git.sesse.net Git - vlc/blob - modules/video_output/picture.c

   1 /*****************************************************************************
   2  * picture.c:
   3  *****************************************************************************
   4  * Copyright (C) 1998-2001 VideoLAN
   5  * $Id: $
   6  *
   7  * Authors: Antoine Cellerier <dionoea@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 #include <errno.h>                                                 /* ENOMEM */
  28 #include <stdlib.h>                                                /* free() */
  29 #include <string.h>                                            /* strerror() */
  30
  31 #include <vlc/vlc.h>
  32 #include <vlc/intf.h>
  33 #include <vlc/vout.h>
  34 #include <vlc/aout.h>
  35
  36 #include <sys/types.h>
  37 #ifndef WIN32
  38 #   include <netinet/in.h>                            /* BSD: struct in_addr */
  39 #endif
  40
  41 /***********************************************************************
  42 *
  43 ***********************************************************************/
  44 struct vout_sys_t
  45 {
  46     int i_picture_pos; /* picture position in p_picture_vout */
  47 };
  48
  49 #include "picture.h"
  50
  51 /***********************************************************************
  52 * Local prototypes
  53 ***********************************************************************/
  54
  55 static int  Open    ( vlc_object_t * );
  56 static void Close   ( vlc_object_t * );
  57 static int  Init    ( vout_thread_t * );
  58 static void End     ( vout_thread_t * );
  59 static int  Manage  ( vout_thread_t * );
  60 static void Display ( vout_thread_t *, picture_t * );
  61
  62 /***********************************************************************
  63 * Module descriptor
  64 ***********************************************************************/
  65 vlc_module_begin();
  66     set_description(_("VLC Internal Picture video output") );
  67     set_capability( "video output", 70 );
  68     set_callbacks( Open, Close );
  69 vlc_module_end();
  70
  71 /***********************************************************************
  72 * Open : allocate video thread output method
  73 ***********************************************************************/
  74 static int Open ( vlc_object_t *p_this )
  75 {
  76     vout_thread_t *p_vout = (vout_thread_t *)p_this;
  77     libvlc_t *p_libvlc = p_vout->p_libvlc;
  78     struct picture_vout_t *p_picture_vout = NULL;
  79     vlc_value_t val;
  80
  81     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
  82     if( p_vout->p_sys == NULL )
  83     {
  84         msg_Err( p_vout, "out of memory" );
  85         return VLC_ENOMEM;
  86     }
  87
  88     if( var_Get( p_libvlc, "p_picture_vout", &val ) != VLC_SUCCESS ){
  89         msg_Err( p_vout, "p_picture_vout not found" );
  90         p_picture_vout = malloc( sizeof( struct picture_vout_t ) );
  91         if( p_vout->p_sys == NULL )
  92         {
  93             msg_Err( p_vout, "out of memory" );
  94             return VLC_ENOMEM;
  95         }
  96
  97         vlc_mutex_init( p_libvlc, &p_picture_vout->lock );
  98         vlc_mutex_lock( &p_picture_vout->lock );
  99         var_Create( p_libvlc, "p_picture_vout", VLC_VAR_ADDRESS );
 100         val.p_address = p_picture_vout;
 101         var_Set( p_libvlc, "p_picture_vout", val );
 102
 103         p_picture_vout->i_picture_num = 0;
 104         p_picture_vout->p_pic = NULL;
 105     } else {
 106         p_picture_vout = val.p_address;
 107         msg_Err( p_vout, "p_picture_vout found" );
 108         vlc_mutex_lock( &p_picture_vout->lock );
 109     }
 110
 111     p_vout->p_sys->i_picture_pos = p_picture_vout->i_picture_num;
 112
 113     p_picture_vout->p_pic = realloc( p_picture_vout->p_pic,
 114       (p_picture_vout->i_picture_num+1) * sizeof( struct picture_vout_e_t ) );
 115
 116     p_picture_vout->p_pic[p_picture_vout->i_picture_num].p_picture = NULL;
 117     p_picture_vout->p_pic[p_picture_vout->i_picture_num].i_status
 118       = PICTURE_VOUT_E_OCCUPIED;
 119     p_picture_vout->i_picture_num++;
 120
 121     vlc_mutex_unlock( &p_picture_vout->lock );
 122
 123     p_vout->pf_init = Init;
 124     p_vout->pf_end = End;
 125     p_vout->pf_manage = Manage;
 126     p_vout->pf_render = NULL;
 127     p_vout->pf_display = Display;
 128
 129     return VLC_SUCCESS;
 130 }
 131
 132
 133 /***********************************************************************
 134 * Init
 135 ***********************************************************************/
 136 static int Init( vout_thread_t *p_vout )
 137 {
 138
 139     picture_t *p_pic;
 140     int i_index;
 141
 142     I_OUTPUTPICTURES = 0;
 143
 144     p_vout->output.i_chroma = p_vout->render.i_chroma;
 145     p_vout->output.i_width  = p_vout->render.i_width;
 146     p_vout->output.i_height = p_vout->render.i_height;
 147     p_vout->output.i_aspect = p_vout->render.i_aspect;
 148
 149     while( VLC_TRUE )
 150     {
 151         p_pic = NULL;
 152
 153         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 154         {
 155             if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 156             {
 157                 p_pic = p_vout->p_picture + i_index;
 158                 break;
 159             }
 160         }
 161
 162         if( p_pic == NULL )
 163         {
 164             return VLC_SUCCESS;
 165         }
 166
 167         vout_AllocatePicture( VLC_OBJECT(p_vout), p_pic,
 168                               p_vout->output.i_chroma,
 169                               p_vout->output.i_width, p_vout->output.i_height,
 170                               p_vout->output.i_aspect );
 171
 172         if( p_pic->i_planes == 0 )
 173         {
 174             return VLC_EGENERIC;
 175         }
 176
 177         p_pic->i_status = DESTROYED_PICTURE;
 178         p_pic->i_type   = DIRECT_PICTURE;
 179
 180         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 181
 182         I_OUTPUTPICTURES++;
 183
 184         //return VLC_SUCCESS;
 185     }
 186
 187 }
 188
 189 /***********************************************************************
 190 * End
 191 ***********************************************************************/
 192 static void End( vout_thread_t *p_vout )
 193 {
 194     return;
 195 }
 196
 197 /***********************************************************************
 198 * Close
 199 ***********************************************************************/
 200 static void Close ( vlc_object_t *p_this )
 201 {
 202     vout_thread_t * p_vout = (vout_thread_t *)p_this;
 203
 204     libvlc_t *p_libvlc = p_vout->p_libvlc;
 205     struct picture_vout_t *p_picture_vout = NULL;
 206     vlc_value_t val;
 207     int i_flag=0, i;
 208
 209     msg_Dbg( p_vout, "Closing Picture Vout ...");
 210     var_Get( p_libvlc, "p_picture_vout", &val );
 211     p_picture_vout = val.p_address;
 212
 213     vlc_mutex_lock( &p_picture_vout->lock );
 214
 215     if( p_picture_vout->p_pic[p_vout->p_sys->i_picture_pos].p_picture )
 216     {
 217     /* FIXME */
 218         free( p_picture_vout->p_pic[p_vout->p_sys->i_picture_pos].p_picture );
 219     }
 220     p_picture_vout->p_pic[p_vout->p_sys->i_picture_pos].i_status
 221       = PICTURE_VOUT_E_AVAILABLE;
 222
 223     for( i = 0; i < p_picture_vout->i_picture_num; i ++)
 224     {
 225         if( p_picture_vout->p_pic[i].i_status == PICTURE_VOUT_E_OCCUPIED ) {
 226             i_flag = 1;
 227             break;
 228         }
 229     }
 230
 231     if( i_flag == 1 ){
 232         vlc_mutex_unlock( &p_picture_vout->lock );
 233         fprintf( stderr, "this wasn't the last picture\n");
 234     } else {
 235         free( p_picture_vout->p_pic );
 236         vlc_mutex_unlock( &p_picture_vout->lock );
 237         vlc_mutex_destroy( &p_picture_vout->lock );
 238         var_Destroy( p_libvlc, "p_picture_vout" );
 239         fprintf( stderr, "this was the last picture\n");
 240     }
 241
 242     free( p_vout->p_sys );
 243 }
 244
 245 /***********************************************************************
 246 * Manage
 247 ***********************************************************************/
 248 static int Manage( vout_thread_t *p_vout )
 249 {
 250     return VLC_SUCCESS;
 251 }
 252
 253 /***********************************************************************
 254 * Display
 255 ***********************************************************************/
 256 static void Display( vout_thread_t *p_vout, picture_t *p_pic )
 257 {
 258     libvlc_t *p_libvlc = p_vout->p_libvlc;
 259     vlc_value_t val;
 260     struct picture_vout_t *p_picture_vout;
 261
 262     var_Get( p_libvlc, "p_picture_vout", &val );
 263     p_picture_vout = val.p_address;
 264
 265     /*
 266     src : p_pic
 267     dest : p_picture_pout->p_pic[p_vout->p_sys.i_picture_pos]->p_picture
 268     */
 269
 270
 271     vlc_mutex_lock( &p_picture_vout->lock );
 272     if( p_picture_vout->p_pic[p_vout->p_sys->i_picture_pos].p_picture )
 273     {
 274       // FIXME !!!
 275       //nfprintf( stderr, "i_type : %i ( MEMORY_PICTURE == %i)\n", p_picture_vout->p_pic[p_vout->p_sys->i_picture_pos].p_picture->i_type, MEMORY_PICTURE );
 276       if( p_picture_vout->p_pic[p_vout->p_sys->i_picture_pos].p_picture->i_type  == 200 /* MEMORY_PICTURE*/)
 277       {
 278         free( p_picture_vout->p_pic[p_vout->p_sys->i_picture_pos]
 279                         .p_picture->p_data_orig );
 280       }
 281       free( p_picture_vout->p_pic[p_vout->p_sys->i_picture_pos].p_picture );
 282     }
 283
 284     p_picture_vout->p_pic[p_vout->p_sys->i_picture_pos].p_picture
 285              = (picture_t*)malloc( sizeof( picture_t )) ;
 286     vout_AllocatePicture( p_vout,
 287          p_picture_vout->p_pic[p_vout->p_sys->i_picture_pos].p_picture,
 288          p_pic->format.i_chroma,
 289          p_pic->format.i_width,
 290          p_pic->format.i_height,
 291          VOUT_ASPECT_FACTOR * p_pic->format.i_height / p_pic->format.i_width );
 292
 293     p_picture_vout->p_pic[p_vout->p_sys->i_picture_pos].p_picture->i_status = DESTROYED_PICTURE;
 294     p_picture_vout->p_pic[p_vout->p_sys->i_picture_pos].p_picture->i_type   = DIRECT_PICTURE;
 295
 296     vout_CopyPicture( p_vout,
 297         p_picture_vout->p_pic[p_vout->p_sys->i_picture_pos].p_picture,
 298         p_pic);
 299
 300     vlc_mutex_unlock( &p_picture_vout->lock );
 301 }