media_player.c 43.3 KB
Newer Older
Clément Stenac's avatar
Clément Stenac committed
1
/*****************************************************************************
2
 * media_player.c: Libvlc API Media Instance management functions
Clément Stenac's avatar
Clément Stenac committed
3
 *****************************************************************************
Jean-Baptiste Kempf's avatar
LGPL  
Jean-Baptiste Kempf committed
4
 * Copyright (C) 2005-2011 VLC authors and VideoLAN
Clément Stenac's avatar
Clément Stenac committed
5
 *
6
 * Authors: Clément Stenac <zorglub@videolan.org>
Clément Stenac's avatar
Clément Stenac committed
7
 *
Jean-Baptiste Kempf's avatar
LGPL  
Jean-Baptiste Kempf committed
8 9 10
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
Clément Stenac's avatar
Clément Stenac committed
11 12 13 14
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
Jean-Baptiste Kempf's avatar
LGPL  
Jean-Baptiste Kempf committed
15 16
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
Clément Stenac's avatar
Clément Stenac committed
17
 *
Jean-Baptiste Kempf's avatar
LGPL  
Jean-Baptiste Kempf committed
18 19 20
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
Clément Stenac's avatar
Clément Stenac committed
21 22
 *****************************************************************************/

Geoffroy Couprie's avatar
Geoffroy Couprie committed
23 24 25 26
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

27
#include <assert.h>
28

Clément Stenac's avatar
Clément Stenac committed
29
#include <vlc/libvlc.h>
30 31 32
#include <vlc/libvlc_media.h>
#include <vlc/libvlc_events.h>

Clément Stenac's avatar
Clément Stenac committed
33 34
#include <vlc_demux.h>
#include <vlc_input.h>
35
#include <vlc_vout.h>
36
#include <vlc_keys.h>
37 38 39 40

#include "libvlc_internal.h"
#include "media_internal.h" // libvlc_media_set_state()
#include "media_player_internal.h"
Clément Stenac's avatar
Clément Stenac committed
41

42
static int
43 44 45 46 47 48 49 50
input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
                        vlc_value_t oldval, vlc_value_t newval,
                        void * p_userdata );
static int
input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
                        vlc_value_t oldval, vlc_value_t newval,
                        void * p_userdata );
static int
Laurent Aimar's avatar
Laurent Aimar committed
51
input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
52 53 54
                     vlc_value_t oldval, vlc_value_t newval,
                     void * p_userdata );

55 56 57
static int
snapshot_was_taken( vlc_object_t *p_this, char const *psz_cmd,
                    vlc_value_t oldval, vlc_value_t newval, void *p_data );
58

59
static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi );
60

61 62 63 64 65 66 67
/*
 * Shortcuts
 */

#define register_event(a, b) __register_event(a, libvlc_MediaPlayer ## b)
static inline void __register_event(libvlc_media_player_t *mp, libvlc_event_type_t type)
{
68
    libvlc_event_manager_register_event_type(mp->p_event_manager, type);
69 70
}

71 72 73 74 75 76 77 78 79
/*
 * The input lock protects the input and input resource pointer.
 * It MUST NOT be used from callbacks.
 *
 * The object lock protects the reset, namely the media and the player state.
 * It can, and usually needs to be taken from callbacks.
 * The object lock can be acquired under the input lock... and consequently
 * the opposite order is STRICTLY PROHIBITED.
 */
80 81 82 83 84 85 86 87 88 89
static inline void lock(libvlc_media_player_t *mp)
{
    vlc_mutex_lock(&mp->object_lock);
}

static inline void unlock(libvlc_media_player_t *mp)
{
    vlc_mutex_unlock(&mp->object_lock);
}

90 91 92 93 94 95 96 97 98 99
static inline void lock_input(libvlc_media_player_t *mp)
{
    vlc_mutex_lock(&mp->input.lock);
}

static inline void unlock_input(libvlc_media_player_t *mp)
{
    vlc_mutex_unlock(&mp->input.lock);
}

100
/*
JP Dinger's avatar
JP Dinger committed
101
 * Release the associated input thread.
102 103
 *
 * Object lock is NOT held.
104
 * Input lock is held or instance is being destroyed.
105
 */
106
static void release_input_thread( libvlc_media_player_t *p_mi, bool b_input_abort )
107
{
108
    assert( p_mi );
109

110
    input_thread_t *p_input_thread = p_mi->input.p_thread;
111
    if( !p_input_thread )
112
        return;
113
    p_mi->input.p_thread = NULL;
114

115 116 117 118 119 120 121 122 123
    var_DelCallback( p_input_thread, "can-seek",
                     input_seekable_changed, p_mi );
    var_DelCallback( p_input_thread, "can-pause",
                    input_pausable_changed, p_mi );
    var_DelCallback( p_input_thread, "intf-event",
                     input_event_changed, p_mi );

    /* We owned this one */
    input_Stop( p_input_thread, b_input_abort );
124
    input_Close( p_input_thread );
125 126
}

127 128
/*
 * Retrieve the input thread. Be sure to release the object
129
 * once you are done with it. (libvlc Internal)
130
 */
131
input_thread_t *libvlc_get_input_thread( libvlc_media_player_t *p_mi )
Clément Stenac's avatar
Clément Stenac committed
132 133 134
{
    input_thread_t *p_input_thread;

135
    assert( p_mi );
136

137 138
    lock_input(p_mi);
    p_input_thread = p_mi->input.p_thread;
139 140
    if( p_input_thread )
        vlc_object_hold( p_input_thread );
141 142
    else
        libvlc_printerr( "No active input" );
143
    unlock_input(p_mi);
144

145 146 147
    return p_input_thread;
}

148 149 150 151 152
/*
 * Set the internal state of the media_player. (media player Internal)
 *
 * Function will lock the media_player.
 */
153 154 155 156 157
static void set_state( libvlc_media_player_t *p_mi, libvlc_state_t state,
    bool b_locked )
{
    if(!b_locked)
        lock(p_mi);
158
    p_mi->state = state;
159

160 161 162
    libvlc_media_t *media = p_mi->p_md;
    if (media)
        libvlc_media_retain(media);
163

164 165
    if(!b_locked)
        unlock(p_mi);
166

167 168
    if (media)
    {
169 170 171
        // Also set the state of the corresponding media
        // This is strictly for convenience.
        libvlc_media_set_state(media, state);
172 173

        libvlc_media_release(media);
174 175 176
    }
}

177
static int
178
input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
179 180 181 182
                        vlc_value_t oldval, vlc_value_t newval,
                        void * p_userdata )
{
    VLC_UNUSED(oldval);
183 184
    VLC_UNUSED(p_this);
    VLC_UNUSED(psz_cmd);
185
    libvlc_media_player_t * p_mi = p_userdata;
186 187
    libvlc_event_t event;

188
    event.type = libvlc_MediaPlayerSeekableChanged;
189
    event.u.media_player_seekable_changed.new_seekable = newval.b_bool;
190 191 192 193 194 195 196 197 198 199 200

    libvlc_event_send( p_mi->p_event_manager, &event );
    return VLC_SUCCESS;
}

static int
input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
                        vlc_value_t oldval, vlc_value_t newval,
                        void * p_userdata )
{
    VLC_UNUSED(oldval);
201 202
    VLC_UNUSED(p_this);
    VLC_UNUSED(psz_cmd);
203
    libvlc_media_player_t * p_mi = p_userdata;
204 205
    libvlc_event_t event;

206
    event.type = libvlc_MediaPlayerPausableChanged;
207
    event.u.media_player_pausable_changed.new_pausable = newval.b_bool;
208 209 210 211 212

    libvlc_event_send( p_mi->p_event_manager, &event );
    return VLC_SUCCESS;
}

213
static int
Laurent Aimar's avatar
Laurent Aimar committed
214
input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
215 216 217
                     vlc_value_t oldval, vlc_value_t newval,
                     void * p_userdata )
{
218
    VLC_UNUSED(oldval);
Laurent Aimar's avatar
Laurent Aimar committed
219
    input_thread_t * p_input = (input_thread_t *)p_this;
220
    libvlc_media_player_t * p_mi = p_userdata;
Laurent Aimar's avatar
Laurent Aimar committed
221
    libvlc_event_t event;
222

223
    assert( !strcmp( psz_cmd, "intf-event" ) );
224

225 226
    if( newval.i_int == INPUT_EVENT_STATE )
    {
227
        libvlc_state_t libvlc_state;
228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258

        switch ( var_GetInteger( p_input, "state" ) )
        {
            case INIT_S:
                libvlc_state = libvlc_NothingSpecial;
                event.type = libvlc_MediaPlayerNothingSpecial;
                break;
            case OPENING_S:
                libvlc_state = libvlc_Opening;
                event.type = libvlc_MediaPlayerOpening;
                break;
            case PLAYING_S:
                libvlc_state = libvlc_Playing;
                event.type = libvlc_MediaPlayerPlaying;
                break;
            case PAUSE_S:
                libvlc_state = libvlc_Paused;
                event.type = libvlc_MediaPlayerPaused;
                break;
            case END_S:
                libvlc_state = libvlc_Ended;
                event.type = libvlc_MediaPlayerEndReached;
                break;
            case ERROR_S:
                libvlc_state = libvlc_Error;
                event.type = libvlc_MediaPlayerEncounteredError;
                break;

            default:
                return VLC_SUCCESS;
        }
259

260
        set_state( p_mi, libvlc_state, false );
261 262
        libvlc_event_send( p_mi->p_event_manager, &event );
    }
263 264 265 266 267
    else if( newval.i_int == INPUT_EVENT_ABORT )
    {
        libvlc_state_t libvlc_state = libvlc_Stopped;
        event.type = libvlc_MediaPlayerStopped;

268
        set_state( p_mi, libvlc_state, false );
269 270
        libvlc_event_send( p_mi->p_event_manager, &event );
    }
271
    else if( newval.i_int == INPUT_EVENT_POSITION )
272 273 274 275 276 277
    {
        if( var_GetInteger( p_input, "state" ) != PLAYING_S )
            return VLC_SUCCESS; /* Don't send the position while stopped */

        /* */
        event.type = libvlc_MediaPlayerPositionChanged;
JP Dinger's avatar
JP Dinger committed
278 279
        event.u.media_player_position_changed.new_position =
                                          var_GetFloat( p_input, "position" );
280 281 282 283
        libvlc_event_send( p_mi->p_event_manager, &event );

        /* */
        event.type = libvlc_MediaPlayerTimeChanged;
JP Dinger's avatar
JP Dinger committed
284
        event.u.media_player_time_changed.new_time =
285
           from_mtime(var_GetTime( p_input, "time" ));
286 287
        libvlc_event_send( p_mi->p_event_manager, &event );
    }
288 289 290 291
    else if( newval.i_int == INPUT_EVENT_LENGTH )
    {
        event.type = libvlc_MediaPlayerLengthChanged;
        event.u.media_player_length_changed.new_length =
292
           from_mtime(var_GetTime( p_input, "length" ));
293 294
        libvlc_event_send( p_mi->p_event_manager, &event );
    }
295 296 297 298 299 300 301
    else if( newval.i_int == INPUT_EVENT_CACHE )
    {
        event.type = libvlc_MediaPlayerBuffering;
        event.u.media_player_buffering.new_cache = (int)(100 *
            var_GetFloat( p_input, "cache" ));
        libvlc_event_send( p_mi->p_event_manager, &event );
    }
302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320
    else if( newval.i_int == INPUT_EVENT_VOUT )
    {
        vout_thread_t **pp_vout;
        size_t i_vout;
        if( input_Control( p_input, INPUT_GET_VOUTS, &pp_vout, &i_vout ) )
        {
            i_vout  = 0;
        }
        else
        {
            for( size_t i = 0; i < i_vout; i++ )
                vlc_object_release( pp_vout[i] );
            free( pp_vout );
        }

        event.type = libvlc_MediaPlayerVout;
        event.u.media_player_vout.new_count = i_vout;
        libvlc_event_send( p_mi->p_event_manager, &event );
    }
Laurent Aimar's avatar
Laurent Aimar committed
321

322 323 324
    return VLC_SUCCESS;
}

325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343
/**************************************************************************
 * Snapshot Taken Event.
 *
 * FIXME: This snapshot API interface makes no sense in media_player.
 *************************************************************************/
static int snapshot_was_taken(vlc_object_t *p_this, char const *psz_cmd,
                              vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
    VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_this);

    libvlc_media_player_t *mp = p_data;
    libvlc_event_t event;
    event.type = libvlc_MediaPlayerSnapshotTaken;
    event.u.media_player_snapshot_taken.psz_filename = newval.psz_string;
    libvlc_event_send(mp->p_event_manager, &event);

    return VLC_SUCCESS;
}

344
/* */
345 346
static void libvlc_media_player_destroy( libvlc_media_player_t * );

347

348
/**************************************************************************
JP Dinger's avatar
JP Dinger committed
349 350 351 352 353 354 355 356 357 358 359 360
 * Create a Media Instance object.
 *
 * Refcount strategy:
 * - All items created by _new start with a refcount set to 1.
 * - Accessor _release decrease the refcount by 1, if after that
 *   operation the refcount is 0, the object is destroyed.
 * - Accessor _retain increase the refcount by 1 (XXX: to implement)
 *
 * Object locking strategy:
 * - No lock held while in constructor.
 * - When accessing any member variable this lock is held. (XXX who locks?)
 * - When attempting to destroy the object the lock is also held.
361
 **************************************************************************/
362
libvlc_media_player_t *
Rémi Denis-Courmont's avatar
good  
Rémi Denis-Courmont committed
363
libvlc_media_player_new( libvlc_instance_t *instance )
364
{
365
    libvlc_media_player_t * mp;
366

367
    assert(instance);
368

369 370
    mp = vlc_object_create (instance->p_libvlc_int, sizeof(*mp));
    if (unlikely(mp == NULL))
371
    {
372
        libvlc_printerr("Not enough memory");
373 374
        return NULL;
    }
375

376 377 378
    /* Input */
    var_Create (mp, "rate", VLC_VAR_FLOAT|VLC_VAR_DOINHERIT);

379
    /* Video */
380
    var_Create (mp, "vout", VLC_VAR_STRING|VLC_VAR_DOINHERIT);
381
    var_Create (mp, "window", VLC_VAR_STRING);
382 383 384 385
    var_Create (mp, "vmem-lock", VLC_VAR_ADDRESS);
    var_Create (mp, "vmem-unlock", VLC_VAR_ADDRESS);
    var_Create (mp, "vmem-display", VLC_VAR_ADDRESS);
    var_Create (mp, "vmem-data", VLC_VAR_ADDRESS);
386 387
    var_Create (mp, "vmem-setup", VLC_VAR_ADDRESS);
    var_Create (mp, "vmem-cleanup", VLC_VAR_ADDRESS);
388 389 390
    var_Create (mp, "vmem-chroma", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
    var_Create (mp, "vmem-width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
    var_Create (mp, "vmem-height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
391
    var_Create (mp, "vmem-pitch", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
392
    var_Create (mp, "drawable-xid", VLC_VAR_INTEGER);
393
#if defined (_WIN32) || defined (__OS2__)
394
    var_Create (mp, "drawable-hwnd", VLC_VAR_INTEGER);
395 396 397 398 399 400 401 402 403
#endif
#ifdef __APPLE__
    var_Create (mp, "drawable-agl", VLC_VAR_INTEGER);
    var_Create (mp, "drawable-nsobject", VLC_VAR_ADDRESS);
#endif

    var_Create (mp, "keyboard-events", VLC_VAR_BOOL);
    var_SetBool (mp, "keyboard-events", true);
    var_Create (mp, "mouse-events", VLC_VAR_BOOL);
404
    var_SetBool (mp, "mouse-events", true);
405

406 407 408 409 410 411 412 413 414
    var_Create (mp, "fullscreen", VLC_VAR_BOOL);
    var_Create (mp, "autoscale", VLC_VAR_BOOL);
    var_SetBool (mp, "autoscale", true);
    var_Create (mp, "scale", VLC_VAR_FLOAT);
    var_SetFloat (mp, "scale", 1.);
    var_Create (mp, "aspect-ratio", VLC_VAR_STRING);
    var_Create (mp, "crop", VLC_VAR_STRING);
    var_Create (mp, "deinterlace", VLC_VAR_INTEGER);
    var_Create (mp, "deinterlace-mode", VLC_VAR_STRING);
415

416
    var_Create (mp, "vbi-page", VLC_VAR_INTEGER);
417

418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435
    var_Create (mp, "marq-marquee", VLC_VAR_STRING);
    var_Create (mp, "marq-color", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
    var_Create (mp, "marq-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
    var_Create (mp, "marq-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
    var_Create (mp, "marq-refresh", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
    var_Create (mp, "marq-size", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
    var_Create (mp, "marq-timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
    var_Create (mp, "marq-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
    var_Create (mp, "marq-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);

    var_Create (mp, "logo-file", VLC_VAR_STRING);
    var_Create (mp, "logo-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
    var_Create (mp, "logo-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
    var_Create (mp, "logo-delay", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
    var_Create (mp, "logo-repeat", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
    var_Create (mp, "logo-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
    var_Create (mp, "logo-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);

436 437 438 439 440 441
    var_Create (mp, "contrast", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
    var_Create (mp, "brightness", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
    var_Create (mp, "hue", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
    var_Create (mp, "saturation", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
    var_Create (mp, "gamma", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);

442
     /* Audio */
443
    var_Create (mp, "aout", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
444
    var_Create (mp, "mute", VLC_VAR_BOOL);
445
    var_Create (mp, "volume", VLC_VAR_FLOAT);
446
    var_Create (mp, "corks", VLC_VAR_INTEGER);
447 448
    var_Create (mp, "amem-data", VLC_VAR_ADDRESS);
    var_Create (mp, "amem-setup", VLC_VAR_ADDRESS);
Sébastien Toque's avatar
Sébastien Toque committed
449
    var_Create (mp, "amem-cleanup", VLC_VAR_ADDRESS);
450
    var_Create (mp, "amem-play", VLC_VAR_ADDRESS);
451 452 453 454
    var_Create (mp, "amem-pause", VLC_VAR_ADDRESS);
    var_Create (mp, "amem-resume", VLC_VAR_ADDRESS);
    var_Create (mp, "amem-flush", VLC_VAR_ADDRESS);
    var_Create (mp, "amem-drain", VLC_VAR_ADDRESS);
455 456 457 458
    var_Create (mp, "amem-set-volume", VLC_VAR_ADDRESS);
    var_Create (mp, "amem-format", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
    var_Create (mp, "amem-rate", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
    var_Create (mp, "amem-channels", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
459

460
    mp->p_md = NULL;
461
    mp->state = libvlc_NothingSpecial;
462
    mp->p_libvlc_instance = instance;
463
    mp->input.p_thread = NULL;
464 465 466 467 468 469
    mp->input.p_resource = input_resource_New(VLC_OBJECT(mp));
    if (unlikely(mp->input.p_resource == NULL))
    {
        vlc_object_release(mp);
        return NULL;
    }
470
    vlc_mutex_init (&mp->input.lock);
471
    mp->i_refcount = 1;
472 473
    mp->p_event_manager = libvlc_event_manager_new(mp, instance);
    if (unlikely(mp->p_event_manager == NULL))
474
    {
475
        input_resource_Release(mp->input.p_resource);
476
        vlc_object_release(mp);
477 478
        return NULL;
    }
479
    vlc_mutex_init(&mp->object_lock);
480

481 482 483 484 485 486 487 488 489 490
    register_event(mp, NothingSpecial);
    register_event(mp, Opening);
    register_event(mp, Buffering);
    register_event(mp, Playing);
    register_event(mp, Paused);
    register_event(mp, Stopped);
    register_event(mp, Forward);
    register_event(mp, Backward);
    register_event(mp, EndReached);
    register_event(mp, EncounteredError);
491
    register_event(mp, SeekableChanged);
492 493 494 495 496 497

    register_event(mp, PositionChanged);
    register_event(mp, TimeChanged);
    register_event(mp, LengthChanged);
    register_event(mp, TitleChanged);
    register_event(mp, PausableChanged);
498

499 500
    register_event(mp, Vout);

501
    /* Snapshot initialization */
502
    register_event(mp, SnapshotTaken);
Jean-Paul Saman's avatar
Jean-Paul Saman committed
503

504 505
    register_event(mp, MediaChanged);

506
    /* Attach a var callback to the global object to provide the glue between
507 508 509 510 511 512
     * vout_thread that generates the event and media_player that re-emits it
     * with its own event manager
     *
     * FIXME: It's unclear why we want to put this in public API, and why we
     * want to expose it in such a limiting and ugly way.
     */
513
    var_AddCallback(mp->p_libvlc, "snapshot-file", snapshot_was_taken, mp);
514

515
    libvlc_retain(instance);
516
    return mp;
517 518 519
}

/**************************************************************************
JP Dinger's avatar
JP Dinger committed
520
 * Create a Media Instance object with a media descriptor.
521
 **************************************************************************/
522
libvlc_media_player_t *
Rémi Denis-Courmont's avatar
good  
Rémi Denis-Courmont committed
523
libvlc_media_player_new_from_media( libvlc_media_t * p_md )
524
{
525
    libvlc_media_player_t * p_mi;
526

Rémi Denis-Courmont's avatar
good  
Rémi Denis-Courmont committed
527
    p_mi = libvlc_media_player_new( p_md->p_libvlc_instance );
528
    if( !p_mi )
529 530
        return NULL;

531
    libvlc_media_retain( p_md );
532
    p_mi->p_md = p_md;
533 534 535 536 537

    return p_mi;
}

/**************************************************************************
538
 * Destroy a Media Instance object (libvlc internal)
539
 *
JP Dinger's avatar
JP Dinger committed
540
 * Warning: No lock held here, but hey, this is internal. Caller must lock.
541
 **************************************************************************/
542
static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi )
543
{
544
    assert( p_mi );
Jean-Paul Saman's avatar
Jean-Paul Saman committed
545

546
    /* Detach Callback from the main libvlc object */
547
    var_DelCallback( p_mi->p_libvlc,
548
                     "snapshot-file", snapshot_was_taken, p_mi );
549

550 551
    /* No need for lock_input() because no other threads knows us anymore */
    if( p_mi->input.p_thread )
552
        release_input_thread(p_mi, true);
553 554
    input_resource_Terminate( p_mi->input.p_resource );
    input_resource_Release( p_mi->input.p_resource );
555
    vlc_mutex_destroy( &p_mi->input.lock );
556

557
    libvlc_event_manager_release( p_mi->p_event_manager );
558
    libvlc_media_release( p_mi->p_md );
559
    vlc_mutex_destroy( &p_mi->object_lock );
560 561

    libvlc_instance_t *instance = p_mi->p_libvlc_instance;
562
    vlc_object_release( p_mi );
563
    libvlc_release(instance);
564 565 566
}

/**************************************************************************
JP Dinger's avatar
JP Dinger committed
567 568 569
 * Release a Media Instance object.
 *
 * Function does the locking.
570
 **************************************************************************/
571
void libvlc_media_player_release( libvlc_media_player_t *p_mi )
572
{
573
    bool destroy;
574

575
    assert( p_mi );
576
    lock(p_mi);
577
    destroy = !--p_mi->i_refcount;
578
    unlock(p_mi);
579

580 581
    if( destroy )
        libvlc_media_player_destroy( p_mi );
582
}
583

584
/**************************************************************************
JP Dinger's avatar
JP Dinger committed
585 586 587
 * Retain a Media Instance object.
 *
 * Caller must hold the lock.
588
 **************************************************************************/
589
void libvlc_media_player_retain( libvlc_media_player_t *p_mi )
590
{
591
    assert( p_mi );
592

593
    lock(p_mi);
594
    p_mi->i_refcount++;
595
    unlock(p_mi);
596
}
597

598
/**************************************************************************
JP Dinger's avatar
JP Dinger committed
599 600 601
 * Set the Media descriptor associated with the instance.
 *
 * Enter without lock -- function will lock the object.
602
 **************************************************************************/
603 604
void libvlc_media_player_set_media(
                            libvlc_media_player_t *p_mi,
605
                            libvlc_media_t *p_md )
606
{
607
    lock_input(p_mi);
608

609 610 611
    /* FIXME I am not sure if it is a user request or on die(eof/error)
     * request here */
    release_input_thread( p_mi,
612 613 614
                          p_mi->input.p_thread &&
                          !p_mi->input.p_thread->b_eof &&
                          !p_mi->input.p_thread->b_error );
615

616
    lock( p_mi );
617
    set_state( p_mi, libvlc_NothingSpecial, true );
618
    unlock_input( p_mi );
619

620
    libvlc_media_release( p_mi->p_md );
621

622 623 624
    if( !p_md )
    {
        p_mi->p_md = NULL;
625
        unlock(p_mi);
626 627 628
        return; /* It is ok to pass a NULL md */
    }

629
    libvlc_media_retain( p_md );
630
    p_mi->p_md = p_md;
631

632 633 634 635
    /* The policy here is to ignore that we were created using a different
     * libvlc_instance, because we don't really care */
    p_mi->p_libvlc_instance = p_md->p_libvlc_instance;

636
    unlock(p_mi);
637 638 639 640 641 642

    /* Send an event for the newly available media */
    libvlc_event_t event;
    event.type = libvlc_MediaPlayerMediaChanged;
    event.u.media_player_media_changed.new_media = p_md;
    libvlc_event_send( p_mi->p_event_manager, &event );
643

644 645 646
}

/**************************************************************************
JP Dinger's avatar
JP Dinger committed
647
 * Get the Media descriptor associated with the instance.
648
 **************************************************************************/
649
libvlc_media_t *
650
libvlc_media_player_get_media( libvlc_media_player_t *p_mi )
651
{
652
    libvlc_media_t *p_m;
653

654
    lock(p_mi);
655 656 657
    p_m = p_mi->p_md;
    if( p_m )
        libvlc_media_retain( p_mi->p_md );
658
    unlock(p_mi);
659
    return p_mi->p_md;
660 661
}

662
/**************************************************************************
JP Dinger's avatar
JP Dinger committed
663
 * Get the event Manager.
664 665
 **************************************************************************/
libvlc_event_manager_t *
666
libvlc_media_player_event_manager( libvlc_media_player_t *p_mi )
667 668 669 670
{
    return p_mi->p_event_manager;
}

671
/**************************************************************************
JP Dinger's avatar
JP Dinger committed
672
 * Tell media player to start playing.
673
 **************************************************************************/
Rémi Denis-Courmont's avatar
good  
Rémi Denis-Courmont committed
674
int libvlc_media_player_play( libvlc_media_player_t *p_mi )
675
{
676
    lock_input( p_mi );
677

678 679
    input_thread_t *p_input_thread = p_mi->input.p_thread;
    if( p_input_thread )
680
    {
Sam Hocevar's avatar
Sam Hocevar committed
681
        /* A thread already exists, send it a play message */
682
        input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
683
        unlock_input( p_mi );
Rémi Denis-Courmont's avatar
good  
Rémi Denis-Courmont committed
684
        return 0;
685 686
    }

687
    /* Ignore previous exception */
688
    lock(p_mi);
689

690 691
    if( !p_mi->p_md )
    {
692
        unlock(p_mi);
693
        unlock_input( p_mi );
694
        libvlc_printerr( "No associated media descriptor" );
Rémi Denis-Courmont's avatar
good  
Rémi Denis-Courmont committed
695
        return -1;
696 697
    }

698 699 700 701
    p_input_thread = input_Create( p_mi, p_mi->p_md->p_input_item, NULL,
                                   p_mi->input.p_resource );
    unlock(p_mi);
    if( !p_input_thread )
702
    {
703
        unlock_input(p_mi);
Rémi Denis-Courmont's avatar
good  
Rémi Denis-Courmont committed
704 705
        libvlc_printerr( "Not enough memory" );
        return -1;
706
    }
707

708 709
    var_AddCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
    var_AddCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
Laurent Aimar's avatar
Laurent Aimar committed
710
    var_AddCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
711

712 713
    if( input_Start( p_input_thread ) )
    {
714 715 716 717
        unlock_input(p_mi);
        var_DelCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
        var_DelCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
        var_DelCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
718
        vlc_object_release( p_input_thread );
719 720
        libvlc_printerr( "Input initialization failure" );
        return -1;
721
    }
722 723
    p_mi->input.p_thread = p_input_thread;
    unlock_input(p_mi);
Rémi Denis-Courmont's avatar
good  
Rémi Denis-Courmont committed
724
    return 0;
725 726
}

727
void libvlc_media_player_set_pause( libvlc_media_player_t *p_mi, int paused )
728
{
729
    input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi );
730
    if( !p_input_thread )
731 732
        return;

733
    libvlc_state_t state = libvlc_media_player_get_state( p_mi );
734
    if( state == libvlc_Playing || state == libvlc_Buffering )
735
    {
736 737 738 739 740 741 742
        if( paused )
        {
            if( libvlc_media_player_can_pause( p_mi ) )
                input_Control( p_input_thread, INPUT_SET_STATE, PAUSE_S );
            else
                libvlc_media_player_stop( p_mi );
        }
743
    }
744
    else
745 746 747 748
    {
        if( !paused )
            input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
    }
749

750
    vlc_object_release( p_input_thread );
751
}
752

753 754 755 756 757 758 759 760 761 762 763
/**************************************************************************
 * Toggle pause.
 **************************************************************************/
void libvlc_media_player_pause( libvlc_media_player_t *p_mi )
{
    libvlc_state_t state = libvlc_media_player_get_state( p_mi );
    bool playing = (state == libvlc_Playing || state == libvlc_Buffering);

    libvlc_media_player_set_pause( p_mi, playing );
}

764
/**************************************************************************
JP Dinger's avatar
JP Dinger committed
765 766 767
 * Tells whether the media player is currently playing.
 *
 * Enter with lock held.
768
 **************************************************************************/
769
int libvlc_media_player_is_playing( libvlc_media_player_t *p_mi )
770
{
771
    libvlc_state_t state = libvlc_media_player_get_state( p_mi );
772
    return (libvlc_Playing == state) || (libvlc_Buffering == state);
773 774
}

775
/**************************************************************************
JP Dinger's avatar
JP Dinger committed
776
 * Stop playing.
777
 **************************************************************************/
778
void libvlc_media_player_stop( libvlc_media_player_t *p_mi )
779
{
780
    libvlc_state_t state = libvlc_media_player_get_state( p_mi );
781

782
    lock_input(p_mi);
783 784 785 786 787
    release_input_thread( p_mi, true ); /* This will stop the input thread */

    /* Force to go to stopped state, in case we were in Ended, or Error
     * state. */
    if( state != libvlc_Stopped )
788
    {
789
        set_state( p_mi, libvlc_Stopped, false );
790 791 792

        /* Construct and send the event */
        libvlc_event_t event;
793
        event.type = libvlc_MediaPlayerStopped;
794 795
        libvlc_event_send( p_mi->p_event_manager, &event );
    }
796

797
    input_resource_Terminate( p_mi->input.p_resource );
798
    unlock_input(p_mi);
799 800
}

801 802 803 804 805 806 807 808 809 810 811 812 813 814

void libvlc_video_set_callbacks( libvlc_media_player_t *mp,
    void *(*lock_cb) (void *, void **),
    void (*unlock_cb) (void *, void *, void *const *),
    void (*display_cb) (void *, void *),
    void *opaque )
{
    var_SetAddress( mp, "vmem-lock", lock_cb );
    var_SetAddress( mp, "vmem-unlock", unlock_cb );
    var_SetAddress( mp, "vmem-display", display_cb );
    var_SetAddress( mp, "vmem-data", opaque );
    var_SetString( mp, "vout", "vmem" );
}

815 816 817 818 819 820 821 822
void libvlc_video_set_format_callbacks( libvlc_media_player_t *mp,
                                        libvlc_video_format_cb setup,
                                        libvlc_video_cleanup_cb cleanup )
{
    var_SetAddress( mp, "vmem-setup", setup );
    var_SetAddress( mp, "vmem-cleanup", cleanup );
}

823 824 825 826 827 828 829 830 831
void libvlc_video_set_format( libvlc_media_player_t *mp, const char *chroma,
                              unsigned width, unsigned height, unsigned pitch )
{
    var_SetString( mp, "vmem-chroma", chroma );
    var_SetInteger( mp, "vmem-width", width );
    var_SetInteger( mp, "vmem-height", height );
    var_SetInteger( mp, "vmem-pitch", pitch );
}

832 833 834 835
/**************************************************************************
 * set_nsobject
 **************************************************************************/
void libvlc_media_player_set_nsobject( libvlc_media_player_t *p_mi,
836
                                        void * drawable )
837
{
838 839 840 841 842 843
    assert (p_mi != NULL);
#ifdef __APPLE__
    var_SetAddress (p_mi, "drawable-nsobject", drawable);
#else
    (void) p_mi; (void)drawable;
#endif
844 845 846
}

/**************************************************************************
847
 * get_nsobject
848
 **************************************************************************/
Pierre's avatar
Pierre committed
849
void * libvlc_media_player_get_nsobject( libvlc_media_player_t *p_mi )
850
{
851 852 853 854 855 856
    assert (p_mi != NULL);
#ifdef __APPLE__
    return var_GetAddress (p_mi, "drawable-nsobject");
#else
    return NULL;
#endif
857 858
}

859 860 861 862
/**************************************************************************
 * set_agl
 **************************************************************************/
void libvlc_media_player_set_agl( libvlc_media_player_t *p_mi,
863
                                  uint32_t drawable )
864
{
865 866 867 868 869
#ifdef __APPLE__
    var_SetInteger (p_mi, "drawable-agl", drawable);
#else
    (void) p_mi; (void)drawable;
#endif
870 871 872 873 874 875 876
}

/**************************************************************************
 * get_agl
 **************************************************************************/
uint32_t libvlc_media_player_get_agl( libvlc_media_player_t *p_mi )
{
877 878 879 880 881 882
    assert (p_mi != NULL);
#ifdef __APPLE__
    return var_GetInteger (p_mi, "drawable-agl");
#else
    return 0;
#endif
883 884
}

JP Dinger's avatar
JP Dinger committed
885 886 887
/**************************************************************************
 * set_xwindow
 **************************************************************************/
888
void libvlc_media_player_set_xwindow( libvlc_media_player_t *p_mi,
889
                                      uint32_t drawable )
890
{
891
    assert (p_mi != NULL);
892 893

    var_SetString (p_mi, "vout", drawable ? "xid" : "any");
894
    var_SetString (p_mi, "window", drawable ? "embed-xid,any" : "any");
895
    var_SetInteger (p_mi, "drawable-xid", drawable);
896 897
}

JP Dinger's avatar
JP Dinger committed
898 899 900
/**************************************************************************
 * get_xwindow
 **************************************************************************/
901 902
uint32_t libvlc_media_player_get_xwindow( libvlc_media_player_t *p_mi )
{
903
    return var_GetInteger (p_mi, "drawable-xid");
904 905
}

JP Dinger's avatar
JP Dinger committed
906 907 908
/**************************************************************************
 * set_hwnd
 **************************************************************************/
909
void libvlc_media_player_set_hwnd( libvlc_media_player_t *p_mi,
910
                                   void *drawable )
911
{
912
    assert (p_mi != NULL);
913
#if defined (_WIN32) || defined (__OS2__)
914 915
    var_SetString (p_mi, "window",
                   (drawable != NULL) ? "embed-hwnd,any" : "");
916
    var_SetInteger (p_mi, "drawable-hwnd", (uintptr_t)drawable);
917 918 919
#else
    (void) p_mi; (void) drawable;
#endif
920 921
}

JP Dinger's avatar
JP Dinger committed
922 923 924
/**************************************************************************
 * get_hwnd
 **************************************************************************/
925 926
void *libvlc_media_player_get_hwnd( libvlc_media_player_t *p_mi )
{
927
    assert (p_mi != NULL);
928
#if defined (_WIN32) || defined (__OS2__)
929
    return (void *)(uintptr_t)var_GetInteger (p_mi, "drawable-hwnd");
930 931 932
#else
    return NULL;
#endif
933 934
}

935 936
void libvlc_audio_set_callbacks( libvlc_media_player_t *mp,
                                 libvlc_audio_play_cb play_cb,
937 938 939 940
                                 libvlc_audio_pause_cb pause_cb,
                                 libvlc_audio_resume_cb resume_cb,
                                 libvlc_audio_flush_cb flush_cb,
                                 libvlc_audio_drain_cb drain_cb,
941 942 943
                                 void *opaque )
{
    var_SetAddress( mp, "amem-play", play_cb );
944 945 946 947
    var_SetAddress( mp, "amem-pause", pause_cb );
    var_SetAddress( mp, "amem-resume", resume_cb );
    var_SetAddress( mp, "amem-flush", flush_cb );
    var_SetAddress( mp, "amem-drain", drain_cb );
948
    var_SetAddress( mp, "amem-data", opaque );
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
949
    var_SetString( mp, "aout", "amem,none" );
950 951
}

952 953 954 955 956 957
void libvlc_audio_set_volume_callback( libvlc_media_player_t *mp,
                                       libvlc_audio_set_volume_cb cb )
{
    var_SetAddress( mp, "amem-set-volume", cb );
}

958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974
void libvlc_audio_set_format_callbacks( libvlc_media_player_t *mp,
                                        libvlc_audio_setup_cb setup,
                                        libvlc_audio_cleanup_cb cleanup )
{
    var_SetAddress( mp, "amem-setup", setup );
    var_SetAddress( mp, "amem-cleanup", cleanup );
}

void libvlc_audio_set_format( libvlc_media_player_t *mp, const char *format,
                              unsigned rate, unsigned channels )
{
    var_SetString( mp, "amem-format", format );
    var_SetInteger( mp, "amem-rate", rate );
    var_SetInteger( mp, "amem-channels", channels );
}


975 976 977
/**************************************************************************
 * Getters for stream information
 **************************************************************************/
978
libvlc_time_t libvlc_media_player_get_length(
Rémi Denis-Courmont's avatar
good  
Rémi Denis-Courmont committed
979
                             libvlc_media_player_t *p_mi )
980 981
{
    input_thread_t *p_input_thread;
982
    libvlc_time_t i_time;
983

984
    p_input_thread = libvlc_get_input_thread ( p_mi );
985
    if( !p_input_thread )
Jean-Paul Saman's avatar
Jean-Paul Saman committed
986 987
        return -1;

988
    i_time = from_mtime(var_GetTime( p_input_thread, "length" ));
Clément Stenac's avatar
Clément Stenac committed
989 990
    vlc_object_release( p_input_thread );

991
    return i_time;
Clément Stenac's avatar
Clément Stenac committed
992 993
}

Rémi Denis-Courmont's avatar
good  
Rémi Denis-Courmont committed
994
libvlc_time_t libvlc_media_player_get_time( libvlc_media_player_t *p_mi )
Clément Stenac's avatar
Clément Stenac committed
995 996
{
    input_thread_t *p_input_thread;
997
    libvlc_time_t i_time;
Clément Stenac's avatar
Clément Stenac committed
998

999
    p_input_thread = libvlc_get_input_thread ( p_mi );