wheter we found a plugin.
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parent
86c5975ebe
commit
070ffb6940
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@ -227,6 +227,10 @@ GST_LICENSE="LGPL"
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AC_DEFINE_UNQUOTED(GST_LICENSE, "$GST_LICENSE", [GStreamer license])
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AC_SUBST(GST_LICENSE)
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dnl define LIBDIR so we can inform people where we live
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AS_AC_EXPAND(LIBDIR, $libdir)
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AC_DEFINE_UNQUOTED(LIBDIR, "$LIBDIR", [library dir])
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dnl set location of plugin directory
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AG_GST_SET_PLUGINDIR
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@ -29,7 +29,6 @@
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#include "gstladspa.h"
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#include <ladspa.h> /* main ladspa sdk include file */
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#include "utils.h" /* ladspa sdk utility functions */
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/* 1.0 and the 1.1 preliminary headers don't define a version, but 1.1 final
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does */
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@ -39,6 +38,11 @@
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#define GST_LADSPA_DESCRIPTOR_QDATA g_quark_from_static_string("ladspa-descriptor")
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#define GST_LADSPA_DEFAULT_PATH \
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"/usr/lib/ladspa" G_SEARCHPATH_SEPARATOR_S \
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"/usr/local/lib/ladspa" G_SEARCHPATH_SEPARATOR_S \
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LIBDIR "/ladspa"
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static void gst_ladspa_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_ladspa_get_property (GObject * object, guint prop_id,
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@ -568,15 +572,14 @@ gst_ladspa_process (GstSignalProcessor * gsp, guint nframes)
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}
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static void
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ladspa_describe_plugin (const char *pcFullFilename,
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void *pvPluginHandle, LADSPA_Descriptor_Function pfDescriptorFunction)
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ladspa_describe_plugin (LADSPA_Descriptor_Function descriptor_function)
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{
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const LADSPA_Descriptor *desc;
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gint i;
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/* walk through all the plugins in this pluginlibrary */
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i = 0;
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while ((desc = pfDescriptorFunction (i++))) {
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while ((desc = descriptor_function (i++))) {
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gchar *type_name;
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GTypeInfo typeinfo = {
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sizeof (GstLADSPAClass),
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@ -614,6 +617,90 @@ ladspa_describe_plugin (const char *pcFullFilename,
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}
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}
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/* search just the one directory.
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*/
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static gboolean
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ladspa_plugin_directory_search (const char *dir_name)
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{
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GDir *dir;
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gchar *file_name;
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const gchar *entry_name;
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LADSPA_Descriptor_Function descriptor_function;
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GModule *plugin;
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gboolean ok = FALSE;
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GST_INFO ("scanning directory \"%s\"", dir_name);
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dir = g_dir_open (dir_name, 0, NULL);
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if (!dir)
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return FALSE;
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while ((entry_name = g_dir_read_name (dir))) {
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file_name = g_build_filename (dir_name, entry_name, NULL);
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plugin =
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g_module_open (file_name, G_MODULE_BIND_LAZY | G_MODULE_BIND_LOCAL);
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if (plugin) {
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/* the file is a shared library */
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if (g_module_symbol (plugin, "ladspa_descriptor",
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(gpointer *) & descriptor_function)) {
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/* we've found a ladspa_descriptor function, now introspect it. */
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ladspa_describe_plugin (descriptor_function);
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ok = TRUE;
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} else {
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/* it was a library, but not a LADSPA one. Unload it. */
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g_module_close (plugin);
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}
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}
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g_free (file_name);
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}
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g_dir_close (dir);
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return ok;
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}
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/* search the plugin path
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*/
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static gboolean
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ladspa_plugin_path_search (void)
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{
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const char *search_path;
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char *ladspa_path;
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gchar **paths;
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gint i, j, path_entries;
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gboolean res = FALSE, skip;
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search_path = g_getenv ("LADSPA_PATH");
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if (search_path) {
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ladspa_path =
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g_strdup_printf ("%s" G_SEARCHPATH_SEPARATOR_S GST_LADSPA_DEFAULT_PATH,
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search_path);
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} else {
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ladspa_path = g_strdup (GST_LADSPA_DEFAULT_PATH);
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}
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paths = g_strsplit (ladspa_path, G_SEARCHPATH_SEPARATOR_S, 0);
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path_entries = g_strv_length (paths);
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GST_INFO ("%d dirs in search paths \"%s\"", path_entries, ladspa_path);
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for (i = 0; i < path_entries; i++) {
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skip = FALSE;
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for (j = 0; j < i; j++) {
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if (!strcmp (paths[i], paths[j])) {
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skip = TRUE;
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break;
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}
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}
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if (skip)
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break;
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res |= ladspa_plugin_directory_search (paths[i]);
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}
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g_strfreev (paths);
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g_free (ladspa_path);
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return res;
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}
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static gboolean
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plugin_init (GstPlugin * plugin)
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{
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@ -622,16 +709,13 @@ plugin_init (GstPlugin * plugin)
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gst_plugin_add_dependency_simple (plugin,
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"LADSPA_PATH",
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"/usr/lib/ladspa:/usr/local/lib/ladspa",
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NULL, GST_PLUGIN_DEPENDENCY_FLAG_NONE);
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GST_LADSPA_DEFAULT_PATH, NULL, GST_PLUGIN_DEPENDENCY_FLAG_NONE);
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parent_class = g_type_class_ref (GST_TYPE_SIGNAL_PROCESSOR);
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ladspa_plugin = plugin;
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LADSPAPluginSearch (ladspa_describe_plugin);
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return TRUE;
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return ladspa_plugin_path_search ();
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}
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GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
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