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_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         vlc_object_release( p_vout );
  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
 112     vlc_object_release( p_vout );
 113     return p_pic;
 114 }
 115
 116 static
 117 int mediacontrol_showtext( vout_thread_t *p_vout, int i_channel,
 118                            const char *psz_string, text_style_t *p_style,
 119                            int i_flags, int i_hmargin, int i_vmargin,
 120                            mtime_t i_start, mtime_t i_stop )
 121 {
 122     return osd_ShowTextAbsolute( vout_GetSpu( p_vout ), i_channel,
 123                                  psz_string, p_style,
 124                                  i_flags, i_hmargin, i_vmargin,
 125                                  i_start, i_stop );
 126 }
 127
 128
 129 void
 130 mediacontrol_display_text( mediacontrol_Instance *self,
 131                            const char * message,
 132                            const mediacontrol_Position * begin,
 133                            const mediacontrol_Position * end,
 134                            mediacontrol_Exception *exception )
 135 {
 136     vout_thread_t *p_vout = NULL;
 137     input_thread_t *p_input;
 138     libvlc_exception_t ex;
 139
 140     libvlc_exception_init( &ex );
 141     mediacontrol_exception_init( exception );
 142
 143     if( !message )
 144     {
 145         RAISE_VOID( mediacontrol_InternalException, "Empty text" );
 146     }
 147
 148     p_input = libvlc_get_input_thread( self->p_media_player, &ex );
 149     if( ! p_input )
 150     {
 151         RAISE_VOID( mediacontrol_InternalException, "No input" );
 152     }
 153     p_vout = input_GetVout( p_input );
 154     /*FIXME: take care of the next fixme that can use p_input */
 155     vlc_object_release( p_input );
 156
 157     if( ! p_vout )
 158     {
 159         RAISE_VOID( mediacontrol_InternalException, "No video output" );
 160     }
 161
 162     if( begin->origin == mediacontrol_RelativePosition &&
 163         begin->value == 0 &&
 164         end->origin == mediacontrol_RelativePosition )
 165     {
 166         mtime_t i_duration = 0;
 167         mtime_t i_now = mdate();
 168
 169         i_duration = 1000 * private_mediacontrol_unit_convert(
 170                                                               self->p_media_player,
 171                                                               end->key,
 172                                                               mediacontrol_MediaTime,
 173                                                               end->value );
 174
 175         mediacontrol_showtext( p_vout, DEFAULT_CHAN, message, NULL,
 176                                OSD_ALIGN_BOTTOM | OSD_ALIGN_LEFT, 0, 0,
 177                                i_now, i_now + i_duration );
 178     }
 179     else
 180     {
 181         mtime_t i_debut, i_fin, i_now;
 182
 183         /* FIXME */
 184         /* i_now = input_ClockGetTS( p_input, NULL, 0 ); */
 185         i_now = mdate();
 186
 187         i_debut = private_mediacontrol_position2microsecond( self->p_media_player,
 188                                             ( mediacontrol_Position* ) begin );
 189         i_debut += i_now;
 190
 191         i_fin = private_mediacontrol_position2microsecond( self->p_media_player,
 192                                           ( mediacontrol_Position * ) end );
 193         i_fin += i_now;
 194
 195         vout_ShowTextAbsolute( p_vout, DEFAULT_CHAN, message, NULL,
 196                                OSD_ALIGN_BOTTOM | OSD_ALIGN_LEFT, 0, 0,
 197                                i_debut, i_fin );
 198     }
 199
 200     vlc_object_release( p_vout );
 201 }
 202
 203 unsigned short
 204 mediacontrol_sound_get_volume( mediacontrol_Instance *self,
 205                                mediacontrol_Exception *exception )
 206 {
 207     int i_ret = 0;
 208
 209     mediacontrol_exception_init( exception );
 210
 211     i_ret = libvlc_audio_get_volume( self->p_instance );
 212     /* FIXME: Normalize in [0..100] */
 213     return (unsigned short)i_ret;
 214 }
 215
 216 void
 217 mediacontrol_sound_set_volume( mediacontrol_Instance *self,
 218                                const unsigned short volume,
 219                                mediacontrol_Exception *exception )
 220 {
 221     /* FIXME: Normalize in [0..100] */
 222     libvlc_exception_t ex;
 223
 224     mediacontrol_exception_init( exception );
 225     libvlc_exception_init( &ex );
 226
 227     libvlc_audio_set_volume( self->p_instance, volume, &ex );
 228     HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
 229 }
 230
 231 int mediacontrol_set_visual( mediacontrol_Instance *self,
 232                                     WINDOWHANDLE visual_id,
 233                                     mediacontrol_Exception *exception )
 234 {
 235     libvlc_exception_t ex;
 236
 237     mediacontrol_exception_init( exception );
 238     libvlc_exception_init( &ex );
 239 #ifdef WIN32
 240     libvlc_media_player_set_hwnd( self->p_media_player, visual_id, &ex );
 241 #else
 242     libvlc_media_player_set_xwindow( self->p_media_player, visual_id, &ex );
 243 #endif
 244     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 245     return true;
 246 }
 247
 248 int
 249 mediacontrol_get_rate( mediacontrol_Instance *self,
 250                mediacontrol_Exception *exception )
 251 {
 252     libvlc_exception_t ex;
 253     int i_ret;
 254
 255     mediacontrol_exception_init( exception );
 256     libvlc_exception_init( &ex );
 257
 258     i_ret = libvlc_media_player_get_rate( self->p_media_player, &ex );
 259     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 260
 261     return i_ret / 10;
 262 }
 263
 264 void
 265 mediacontrol_set_rate( mediacontrol_Instance *self,
 266                const int rate,
 267                mediacontrol_Exception *exception )
 268 {
 269     libvlc_exception_t ex;
 270
 271     mediacontrol_exception_init( exception );
 272     libvlc_exception_init( &ex );
 273
 274     libvlc_media_player_set_rate( self->p_media_player, rate * 10, &ex );
 275     HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
 276 }
 277
 278 int
 279 mediacontrol_get_fullscreen( mediacontrol_Instance *self,
 280                  mediacontrol_Exception *exception )
 281 {
 282     libvlc_exception_t ex;
 283     int i_ret;
 284
 285     mediacontrol_exception_init( exception );
 286     libvlc_exception_init( &ex );
 287
 288     i_ret = libvlc_get_fullscreen( self->p_media_player, &ex );
 289     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 290
 291     return i_ret;
 292 }
 293
 294 void
 295 mediacontrol_set_fullscreen( mediacontrol_Instance *self,
 296                  const int b_fullscreen,
 297                  mediacontrol_Exception *exception )
 298 {
 299     libvlc_exception_t ex;
 300
 301     mediacontrol_exception_init( exception );
 302     libvlc_exception_init( &ex );
 303
 304     libvlc_set_fullscreen( self->p_media_player, b_fullscreen, &ex );
 305     HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
 306 }