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