libmpcodecs/vf_vo.c

   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 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22
  23 #include "config.h"
  24 #include "mp_msg.h"
  25 #include "mpcommon.h"
  26 #include "mp_image.h"
  27 #include "vf.h"
  28
  29 #include "libvo/sub.h"
  30 #include "libvo/video_out.h"
  31
  32 #ifdef CONFIG_ASS
  33 #include "libass/ass_mp.h"
  34 #endif
  35
  36 //===========================================================================//
  37
  38 struct vf_priv_s {
  39     double pts;
  40     const vo_functions_t *vo;
  41 #ifdef CONFIG_ASS
  42     ass_renderer_t* ass_priv;
  43     int prev_visibility;
  44 #endif
  45 };
  46 #define video_out (vf->priv->vo)
  47
  48 static int query_format(struct vf_instance *vf, unsigned int fmt); /* forward declaration */
  49 static void draw_slice(struct vf_instance *vf, unsigned char** src, int* stride, int w,int h, int x, int y);
  50
  51 static int config(struct vf_instance *vf,
  52         int width, int height, int d_width, int d_height,
  53         unsigned int flags, unsigned int outfmt){
  54
  55     if ((width <= 0) || (height <= 0) || (d_width <= 0) || (d_height <= 0))
  56     {
  57         mp_msg(MSGT_CPLAYER, MSGL_ERR, "VO: invalid dimensions!\n");
  58         return 0;
  59     }
  60
  61   if(video_out->info)
  62   { const vo_info_t *info = video_out->info;
  63     mp_msg(MSGT_CPLAYER,MSGL_INFO,"VO: [%s] %dx%d => %dx%d %s %s%s%s%s\n",info->short_name,
  64          width, height,
  65          d_width, d_height,
  66          vo_format_name(outfmt),
  67          (flags&VOFLAG_FULLSCREEN)?" [fs]":"",
  68          (flags&VOFLAG_MODESWITCHING)?" [vm]":"",
  69          (flags&VOFLAG_SWSCALE)?" [zoom]":"",
  70          (flags&VOFLAG_FLIPPING)?" [flip]":"");
  71     mp_msg(MSGT_CPLAYER,MSGL_V,"VO: Description: %s\n",info->name);
  72     mp_msg(MSGT_CPLAYER,MSGL_V,"VO: Author: %s\n", info->author);
  73     if(info->comment && strlen(info->comment) > 0)
  74         mp_msg(MSGT_CPLAYER,MSGL_V,"VO: Comment: %s\n", info->comment);
  75   }
  76
  77     // save vo's stride capability for the wanted colorspace:
  78     vf->default_caps=query_format(vf,outfmt);
  79     vf->draw_slice = (vf->default_caps & VOCAP_NOSLICES) ? NULL : draw_slice;
  80
  81     if(config_video_out(video_out,width,height,d_width,d_height,flags,"MPlayer",outfmt))
  82         return 0;
  83
  84 #ifdef CONFIG_ASS
  85     if (vf->priv->ass_priv)
  86         ass_configure(vf->priv->ass_priv, width, height, !!(vf->default_caps & VFCAP_EOSD_UNSCALED));
  87 #endif
  88
  89     ++vo_config_count;
  90     return 1;
  91 }
  92
  93 static int control(struct vf_instance *vf, int request, void* data)
  94 {
  95     switch(request){
  96     case VFCTRL_GET_DEINTERLACE:
  97     {
  98         if(!video_out) return CONTROL_FALSE; // vo not configured?
  99         return(video_out->control(VOCTRL_GET_DEINTERLACE, data)
 100                 == VO_TRUE) ? CONTROL_TRUE : CONTROL_FALSE;
 101     }
 102     case VFCTRL_SET_DEINTERLACE:
 103     {
 104         if(!video_out) return CONTROL_FALSE; // vo not configured?
 105         return(video_out->control(VOCTRL_SET_DEINTERLACE, data)
 106                 == VO_TRUE) ? CONTROL_TRUE : CONTROL_FALSE;
 107     }
 108     case VFCTRL_DRAW_OSD:
 109         if(!vo_config_count) return CONTROL_FALSE; // vo not configured?
 110         video_out->draw_osd();
 111         return CONTROL_TRUE;
 112     case VFCTRL_FLIP_PAGE:
 113     {
 114         if(!vo_config_count) return CONTROL_FALSE; // vo not configured?
 115         video_out->flip_page();
 116         return CONTROL_TRUE;
 117     }
 118     case VFCTRL_SET_EQUALIZER:
 119     {
 120         vf_equalizer_t *eq=data;
 121         if(!vo_config_count) return CONTROL_FALSE; // vo not configured?
 122         return (video_out->control(VOCTRL_SET_EQUALIZER, eq->item, eq->value) == VO_TRUE) ? CONTROL_TRUE : CONTROL_FALSE;
 123     }
 124     case VFCTRL_GET_EQUALIZER:
 125     {
 126         vf_equalizer_t *eq=data;
 127         if(!vo_config_count) return CONTROL_FALSE; // vo not configured?
 128         return (video_out->control(VOCTRL_GET_EQUALIZER, eq->item, &eq->value) == VO_TRUE) ? CONTROL_TRUE : CONTROL_FALSE;
 129     }
 130 #ifdef CONFIG_ASS
 131     case VFCTRL_INIT_EOSD:
 132     {
 133         vf->priv->ass_priv = ass_renderer_init((ass_library_t*)data);
 134         if (!vf->priv->ass_priv) return CONTROL_FALSE;
 135         ass_configure_fonts(vf->priv->ass_priv);
 136         vf->priv->prev_visibility = 0;
 137         return CONTROL_TRUE;
 138     }
 139     case VFCTRL_DRAW_EOSD:
 140     {
 141         mp_eosd_images_t images = {NULL, 2};
 142         double pts = vf->priv->pts;
 143         if (!vo_config_count || !vf->priv->ass_priv) return CONTROL_FALSE;
 144         if (sub_visibility && vf->priv->ass_priv && ass_track && (pts != MP_NOPTS_VALUE)) {
 145             mp_eosd_res_t res;
 146             memset(&res, 0, sizeof(res));
 147             if (video_out->control(VOCTRL_GET_EOSD_RES, &res) == VO_TRUE) {
 148                 double dar = (double) (res.w - res.ml - res.mr) / (res.h - res.mt - res.mb);
 149                 ass_set_frame_size(vf->priv->ass_priv, res.w, res.h);
 150                 ass_set_margins(vf->priv->ass_priv, res.mt, res.mb, res.ml, res.mr);
 151 #if defined(LIBASS_VERSION) && LIBASS_VERSION >= 0x00907010
 152                 ass_set_aspect_ratio(vf->priv->ass_priv, dar, (double)res.srcw/res.srch);
 153 #else
 154                 ass_set_aspect_ratio(vf->priv->ass_priv, (double)res.w / res.h);
 155 #endif
 156             }
 157
 158             images.imgs = ass_mp_render_frame(vf->priv->ass_priv, ass_track, (pts+sub_delay) * 1000 + .5, &images.changed);
 159             if (!vf->priv->prev_visibility)
 160                 images.changed = 2;
 161             vf->priv->prev_visibility = 1;
 162         } else
 163             vf->priv->prev_visibility = 0;
 164         vf->priv->prev_visibility = sub_visibility;
 165         return (video_out->control(VOCTRL_DRAW_EOSD, &images) == VO_TRUE) ? CONTROL_TRUE : CONTROL_FALSE;
 166     }
 167 #endif
 168     case VFCTRL_GET_PTS:
 169     {
 170         *(double *)data = vf->priv->pts;
 171         return CONTROL_TRUE;
 172     }
 173     }
 174     // return video_out->control(request,data);
 175     return CONTROL_UNKNOWN;
 176 }
 177
 178 static int query_format(struct vf_instance *vf, unsigned int fmt){
 179     int flags=video_out->control(VOCTRL_QUERY_FORMAT,&fmt);
 180     // draw_slice() accepts stride, draw_frame() doesn't:
 181     if(flags)
 182         if(fmt==IMGFMT_YV12 || fmt==IMGFMT_I420 || fmt==IMGFMT_IYUV)
 183             flags|=VFCAP_ACCEPT_STRIDE;
 184     return flags;
 185 }
 186
 187 static void get_image(struct vf_instance *vf,
 188         mp_image_t *mpi){
 189     if(!vo_config_count) return;
 190     // GET_IMAGE is required for hardware-accelerated formats
 191     if(vo_directrendering ||
 192        IMGFMT_IS_XVMC(mpi->imgfmt) || IMGFMT_IS_VDPAU(mpi->imgfmt))
 193         video_out->control(VOCTRL_GET_IMAGE,mpi);
 194 }
 195
 196 static int put_image(struct vf_instance *vf,
 197         mp_image_t *mpi, double pts){
 198   if(!vo_config_count) return 0; // vo not configured?
 199   // record pts (potentially modified by filters) for main loop
 200   vf->priv->pts = pts;
 201   // first check, maybe the vo/vf plugin implements draw_image using mpi:
 202   if(video_out->control(VOCTRL_DRAW_IMAGE,mpi)==VO_TRUE) return 1; // done.
 203   // nope, fallback to old draw_frame/draw_slice:
 204   if(!(mpi->flags&(MP_IMGFLAG_DIRECT|MP_IMGFLAG_DRAW_CALLBACK))){
 205     // blit frame:
 206 //    if(mpi->flags&MP_IMGFLAG_PLANAR)
 207     if(vf->default_caps&VFCAP_ACCEPT_STRIDE)
 208         video_out->draw_slice(mpi->planes,mpi->stride,mpi->w,mpi->h,mpi->x,mpi->y);
 209     else
 210         video_out->draw_frame(mpi->planes);
 211   }
 212   return 1;
 213 }
 214
 215 static void start_slice(struct vf_instance *vf,
 216                        mp_image_t *mpi) {
 217     if(!vo_config_count) return; // vo not configured?
 218     video_out->control(VOCTRL_START_SLICE,mpi);
 219 }
 220
 221 static void draw_slice(struct vf_instance *vf,
 222         unsigned char** src, int* stride, int w,int h, int x, int y){
 223     if(!vo_config_count) return; // vo not configured?
 224     video_out->draw_slice(src,stride,w,h,x,y);
 225 }
 226
 227 static void uninit(struct vf_instance *vf)
 228 {
 229     if (vf->priv) {
 230 #ifdef CONFIG_ASS
 231         if (vf->priv->ass_priv)
 232             ass_renderer_done(vf->priv->ass_priv);
 233 #endif
 234         free(vf->priv);
 235     }
 236 }
 237 //===========================================================================//
 238
 239 static int vf_open(vf_instance_t *vf, char *args){
 240     vf->config=config;
 241     vf->control=control;
 242     vf->query_format=query_format;
 243     vf->get_image=get_image;
 244     vf->put_image=put_image;
 245     vf->draw_slice=draw_slice;
 246     vf->start_slice=start_slice;
 247     vf->uninit=uninit;
 248     vf->priv=calloc(1, sizeof(struct vf_priv_s));
 249     vf->priv->vo = (const vo_functions_t *)args;
 250     if(!video_out) return 0; // no vo ?
 251     return 1;
 252 }
 253
 254 const vf_info_t vf_info_vo = {
 255     "libvo wrapper",
 256     "vo",
 257     "A'rpi",
 258     "for internal use",
 259     vf_open,
 260     NULL
 261 };
 262
 263 //===========================================================================//