git.sesse.net Git - vlc/blob - src/input/input_internal.h

   1 /*****************************************************************************
   2  * input_internal.h: Internal input structures
   3  *****************************************************************************
   4  * Copyright (C) 1998-2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.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 #if defined(__PLUGIN__) || defined(__BUILTIN__) || !defined(__LIBVLC__)
  25 # error This header file can only be included from LibVLC.
  26 #endif
  27
  28 #ifndef _INPUT_INTERNAL_H
  29 #define _INPUT_INTERNAL_H 1
  30
  31 #include <vlc_access.h>
  32 #include <vlc_demux.h>
  33 #include <vlc_input.h>
  34
  35 /*****************************************************************************
  36  *  Private input fields
  37  *****************************************************************************/
  38 /* input_source_t: gathers all information per input source */
  39 typedef struct
  40 {
  41     /* Input item description */
  42     input_item_t *p_item;
  43
  44     /* Access/Stream/Demux plugins */
  45     access_t *p_access;
  46     stream_t *p_stream;
  47     demux_t  *p_demux;
  48
  49     /* Title infos for that input */
  50     bool   b_title_demux; /* Titles/Seekpoints provided by demux */
  51     int          i_title;
  52     input_title_t **title;
  53
  54     int i_title_offset;
  55     int i_seekpoint_offset;
  56
  57     int i_title_start;
  58     int i_title_end;
  59     int i_seekpoint_start;
  60     int i_seekpoint_end;
  61
  62     /* Properties */
  63     bool b_can_pause;
  64     bool b_can_pace_control;
  65     bool b_can_rate_control;
  66     bool b_rescale_ts;
  67
  68     bool b_eof;   /* eof of demuxer */
  69     double     f_fps;
  70
  71     /* Clock average variation */
  72     int     i_cr_average;
  73
  74 } input_source_t;
  75
  76 /** Private input fields */
  77 struct input_thread_private_t
  78 {
  79     /* Global properties */
  80     bool  b_can_pause;
  81     bool  b_can_rate_control;
  82
  83     int         i_rate;
  84     /* */
  85     int64_t     i_start;    /* :start-time,0 by default */
  86     int64_t     i_stop;     /* :stop-time, 0 if none */
  87     int64_t     i_run;      /* :run-time, 0 if none */
  88
  89     /* Title infos FIXME multi-input (not easy) ? */
  90     int          i_title;
  91     input_title_t **title;
  92
  93     int i_title_offset;
  94     int i_seekpoint_offset;
  95
  96     /* User bookmarks FIXME won't be easy with multiples input */
  97     int         i_bookmark;
  98     seekpoint_t **bookmark;
  99
 100     /* Input attachment */
 101     int i_attachment;
 102     input_attachment_t **attachment;
 103
 104     /* Output */
 105     es_out_t    *p_es_out;
 106     sout_instance_t *p_sout;            /* XXX Move it to es_out ? */
 107     bool      b_sout_keep;
 108     bool      b_out_pace_control; /*     idem ? */
 109     bool      b_owns_its_sout;
 110
 111     /* Main input properties */
 112     input_source_t input;
 113     /* Slave demuxers (subs, and others) */
 114     int            i_slave;
 115     input_source_t **slave;
 116
 117     /* Stats counters */
 118     struct {
 119         counter_t *p_read_packets;
 120         counter_t *p_read_bytes;
 121         counter_t *p_input_bitrate;
 122         counter_t *p_demux_read;
 123         counter_t *p_demux_bitrate;
 124         counter_t *p_decoded_audio;
 125         counter_t *p_decoded_video;
 126         counter_t *p_decoded_sub;
 127         counter_t *p_sout_sent_packets;
 128         counter_t *p_sout_sent_bytes;
 129         counter_t *p_sout_send_bitrate;
 130         counter_t *p_played_abuffers;
 131         counter_t *p_lost_abuffers;
 132         counter_t *p_displayed_pictures;
 133         counter_t *p_lost_pictures;
 134         vlc_mutex_t counters_lock;
 135     } counters;
 136
 137     /* Buffer of pending actions */
 138     vlc_mutex_t lock_control;
 139     int i_control;
 140     struct
 141     {
 142         /* XXX for string value you have to allocate it before calling
 143          * input_ControlPush */
 144         int         i_type;
 145         vlc_value_t val;
 146     } control[INPUT_CONTROL_FIFO_SIZE];
 147 };
 148
 149 /***************************************************************************
 150  * Internal control helpers
 151  ***************************************************************************/
 152 enum input_control_e
 153 {
 154     INPUT_CONTROL_SET_DIE,
 155
 156     INPUT_CONTROL_SET_STATE,
 157
 158     INPUT_CONTROL_SET_RATE,
 159     INPUT_CONTROL_SET_RATE_SLOWER,
 160     INPUT_CONTROL_SET_RATE_FASTER,
 161
 162     INPUT_CONTROL_SET_POSITION,
 163     INPUT_CONTROL_SET_POSITION_OFFSET,
 164
 165     INPUT_CONTROL_SET_TIME,
 166     INPUT_CONTROL_SET_TIME_OFFSET,
 167
 168     INPUT_CONTROL_SET_PROGRAM,
 169
 170     INPUT_CONTROL_SET_TITLE,
 171     INPUT_CONTROL_SET_TITLE_NEXT,
 172     INPUT_CONTROL_SET_TITLE_PREV,
 173
 174     INPUT_CONTROL_SET_SEEKPOINT,
 175     INPUT_CONTROL_SET_SEEKPOINT_NEXT,
 176     INPUT_CONTROL_SET_SEEKPOINT_PREV,
 177
 178     INPUT_CONTROL_SET_BOOKMARK,
 179
 180     INPUT_CONTROL_SET_ES,
 181
 182     INPUT_CONTROL_SET_AUDIO_DELAY,
 183     INPUT_CONTROL_SET_SPU_DELAY,
 184
 185     INPUT_CONTROL_ADD_SLAVE,
 186 };
 187
 188 /* Internal helpers */
 189 static inline void input_ControlPush( input_thread_t *p_input,
 190                                       int i_type, vlc_value_t *p_val )
 191 {
 192     vlc_mutex_lock( &p_input->p->lock_control );
 193     if( i_type == INPUT_CONTROL_SET_DIE )
 194     {
 195         /* Special case, empty the control */
 196         p_input->p->i_control = 1;
 197         p_input->p->control[0].i_type = i_type;
 198         memset( &p_input->p->control[0].val, 0, sizeof( vlc_value_t ) );
 199     }
 200     else
 201     {
 202         if( p_input->p->i_control >= INPUT_CONTROL_FIFO_SIZE )
 203         {
 204             msg_Err( p_input, "input control fifo overflow, trashing type=%d",
 205                      i_type );
 206             vlc_mutex_unlock( &p_input->p->lock_control );
 207             return;
 208         }
 209         p_input->p->control[p_input->p->i_control].i_type = i_type;
 210         if( p_val )
 211             p_input->p->control[p_input->p->i_control].val = *p_val;
 212         else
 213             memset( &p_input->p->control[p_input->p->i_control].val, 0,
 214                     sizeof( vlc_value_t ) );
 215
 216         p_input->p->i_control++;
 217     }
 218     vlc_mutex_unlock( &p_input->p->lock_control );
 219 }
 220
 221 /** Stuff moved out of vlc_input.h -- FIXME: should probably not be inline
 222  * anyway. */
 223
 224 static inline void input_item_SetPreparsed( input_item_t *p_i, bool preparsed )
 225 {
 226     bool send_event = false;
 227
 228     if( !p_i->p_meta )
 229         p_i->p_meta = vlc_meta_New();
 230
 231     vlc_mutex_lock( &p_i->lock );
 232     int new_status;
 233     if( preparsed )
 234         new_status = p_i->p_meta->i_status | ITEM_PREPARSED;
 235     else
 236         new_status = p_i->p_meta->i_status & ~ITEM_PREPARSED;
 237     if ( p_i->p_meta->i_status != new_status )
 238     {
 239         p_i->p_meta->i_status = new_status;
 240         send_event = true;
 241     }
 242
 243     vlc_mutex_unlock( &p_i->lock );
 244
 245     if ( send_event == true )
 246     {
 247         vlc_event_t event;
 248         event.type = vlc_InputItemPreparsedChanged;
 249         event.u.input_item_preparsed_changed.new_status = new_status;
 250         vlc_event_send( &p_i->event_manager, &event );
 251     }
 252 }
 253
 254 static inline void input_item_SetMetaFetched( input_item_t *p_i, bool metafetched )
 255 {
 256     if( !p_i->p_meta )
 257         p_i->p_meta = vlc_meta_New();
 258
 259     if( metafetched )
 260         p_i->p_meta->i_status |= ITEM_META_FETCHED;
 261     else
 262         p_i->p_meta->i_status &= ~ITEM_META_FETCHED;
 263 }
 264
 265 static inline void input_item_SetArtNotFound( input_item_t *p_i, bool notfound )
 266 {
 267     if( !p_i->p_meta )
 268         p_i->p_meta = vlc_meta_New();
 269
 270     if( notfound )
 271         p_i->p_meta->i_status |= ITEM_ART_NOTFOUND;
 272     else
 273         p_i->p_meta->i_status &= ~ITEM_ART_NOTFOUND;
 274 }
 275
 276 static inline void input_item_SetArtFetched( input_item_t *p_i, bool artfetched )
 277 {
 278     if( !p_i->p_meta )
 279         p_i->p_meta = vlc_meta_New();
 280
 281     if( artfetched )
 282         p_i->p_meta->i_status |= ITEM_ART_FETCHED;
 283     else
 284         p_i->p_meta->i_status &= ~ITEM_ART_FETCHED;
 285 }
 286
 287
 288 /**********************************************************************
 289  * Item metadata
 290  **********************************************************************/
 291 typedef struct playlist_album_t
 292 {
 293     char *psz_artist;
 294     char *psz_album;
 295     char *psz_arturl;
 296     bool b_found;
 297 } playlist_album_t;
 298
 299 int         input_MetaFetch     ( playlist_t *, input_item_t * );
 300 int         input_ArtFind       ( playlist_t *, input_item_t * );
 301 bool  input_MetaSatisfied ( playlist_t*, input_item_t*,
 302                                   uint32_t*, uint32_t* );
 303 int         input_DownloadAndCacheArt ( playlist_t *, input_item_t * );
 304
 305 /* Becarefull; p_item lock HAS to be taken */
 306 void input_ExtractAttachmentAndCacheArt( input_thread_t *p_input );
 307
 308 /***************************************************************************
 309  * Internal prototypes
 310  ***************************************************************************/
 311
 312 /* misc/stats.c */
 313 input_stats_t *stats_NewInputStats( input_thread_t *p_input );
 314
 315 /* input.c */
 316 #define input_CreateThreadExtended(a,b,c,d) __input_CreateThreadExtended(VLC_OBJECT(a),b,c,d)
 317 input_thread_t *__input_CreateThreadExtended ( vlc_object_t *, input_item_t *, const char *, sout_instance_t * );
 318
 319 sout_instance_t * input_DetachSout( input_thread_t *p_input );
 320
 321 /* var.c */
 322 void input_ControlVarInit ( input_thread_t * );
 323 void input_ControlVarClean( input_thread_t * );
 324 void input_ControlVarNavigation( input_thread_t * );
 325 void input_ControlVarTitle( input_thread_t *, int i_title );
 326
 327 void input_ConfigVarInit ( input_thread_t * );
 328
 329 /* stream.c */
 330 stream_t *stream_AccessNew( access_t *p_access, bool );
 331 void stream_AccessDelete( stream_t *s );
 332 void stream_AccessReset( stream_t *s );
 333 void stream_AccessUpdate( stream_t *s );
 334
 335 /* decoder.c */
 336 void       input_DecoderDiscontinuity( decoder_t * p_dec, bool b_flush );
 337 bool input_DecoderEmpty( decoder_t * p_dec );
 338 int        input_DecoderSetCcState( decoder_t *, bool b_decode, int i_channel );
 339 int        input_DecoderGetCcState( decoder_t *, bool *pb_decode, int i_channel );
 340 void       input_DecoderIsCcPresent( decoder_t *, bool pb_present[4] );
 341
 342 /* es_out.c */
 343 es_out_t  *input_EsOutNew( input_thread_t *, int i_rate );
 344 void       input_EsOutDelete( es_out_t * );
 345 es_out_id_t *input_EsOutGetFromID( es_out_t *, int i_id );
 346 void       input_EsOutSetDelay( es_out_t *, int i_cat, int64_t );
 347 void       input_EsOutChangeRate( es_out_t *, int );
 348 void       input_EsOutChangeState( es_out_t * );
 349 void       input_EsOutChangePosition( es_out_t * );
 350 bool input_EsOutDecodersEmpty( es_out_t * );
 351
 352 /* clock.c */
 353 enum /* Synchro states */
 354 {
 355     SYNCHRO_OK     = 0,
 356     SYNCHRO_START  = 1,
 357     SYNCHRO_REINIT = 2,
 358 };
 359
 360 typedef struct
 361 {
 362     /* Synchronization information */
 363     mtime_t                 delta_cr;
 364     mtime_t                 cr_ref, sysdate_ref;
 365     mtime_t                 last_sysdate;
 366     mtime_t                 last_cr; /* reference to detect unexpected stream
 367                                       * discontinuities                      */
 368     mtime_t                 last_pts;
 369     mtime_t                 last_update;
 370     int                     i_synchro_state;
 371
 372     bool              b_master;
 373
 374     int                     i_rate;
 375
 376     /* Config */
 377     int                     i_cr_average;
 378     int                     i_delta_cr_residue;
 379 } input_clock_t;
 380
 381 void    input_ClockInit( input_clock_t *, bool b_master, int i_cr_average, int i_rate );
 382 void    input_ClockSetPCR( input_thread_t *, input_clock_t *, mtime_t );
 383 void    input_ClockResetPCR( input_clock_t * );
 384 mtime_t input_ClockGetTS( input_thread_t *, input_clock_t *, mtime_t );
 385 void    input_ClockSetRate( input_clock_t *cl, int i_rate );
 386
 387 /* Subtitles */
 388 char **subtitles_Detect( input_thread_t *, char* path, const char *fname );
 389 int subtitles_Filter( const char *);
 390
 391 void MRLSplit( char *, const char **, const char **, char ** );
 392
 393 static inline void input_ChangeState( input_thread_t *p_input, int state )
 394 {
 395     var_SetInteger( p_input, "state", p_input->i_state = state );
 396 }
 397
 398 /* Access */
 399
 400 #define access2_New( a, b, c, d ) __access2_New(VLC_OBJECT(a), b, c, d )
 401 access_t * __access2_New( vlc_object_t *p_obj, const char *psz_access,
 402                           const char *psz_demux, const char *psz_path );
 403 access_t * access2_FilterNew( access_t *p_source,
 404                               const char *psz_access_filter );
 405 void access2_Delete( access_t * );
 406
 407 /* Demuxer */
 408 #include <vlc_demux.h>
 409
 410 /* stream_t *s could be null and then it mean a access+demux in one */
 411 #define demux2_New( a, b, c, d, e, f,g ) __demux2_New(VLC_OBJECT(a),b,c,d,e,f,g)
 412 demux_t *__demux2_New(vlc_object_t *p_obj, const char *psz_access, const char *psz_demux, const char *psz_path, stream_t *s, es_out_t *out, bool );
 413
 414 void demux2_Delete(demux_t *);
 415
 416 static inline int demux2_Demux( demux_t *p_demux )
 417 {
 418     return p_demux->pf_demux( p_demux );
 419 }
 420 static inline int demux2_vaControl( demux_t *p_demux, int i_query, va_list args )
 421 {
 422     return p_demux->pf_control( p_demux, i_query, args );
 423 }
 424 static inline int demux2_Control( demux_t *p_demux, int i_query, ... )
 425 {
 426     va_list args;
 427     int     i_result;
 428
 429     va_start( args, i_query );
 430     i_result = demux2_vaControl( p_demux, i_query, args );
 431     va_end( args );
 432     return i_result;
 433 }
 434
 435 /* Stream */
 436 /**
 437  * stream_t definition
 438  */
 439 struct stream_t
 440 {
 441     VLC_COMMON_MEMBERS
 442
 443     /*block_t *(*pf_block)  ( stream_t *, int i_size );*/
 444     int      (*pf_read)   ( stream_t *, void *p_read, int i_read );
 445     int      (*pf_peek)   ( stream_t *, const uint8_t **pp_peek, int i_peek );
 446     int      (*pf_control)( stream_t *, int i_query, va_list );
 447     void     (*pf_destroy)( stream_t *);
 448
 449     stream_sys_t *p_sys;
 450
 451     /* UTF-16 and UTF-32 file reading */
 452     vlc_iconv_t     conv;
 453     int             i_char_width;
 454     bool      b_little_endian;
 455 };
 456
 457 #include <libvlc.h>
 458
 459 static inline stream_t *vlc_stream_create( vlc_object_t *obj )
 460 {
 461     return (stream_t *)vlc_custom_create( obj, sizeof(stream_t),
 462                                           VLC_OBJECT_STREAM, "stream" );
 463 }
 464
 465 #endif