author | Pat Downey <patd@symbian.org> |
Wed, 01 Sep 2010 12:16:41 +0100 | |
branch | RCL_3 |
changeset 30 | 7e817e7e631c |
parent 29 | 567bb019e3e3 |
permissions | -rw-r--r-- |
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/* GStreamer |
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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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#ifdef __SYMBIAN32__ |
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#include <gst_global.h> |
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#endif |
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#include <gst/gst.h> |
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#define GST_TYPE_MEM_INDEX \ |
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(gst_index_get_type ()) |
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#define GST_MEM_INDEX(obj) \ |
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MEM_INDEX, GstMemIndex)) |
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#define GST_MEM_INDEX_CLASS(klass) \ |
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(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_MEM_INDEX, GstMemIndexClass)) |
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#define GST_IS_MEM_INDEX(obj) \ |
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MEM_INDEX)) |
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#define GST_IS_MEM_INDEX_CLASS(klass) \ |
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(GST_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_MEM_INDEX)) |
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|
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/* |
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* Object model: |
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* |
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* All entries are simply added to a GList first. Then we build |
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* an index to each entry for each id/format |
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* |
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* |
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* memindex |
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* -----------------------------... |
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* ! ! |
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* id1 id2 |
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* ------------ |
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* ! ! |
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* format1 format2 |
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* ! ! |
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* GTree GTree |
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* |
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* |
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* The memindex creates a MemIndexId object for each writer id, a |
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* Hashtable is kept to map the id to the MemIndexId |
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* |
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* The MemIndexId keeps a MemIndexFormatIndex for each format the |
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* specific writer wants indexed. |
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* |
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* The MemIndexFormatIndex keeps all the values of the particular |
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* format in a GTree, The values of the GTree point back to the entry. |
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* |
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* Finding a value for an id/format requires locating the correct GTree, |
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* then do a lookup in the Tree to get the required value. |
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*/ |
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|
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typedef struct |
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{ |
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GstFormat format; |
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gint offset; |
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GTree *tree; |
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} |
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GstMemIndexFormatIndex; |
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|
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typedef struct |
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{ |
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gint id; |
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GHashTable *format_index; |
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} |
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GstMemIndexId; |
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|
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typedef struct _GstMemIndex GstMemIndex; |
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typedef struct _GstMemIndexClass GstMemIndexClass; |
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struct _GstMemIndex |
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{ |
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GstIndex parent; |
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|
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GList *associations; |
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GHashTable *id_index; |
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}; |
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struct _GstMemIndexClass |
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{ |
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GstIndexClass parent_class; |
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}; |
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/* Index signals and args */ |
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enum |
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{ |
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LAST_SIGNAL |
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}; |
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enum |
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{ |
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ARG_0, |
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/* FILL ME */ |
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}; |
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110 |
|
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static void gst_mem_index_class_init (GstMemIndexClass * klass); |
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static void gst_mem_index_init (GstMemIndex * index); |
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static void gst_mem_index_finalize (GObject * object); |
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114 |
|
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static void gst_mem_index_add_entry (GstIndex * index, GstIndexEntry * entry); |
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static GstIndexEntry *gst_mem_index_get_assoc_entry (GstIndex * index, gint id, |
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GstIndexLookupMethod method, GstAssocFlags flags, |
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GstFormat format, gint64 value, GCompareDataFunc func, gpointer user_data); |
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119 |
|
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#define CLASS(mem_index) GST_MEM_INDEX_CLASS (G_OBJECT_GET_CLASS (mem_index)) |
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121 |
|
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static GstIndex *parent_class = NULL; |
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123 |
|
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/*static guint gst_mem_index_signals[LAST_SIGNAL] = { 0 }; */ |
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125 |
|
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static GType |
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gst_mem_index_get_type (void) |
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{ |
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static GType mem_index_type = 0; |
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130 |
|
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if (!mem_index_type) { |
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static const GTypeInfo mem_index_info = { |
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sizeof (GstMemIndexClass), |
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NULL, |
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NULL, |
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(GClassInitFunc) gst_mem_index_class_init, |
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NULL, |
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NULL, |
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sizeof (GstMemIndex), |
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1, |
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(GInstanceInitFunc) gst_mem_index_init, |
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NULL |
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}; |
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144 |
|
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mem_index_type = |
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g_type_register_static (GST_TYPE_INDEX, "GstMemIndex", &mem_index_info, |
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0); |
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} |
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return mem_index_type; |
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} |
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151 |
|
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static void |
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gst_mem_index_class_init (GstMemIndexClass * klass) |
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154 |
{ |
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GObjectClass *gobject_class; |
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GstIndexClass *gstindex_class; |
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157 |
|
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gobject_class = (GObjectClass *) klass; |
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gstindex_class = (GstIndexClass *) klass; |
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160 |
|
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parent_class = g_type_class_peek_parent (klass); |
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162 |
|
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gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_mem_index_finalize); |
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|
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gstindex_class->add_entry = GST_DEBUG_FUNCPTR (gst_mem_index_add_entry); |
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gstindex_class->get_assoc_entry = |
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GST_DEBUG_FUNCPTR (gst_mem_index_get_assoc_entry); |
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} |
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169 |
|
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static void |
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gst_mem_index_init (GstMemIndex * index) |
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{ |
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GST_DEBUG ("created new mem index"); |
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174 |
|
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index->associations = NULL; |
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index->id_index = g_hash_table_new (g_int_hash, g_int_equal); |
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} |
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178 |
|
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static void |
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gst_mem_index_free_format (gpointer key, gpointer value, gpointer user_data) |
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181 |
{ |
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GstMemIndexFormatIndex *index = (GstMemIndexFormatIndex *) value; |
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183 |
|
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if (index->tree) { |
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g_tree_destroy (index->tree); |
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} |
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|
30 | 188 |
g_free (index); |
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} |
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190 |
|
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191 |
static void |
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gst_mem_index_free_id (gpointer key, gpointer value, gpointer user_data) |
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{ |
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GstMemIndexId *id_index = (GstMemIndexId *) value; |
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195 |
|
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if (id_index->format_index) { |
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g_hash_table_foreach (id_index->format_index, gst_mem_index_free_format, |
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NULL); |
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g_hash_table_destroy (id_index->format_index); |
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id_index->format_index = NULL; |
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} |
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|
30 | 203 |
g_free (id_index); |
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} |
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205 |
|
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static void |
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gst_mem_index_finalize (GObject * object) |
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{ |
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GstMemIndex *memindex = GST_MEM_INDEX (object); |
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|
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/* Delete the trees referencing the associations first */ |
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if (memindex->id_index) { |
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g_hash_table_foreach (memindex->id_index, gst_mem_index_free_id, NULL); |
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|
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g_hash_table_destroy (memindex->id_index); |
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|
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memindex->id_index = NULL; |
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} |
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|
217 |
|
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/* Then delete the associations themselves */ |
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if (memindex->associations) { |
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g_list_foreach (memindex->associations, (GFunc) gst_index_entry_free, NULL); |
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|
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g_list_free (memindex->associations); |
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|
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memindex->associations = NULL; |
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} |
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224 |
|
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G_OBJECT_CLASS (parent_class)->finalize (object); |
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|
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} |
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|
227 |
|
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228 |
static void |
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gst_mem_index_add_id (GstIndex * index, GstIndexEntry * entry) |
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230 |
{ |
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GstMemIndex *memindex = GST_MEM_INDEX (index); |
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GstMemIndexId *id_index; |
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233 |
|
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id_index = g_hash_table_lookup (memindex->id_index, &entry->id); |
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|
235 |
|
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if (!id_index) { |
30 | 237 |
id_index = g_new0 (GstMemIndexId, 1); |
0
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238 |
|
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id_index->id = entry->id; |
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|
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id_index->format_index = g_hash_table_new (g_int_hash, g_int_equal); |
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|
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g_hash_table_insert (memindex->id_index, &id_index->id, id_index); |
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|
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} |
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} |
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|
244 |
|
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static gint |
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mem_index_compare (gconstpointer a, gconstpointer b, gpointer user_data) |
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247 |
{ |
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GstMemIndexFormatIndex *index = user_data; |
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|
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gint64 val1, val2; |
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|
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gint64 diff; |
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|
251 |
|
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|
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val1 = GST_INDEX_ASSOC_VALUE (((GstIndexEntry *) a), index->offset); |
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|
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val2 = GST_INDEX_ASSOC_VALUE (((GstIndexEntry *) b), index->offset); |
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|
254 |
|
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|
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diff = (val2 - val1); |
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|
256 |
|
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|
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return (diff == 0 ? 0 : (diff > 0 ? 1 : -1)); |
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|
258 |
} |
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|
259 |
|
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260 |
static void |
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|
261 |
gst_mem_index_index_format (GstMemIndexId * id_index, GstIndexEntry * entry, |
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|
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gint assoc) |
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|
263 |
{ |
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|
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GstMemIndexFormatIndex *index; |
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|
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GstFormat *format; |
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|
266 |
|
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|
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format = &GST_INDEX_ASSOC_FORMAT (entry, assoc); |
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|
268 |
|
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|
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index = g_hash_table_lookup (id_index->format_index, format); |
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|
270 |
|
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|
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if (!index) { |
30 | 272 |
index = g_new0 (GstMemIndexFormatIndex, 1); |
0
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|
273 |
|
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|
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index->format = *format; |
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|
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index->offset = assoc; |
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|
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index->tree = g_tree_new_with_data (mem_index_compare, index); |
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|
277 |
|
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|
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g_hash_table_insert (id_index->format_index, &index->format, index); |
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|
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} |
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|
280 |
|
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|
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g_tree_insert (index->tree, entry, entry); |
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|
282 |
} |
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|
283 |
|
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|
284 |
static void |
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|
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gst_mem_index_add_association (GstIndex * index, GstIndexEntry * entry) |
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|
286 |
{ |
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|
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GstMemIndex *memindex = GST_MEM_INDEX (index); |
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|
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GstMemIndexId *id_index; |
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|
289 |
|
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|
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memindex->associations = g_list_prepend (memindex->associations, entry); |
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|
291 |
|
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|
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id_index = g_hash_table_lookup (memindex->id_index, &entry->id); |
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|
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if (id_index) { |
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|
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gint i; |
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|
295 |
|
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|
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for (i = 0; i < GST_INDEX_NASSOCS (entry); i++) { |
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|
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gst_mem_index_index_format (id_index, entry, i); |
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|
298 |
} |
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|
299 |
} |
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|
300 |
} |
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|
301 |
|
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|
302 |
static void |
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|
303 |
gst_mem_index_add_object (GstIndex * index, GstIndexEntry * entry) |
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|
304 |
{ |
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|
305 |
} |
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|
306 |
|
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|
307 |
static void |
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|
308 |
gst_mem_index_add_format (GstIndex * index, GstIndexEntry * entry) |
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|
309 |
{ |
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|
310 |
} |
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|
311 |
|
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|
312 |
static void |
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|
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gst_mem_index_add_entry (GstIndex * index, GstIndexEntry * entry) |
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|
314 |
{ |
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|
315 |
GST_LOG_OBJECT (index, "added this entry"); |
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|
316 |
|
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|
317 |
switch (entry->type) { |
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|
318 |
case GST_INDEX_ENTRY_ID: |
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|
319 |
gst_mem_index_add_id (index, entry); |
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Revision: 200949
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|
320 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
321 |
case GST_INDEX_ENTRY_ASSOCIATION: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
322 |
gst_mem_index_add_association (index, entry); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
323 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
324 |
case GST_INDEX_ENTRY_OBJECT: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
325 |
gst_mem_index_add_object (index, entry); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
326 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
327 |
case GST_INDEX_ENTRY_FORMAT: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
328 |
gst_mem_index_add_format (index, entry); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
329 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
330 |
default: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
331 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
332 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
333 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
334 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
335 |
typedef struct |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
336 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
337 |
gint64 value; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
338 |
GstMemIndexFormatIndex *index; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
339 |
gboolean exact; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
340 |
GstIndexEntry *lower; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
341 |
gint64 low_diff; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
342 |
GstIndexEntry *higher; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
343 |
gint64 high_diff; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
344 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
345 |
GstMemIndexSearchData; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
346 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
347 |
static gint |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
348 |
mem_index_search (gconstpointer a, gconstpointer b) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
349 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
350 |
GstMemIndexSearchData *data = (GstMemIndexSearchData *) b; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
351 |
GstMemIndexFormatIndex *index = data->index; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
352 |
gint64 val1, val2; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
353 |
gint64 diff; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
354 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
355 |
val1 = GST_INDEX_ASSOC_VALUE (((GstIndexEntry *) a), index->offset); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
356 |
val2 = data->value; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
357 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
358 |
diff = (val1 - val2); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
359 |
if (diff == 0) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
360 |
return 0; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
361 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
362 |
/* exact matching, don't update low/high */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
363 |
if (data->exact) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
364 |
return (diff > 0 ? 1 : -1); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
365 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
366 |
if (diff < 0) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
367 |
if (diff > data->low_diff) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
368 |
data->low_diff = diff; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
369 |
data->lower = (GstIndexEntry *) a; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
370 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
371 |
diff = -1; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
372 |
} else { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
373 |
if (diff < data->high_diff) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
374 |
data->high_diff = diff; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
375 |
data->higher = (GstIndexEntry *) a; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
376 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
377 |
diff = 1; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
378 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
379 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
380 |
return diff; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
381 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
382 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
383 |
static GstIndexEntry * |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
384 |
gst_mem_index_get_assoc_entry (GstIndex * index, gint id, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
385 |
GstIndexLookupMethod method, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
386 |
GstAssocFlags flags, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
387 |
GstFormat format, gint64 value, GCompareDataFunc func, gpointer user_data) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
388 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
389 |
GstMemIndex *memindex = GST_MEM_INDEX (index); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
390 |
GstMemIndexId *id_index; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
391 |
GstMemIndexFormatIndex *format_index; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
392 |
GstIndexEntry *entry; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
393 |
GstMemIndexSearchData data; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
394 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
395 |
id_index = g_hash_table_lookup (memindex->id_index, &id); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
396 |
if (!id_index) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
397 |
return NULL; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
398 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
399 |
format_index = g_hash_table_lookup (id_index->format_index, &format); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
400 |
if (!format_index) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
401 |
return NULL; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
402 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
403 |
data.value = value; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
404 |
data.index = format_index; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
405 |
data.exact = (method == GST_INDEX_LOOKUP_EXACT); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
406 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
407 |
/* setup data for low/high checks if we are not looking |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
408 |
* for an exact match */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
409 |
if (!data.exact) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
410 |
data.low_diff = G_MININT64; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
411 |
data.lower = NULL; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
412 |
data.high_diff = G_MAXINT64; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
413 |
data.higher = NULL; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
414 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
415 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
416 |
entry = g_tree_search (format_index->tree, mem_index_search, &data); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
417 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
418 |
/* get the low/high values if we're not exact */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
419 |
if (entry == NULL && !data.exact) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
420 |
if (method == GST_INDEX_LOOKUP_BEFORE) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
421 |
entry = data.lower; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
422 |
else if (method == GST_INDEX_LOOKUP_AFTER) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
423 |
entry = data.higher; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
424 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
425 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
426 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
427 |
if (entry) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
428 |
if ((GST_INDEX_ASSOC_FLAGS (entry) & flags) != flags) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
429 |
GList *l_entry = g_list_find (memindex->associations, entry); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
430 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
431 |
entry = NULL; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
432 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
433 |
while (l_entry) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
434 |
entry = (GstIndexEntry *) l_entry->data; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
435 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
436 |
if (entry->id == id && (GST_INDEX_ASSOC_FLAGS (entry) & flags) == flags) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
437 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
438 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
439 |
if (method == GST_INDEX_LOOKUP_BEFORE) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
440 |
l_entry = g_list_next (l_entry); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
441 |
else if (method == GST_INDEX_LOOKUP_AFTER) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
442 |
l_entry = g_list_previous (l_entry); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
443 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
444 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
445 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
446 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
447 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
448 |
return entry; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
449 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
450 |
#ifdef __SYMBIAN32__ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
451 |
EXPORT_C |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
452 |
#endif |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
453 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
454 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
455 |
gboolean |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
456 |
gst_mem_index_plugin_init (GstPlugin * plugin) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
457 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
458 |
GstIndexFactory *factory; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
459 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
460 |
factory = gst_index_factory_new ("memindex", |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
461 |
"A index that stores entries in memory", gst_mem_index_get_type ()); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
462 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
463 |
if (factory == NULL) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
464 |
g_warning ("failed to create memindex factory"); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
465 |
return FALSE; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
466 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
467 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
468 |
GST_PLUGIN_FEATURE (factory)->plugin_name = g_strdup (plugin->desc.name); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
469 |
GST_PLUGIN_FEATURE (factory)->loaded = TRUE; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
470 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
471 |
gst_registry_add_feature (gst_registry_get_default (), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
472 |
GST_PLUGIN_FEATURE (factory)); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
473 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
474 |
return TRUE; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
475 |
} |