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