1 files changed, 261 insertions, 0 deletions
diff --git a/ext/metadata/metadataxmp.c b/ext/metadata/metadataxmp.c
new file mode 100644
index 00000000..900a454a
--- /dev/null
+++ b/ext/metadata/metadataxmp.c
@@ -0,0 +1,261 @@
+/*
+ * GStreamer
+ * Copyright 2007 Edgard Lima <edgard.lima@indt.org.br>
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
+ * which case the following provisions apply instead of the ones
+ * mentioned above:
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "metadataxmp.h"
+#include "metadataparseutil.h"
+#include "metadatatags.h"
+
+GST_DEBUG_CATEGORY (gst_metadata_xmp_debug);
+#define GST_CAT_DEFAULT gst_metadata_xmp_debug
+
+#ifndef HAVE_XMP
+
+void
+metadataparse_xmp_tag_list_add (GstTagList * taglist, GstTagMergeMode mode,
+    GstAdapter * adapter)
+{
+
+  GST_LOG ("XMP not defined, here I should send just one tag as whole chunk");
+
+  metadataparse_util_tag_list_add_chunk (taglist, mode, GST_TAG_XMP, adapter);
+
+}
+
+gboolean
+metadataparse_xmp_init (void)
+{
+  return TRUE;
+}
+
+void
+metadataparse_xmp_dispose (void)
+{
+  return;
+}
+
+void
+metadatamux_xmp_create_chunk_from_tag_list (GstAdapter ** adapter,
+    GstTagList * taglist)
+{
+  /* do nothing */
+}
+
+#else /* ifndef HAVE_XMP */
+
+#include <xmp.h>
+
+#define XMP_SCHEMA_NODE 0x80000000UL
+
+void
+metadataparse_xmp_iter_array (XmpPtr xmp, const char *schema, const char *path);
+
+static void
+metadataparse_xmp_iter_simple (const char *schema, const char *path,
+    const char *value);
+
+static void metadataparse_xmp_iter (XmpPtr xmp, XmpIteratorPtr iter);
+
+gboolean
+metadataparse_xmp_init (void)
+{
+  return xmp_init ();
+}
+
+void
+metadataparse_xmp_dispose (void)
+{
+  xmp_terminate ();
+}
+
+void
+metadataparse_xmp_tag_list_add (GstTagList * taglist, GstTagMergeMode mode,
+    GstAdapter * adapter)
+{
+  const guint8 *buf;
+  guint32 size;
+  XmpPtr xmp = NULL;
+  XmpIteratorPtr xmp_iter = NULL;
+
+  if (adapter == NULL || (size = gst_adapter_available (adapter)) == 0) {
+    goto done;
+  }
+
+  /* add chunk tag */
+  metadataparse_util_tag_list_add_chunk (taglist, mode, GST_TAG_XMP, adapter);
+
+  buf = gst_adapter_peek (adapter, size);
+
+  xmp = xmp_new (buf, size);
+  if (!xmp)
+    goto done;
+
+  xmp_iter = xmp_iterator_new (xmp, NULL, NULL, XMP_ITER_JUSTCHILDREN);
+
+  if (!xmp_iter)
+    goto done;
+
+  metadataparse_xmp_iter (xmp, xmp_iter);
+
+done:
+
+  if (xmp_iter) {
+    xmp_iterator_free (xmp_iter);
+  }
+
+  if (xmp) {
+    xmp_free (xmp);
+  }
+
+  return;
+
+}
+
+void
+metadataparse_xmp_iter_simple_qual (const char *schema, const char *path,
+    const char *value)
+{
+  GString *string = g_string_new (path);
+  gchar *ch;
+
+  ch = string->str + string->len - 3;
+  while (ch != string->str) {
+    if (*ch == '[') {
+      *ch = '\0';
+    }
+    --ch;
+  }
+
+  GST_LOG ("  %s = %s\n", string->str, value);
+  g_string_free (string, TRUE);
+}
+
+void
+metadataparse_xmp_iter_simple (const char *schema, const char *path,
+    const char *value)
+{
+  GST_LOG ("  %s = %s\n", path, value);
+}
+
+void
+metadataparse_xmp_iter_array (XmpPtr xmp, const char *schema, const char *path)
+{
+
+  XmpIteratorPtr xmp_iter = NULL;
+
+  xmp_iter = xmp_iterator_new (xmp, schema, path, XMP_ITER_JUSTCHILDREN);
+
+  if (xmp_iter) {
+    metadataparse_xmp_iter (xmp, xmp_iter);
+
+    xmp_iterator_free (xmp_iter);
+  }
+
+}
+
+void
+metadataparse_xmp_iter (XmpPtr xmp, XmpIteratorPtr iter)
+{
+  XmpStringPtr xstr_schema = xmp_string_new ();
+  XmpStringPtr xstr_path = xmp_string_new ();
+  XmpStringPtr xstr_prop = xmp_string_new ();
+  uint32_t opt = 0;
+
+  while (xmp_iterator_next (iter, xstr_schema, xstr_path, xstr_prop, &opt)) {
+    const char *schema = xmp_string_cstr (xstr_schema);
+    const char *path = xmp_string_cstr (xstr_path);
+    const char *value = xmp_string_cstr (xstr_prop);
+
+    if (XMP_IS_NODE_SCHEMA (opt)) {
+      GST_LOG ("%s\n", schema);
+      metadataparse_xmp_iter_array (xmp, schema, path);
+    } else if (XMP_IS_PROP_SIMPLE (opt)) {
+      if (strcmp (path, "") != 0) {
+        if (XMP_HAS_PROP_QUALIFIERS (opt)) {
+          metadataparse_xmp_iter_simple_qual (schema, path, value);
+        } else {
+          metadataparse_xmp_iter_simple (schema, path, value);
+        }
+      }
+    } else if (XMP_IS_PROP_ARRAY (opt)) {
+      if (XMP_IS_ARRAY_ALTTEXT (opt)) {
+        metadataparse_xmp_iter_array (xmp, schema, path);
+        xmp_iterator_skip (iter, XMP_ITER_SKIPSUBTREE);
+      } else {
+        metadataparse_xmp_iter_array (xmp, schema, path);
+        xmp_iterator_skip (iter, XMP_ITER_SKIPSUBTREE);
+      }
+    }
+
+
+
+  }
+
+  if (xstr_prop) {
+    xmp_string_free (xstr_prop);
+  }
+  if (xstr_path) {
+    xmp_string_free (xstr_path);
+  }
+  if (xstr_schema) {
+    xmp_string_free (xstr_schema);
+  }
+}
+
+void
+metadatamux_xmp_create_chunk_from_tag_list (GstAdapter ** adapter,
+    GstTagList * taglist)
+{
+  if (adapter == NULL)
+    goto done;
+
+  if (*adapter)
+    g_object_unref (*adapter);
+
+  *adapter = gst_adapter_new ();
+
+done:
+
+  return;
+}
+
+#endif /* else (ifndef HAVE_XMP) */