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 #ifdef CONFIG_ASS
  33 #include "ass_mp.h"
  34 extern ASS_Track *ass_track;
  35 #endif
  36
  37 //===========================================================================//
  38
  39 extern int sub_visibility;
  40 extern float sub_delay;
  41
  42 struct vf_priv_s {
  43     struct vo *vo;
  44 #ifdef CONFIG_ASS
  45     ASS_Renderer *ass_priv;
  46     int prev_visibility;
  47     double scale_ratio;
  48 #endif
  49 };
  50 #define video_out (vf->priv->vo)
  51
  52 static int query_format(struct vf_instance *vf, unsigned int fmt); /* forward declaration */
  53 static void draw_slice(struct vf_instance *vf, unsigned char** src, int* stride, int w,int h, int x, int y);
  54
  55 static int config(struct vf_instance *vf,
  56         int width, int height, int d_width, int d_height,
  57         unsigned int flags, unsigned int outfmt){
  58
  59     if ((width <= 0) || (height <= 0) || (d_width <= 0) || (d_height <= 0))
  60     {
  61         mp_msg(MSGT_CPLAYER, MSGL_ERR, "VO: invalid dimensions!\n");
  62         return 0;
  63     }
  64
  65     const vo_info_t *info = video_out->driver->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     // save vo's stride capability for the wanted colorspace:
  80     vf->default_caps=query_format(vf,outfmt);
  81     vf->draw_slice = (vf->default_caps & VOCAP_NOSLICES) ? NULL : draw_slice;
  82
  83     if (vo_config(video_out, width, height, d_width, d_height, flags, "MPlayer", outfmt))
  84         return 0;
  85
  86 #ifdef CONFIG_ASS
  87     vf->priv->scale_ratio = (double) d_width / d_height * height / width;
  88
  89     if (vf->priv->ass_priv)
  90         ass_configure(vf->priv->ass_priv, width, height, !!(vf->default_caps & VFCAP_EOSD_UNSCALED));
  91 #endif
  92
  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 vo_control(video_out, VOCTRL_GET_DEINTERLACE, data) == VO_TRUE;
 103     }
 104     case VFCTRL_SET_DEINTERLACE:
 105     {
 106         if(!video_out) return CONTROL_FALSE; // vo not configured?
 107         return vo_control(video_out, VOCTRL_SET_DEINTERLACE, data) == VO_TRUE;
 108     }
 109     case VFCTRL_GET_YUV_COLORSPACE:
 110         return vo_control(video_out, VOCTRL_GET_YUV_COLORSPACE, data) == true;
 111     case VFCTRL_SET_YUV_COLORSPACE:
 112         return vo_control(video_out, VOCTRL_SET_YUV_COLORSPACE, data) == true;
 113     case VFCTRL_DRAW_OSD:
 114         if(!video_out->config_ok) return CONTROL_FALSE; // vo not configured?
 115         vo_draw_osd(video_out, data);
 116         return CONTROL_TRUE;
 117     case VFCTRL_REDRAW_OSD:
 118         return vo_control(video_out, VOCTRL_REDRAW_OSD, data) == true;
 119     case VFCTRL_SET_EQUALIZER:
 120     {
 121         vf_equalizer_t *eq=data;
 122         if(!video_out->config_ok) return CONTROL_FALSE; // vo not configured?
 123         struct voctrl_set_equalizer_args param = {eq->item, eq->value};
 124         return vo_control(video_out, VOCTRL_SET_EQUALIZER, &param) == VO_TRUE;
 125     }
 126     case VFCTRL_GET_EQUALIZER:
 127     {
 128         vf_equalizer_t *eq=data;
 129         if(!video_out->config_ok) return CONTROL_FALSE; // vo not configured?
 130         struct voctrl_get_equalizer_args param = {eq->item, &eq->value};
 131         return vo_control(video_out, VOCTRL_GET_EQUALIZER, &param) == VO_TRUE;
 132     }
 133 #ifdef CONFIG_ASS
 134     case VFCTRL_INIT_EOSD:
 135     {
 136         vf->priv->ass_priv = ass_renderer_init((ASS_Library*)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 = video_out->next_pts;
 146         if (!video_out->config_ok || !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 (vo_control(video_out, VOCTRL_GET_EOSD_RES, &res) == VO_TRUE) {
 151                 ass_set_frame_size(vf->priv->ass_priv, res.w, res.h);
 152                 ass_set_margins(vf->priv->ass_priv, res.mt, res.mb, res.ml, res.mr);
 153                 ass_set_aspect_ratio(vf->priv->ass_priv, vf->priv->scale_ratio, 1);
 154             }
 155
 156             images.imgs = ass_mp_render_frame(vf->priv->ass_priv, ass_track, (pts+sub_delay) * 1000 + .5, &images.changed);
 157             if (!vf->priv->prev_visibility)
 158                 images.changed = 2;
 159             vf->priv->prev_visibility = 1;
 160         } else
 161             vf->priv->prev_visibility = 0;
 162         vf->priv->prev_visibility = sub_visibility;
 163         return vo_control(video_out, VOCTRL_DRAW_EOSD, &images) == VO_TRUE;
 164     }
 165 #endif
 166     }
 167     return CONTROL_UNKNOWN;
 168 }
 169
 170 static int query_format(struct vf_instance *vf, unsigned int fmt){
 171     int flags = vo_control(video_out, VOCTRL_QUERY_FORMAT, &fmt);
 172     // draw_slice() accepts stride, draw_frame() doesn't:
 173     if(flags)
 174         if(fmt==IMGFMT_YV12 || fmt==IMGFMT_I420 || fmt==IMGFMT_IYUV)
 175             flags|=VFCAP_ACCEPT_STRIDE;
 176     return flags;
 177 }
 178
 179 static void get_image(struct vf_instance *vf,
 180         mp_image_t *mpi){
 181     if (!video_out->config_ok)
 182         return;
 183     // GET_IMAGE is required for hardware-accelerated formats
 184     if(vo_directrendering ||
 185        IMGFMT_IS_HWACCEL(mpi->imgfmt))
 186         vo_control(video_out, VOCTRL_GET_IMAGE, mpi);
 187 }
 188
 189 static int put_image(struct vf_instance *vf,
 190         mp_image_t *mpi, double pts){
 191   if(!video_out->config_ok) return 0; // vo not configured?
 192   // first check, maybe the vo/vf plugin implements draw_image using mpi:
 193   if (vo_draw_image(video_out, mpi, pts) >= 0)
 194       return 1;
 195   // nope, fallback to old draw_frame/draw_slice:
 196   if(!(mpi->flags&(MP_IMGFLAG_DIRECT|MP_IMGFLAG_DRAW_CALLBACK))){
 197     // blit frame:
 198 //    if(mpi->flags&MP_IMGFLAG_PLANAR)
 199     if(vf->default_caps&VFCAP_ACCEPT_STRIDE)
 200         vo_draw_slice(video_out, mpi->planes,mpi->stride,mpi->w,mpi->h,mpi->x,mpi->y);
 201     else
 202         vo_draw_frame(video_out, mpi->planes);
 203   }
 204   return 1;
 205 }
 206
 207 static void start_slice(struct vf_instance *vf,
 208                        mp_image_t *mpi) {
 209     if(!video_out->config_ok) return; // vo not configured?
 210     vo_control(video_out, VOCTRL_START_SLICE,mpi);
 211 }
 212
 213 static void draw_slice(struct vf_instance *vf,
 214         unsigned char** src, int* stride, int w,int h, int x, int y){
 215     if(!video_out->config_ok) return; // vo not configured?
 216     vo_draw_slice(video_out, src,stride,w,h,x,y);
 217 }
 218
 219 static void uninit(struct vf_instance *vf)
 220 {
 221     if (vf->priv) {
 222         /* Allow VO (which may live on to work with another instance of vf_vo)
 223          * to get rid of numbered-mpi references that will now be invalid. */
 224         vo_seek_reset(video_out);
 225 #ifdef CONFIG_ASS
 226         if (vf->priv->ass_priv)
 227             ass_renderer_done(vf->priv->ass_priv);
 228 #endif
 229         free(vf->priv);
 230     }
 231 }
 232 //===========================================================================//
 233
 234 static int vf_open(vf_instance_t *vf, char *args){
 235     vf->config=config;
 236     vf->control=control;
 237     vf->query_format=query_format;
 238     vf->get_image=get_image;
 239     vf->put_image=put_image;
 240     vf->draw_slice=draw_slice;
 241     vf->start_slice=start_slice;
 242     vf->uninit=uninit;
 243     vf->priv=calloc(1, sizeof(struct vf_priv_s));
 244     vf->priv->vo = (struct vo *)args;
 245     if(!video_out) return 0; // no vo ?
 246     return 1;
 247 }
 248
 249 const vf_info_t vf_info_vo = {
 250     "libvo wrapper",
 251     "vo",
 252     "A'rpi",
 253     "for internal use",
 254     vf_open,
 255     NULL
 256 };
 257
 258 //===========================================================================//