vc1parse: Add VC1 parser plugin

gst/videoparsers/Makefile.am

@@ -4,7 +4,8 @@ libgstvideoparsersbad_la_SOURCES = plugin.c \
 	h263parse.c gsth263parse.c \
 	gstdiracparse.c dirac_parse.c \
 	gsth264parse.c gstmpegvideoparse.c \
-	gstmpeg4videoparse.c
+	gstmpeg4videoparse.c \
+	gstvc1parse.c
 
 libgstvideoparsersbad_la_CFLAGS = \
 	$(GST_PLUGINS_BAD_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS) \
@@ -25,7 +26,8 @@ libgstvideoparsersbad_la_LIBTOOLFLAGS = --tag=disable-static
 noinst_HEADERS = gsth263parse.h h263parse.h \
 	gstdiracparse.h dirac_parse.h \
 	gsth264parse.h gstmpegvideoparse.h \
-	gstmpeg4videoparse.h
+	gstmpeg4videoparse.h \
+	gstvc1parse.h
 
 Android.mk: Makefile.am $(BUILT_SOURCES)
 	androgenizer \

gst/videoparsers/gstvc1parse.h

@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2011, Hewlett-Packard Development Company, L.P.
+ *   Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>, Collabora Ltd.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation
+ * version 2.1 of the License.
+ *
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ *
+ */
+
+#ifndef __GST_VC1_PARSE_H__
+#define __GST_VC1_PARSE_H__
+
+#include <gst/gst.h>
+#include <gst/base/gstbaseparse.h>
+#include <gst/codecparsers/gstvc1parser.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_VC1_PARSE \
+  (gst_vc1_parse_get_type())
+#define GST_VC1_PARSE(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VC1_PARSE,GstVC1Parse))
+#define GST_VC1_PARSE_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VC1_PARSE,GstVC1ParseClass))
+#define GST_IS_VC1_PARSE(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VC1_PARSE))
+#define GST_IS_VC1_PARSE_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VC1_PARSE))
+
+typedef enum {
+  VC1_HEADER_FORMAT_NONE = 0,
+  VC1_HEADER_FORMAT_ASF,
+  VC1_HEADER_FORMAT_SEQUENCE_LAYER
+} VC1HeaderFormat;
+
+typedef enum {
+  VC1_STREAM_FORMAT_BDU = 0,
+  VC1_STREAM_FORMAT_BDU_FRAME,
+  VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU,
+  VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU_FRAME,
+  VC1_STREAM_FORMAT_SEQUENCE_LAYER_RAW_FRAME,
+  VC1_STREAM_FORMAT_SEQUENCE_LAYER_FRAME_LAYER,
+  VC1_STREAM_FORMAT_ASF,
+  VC1_STREAM_FORMAT_FRAME_LAYER
+} VC1StreamFormat;
+
+/* FIXME move into baseparse, or anything equivalent;
+ * see https://bugzilla.gnome.org/show_bug.cgi?id=650093 */
+#define GST_BASE_PARSE_FRAME_FLAG_PARSING   0x10000
+
+typedef struct _GstVC1Parse GstVC1Parse;
+typedef struct _GstVC1ParseClass GstVC1ParseClass;
+
+struct _GstVC1Parse
+{
+  GstBaseParse baseparse;
+
+  /* Caps */
+  GstVC1Profile profile;
+  GstVC1Level level;
+  guint32 fourcc;
+  gint width, height;
+
+  gint fps_n, fps_d;
+  gboolean fps_from_caps;
+  gint par_n, par_d;
+  gboolean par_from_caps;
+
+  /* TRUE if we should negotiate with downstream */
+  gboolean renegotiate;
+  /* TRUE if the srcpads should be updated */
+  gboolean update_caps;
+
+  VC1HeaderFormat input_header_format;
+  VC1HeaderFormat output_header_format;
+  VC1StreamFormat input_stream_format;
+  VC1StreamFormat output_stream_format;
+  gboolean detecting_stream_format;
+
+  GstVC1SeqHdr seq_hdr;
+  GstBuffer *seq_hdr_buffer;
+  GstBuffer *entrypoint_buffer;
+
+  GstVC1SeqLayer seq_layer;
+  GstBuffer *seq_layer_buffer;
+
+  /* Metadata about the currently parsed frame, only
+   * valid if the GstBaseParseFrame has the
+   * GST_BASE_PARSE_FRAME_FLAG_PARSING flag */
+  GstVC1StartCode startcode;
+};
+
+struct _GstVC1ParseClass
+{
+  GstBaseParseClass parent_class;
+};
+
+G_END_DECLS
+
+GType gst_vc1_parse_get_type (void);
+
+#endif /* __GST_VC1_PARSE_H__ */

gst/videoparsers/plugin.c

@@ -27,6 +27,7 @@
 #include "gstdiracparse.h"
 #include "gstmpegvideoparse.h"
 #include "gstmpeg4videoparse.h"
+#include "gstvc1parse.h"
 
 static gboolean
 plugin_init (GstPlugin * plugin)
@@ -43,6 +44,8 @@ plugin_init (GstPlugin * plugin)
       GST_RANK_PRIMARY + 1, GST_TYPE_MPEGVIDEO_PARSE);
   ret |= gst_element_register (plugin, "mpeg4videoparse",
       GST_RANK_PRIMARY + 1, GST_TYPE_MPEG4VIDEO_PARSE);
+  ret |= gst_element_register (plugin, "vc1parse",
+      GST_RANK_PRIMARY + 1, GST_TYPE_VC1_PARSE);
 
   return ret;
 }