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 "ass_mp.h"
  33 #include "libvo/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 *ass_priv;
  43     int prev_visibility;
  44     double scale_ratio;
  45 #endif
  46 };
  47 #define video_out (vf->priv->vo)
  48
  49 static int query_format(struct vf_instance *vf, unsigned int fmt); /* forward declaration */
  50 static void draw_slice(struct vf_instance *vf, unsigned char** src, int* stride, int w,int h, int x, int y);
  51
  52 static int config(struct vf_instance *vf,
  53         int width, int height, int d_width, int d_height,
  54         unsigned int flags, unsigned int outfmt){
  55
  56     if ((width <= 0) || (height <= 0) || (d_width <= 0) || (d_height <= 0))
  57     {
  58         mp_msg(MSGT_CPLAYER, MSGL_ERR, "VO: invalid dimensions!\n");
  59         return 0;
  60     }
  61
  62     const vo_info_t *info = video_out->driver->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     // save vo's stride capability for the wanted colorspace:
  77     vf->default_caps=query_format(vf,outfmt);
  78     vf->draw_slice = (vf->default_caps & VOCAP_NOSLICES) ? NULL : draw_slice;
  79
  80     if (vo_config(video_out, width, height, d_width, d_height, flags, "MPlayer", outfmt))
  81         return 0;
  82
  83 #ifdef CONFIG_ASS
  84     vf->priv->scale_ratio = (double) d_width / d_height * height / width;
  85
  86     if (vf->priv->ass_priv)
  87         ass_configure(vf->priv->ass_priv, width, height, !!(vf->default_caps & VFCAP_EOSD_UNSCALED));
  88 #endif
  89
  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 vo_control(video_out, VOCTRL_GET_DEINTERLACE, data) == VO_TRUE;
 100     }
 101     case VFCTRL_SET_DEINTERLACE:
 102     {
 103         if(!video_out) return CONTROL_FALSE; // vo not configured?
 104         return vo_control(video_out, VOCTRL_SET_DEINTERLACE, data) == VO_TRUE;
 105     }
 106     case VFCTRL_GET_YUV_COLORSPACE:
 107         return vo_control(video_out, VOCTRL_GET_YUV_COLORSPACE, data) == true;
 108     case VFCTRL_SET_YUV_COLORSPACE:
 109         return vo_control(video_out, VOCTRL_SET_YUV_COLORSPACE, data) == true;
 110     case VFCTRL_DRAW_OSD:
 111         if(!video_out->config_ok) return CONTROL_FALSE; // vo not configured?
 112         vo_draw_osd(video_out, data);
 113         return CONTROL_TRUE;
 114     case VFCTRL_REDRAW_OSD:
 115         return vo_control(video_out, VOCTRL_REDRAW_OSD, data) == true;
 116     case VFCTRL_SET_EQUALIZER:
 117     {
 118         vf_equalizer_t *eq=data;
 119         if(!video_out->config_ok) return CONTROL_FALSE; // vo not configured?
 120         struct voctrl_set_equalizer_args param = {eq->item, eq->value};
 121         return vo_control(video_out, VOCTRL_SET_EQUALIZER, &param) == VO_TRUE;
 122     }
 123     case VFCTRL_GET_EQUALIZER:
 124     {
 125         vf_equalizer_t *eq=data;
 126         if(!video_out->config_ok) return CONTROL_FALSE; // vo not configured?
 127         struct voctrl_get_equalizer_args param = {eq->item, &eq->value};
 128         return vo_control(video_out, VOCTRL_GET_EQUALIZER, &param) == VO_TRUE;
 129     }
 130 #ifdef CONFIG_ASS
 131     case VFCTRL_INIT_EOSD:
 132     {
 133         vf->priv->ass_priv = ass_renderer_init((ASS_Library*)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         struct osd_state *osd = data;
 142         mp_eosd_images_t images = {NULL, 2};
 143         double pts = video_out->next_pts;
 144         if (!video_out->config_ok || !vf->priv->ass_priv) return CONTROL_FALSE;
 145         if (sub_visibility && vf->priv->ass_priv && osd->ass_track
 146             && (pts != MP_NOPTS_VALUE)) {
 147             mp_eosd_res_t res;
 148             memset(&res, 0, sizeof(res));
 149             if (vo_control(video_out, VOCTRL_GET_EOSD_RES, &res) == VO_TRUE) {
 150                 ass_set_frame_size(vf->priv->ass_priv, res.w, res.h);
 151                 ass_set_margins(vf->priv->ass_priv, res.mt, res.mb, res.ml, res.mr);
 152                 ass_set_aspect_ratio(vf->priv->ass_priv, vf->priv->scale_ratio, 1);
 153             }
 154
 155             images.imgs = ass_mp_render_frame(vf->priv->ass_priv,
 156                                               osd->ass_track,
 157                                               (pts+sub_delay) * 1000 + .5,
 158                                               &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         return vo_control(video_out, VOCTRL_DRAW_EOSD, &images) == VO_TRUE;
 165     }
 166 #endif
 167     }
 168     return CONTROL_UNKNOWN;
 169 }
 170
 171 static int query_format(struct vf_instance *vf, unsigned int fmt){
 172     int flags = vo_control(video_out, VOCTRL_QUERY_FORMAT, &fmt);
 173     // draw_slice() accepts stride, draw_frame() doesn't:
 174     if(flags)
 175         if(fmt==IMGFMT_YV12 || fmt==IMGFMT_I420 || fmt==IMGFMT_IYUV)
 176             flags|=VFCAP_ACCEPT_STRIDE;
 177     return flags;
 178 }
 179
 180 static void get_image(struct vf_instance *vf,
 181         mp_image_t *mpi){
 182     if (!video_out->config_ok)
 183         return;
 184     // GET_IMAGE is required for hardware-accelerated formats
 185     if(vo_directrendering ||
 186        IMGFMT_IS_HWACCEL(mpi->imgfmt))
 187         vo_control(video_out, VOCTRL_GET_IMAGE, mpi);
 188 }
 189
 190 static int put_image(struct vf_instance *vf,
 191         mp_image_t *mpi, double pts){
 192   if(!video_out->config_ok) return 0; // vo not configured?
 193   // first check, maybe the vo/vf plugin implements draw_image using mpi:
 194   if (vo_draw_image(video_out, mpi, pts) >= 0)
 195       return 1;
 196   // nope, fallback to old draw_frame/draw_slice:
 197   if(!(mpi->flags&(MP_IMGFLAG_DIRECT|MP_IMGFLAG_DRAW_CALLBACK))){
 198     // blit frame:
 199 //    if(mpi->flags&MP_IMGFLAG_PLANAR)
 200     if(vf->default_caps&VFCAP_ACCEPT_STRIDE)
 201         vo_draw_slice(video_out, mpi->planes,mpi->stride,mpi->w,mpi->h,mpi->x,mpi->y);
 202     else
 203         vo_draw_frame(video_out, mpi->planes);
 204   }
 205   return 1;
 206 }
 207
 208 static void start_slice(struct vf_instance *vf,
 209                        mp_image_t *mpi) {
 210     if(!video_out->config_ok) return; // vo not configured?
 211     vo_control(video_out, VOCTRL_START_SLICE,mpi);
 212 }
 213
 214 static void draw_slice(struct vf_instance *vf,
 215         unsigned char** src, int* stride, int w,int h, int x, int y){
 216     if(!video_out->config_ok) return; // vo not configured?
 217     vo_draw_slice(video_out, src,stride,w,h,x,y);
 218 }
 219
 220 static void uninit(struct vf_instance *vf)
 221 {
 222     if (vf->priv) {
 223         /* Allow VO (which may live on to work with another instance of vf_vo)
 224          * to get rid of numbered-mpi references that will now be invalid. */
 225         vo_seek_reset(video_out);
 226 #ifdef CONFIG_ASS
 227         if (vf->priv->ass_priv)
 228             ass_renderer_done(vf->priv->ass_priv);
 229 #endif
 230         free(vf->priv);
 231     }
 232 }
 233 //===========================================================================//
 234
 235 static int vf_open(vf_instance_t *vf, char *args){
 236     vf->config=config;
 237     vf->control=control;
 238     vf->query_format=query_format;
 239     vf->get_image=get_image;
 240     vf->put_image=put_image;
 241     vf->draw_slice=draw_slice;
 242     vf->start_slice=start_slice;
 243     vf->uninit=uninit;
 244     vf->priv=calloc(1, sizeof(struct vf_priv_s));
 245     vf->priv->vo = (struct vo *)args;
 246     if(!video_out) return 0; // no vo ?
 247     return 1;
 248 }
 249
 250 const vf_info_t vf_info_vo = {
 251     "libvo wrapper",
 252     "vo",
 253     "A'rpi",
 254     "for internal use",
 255     vf_open,
 256     NULL
 257 };
 258
 259 //===========================================================================//