]> git.sesse.net Git - vlc/blob - src/input/input_internal.h
Added a INPUT_CONTROL_RESTART_ES and use it in video_output.
[vlc] / 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_can_stream_record;
67     bool b_rescale_ts;
68
69     bool       b_eof;   /* eof of demuxer */
70     double     f_fps;
71
72     /* Clock average variation */
73     int     i_cr_average;
74
75 } input_source_t;
76
77 /** Private input fields */
78 struct input_thread_private_t
79 {
80     /* Object's event manager */
81     vlc_event_manager_t event_manager;
82
83     /* Global properties */
84     bool        b_can_pause;
85     bool        b_can_rate_control;
86
87     int         i_rate;
88     bool        b_recording;
89     /* */
90     int64_t     i_start;    /* :start-time,0 by default */
91     int64_t     i_stop;     /* :stop-time, 0 if none */
92     int64_t     i_run;      /* :run-time, 0 if none */
93
94     /* Title infos FIXME multi-input (not easy) ? */
95     int          i_title;
96     input_title_t **title;
97
98     int i_title_offset;
99     int i_seekpoint_offset;
100
101     /* User bookmarks FIXME won't be easy with multiples input */
102     int         i_bookmark;
103     seekpoint_t **bookmark;
104
105     /* Input attachment */
106     int i_attachment;
107     input_attachment_t **attachment;
108
109     /* Output */
110     es_out_t        *p_es_out;
111     sout_instance_t *p_sout;            /* XXX Move it to es_out ? */
112     bool            b_out_pace_control; /*     idem ? */
113
114     /* Main input properties */
115     input_source_t input;
116     /* Slave demuxers (subs, and others) */
117     int            i_slave;
118     input_source_t **slave;
119
120     /* pts delay fixup */
121     struct
122     {
123         int  i_num_faulty;
124         bool b_to_high;
125         bool b_auto_adjust;
126     } pts_adjust;
127
128     /* Stats counters */
129     struct {
130         counter_t *p_read_packets;
131         counter_t *p_read_bytes;
132         counter_t *p_input_bitrate;
133         counter_t *p_demux_read;
134         counter_t *p_demux_bitrate;
135         counter_t *p_decoded_audio;
136         counter_t *p_decoded_video;
137         counter_t *p_decoded_sub;
138         counter_t *p_sout_sent_packets;
139         counter_t *p_sout_sent_bytes;
140         counter_t *p_sout_send_bitrate;
141         counter_t *p_played_abuffers;
142         counter_t *p_lost_abuffers;
143         counter_t *p_displayed_pictures;
144         counter_t *p_lost_pictures;
145         vlc_mutex_t counters_lock;
146     } counters;
147
148     /* Buffer of pending actions */
149     vlc_mutex_t lock_control;
150     int i_control;
151     struct
152     {
153         /* XXX for string value you have to allocate it before calling
154          * input_ControlPush */
155         int         i_type;
156         vlc_value_t val;
157     } control[INPUT_CONTROL_FIFO_SIZE];
158 };
159
160 /***************************************************************************
161  * Internal control helpers
162  ***************************************************************************/
163 enum input_control_e
164 {
165     INPUT_CONTROL_SET_DIE,
166
167     INPUT_CONTROL_SET_STATE,
168
169     INPUT_CONTROL_SET_RATE,
170     INPUT_CONTROL_SET_RATE_SLOWER,
171     INPUT_CONTROL_SET_RATE_FASTER,
172
173     INPUT_CONTROL_SET_POSITION,
174     INPUT_CONTROL_SET_POSITION_OFFSET,
175
176     INPUT_CONTROL_SET_TIME,
177     INPUT_CONTROL_SET_TIME_OFFSET,
178
179     INPUT_CONTROL_SET_PROGRAM,
180
181     INPUT_CONTROL_SET_TITLE,
182     INPUT_CONTROL_SET_TITLE_NEXT,
183     INPUT_CONTROL_SET_TITLE_PREV,
184
185     INPUT_CONTROL_SET_SEEKPOINT,
186     INPUT_CONTROL_SET_SEEKPOINT_NEXT,
187     INPUT_CONTROL_SET_SEEKPOINT_PREV,
188
189     INPUT_CONTROL_SET_BOOKMARK,
190
191     INPUT_CONTROL_SET_ES,
192     INPUT_CONTROL_RESTART_ES,
193
194     INPUT_CONTROL_SET_AUDIO_DELAY,
195     INPUT_CONTROL_SET_SPU_DELAY,
196
197     INPUT_CONTROL_ADD_SLAVE,
198
199     INPUT_CONTROL_SET_RECORD_STATE,
200 };
201
202 /* Internal helpers */
203 static inline void input_ControlPush( input_thread_t *p_input,
204                                       int i_type, vlc_value_t *p_val )
205 {
206     vlc_mutex_lock( &p_input->p->lock_control );
207     if( i_type == INPUT_CONTROL_SET_DIE )
208     {
209         /* Special case, empty the control */
210         p_input->p->i_control = 1;
211         p_input->p->control[0].i_type = i_type;
212         memset( &p_input->p->control[0].val, 0, sizeof( vlc_value_t ) );
213     }
214     else
215     if( p_input->p->i_control >= INPUT_CONTROL_FIFO_SIZE )
216     {
217         msg_Err( p_input, "input control fifo overflow, trashing type=%d",
218                  i_type );
219     }
220     else
221     {
222         p_input->p->control[p_input->p->i_control].i_type = i_type;
223         if( p_val )
224             p_input->p->control[p_input->p->i_control].val = *p_val;
225         else
226             memset( &p_input->p->control[p_input->p->i_control].val, 0,
227                     sizeof( vlc_value_t ) );
228
229         p_input->p->i_control++;
230     }
231     vlc_mutex_unlock( &p_input->p->lock_control );
232 }
233
234 /** Stuff moved out of vlc_input.h -- FIXME: should probably not be inline
235  * anyway. */
236
237 static inline void input_item_SetPreparsed( input_item_t *p_i, bool preparsed )
238 {
239     bool send_event = false;
240
241     if( !p_i->p_meta )
242         p_i->p_meta = vlc_meta_New();
243
244     vlc_mutex_lock( &p_i->lock );
245     int new_status;
246     if( preparsed )
247         new_status = p_i->p_meta->i_status | ITEM_PREPARSED;
248     else
249         new_status = p_i->p_meta->i_status & ~ITEM_PREPARSED;
250     if( p_i->p_meta->i_status != new_status )
251     {
252         p_i->p_meta->i_status = new_status;
253         send_event = true;
254     }
255
256     vlc_mutex_unlock( &p_i->lock );
257
258     if( send_event )
259     {
260         vlc_event_t event;
261         event.type = vlc_InputItemPreparsedChanged;
262         event.u.input_item_preparsed_changed.new_status = new_status;
263         vlc_event_send( &p_i->event_manager, &event );
264     }
265 }
266
267 static inline void input_item_SetArtNotFound( input_item_t *p_i, bool notfound )
268 {
269     if( !p_i->p_meta )
270         p_i->p_meta = vlc_meta_New();
271
272     if( notfound )
273         p_i->p_meta->i_status |= ITEM_ART_NOTFOUND;
274     else
275         p_i->p_meta->i_status &= ~ITEM_ART_NOTFOUND;
276 }
277
278 static inline void input_item_SetArtFetched( input_item_t *p_i, bool artfetched )
279 {
280     if( !p_i->p_meta )
281         p_i->p_meta = vlc_meta_New();
282
283     if( artfetched )
284         p_i->p_meta->i_status |= ITEM_ART_FETCHED;
285     else
286         p_i->p_meta->i_status &= ~ITEM_ART_FETCHED;
287 }
288
289 void input_item_SetHasErrorWhenReading( input_item_t *p_i, bool error );
290
291 /**********************************************************************
292  * Item metadata
293  **********************************************************************/
294 typedef struct playlist_album_t
295 {
296     char *psz_artist;
297     char *psz_album;
298     char *psz_arturl;
299     bool b_found;
300 } playlist_album_t;
301
302 int         input_ArtFind       ( playlist_t *, input_item_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_ControlVarStop( 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 int        input_EsOutSetRecord(  es_out_t *, bool b_record );
348 void       input_EsOutChangeRate( es_out_t *, int );
349 void       input_EsOutChangeState( es_out_t * );
350 void       input_EsOutChangePosition( es_out_t * );
351 bool input_EsOutDecodersEmpty( es_out_t * );
352
353 /* clock.c */
354 enum /* Synchro states */
355 {
356     SYNCHRO_OK     = 0,
357     SYNCHRO_START  = 1,
358     SYNCHRO_REINIT = 2,
359 };
360
361 typedef struct
362 {
363     /* Synchronization information */
364     mtime_t                 delta_cr;
365     mtime_t                 cr_ref, sysdate_ref;
366     mtime_t                 last_sysdate;
367     mtime_t                 last_cr; /* reference to detect unexpected stream
368                                       * discontinuities                      */
369     mtime_t                 last_pts;
370     mtime_t                 last_update;
371     int                     i_synchro_state;
372
373     bool                    b_master;
374
375     int                     i_rate;
376
377     /* Config */
378     int                     i_cr_average;
379     int                     i_delta_cr_residue;
380 } input_clock_t;
381
382 void    input_ClockInit( input_clock_t *, bool b_master, int i_cr_average, int i_rate );
383 void    input_ClockSetPCR( input_thread_t *, input_clock_t *, mtime_t );
384 void    input_ClockResetPCR( input_clock_t * );
385 mtime_t input_ClockGetTS( input_thread_t *, input_clock_t *, mtime_t );
386 void    input_ClockSetRate( input_clock_t *cl, int i_rate );
387
388 /* Subtitles */
389 char **subtitles_Detect( input_thread_t *, char* path, const char *fname );
390 int subtitles_Filter( const char *);
391
392 static inline void input_ChangeStateWithVarCallback( input_thread_t *p_input, int state, bool callback )
393 {
394     const bool changed = p_input->i_state != state;
395
396     p_input->i_state = state;
397
398     input_item_SetHasErrorWhenReading( p_input->p->input.p_item, (state == ERROR_S) );
399
400     if( callback )
401     {
402         var_SetInteger( p_input, "state", state );
403     }
404     else
405     {
406         vlc_value_t val;
407         val.i_int = state;
408         var_Change( p_input, "state", VLC_VAR_SETVALUE, &val, NULL );
409     }
410     if( changed )
411     {
412         vlc_event_t event;
413         event.type = vlc_InputStateChanged;
414         event.u.input_state_changed.new_state = state;
415         vlc_event_send( &p_input->p->event_manager, &event );
416     }
417 }
418
419 static inline void input_ChangeState( input_thread_t *p_input, int state )
420 {
421     input_ChangeStateWithVarCallback( p_input, state, true );
422 }
423
424 /* Helpers FIXME to export without input_ prefix */
425 char *input_CreateFilename( vlc_object_t *p_obj, const char *psz_path, const char *psz_prefix, const char *psz_extension );
426
427 #define INPUT_RECORD_PREFIX "vlc-record-%Y-%m-%d-%H:%M:%S-$ N-$ p"
428
429 /* Access */
430
431 #define access_New( a, b, c, d ) __access_New(VLC_OBJECT(a), b, c, d )
432 access_t * __access_New( vlc_object_t *p_obj, const char *psz_access,
433                           const char *psz_demux, const char *psz_path );
434 access_t * access_FilterNew( access_t *p_source,
435                               const char *psz_access_filter );
436 void access_Delete( access_t * );
437
438 /* Demuxer */
439 #include <vlc_demux.h>
440
441 /* stream_t *s could be null and then it mean a access+demux in one */
442 #define demux_New( a, b, c, d, e, f,g ) __demux_New(VLC_OBJECT(a),b,c,d,e,f,g)
443 demux_t *__demux_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 );
444
445 void demux_Delete(demux_t *);
446
447 static inline int demux_Demux( demux_t *p_demux )
448 {
449     return p_demux->pf_demux( p_demux );
450 }
451 static inline int demux_vaControl( demux_t *p_demux, int i_query, va_list args )
452 {
453     return p_demux->pf_control( p_demux, i_query, args );
454 }
455 static inline int demux_Control( demux_t *p_demux, int i_query, ... )
456 {
457     va_list args;
458     int     i_result;
459
460     va_start( args, i_query );
461     i_result = demux_vaControl( p_demux, i_query, args );
462     va_end( args );
463     return i_result;
464 }
465
466 /* Stream */
467 /**
468  * stream_t definition
469  */
470 struct stream_t
471 {
472     VLC_COMMON_MEMBERS
473
474     /*block_t *(*pf_block)  ( stream_t *, int i_size );*/
475     int      (*pf_read)   ( stream_t *, void *p_read, unsigned int i_read );
476     int      (*pf_peek)   ( stream_t *, const uint8_t **pp_peek, unsigned int i_peek );
477     int      (*pf_control)( stream_t *, int i_query, va_list );
478     void     (*pf_destroy)( stream_t *);
479
480     stream_sys_t *p_sys;
481
482     /* UTF-16 and UTF-32 file reading */
483     vlc_iconv_t     conv;
484     int             i_char_width;
485     bool            b_little_endian;
486 };
487
488 #include <libvlc.h>
489
490 static inline stream_t *vlc_stream_create( vlc_object_t *obj )
491 {
492     return (stream_t *)vlc_custom_create( obj, sizeof(stream_t),
493                                           VLC_OBJECT_GENERIC, "stream" );
494 }
495
496 #endif