dvbscale - setup scaling for the DVB card

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6003 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 48 insertions, 0 deletions

diff --git a/libmpcodecs/vf_dvbscale.c b/libmpcodecs/vf_dvbscale.c
new file mode 100644
index 0000000000..987482e12b
--- /dev/null
+++ b/libmpcodecs/vf_dvbscale.c
@@ -0,0 +1,48 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+
+#include "../config.h"
+#include "../mp_msg.h"
+
+#include "img_format.h"
+#include "mp_image.h"
+#include "vf.h"
+
+struct vf_priv_s {
+    int aspect;
+};
+
+//===========================================================================//
+
+static int config(struct vf_instance_s* vf,
+        int width, int height, int d_width, int d_height,
+	unsigned int flags, unsigned int outfmt){
+
+    int scaled_y=vf->priv->aspect*d_height/d_width;
+    
+    d_width=width; // do X-scaling by hardware
+    d_height=scaled_y;
+
+    return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
+}
+
+static int open(vf_instance_t *vf, char* args){
+    vf->config=config;
+    vf->default_caps=0;
+    vf->priv=malloc(sizeof(struct vf_priv_s));
+    vf->priv->aspect=768;
+    if(args) vf->priv->aspect=atoi(args);
+    return 1;
+}
+
+vf_info_t vf_info_dvbscale = {
+    "calc Y scaling for DVB card",
+    "dvbscale",
+    "A'rpi",
+    "",
+    open
+};
+
+//===========================================================================//