libmpcodecs/vf.h

   1
   2 struct vf_instance_s;
   3 struct vf_priv_s;
   4
   5 typedef struct vf_info_s {
   6     const char *info;
   7     const char *name;
   8     const char *author;
   9     const char *comment;
  10     int (*open)(struct vf_instance_s* vf,char* args);
  11     // Ptr to a struct dscribing the options
  12     void* opts;
  13 } vf_info_t;
  14
  15 typedef struct vf_image_context_s {
  16     mp_image_t* static_images[2];
  17     mp_image_t* temp_images[1];
  18     mp_image_t* export_images[1];
  19     int static_idx;
  20 } vf_image_context_t;
  21
  22 typedef struct vf_instance_s {
  23     vf_info_t* info;
  24     // funcs:
  25     int (*config)(struct vf_instance_s* vf,
  26         int width, int height, int d_width, int d_height,
  27         unsigned int flags, unsigned int outfmt);
  28     int (*control)(struct vf_instance_s* vf,
  29         int request, void* data);
  30     int (*query_format)(struct vf_instance_s* vf,
  31         unsigned int fmt);
  32     void (*get_image)(struct vf_instance_s* vf,
  33         mp_image_t *mpi);
  34     int (*put_image)(struct vf_instance_s* vf,
  35         mp_image_t *mpi);
  36     void (*start_slice)(struct vf_instance_s* vf,
  37         mp_image_t *mpi);
  38     void (*draw_slice)(struct vf_instance_s* vf,
  39         unsigned char** src, int* stride, int w,int h, int x, int y);
  40     void (*uninit)(struct vf_instance_s* vf);
  41     // caps:
  42     unsigned int default_caps; // used by default query_format()
  43     unsigned int default_reqs; // used by default config()
  44     // data:
  45     vf_image_context_t imgctx;
  46     struct vf_instance_s* next;
  47     mp_image_t *dmpi;
  48     struct vf_priv_s* priv;
  49 } vf_instance_t;
  50
  51 // control codes:
  52 #include "mpc_info.h"
  53
  54 typedef struct vf_seteq_s
  55 {
  56     char *item;
  57     int value;
  58 } vf_equalizer_t;
  59
  60 #define VFCTRL_QUERY_MAX_PP_LEVEL 4 /* test for postprocessing support (max level) */
  61 #define VFCTRL_SET_PP_LEVEL 5 /* set postprocessing level */
  62 #define VFCTRL_SET_EQUALIZER 6 /* set color options (brightness,contrast etc) */
  63 #define VFCTRL_GET_EQUALIZER 8 /* gset color options (brightness,contrast etc) */
  64 #define VFCTRL_DRAW_OSD 7
  65 #define VFCTRL_CHANGE_RECTANGLE 9 /* Change the rectangle boundaries */
  66 #define VFCTRL_FLIP_PAGE 10 /* Tell the vo to flip pages */
  67 #define VFCTRL_DUPLICATE_FRAME 11 /* For encoding - encode zero-change frame */
  68 #define VFCTRL_SKIP_NEXT_FRAME 12 /* For encoding - drop the next frame that passes thru */
  69
  70 #include "vfcap.h"
  71
  72 // functions:
  73 void vf_mpi_clear(mp_image_t* mpi,int x0,int y0,int w,int h);
  74 mp_image_t* vf_get_image(vf_instance_t* vf, unsigned int outfmt, int mp_imgtype, int mp_imgflag, int w, int h);
  75
  76 vf_instance_t* vf_open_plugin(vf_info_t** filter_list, vf_instance_t* next, char *name, char **args);
  77 vf_instance_t* vf_open_filter(vf_instance_t* next, char *name, char **args);
  78 vf_instance_t* vf_open_encoder(vf_instance_t* next, char *name, char *args);
  79
  80 unsigned int vf_match_csp(vf_instance_t** vfp,unsigned int* list,unsigned int preferred);
  81 void vf_clone_mpi_attributes(mp_image_t* dst, mp_image_t* src);
  82
  83 // default wrappers:
  84 int vf_next_config(struct vf_instance_s* vf,
  85         int width, int height, int d_width, int d_height,
  86         unsigned int flags, unsigned int outfmt);
  87 int vf_next_control(struct vf_instance_s* vf, int request, void* data);
  88 int vf_next_query_format(struct vf_instance_s* vf, unsigned int fmt);
  89 int vf_next_put_image(struct vf_instance_s* vf,mp_image_t *mpi);
  90 void vf_next_draw_slice (struct vf_instance_s* vf, unsigned char** src, int* stride, int w,int h, int x, int y);
  91
  92 vf_instance_t* append_filters(vf_instance_t* last);
  93
  94 void vf_list_plugins();
  95
  96 void vf_uninit_filter(vf_instance_t* vf);
  97 void vf_uninit_filter_chain(vf_instance_t* vf);
  98