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
  26 #include "mp_image.h"
  27 #include "vf.h"
  28
  29 #include "libvo/video_out.h"
  30
  31 #ifdef CONFIG_ASS
  32 #include "libass/ass_mp.h"
  33 extern ass_track_t* ass_track;
  34 #endif
  35
  36 //===========================================================================//
  37
  38 extern int sub_visibility;
  39 extern float sub_delay;
  40
  41 struct vf_priv_s {
  42     double pts;
  43     const vo_functions_t *vo;
  44 #ifdef CONFIG_ASS
  45     ass_renderer_t* ass_priv;
  46     int prev_visibility;
  47 #endif
  48 };
  49 #define video_out (vf->priv->vo)
  50
  51 static int query_format(struct vf_instance *vf, unsigned int fmt); /* forward declaration */
  52 static void draw_slice(struct vf_instance *vf, unsigned char** src, int* stride, int w,int h, int x, int y);
  53
  54 static int config(struct vf_instance *vf,
  55         int width, int height, int d_width, int d_height,
  56         unsigned int flags, unsigned int outfmt){
  57
  58     if ((width <= 0) || (height <= 0) || (d_width <= 0) || (d_height <= 0))
  59     {
  60         mp_msg(MSGT_CPLAYER, MSGL_ERR, "VO: invalid dimensions!\n");
  61         return 0;
  62     }
  63
  64   if(video_out->info)
  65   { const vo_info_t *info = video_out->info;
  66     mp_msg(MSGT_CPLAYER,MSGL_INFO,"VO: [%s] %dx%d => %dx%d %s %s%s%s%s\n",info->short_name,
  67          width, height,
  68          d_width, d_height,
  69          vo_format_name(outfmt),
  70          (flags&VOFLAG_FULLSCREEN)?" [fs]":"",
  71          (flags&VOFLAG_MODESWITCHING)?" [vm]":"",
  72          (flags&VOFLAG_SWSCALE)?" [zoom]":"",
  73          (flags&VOFLAG_FLIPPING)?" [flip]":"");
  74     mp_msg(MSGT_CPLAYER,MSGL_V,"VO: Description: %s\n",info->name);
  75     mp_msg(MSGT_CPLAYER,MSGL_V,"VO: Author: %s\n", info->author);
  76     if(info->comment && strlen(info->comment) > 0)
  77         mp_msg(MSGT_CPLAYER,MSGL_V,"VO: Comment: %s\n", info->comment);
  78   }
  79
  80     // save vo's stride capability for the wanted colorspace:
  81     vf->default_caps=query_format(vf,outfmt);
  82     vf->draw_slice = (vf->default_caps & VOCAP_NOSLICES) ? NULL : draw_slice;
  83
  84     if(config_video_out(video_out,width,height,d_width,d_height,flags,"MPlayer",outfmt))
  85         return 0;
  86
  87 #ifdef CONFIG_ASS
  88     if (vf->priv->ass_priv)
  89         ass_configure(vf->priv->ass_priv, width, height, !!(vf->default_caps & VFCAP_EOSD_UNSCALED));
  90 #endif
  91
  92     ++vo_config_count;
  93     return 1;
  94 }
  95
  96 static int control(struct vf_instance *vf, int request, void* data)
  97 {
  98     switch(request){
  99     case VFCTRL_GET_DEINTERLACE:
 100     {
 101         if(!video_out) return CONTROL_FALSE; // vo not configured?
 102         return(video_out->control(VOCTRL_GET_DEINTERLACE, data)
 103                 == VO_TRUE) ? CONTROL_TRUE : CONTROL_FALSE;
 104     }
 105     case VFCTRL_SET_DEINTERLACE:
 106     {
 107         if(!video_out) return CONTROL_FALSE; // vo not configured?
 108         return(video_out->control(VOCTRL_SET_DEINTERLACE, data)
 109                 == VO_TRUE) ? CONTROL_TRUE : CONTROL_FALSE;
 110     }
 111     case VFCTRL_DRAW_OSD:
 112         if(!vo_config_count) return CONTROL_FALSE; // vo not configured?
 113         video_out->draw_osd();
 114         return CONTROL_TRUE;
 115     case VFCTRL_FLIP_PAGE:
 116     {
 117         if(!vo_config_count) return CONTROL_FALSE; // vo not configured?
 118         video_out->flip_page();
 119         return CONTROL_TRUE;
 120     }
 121     case VFCTRL_SET_EQUALIZER:
 122     {
 123         vf_equalizer_t *eq=data;
 124         if(!vo_config_count) return CONTROL_FALSE; // vo not configured?
 125         return (video_out->control(VOCTRL_SET_EQUALIZER, eq->item, eq->value) == VO_TRUE) ? CONTROL_TRUE : CONTROL_FALSE;
 126     }
 127     case VFCTRL_GET_EQUALIZER:
 128     {
 129         vf_equalizer_t *eq=data;
 130         if(!vo_config_count) return CONTROL_FALSE; // vo not configured?
 131         return (video_out->control(VOCTRL_GET_EQUALIZER, eq->item, &eq->value) == VO_TRUE) ? CONTROL_TRUE : CONTROL_FALSE;
 132     }
 133 #ifdef CONFIG_ASS
 134     case VFCTRL_INIT_EOSD:
 135     {
 136         vf->priv->ass_priv = ass_renderer_init((ass_library_t*)data);
 137         if (!vf->priv->ass_priv) return CONTROL_FALSE;
 138         ass_configure_fonts(vf->priv->ass_priv);
 139         vf->priv->prev_visibility = 0;
 140         return CONTROL_TRUE;
 141     }
 142     case VFCTRL_DRAW_EOSD:
 143     {
 144         mp_eosd_images_t images = {NULL, 2};
 145         double pts = vf->priv->pts;
 146         if (!vo_config_count || !vf->priv->ass_priv) return CONTROL_FALSE;
 147         if (sub_visibility && vf->priv->ass_priv && ass_track && (pts != MP_NOPTS_VALUE)) {
 148             mp_eosd_res_t res;
 149             memset(&res, 0, sizeof(res));
 150             if (video_out->control(VOCTRL_GET_EOSD_RES, &res) == VO_TRUE) {
 151                 double dar = (double) (res.w - res.ml - res.mr) / (res.h - res.mt - res.mb);
 152                 ass_set_frame_size(vf->priv->ass_priv, res.w, res.h);
 153                 ass_set_margins(vf->priv->ass_priv, res.mt, res.mb, res.ml, res.mr);
 154 #if defined(LIBASS_VERSION) && LIBASS_VERSION >= 0x00908000
 155                 ass_set_aspect_ratio(vf->priv->ass_priv, dar, (double)res.srcw/res.srch);
 156 #else
 157                 ass_set_aspect_ratio(vf->priv->ass_priv, (double)res.w / res.h);
 158 #endif
 159             }
 160
 161             images.imgs = ass_mp_render_frame(vf->priv->ass_priv, ass_track, (pts+sub_delay) * 1000 + .5, &images.changed);
 162             if (!vf->priv->prev_visibility)
 163                 images.changed = 2;
 164             vf->priv->prev_visibility = 1;
 165         } else
 166             vf->priv->prev_visibility = 0;
 167         vf->priv->prev_visibility = sub_visibility;
 168         return (video_out->control(VOCTRL_DRAW_EOSD, &images) == VO_TRUE) ? CONTROL_TRUE : CONTROL_FALSE;
 169     }
 170 #endif
 171     case VFCTRL_GET_PTS:
 172     {
 173         *(double *)data = vf->priv->pts;
 174         return CONTROL_TRUE;
 175     }
 176     }
 177     // return video_out->control(request,data);
 178     return CONTROL_UNKNOWN;
 179 }
 180
 181 static int query_format(struct vf_instance *vf, unsigned int fmt){
 182     int flags=video_out->control(VOCTRL_QUERY_FORMAT,&fmt);
 183     // draw_slice() accepts stride, draw_frame() doesn't:
 184     if(flags)
 185         if(fmt==IMGFMT_YV12 || fmt==IMGFMT_I420 || fmt==IMGFMT_IYUV)
 186             flags|=VFCAP_ACCEPT_STRIDE;
 187     return flags;
 188 }
 189
 190 static void get_image(struct vf_instance *vf,
 191         mp_image_t *mpi){
 192     if(!vo_config_count) return;
 193     // GET_IMAGE is required for hardware-accelerated formats
 194     if(vo_directrendering ||
 195        IMGFMT_IS_XVMC(mpi->imgfmt) || IMGFMT_IS_VDPAU(mpi->imgfmt))
 196         video_out->control(VOCTRL_GET_IMAGE,mpi);
 197 }
 198
 199 static int put_image(struct vf_instance *vf,
 200         mp_image_t *mpi, double pts){
 201   if(!vo_config_count) return 0; // vo not configured?
 202   // record pts (potentially modified by filters) for main loop
 203   vf->priv->pts = pts;
 204   // first check, maybe the vo/vf plugin implements draw_image using mpi:
 205   if(video_out->control(VOCTRL_DRAW_IMAGE,mpi)==VO_TRUE) return 1; // done.
 206   // nope, fallback to old draw_frame/draw_slice:
 207   if(!(mpi->flags&(MP_IMGFLAG_DIRECT|MP_IMGFLAG_DRAW_CALLBACK))){
 208     // blit frame:
 209 //    if(mpi->flags&MP_IMGFLAG_PLANAR)
 210     if(vf->default_caps&VFCAP_ACCEPT_STRIDE)
 211         video_out->draw_slice(mpi->planes,mpi->stride,mpi->w,mpi->h,mpi->x,mpi->y);
 212     else
 213         video_out->draw_frame(mpi->planes);
 214   }
 215   return 1;
 216 }
 217
 218 static void start_slice(struct vf_instance *vf,
 219                        mp_image_t *mpi) {
 220     if(!vo_config_count) return; // vo not configured?
 221     video_out->control(VOCTRL_START_SLICE,mpi);
 222 }
 223
 224 static void draw_slice(struct vf_instance *vf,
 225         unsigned char** src, int* stride, int w,int h, int x, int y){
 226     if(!vo_config_count) return; // vo not configured?
 227     video_out->draw_slice(src,stride,w,h,x,y);
 228 }
 229
 230 static void uninit(struct vf_instance *vf)
 231 {
 232     if (vf->priv) {
 233 #ifdef CONFIG_ASS
 234         if (vf->priv->ass_priv)
 235             ass_renderer_done(vf->priv->ass_priv);
 236 #endif
 237         free(vf->priv);
 238     }
 239 }
 240 //===========================================================================//
 241
 242 static int vf_open(vf_instance_t *vf, char *args){
 243     vf->config=config;
 244     vf->control=control;
 245     vf->query_format=query_format;
 246     vf->get_image=get_image;
 247     vf->put_image=put_image;
 248     vf->draw_slice=draw_slice;
 249     vf->start_slice=start_slice;
 250     vf->uninit=uninit;
 251     vf->priv=calloc(1, sizeof(struct vf_priv_s));
 252     vf->priv->vo = (const vo_functions_t *)args;
 253     if(!video_out) return 0; // no vo ?
 254     return 1;
 255 }
 256
 257 const vf_info_t vf_info_vo = {
 258     "libvo wrapper",
 259     "vo",
 260     "A'rpi",
 261     "for internal use",
 262     vf_open,
 263     NULL
 264 };
 265
 266 //===========================================================================//