git.sesse.net Git - vlc/blob - src/control/mediacontrol_audio_video.c

   1 /*****************************************************************************
   2  * audio_video.c: Audio/Video management : volume, snapshot, OSD
   3  *****************************************************************************
   4  * Copyright (C) 2005 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Olivier Aubert <olivier.aubert@liris.univ-lyon1.fr>
   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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 #include <mediacontrol_internal.h>
  25
  26 #include <vlc/mediacontrol.h>
  27 #include <vlc/libvlc.h>
  28
  29 #include <vlc/intf.h>
  30 #include <vlc/vout.h>
  31 #include <vlc/aout.h>
  32 #include <vlc_demux.h>
  33
  34 #include <vlc_osd.h>
  35
  36 #include <snapshot.h>
  37
  38 #include <stdlib.h>                                      /* malloc(), free() */
  39 #include <string.h>
  40
  41 #include <errno.h>                                                 /* ENOMEM */
  42 #include <stdio.h>
  43 #include <ctype.h>
  44
  45 #ifdef HAVE_UNISTD_H
  46 #    include <unistd.h>
  47 #endif
  48 #ifdef HAVE_SYS_TIME_H
  49 #    include <sys/time.h>
  50 #endif
  51 #ifdef HAVE_SYS_TYPES_H
  52 #    include <sys/types.h>
  53 #endif
  54
  55 mediacontrol_RGBPicture *
  56 mediacontrol_snapshot( mediacontrol_Instance *self,
  57                        const mediacontrol_Position * a_position,
  58                        mediacontrol_Exception *exception )
  59 {
  60     vlc_object_t* p_cache;
  61     vout_thread_t* p_vout;
  62     mediacontrol_RGBPicture *p_pic = NULL;
  63     char path[256];
  64     snapshot_t *p_snapshot;
  65
  66     exception=mediacontrol_exception_init( exception );
  67
  68     p_vout = vlc_object_find( self->p_playlist, VLC_OBJECT_VOUT, FIND_CHILD );
  69     if( ! p_vout )
  70     {
  71         RAISE_NULL( mediacontrol_InternalException, "No video output" );
  72     }
  73     p_cache = vlc_object_create( self->p_playlist, VLC_OBJECT_GENERIC );
  74     if( p_cache == NULL )
  75     {
  76         vlc_object_release( p_vout );
  77         RAISE_NULL( mediacontrol_InternalException, "Out of memory" );
  78     }
  79     snprintf( path, 255, "object:%d", p_cache->i_object_id );
  80     var_SetString( p_vout, "snapshot-path", path );
  81     var_SetString( p_vout, "snapshot-format", "png" );
  82
  83     vlc_mutex_lock( &p_cache->object_lock );
  84     vout_Control( p_vout, VOUT_SNAPSHOT );
  85     vlc_cond_wait( &p_cache->object_wait, &p_cache->object_lock );
  86     vlc_object_release( p_vout );
  87
  88     p_snapshot = ( snapshot_t* ) p_cache->p_private;
  89     vlc_object_destroy( p_cache );
  90
  91     if( p_snapshot )
  92     {
  93         p_pic = _mediacontrol_createRGBPicture( p_snapshot->i_width,
  94                                                 p_snapshot->i_height,
  95                                                 VLC_FOURCC( 'p','n','g',' ' ),
  96                                                 p_snapshot->date,
  97                                                 p_snapshot->p_data,
  98                                                 p_snapshot->i_datasize );
  99         if( !p_pic )
 100         {
 101             free( p_snapshot->p_data );
 102             free( p_snapshot );
 103             RAISE_NULL( mediacontrol_InternalException, "Out of memory" );
 104         }
 105     }
 106     else
 107     {
 108         RAISE_NULL( mediacontrol_InternalException, "Snapshot exception" );
 109     }
 110     return p_pic;
 111 }
 112
 113 mediacontrol_RGBPicture **
 114 mediacontrol_all_snapshots( mediacontrol_Instance *self,
 115                             mediacontrol_Exception *exception )
 116 {
 117     exception=mediacontrol_exception_init( exception );
 118
 119     RAISE_NULL( mediacontrol_InternalException, "unsupported method" );
 120 }
 121
 122 int mediacontrol_showtext( vout_thread_t *p_vout, int i_channel,
 123                            char *psz_string, text_style_t *p_style,
 124                            int i_flags, int i_hmargin, int i_vmargin,
 125                            mtime_t i_start, mtime_t i_stop )
 126 {
 127     subpicture_t *p_spu;
 128     video_format_t fmt;
 129
 130     if( !psz_string ) return VLC_EGENERIC;
 131
 132     p_spu = spu_CreateSubpicture( p_vout->p_spu );
 133     if( !p_spu ) return VLC_EGENERIC;
 134
 135     /* Create a new subpicture region */
 136     memset( &fmt, 0, sizeof(video_format_t) );
 137     fmt.i_chroma = VLC_FOURCC('T','E','X','T');
 138     fmt.i_aspect = 0;
 139     fmt.i_width = fmt.i_height = 0;
 140     fmt.i_x_offset = fmt.i_y_offset = 0;
 141     p_spu->p_region = p_spu->pf_create_region( VLC_OBJECT(p_vout), &fmt );
 142     if( !p_spu->p_region )
 143     {
 144         msg_Err( p_vout, "cannot allocate SPU region" );
 145         spu_DestroySubpicture( p_vout->p_spu, p_spu );
 146         return VLC_EGENERIC;
 147     }
 148
 149     p_spu->p_region->psz_text = strdup( psz_string );
 150     p_spu->i_start = i_start;
 151     p_spu->i_stop = i_stop;
 152     p_spu->b_ephemer = VLC_FALSE;
 153     p_spu->b_absolute = VLC_FALSE;
 154
 155     p_spu->i_x = i_hmargin;
 156     p_spu->i_y = i_vmargin;
 157     p_spu->i_flags = i_flags;
 158     p_spu->i_channel = i_channel;
 159
 160     spu_DisplaySubpicture( p_vout->p_spu, p_spu );
 161
 162     return VLC_SUCCESS;
 163 }
 164
 165
 166 void
 167 mediacontrol_display_text( mediacontrol_Instance *self,
 168                            const char * message,
 169                            const mediacontrol_Position * begin,
 170                            const mediacontrol_Position * end,
 171                            mediacontrol_Exception *exception )
 172 {
 173     input_thread_t *p_input = NULL;
 174     vout_thread_t *p_vout = NULL;
 175     char* psz_message;
 176
 177     psz_message = strdup( message );
 178     if( !psz_message )
 179     {
 180         RAISE_VOID( mediacontrol_InternalException, "no more memory" );
 181     }
 182
 183     p_vout = vlc_object_find( self->p_playlist, VLC_OBJECT_VOUT, FIND_CHILD );
 184     if( ! p_vout )
 185     {
 186         RAISE_VOID( mediacontrol_InternalException, "no video output" );
 187     }
 188
 189     if( begin->origin == mediacontrol_RelativePosition &&
 190         begin->value == 0 &&
 191         end->origin == mediacontrol_RelativePosition )
 192     {
 193         mtime_t i_duration = 0;
 194         mtime_t i_now = mdate();
 195
 196         i_duration = 1000 * mediacontrol_unit_convert(
 197                                                 self->p_playlist->p_input,
 198                                                 end->key,
 199                                                 mediacontrol_MediaTime,
 200                                                 end->value );
 201
 202         mediacontrol_showtext( p_vout, DEFAULT_CHAN, psz_message, NULL,
 203                                OSD_ALIGN_BOTTOM | OSD_ALIGN_LEFT, 0, 0,
 204                                i_now, i_now + i_duration );
 205     }
 206     else
 207     {
 208         mtime_t i_debut, i_fin, i_now;
 209
 210         p_input = self->p_playlist->p_input;
 211         if( ! p_input )
 212         {
 213             vlc_object_release( p_vout );
 214             RAISE_VOID( mediacontrol_InternalException, "No input" );
 215         }
 216
 217         /* FIXME */
 218         /* i_now = input_ClockGetTS( p_input, NULL, 0 ); */
 219         i_now = mdate();
 220
 221         i_debut = mediacontrol_position2microsecond( p_input,
 222                                             ( mediacontrol_Position* ) begin );
 223         i_debut += i_now;
 224
 225         i_fin = mediacontrol_position2microsecond( p_input,
 226                                           ( mediacontrol_Position * ) end );
 227         i_fin += i_now;
 228
 229         vout_ShowTextAbsolute( p_vout, DEFAULT_CHAN, psz_message, NULL,
 230                                OSD_ALIGN_BOTTOM | OSD_ALIGN_LEFT, 0, 0,
 231                                i_debut, i_fin );
 232     }
 233
 234     vlc_object_release( p_vout );
 235 }
 236
 237 unsigned short
 238 mediacontrol_sound_get_volume( mediacontrol_Instance *self,
 239                                mediacontrol_Exception *exception )
 240 {
 241     libvlc_exception_t ex;
 242     int i_ret = 0;
 243
 244     mediacontrol_exception_init( exception );
 245     libvlc_exception_init( &ex );
 246
 247     i_ret = libvlc_audio_get_volume( self->p_instance, &ex );
 248     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 249     /* FIXME: Normalize in [0..100] */
 250     return (unsigned short)i_ret;
 251 }
 252
 253 void
 254 mediacontrol_sound_set_volume( mediacontrol_Instance *self,
 255                                const unsigned short volume,
 256                                mediacontrol_Exception *exception )
 257 {
 258     /* FIXME: Normalize in [0..100] */
 259     libvlc_exception_t ex;
 260
 261     mediacontrol_exception_init( exception );
 262     libvlc_exception_init( &ex );
 263
 264     libvlc_audio_set_volume( self->p_instance, volume, &ex );
 265     HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
 266 }
 267
 268 vlc_bool_t mediacontrol_set_visual( mediacontrol_Instance *self,
 269                                     WINDOWHANDLE visual_id,
 270                                     mediacontrol_Exception *exception )
 271 {
 272     libvlc_exception_t ex;
 273
 274     mediacontrol_exception_init( exception );
 275     libvlc_exception_init( &ex );
 276
 277     libvlc_video_set_parent( self->p_instance, visual_id, &ex );
 278     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 279     return VLC_TRUE;
 280 }
 281
 282 int
 283 mediacontrol_get_rate( mediacontrol_Instance *self,
 284                        mediacontrol_Exception *exception )
 285 {
 286     libvlc_exception_t ex;
 287     libvlc_input_t* p_input;
 288     int i_ret;
 289
 290     mediacontrol_exception_init( exception );
 291     libvlc_exception_init( &ex );
 292
 293     p_input = libvlc_playlist_get_input( self->p_instance, &ex );
 294     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 295
 296     i_ret = libvlc_input_get_rate( p_input, &ex );
 297     libvlc_input_free( p_input );
 298     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 299
 300     return i_ret / 10;
 301 }
 302
 303 void
 304 mediacontrol_set_rate( mediacontrol_Instance *self,
 305                        const int rate,
 306                        mediacontrol_Exception *exception )
 307 {
 308     libvlc_exception_t ex;
 309     libvlc_input_t* p_input;
 310
 311     mediacontrol_exception_init( exception );
 312     libvlc_exception_init( &ex );
 313
 314     p_input = libvlc_playlist_get_input( self->p_instance, &ex );
 315     HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
 316
 317     libvlc_input_set_rate( p_input, rate * 10, &ex );
 318     libvlc_input_free( p_input );
 319     HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
 320 }
 321
 322 int
 323 mediacontrol_get_fullscreen( mediacontrol_Instance *self,
 324                              mediacontrol_Exception *exception )
 325 {
 326     libvlc_exception_t ex;
 327     libvlc_input_t* p_input;
 328     int i_ret;
 329
 330     mediacontrol_exception_init( exception );
 331     libvlc_exception_init( &ex );
 332
 333     p_input = libvlc_playlist_get_input( self->p_instance, &ex );
 334     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 335
 336     i_ret = libvlc_get_fullscreen( p_input, &ex );
 337     libvlc_input_free( p_input );
 338     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 339
 340     return i_ret;
 341 }
 342
 343 void
 344 mediacontrol_set_fullscreen( mediacontrol_Instance *self,
 345                              const int b_fullscreen,
 346                              mediacontrol_Exception *exception )
 347 {
 348     libvlc_exception_t ex;
 349     libvlc_input_t* p_input;
 350
 351     mediacontrol_exception_init( exception );
 352     libvlc_exception_init( &ex );
 353
 354     p_input = libvlc_playlist_get_input( self->p_instance, &ex );
 355     HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
 356
 357     libvlc_set_fullscreen( p_input, b_fullscreen, &ex );
 358     libvlc_input_free( p_input );
 359     HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
 360 }