Added support for PNG/XMP. Indentation. And fixed pull mode to parse the file.

Original commit message from CVS:
Added support for PNG/XMP. Indentation. And fixed pull mode to parse the file.

1 files changed, 81 insertions, 0 deletions

diff --git a/ext/metadata/metadataparsepng.h b/ext/metadata/metadataparsepng.h
new file mode 100644
index 00000000..99f0f7ea
--- /dev/null
+++ b/ext/metadata/metadataparsepng.h
@@ -0,0 +1,81 @@
+/*
+ * 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.
+ */
+
+#ifndef __METADATAPARSE_PNG_H__
+#define __METADATAPARSE_PNG_H__
+
+#include <gst/base/gstadapter.h>
+
+G_BEGIN_DECLS
+
+typedef enum _tag_PngState
+{
+  PNG_NULL,
+  PNG_READING,
+  PNG_JUMPING,
+  PNG_XMP,
+  PNG_DONE
+} PngState;
+
+
+typedef struct _tag_PngData
+{
+  PngState state;
+  GstAdapter **adpt_xmp;
+  guint32 read;
+} PngData;
+
+
+extern void
+metadataparse_png_init (PngData * png_data, GstAdapter ** adpt_exif,
+    GstAdapter ** adpt_iptc, GstAdapter ** adpt_xmp);
+
+extern void metadataparse_png_dispose (PngData * png_data);
+
+
+int
+metadataparse_png_parse (PngData * png_data, guint8 * buf,
+    guint32 * bufsize, guint8 ** next_start, guint32 * next_size);
+
+G_END_DECLS
+#endif /* __METADATAPARSE_PNG_H__ */