add video cube

Uses gstreamer for a simple decoder.  If decoder can give us dma-buf's
directly, we'll directly use that as a texture (zero copy), otherwise
memcpy into a buffer from gbm.  This should work with both hw and sw
decoders.

Probably room for improvement.  And the interface between gl and the
decoder is pretty simple so I suppose other decoders would be possible.
(But hopefully they could already be supported via gstreamer.)

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/common.h b/common.h
index df07b61..2eceac7 100644
--- a/common.h
+++ b/common.h
@@ -85,9 +85,29 @@ enum mode {
 	RGBA,          /* single-plane RGBA */
 	NV12_2IMG,     /* NV12, handled as two textures and converted to RGB in shader */
 	NV12_1IMG,     /* NV12, imported as planar YUV eglimg */
+	VIDEO,         /* video textured cube */
 };
 
 const struct egl * init_cube_smooth(const struct gbm *gbm);
 const struct egl * init_cube_tex(const struct gbm *gbm, enum mode mode);
 
+#ifdef HAVE_GST
+
+struct decoder;
+struct decoder * video_init(const struct egl *egl, const struct gbm *gbm, const char *filename);
+EGLImage video_frame(struct decoder *dec);
+void video_deinit(struct decoder *dec);
+
+const struct egl * init_cube_video(const struct gbm *gbm, const char *video);
+
+#else
+static inline const struct egl *
+init_cube_video(const struct gbm *gbm, const char *video)
+{
+	(void)gbm; (void)video;
+	printf("no GStreamer support!\n");
+	return NULL;
+}
+#endif
+
 #endif /* _COMMON_H */