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, 57 insertions, 0 deletions

diff --git a/libmpcodecs/vf.h b/libmpcodecs/vf.h
new file mode 100644
index 0000000000..1cba9f9323
--- /dev/null
+++ b/libmpcodecs/vf.h
@@ -0,0 +1,57 @@
+
+struct vf_instance_s;
+struct vf_priv_s;
+
+typedef struct vf_info_s {
+    const char *info;
+    const char *name;
+    const char *author;
+    const char *comment;
+    int (*open)(struct vf_instance_s* vf,char* args);
+} vf_info_t;
+
+typedef struct vf_image_context_s {
+    mp_image_t* static_images[2];
+    mp_image_t* temp_images[1];
+    mp_image_t* export_images[1];
+    int static_idx;
+} vf_image_context_t;
+
+typedef struct vf_instance_s {
+    vf_info_t* info;
+    // funcs:
+    int (*config)(struct vf_instance_s* vf,
+        int width, int height, int d_width, int d_height,
+	unsigned int flags, unsigned int outfmt);
+    int (*control)(struct vf_instance_s* vf,
+        int request, void* data);
+    int (*query_format)(struct vf_instance_s* vf,
+        unsigned int fmt);
+    void (*get_image)(struct vf_instance_s* vf,
+        mp_image_t *mpi);
+    void (*put_image)(struct vf_instance_s* vf,
+        mp_image_t *mpi);
+    void (*draw_slice)(struct vf_instance_s* vf,
+        unsigned char* src, int* stride, int w,int h, int x, int y);
+    void (*uninit)(struct vf_instance_s* vf);
+    // data:
+    vf_image_context_t imgctx;
+    struct vf_instance_s* next;
+    struct vf_priv_s* priv;
+} vf_instance_t;
+
+// functions:
+mp_image_t* vf_get_image(vf_instance_t* vf, unsigned int outfmt, int mp_imgtype, int mp_imgflag, int w, int h);
+vf_instance_t* vf_open_filter(vf_instance_t* next, char *name, char *args);
+
+// default wrappers:
+int vf_next_config(struct vf_instance_s* vf,
+        int width, int height, int d_width, int d_height,
+	unsigned int flags, unsigned int outfmt);
+int vf_next_control(struct vf_instance_s* vf, int request, void* data);
+int vf_next_query_format(struct vf_instance_s* vf, unsigned int fmt);
+void vf_next_put_image(struct vf_instance_s* vf,mp_image_t *mpi);
+void vf_next_uninit(struct vf_instance_s* vf);
+vf_instance_t* append_filters(vf_instance_t* last);
+
+