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
  47     int (*continue_buffered_image)(struct vf_instance_s* vf);
  48     // caps:
  49     unsigned int default_caps; // used by default query_format()
  50     unsigned int default_reqs; // used by default config()
  51     // data:
  52     int w, h;
  53     vf_image_context_t imgctx;
  54     vf_format_context_t fmt;
  55     struct vf_instance_s* next;
  56     mp_image_t *dmpi;
  57     struct vf_priv_s* priv;
  58 } vf_instance_t;
  59
  60 // control codes:
  61 #include "mpc_info.h"
  62
  63 typedef struct vf_seteq_s
  64 {
  65     char *item;
  66     int value;
  67 } vf_equalizer_t;
  68
  69 #define VFCTRL_QUERY_MAX_PP_LEVEL 4 /* test for postprocessing support (max level) */
  70 #define VFCTRL_SET_PP_LEVEL 5 /* set postprocessing level */
  71 #define VFCTRL_SET_EQUALIZER 6 /* set color options (brightness,contrast etc) */
  72 #define VFCTRL_GET_EQUALIZER 8 /* gset color options (brightness,contrast etc) */
  73 #define VFCTRL_DRAW_OSD 7
  74 #define VFCTRL_CHANGE_RECTANGLE 9 /* Change the rectangle boundaries */
  75 #define VFCTRL_FLIP_PAGE 10 /* Tell the vo to flip pages */
  76 #define VFCTRL_DUPLICATE_FRAME 11 /* For encoding - encode zero-change frame */
  77 #define VFCTRL_SKIP_NEXT_FRAME 12 /* For encoding - drop the next frame that passes thru */
  78 #define VFCTRL_FLUSH_FRAMES    13 /* For encoding - flush delayed frames */
  79 #define VFCTRL_SCREENSHOT      14 /* Make a screenshot */
  80 #define VFCTRL_INIT_EOSD       15 /* Select EOSD renderer */
  81 #define VFCTRL_DRAW_EOSD       16 /* Render EOSD */
  82 #define VFCTRL_GET_PTS         17 /* Return last pts value that reached vf_vo*/
  83 #define VFCTRL_SET_DEINTERLACE 18 /* Set deinterlacing status */
  84 #define VFCTRL_GET_DEINTERLACE 19 /* Get deinterlacing status */
  85
  86 #include "vfcap.h"
  87
  88 //FIXME this should be in a common header, but i dunno which
  89 #define MP_NOPTS_VALUE (-1LL<<63) //both int64_t and double should be able to represent this exactly
  90
  91
  92 // functions:
  93 void vf_mpi_clear(mp_image_t* mpi,int x0,int y0,int w,int h);
  94 mp_image_t* vf_get_image(vf_instance_t* vf, unsigned int outfmt, int mp_imgtype, int mp_imgflag, int w, int h);
  95
  96 vf_instance_t* vf_open_plugin(vf_info_t** filter_list, vf_instance_t* next, const char *name, char **args);
  97 vf_instance_t* vf_open_filter(vf_instance_t* next, const char *name, char **args);
  98 vf_instance_t* vf_add_before_vo(vf_instance_t **vf, char *name, char **args);
  99 vf_instance_t* vf_open_encoder(vf_instance_t* next, const char *name, char *args);
 100
 101 unsigned int vf_match_csp(vf_instance_t** vfp,unsigned int* list,unsigned int preferred);
 102 void vf_clone_mpi_attributes(mp_image_t* dst, mp_image_t* src);
 103 void vf_queue_frame(vf_instance_t *vf, int (*)(vf_instance_t *));
 104 int vf_output_queued_frame(vf_instance_t *vf);
 105
 106 // default wrappers:
 107 int vf_next_config(struct vf_instance_s* vf,
 108         int width, int height, int d_width, int d_height,
 109         unsigned int flags, unsigned int outfmt);
 110 int vf_next_control(struct vf_instance_s* vf, int request, void* data);
 111 int vf_next_query_format(struct vf_instance_s* vf, unsigned int fmt);
 112 int vf_next_put_image(struct vf_instance_s* vf,mp_image_t *mpi, double pts);
 113 void vf_next_draw_slice (struct vf_instance_s* vf, unsigned char** src, int* stride, int w,int h, int x, int y);
 114
 115 vf_instance_t* append_filters(vf_instance_t* last);
 116
 117 void vf_uninit_filter(vf_instance_t* vf);
 118 void vf_uninit_filter_chain(vf_instance_t* vf);
 119
 120 int vf_config_wrapper(struct vf_instance_s* vf,
 121                       int width, int height, int d_width, int d_height,
 122                       unsigned int flags, unsigned int outfmt);