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 #ifndef _INPUT_INTERNAL_H
  25 #define _INPUT_INTERNAL_H 1
  26
  27 #include <vlc_access.h>
  28 #include <vlc_demux.h>
  29 #include <vlc_input.h>
  30
  31 /*****************************************************************************
  32  *  Private input fields
  33  *****************************************************************************/
  34 /* input_source_t: gathers all information per input source */
  35 typedef struct
  36 {
  37     /* Input item description */
  38     input_item_t *p_item;
  39
  40     /* Access/Stream/Demux plugins */
  41     access_t *p_access;
  42     stream_t *p_stream;
  43     demux_t  *p_demux;
  44
  45     /* Title infos for that input */
  46     vlc_bool_t   b_title_demux; /* Titles/Seekpoints provided by demux */
  47     int          i_title;
  48     input_title_t **title;
  49
  50     int i_title_offset;
  51     int i_seekpoint_offset;
  52
  53     int i_title_start;
  54     int i_title_end;
  55     int i_seekpoint_start;
  56     int i_seekpoint_end;
  57
  58     /* Properties */
  59     vlc_bool_t b_can_pace_control;
  60     vlc_bool_t b_can_pause;
  61     vlc_bool_t b_eof;   /* eof of demuxer */
  62
  63     /* Clock average variation */
  64     int     i_cr_average;
  65
  66 } input_source_t;
  67
  68 /** Private input fields */
  69 struct input_thread_private_t
  70 {
  71     /* Global properties */
  72     vlc_bool_t  b_can_pause;
  73
  74     int         i_rate;
  75     /* */
  76     int64_t     i_start;    /* :start-time,0 by default */
  77     int64_t     i_stop;     /* :stop-time, 0 if none */
  78
  79     /* Title infos FIXME multi-input (not easy) ? */
  80     int          i_title;
  81     input_title_t **title;
  82
  83     int i_title_offset;
  84     int i_seekpoint_offset;
  85
  86     /* User bookmarks FIXME won't be easy with multiples input */
  87     int         i_bookmark;
  88     seekpoint_t **bookmark;
  89
  90     /* Global meta datas FIXME move to input_item_t ? */
  91     vlc_meta_t  *p_meta;
  92
  93     /* Output */
  94     es_out_t    *p_es_out;
  95     sout_instance_t *p_sout;            /* XXX Move it to es_out ? */
  96     vlc_bool_t      b_out_pace_control; /*     idem ? */
  97
  98     /* Main input properties */
  99     input_source_t input;
 100     /* Slave demuxers (subs, and others) */
 101     int            i_slave;
 102     input_source_t **slave;
 103
 104     /* Stats counters */
 105     struct {
 106         counter_t *p_read_packets;
 107         counter_t *p_read_bytes;
 108         counter_t *p_input_bitrate;
 109         counter_t *p_demux_read;
 110         counter_t *p_demux_bitrate;
 111         counter_t *p_decoded_audio;
 112         counter_t *p_decoded_video;
 113         counter_t *p_decoded_sub;
 114         counter_t *p_sout_sent_packets;
 115         counter_t *p_sout_sent_bytes;
 116         counter_t *p_sout_send_bitrate;
 117         counter_t *p_played_abuffers;
 118         counter_t *p_lost_abuffers;
 119         counter_t *p_displayed_pictures;
 120         counter_t *p_lost_pictures;
 121         vlc_mutex_t counters_lock;
 122     } counters;
 123
 124     /* Buffer of pending actions */
 125     vlc_mutex_t lock_control;
 126     int i_control;
 127     struct
 128     {
 129         /* XXX: val isn't duplicated so it won't works with string */
 130         int         i_type;
 131         vlc_value_t val;
 132     } control[INPUT_CONTROL_FIFO_SIZE];
 133 };
 134
 135 /***************************************************************************
 136  * Internal control helpers
 137  ***************************************************************************/
 138 enum input_control_e
 139 {
 140     INPUT_CONTROL_SET_DIE,
 141
 142     INPUT_CONTROL_SET_STATE,
 143
 144     INPUT_CONTROL_SET_RATE,
 145     INPUT_CONTROL_SET_RATE_SLOWER,
 146     INPUT_CONTROL_SET_RATE_FASTER,
 147
 148     INPUT_CONTROL_SET_POSITION,
 149     INPUT_CONTROL_SET_POSITION_OFFSET,
 150
 151     INPUT_CONTROL_SET_TIME,
 152     INPUT_CONTROL_SET_TIME_OFFSET,
 153
 154     INPUT_CONTROL_SET_PROGRAM,
 155
 156     INPUT_CONTROL_SET_TITLE,
 157     INPUT_CONTROL_SET_TITLE_NEXT,
 158     INPUT_CONTROL_SET_TITLE_PREV,
 159
 160     INPUT_CONTROL_SET_SEEKPOINT,
 161     INPUT_CONTROL_SET_SEEKPOINT_NEXT,
 162     INPUT_CONTROL_SET_SEEKPOINT_PREV,
 163
 164     INPUT_CONTROL_SET_BOOKMARK,
 165
 166     INPUT_CONTROL_SET_ES,
 167
 168     INPUT_CONTROL_SET_AUDIO_DELAY,
 169     INPUT_CONTROL_SET_SPU_DELAY,
 170
 171     INPUT_CONTROL_ADD_SLAVE,
 172 };
 173
 174 /* Internal helpers */
 175 static inline void input_ControlPush( input_thread_t *p_input,
 176                                       int i_type, vlc_value_t *p_val )
 177 {
 178     vlc_mutex_lock( &p_input->p->lock_control );
 179     if( i_type == INPUT_CONTROL_SET_DIE )
 180     {
 181         /* Special case, empty the control */
 182         p_input->p->i_control = 1;
 183         p_input->p->control[0].i_type = i_type;
 184         memset( &p_input->p->control[0].val, 0, sizeof( vlc_value_t ) );
 185     }
 186     else
 187     {
 188         if( p_input->p->i_control >= INPUT_CONTROL_FIFO_SIZE )
 189         {
 190             msg_Err( p_input, "input control fifo overflow, trashing type=%d",
 191                      i_type );
 192             vlc_mutex_unlock( &p_input->p->lock_control );
 193             return;
 194         }
 195         p_input->p->control[p_input->p->i_control].i_type = i_type;
 196         if( p_val )
 197             p_input->p->control[p_input->p->i_control].val = *p_val;
 198         else
 199             memset( &p_input->p->control[p_input->p->i_control].val, 0,
 200                     sizeof( vlc_value_t ) );
 201
 202         p_input->p->i_control++;
 203     }
 204     vlc_mutex_unlock( &p_input->p->lock_control );
 205 }
 206
 207 /**********************************************************************
 208  * Item metadata
 209  **********************************************************************/
 210 typedef struct playlist_album_t
 211 {
 212     char *psz_artist;
 213     char *psz_album;
 214     vlc_bool_t b_found;
 215 } playlist_album_t;
 216
 217 int         input_MetaFetch     ( playlist_t *, input_item_t * );
 218 int         input_ArtFind       ( playlist_t *, input_item_t * );
 219 vlc_bool_t  input_MetaSatisfied ( playlist_t*, input_item_t*,
 220                                   uint32_t*, uint32_t* );
 221 int         input_DownloadAndCacheArt ( playlist_t *, input_item_t * );
 222
 223 /***************************************************************************
 224  * Internal prototypes
 225  ***************************************************************************/
 226
 227 /* input.c */
 228 #define input_CreateThread2(a,b,c) __input_CreateThread2(VLC_OBJECT(a),b,c)
 229 input_thread_t *__input_CreateThread2 ( vlc_object_t *, input_item_t *, const char * );
 230
 231 /* var.c */
 232 void input_ControlVarInit ( input_thread_t * );
 233 void input_ControlVarClean( input_thread_t * );
 234 void input_ControlVarNavigation( input_thread_t * );
 235 void input_ControlVarTitle( input_thread_t *, int i_title );
 236
 237 void input_ConfigVarInit ( input_thread_t * );
 238
 239 /* stream.c */
 240 stream_t *stream_AccessNew( access_t *p_access, vlc_bool_t );
 241 void stream_AccessDelete( stream_t *s );
 242 void stream_AccessReset( stream_t *s );
 243 void stream_AccessUpdate( stream_t *s );
 244
 245 /* decoder.c FIXME make it public ?*/
 246 void       input_DecoderDiscontinuity( decoder_t * p_dec );
 247 vlc_bool_t input_DecoderEmpty( decoder_t * p_dec );
 248 void       input_DecoderPreroll( decoder_t *p_dec, int64_t i_preroll_end );
 249
 250 /* es_out.c */
 251 es_out_t  *input_EsOutNew( input_thread_t * );
 252 void       input_EsOutDelete( es_out_t * );
 253 es_out_id_t *input_EsOutGetFromID( es_out_t *, int i_id );
 254 void       input_EsOutDiscontinuity( es_out_t *, vlc_bool_t b_audio );
 255 void       input_EsOutSetDelay( es_out_t *, int i_cat, int64_t );
 256 vlc_bool_t input_EsOutDecodersEmpty( es_out_t * );
 257
 258 /* clock.c */
 259 enum /* Synchro states */
 260 {
 261     SYNCHRO_OK     = 0,
 262     SYNCHRO_START  = 1,
 263     SYNCHRO_REINIT = 2,
 264 };
 265
 266 typedef struct
 267 {
 268     /* Synchronization information */
 269     mtime_t                 delta_cr;
 270     mtime_t                 cr_ref, sysdate_ref;
 271     mtime_t                 last_sysdate;
 272     mtime_t                 last_cr; /* reference to detect unexpected stream
 273                                       * discontinuities                      */
 274     mtime_t                 last_pts;
 275     int                     i_synchro_state;
 276
 277     vlc_bool_t              b_master;
 278
 279     /* Config */
 280     int                     i_cr_average;
 281     int                     i_delta_cr_residue;
 282 } input_clock_t;
 283
 284 void input_ClockInit( input_clock_t *, vlc_bool_t b_master, int i_cr_average );
 285 void    input_ClockSetPCR( input_thread_t *, input_clock_t *, mtime_t );
 286 mtime_t input_ClockGetTS( input_thread_t *, input_clock_t *, mtime_t );
 287
 288 /* Subtitles */
 289 char **subtitles_Detect( input_thread_t *, char* path, const char *fname );
 290 int subtitles_Filter( const char *);
 291
 292 void MRLSplit( vlc_object_t *, char *, const char **, const char **, char ** );
 293
 294 static inline void input_ChangeState( input_thread_t *p_input, int state )
 295 {
 296     vlc_value_t val;
 297     val.i_int = p_input->i_state = state;
 298     var_Change( p_input, "state", VLC_VAR_SETVALUE, &val, NULL );
 299 }
 300
 301 /* Access */
 302
 303 #define access2_New( a, b, c, d, e ) __access2_New(VLC_OBJECT(a), b, c, d, e )
 304 access_t * __access2_New( vlc_object_t *p_obj, const char *psz_access,
 305                           const char *psz_demux, const char *psz_path,
 306                           vlc_bool_t b_quick );
 307 access_t * access2_FilterNew( access_t *p_source,
 308                               const char *psz_access_filter );
 309 void access2_Delete( access_t * );
 310
 311 /* Demuxer */
 312 #include <vlc_demux.h>
 313
 314 /* stream_t *s could be null and then it mean a access+demux in one */
 315 #define demux2_New( a, b, c, d, e, f,g ) __demux2_New(VLC_OBJECT(a),b,c,d,e,f,g)
 316 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, vlc_bool_t );
 317
 318 void demux2_Delete(demux_t *);
 319
 320 static inline int demux2_Demux( demux_t *p_demux )
 321 {
 322     return p_demux->pf_demux( p_demux );
 323 }
 324 static inline int demux2_vaControl( demux_t *p_demux, int i_query, va_list args )
 325 {
 326     return p_demux->pf_control( p_demux, i_query, args );
 327 }
 328 static inline int demux2_Control( demux_t *p_demux, int i_query, ... )
 329 {
 330     va_list args;
 331     int     i_result;
 332
 333     va_start( args, i_query );
 334     i_result = demux2_vaControl( p_demux, i_query, args );
 335     va_end( args );
 336     return i_result;
 337 }
 338
 339 #endif