1 /*****************************************************************************
2 * input_programs.c: es_descriptor_t, pgrm_descriptor_t management
3 *****************************************************************************
4 * Copyright (C) 1999, 2000 VideoLAN
5 * $Id: input_programs.c,v 1.7 2000/12/20 22:23:23 reno Exp $
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.
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.
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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
39 #include "stream_control.h"
40 #include "input_ext-intf.h"
41 #include "input_ext-dec.h"
44 #include "main.h" /* --noaudio --novideo */
47 * NOTICE : all of these functions expect you to have taken the lock on
48 * p_input->stream.lock
51 /*****************************************************************************
52 * input_InitStream: init the stream descriptor of the given input
53 *****************************************************************************/
54 void input_InitStream( input_thread_t * p_input, size_t i_data_len )
56 p_input->stream.i_stream_id = 0;
57 p_input->stream.i_pgrm_number = 0;
58 p_input->stream.pp_programs = NULL;
62 p_input->stream.p_demux_data = malloc( i_data_len );
63 memset( p_input->stream.p_demux_data, 0, i_data_len );
67 /*****************************************************************************
68 * input_AddProgram: add and init a program descriptor
69 *****************************************************************************
70 * This program descriptor will be referenced in the given stream descriptor
71 *****************************************************************************/
72 pgrm_descriptor_t * input_AddProgram( input_thread_t * p_input,
73 u16 i_pgrm_id, size_t i_data_len )
75 /* Where to add the pgrm */
76 int i_pgrm_index = p_input->stream.i_pgrm_number;
78 intf_DbgMsg("Adding description for pgrm %d", i_pgrm_id);
80 /* Add an entry to the list of program associated with the stream */
81 p_input->stream.i_pgrm_number++;
82 p_input->stream.pp_programs = realloc( p_input->stream.pp_programs,
83 p_input->stream.i_pgrm_number
84 * sizeof(pgrm_descriptor_t *) );
86 /* Allocate the structure to store this description */
87 p_input->stream.pp_programs[i_pgrm_index] =
88 malloc( sizeof(pgrm_descriptor_t) );
91 p_input->stream.pp_programs[i_pgrm_index]->i_number = i_pgrm_id;
92 p_input->stream.pp_programs[i_pgrm_index]->b_is_ok = 0;
93 p_input->stream.pp_programs[i_pgrm_index]->i_version = 0;
95 p_input->stream.pp_programs[i_pgrm_index]->i_es_number = 0;
96 p_input->stream.pp_programs[i_pgrm_index]->pp_es = NULL;
98 p_input->stream.pp_programs[i_pgrm_index]->delta_cr = 0;
99 p_input->stream.pp_programs[i_pgrm_index]->delta_absolute = 0;
100 p_input->stream.pp_programs[i_pgrm_index]->last_cr = 0;
101 p_input->stream.pp_programs[i_pgrm_index]->c_average_count = 0;
102 p_input->stream.pp_programs[i_pgrm_index]->i_synchro_state
103 = SYNCHRO_NOT_STARTED;
104 p_input->stream.pp_programs[i_pgrm_index]->b_discontinuity = 0;
106 p_input->stream.pp_programs[i_pgrm_index]->p_vout
107 = p_input->p_default_vout;
108 p_input->stream.pp_programs[i_pgrm_index]->p_aout
109 = p_input->p_default_aout;
113 p_input->stream.pp_programs[i_pgrm_index]->p_demux_data =
114 malloc( i_data_len );
115 memset( p_input->stream.pp_programs[i_pgrm_index]->p_demux_data, 0,
119 return p_input->stream.pp_programs[i_pgrm_index];
122 /*****************************************************************************
123 * input_DelProgram: destroy a program descriptor
124 *****************************************************************************
125 * All ES descriptions referenced in the descriptor will be deleted.
126 *****************************************************************************/
127 void input_DelProgram( input_thread_t * p_input, u16 i_pgrm_id )
129 int i_index, i_pgrm_index = -1;
130 pgrm_descriptor_t * p_pgrm = NULL;
132 intf_DbgMsg("Deleting description for pgrm %d", i_pgrm_id);
134 /* Find where this program is described */
135 for( i_index = 0; i_index < p_input->stream.i_pgrm_number; i_index++ )
137 if( p_input->stream.pp_programs[i_index]->i_number == i_pgrm_id )
139 i_pgrm_index = i_index;
140 p_pgrm = p_input->stream.pp_programs[ i_pgrm_index ];
145 /* Make sure that the pgrm exists */
146 ASSERT(i_pgrm_index >= 0);
149 /* Free the structures that describe the es that belongs to that program */
150 for( i_index = 0; i_index < p_pgrm->i_es_number; i_index++ )
152 input_DelES( p_input, p_pgrm->pp_es[i_index]->i_id );
155 /* Free the table of es descriptors */
156 free( p_pgrm->pp_es );
158 /* Free the demux data */
159 if( p_pgrm->p_demux_data != NULL )
161 free( p_pgrm->p_demux_data );
164 /* Free the description of this stream */
167 /* Remove this program from the stream's list of programs */
168 p_input->stream.i_pgrm_number--;
169 p_input->stream.pp_programs[i_pgrm_index] =
170 p_input->stream.pp_programs[p_input->stream.i_pgrm_number];
171 p_input->stream.pp_programs = realloc( p_input->stream.pp_programs,
172 p_input->stream.i_pgrm_number
173 * sizeof(pgrm_descriptor_t *) );
176 /*****************************************************************************
178 *****************************************************************************
179 * Reserve a slot in the table of ES descriptors for the ES and add it to the
180 * list of ES of p_pgrm. If p_pgrm if NULL, then the ES is considered as stand
182 *****************************************************************************/
183 es_descriptor_t * input_AddES( input_thread_t * p_input,
184 pgrm_descriptor_t * p_pgrm, u16 i_es_id,
188 es_descriptor_t * p_es = NULL;
190 intf_DbgMsg("Adding description for ES %d", i_es_id);
192 /* Find an empty slot to store the description of that es */
193 for( i_index = 0; i_index < INPUT_MAX_ES &&
194 p_input->p_es[i_index].i_id != EMPTY_ID; i_index++ );
196 if( i_index >= INPUT_MAX_ES )
198 /* No slot is empty */
199 intf_ErrMsg("Stream carries too many ES for our decoder");
200 input_DumpStream( p_input );
204 /* Reserve the slot for that ES */
205 p_es = &p_input->p_es[i_index];
206 p_es->i_id = i_es_id;
207 intf_DbgMsg("Slot %d in p_es table assigned to ES %d",
210 /* Init its values */
211 p_es->b_discontinuity = 0;
213 p_es->p_decoder_fifo = NULL;
217 p_es->p_demux_data = malloc( i_data_len );
218 memset( p_es->p_demux_data, 0, i_data_len );
221 /* Add this ES to the program definition if one is given */
224 p_pgrm->i_es_number++;
225 p_pgrm->pp_es = realloc( p_pgrm->pp_es,
227 * sizeof(es_descriptor_t *) );
228 p_pgrm->pp_es[p_pgrm->i_es_number - 1] = p_es;
229 p_es->p_pgrm = p_pgrm;
240 /*****************************************************************************
242 *****************************************************************************/
243 void input_DelES( input_thread_t * p_input, u16 i_id )
246 pgrm_descriptor_t * p_pgrm = NULL;
247 es_descriptor_t * p_es = NULL;
249 /* Look for the description of the ES */
250 for( i_index = 0; i_index < INPUT_MAX_ES; i_index++ )
252 if( p_input->p_es[i_index].i_id == i_id )
254 p_es = &p_input->p_es[i_index];
255 p_pgrm = p_input->p_es[i_index].p_pgrm;
262 /* Remove this ES from the description of the program if it is associated to
266 for( i_index = 0; ; i_index++ )
268 if( p_pgrm->pp_es[i_index]->i_id == i_id )
270 p_pgrm->i_es_number--;
271 p_pgrm->pp_es[i_index] = p_pgrm->pp_es[p_pgrm->i_es_number];
272 p_pgrm->pp_es = realloc( p_pgrm->pp_es,
274 * sizeof(es_descriptor_t *));
280 /* The table of stream descriptors is static, so don't free memory
281 * but just mark the slot as unused */
282 p_es->i_id = EMPTY_ID;
284 /* Free the demux data */
285 if( p_es->p_demux_data != NULL )
287 free( p_es->p_demux_data );
292 /*****************************************************************************
293 * input_DumpStream: dumps the contents of a stream descriptor
294 *****************************************************************************/
295 void input_DumpStream( input_thread_t * p_input )
298 #define S p_input->stream
299 intf_Msg( "input info: Dumping stream ID 0x%x\n", S.i_stream_id );
301 intf_Msg( "input info: seekable stream, position: %d/%d\n",
302 S.i_tell, S.i_size );
304 intf_Msg( "input info: %s\n", S.b_pace_control ? "pace controlled" :
305 "pace un-controlled" );
307 for( i = 0; i < p_input->stream.i_pgrm_number; i++ )
309 #define P p_input->stream.pp_programs[i]
310 intf_Msg( "input info: Dumping program 0x%x, version %d (%s)\n",
311 P->i_number, P->i_version,
312 P->b_is_ok ? "complete" : "partial" );
313 if( P->i_synchro_state == SYNCHRO_OK )
314 intf_Msg( "input info: synchro absolute delta : %lld (jitter : %lld)\n",
315 P->delta_absolute, P->delta_cr );
317 for( j = 0; j < p_input->stream.pp_programs[i]->i_es_number; j++ )
319 #define ES p_input->stream.pp_programs[i]->pp_es[j]
320 intf_Msg( "input info: ES 0x%x, stream 0x%x, type 0x%x, %s\n",
321 ES->i_id, ES->i_stream_id, ES->i_type,
322 ES->p_decoder_fifo != NULL ? "selected" : "not selected");
329 /*****************************************************************************
330 * InitDecConfig: initializes a decoder_config_t
331 *****************************************************************************/
332 static int InitDecConfig( input_thread_t * p_input, es_descriptor_t * p_es,
333 decoder_config_t * p_config )
335 p_config->i_stream_id = p_es->i_stream_id;
336 p_config->i_type = p_es->i_type;
337 p_config->p_stream_ctrl =
338 &p_input->stream.control;
341 if( (p_config->p_decoder_fifo =
342 (decoder_fifo_t *)malloc( sizeof(decoder_fifo_t) )) == NULL )
344 intf_ErrMsg( "Out of memory" );
348 vlc_mutex_init(&p_config->p_decoder_fifo->data_lock);
349 vlc_cond_init(&p_config->p_decoder_fifo->data_wait);
350 p_config->p_decoder_fifo->i_start = p_config->p_decoder_fifo->i_end = 0;
351 p_config->p_decoder_fifo->b_die = 0;
352 p_config->p_decoder_fifo->p_packets_mgt = p_input->p_method_data;
353 p_config->p_decoder_fifo->pf_delete_pes =
354 p_input->p_plugin->pf_delete_pes;
355 p_es->p_decoder_fifo = p_config->p_decoder_fifo;
357 p_config->pf_init_bit_stream = InitBitstream;
362 /*****************************************************************************
363 * GetVdecConfig: returns a valid vdec_config_t
364 *****************************************************************************/
365 static vdec_config_t * GetVdecConfig( input_thread_t * p_input,
366 es_descriptor_t * p_es )
368 vdec_config_t * p_config;
370 p_config = (vdec_config_t *)malloc( sizeof(vdec_config_t) );
371 p_config->p_vout = p_input->p_default_vout;
372 if( InitDecConfig( p_input, p_es, &p_config->decoder_config ) == -1 )
381 /*****************************************************************************
382 * GetAdecConfig: returns a valid adec_config_t
383 *****************************************************************************/
384 static adec_config_t * GetAdecConfig( input_thread_t * p_input,
385 es_descriptor_t * p_es )
387 adec_config_t * p_config;
389 p_config = (adec_config_t *)malloc( sizeof(adec_config_t) );
390 p_config->p_aout = p_input->p_default_aout;
391 if( InitDecConfig( p_input, p_es, &p_config->decoder_config ) == -1 )
400 /*****************************************************************************
401 * input_SelectES: selects an ES and spawns the associated decoder
402 *****************************************************************************/
403 int input_SelectES( input_thread_t * p_input, es_descriptor_t * p_es )
406 es_descriptor_t ** p_spot = NULL;
409 intf_DbgMsg( "Selecting ES %d", p_es->i_id );
412 if( p_es->p_decoder_fifo != NULL )
414 intf_ErrMsg( "ES %d is already selected", p_es->i_id );
418 /* Find a free spot in pp_selected_es. */
419 for( i = 0; i < INPUT_MAX_SELECTED_ES; i++ )
421 if( p_input->pp_selected_es[i] == NULL )
423 p_spot = &p_input->pp_selected_es[i];
430 intf_ErrMsg( "Too many ES selected" );
434 switch( p_es->i_type )
438 if( p_main->b_audio )
440 p_es->thread_id = adec_CreateThread( GetAdecConfig( p_input,
447 if( p_main->b_video )
449 p_es->thread_id = vpar_CreateThread( GetVdecConfig( p_input,
455 if( p_main->b_audio )
457 p_es->thread_id = ac3dec_CreateThread( GetAdecConfig( p_input,
463 if( p_main->b_video )
465 p_es->thread_id = spudec_CreateThread( GetVdecConfig( p_input,
471 intf_ErrMsg( "Unknown stream type %d", p_es->i_type );