ffmpeg/libavfilter/libmpcodecs/vf.h

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #ifndef MPLAYER_VF_H
  20 #define MPLAYER_VF_H
  21
  22 //#include "m_option.h"
  23 #include "mp_image.h"
  24
  25 //extern m_obj_settings_t* vf_settings;
  26 //extern const m_obj_list_t vf_obj_list;
  27
  28 struct vf_instance;
  29 struct vf_priv_s;
  30
  31 typedef struct vf_info_s {
  32     const char *info;
  33     const char *name;
  34     const char *author;
  35     const char *comment;
  36     int (*vf_open)(struct vf_instance *vf,char* args);
  37     // Ptr to a struct dscribing the options
  38     const void* opts;
  39 } vf_info_t;
  40
  41 #define NUM_NUMBERED_MPI 50
  42
  43 typedef struct vf_image_context_s {
  44     mp_image_t* static_images[2];
  45     mp_image_t* temp_images[1];
  46     mp_image_t* export_images[1];
  47     mp_image_t* numbered_images[NUM_NUMBERED_MPI];
  48     int static_idx;
  49 } vf_image_context_t;
  50
  51 typedef struct vf_format_context_t {
  52     int have_configured;
  53     int orig_width, orig_height, orig_fmt;
  54 } vf_format_context_t;
  55
  56 typedef struct vf_instance {
  57     const vf_info_t* info;
  58     // funcs:
  59     int (*config)(struct vf_instance *vf,
  60         int width, int height, int d_width, int d_height,
  61         unsigned int flags, unsigned int outfmt);
  62     int (*control)(struct vf_instance *vf,
  63         int request, void* data);
  64     int (*query_format)(struct vf_instance *vf,
  65         unsigned int fmt);
  66     void (*get_image)(struct vf_instance *vf,
  67         mp_image_t *mpi);
  68     int (*put_image)(struct vf_instance *vf,
  69         mp_image_t *mpi, double pts);
  70     void (*start_slice)(struct vf_instance *vf,
  71         mp_image_t *mpi);
  72     void (*draw_slice)(struct vf_instance *vf,
  73         unsigned char** src, int* stride, int w,int h, int x, int y);
  74     void (*uninit)(struct vf_instance *vf);
  75
  76     int (*continue_buffered_image)(struct vf_instance *vf);
  77     // caps:
  78     unsigned int default_caps; // used by default query_format()
  79     unsigned int default_reqs; // used by default config()
  80     // data:
  81     int w, h;
  82     vf_image_context_t imgctx;
  83     vf_format_context_t fmt;
  84     struct vf_instance *next;
  85     mp_image_t *dmpi;
  86     struct vf_priv_s* priv;
  87 } vf_instance_t;
  88
  89 // control codes:
  90 #include "mpc_info.h"
  91
  92 typedef struct vf_seteq_s
  93 {
  94     const char *item;
  95     int value;
  96 } vf_equalizer_t;
  97
  98 #define VFCTRL_QUERY_MAX_PP_LEVEL 4 /* test for postprocessing support (max level) */
  99 #define VFCTRL_SET_PP_LEVEL 5 /* set postprocessing level */
 100 #define VFCTRL_SET_EQUALIZER 6 /* set color options (brightness,contrast etc) */
 101 #define VFCTRL_GET_EQUALIZER 8 /* gset color options (brightness,contrast etc) */
 102 #define VFCTRL_DRAW_OSD 7
 103 #define VFCTRL_CHANGE_RECTANGLE 9 /* Change the rectangle boundaries */
 104 #define VFCTRL_FLIP_PAGE 10 /* Tell the vo to flip pages */
 105 #define VFCTRL_DUPLICATE_FRAME 11 /* For encoding - encode zero-change frame */
 106 #define VFCTRL_SKIP_NEXT_FRAME 12 /* For encoding - drop the next frame that passes through */
 107 #define VFCTRL_FLUSH_FRAMES    13 /* For encoding - flush delayed frames */
 108 #define VFCTRL_SCREENSHOT      14 /* Make a screenshot */
 109 #define VFCTRL_INIT_EOSD       15 /* Select EOSD renderer */
 110 #define VFCTRL_DRAW_EOSD       16 /* Render EOSD */
 111 #define VFCTRL_GET_PTS         17 /* Return last pts value that reached vf_vo*/
 112 #define VFCTRL_SET_DEINTERLACE 18 /* Set deinterlacing status */
 113 #define VFCTRL_GET_DEINTERLACE 19 /* Get deinterlacing status */
 114
 115 #include "vfcap.h"
 116
 117 //FIXME this should be in a common header, but i dunno which
 118 #define MP_NOPTS_VALUE (-1LL<<63) //both int64_t and double should be able to represent this exactly
 119
 120
 121 // functions:
 122 void ff_vf_mpi_clear(mp_image_t* mpi,int x0,int y0,int w,int h);
 123 mp_image_t* ff_vf_get_image(vf_instance_t* vf, unsigned int outfmt, int mp_imgtype, int mp_imgflag, int w, int h);
 124
 125 vf_instance_t* vf_open_plugin(const vf_info_t* const* filter_list, vf_instance_t* next, const char *name, char **args);
 126 vf_instance_t* vf_open_filter(vf_instance_t* next, const char *name, char **args);
 127 vf_instance_t* ff_vf_add_before_vo(vf_instance_t **vf, char *name, char **args);
 128 vf_instance_t* vf_open_encoder(vf_instance_t* next, const char *name, char *args);
 129
 130 unsigned int ff_vf_match_csp(vf_instance_t** vfp,const unsigned int* list,unsigned int preferred);
 131 void ff_vf_clone_mpi_attributes(mp_image_t* dst, mp_image_t* src);
 132 void ff_vf_queue_frame(vf_instance_t *vf, int (*)(vf_instance_t *));
 133 int ff_vf_output_queued_frame(vf_instance_t *vf);
 134
 135 // default wrappers:
 136 int ff_vf_next_config(struct vf_instance *vf,
 137         int width, int height, int d_width, int d_height,
 138         unsigned int flags, unsigned int outfmt);
 139 int ff_vf_next_control(struct vf_instance *vf, int request, void* data);
 140 void ff_vf_extra_flip(struct vf_instance *vf);
 141 int ff_vf_next_query_format(struct vf_instance *vf, unsigned int fmt);
 142 int ff_vf_next_put_image(struct vf_instance *vf,mp_image_t *mpi, double pts);
 143 void ff_vf_next_draw_slice (struct vf_instance *vf, unsigned char** src, int* stride, int w,int h, int x, int y);
 144
 145 vf_instance_t* ff_append_filters(vf_instance_t* last);
 146
 147 void ff_vf_uninit_filter(vf_instance_t* vf);
 148 void ff_vf_uninit_filter_chain(vf_instance_t* vf);
 149
 150 int ff_vf_config_wrapper(struct vf_instance *vf,
 151                       int width, int height, int d_width, int d_height,
 152                       unsigned int flags, unsigned int outfmt);
 153
 154 static inline int norm_qscale(int qscale, int type)
 155 {
 156     switch (type) {
 157     case 0: // MPEG-1
 158         return qscale;
 159     case 1: // MPEG-2
 160         return qscale >> 1;
 161     case 2: // H264
 162         return qscale >> 2;
 163     case 3: // VP56
 164         return (63 - qscale + 2) >> 2;
 165     }
 166     return qscale;
 167 }
 168
 169 #endif /* MPLAYER_VF_H */