vdpau: extract mpeg version

sys/vdpau/gstvdpaudecoder.c

@@ -286,6 +286,7 @@ static gboolean
 gst_vdpaudecoder_sink_set_caps (GstPad * pad, GstCaps * caps)
 {
   GstVdpauDecoder *dec = GST_VDPAU_DECODER (GST_OBJECT_PARENT (pad));
+  GstVdpauDecoderClass *dec_class = GST_VDPAU_DECODER_GET_CLASS (dec);
 
   GstCaps *src_caps, *new_caps;
   GstStructure *structure;
@@ -324,6 +325,9 @@ gst_vdpaudecoder_sink_set_caps (GstPad * pad, GstCaps * caps)
   dec->height = height;
   dec->format = fourcc_format;
 
+  if (dec_class->set_caps && !dec_class->set_caps (dec, caps))
+    return FALSE;
+
   return TRUE;
 }
 
@@ -404,6 +408,7 @@ gst_vdpaudecoder_init (GstVdpauDecoder * dec, GstVdpauDecoderClass * klass)
       (GST_ELEMENT_CLASS (klass), "sink"), "sink");
   gst_pad_set_setcaps_function (dec->sink, gst_vdpaudecoder_sink_set_caps);
   gst_element_add_pad (GST_ELEMENT (dec), dec->sink);
+  gst_pad_set_active (dec->sink, TRUE);
 }
 
 static void

sys/vdpau/gstvdpaudecoder.h

@@ -29,16 +29,12 @@
 
 G_BEGIN_DECLS
 
-#define GST_TYPE_VDPAU_DECODER \
+#define GST_TYPE_VDPAU_DECODER            (gst_vdpaudecoder_get_type())
-  (gst_vdpaudecoder_get_type())
+#define GST_VDPAU_DECODER(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VDPAU_DECODER,GstVdpauDecoder))
-#define GST_VDPAU_DECODER(obj) \
+#define GST_VDPAU_DECODER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VDPAU_DECODER,GstVdpauDecoderClass))
-  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VDPAU_DECODER,GstVdpauDecoder))
+#define GST_VDPAU_DECODER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_VDPAU_DECODER, GstVdpauDecoderClass))
-#define GST_VDPAU_DECODER_CLASS(klass) \
+#define GST_IS_VDPAU_DECODER(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VDPAU_DECODER))
-  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VDPAU_DECODER,GstVdpauDecoderClass))
+#define GST_IS_VDPAU_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VDPAU_DECODER))
-#define GST_IS_VDPAU_DECODER(obj) \
-  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VDPAU_DECODER))
-#define GST_IS_VDPAU_DECODER_CLASS(klass) \
-  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VDPAU_DECODER))
 
 typedef struct _GstVdpauDecoder      GstVdpauDecoder;
 typedef struct _GstVdpauDecoderClass GstVdpauDecoderClass;
@@ -62,6 +58,8 @@ struct _GstVdpauDecoder {
 
 struct _GstVdpauDecoderClass {
   GstBaseTransformClass parent_class;
+
+  gboolean (*set_caps) (GstVdpauDecoder *dec, GstCaps *caps);
 };
 
 GType gst_vdpaudecoder_get_type (void);

sys/vdpau/gstvdpaumpegdecoder.c

@@ -87,7 +87,8 @@ enum
 static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
     GST_PAD_SINK,
     GST_PAD_ALWAYS,
-    GST_STATIC_CAPS ("video/x-mpeg, mpegversion = (int) [ 1, 2 ]")
+    GST_STATIC_CAPS ("video/mpeg, mpegversion = (int) [ 1, 2 ], "
+        "systemstream = (boolean) false")
     );
 
 GST_BOILERPLATE (GstVdpauMpegDecoder, gst_vdpau_mpeg_decoder, GstVdpauDecoder,
@@ -98,6 +99,20 @@ static void gst_vdpau_mpeg_decoder_set_property (GObject * object,
 static void gst_vdpau_mpeg_decoder_get_property (GObject * object,
     guint prop_id, GValue * value, GParamSpec * pspec);
 
+static gboolean
+gst_vdpau_mpeg_decoder_set_caps (GstVdpauDecoder * dec, GstCaps * caps)
+{
+  GstVdpauMpegDecoder *mpeg_dec;
+  GstStructure *structure;
+
+  mpeg_dec = GST_VDPAU_MPEG_DECODER (dec);
+
+  structure = gst_caps_get_structure (caps, 0);
+  gst_structure_get_int (structure, "mpegversion", &mpeg_dec->version);
+
+  return TRUE;
+}
+
 /* GObject vmethod implementations */
 
 static void
@@ -121,9 +136,11 @@ gst_vdpau_mpeg_decoder_class_init (GstVdpauMpegDecoderClass * klass)
 {
   GObjectClass *gobject_class;
   GstElementClass *gstelement_class;
+  GstVdpauDecoderClass *vdpaudec_class;
 
   gobject_class = (GObjectClass *) klass;
   gstelement_class = (GstElementClass *) klass;
+  vdpaudec_class = (GstVdpauDecoderClass *) klass;
 
   gobject_class->set_property = gst_vdpau_mpeg_decoder_set_property;
   gobject_class->get_property = gst_vdpau_mpeg_decoder_get_property;
@@ -131,6 +148,8 @@ gst_vdpau_mpeg_decoder_class_init (GstVdpauMpegDecoderClass * klass)
   g_object_class_install_property (gobject_class, PROP_SILENT,
       g_param_spec_boolean ("silent", "Silent", "Produce verbose output ?",
           FALSE, G_PARAM_READWRITE));
+
+  vdpaudec_class->set_caps = gst_vdpau_mpeg_decoder_set_caps;
 }
 
 static void

sys/vdpau/gstvdpaumpegdecoder.h

@@ -53,16 +53,11 @@
 G_BEGIN_DECLS
 
 /* #defines don't like whitespacey bits */
-#define GST_TYPE_VDPAU_MPEG_DECODER \
+#define GST_TYPE_VDPAU_MPEG_DECODER            (gst_vdpau_mpeg_decoder_get_type())
-  (gst_vdpau_mpeg_decoder_get_type())
+#define GST_VDPAU_MPEG_DECODER(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VDPAU_MPEG_DECODER,GstVdpauMpegDecoder))
-#define GST_VDPAU_MPEG_DECODER(obj) \
+#define GST_VDPAU_MPEG_DECODER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VDPAU_MPEG_DECODER,GstVdpauMpegDecoderClass))
-  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VDPAU_MPEG_DECODER,GstVdpauMpegDecoder))
+#define GST_IS_VDPAU_MPEG_DECODER(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VDPAU_MPEG_DECODER))
-#define GST_VDPAU_MPEG_DECODER_CLASS(klass) \
+#define GST_IS_VDPAU_MPEG_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VDPAU_MPEG_DECODER))
-  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VDPAU_MPEG_DECODER,GstVdpauMpegDecoderClass))
-#define GST_IS_VDPAU_MPEG_DECODER(obj) \
-  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VDPAU_MPEG_DECODER))
-#define GST_IS_VDPAU_MPEG_DECODER_CLASS(klass) \
-  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VDPAU_MPEG_DECODER))
 
 typedef struct _GstVdpauMpegDecoder      GstVdpauMpegDecoder;
 typedef struct _GstVdpauMpegDecoderClass GstVdpauMpegDecoderClass;
@@ -71,9 +66,9 @@ struct _GstVdpauMpegDecoder
 {
   GstVdpauDecoder dec;
 
-  GstPad *sinkpad, *srcpad;
-
   gboolean silent;
+
+  gint version;
 };
 
 struct _GstVdpauMpegDecoderClass