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 #include <ctype.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         vlc_object_release( p_vout );
  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
 113     vlc_object_release( p_vout );
 114     return p_pic;
 115 }
 116
 117 static
 118 int mediacontrol_showtext( vout_thread_t *p_vout, int i_channel,
 119                            const char *psz_string, text_style_t *p_style,
 120                            int i_flags, int i_hmargin, int i_vmargin,
 121                            mtime_t i_start, mtime_t i_stop )
 122 {
 123     return osd_ShowTextAbsolute( vout_GetSpu( p_vout ), i_channel,
 124                                  psz_string, p_style,
 125                                  i_flags, i_hmargin, i_vmargin,
 126                                  i_start, i_stop );
 127 }
 128
 129
 130 void
 131 mediacontrol_display_text( mediacontrol_Instance *self,
 132                            const char * message,
 133                            const mediacontrol_Position * begin,
 134                            const mediacontrol_Position * end,
 135                            mediacontrol_Exception *exception )
 136 {
 137     vout_thread_t *p_vout = NULL;
 138     input_thread_t *p_input;
 139     libvlc_exception_t ex;
 140
 141     libvlc_exception_init( &ex );
 142     mediacontrol_exception_init( exception );
 143
 144     if( !message )
 145     {
 146         RAISE_VOID( mediacontrol_InternalException, "Empty text" );
 147     }
 148
 149     p_input = libvlc_get_input_thread( self->p_media_player, &ex );
 150     if( ! p_input )
 151     {
 152         RAISE_VOID( mediacontrol_InternalException, "No input" );
 153     }
 154     p_vout = input_GetVout( p_input );
 155     /*FIXME: take care of the next fixme that can use p_input */
 156     vlc_object_release( p_input );
 157
 158     if( ! p_vout )
 159     {
 160         RAISE_VOID( mediacontrol_InternalException, "No video output" );
 161     }
 162
 163     if( begin->origin == mediacontrol_RelativePosition &&
 164         begin->value == 0 &&
 165         end->origin == mediacontrol_RelativePosition )
 166     {
 167         mtime_t i_duration = 0;
 168         mtime_t i_now = mdate();
 169
 170         i_duration = 1000 * private_mediacontrol_unit_convert(
 171                                                               self->p_media_player,
 172                                                               end->key,
 173                                                               mediacontrol_MediaTime,
 174                                                               end->value );
 175
 176         mediacontrol_showtext( p_vout, DEFAULT_CHAN, message, NULL,
 177                                OSD_ALIGN_BOTTOM | OSD_ALIGN_LEFT, 0, 0,
 178                                i_now, i_now + i_duration );
 179     }
 180     else
 181     {
 182         mtime_t i_debut, i_fin, i_now;
 183
 184         /* FIXME */
 185         /* i_now = input_ClockGetTS( p_input, NULL, 0 ); */
 186         i_now = mdate();
 187
 188         i_debut = private_mediacontrol_position2microsecond( self->p_media_player,
 189                                             ( mediacontrol_Position* ) begin );
 190         i_debut += i_now;
 191
 192         i_fin = private_mediacontrol_position2microsecond( self->p_media_player,
 193                                           ( mediacontrol_Position * ) end );
 194         i_fin += i_now;
 195
 196         vout_ShowTextAbsolute( p_vout, DEFAULT_CHAN, message, NULL,
 197                                OSD_ALIGN_BOTTOM | OSD_ALIGN_LEFT, 0, 0,
 198                                i_debut, i_fin );
 199     }
 200
 201     vlc_object_release( p_vout );
 202 }
 203
 204 unsigned short
 205 mediacontrol_sound_get_volume( mediacontrol_Instance *self,
 206                                mediacontrol_Exception *exception )
 207 {
 208     int i_ret = 0;
 209
 210     mediacontrol_exception_init( exception );
 211
 212     i_ret = libvlc_audio_get_volume( self->p_instance );
 213     /* FIXME: Normalize in [0..100] */
 214     return (unsigned short)i_ret;
 215 }
 216
 217 void
 218 mediacontrol_sound_set_volume( mediacontrol_Instance *self,
 219                                const unsigned short volume,
 220                                mediacontrol_Exception *exception )
 221 {
 222     /* FIXME: Normalize in [0..100] */
 223     libvlc_exception_t ex;
 224
 225     mediacontrol_exception_init( exception );
 226     libvlc_exception_init( &ex );
 227
 228     libvlc_audio_set_volume( self->p_instance, volume, &ex );
 229     HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
 230 }
 231
 232 int mediacontrol_set_visual( mediacontrol_Instance *self,
 233                                     WINDOWHANDLE visual_id,
 234                                     mediacontrol_Exception *exception )
 235 {
 236     libvlc_exception_t ex;
 237
 238     mediacontrol_exception_init( exception );
 239     libvlc_exception_init( &ex );
 240 #ifdef WIN32
 241     libvlc_media_player_set_hwnd( self->p_media_player, visual_id, &ex );
 242 #else
 243     libvlc_media_player_set_xwindow( self->p_media_player, visual_id, &ex );
 244 #endif
 245     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 246     return true;
 247 }
 248
 249 int
 250 mediacontrol_get_rate( mediacontrol_Instance *self,
 251                mediacontrol_Exception *exception )
 252 {
 253     libvlc_exception_t ex;
 254     int i_ret;
 255
 256     mediacontrol_exception_init( exception );
 257     libvlc_exception_init( &ex );
 258
 259     i_ret = libvlc_media_player_get_rate( self->p_media_player, &ex );
 260     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 261
 262     return i_ret / 10;
 263 }
 264
 265 void
 266 mediacontrol_set_rate( mediacontrol_Instance *self,
 267                const int rate,
 268                mediacontrol_Exception *exception )
 269 {
 270     libvlc_exception_t ex;
 271
 272     mediacontrol_exception_init( exception );
 273     libvlc_exception_init( &ex );
 274
 275     libvlc_media_player_set_rate( self->p_media_player, rate * 10, &ex );
 276     HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
 277 }
 278
 279 int
 280 mediacontrol_get_fullscreen( mediacontrol_Instance *self,
 281                  mediacontrol_Exception *exception )
 282 {
 283     libvlc_exception_t ex;
 284     int i_ret;
 285
 286     mediacontrol_exception_init( exception );
 287     libvlc_exception_init( &ex );
 288
 289     i_ret = libvlc_get_fullscreen( self->p_media_player, &ex );
 290     HANDLE_LIBVLC_EXCEPTION_ZERO( &ex );
 291
 292     return i_ret;
 293 }
 294
 295 void
 296 mediacontrol_set_fullscreen( mediacontrol_Instance *self,
 297                  const int b_fullscreen,
 298                  mediacontrol_Exception *exception )
 299 {
 300     libvlc_exception_t ex;
 301
 302     mediacontrol_exception_init( exception );
 303     libvlc_exception_init( &ex );
 304
 305     libvlc_set_fullscreen( self->p_media_player, b_fullscreen, &ex );
 306     HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
 307 }