libmpcodecs/vf_vo.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <stdbool.h>
   5
   6 #include "config.h"
   7 #include "mp_msg.h"
   8
   9 #include "mp_image.h"
  10 #include "vf.h"
  11
  12 #include "libvo/video_out.h"
  13
  14 #ifdef CONFIG_ASS
  15 #include "ass_mp.h"
  16 extern ASS_Track *ass_track;
  17 #endif
  18
  19 //===========================================================================//
  20
  21 extern int sub_visibility;
  22 extern float sub_delay;
  23
  24 struct vf_priv_s {
  25     struct vo *vo;
  26 #ifdef CONFIG_ASS
  27     ASS_Renderer *ass_priv;
  28     int prev_visibility;
  29     double scale_ratio;
  30 #endif
  31 };
  32 #define video_out (vf->priv->vo)
  33
  34 static int query_format(struct vf_instance* vf, unsigned int fmt); /* forward declaration */
  35 static void draw_slice(struct vf_instance *vf, unsigned char **src, int *stride, int w,int h, int x, int y);
  36
  37 static int config(struct vf_instance* vf,
  38         int width, int height, int d_width, int d_height,
  39         unsigned int flags, unsigned int outfmt){
  40
  41     if ((width <= 0) || (height <= 0) || (d_width <= 0) || (d_height <= 0))
  42     {
  43         mp_msg(MSGT_CPLAYER, MSGL_ERR, "VO: invalid dimensions!\n");
  44         return 0;
  45     }
  46
  47     const vo_info_t *info = video_out->driver->info;
  48     mp_msg(MSGT_CPLAYER,MSGL_INFO,"VO: [%s] %dx%d => %dx%d %s %s%s%s%s\n",info->short_name,
  49          width, height,
  50          d_width, d_height,
  51          vo_format_name(outfmt),
  52          (flags&VOFLAG_FULLSCREEN)?" [fs]":"",
  53          (flags&VOFLAG_MODESWITCHING)?" [vm]":"",
  54          (flags&VOFLAG_SWSCALE)?" [zoom]":"",
  55          (flags&VOFLAG_FLIPPING)?" [flip]":"");
  56     mp_msg(MSGT_CPLAYER,MSGL_V,"VO: Description: %s\n",info->name);
  57     mp_msg(MSGT_CPLAYER,MSGL_V,"VO: Author: %s\n", info->author);
  58     if(info->comment && strlen(info->comment) > 0)
  59         mp_msg(MSGT_CPLAYER,MSGL_V,"VO: Comment: %s\n", info->comment);
  60
  61     // save vo's stride capability for the wanted colorspace:
  62     vf->default_caps=query_format(vf,outfmt);
  63     vf->draw_slice = (vf->default_caps & VOCAP_NOSLICES) ? NULL : draw_slice;
  64
  65     if (vo_config(video_out, width, height, d_width, d_height, flags, "MPlayer", outfmt))
  66         return 0;
  67
  68 #ifdef CONFIG_ASS
  69     vf->priv->scale_ratio = (double) d_width / d_height * height / width;
  70
  71     if (vf->priv->ass_priv)
  72         ass_configure(vf->priv->ass_priv, width, height, !!(vf->default_caps & VFCAP_EOSD_UNSCALED));
  73 #endif
  74
  75     return 1;
  76 }
  77
  78 static int control(struct vf_instance* vf, int request, void* data)
  79 {
  80     switch(request){
  81     case VFCTRL_GET_DEINTERLACE:
  82     {
  83         if(!video_out) return CONTROL_FALSE; // vo not configured?
  84         return vo_control(video_out, VOCTRL_GET_DEINTERLACE, data) == VO_TRUE;
  85     }
  86     case VFCTRL_SET_DEINTERLACE:
  87     {
  88         if(!video_out) return CONTROL_FALSE; // vo not configured?
  89         return vo_control(video_out, VOCTRL_SET_DEINTERLACE, data) == VO_TRUE;
  90     }
  91     case VFCTRL_GET_YUV_COLORSPACE:
  92         return vo_control(video_out, VOCTRL_GET_YUV_COLORSPACE, data) == true;
  93     case VFCTRL_SET_YUV_COLORSPACE:
  94         return vo_control(video_out, VOCTRL_SET_YUV_COLORSPACE, data) == true;
  95     case VFCTRL_DRAW_OSD:
  96         if(!video_out->config_ok) return CONTROL_FALSE; // vo not configured?
  97         vo_draw_osd(video_out, data);
  98         return CONTROL_TRUE;
  99     case VFCTRL_REDRAW_OSD:
 100         return vo_control(video_out, VOCTRL_REDRAW_OSD, data) == true;
 101     case VFCTRL_SET_EQUALIZER:
 102     {
 103         vf_equalizer_t *eq=data;
 104         if(!video_out->config_ok) return CONTROL_FALSE; // vo not configured?
 105         struct voctrl_set_equalizer_args param = {eq->item, eq->value};
 106         return vo_control(video_out, VOCTRL_SET_EQUALIZER, &param) == VO_TRUE;
 107     }
 108     case VFCTRL_GET_EQUALIZER:
 109     {
 110         vf_equalizer_t *eq=data;
 111         if(!video_out->config_ok) return CONTROL_FALSE; // vo not configured?
 112         struct voctrl_get_equalizer_args param = {eq->item, &eq->value};
 113         return vo_control(video_out, VOCTRL_GET_EQUALIZER, &param) == VO_TRUE;
 114     }
 115 #ifdef CONFIG_ASS
 116     case VFCTRL_INIT_EOSD:
 117     {
 118         vf->priv->ass_priv = ass_renderer_init((ASS_Library*)data);
 119         if (!vf->priv->ass_priv) return CONTROL_FALSE;
 120         ass_configure_fonts(vf->priv->ass_priv);
 121         vf->priv->prev_visibility = 0;
 122         return CONTROL_TRUE;
 123     }
 124     case VFCTRL_DRAW_EOSD:
 125     {
 126         mp_eosd_images_t images = {NULL, 2};
 127         double pts = video_out->next_pts;
 128         if (!video_out->config_ok || !vf->priv->ass_priv) return CONTROL_FALSE;
 129         if (sub_visibility && vf->priv->ass_priv && ass_track && (pts != MP_NOPTS_VALUE)) {
 130             mp_eosd_res_t res;
 131             memset(&res, 0, sizeof(res));
 132             if (vo_control(video_out, VOCTRL_GET_EOSD_RES, &res) == VO_TRUE) {
 133                 ass_set_frame_size(vf->priv->ass_priv, res.w, res.h);
 134                 ass_set_margins(vf->priv->ass_priv, res.mt, res.mb, res.ml, res.mr);
 135                 ass_set_aspect_ratio(vf->priv->ass_priv, vf->priv->scale_ratio, 1);
 136             }
 137
 138             images.imgs = ass_mp_render_frame(vf->priv->ass_priv, ass_track, (pts+sub_delay) * 1000 + .5, &images.changed);
 139             if (!vf->priv->prev_visibility)
 140                 images.changed = 2;
 141             vf->priv->prev_visibility = 1;
 142         } else
 143             vf->priv->prev_visibility = 0;
 144         vf->priv->prev_visibility = sub_visibility;
 145         return vo_control(video_out, VOCTRL_DRAW_EOSD, &images) == VO_TRUE;
 146     }
 147 #endif
 148     }
 149     return CONTROL_UNKNOWN;
 150 }
 151
 152 static int query_format(struct vf_instance* vf, unsigned int fmt){
 153     int flags = vo_control(video_out, VOCTRL_QUERY_FORMAT, &fmt);
 154     // draw_slice() accepts stride, draw_frame() doesn't:
 155     if(flags)
 156         if(fmt==IMGFMT_YV12 || fmt==IMGFMT_I420 || fmt==IMGFMT_IYUV)
 157             flags|=VFCAP_ACCEPT_STRIDE;
 158     return flags;
 159 }
 160
 161 static void get_image(struct vf_instance* vf,
 162         mp_image_t *mpi){
 163     if (!video_out->config_ok)
 164         return;
 165     // GET_IMAGE is required for hardware-accelerated formats
 166     if(vo_directrendering ||
 167        IMGFMT_IS_XVMC(mpi->imgfmt) || IMGFMT_IS_VDPAU(mpi->imgfmt))
 168         vo_control(video_out, VOCTRL_GET_IMAGE, mpi);
 169 }
 170
 171 static int put_image(struct vf_instance* vf,
 172         mp_image_t *mpi, double pts){
 173   if(!video_out->config_ok) return 0; // vo not configured?
 174   // first check, maybe the vo/vf plugin implements draw_image using mpi:
 175   if (vo_draw_image(video_out, mpi, pts) >= 0)
 176       return 1;
 177   // nope, fallback to old draw_frame/draw_slice:
 178   if(!(mpi->flags&(MP_IMGFLAG_DIRECT|MP_IMGFLAG_DRAW_CALLBACK))){
 179     // blit frame:
 180 //    if(mpi->flags&MP_IMGFLAG_PLANAR)
 181     if(vf->default_caps&VFCAP_ACCEPT_STRIDE)
 182         vo_draw_slice(video_out, mpi->planes,mpi->stride,mpi->w,mpi->h,mpi->x,mpi->y);
 183     else
 184         vo_draw_frame(video_out, mpi->planes);
 185   }
 186   return 1;
 187 }
 188
 189 static void start_slice(struct vf_instance* vf,
 190                        mp_image_t *mpi) {
 191     if(!video_out->config_ok) return; // vo not configured?
 192     vo_control(video_out, VOCTRL_START_SLICE,mpi);
 193 }
 194
 195 static void draw_slice(struct vf_instance* vf,
 196         unsigned char** src, int* stride, int w,int h, int x, int y){
 197     if(!video_out->config_ok) return; // vo not configured?
 198     vo_draw_slice(video_out, src,stride,w,h,x,y);
 199 }
 200
 201 static void uninit(struct vf_instance* vf)
 202 {
 203     if (vf->priv) {
 204         /* Allow VO (which may live on to work with another instance of vf_vo)
 205          * to get rid of numbered-mpi references that will now be invalid. */
 206         vo_seek_reset(video_out);
 207 #ifdef CONFIG_ASS
 208         if (vf->priv->ass_priv)
 209             ass_renderer_done(vf->priv->ass_priv);
 210 #endif
 211         free(vf->priv);
 212     }
 213 }
 214 //===========================================================================//
 215
 216 static int open(vf_instance_t *vf, char* args){
 217     vf->config=config;
 218     vf->control=control;
 219     vf->query_format=query_format;
 220     vf->get_image=get_image;
 221     vf->put_image=put_image;
 222     vf->draw_slice=draw_slice;
 223     vf->start_slice=start_slice;
 224     vf->uninit=uninit;
 225     vf->priv=calloc(1, sizeof(struct vf_priv_s));
 226     vf->priv->vo = (struct vo *)args;
 227     if(!video_out) return 0; // no vo ?
 228     return 1;
 229 }
 230
 231 const vf_info_t vf_info_vo = {
 232     "libvo wrapper",
 233     "vo",
 234     "A'rpi",
 235     "for internal use",
 236     open,
 237     NULL
 238 };
 239
 240 //===========================================================================//