video filter layer - written from scratch, but inspired a lot by Fredrik Kuivinen's patch

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@5508 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 88 insertions, 0 deletions

diff --git a/libmpcodecs/vf_vo.c b/libmpcodecs/vf_vo.c
new file mode 100644
index 0000000000..3f8afe52f0
--- /dev/null
+++ b/libmpcodecs/vf_vo.c
@@ -0,0 +1,88 @@
+#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"
+
+//===========================================================================//
+
+#define video_out ((vo_functions_t*)(vf->priv))
+
+static int config(struct vf_instance_s* vf,
+        int width, int height, int d_width, int d_height,
+	unsigned int flags, unsigned int outfmt){
+    if(video_out->config(width,height,d_width,d_height,flags,"MPlayer",outfmt,NULL))
+	return 0;
+    return 1;
+}
+
+static int control(struct vf_instance_s* vf,
+        int request, void* data){
+    // return video_out->control(request,data);
+    return -3;
+}
+
+static int query_format(struct vf_instance_s* vf, unsigned int fmt){
+    return video_out->control(VOCTRL_QUERY_FORMAT,&fmt);
+}
+
+static void get_image(struct vf_instance_s* vf,
+        mp_image_t *mpi){
+    if(vo_directrendering) 
+	video_out->control(VOCTRL_GET_IMAGE,mpi);
+}
+
+static void put_image(struct vf_instance_s* vf,
+        mp_image_t *mpi){
+  // first check, maybe the vo/vf plugin implements draw_image using mpi:
+  if(video_out->control(VOCTRL_DRAW_IMAGE,mpi)==VO_TRUE) return; // done.
+  // nope, fallback to old draw_frame/draw_slice:
+  if(!(mpi->flags&(MP_IMGFLAG_DIRECT|MP_IMGFLAG_DRAW_CALLBACK))){
+    // blit frame:
+    if(mpi->flags&MP_IMGFLAG_PLANAR)
+        video_out->draw_slice(mpi->planes,mpi->stride,mpi->w,mpi->h,mpi->x,mpi->y);
+    else
+        video_out->draw_frame(mpi->planes);
+  }
+}
+
+static void draw_slice(struct vf_instance_s* vf,
+        unsigned char* src, int* stride, int w,int h, int x, int y){
+    video_out->draw_slice(src,stride,w,h,x,y);
+}
+
+static void uninit(struct vf_instance_s* vf){
+//    video_out->uninit();
+}
+
+//===========================================================================//
+
+static int open(vf_instance_t *vf, char* args){
+    vf->config=config;
+    vf->control=control;
+    vf->query_format=query_format;
+    vf->get_image=get_image;
+    vf->put_image=put_image;
+    vf->draw_slice=draw_slice;
+    vf->uninit=uninit;
+    vf->priv=(void*)args; // video_out
+    if(!video_out) return 0; // no vo ?
+//    if(video_out->preinit(args)) return 0; // preinit failed
+    return 1;
+}
+
+vf_info_t vf_info_vo = {
+    "libvo wrapper",
+    "vo",
+    "A'rpi",
+    "for internal use",
+    open
+};
+
+//===========================================================================//