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274 lines
7 KiB
C
274 lines
7 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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*
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* gst.c: Initialization and non-pipeline operations
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <stdlib.h>
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#include "gst_private.h"
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#include "gstcpu.h"
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#include "gsttype.h"
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#include "gstplugin.h"
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#include "gstbuffer.h"
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#include "gstbin.h"
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#include "gstpipeline.h"
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#include "gstthread.h"
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#include "gstqueue.h"
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#include "gsttypefind.h"
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#define MAX_PATH_SPLIT 16
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gchar *_gst_progname;
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extern gint _gst_trace_on;
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extern gboolean _gst_plugin_spew;
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static gboolean gst_init_check (int *argc, gchar ***argv);
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/**
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* gst_init:
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* @argc: pointer to application's argc
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* @argv: pointer to application's argv
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*
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* Initializes the GStreamer library, setting up internal path lists,
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* registering built-in elements, and loading standard plugins.
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*/
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void
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gst_init (int *argc, char **argv[])
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{
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GstTrace *gst_trace;
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GST_INFO (GST_CAT_GST_INIT, "Initializing GStreamer Core Library");
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if (!g_thread_supported ()) g_thread_init (NULL);
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gtk_init (argc,argv);
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if (!gst_init_check (argc,argv)) {
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exit (0);
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}
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_gst_cpu_initialize ();
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_gst_type_initialize ();
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_gst_props_initialize ();
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_gst_caps_initialize ();
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_gst_plugin_initialize ();
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_gst_buffer_initialize ();
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/* register some standard builtin types */
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gst_elementfactory_new ("bin", gst_bin_get_type (), &gst_bin_details);
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gst_elementfactory_new ("pipeline", gst_pipeline_get_type (), &gst_pipeline_details);
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gst_elementfactory_new ("thread", gst_thread_get_type (), &gst_thread_details);
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gst_elementfactory_new ("queue", gst_queue_get_type (), &gst_queue_details);
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gst_elementfactory_new ("typefind", gst_typefind_get_type (), &gst_typefind_details);
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_gst_trace_on = 0;
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if (_gst_trace_on) {
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gst_trace = gst_trace_new ("gst.trace",1024);
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gst_trace_set_default (gst_trace);
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}
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}
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static void
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gst_add_paths_func (gchar *pathlist)
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{
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gchar **paths;
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gint j = 0;
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gchar *lastpath = g_strdup (pathlist);
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while (lastpath) {
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paths = g_strsplit (lastpath, G_SEARCHPATH_SEPARATOR_S, MAX_PATH_SPLIT);
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g_free (lastpath);
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lastpath = NULL;
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while (paths[j]) {
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GST_INFO (GST_CAT_GST_INIT, "Adding plugin path: \"%s\"", paths[j]);
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gst_plugin_add_path (paths[j]);
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if (++j == MAX_PATH_SPLIT) {
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lastpath = g_strdup (paths[j]);
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g_strfreev (paths);
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j=0;
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break;
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}
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}
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}
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}
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/* returns FALSE if the program can be aborted */
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static gboolean
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gst_init_check (int *argc,
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gchar ***argv)
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{
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gboolean ret = TRUE;
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gboolean showhelp = FALSE;
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_gst_progname = NULL;
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if (argc && argv) {
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gint i, j, k;
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_gst_progname = g_strdup(*argv[0]);
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for (i=1; i< *argc; i++) {
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if (!strncmp ("--gst-info-mask=", (*argv)[i], 16)) {
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guint32 val;
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// handle either 0xHEX or dec
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if (*((*argv)[i]+17) == 'x') {
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sscanf ((*argv)[i]+18, "%08x", &val);
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} else {
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sscanf ((*argv)[i]+16, "%d", &val);
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}
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gst_info_set_categories (val);
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(*argv)[i] = NULL;
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}
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else if (!strncmp ("--gst-debug-mask=", (*argv)[i], 17)) {
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guint32 val;
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// handle either 0xHEX or dec
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if (*((*argv)[i]+18) == 'x') {
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sscanf ((*argv)[i]+19, "%08x", &val);
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} else {
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sscanf ((*argv)[i]+17, "%d", &val);
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}
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gst_debug_set_categories (val);
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(*argv)[i] = NULL;
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}
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else if (!strncmp ("--gst-mask=", (*argv)[i], 11)) {
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guint32 val;
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// handle either 0xHEX or dec
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if (*((*argv)[i]+12) == 'x') {
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sscanf ((*argv)[i]+13, "%08x", &val);
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} else {
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sscanf ((*argv)[i]+11, "%d", &val);
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}
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gst_debug_set_categories (val);
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gst_info_set_categories (val);
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(*argv)[i] = NULL;
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}
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else if (!strncmp ("--gst-plugin-spew", (*argv)[i], 17)) {
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_gst_plugin_spew = TRUE;
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(*argv)[i] = NULL;
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}
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else if (!strncmp ("--gst-plugin-path=", (*argv)[i], 17)) {
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gst_add_paths_func ((*argv)[i]+18);
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(*argv)[i] = NULL;
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}
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else if (!strncmp ("--help", (*argv)[i], 6)) {
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showhelp = TRUE;
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}
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}
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for (i = 1; i < *argc; i++) {
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for (k = i; k < *argc; k++)
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if ((*argv)[k] != NULL)
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break;
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if (k > i) {
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k -= i;
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for (j = i + k; j < *argc; j++)
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(*argv)[j-k] = (*argv)[j];
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*argc -= k;
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}
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}
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}
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if (_gst_progname == NULL) {
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_gst_progname = g_strdup("gstprog");
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}
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/* check for ENV variables */
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{
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gchar *plugin_path = g_getenv("GST_PLUGIN_PATH");
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gst_add_paths_func (plugin_path);
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}
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if (showhelp) {
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guint i;
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g_print ("usage %s [OPTION...]\n", _gst_progname);
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g_print ("\nGStreamer options\n");
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g_print (" --gst-info-mask=FLAGS GST info flags to set (current %08x)\n", gst_info_get_categories());
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g_print (" --gst-debug-mask=FLAGS GST debugging flags to set\n");
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g_print (" --gst-mask=FLAGS GST info *and* debug flags to set\n");
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g_print (" --gst-plugin-spew Enable printout of errors while loading GST plugins\n");
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g_print (" --gst-plugin-path=PATH Add directories separated with '%s' to the plugin search path\n",
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G_SEARCHPATH_SEPARATOR_S);
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g_print ("\n Mask (to be OR'ed) info/debug FLAGS \n");
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g_print ("--------------------------------------------------------\n");
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for (i = 0; i<GST_CAT_MAX_CATEGORY; i++) {
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#if GST_DEBUG_COLOR
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g_print (" 0x%08x %s%s \033[%sm%s\033[00m\n", 1<<i,
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(gst_info_get_categories() & (1<<i)?"(enabled)":" "),
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(gst_debug_get_categories() & (1<<i)?"/(enabled)":"/ "),
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_gst_category_colors[i], gst_get_category_name (i));
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#else
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g_print (" 0x%08x %s%s %s\n", 1<<i,
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(gst_info_get_categories() & (1<<i)?"(enabled)":" "),
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(gst_debug_get_categories() & (1<<i)?"/(enabled)":"/ "),
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gst_get_category_name (i));
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#endif
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}
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ret = FALSE;
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}
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return ret;
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}
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/**
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* gst_main:
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*
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* Enter the main GStreamer processing loop
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*/
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void
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gst_main (void)
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{
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gtk_main ();
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}
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/**
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* gst_main_quit:
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*
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* Exits the main GStreamer processing loop
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*/
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void
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gst_main_quit (void)
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{
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gtk_main_quit ();
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}
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