--- /dev/null
+#include <assert.h>
+
+#include "vl_decoder.h"
+#include "vl_mpeg12_bitstream.h"
+#include "vl_mpeg12_decoder.h"
+#include "vl_video_buffer.h"
+#include "vl_zscan.h"
+
+
+/*
+ * vl_decoder stubs
+ */
+bool
+vl_profile_supported(struct pipe_screen *screen,
+ enum pipe_video_profile profile,
+ enum pipe_video_entrypoint entrypoint)
+{
+ assert(0);
+ return false;
+}
+
+int
+vl_level_supported(struct pipe_screen *screen,
+ enum pipe_video_profile profile)
+{
+ assert(0);
+ return 0;
+}
+
+struct pipe_video_codec *
+vl_create_decoder(struct pipe_context *pipe,
+ const struct pipe_video_codec *templat)
+{
+ assert(0);
+ return NULL;
+}
+
+
+/*
+ * vl_video_buffer stubs
+ */
+const enum pipe_format *
+vl_video_buffer_formats(struct pipe_screen *screen, enum pipe_format format)
+{
+ assert(0);
+ return NULL;
+}
+
+boolean
+vl_video_buffer_is_format_supported(struct pipe_screen *screen,
+ enum pipe_format format,
+ enum pipe_video_profile profile,
+ enum pipe_video_entrypoint entrypoint)
+{
+ assert(0);
+ return false;
+}
+
+unsigned
+vl_video_buffer_max_size(struct pipe_screen *screen)
+{
+ assert(0);
+ return 0;
+}
+
+void
+vl_video_buffer_set_associated_data(struct pipe_video_buffer *vbuf,
+ struct pipe_video_codec *vcodec,
+ void *associated_data,
+ void (*destroy_associated_data)(void *))
+{
+ assert(0);
+}
+
+void *
+vl_video_buffer_get_associated_data(struct pipe_video_buffer *vbuf,
+ struct pipe_video_codec *vcodec)
+{
+ assert(0);
+ return NULL;
+}
+
+void
+vl_video_buffer_template(struct pipe_resource *templ,
+ const struct pipe_video_buffer *tmpl,
+ enum pipe_format resource_format,
+ unsigned depth, unsigned array_size,
+ unsigned usage, unsigned plane)
+{
+ assert(0);
+}
+
+struct pipe_video_buffer *
+vl_video_buffer_create(struct pipe_context *pipe,
+ const struct pipe_video_buffer *tmpl)
+{
+ assert(0);
+ return NULL;
+}
+
+struct pipe_video_buffer *
+vl_video_buffer_create_ex2(struct pipe_context *pipe,
+ const struct pipe_video_buffer *tmpl,
+ struct pipe_resource *resources[VL_NUM_COMPONENTS])
+{
+ assert(0);
+ return NULL;
+}
+
+
+/*
+ * vl_mpeg12_bitstream stubs
+ */
+void
+vl_mpg12_bs_init(struct vl_mpg12_bs *bs, struct pipe_video_codec *decoder)
+{
+ assert(0);
+}
+
+void
+vl_mpg12_bs_decode(struct vl_mpg12_bs *bs,
+ struct pipe_video_buffer *target,
+ struct pipe_mpeg12_picture_desc *picture,
+ unsigned num_buffers,
+ const void * const *buffers,
+ const unsigned *sizes)
+{
+ assert(0);
+}
+
+
+/*
+ * vl_mpeg12_decoder stubs
+ */
+struct pipe_video_codec *
+vl_create_mpeg12_decoder(struct pipe_context *pipe,
+ const struct pipe_video_codec *templat)
+{
+ assert(0);
+ return NULL;
+}
+
+/*
+ * vl_zscan
+ */
+const int vl_zscan_normal[] = {0};
+const int vl_zscan_alternate[] = {0};