Initial matroska demuxer.

It works with some test streams.
Unsupported stuff:
  seeking
  lots of codecs
  subtitles
  metadata
  ...

CVS patchset: 5998
CVS date: 2004/01/05 00:40:54

1 files changed, 103 insertions, 0 deletions

diff --git a/src/demuxers/ebml.h b/src/demuxers/ebml.h
new file mode 100644
index 000000000..9b3af4efe
--- /dev/null
+++ b/src/demuxers/ebml.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2000-2003 the xine project
+ *
+ * This file is part of xine, a free video player.
+ *
+ * xine is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * xine 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
+ *
+ * EBML parser
+ * a lot of ideas from the gstreamer parser
+ *
+ * $Id: ebml.h,v 1.1 2004/01/05 00:40:54 tmattern Exp $
+ *
+ */
+#ifndef EBML_H
+#define EBML_H
+
+#define EBML_STACK_SIZE 10
+#define EBML_VERSION 1
+
+/* EBML IDs */
+#define EBML_ID_EBML                0x1A45DFA3
+#define EBML_ID_EBMLVERSION         0x4286
+#define EBML_ID_EBMLREADVERSION     0x42F7
+#define EBML_ID_EBMLMAXIDLENGTH     0x42F2
+#define EBML_ID_EBMLMAXSIZELENGTH   0x42F3
+#define EBML_ID_DOCTYPE             0x4282
+#define EBML_ID_DOCTYPEVERSION      0x4287
+#define EBML_ID_DOCTYPEREADVERSION  0x4285
+
+
+typedef struct ebml_elem_s {
+  uint32_t  id;
+  off_t     start;
+  uint64_t  len;
+} ebml_elem_t;
+
+typedef struct ebml_parser_s {
+
+  /* xine stuff */
+  xine_t                *xine;
+  input_plugin_t        *input;
+  
+  /* EBML Parser Stack Management */
+  ebml_elem_t            elem_stack[EBML_STACK_SIZE];
+  int                    level;
+
+  /* EBML Header Infos */
+  uint64_t               version;
+  uint64_t               read_version;
+  uint64_t               max_id_len;
+  uint64_t               max_size_len;
+  char                  *doctype;
+  uint64_t               doctype_version;
+  uint64_t               doctype_read_version;
+  
+} ebml_parser_t;
+
+
+ebml_parser_t *new_ebml_parser (xine_t *xine, input_plugin_t *input);
+
+void dispose_ebml_parser (ebml_parser_t *ebml);
+
+/* check EBML header */
+int ebml_check_header(ebml_parser_t *read);
+
+
+/* Element Header */
+int ebml_read_elem_head(ebml_parser_t *ebml, ebml_elem_t *elem);
+
+uint32_t ebml_get_next_level(ebml_parser_t *ebml, ebml_elem_t *elem);
+
+int ebml_skip(ebml_parser_t *ebml, ebml_elem_t *elem);
+
+/* EBML types */
+int ebml_read_uint(ebml_parser_t *ebml, ebml_elem_t *elem, uint64_t *val);
+
+int ebml_read_sint(ebml_parser_t *ebml, ebml_elem_t *elem, int64_t *val);
+
+int ebml_read_float(ebml_parser_t *ebml, ebml_elem_t  *elem, double *val);
+
+int ebml_read_ascii(ebml_parser_t *ebml, ebml_elem_t *elem, char *str);
+
+int ebml_read_utf8(ebml_parser_t *ebml, ebml_elem_t *elem, char *str);
+
+int ebml_read_date(ebml_parser_t *ebml, ebml_elem_t *elem, int64_t *date);
+
+int ebml_read_master(ebml_parser_t *ebml, ebml_elem_t *elem);
+
+int ebml_read_binary(ebml_parser_t *ebml, ebml_elem_t *elem, uint8_t *binary);
+
+#endif /* EBML_H */