1 files changed, 110 insertions, 0 deletions
diff --git a/video/filter/vf_flip.c b/video/filter/vf_flip.c
new file mode 100644
index 0000000000..e8660ceb51
--- /dev/null
+++ b/video/filter/vf_flip.c
@@ -0,0 +1,110 @@
+/*
+ * This file is part of MPlayer.
+ *
+ * MPlayer 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.
+ *
+ * MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "config.h"
+#include "mp_msg.h"
+
+#include "mp_image.h"
+#include "vf.h"
+
+#include "libvo/video_out.h"
+
+//===========================================================================//
+
+static int config(struct vf_instance *vf,
+        int width, int height, int d_width, int d_height,
+	unsigned int flags, unsigned int outfmt){
+    flags&=~VOFLAG_FLIPPING; // remove the FLIP flag
+    return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
+}
+
+static void get_image(struct vf_instance *vf, mp_image_t *mpi){
+    if(mpi->flags&MP_IMGFLAG_ACCEPT_STRIDE){
+	// try full DR !
+	vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
+	    mpi->type, mpi->flags, mpi->width, mpi->height);
+	// set up mpi as a upside-down image of dmpi:
+	mpi->planes[0]=vf->dmpi->planes[0]+
+		    vf->dmpi->stride[0]*(vf->dmpi->height-1);
+	mpi->stride[0]=-vf->dmpi->stride[0];
+	if(mpi->flags&MP_IMGFLAG_PLANAR){
+	    mpi->planes[1]=vf->dmpi->planes[1]+
+		    vf->dmpi->stride[1]*((vf->dmpi->height>>mpi->chroma_y_shift)-1);
+	    mpi->stride[1]=-vf->dmpi->stride[1];
+	    mpi->planes[2]=vf->dmpi->planes[2]+
+		    vf->dmpi->stride[2]*((vf->dmpi->height>>mpi->chroma_y_shift)-1);
+	    mpi->stride[2]=-vf->dmpi->stride[2];
+	}
+	mpi->flags|=MP_IMGFLAG_DIRECT;
+	mpi->priv=(void*)vf->dmpi;
+    }
+}
+
+static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
+    if(mpi->flags&MP_IMGFLAG_DIRECT){
+	// we've used DR, so we're ready...
+	if(!(mpi->flags&MP_IMGFLAG_PLANAR))
+	    ((mp_image_t*)mpi->priv)->planes[1] = mpi->planes[1]; // passthrough rgb8 palette
+	return vf_next_put_image(vf,(mp_image_t*)mpi->priv, pts);
+    }
+
+    vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
+	MP_IMGTYPE_EXPORT, MP_IMGFLAG_ACCEPT_STRIDE,
+	mpi->width, mpi->height);
+
+    // set up mpi as a upside-down image of dmpi:
+    vf->dmpi->planes[0]=mpi->planes[0]+
+		    mpi->stride[0]*(mpi->height-1);
+    vf->dmpi->stride[0]=-mpi->stride[0];
+    if(vf->dmpi->flags&MP_IMGFLAG_PLANAR){
+        vf->dmpi->planes[1]=mpi->planes[1]+
+	    mpi->stride[1]*((mpi->height>>mpi->chroma_y_shift)-1);
+	vf->dmpi->stride[1]=-mpi->stride[1];
+	vf->dmpi->planes[2]=mpi->planes[2]+
+	    mpi->stride[2]*((mpi->height>>mpi->chroma_y_shift)-1);
+	vf->dmpi->stride[2]=-mpi->stride[2];
+    } else
+	vf->dmpi->planes[1]=mpi->planes[1]; // passthru bgr8 palette!!!
+
+    return vf_next_put_image(vf,vf->dmpi, pts);
+}
+
+//===========================================================================//
+
+static int vf_open(vf_instance_t *vf, char *args){
+    vf->config=config;
+    vf->get_image=get_image;
+    vf->put_image=put_image;
+    vf->default_reqs=VFCAP_ACCEPT_STRIDE;
+    return 1;
+}
+
+const vf_info_t vf_info_flip = {
+    "flip image upside-down",
+    "flip",
+    "A'rpi",
+    "",
+    vf_open,
+    NULL
+};
+
+//===========================================================================//