diff options
| -rw-r--r-- | configure.ac | 4 | ||||
| -rw-r--r-- | ext/ladspa/gstladspa.c | 102 |
2 files changed, 97 insertions, 9 deletions
diff --git a/configure.ac b/configure.ac index 7384a7c8..539443ee 100644 --- a/configure.ac +++ b/configure.ac @@ -227,6 +227,10 @@ GST_LICENSE="LGPL" AC_DEFINE_UNQUOTED(GST_LICENSE, "$GST_LICENSE", [GStreamer license]) AC_SUBST(GST_LICENSE) +dnl define LIBDIR so we can inform people where we live +AS_AC_EXPAND(LIBDIR, $libdir) +AC_DEFINE_UNQUOTED(LIBDIR, "$LIBDIR", [library dir]) + dnl set location of plugin directory AG_GST_SET_PLUGINDIR diff --git a/ext/ladspa/gstladspa.c b/ext/ladspa/gstladspa.c index ed742f0d..383e0845 100644 --- a/ext/ladspa/gstladspa.c +++ b/ext/ladspa/gstladspa.c @@ -29,7 +29,6 @@ #include "gstladspa.h" #include <ladspa.h> /* main ladspa sdk include file */ -#include "utils.h" /* ladspa sdk utility functions */ /* 1.0 and the 1.1 preliminary headers don't define a version, but 1.1 final does */ @@ -39,6 +38,11 @@ #define GST_LADSPA_DESCRIPTOR_QDATA g_quark_from_static_string("ladspa-descriptor") +#define GST_LADSPA_DEFAULT_PATH \ + "/usr/lib/ladspa" G_SEARCHPATH_SEPARATOR_S \ + "/usr/local/lib/ladspa" G_SEARCHPATH_SEPARATOR_S \ + LIBDIR "/ladspa" + static void gst_ladspa_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_ladspa_get_property (GObject * object, guint prop_id, @@ -568,15 +572,14 @@ gst_ladspa_process (GstSignalProcessor * gsp, guint nframes) } static void -ladspa_describe_plugin (const char *pcFullFilename, - void *pvPluginHandle, LADSPA_Descriptor_Function pfDescriptorFunction) +ladspa_describe_plugin (LADSPA_Descriptor_Function descriptor_function) { const LADSPA_Descriptor *desc; gint i; /* walk through all the plugins in this pluginlibrary */ i = 0; - while ((desc = pfDescriptorFunction (i++))) { + while ((desc = descriptor_function (i++))) { gchar *type_name; GTypeInfo typeinfo = { sizeof (GstLADSPAClass), @@ -614,6 +617,90 @@ ladspa_describe_plugin (const char *pcFullFilename, } } +/* search just the one directory. + */ +static gboolean +ladspa_plugin_directory_search (const char *dir_name) +{ + GDir *dir; + gchar *file_name; + const gchar *entry_name; + LADSPA_Descriptor_Function descriptor_function; + GModule *plugin; + gboolean ok = FALSE; + + GST_INFO ("scanning directory \"%s\"", dir_name); + + dir = g_dir_open (dir_name, 0, NULL); + if (!dir) + return FALSE; + + while ((entry_name = g_dir_read_name (dir))) { + file_name = g_build_filename (dir_name, entry_name, NULL); + plugin = + g_module_open (file_name, G_MODULE_BIND_LAZY | G_MODULE_BIND_LOCAL); + if (plugin) { + /* the file is a shared library */ + if (g_module_symbol (plugin, "ladspa_descriptor", + (gpointer *) & descriptor_function)) { + /* we've found a ladspa_descriptor function, now introspect it. */ + ladspa_describe_plugin (descriptor_function); + ok = TRUE; + } else { + /* it was a library, but not a LADSPA one. Unload it. */ + g_module_close (plugin); + } + } + g_free (file_name); + } + g_dir_close (dir); + + return ok; +} + +/* search the plugin path + */ +static gboolean +ladspa_plugin_path_search (void) +{ + const char *search_path; + char *ladspa_path; + gchar **paths; + gint i, j, path_entries; + gboolean res = FALSE, skip; + + search_path = g_getenv ("LADSPA_PATH"); + if (search_path) { + ladspa_path = + g_strdup_printf ("%s" G_SEARCHPATH_SEPARATOR_S GST_LADSPA_DEFAULT_PATH, + search_path); + } else { + ladspa_path = g_strdup (GST_LADSPA_DEFAULT_PATH); + } + + paths = g_strsplit (ladspa_path, G_SEARCHPATH_SEPARATOR_S, 0); + path_entries = g_strv_length (paths); + GST_INFO ("%d dirs in search paths \"%s\"", path_entries, ladspa_path); + + for (i = 0; i < path_entries; i++) { + skip = FALSE; + for (j = 0; j < i; j++) { + if (!strcmp (paths[i], paths[j])) { + skip = TRUE; + break; + } + } + if (skip) + break; + res |= ladspa_plugin_directory_search (paths[i]); + } + g_strfreev (paths); + + g_free (ladspa_path); + + return res; +} + static gboolean plugin_init (GstPlugin * plugin) { @@ -622,16 +709,13 @@ plugin_init (GstPlugin * plugin) gst_plugin_add_dependency_simple (plugin, "LADSPA_PATH", - "/usr/lib/ladspa:/usr/local/lib/ladspa", - NULL, GST_PLUGIN_DEPENDENCY_FLAG_NONE); + GST_LADSPA_DEFAULT_PATH, NULL, GST_PLUGIN_DEPENDENCY_FLAG_NONE); parent_class = g_type_class_ref (GST_TYPE_SIGNAL_PROCESSOR); ladspa_plugin = plugin; - LADSPAPluginSearch (ladspa_describe_plugin); - - return TRUE; + return ladspa_plugin_path_search (); } GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, |