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 #include <stdbool.h>
  23
  24 #include "config.h"
  25 #include "mp_msg.h"
  26
  27 #include "mp_image.h"
  28 #include "vf.h"
  29
  30 #include "libvo/video_out.h"
  31
  32 #include "sub/ass_mp.h"
  33 #include "sub/sub.h"
  34
  35 //===========================================================================//
  36
  37 extern float sub_delay;
  38
  39 struct vf_priv_s {
  40     struct vo *vo;
  41 #ifdef CONFIG_ASS
  42     ASS_Renderer *renderer_realaspect;
  43     ASS_Renderer *renderer_vsfilter;
  44     bool prev_visibility;
  45     double scale_ratio;
  46 #endif
  47 };
  48 #define video_out (vf->priv->vo)
  49
  50 static int query_format(struct vf_instance *vf, unsigned int fmt); /* forward declaration */
  51 static void draw_slice(struct vf_instance *vf, unsigned char** src, int* stride, int w,int h, int x, int y);
  52
  53 static int config(struct vf_instance *vf,
  54         int width, int height, int d_width, int d_height,
  55         unsigned int flags, unsigned int outfmt){
  56
  57     if ((width <= 0) || (height <= 0) || (d_width <= 0) || (d_height <= 0))
  58     {
  59         mp_msg(MSGT_CPLAYER, MSGL_ERR, "VO: invalid dimensions!\n");
  60         return 0;
  61     }
  62
  63     const vo_info_t *info = video_out->driver->info;
  64     mp_msg(MSGT_CPLAYER,MSGL_INFO,"VO: [%s] %dx%d => %dx%d %s %s%s%s%s\n",info->short_name,
  65          width, height,
  66          d_width, d_height,
  67          vo_format_name(outfmt),
  68          (flags&VOFLAG_FULLSCREEN)?" [fs]":"",
  69          (flags&VOFLAG_MODESWITCHING)?" [vm]":"",
  70          (flags&VOFLAG_SWSCALE)?" [zoom]":"",
  71          (flags&VOFLAG_FLIPPING)?" [flip]":"");
  72     mp_msg(MSGT_CPLAYER,MSGL_V,"VO: Description: %s\n",info->name);
  73     mp_msg(MSGT_CPLAYER,MSGL_V,"VO: Author: %s\n", info->author);
  74     if(info->comment && strlen(info->comment) > 0)
  75         mp_msg(MSGT_CPLAYER,MSGL_V,"VO: Comment: %s\n", info->comment);
  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 (vo_config(video_out, width, height, d_width, d_height, flags, "MPlayer", outfmt))
  82         return 0;
  83
  84 #ifdef CONFIG_ASS
  85     vf->priv->scale_ratio = (double) d_width / d_height * height / width;
  86
  87     if (vf->priv->renderer_realaspect) {
  88         mp_ass_configure(vf->priv->renderer_realaspect, width, height,
  89                          vf->default_caps & VFCAP_EOSD_UNSCALED);
  90         mp_ass_configure(vf->priv->renderer_vsfilter, width, height,
  91                          vf->default_caps & VFCAP_EOSD_UNSCALED);
  92     }
  93 #endif
  94
  95     return 1;
  96 }
  97
  98 static int control(struct vf_instance *vf, int request, void* data)
  99 {
 100     switch(request){
 101     case VFCTRL_GET_DEINTERLACE:
 102     {
 103         if(!video_out) return CONTROL_FALSE; // vo not configured?
 104         return vo_control(video_out, VOCTRL_GET_DEINTERLACE, data) == VO_TRUE;
 105     }
 106     case VFCTRL_SET_DEINTERLACE:
 107     {
 108         if(!video_out) return CONTROL_FALSE; // vo not configured?
 109         return vo_control(video_out, VOCTRL_SET_DEINTERLACE, data) == VO_TRUE;
 110     }
 111     case VFCTRL_GET_YUV_COLORSPACE:
 112         return vo_control(video_out, VOCTRL_GET_YUV_COLORSPACE, data) == true;
 113     case VFCTRL_SET_YUV_COLORSPACE:
 114         return vo_control(video_out, VOCTRL_SET_YUV_COLORSPACE, data) == true;
 115     case VFCTRL_DRAW_OSD:
 116         if(!video_out->config_ok) return CONTROL_FALSE; // vo not configured?
 117         vo_draw_osd(video_out, data);
 118         return CONTROL_TRUE;
 119     case VFCTRL_REDRAW_OSD:
 120         return vo_control(video_out, VOCTRL_REDRAW_OSD, data) == true;
 121     case VFCTRL_SET_EQUALIZER:
 122     {
 123         vf_equalizer_t *eq=data;
 124         if(!video_out->config_ok) return CONTROL_FALSE; // vo not configured?
 125         struct voctrl_set_equalizer_args param = {eq->item, eq->value};
 126         return vo_control(video_out, VOCTRL_SET_EQUALIZER, &param) == VO_TRUE;
 127     }
 128     case VFCTRL_GET_EQUALIZER:
 129     {
 130         vf_equalizer_t *eq=data;
 131         if(!video_out->config_ok) return CONTROL_FALSE; // vo not configured?
 132         struct voctrl_get_equalizer_args param = {eq->item, &eq->value};
 133         return vo_control(video_out, VOCTRL_GET_EQUALIZER, &param) == VO_TRUE;
 134     }
 135 #ifdef CONFIG_ASS
 136     case VFCTRL_INIT_EOSD:
 137     {
 138         vf->priv->renderer_realaspect = ass_renderer_init(data);
 139         if (!vf->priv->renderer_realaspect)
 140             return CONTROL_FALSE;
 141         vf->priv->renderer_vsfilter = ass_renderer_init(data);
 142         if (!vf->priv->renderer_vsfilter) {
 143             ass_renderer_done(vf->priv->renderer_realaspect);
 144             return CONTROL_FALSE;
 145         }
 146         mp_ass_configure_fonts(vf->priv->renderer_realaspect);
 147         mp_ass_configure_fonts(vf->priv->renderer_vsfilter);
 148         vf->priv->prev_visibility = false;
 149         return CONTROL_TRUE;
 150     }
 151     case VFCTRL_DRAW_EOSD:
 152     {
 153         struct osd_state *osd = data;
 154         mp_eosd_images_t images = {NULL, 2};
 155         double pts = video_out->next_pts;
 156         ASS_Renderer *renderer;
 157         double scale;
 158         if (osd->vsfilter_aspect) {
 159             renderer = vf->priv->renderer_vsfilter;
 160             scale = vf->priv->scale_ratio;
 161         } else {
 162             renderer = vf->priv->renderer_realaspect;
 163             scale = 1;
 164         }
 165         if (!video_out->config_ok || !renderer)
 166             return CONTROL_FALSE;
 167         if (osd->ass_track_changed)
 168             vf->priv->prev_visibility = false;
 169         osd->ass_track_changed = false;
 170         if (sub_visibility && osd->ass_track && (pts != MP_NOPTS_VALUE)) {
 171             struct mp_eosd_res res = {0};
 172             if (vo_control(video_out, VOCTRL_GET_EOSD_RES, &res) == VO_TRUE) {
 173                 ass_set_frame_size(renderer, res.w, res.h);
 174                 ass_set_margins(renderer, res.mt, res.mb, res.ml, res.mr);
 175                 ass_set_aspect_ratio(renderer, scale, 1);
 176             }
 177
 178             images.imgs = mp_ass_render_frame(renderer,
 179                                               osd->ass_track,
 180                                               (pts+sub_delay) * 1000 + .5,
 181                                               &images.changed);
 182             if (!vf->priv->prev_visibility)
 183                 images.changed = 2;
 184             vf->priv->prev_visibility = true;
 185         } else
 186             vf->priv->prev_visibility = false;
 187         return vo_control(video_out, VOCTRL_DRAW_EOSD, &images) == VO_TRUE;
 188     }
 189 #endif
 190     }
 191     return CONTROL_UNKNOWN;
 192 }
 193
 194 static int query_format(struct vf_instance *vf, unsigned int fmt){
 195     int flags = vo_control(video_out, VOCTRL_QUERY_FORMAT, &fmt);
 196     // draw_slice() accepts stride, draw_frame() doesn't:
 197     if(flags)
 198         if(fmt==IMGFMT_YV12 || fmt==IMGFMT_I420 || fmt==IMGFMT_IYUV)
 199             flags|=VFCAP_ACCEPT_STRIDE;
 200     return flags;
 201 }
 202
 203 static void get_image(struct vf_instance *vf,
 204         mp_image_t *mpi){
 205     if (!video_out->config_ok)
 206         return;
 207     // GET_IMAGE is required for hardware-accelerated formats
 208     if(vo_directrendering ||
 209        IMGFMT_IS_HWACCEL(mpi->imgfmt))
 210         vo_control(video_out, VOCTRL_GET_IMAGE, mpi);
 211 }
 212
 213 static int put_image(struct vf_instance *vf,
 214         mp_image_t *mpi, double pts){
 215   if(!video_out->config_ok) return 0; // vo not configured?
 216   // first check, maybe the vo/vf plugin implements draw_image using mpi:
 217   if (vo_draw_image(video_out, mpi, pts) >= 0)
 218       return 1;
 219   // nope, fallback to old draw_frame/draw_slice:
 220   if(!(mpi->flags&(MP_IMGFLAG_DIRECT|MP_IMGFLAG_DRAW_CALLBACK))){
 221     // blit frame:
 222 //    if(mpi->flags&MP_IMGFLAG_PLANAR)
 223     if(vf->default_caps&VFCAP_ACCEPT_STRIDE)
 224         vo_draw_slice(video_out, mpi->planes,mpi->stride,mpi->w,mpi->h,mpi->x,mpi->y);
 225     else
 226         vo_draw_frame(video_out, mpi->planes);
 227   }
 228   return 1;
 229 }
 230
 231 static void start_slice(struct vf_instance *vf,
 232                        mp_image_t *mpi) {
 233     if(!video_out->config_ok) return; // vo not configured?
 234     vo_control(video_out, VOCTRL_START_SLICE,mpi);
 235 }
 236
 237 static void draw_slice(struct vf_instance *vf,
 238         unsigned char** src, int* stride, int w,int h, int x, int y){
 239     if(!video_out->config_ok) return; // vo not configured?
 240     vo_draw_slice(video_out, src,stride,w,h,x,y);
 241 }
 242
 243 static void uninit(struct vf_instance *vf)
 244 {
 245     if (vf->priv) {
 246         /* Allow VO (which may live on to work with another instance of vf_vo)
 247          * to get rid of numbered-mpi references that will now be invalid. */
 248         vo_seek_reset(video_out);
 249 #ifdef CONFIG_ASS
 250         if (vf->priv->renderer_realaspect) {
 251             ass_renderer_done(vf->priv->renderer_realaspect);
 252             ass_renderer_done(vf->priv->renderer_vsfilter);
 253         }
 254 #endif
 255         free(vf->priv);
 256     }
 257 }
 258 //===========================================================================//
 259
 260 static int vf_open(vf_instance_t *vf, char *args){
 261     vf->config=config;
 262     vf->control=control;
 263     vf->query_format=query_format;
 264     vf->get_image=get_image;
 265     vf->put_image=put_image;
 266     vf->draw_slice=draw_slice;
 267     vf->start_slice=start_slice;
 268     vf->uninit=uninit;
 269     vf->priv=calloc(1, sizeof(struct vf_priv_s));
 270     vf->priv->vo = (struct vo *)args;
 271     if(!video_out) return 0; // no vo ?
 272     return 1;
 273 }
 274
 275 const vf_info_t vf_info_vo = {
 276     "libvo wrapper",
 277     "vo",
 278     "A'rpi",
 279     "for internal use",
 280     vf_open,
 281     NULL
 282 };
 283
 284 //===========================================================================//