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_format_context_t {
  23     int have_configured;
  24     int orig_width, orig_height, orig_fmt;
  25 } vf_format_context_t;
  26
  27 typedef struct vf_instance_s {
  28     vf_info_t* info;
  29     // funcs:
  30     int (*config)(struct vf_instance_s* vf,
  31         int width, int height, int d_width, int d_height,
  32         unsigned int flags, unsigned int outfmt);
  33     int (*control)(struct vf_instance_s* vf,
  34         int request, void* data);
  35     int (*query_format)(struct vf_instance_s* vf,
  36         unsigned int fmt);
  37     void (*get_image)(struct vf_instance_s* vf,
  38         mp_image_t *mpi);
  39     int (*put_image)(struct vf_instance_s* vf,
  40         mp_image_t *mpi, double pts);
  41     void (*start_slice)(struct vf_instance_s* vf,
  42         mp_image_t *mpi);
  43     void (*draw_slice)(struct vf_instance_s* vf,
  44         unsigned char** src, int* stride, int w,int h, int x, int y);
  45     void (*uninit)(struct vf_instance_s* vf);
  46     // caps:
  47     unsigned int default_caps; // used by default query_format()
  48     unsigned int default_reqs; // used by default config()
  49     // data:
  50     int w, h;
  51     vf_image_context_t imgctx;
  52     vf_format_context_t fmt;
  53     struct vf_instance_s* next;
  54     mp_image_t *dmpi;
  55     struct vf_priv_s* priv;
  56 } vf_instance_t;
  57
  58 // control codes:
  59 #include "mpc_info.h"
  60
  61 typedef struct vf_seteq_s
  62 {
  63     char *item;
  64     int value;
  65 } vf_equalizer_t;
  66
  67 #define VFCTRL_QUERY_MAX_PP_LEVEL 4 /* test for postprocessing support (max level) */
  68 #define VFCTRL_SET_PP_LEVEL 5 /* set postprocessing level */
  69 #define VFCTRL_SET_EQUALIZER 6 /* set color options (brightness,contrast etc) */
  70 #define VFCTRL_GET_EQUALIZER 8 /* gset color options (brightness,contrast etc) */
  71 #define VFCTRL_DRAW_OSD 7
  72 #define VFCTRL_CHANGE_RECTANGLE 9 /* Change the rectangle boundaries */
  73 #define VFCTRL_FLIP_PAGE 10 /* Tell the vo to flip pages */
  74 #define VFCTRL_DUPLICATE_FRAME 11 /* For encoding - encode zero-change frame */
  75 #define VFCTRL_SKIP_NEXT_FRAME 12 /* For encoding - drop the next frame that passes thru */
  76 #define VFCTRL_FLUSH_FRAMES    13 /* For encoding - flush delayed frames */
  77 #define VFCTRL_SCREENSHOT      14 /* Make a screenshot */
  78
  79 #include "vfcap.h"
  80
  81 //FIXME this should be in a common header, but i dunno which
  82 #define MP_NOPTS_VALUE (-1LL<<63) //both int64_t and double should be able to represent this exactly
  83
  84
  85 // functions:
  86 void vf_mpi_clear(mp_image_t* mpi,int x0,int y0,int w,int h);
  87 mp_image_t* vf_get_image(vf_instance_t* vf, unsigned int outfmt, int mp_imgtype, int mp_imgflag, int w, int h);
  88
  89 vf_instance_t* vf_open_plugin(vf_info_t** filter_list, vf_instance_t* next, char *name, char **args);
  90 vf_instance_t* vf_open_filter(vf_instance_t* next, char *name, char **args);
  91 vf_instance_t* vf_add_before_vo(vf_instance_t **vf, char *name, char **args);
  92 vf_instance_t* vf_open_encoder(vf_instance_t* next, char *name, char *args);
  93
  94 unsigned int vf_match_csp(vf_instance_t** vfp,unsigned int* list,unsigned int preferred);
  95 void vf_clone_mpi_attributes(mp_image_t* dst, mp_image_t* src);
  96
  97 // default wrappers:
  98 int vf_next_config(struct vf_instance_s* vf,
  99         int width, int height, int d_width, int d_height,
 100         unsigned int flags, unsigned int outfmt);
 101 int vf_next_control(struct vf_instance_s* vf, int request, void* data);
 102 int vf_next_query_format(struct vf_instance_s* vf, unsigned int fmt);
 103 int vf_next_put_image(struct vf_instance_s* vf,mp_image_t *mpi, double pts);
 104 void vf_next_draw_slice (struct vf_instance_s* vf, unsigned char** src, int* stride, int w,int h, int x, int y);
 105
 106 vf_instance_t* append_filters(vf_instance_t* last);
 107
 108 void vf_list_plugins(void);
 109
 110 void vf_uninit_filter(vf_instance_t* vf);
 111 void vf_uninit_filter_chain(vf_instance_t* vf);
 112
 113 int vf_config_wrapper(struct vf_instance_s* vf,
 114                       int width, int height, int d_width, int d_height,
 115                       unsigned int flags, unsigned int outfmt);