Move the two function from search.c into gstladspa.c and make them static.
Remove non needed arguments from function prototypes. Use glib api for
simplicity and portability.
plugin_LTLIBRARIES = libgstladspa.la
-libgstladspa_la_SOURCES = gstsignalprocessor.c gstladspa.c search.c #load.c
+libgstladspa_la_SOURCES = gstsignalprocessor.c gstladspa.c
libgstladspa_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_CONTROLLER_CFLAGS) $(GST_CFLAGS)
libgstladspa_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) -lgstaudio-$(GST_MAJORMINOR) $(LIBM) $(LADSPA_LIBS)
libgstladspa_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstladspa_la_LIBTOOLFLAGS = --tag=disable-static
-noinst_HEADERS = gstsignalprocessor.h gstladspa.h utils.h
+noinst_HEADERS = gstsignalprocessor.h gstladspa.h
+++ /dev/null
-/* load.c
-
- Free software by Richard W.E. Furse. Do with as you will. No
- warranty. */
-
-/*****************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <dlfcn.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <glib.h>
-
-/*****************************************************************************/
-
-#include "ladspa.h"
-#include "utils.h"
-
-/*****************************************************************************/
-
-/* This function provides a wrapping of dlopen(). When the filename is
- not an absolute path (i.e. does not begin with / character), this
- routine will search the LADSPA_PATH for the file. */
-static void *
-dlopenLADSPA (const char *pcFilename, int iFlag)
-{
-
- char *pcBuffer;
- const char *pcEnd;
- const char *pcLADSPAPath;
- const char *pcStart;
- int iEndsInSO;
- int iNeedSlash;
- size_t iFilenameLength;
- void *pvResult;
-
- iFilenameLength = strlen (pcFilename);
- pvResult = NULL;
-
- if (pcFilename[0] == '/') {
-
- /* The filename is absolute. Assume the user knows what he/she is
- doing and simply dlopen() it. */
-
- pvResult = dlopen (pcFilename, iFlag);
- if (pvResult != NULL)
- return pvResult;
-
- } else {
-
- /* If the filename is not absolute then we wish to check along the
- LADSPA_PATH path to see if we can find the file there. We do
- NOT call dlopen() directly as this would find plugins on the
- LD_LIBRARY_PATH, whereas the LADSPA_PATH is the correct place
- to search. */
-
- /* thomasvs: I'm sorry, but I'm going to add glib stuff here.
- * I'm appending logical values for LADSPA_PATH here
- */
-
- pcLADSPAPath = g_strdup_printf ("%s:/usr/lib/ladspa:/usr/local/lib/ladspa",
- getenv ("LADSPA_PATH"));
-
- if (pcLADSPAPath) {
-
- pcStart = pcLADSPAPath;
- while (*pcStart != '\0') {
- pcEnd = pcStart;
- while (*pcEnd != ':' && *pcEnd != '\0')
- pcEnd++;
-
- pcBuffer = malloc (iFilenameLength + 2 + (pcEnd - pcStart));
- if (pcEnd > pcStart)
- strncpy (pcBuffer, pcStart, pcEnd - pcStart);
- iNeedSlash = 0;
- if (pcEnd > pcStart)
- if (*(pcEnd - 1) != '/') {
- iNeedSlash = 1;
- pcBuffer[pcEnd - pcStart] = '/';
- }
- strcpy (pcBuffer + iNeedSlash + (pcEnd - pcStart), pcFilename);
-
- pvResult = dlopen (pcBuffer, iFlag);
-
- free (pcBuffer);
- if (pvResult != NULL)
- return pvResult;
-
- pcStart = pcEnd;
- if (*pcStart == ':')
- pcStart++;
- }
- }
- }
-
- /* As a last ditch effort, check if filename does not end with
- ".so". In this case, add this suffix and recurse. */
- iEndsInSO = 0;
- if (iFilenameLength > 3)
- iEndsInSO = (strcmp (pcFilename + iFilenameLength - 3, ".so") == 0);
- if (!iEndsInSO) {
- pcBuffer = malloc (iFilenameLength + 4);
- strcpy (pcBuffer, pcFilename);
- strcat (pcBuffer, ".so");
- pvResult = dlopenLADSPA (pcBuffer, iFlag);
- free (pcBuffer);
- }
-
- if (pvResult != NULL)
- return pvResult;
-
- /* If nothing has worked, then at least we can make sure we set the
- correct error message - and this should correspond to a call to
- dlopen() with the actual filename requested. The dlopen() manual
- page does not specify whether the first or last error message
- will be kept when multiple calls are made to dlopen(). We've
- covered the former case - now we can handle the latter by calling
- dlopen() again here. */
- return dlopen (pcFilename, iFlag);
-}
-
-/*****************************************************************************/
-
-void *
-loadLADSPAPluginLibrary (const char *pcPluginFilename)
-{
-
- void *pvPluginHandle;
-
- pvPluginHandle = dlopenLADSPA (pcPluginFilename, RTLD_NOW);
- if (!pvPluginHandle) {
- fprintf (stderr,
- "Failed to load plugin \"%s\": %s\n", pcPluginFilename, dlerror ());
- exit (1);
- }
-
- return pvPluginHandle;
-}
-
-/*****************************************************************************/
-
-void
-unloadLADSPAPluginLibrary (void *pvLADSPAPluginLibrary)
-{
- dlclose (pvLADSPAPluginLibrary);
-}
-
-/*****************************************************************************/
-
-const LADSPA_Descriptor *
-findLADSPAPluginDescriptor (void *pvLADSPAPluginLibrary,
- const char *pcPluginLibraryFilename, const char *pcPluginLabel)
-{
-
- const LADSPA_Descriptor *psDescriptor;
- LADSPA_Descriptor_Function pfDescriptorFunction;
- unsigned long lPluginIndex;
-
- dlerror ();
- pfDescriptorFunction
- = (LADSPA_Descriptor_Function) dlsym (pvLADSPAPluginLibrary,
- "ladspa_descriptor");
- if (!pfDescriptorFunction) {
- const char *pcError = dlerror ();
-
- if (pcError) {
- fprintf (stderr,
- "Unable to find ladspa_descriptor() function in plugin "
- "library file \"%s\": %s.\n"
- "Are you sure this is a LADSPA plugin file?\n",
- pcPluginLibraryFilename, pcError);
- exit (1);
- }
- }
-
- for (lPluginIndex = 0;; lPluginIndex++) {
- psDescriptor = pfDescriptorFunction (lPluginIndex);
- if (psDescriptor == NULL) {
- fprintf (stderr,
- "Unable to find label \"%s\" in plugin library file \"%s\".\n",
- pcPluginLabel, pcPluginLibraryFilename);
- exit (1);
- }
- if (strcmp (psDescriptor->Label, pcPluginLabel) == 0)
- return psDescriptor;
- }
-}
-
-/*****************************************************************************/
-
-/* EOF */
+++ /dev/null
-/* search.c
-
- Free software by Richard W.E. Furse. Do with as you will. No
- warranty. */
-
-/*****************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <dirent.h>
-#include <dlfcn.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <glib.h>
-
-/*****************************************************************************/
-
-#include "ladspa.h"
-#include "utils.h"
-
-/*****************************************************************************/
-
-/* Search just the one directory. */
-static void
- LADSPADirectoryPluginSearch
- (const char *pcDirectory,
- LADSPAPluginSearchCallbackFunction fCallbackFunction)
-{
-
- char *pcFilename;
- DIR *psDirectory;
- LADSPA_Descriptor_Function fDescriptorFunction;
- long lDirLength;
- long iNeedSlash;
- struct dirent *psDirectoryEntry;
- void *pvPluginHandle;
-
- lDirLength = strlen (pcDirectory);
- if (!lDirLength)
- return;
- if (pcDirectory[lDirLength - 1] == '/')
- iNeedSlash = 0;
- else
- iNeedSlash = 1;
-
- psDirectory = opendir (pcDirectory);
- if (!psDirectory)
- return;
-
- while (1) {
-
- psDirectoryEntry = readdir (psDirectory);
- if (!psDirectoryEntry) {
- closedir (psDirectory);
- return;
- }
-
- pcFilename = malloc (lDirLength + strlen (psDirectoryEntry->d_name)
- + 1 + iNeedSlash);
- strcpy (pcFilename, pcDirectory);
- if (iNeedSlash)
- strcat (pcFilename, "/");
- strcat (pcFilename, psDirectoryEntry->d_name);
-
- pvPluginHandle = dlopen (pcFilename, RTLD_LAZY);
- if (pvPluginHandle) {
- /* This is a file and the file is a shared library! */
-
- dlerror ();
- fDescriptorFunction
- = (LADSPA_Descriptor_Function) dlsym (pvPluginHandle,
- "ladspa_descriptor");
- if (dlerror () == NULL && fDescriptorFunction) {
- /* We've successfully found a ladspa_descriptor function. Pass
- it to the callback function. */
- fCallbackFunction (pcFilename, pvPluginHandle, fDescriptorFunction);
- } else {
- /* It was a library, but not a LADSPA one. Unload it. */
- dlclose (pvPluginHandle);
- }
- }
- free (pcFilename);
- }
-}
-
-/*****************************************************************************/
-
-void
-LADSPAPluginSearch (LADSPAPluginSearchCallbackFunction fCallbackFunction)
-{
-
- char *pcBuffer;
- const char *pcEnd;
- const char *pcLADSPAPath;
- const char *pcStart;
- char *search_path;
-
- /* thomasvs: I'm sorry, but I'm going to add glib stuff here.
- * I'm appending logical values for LADSPA_PATH here
- */
-
- search_path = getenv ("LADSPA_PATH");
- if (search_path) {
- pcLADSPAPath = g_strdup_printf ("%s:/usr/lib/ladspa:/usr/local/lib/ladspa",
- search_path);
- } else {
- pcLADSPAPath = g_strdup ("/usr/lib/ladspa:/usr/local/lib/ladspa");
- }
-
- if (!pcLADSPAPath) {
-/* fprintf(stderr, */
-/* "Warning: You do not have a LADSPA_PATH " */
-/* "environment variable set.\n"); */
- return;
- }
-
- pcStart = pcLADSPAPath;
- while (*pcStart != '\0') {
- pcEnd = pcStart;
- while (*pcEnd != ':' && *pcEnd != '\0')
- pcEnd++;
-
- pcBuffer = malloc (1 + pcEnd - pcStart);
- if (pcEnd > pcStart)
- strncpy (pcBuffer, pcStart, pcEnd - pcStart);
- pcBuffer[pcEnd - pcStart] = '\0';
-
- LADSPADirectoryPluginSearch (pcBuffer, fCallbackFunction);
- free (pcBuffer);
-
- pcStart = pcEnd;
- if (*pcStart == ':')
- pcStart++;
- }
- g_free ((gpointer) pcLADSPAPath);
-}
-
-/*****************************************************************************/
-
-/* EOF */
+++ /dev/null
-/* utils.h
-
- Free software by Richard W.E. Furse. Do with as you will. No
- warranty. */
-
-#ifndef LADSPA_SDK_LOAD_PLUGIN_LIB
-#define LADSPA_SDK_LOAD_PLUGIN_LIB
-
-/*****************************************************************************/
-
-#include <ladspa.h>
-
-/*****************************************************************************/
-
-/* Functions in load.c: */
-
-/* This function call takes a plugin library filename, searches for
- the library along the LADSPA_PATH, loads it with dlopen() and
- returns a plugin handle for use with findPluginDescriptor() or
- unloadLADSPAPluginLibrary(). Errors are handled by writing a
- message to stderr and calling exit(1). It is alright (although
- inefficient) to call this more than once for the same file. */
-void * loadLADSPAPluginLibrary(const char * pcPluginFilename);
-
-/* This function unloads a LADSPA plugin library. */
-void unloadLADSPAPluginLibrary(void * pvLADSPAPluginLibrary);
-
-/* This function locates a LADSPA plugin within a plugin library
- loaded with loadLADSPAPluginLibrary(). Errors are handled by
- writing a message to stderr and calling exit(1). Note that the
- plugin library filename is only included to help provide
- informative error messages. */
-const LADSPA_Descriptor *
-findLADSPAPluginDescriptor(void * pvLADSPAPluginLibrary,
- const char * pcPluginLibraryFilename,
- const char * pcPluginLabel);
-
-/*****************************************************************************/
-
-/* Functions in search.c: */
-
-/* Callback function for use with LADSPAPluginSearch(). The callback
- function passes the filename (full path), a plugin handle (dlopen()
- style) and a LADSPA_DescriptorFunction (from which
- LADSPA_Descriptors can be acquired). */
-typedef void LADSPAPluginSearchCallbackFunction
-(const char * pcFullFilename,
- void * pvPluginHandle,
- LADSPA_Descriptor_Function fDescriptorFunction);
-
-/* Search through the $(LADSPA_PATH) (or a default path) for any
- LADSPA plugin libraries. Each plugin library is tested using
- dlopen() and dlsym(,"ladspa_descriptor"). After loading each
- library, the callback function is called to process it. This
- function leaves items passed to the callback function open. */
-void LADSPAPluginSearch(LADSPAPluginSearchCallbackFunction fCallbackFunction);
-
-/*****************************************************************************/
-
-#endif
-
-/* EOF */
projects / platform / upstream / gst-plugins-bad.git / commitdiff