mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-23 00:36:51 +00:00
ef63c32778
Original commit message from CVS: This is a rather large patch. Switched on -Wall compiler flag and fixed the warnings. Made the Video for Linux more like it should be.
161 lines
4 KiB
C
161 lines
4 KiB
C
/* Gnome-Streamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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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/* TODO:
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* probably should set up a hash table for the type id's, since currently
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* it's a rather pathetic linear search. Eventually there may be dozens
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* of id's, but in reality there are only so many instances of lookup, so
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* I'm not overly worried yet...
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*/
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#include <gst/gst.h>
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#include <string.h>
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/* global list of registered types */
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GList *_gst_types;
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guint16 _gst_maxtype;
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void _gst_type_initialize() {
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_gst_types = NULL;
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_gst_maxtype = 1; /* type 0 is undefined */
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// gst_type_audio_register();
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}
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guint16 gst_type_register(GstTypeFactory *factory) {
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guint16 id;
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GstType *type;
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g_return_val_if_fail(factory != NULL, 0);
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// id = gst_type_find_by_mime(factory->mime);
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id = 0;
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if (!id) {
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type = (GstType *)g_malloc(sizeof(GstType));
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type->id = _gst_maxtype++;
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type->mime = factory->mime;
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type->exts = factory->exts;
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type->typefindfunc = factory->typefindfunc;
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type->srcs = NULL;
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type->sinks = NULL;
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_gst_types = g_list_prepend(_gst_types,type);
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id = type->id;
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} else {
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type = gst_type_find_by_id(id);
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/* now we want to try to merge the types and return the original */
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/* FIXME: do extension merging here, not that easy */
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/* if there is no existing typefind function, try to use new one */
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if (!type->typefindfunc && factory->typefindfunc)
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type->typefindfunc = factory->typefindfunc;
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}
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return id;
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}
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guint16 gst_type_find_by_mime(gchar *mime) {
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GList *walk = _gst_types;
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GstType *type;
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gint typelen,mimelen;
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gchar *search, *found;
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// DEBUG("searching for '%s'\n",mime);
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mimelen = strlen(mime);
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while (walk) {
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type = (GstType *)walk->data;
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search = type->mime;
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// DEBUG("checking against '%s'\n",search);
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typelen = strlen(search);
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while ((search - type->mime) < typelen) {
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found = strstr(search,mime);
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/* if the requested mime is in the list */
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if (found) {
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if ((*(found + mimelen) == ' ') ||
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(*(found + mimelen) == ',') ||
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(*(found + mimelen) == '\0')) {
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return type->id;
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} else {
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search = found + mimelen;
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}
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} else
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search += mimelen;
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}
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walk = g_list_next(walk);
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}
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return 0;
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}
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GstType *gst_type_find_by_id(guint16 id) {
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GList *walk = _gst_types;
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GstType *type;
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while (walk) {
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type = (GstType *)walk->data;
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if (type->id == id)
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return type;
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walk = g_list_next(walk);
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}
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return NULL;
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}
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void gst_type_add_src(guint16 id,GstElementFactory *src) {
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GstType *type = gst_type_find_by_id(id);
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g_return_if_fail(type != NULL);
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g_return_if_fail(src != NULL);
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type->srcs = g_list_prepend(type->srcs,src);
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}
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void gst_type_add_sink(guint16 id,GstElementFactory *sink) {
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GstType *type = gst_type_find_by_id(id);
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g_return_if_fail(type != NULL);
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g_return_if_fail(sink != NULL);
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type->sinks = g_list_prepend(type->sinks,sink);
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}
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GList *gst_type_get_srcs(guint16 id) {
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GstType *type = gst_type_find_by_id(id);
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g_return_val_if_fail(type != NULL, NULL);
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return type->srcs;
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}
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GList *gst_type_get_sinks(guint16 id) {
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GstType *type = gst_type_find_by_id(id);
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g_return_val_if_fail(type != 0, NULL);
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return type->sinks;
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}
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GList *gst_type_get_list() {
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return _gst_types;
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}
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