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
  44 #ifdef HAVE_UNISTD_H
  45 #    include <unistd.h>
  46 #endif
  47 #ifdef HAVE_SYS_TIME_H
  48 #    include <sys/time.h>
  49 #endif
  50 #ifdef HAVE_SYS_TYPES_H
  51 #    include <sys/types.h>
  52 #endif
  53
  54 mediacontrol_RGBPicture *
  55 mediacontrol_snapshot( mediacontrol_Instance *self,
  56                        const mediacontrol_Position * a_position,
  57                        mediacontrol_Exception *exception )
  58 {
  59     (void)a_position;
  60     vout_thread_t* p_vout;
  61     input_thread_t *p_input;
  62     mediacontrol_RGBPicture *p_pic;
  63     libvlc_exception_t ex;
  64
  65     libvlc_exception_init( &ex );
  66     mediacontrol_exception_init( exception );
  67
  68     p_input = libvlc_get_input_thread( self->p_media_player, &ex );
  69     if( ! p_input )
  70     {
  71         RAISE_NULL( mediacontrol_InternalException, "No input" );
  72     }
  73
  74     p_vout = input_GetVout( p_input );
  75     vlc_object_release( p_input );
  76     if( ! p_vout )
  77     {
  78         RAISE_NULL( mediacontrol_InternalException, "No video output" );
  79     }
  80
  81     block_t *p_image;
  82     video_format_t fmt;
  83
  84     if( vout_GetSnapshot( p_vout, &p_image, NULL, &fmt, "png", 500*1000 ) )
  85     {
  86         RAISE_NULL( mediacontrol_InternalException, "Snapshot exception" );
  87         return NULL;
  88     }
  89
  90     /* */
  91     char *p_data = malloc( p_image->i_buffer );
  92     if( p_data )
  93     {
  94         memcpy( p_data, p_image->p_buffer, p_image->i_buffer );
  95         p_pic = private_mediacontrol_createRGBPicture( fmt.i_width,
  96                                                        fmt.i_height,
  97                                                        fmt.i_chroma,
  98                                                        p_image->i_pts,
  99                                                        p_data,
 100                                                        p_image->i_buffer );
 101     }
 102     else
 103     {
 104         p_pic = NULL;
 105     }
 106     block_Release( p_image );
 107
 108     if( !p_pic )
 109         RAISE_NULL( mediacontrol_InternalException, "Out of memory" );
 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( p_vout->p_spu, 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     if( ! p_vout )
 152     {
 153         RAISE_VOID( mediacontrol_InternalException, "No video output" );
 154     }
 155
 156     if( begin->origin == mediacontrol_RelativePosition &&
 157         begin->value == 0 &&
 158         end->origin == mediacontrol_RelativePosition )
 159     {
 160         mtime_t i_duration = 0;
 161         mtime_t i_now = mdate();
 162
 163         i_duration = 1000 * private_mediacontrol_unit_convert(
 164                                                               self->p_media_player,
 165                                                               end->key,
 166                                                               mediacontrol_MediaTime,
 167                                                               end->value );
 168
 169         mediacontrol_showtext( p_vout, DEFAULT_CHAN, message, NULL,
 170                                OSD_ALIGN_BOTTOM | OSD_ALIGN_LEFT, 0, 0,
 171                                i_now, i_now + i_duration );
 172     }
 173     else
 174     {
 175         mtime_t i_debut, i_fin, i_now;
 176
 177         /* FIXME */
 178         /* i_now = input_ClockGetTS( p_input, NULL, 0 ); */
 179         i_now = mdate();
 180
 181         i_debut = private_mediacontrol_position2microsecond( self->p_media_player,
 182                                             ( mediacontrol_Position* ) begin );
 183         i_debut += i_now;
 184
 185         i_fin = private_mediacontrol_position2microsecond( self->p_media_player,
 186                                           ( mediacontrol_Position * ) end );
 187         i_fin += i_now;
 188
 189         vout_ShowTextAbsolute( p_vout, DEFAULT_CHAN, message, NULL,
 190                                OSD_ALIGN_BOTTOM | OSD_ALIGN_LEFT, 0, 0,
 191                                i_debut, i_fin );
 192     }
 193
 194     vlc_object_release( p_vout );
 195 }
 196
 197 unsigned short
 198 mediacontrol_sound_get_volume( mediacontrol_Instance *self,
 199                                mediacontrol_Exception *exception )
 200 {
 201     libvlc_exception_t ex;
 202     int i_ret = 0;
 203
 204     mediacontrol_exception_init( exception );
 205     libvlc_exception_init( &ex );
 206
 207     i_ret = libvlc_audio_get_volume( self->p_instance, &ex );
 208     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 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
 237     libvlc_media_player_set_drawable( self->p_media_player, (libvlc_drawable_t)visual_id, &ex );
 238     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 239     return true;
 240 }
 241
 242 int
 243 mediacontrol_get_rate( mediacontrol_Instance *self,
 244                mediacontrol_Exception *exception )
 245 {
 246     libvlc_exception_t ex;
 247     int i_ret;
 248
 249     mediacontrol_exception_init( exception );
 250     libvlc_exception_init( &ex );
 251
 252     i_ret = libvlc_media_player_get_rate( self->p_media_player, &ex );
 253     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 254
 255     return i_ret / 10;
 256 }
 257
 258 void
 259 mediacontrol_set_rate( mediacontrol_Instance *self,
 260                const int rate,
 261                mediacontrol_Exception *exception )
 262 {
 263     libvlc_exception_t ex;
 264
 265     mediacontrol_exception_init( exception );
 266     libvlc_exception_init( &ex );
 267
 268     libvlc_media_player_set_rate( self->p_media_player, rate * 10, &ex );
 269     HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
 270 }
 271
 272 int
 273 mediacontrol_get_fullscreen( mediacontrol_Instance *self,
 274                  mediacontrol_Exception *exception )
 275 {
 276     libvlc_exception_t ex;
 277     int i_ret;
 278
 279     mediacontrol_exception_init( exception );
 280     libvlc_exception_init( &ex );
 281
 282     i_ret = libvlc_get_fullscreen( self->p_media_player, &ex );
 283     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 284
 285     return i_ret;
 286 }
 287
 288 void
 289 mediacontrol_set_fullscreen( mediacontrol_Instance *self,
 290                  const int b_fullscreen,
 291                  mediacontrol_Exception *exception )
 292 {
 293     libvlc_exception_t ex;
 294
 295     mediacontrol_exception_init( exception );
 296     libvlc_exception_init( &ex );
 297
 298     libvlc_set_fullscreen( self->p_media_player, b_fullscreen, &ex );
 299     HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
 300 }