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libavfilter/libmpcodecs/vf.h

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00001 /*
00002  * This file is part of MPlayer.
00003  *
00004  * MPlayer is free software; you can redistribute it and/or modify
00005  * it under the terms of the GNU General Public License as published by
00006  * the Free Software Foundation; either version 2 of the License, or
00007  * (at your option) any later version.
00008  *
00009  * MPlayer is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  * GNU General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU General Public License along
00015  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
00016  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
00017  */
00018 
00019 #ifndef MPLAYER_VF_H
00020 #define MPLAYER_VF_H
00021 
00022 //#include "m_option.h"
00023 #include "mp_image.h"
00024 
00025 //extern m_obj_settings_t* vf_settings;
00026 //extern const m_obj_list_t vf_obj_list;
00027 
00028 struct vf_instance;
00029 struct vf_priv_s;
00030 
00031 typedef struct vf_info_s {
00032     const char *info;
00033     const char *name;
00034     const char *author;
00035     const char *comment;
00036     int (*vf_open)(struct vf_instance *vf,char* args);
00037     // Ptr to a struct dscribing the options
00038     const void* opts;
00039 } vf_info_t;
00040 
00041 #define NUM_NUMBERED_MPI 50
00042 
00043 typedef struct vf_image_context_s {
00044     mp_image_t* static_images[2];
00045     mp_image_t* temp_images[1];
00046     mp_image_t* export_images[1];
00047     mp_image_t* numbered_images[NUM_NUMBERED_MPI];
00048     int static_idx;
00049 } vf_image_context_t;
00050 
00051 typedef struct vf_format_context_t {
00052     int have_configured;
00053     int orig_width, orig_height, orig_fmt;
00054 } vf_format_context_t;
00055 
00056 typedef struct vf_instance {
00057     const vf_info_t* info;
00058     // funcs:
00059     int (*config)(struct vf_instance *vf,
00060         int width, int height, int d_width, int d_height,
00061         unsigned int flags, unsigned int outfmt);
00062     int (*control)(struct vf_instance *vf,
00063         int request, void* data);
00064     int (*query_format)(struct vf_instance *vf,
00065         unsigned int fmt);
00066     void (*get_image)(struct vf_instance *vf,
00067         mp_image_t *mpi);
00068     int (*put_image)(struct vf_instance *vf,
00069         mp_image_t *mpi, double pts);
00070     void (*start_slice)(struct vf_instance *vf,
00071         mp_image_t *mpi);
00072     void (*draw_slice)(struct vf_instance *vf,
00073         unsigned char** src, int* stride, int w,int h, int x, int y);
00074     void (*uninit)(struct vf_instance *vf);
00075 
00076     int (*continue_buffered_image)(struct vf_instance *vf);
00077     // caps:
00078     unsigned int default_caps; // used by default query_format()
00079     unsigned int default_reqs; // used by default config()
00080     // data:
00081     int w, h;
00082     vf_image_context_t imgctx;
00083     vf_format_context_t fmt;
00084     struct vf_instance *next;
00085     mp_image_t *dmpi;
00086     struct vf_priv_s* priv;
00087 } vf_instance_t;
00088 
00089 // control codes:
00090 #include "mpc_info.h"
00091 
00092 typedef struct vf_seteq_s
00093 {
00094     const char *item;
00095     int value;
00096 } vf_equalizer_t;
00097 
00098 #define VFCTRL_QUERY_MAX_PP_LEVEL 4 /* test for postprocessing support (max level) */
00099 #define VFCTRL_SET_PP_LEVEL 5 /* set postprocessing level */
00100 #define VFCTRL_SET_EQUALIZER 6 /* set color options (brightness,contrast etc) */
00101 #define VFCTRL_GET_EQUALIZER 8 /* gset color options (brightness,contrast etc) */
00102 #define VFCTRL_DRAW_OSD 7
00103 #define VFCTRL_CHANGE_RECTANGLE 9 /* Change the rectangle boundaries */
00104 #define VFCTRL_FLIP_PAGE 10 /* Tell the vo to flip pages */
00105 #define VFCTRL_DUPLICATE_FRAME 11 /* For encoding - encode zero-change frame */
00106 #define VFCTRL_SKIP_NEXT_FRAME 12 /* For encoding - drop the next frame that passes thru */
00107 #define VFCTRL_FLUSH_FRAMES    13 /* For encoding - flush delayed frames */
00108 #define VFCTRL_SCREENSHOT      14 /* Make a screenshot */
00109 #define VFCTRL_INIT_EOSD       15 /* Select EOSD renderer */
00110 #define VFCTRL_DRAW_EOSD       16 /* Render EOSD */
00111 #define VFCTRL_GET_PTS         17 /* Return last pts value that reached vf_vo*/
00112 #define VFCTRL_SET_DEINTERLACE 18 /* Set deinterlacing status */
00113 #define VFCTRL_GET_DEINTERLACE 19 /* Get deinterlacing status */
00114 
00115 #include "vfcap.h"
00116 
00117 //FIXME this should be in a common header, but i dunno which
00118 #define MP_NOPTS_VALUE (-1LL<<63) //both int64_t and double should be able to represent this exactly
00119 
00120 
00121 // functions:
00122 void vf_mpi_clear(mp_image_t* mpi,int x0,int y0,int w,int h);
00123 mp_image_t* vf_get_image(vf_instance_t* vf, unsigned int outfmt, int mp_imgtype, int mp_imgflag, int w, int h);
00124 
00125 vf_instance_t* vf_open_plugin(const vf_info_t* const* filter_list, vf_instance_t* next, const char *name, char **args);
00126 vf_instance_t* vf_open_filter(vf_instance_t* next, const char *name, char **args);
00127 vf_instance_t* vf_add_before_vo(vf_instance_t **vf, char *name, char **args);
00128 vf_instance_t* vf_open_encoder(vf_instance_t* next, const char *name, char *args);
00129 
00130 unsigned int vf_match_csp(vf_instance_t** vfp,const unsigned int* list,unsigned int preferred);
00131 void vf_clone_mpi_attributes(mp_image_t* dst, mp_image_t* src);
00132 void vf_queue_frame(vf_instance_t *vf, int (*)(vf_instance_t *));
00133 int vf_output_queued_frame(vf_instance_t *vf);
00134 
00135 // default wrappers:
00136 int vf_next_config(struct vf_instance *vf,
00137         int width, int height, int d_width, int d_height,
00138         unsigned int flags, unsigned int outfmt);
00139 int vf_next_control(struct vf_instance *vf, int request, void* data);
00140 void vf_extra_flip(struct vf_instance *vf);
00141 int vf_next_query_format(struct vf_instance *vf, unsigned int fmt);
00142 int vf_next_put_image(struct vf_instance *vf,mp_image_t *mpi, double pts);
00143 void vf_next_draw_slice (struct vf_instance *vf, unsigned char** src, int* stride, int w,int h, int x, int y);
00144 
00145 vf_instance_t* append_filters(vf_instance_t* last);
00146 
00147 void vf_uninit_filter(vf_instance_t* vf);
00148 void vf_uninit_filter_chain(vf_instance_t* vf);
00149 
00150 int vf_config_wrapper(struct vf_instance *vf,
00151                       int width, int height, int d_width, int d_height,
00152                       unsigned int flags, unsigned int outfmt);
00153 
00154 static inline int norm_qscale(int qscale, int type)
00155 {
00156     switch (type) {
00157     case 0: // MPEG-1
00158         return qscale;
00159     case 1: // MPEG-2
00160         return qscale >> 1;
00161     case 2: // H264
00162         return qscale >> 2;
00163     case 3: // VP56
00164         return (63 - qscale + 2) >> 2;
00165     }
00166     return qscale;
00167 }
00168 
00169 #endif /* MPLAYER_VF_H */

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