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 #ifdef HAVE_CONFIG_H
  25 # include "config.h"
  26 #endif
  27 #include "mediacontrol_internal.h"
  28 #include "libvlc_internal.h"
  29 #include "media_player_internal.h"
  30
  31 #include <vlc/mediacontrol.h>
  32 #include <vlc/libvlc.h>
  33
  34 #include <vlc_vout.h>
  35 #include <vlc_input.h>
  36 #include <vlc_osd.h>
  37 #include <vlc_block.h>
  38
  39 #include <stdlib.h>                                      /* malloc(), free() */
  40 #include <string.h>
  41
  42 #include <stdio.h>
  43
  44 #ifdef HAVE_UNISTD_H
  45 #    include <unistd.h>
  46 #endif
  47 #ifdef HAVE_SYS_TYPES_H
  48 #    include <sys/types.h>
  49 #endif
  50
  51 mediacontrol_RGBPicture *
  52 mediacontrol_snapshot( mediacontrol_Instance *self,
  53                        const mediacontrol_Position * a_position,
  54                        mediacontrol_Exception *exception )
  55 {
  56     (void)a_position;
  57     vout_thread_t* p_vout;
  58     input_thread_t *p_input;
  59     mediacontrol_RGBPicture *p_pic;
  60     libvlc_exception_t ex;
  61
  62     libvlc_exception_init( &ex );
  63     mediacontrol_exception_init( exception );
  64
  65     p_input = libvlc_get_input_thread( self->p_media_player, &ex );
  66     if( ! p_input )
  67     {
  68         RAISE_NULL( mediacontrol_InternalException, "No input" );
  69     }
  70
  71     p_vout = input_GetVout( p_input );
  72     vlc_object_release( p_input );
  73     if( ! p_vout )
  74     {
  75         RAISE_NULL( mediacontrol_InternalException, "No video output" );
  76     }
  77
  78     block_t *p_image;
  79     video_format_t fmt;
  80
  81     if( vout_GetSnapshot( p_vout, &p_image, NULL, &fmt, "png", 500*1000 ) )
  82     {
  83         vlc_object_release( p_vout );
  84         RAISE_NULL( mediacontrol_InternalException, "Snapshot exception" );
  85         return NULL;
  86     }
  87
  88     /* */
  89     char *p_data = malloc( p_image->i_buffer );
  90     if( p_data )
  91     {
  92         memcpy( p_data, p_image->p_buffer, p_image->i_buffer );
  93         p_pic = private_mediacontrol_createRGBPicture( fmt.i_width,
  94                                                        fmt.i_height,
  95                                                        fmt.i_chroma,
  96                                                        p_image->i_pts,
  97                                                        p_data,
  98                                                        p_image->i_buffer );
  99     }
 100     else
 101     {
 102         p_pic = NULL;
 103     }
 104     block_Release( p_image );
 105
 106     if( !p_pic )
 107         RAISE_NULL( mediacontrol_InternalException, "Out of memory" );
 108
 109     vlc_object_release( p_vout );
 110     return p_pic;
 111 }
 112
 113 static
 114 int mediacontrol_showtext( vout_thread_t *p_vout, int i_channel,
 115                            const char *psz_string, text_style_t *p_style,
 116                            int i_flags, int i_hmargin, int i_vmargin,
 117                            mtime_t i_start, mtime_t i_stop )
 118 {
 119     return osd_ShowTextAbsolute( vout_GetSpu( p_vout ), i_channel,
 120                                  psz_string, p_style,
 121                                  i_flags, i_hmargin, i_vmargin,
 122                                  i_start, i_stop );
 123 }
 124
 125
 126 void
 127 mediacontrol_display_text( mediacontrol_Instance *self,
 128                            const char * message,
 129                            const mediacontrol_Position * begin,
 130                            const mediacontrol_Position * end,
 131                            mediacontrol_Exception *exception )
 132 {
 133     vout_thread_t *p_vout = NULL;
 134     input_thread_t *p_input;
 135     libvlc_exception_t ex;
 136
 137     libvlc_exception_init( &ex );
 138     mediacontrol_exception_init( exception );
 139
 140     if( !message )
 141     {
 142         RAISE_VOID( mediacontrol_InternalException, "Empty text" );
 143     }
 144
 145     p_input = libvlc_get_input_thread( self->p_media_player, &ex );
 146     if( ! p_input )
 147     {
 148         RAISE_VOID( mediacontrol_InternalException, "No input" );
 149     }
 150     p_vout = input_GetVout( p_input );
 151     /*FIXME: take care of the next fixme that can use p_input */
 152     vlc_object_release( p_input );
 153
 154     if( ! p_vout )
 155     {
 156         RAISE_VOID( mediacontrol_InternalException, "No video output" );
 157     }
 158
 159     if( begin->origin == mediacontrol_RelativePosition &&
 160         begin->value == 0 &&
 161         end->origin == mediacontrol_RelativePosition )
 162     {
 163         mtime_t i_duration = 0;
 164         mtime_t i_now = mdate();
 165
 166         i_duration = 1000 * private_mediacontrol_unit_convert(
 167                                                               self->p_media_player,
 168                                                               end->key,
 169                                                               mediacontrol_MediaTime,
 170                                                               end->value );
 171
 172         mediacontrol_showtext( p_vout, DEFAULT_CHAN, message, NULL,
 173                                OSD_ALIGN_BOTTOM | OSD_ALIGN_LEFT, 0, 0,
 174                                i_now, i_now + i_duration );
 175     }
 176     else
 177     {
 178         mtime_t i_debut, i_fin, i_now;
 179
 180         /* FIXME */
 181         /* i_now = input_ClockGetTS( p_input, NULL, 0 ); */
 182         i_now = mdate();
 183
 184         i_debut = private_mediacontrol_position2microsecond( self->p_media_player,
 185                                             ( mediacontrol_Position* ) begin );
 186         i_debut += i_now;
 187
 188         i_fin = private_mediacontrol_position2microsecond( self->p_media_player,
 189                                           ( mediacontrol_Position * ) end );
 190         i_fin += i_now;
 191
 192         vout_ShowTextAbsolute( p_vout, DEFAULT_CHAN, message, NULL,
 193                                OSD_ALIGN_BOTTOM | OSD_ALIGN_LEFT, 0, 0,
 194                                i_debut, i_fin );
 195     }
 196
 197     vlc_object_release( p_vout );
 198 }
 199
 200 unsigned short
 201 mediacontrol_sound_get_volume( mediacontrol_Instance *self,
 202                                mediacontrol_Exception *exception )
 203 {
 204     int i_ret = 0;
 205
 206     mediacontrol_exception_init( exception );
 207
 208     i_ret = libvlc_audio_get_volume( self->p_instance );
 209     /* FIXME: Normalize in [0..100] */
 210     return (unsigned short)i_ret;
 211 }
 212
 213 void
 214 mediacontrol_sound_set_volume( mediacontrol_Instance *self,
 215                                const unsigned short volume,
 216                                mediacontrol_Exception *exception )
 217 {
 218     /* FIXME: Normalize in [0..100] */
 219     libvlc_exception_t ex;
 220
 221     mediacontrol_exception_init( exception );
 222     libvlc_exception_init( &ex );
 223
 224     libvlc_audio_set_volume( self->p_instance, volume, &ex );
 225     HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
 226 }
 227
 228 int mediacontrol_set_visual( mediacontrol_Instance *self,
 229                                     WINDOWHANDLE visual_id,
 230                                     mediacontrol_Exception *exception )
 231 {
 232     libvlc_exception_t ex;
 233
 234     mediacontrol_exception_init( exception );
 235     libvlc_exception_init( &ex );
 236 #ifdef WIN32
 237     libvlc_media_player_set_hwnd( self->p_media_player, visual_id, &ex );
 238 #else
 239     libvlc_media_player_set_xwindow( self->p_media_player, visual_id, &ex );
 240 #endif
 241     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 242     return true;
 243 }
 244
 245 int
 246 mediacontrol_get_rate( mediacontrol_Instance *self,
 247                mediacontrol_Exception *exception )
 248 {
 249     libvlc_exception_t ex;
 250     int i_ret;
 251
 252     mediacontrol_exception_init( exception );
 253     libvlc_exception_init( &ex );
 254
 255     i_ret = libvlc_media_player_get_rate( self->p_media_player, &ex );
 256     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 257
 258     return i_ret / 10;
 259 }
 260
 261 void
 262 mediacontrol_set_rate( mediacontrol_Instance *self,
 263                const int rate,
 264                mediacontrol_Exception *exception )
 265 {
 266     libvlc_exception_t ex;
 267
 268     mediacontrol_exception_init( exception );
 269     libvlc_exception_init( &ex );
 270
 271     libvlc_media_player_set_rate( self->p_media_player, rate * 10, &ex );
 272     HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
 273 }
 274
 275 int
 276 mediacontrol_get_fullscreen( mediacontrol_Instance *self,
 277                  mediacontrol_Exception *exception )
 278 {
 279     libvlc_exception_t ex;
 280     int i_ret;
 281
 282     mediacontrol_exception_init( exception );
 283     libvlc_exception_init( &ex );
 284
 285     i_ret = libvlc_get_fullscreen( self->p_media_player, &ex );
 286     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 287
 288     return i_ret;
 289 }
 290
 291 void
 292 mediacontrol_set_fullscreen( mediacontrol_Instance *self,
 293                  const int b_fullscreen,
 294                  mediacontrol_Exception *exception )
 295 {
 296     libvlc_exception_t ex;
 297
 298     mediacontrol_exception_init( exception );
 299     libvlc_exception_init( &ex );
 300
 301     libvlc_set_fullscreen( self->p_media_player, b_fullscreen, &ex );
 302     HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
 303 }