1 /*****************************************************************************
2 * audio_output.c : audio output thread
3 *****************************************************************************
4 * Copyright (C) 1999, 2000 VideoLAN
6 * Authors: Michel Kaempf <maxx@via.ecp.fr>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
21 *****************************************************************************/
25 * - Passer un certain nombre de "fonctions" (genre add_samples) en macro ou
27 * - Faire les optimisations dans les fonctions threads :
28 * = Stocker les "petits calculs" dans des variables au lieu de les refaire
30 * = Utiliser des tables pour les gros calculs
31 * - Faire une structure différente pour intf/adec fifo
35 /*****************************************************************************
37 *****************************************************************************/
40 #include <unistd.h> /* getpid() */
42 #include <stdio.h> /* "intf_msg.h" */
43 #include <stdlib.h> /* calloc(), malloc(), free() */
48 #include "mtime.h" /* mtime_t, mdate(), msleep() */
51 #include "intf_msg.h" /* intf_DbgMsg(), intf_ErrMsg() */
53 #include "audio_output.h"
56 /*****************************************************************************
58 *****************************************************************************/
60 static int aout_SpawnThread( aout_thread_t * p_aout );
62 /* Creating as much aout_Thread functions as configurations is one solution,
63 * examining the different cases in the Thread loop of an unique function is
64 * another. I chose the first solution. */
65 void aout_Thread_S8_Mono ( aout_thread_t * p_aout );
66 void aout_Thread_U8_Mono ( aout_thread_t * p_aout );
67 void aout_Thread_S16_Mono ( aout_thread_t * p_aout );
68 void aout_Thread_U16_Mono ( aout_thread_t * p_aout );
69 void aout_Thread_S8_Stereo ( aout_thread_t * p_aout );
70 void aout_Thread_U8_Stereo ( aout_thread_t * p_aout );
71 void aout_Thread_S16_Stereo ( aout_thread_t * p_aout );
72 void aout_Thread_U16_Stereo ( aout_thread_t * p_aout );
74 static __inline__ void InitializeIncrement( aout_increment_t * p_increment, long l_numerator, long l_denominator );
75 static __inline__ int NextFrame( aout_thread_t * p_aout, aout_fifo_t * p_fifo, mtime_t aout_date );
77 /*****************************************************************************
79 *****************************************************************************/
80 static __inline__ void InitializeIncrement( aout_increment_t * p_increment, long l_numerator, long l_denominator )
82 p_increment->l_remainder = -l_denominator;
84 p_increment->l_euclidean_integer = 0;
85 while ( l_numerator >= l_denominator )
87 p_increment->l_euclidean_integer++;
88 l_numerator -= l_denominator;
91 p_increment->l_euclidean_remainder = l_numerator;
93 p_increment->l_euclidean_denominator = l_denominator;
96 /*****************************************************************************
97 * aout_CreateThread: initialize audio thread
98 *****************************************************************************/
99 aout_thread_t *aout_CreateThread( int *pi_status )
101 aout_thread_t * p_aout; /* thread descriptor */
102 typedef void ( aout_getplugin_t ) ( aout_thread_t * p_aout );
104 int i_best_index = 0, i_best_score = 0;
106 int i_status; /* thread status */
109 /* Allocate descriptor */
110 p_aout = (aout_thread_t *) malloc( sizeof(aout_thread_t) );
116 /* Get a suitable audio plugin */
117 for( i_index = 0 ; i_index < p_main->p_bank->i_plugin_count ; i_index++ )
119 /* If there's a plugin in p_info ... */
120 if( p_main->p_bank->p_info[ i_index ] != NULL )
122 /* ... and if this plugin provides the functions we want ... */
123 if( p_main->p_bank->p_info[ i_index ]->aout_GetPlugin != NULL )
125 /* ... and if this plugin has a good score ... */
126 if( p_main->p_bank->p_info[ i_index ]->i_score > i_best_score )
128 /* ... then take it */
129 i_best_score = p_main->p_bank->p_info[ i_index ]->i_score;
130 i_best_index = i_index;
136 if( i_best_score == 0 )
142 /* Get the plugin functions */
143 ( (aout_getplugin_t *)
144 p_main->p_bank->p_info[ i_best_index ]->aout_GetPlugin )( p_aout );
147 * Initialize audio device
149 if ( p_aout->p_sys_open( p_aout ) )
155 p_aout->b_stereo = ( p_aout->i_channels == 2 ) ? 1 : 0; /* FIXME: only works
156 for i_channels == 1 or 2 ??*/
158 if ( p_aout->p_sys_reset( p_aout ) )
160 p_aout->p_sys_close( p_aout );
164 if ( p_aout->p_sys_setformat( p_aout ) )
166 p_aout->p_sys_close( p_aout );
170 if ( p_aout->p_sys_setchannels( p_aout ) )
172 p_aout->p_sys_close( p_aout );
176 if ( p_aout->p_sys_setrate( p_aout ) )
178 p_aout->p_sys_close( p_aout );
183 /* Initialize the volume level */
184 p_aout->vol = VOLUME_DEFAULT;
186 /* FIXME: maybe it would be cleaner to change SpawnThread prototype
187 * see vout to handle status correctly ?? however, it is not critical since
188 * this thread is only called in main and all calls are blocking */
189 if( aout_SpawnThread( p_aout ) )
191 p_aout->p_sys_close( p_aout );
199 /*****************************************************************************
201 *****************************************************************************/
202 static int aout_SpawnThread( aout_thread_t * p_aout )
206 void * aout_thread = NULL;
208 intf_DbgMsg("aout debug: spawning audio output thread (%p)", p_aout);
210 /* We want the audio output thread to live */
212 p_aout->b_active = 1;
214 /* Initialize the fifos lock */
215 vlc_mutex_init( &p_aout->fifos_lock );
216 /* Initialize audio fifos : set all fifos as empty and initialize locks */
217 for ( i_fifo = 0; i_fifo < AOUT_MAX_FIFOS; i_fifo++ )
219 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO;
220 vlc_mutex_init( &p_aout->fifo[i_fifo].data_lock );
221 vlc_cond_init( &p_aout->fifo[i_fifo].data_wait );
224 /* Compute the size (in audio units) of the audio output buffer. Although
225 * AOUT_BUFFER_DURATION is given in microseconds, the output rate is given
226 * in Hz, that's why we need to divide by 10^6 microseconds (1 second) */
227 p_aout->l_units = (long)( ((s64)p_aout->l_rate * AOUT_BUFFER_DURATION) / 1000000 );
228 p_aout->l_msleep = (long)( ((s64)p_aout->l_units * 1000000) / (s64)p_aout->l_rate );
230 /* Make aout_thread point to the right thread function, and compute the
231 * byte size of the audio output buffer */
232 switch ( p_aout->i_channels )
234 /* Audio output is mono */
236 switch ( p_aout->i_format )
239 l_bytes = 1 * sizeof(u8) * p_aout->l_units;
240 aout_thread = (void *)aout_Thread_U8_Mono;
244 l_bytes = 1 * sizeof(s8) * p_aout->l_units;
245 aout_thread = (void *)aout_Thread_S8_Mono;
248 case AOUT_FMT_U16_LE:
249 case AOUT_FMT_U16_BE:
250 l_bytes = 1 * sizeof(u16) * p_aout->l_units;
251 aout_thread = (void *)aout_Thread_U16_Mono;
254 case AOUT_FMT_S16_LE:
255 case AOUT_FMT_S16_BE:
256 l_bytes = 1 * sizeof(s16) * p_aout->l_units;
257 aout_thread = (void *)aout_Thread_S16_Mono;
261 intf_ErrMsg( "aout error: unknown audio output format (%i)",
267 /* Audio output is stereo */
269 switch ( p_aout->i_format )
272 l_bytes = 2 * sizeof(u8) * p_aout->l_units;
273 aout_thread = (void *)aout_Thread_U8_Stereo;
277 l_bytes = 2 * sizeof(s8) * p_aout->l_units;
278 aout_thread = (void *)aout_Thread_S8_Stereo;
281 case AOUT_FMT_U16_LE:
282 case AOUT_FMT_U16_BE:
283 l_bytes = 2 * sizeof(u16) * p_aout->l_units;
284 aout_thread = (void *)aout_Thread_U16_Stereo;
287 case AOUT_FMT_S16_LE:
288 case AOUT_FMT_S16_BE:
289 l_bytes = 2 * sizeof(s16) * p_aout->l_units;
290 aout_thread = (void *)aout_Thread_S16_Stereo;
294 intf_ErrMsg("aout error: unknown audio output format (%i)",
301 intf_ErrMsg("aout error: unknown number of audio channels (%i)",
302 p_aout->i_channels );
306 /* Allocate the memory needed by the audio output buffers, and set to zero
307 * the s32 buffer's memory */
308 if ( (p_aout->buffer = malloc(l_bytes)) == NULL )
310 intf_ErrMsg("aout error: not enough memory to create the output buffer");
313 if ( (p_aout->s32_buffer = (s32 *)calloc(p_aout->l_units, sizeof(s32) << ( p_aout->b_stereo))) == NULL )
315 intf_ErrMsg("aout error: not enough memory to create the s32 output buffer");
316 free( p_aout->buffer );
320 /* Before launching the thread, we try to predict the date of the first
321 * audio unit in the first output buffer */
322 p_aout->date = mdate() - 1000000;
324 /* Launch the thread */
325 if ( vlc_thread_create( &p_aout->thread_id, "audio output", (vlc_thread_func_t)aout_thread, p_aout ) )
327 intf_ErrMsg("aout error: can't spawn audio output thread (%p)", p_aout);
328 free( p_aout->buffer );
329 free( p_aout->s32_buffer );
333 intf_DbgMsg("aout debug: audio output thread (%p) spawned", p_aout);
337 /*****************************************************************************
339 *****************************************************************************/
340 void aout_DestroyThread( aout_thread_t * p_aout, int *pi_status )
342 /* FIXME: pi_status is not handled correctly: check vout how to do!?? */
344 intf_DbgMsg("aout debug: requesting termination of audio output thread (%p)", p_aout);
346 /* Ask thread to kill itself and wait until it's done */
348 vlc_thread_join( p_aout->thread_id ); /* only if pi_status is NULL */
350 /* Free the allocated memory */
351 free( p_aout->buffer );
352 free( p_aout->s32_buffer );
354 /* Free the structure */
355 p_aout->p_sys_close( p_aout );
356 intf_DbgMsg("aout debug: audio device (%s) closed", p_aout->psz_device);
362 /*****************************************************************************
364 *****************************************************************************/
365 aout_fifo_t * aout_CreateFifo( aout_thread_t * p_aout, aout_fifo_t * p_fifo )
369 /* Take the fifos lock */
370 vlc_mutex_lock( &p_aout->fifos_lock );
372 /* Looking for a free fifo structure */
373 for ( i_fifo = 0; i_fifo < AOUT_MAX_FIFOS; i_fifo++ )
375 if ( p_aout->fifo[i_fifo].i_type == AOUT_EMPTY_FIFO)
380 if ( i_fifo == AOUT_MAX_FIFOS )
382 intf_ErrMsg("aout error: no empty fifo available");
383 vlc_mutex_unlock( &p_aout->fifos_lock );
387 /* Initialize the new fifo structure */
388 switch ( p_aout->fifo[i_fifo].i_type = p_fifo->i_type )
390 case AOUT_INTF_MONO_FIFO:
391 case AOUT_INTF_STEREO_FIFO:
392 p_aout->fifo[i_fifo].b_die = 0;
394 p_aout->fifo[i_fifo].i_channels = p_fifo->i_channels;
395 p_aout->fifo[i_fifo].b_stereo = p_fifo->b_stereo;
396 p_aout->fifo[i_fifo].l_rate = p_fifo->l_rate;
398 p_aout->fifo[i_fifo].buffer = p_fifo->buffer;
400 p_aout->fifo[i_fifo].l_unit = 0;
401 InitializeIncrement( &p_aout->fifo[i_fifo].unit_increment, p_fifo->l_rate, p_aout->l_rate );
402 p_aout->fifo[i_fifo].l_units = p_fifo->l_units;
405 case AOUT_ADEC_MONO_FIFO:
406 case AOUT_ADEC_STEREO_FIFO:
407 p_aout->fifo[i_fifo].b_die = 0;
409 p_aout->fifo[i_fifo].i_channels = p_fifo->i_channels;
410 p_aout->fifo[i_fifo].b_stereo = p_fifo->b_stereo;
411 p_aout->fifo[i_fifo].l_rate = p_fifo->l_rate;
413 p_aout->fifo[i_fifo].l_frame_size = p_fifo->l_frame_size;
414 /* Allocate the memory needed to store the audio frames. As the
415 * fifo is a rotative fifo, we must be able to find out whether the
416 * fifo is full or empty, that's why we must in fact allocate memory
417 * for (AOUT_FIFO_SIZE+1) audio frames. */
418 if ( (p_aout->fifo[i_fifo].buffer = malloc( sizeof(s16)*(AOUT_FIFO_SIZE+1)*p_fifo->l_frame_size )) == NULL )
420 intf_ErrMsg("aout error: not enough memory to create the frames buffer");
421 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO;
422 vlc_mutex_unlock( &p_aout->fifos_lock );
426 /* Allocate the memory needed to store the dates of the frames */
427 if ( (p_aout->fifo[i_fifo].date = (mtime_t *)malloc( sizeof(mtime_t)*(AOUT_FIFO_SIZE+1) )) == NULL )
429 intf_ErrMsg("aout error: not enough memory to create the dates buffer");
430 free( p_aout->fifo[i_fifo].buffer );
431 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO;
432 vlc_mutex_unlock( &p_aout->fifos_lock );
436 /* Set the fifo's buffer as empty (the first frame that is to be
437 * played is also the first frame that is not to be played) */
438 p_aout->fifo[i_fifo].l_start_frame = 0;
439 /* p_aout->fifo[i_fifo].l_next_frame = 0; */
440 p_aout->fifo[i_fifo].l_end_frame = 0;
442 /* Waiting for the audio decoder to compute enough frames to work
443 * out the fifo's current rate (as soon as the decoder has decoded
444 * enough frames, the members of the fifo structure that are not
445 * initialized now will be calculated) */
446 p_aout->fifo[i_fifo].b_start_frame = 0;
447 p_aout->fifo[i_fifo].b_next_frame = 0;
451 intf_ErrMsg("aout error: unknown fifo type (%i)", p_aout->fifo[i_fifo].i_type);
452 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO;
453 vlc_mutex_unlock( &p_aout->fifos_lock );
457 /* Release the fifos lock */
458 vlc_mutex_unlock( &p_aout->fifos_lock );
460 /* Return the pointer to the fifo structure */
461 intf_DbgMsg("aout debug: audio output fifo (%p) allocated", &p_aout->fifo[i_fifo]);
462 return( &p_aout->fifo[i_fifo] );
465 /*****************************************************************************
467 *****************************************************************************/
468 void aout_DestroyFifo( aout_fifo_t * p_fifo )
470 intf_DbgMsg("aout debug: requesting destruction of audio output fifo (%p)", p_fifo);
474 /* Here are the local macros */
476 #define UPDATE_INCREMENT( increment, integer ) \
477 if ( ((increment).l_remainder += (increment).l_euclidean_remainder) >= 0 )\
479 (integer) += (increment).l_euclidean_integer + 1; \
480 (increment).l_remainder -= (increment).l_euclidean_denominator; \
484 (integer) += (increment).l_euclidean_integer; \
487 /* Following functions are local */
489 /*****************************************************************************
491 *****************************************************************************/
492 static __inline__ int NextFrame( aout_thread_t * p_aout, aout_fifo_t * p_fifo, mtime_t aout_date )
494 long l_units, l_rate;
496 /* We take the lock */
497 vlc_mutex_lock( &p_fifo->data_lock );
499 /* Are we looking for a dated start frame ? */
500 if ( !p_fifo->b_start_frame )
502 while ( p_fifo->l_start_frame != p_fifo->l_end_frame )
504 if ( p_fifo->date[p_fifo->l_start_frame] != LAST_MDATE )
506 p_fifo->b_start_frame = 1;
507 p_fifo->l_next_frame = (p_fifo->l_start_frame + 1) & AOUT_FIFO_SIZE;
508 p_fifo->l_unit = p_fifo->l_start_frame * (p_fifo->l_frame_size >> (p_fifo->b_stereo));
511 p_fifo->l_start_frame = (p_fifo->l_start_frame + 1) & AOUT_FIFO_SIZE;
514 if ( p_fifo->l_start_frame == p_fifo->l_end_frame )
516 vlc_mutex_unlock( &p_fifo->data_lock );
521 /* We are looking for the next dated frame */
522 /* FIXME : is the output fifo full ?? */
523 while ( !p_fifo->b_next_frame )
525 while ( p_fifo->l_next_frame != p_fifo->l_end_frame )
527 if ( p_fifo->date[p_fifo->l_next_frame] != LAST_MDATE )
529 p_fifo->b_next_frame = 1;
532 p_fifo->l_next_frame = (p_fifo->l_next_frame + 1) & AOUT_FIFO_SIZE;
535 while ( p_fifo->l_next_frame == p_fifo->l_end_frame )
537 vlc_cond_wait( &p_fifo->data_wait, &p_fifo->data_lock );
540 vlc_mutex_unlock( &p_fifo->data_lock );
546 l_units = ((p_fifo->l_next_frame - p_fifo->l_start_frame) & AOUT_FIFO_SIZE) * (p_fifo->l_frame_size >> (p_fifo->b_stereo));
548 l_rate = p_fifo->l_rate + ((aout_date - p_fifo->date[p_fifo->l_start_frame]) / 256);
549 intf_DbgMsg( "aout debug: %lli (%li);", aout_date - p_fifo->date[p_fifo->l_start_frame], l_rate );
551 InitializeIncrement( &p_fifo->unit_increment, l_rate, p_aout->l_rate );
553 p_fifo->l_units = (((l_units - (p_fifo->l_unit -
554 (p_fifo->l_start_frame * (p_fifo->l_frame_size >> (p_fifo->b_stereo)))))
555 * p_aout->l_rate) / l_rate) + 1;
557 /* We release the lock before leaving */
558 vlc_mutex_unlock( &p_fifo->data_lock );
562 void aout_Thread_S8_Mono( aout_thread_t * p_aout )
566 void aout_Thread_S8_Stereo( aout_thread_t * p_aout )
570 void aout_Thread_U8_Mono( aout_thread_t * p_aout )
573 long l_buffer, l_buffer_limit;
574 long l_units, l_bytes;
576 intf_DbgMsg("adec debug: running audio output U8_M_thread (%p) (pid == %i)", p_aout, getpid());
578 /* As the s32_buffer was created with calloc(), we don't have to set this
579 * memory to zero and we can immediately jump into the thread's loop */
580 while ( !p_aout->b_die )
582 vlc_mutex_lock( &p_aout->fifos_lock );
583 for ( i_fifo = 0; i_fifo < AOUT_MAX_FIFOS; i_fifo++ )
585 switch ( p_aout->fifo[i_fifo].i_type )
587 case AOUT_EMPTY_FIFO:
590 case AOUT_INTF_MONO_FIFO:
591 if ( p_aout->fifo[i_fifo].l_units > p_aout->l_units )
594 while ( l_buffer < (p_aout->l_units) ) /* p_aout->b_stereo == 0 */
596 p_aout->s32_buffer[l_buffer++] +=
597 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
598 p_aout->s32_buffer[l_buffer++] +=
599 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
600 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
602 p_aout->fifo[i_fifo].l_units -= p_aout->l_units;
607 while ( l_buffer < (p_aout->fifo[i_fifo].l_units) ) /* p_aout->b_stereo == 0 */
609 p_aout->s32_buffer[l_buffer++] +=
610 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
611 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
613 free( p_aout->fifo[i_fifo].buffer ); /* !! */
614 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
615 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]); /* !! */
619 case AOUT_INTF_STEREO_FIFO:
620 if ( p_aout->fifo[i_fifo].l_units > p_aout->l_units )
623 while ( l_buffer < (p_aout->l_units) ) /* p_aout->b_stereo == 0 */
625 /* I mix half left - half right */
626 p_aout->s32_buffer[l_buffer++] +=
627 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit] ) / 2 +
628 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit+1] ) / 2;
629 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
631 p_aout->fifo[i_fifo].l_units -= p_aout->l_units;
636 while ( l_buffer < (p_aout->fifo[i_fifo].l_units) ) /* p_aout->b_stereo == 0 */
638 /* I mix half left - half right */
639 p_aout->s32_buffer[l_buffer++] +=
640 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit] ) / 2 +
641 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit+1] ) / 2;
642 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
644 free( p_aout->fifo[i_fifo].buffer ); /* !! */
645 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
646 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]); /* !! */
650 case AOUT_ADEC_MONO_FIFO:
651 if ( p_aout->fifo[i_fifo].b_die )
653 free( p_aout->fifo[i_fifo].buffer );
654 free( p_aout->fifo[i_fifo].date );
655 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
656 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]);
660 l_units = p_aout->l_units;
662 while ( l_units > 0 )
664 if ( !p_aout->fifo[i_fifo].b_next_frame )
666 if ( NextFrame(p_aout, &p_aout->fifo[i_fifo], p_aout->date + ((((mtime_t)(l_buffer >> 1)) * 1000000) / ((mtime_t)p_aout->l_rate))) )
672 if ( p_aout->fifo[i_fifo].l_units > l_units )
674 l_buffer_limit = p_aout->l_units; /* p_aout->b_stereo == 0 */
675 while ( l_buffer < l_buffer_limit )
677 p_aout->s32_buffer[l_buffer++] +=
678 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
680 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
681 if ( p_aout->fifo[i_fifo].l_unit >= /* p_aout->fifo[i_fifo].b_stereo == 0 */
682 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 0)) )
684 p_aout->fifo[i_fifo].l_unit -= /* p_aout->fifo[i_fifo].b_stereo == 0 */
685 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 0));
688 p_aout->fifo[i_fifo].l_units -= l_units;
693 l_buffer_limit = l_buffer + (p_aout->fifo[i_fifo].l_units);
694 /* p_aout->b_stereo == 0 */
695 while ( l_buffer < l_buffer_limit )
697 p_aout->s32_buffer[l_buffer++] +=
698 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
700 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
701 if ( p_aout->fifo[i_fifo].l_unit >= /* p_aout->fifo[i_fifo].b_stereo == 0 */
702 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 0)) )
704 p_aout->fifo[i_fifo].l_unit -= /* p_aout->fifo[i_fifo].b_stereo == 0 */
705 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 0));
708 l_units -= p_aout->fifo[i_fifo].l_units;
710 vlc_mutex_lock( &p_aout->fifo[i_fifo].data_lock );
711 p_aout->fifo[i_fifo].l_start_frame = p_aout->fifo[i_fifo].l_next_frame;
712 vlc_cond_signal( &p_aout->fifo[i_fifo].data_wait );
713 vlc_mutex_unlock( &p_aout->fifo[i_fifo].data_lock );
715 /* p_aout->fifo[i_fifo].b_start_frame = 1; */
716 p_aout->fifo[i_fifo].l_next_frame += 1;
717 p_aout->fifo[i_fifo].l_next_frame &= AOUT_FIFO_SIZE;
718 p_aout->fifo[i_fifo].b_next_frame = 0;
723 case AOUT_ADEC_STEREO_FIFO:
724 if ( p_aout->fifo[i_fifo].b_die )
726 free( p_aout->fifo[i_fifo].buffer );
727 free( p_aout->fifo[i_fifo].date );
728 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
729 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]);
733 l_units = p_aout->l_units;
735 while ( l_units > 0 )
737 if ( !p_aout->fifo[i_fifo].b_next_frame )
739 if ( NextFrame(p_aout, &p_aout->fifo[i_fifo], p_aout->date + ((((mtime_t)(l_buffer >> 1)) * 1000000) / ((mtime_t)p_aout->l_rate))) )
745 if ( p_aout->fifo[i_fifo].l_units > l_units )
747 l_buffer_limit = p_aout->l_units; /* p_aout->b_stereo == 0 */
748 while ( l_buffer < l_buffer_limit )
750 /* I mix half left - half right */
751 p_aout->s32_buffer[l_buffer++] +=
752 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit] ) / 2 +
753 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit+1] ) / 2;
755 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
756 if ( p_aout->fifo[i_fifo].l_unit >= /* p_aout->fifo[i_fifo].b_stereo == 1 */
757 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 1)) )
759 p_aout->fifo[i_fifo].l_unit -= /* p_aout->fifo[i_fifo].b_stereo == 1 */
760 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 1));
763 p_aout->fifo[i_fifo].l_units -= l_units;
768 l_buffer_limit = l_buffer + (p_aout->fifo[i_fifo].l_units);
769 /* p_aout->b_stereo == 0 */
770 while ( l_buffer < l_buffer_limit )
772 /* I mix half left - half right */
773 p_aout->s32_buffer[l_buffer++] +=
774 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit] ) / 2 +
775 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit+1] ) / 2;
777 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
778 if ( p_aout->fifo[i_fifo].l_unit >= /* p_aout->fifo[i_fifo].b_stereo == 1 */
779 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 1)) )
781 p_aout->fifo[i_fifo].l_unit -= /* p_aout->fifo[i_fifo].b_stereo == 1 */
782 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 1));
785 l_units -= p_aout->fifo[i_fifo].l_units;
787 vlc_mutex_lock( &p_aout->fifo[i_fifo].data_lock );
788 p_aout->fifo[i_fifo].l_start_frame = p_aout->fifo[i_fifo].l_next_frame;
789 vlc_cond_signal( &p_aout->fifo[i_fifo].data_wait );
790 vlc_mutex_unlock( &p_aout->fifo[i_fifo].data_lock );
792 /* p_aout->fifo[i_fifo].b_start_frame = 1; */
793 p_aout->fifo[i_fifo].l_next_frame += 1;
794 p_aout->fifo[i_fifo].l_next_frame &= AOUT_FIFO_SIZE;
795 p_aout->fifo[i_fifo].b_next_frame = 0;
801 intf_DbgMsg("aout debug: unknown fifo type (%i)", p_aout->fifo[i_fifo].i_type);
805 vlc_mutex_unlock( &p_aout->fifos_lock );
807 l_buffer_limit = p_aout->l_units; /* p_aout->b_stereo == 0 */
809 for ( l_buffer = 0; l_buffer < l_buffer_limit; l_buffer++ )
811 ((u8 *)p_aout->buffer)[l_buffer] = (u8)( ( (p_aout->s32_buffer[l_buffer] / AOUT_MAX_FIFOS / 256 ) + 128 ) * p_aout->vol / 256 );
812 p_aout->s32_buffer[l_buffer] = 0;
814 l_bytes = p_aout->p_sys_getbufinfo( p_aout, l_buffer_limit );
815 p_aout->date = mdate() + ((((mtime_t)(l_bytes / 1 )) * 1000000) / ((mtime_t)p_aout->l_rate)); /* sizeof(u8) << (p_aout->b_stereo) == 1 */
816 p_aout->p_sys_playsamples( p_aout, (byte_t *)p_aout->buffer, l_buffer_limit * sizeof(u8) );
817 if ( l_bytes > (l_buffer_limit * sizeof(u8) * 2) ) /* There are 2 channels (left & right) */
819 msleep( p_aout->l_msleep );
823 vlc_mutex_lock( &p_aout->fifos_lock );
824 for ( i_fifo = 0; i_fifo < AOUT_MAX_FIFOS; i_fifo++ )
826 switch ( p_aout->fifo[i_fifo].i_type )
828 case AOUT_EMPTY_FIFO:
831 case AOUT_INTF_MONO_FIFO:
832 case AOUT_INTF_STEREO_FIFO:
833 free( p_aout->fifo[i_fifo].buffer ); /* !! */
834 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
835 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]);
838 case AOUT_ADEC_MONO_FIFO:
839 case AOUT_ADEC_STEREO_FIFO:
840 free( p_aout->fifo[i_fifo].buffer );
841 free( p_aout->fifo[i_fifo].date );
842 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
843 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]);
850 vlc_mutex_unlock( &p_aout->fifos_lock );
855 void aout_Thread_U8_Stereo( aout_thread_t * p_aout )
858 long l_buffer, l_buffer_limit;
859 long l_units, l_bytes;
861 intf_DbgMsg("adec debug: running audio output U8_S_thread (%p) (pid == %i)", p_aout, getpid());
863 /* As the s32_buffer was created with calloc(), we don't have to set this
864 * memory to zero and we can immediately jump into the thread's loop */
865 while ( !p_aout->b_die )
867 vlc_mutex_lock( &p_aout->fifos_lock );
868 for ( i_fifo = 0; i_fifo < AOUT_MAX_FIFOS; i_fifo++ )
870 switch ( p_aout->fifo[i_fifo].i_type )
872 case AOUT_EMPTY_FIFO:
875 case AOUT_INTF_MONO_FIFO:
876 if ( p_aout->fifo[i_fifo].l_units > p_aout->l_units )
879 while ( l_buffer < (p_aout->l_units << 1) ) /* p_aout->b_stereo == 1 */
881 p_aout->s32_buffer[l_buffer++] +=
882 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
883 p_aout->s32_buffer[l_buffer++] +=
884 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
885 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
887 p_aout->fifo[i_fifo].l_units -= p_aout->l_units;
892 while ( l_buffer < (p_aout->fifo[i_fifo].l_units << 1) ) /* p_aout->b_stereo == 1 */
894 p_aout->s32_buffer[l_buffer++] +=
895 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
896 p_aout->s32_buffer[l_buffer++] +=
897 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
898 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
900 free( p_aout->fifo[i_fifo].buffer ); /* !! */
901 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
902 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]); /* !! */
906 case AOUT_INTF_STEREO_FIFO:
907 if ( p_aout->fifo[i_fifo].l_units > p_aout->l_units )
910 while ( l_buffer < (p_aout->l_units << 1) ) /* p_aout->b_stereo == 1 */
912 p_aout->s32_buffer[l_buffer++] +=
913 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit] );
914 p_aout->s32_buffer[l_buffer++] +=
915 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit+1] );
916 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
918 p_aout->fifo[i_fifo].l_units -= p_aout->l_units;
923 while ( l_buffer < (p_aout->fifo[i_fifo].l_units << 1) ) /* p_aout->b_stereo == 1 */
925 p_aout->s32_buffer[l_buffer++] +=
926 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit] );
927 p_aout->s32_buffer[l_buffer++] +=
928 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit+1] );
929 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
931 free( p_aout->fifo[i_fifo].buffer ); /* !! */
932 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
933 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]); /* !! */
937 case AOUT_ADEC_MONO_FIFO:
938 if ( p_aout->fifo[i_fifo].b_die )
940 free( p_aout->fifo[i_fifo].buffer );
941 free( p_aout->fifo[i_fifo].date );
942 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
943 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]);
947 l_units = p_aout->l_units;
949 while ( l_units > 0 )
951 if ( !p_aout->fifo[i_fifo].b_next_frame )
953 if ( NextFrame(p_aout, &p_aout->fifo[i_fifo], p_aout->date + ((((mtime_t)(l_buffer >> 1)) * 1000000) / ((mtime_t)p_aout->l_rate))) )
959 if ( p_aout->fifo[i_fifo].l_units > l_units )
961 l_buffer_limit = p_aout->l_units << 1; /* p_aout->b_stereo == 1 */
962 while ( l_buffer < l_buffer_limit )
964 p_aout->s32_buffer[l_buffer++] +=
965 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
966 p_aout->s32_buffer[l_buffer++] +=
967 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
969 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
970 if ( p_aout->fifo[i_fifo].l_unit >= /* p_aout->fifo[i_fifo].b_stereo == 0 */
971 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 0)) )
973 p_aout->fifo[i_fifo].l_unit -= /* p_aout->fifo[i_fifo].b_stereo == 0 */
974 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 0));
977 p_aout->fifo[i_fifo].l_units -= l_units;
982 l_buffer_limit = l_buffer + (p_aout->fifo[i_fifo].l_units << 1);
983 /* p_aout->b_stereo == 1 */
984 while ( l_buffer < l_buffer_limit )
986 p_aout->s32_buffer[l_buffer++] +=
987 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
988 p_aout->s32_buffer[l_buffer++] +=
989 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
991 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
992 if ( p_aout->fifo[i_fifo].l_unit >= /* p_aout->fifo[i_fifo].b_stereo == 0 */
993 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 0)) )
995 p_aout->fifo[i_fifo].l_unit -= /* p_aout->fifo[i_fifo].b_stereo == 0 */
996 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 0));
999 l_units -= p_aout->fifo[i_fifo].l_units;
1001 vlc_mutex_lock( &p_aout->fifo[i_fifo].data_lock );
1002 p_aout->fifo[i_fifo].l_start_frame = p_aout->fifo[i_fifo].l_next_frame;
1003 vlc_cond_signal( &p_aout->fifo[i_fifo].data_wait );
1004 vlc_mutex_unlock( &p_aout->fifo[i_fifo].data_lock );
1006 /* p_aout->fifo[i_fifo].b_start_frame = 1; */
1007 p_aout->fifo[i_fifo].l_next_frame += 1;
1008 p_aout->fifo[i_fifo].l_next_frame &= AOUT_FIFO_SIZE;
1009 p_aout->fifo[i_fifo].b_next_frame = 0;
1014 case AOUT_ADEC_STEREO_FIFO:
1015 if ( p_aout->fifo[i_fifo].b_die )
1017 free( p_aout->fifo[i_fifo].buffer );
1018 free( p_aout->fifo[i_fifo].date );
1019 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
1020 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]);
1024 l_units = p_aout->l_units;
1026 while ( l_units > 0 )
1028 if ( !p_aout->fifo[i_fifo].b_next_frame )
1030 if ( NextFrame(p_aout, &p_aout->fifo[i_fifo], p_aout->date + ((((mtime_t)(l_buffer >> 1)) * 1000000) / ((mtime_t)p_aout->l_rate))) )
1036 if ( p_aout->fifo[i_fifo].l_units > l_units )
1038 l_buffer_limit = p_aout->l_units << 1; /* p_aout->b_stereo == 1 */
1039 while ( l_buffer < l_buffer_limit )
1041 p_aout->s32_buffer[l_buffer++] +=
1042 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit] );
1043 p_aout->s32_buffer[l_buffer++] +=
1044 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit+1] );
1046 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
1047 if ( p_aout->fifo[i_fifo].l_unit >= /* p_aout->fifo[i_fifo].b_stereo == 1 */
1048 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 1)) )
1050 p_aout->fifo[i_fifo].l_unit -= /* p_aout->fifo[i_fifo].b_stereo == 1 */
1051 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 1));
1054 p_aout->fifo[i_fifo].l_units -= l_units;
1059 l_buffer_limit = l_buffer + (p_aout->fifo[i_fifo].l_units << 1);
1060 /* p_aout->b_stereo == 1 */
1061 while ( l_buffer < l_buffer_limit )
1063 p_aout->s32_buffer[l_buffer++] +=
1064 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit] );
1065 p_aout->s32_buffer[l_buffer++] +=
1066 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit+1] );
1068 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
1069 if ( p_aout->fifo[i_fifo].l_unit >= /* p_aout->fifo[i_fifo].b_stereo == 1 */
1070 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 1)) )
1072 p_aout->fifo[i_fifo].l_unit -= /* p_aout->fifo[i_fifo].b_stereo == 1 */
1073 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 1));
1076 l_units -= p_aout->fifo[i_fifo].l_units;
1078 vlc_mutex_lock( &p_aout->fifo[i_fifo].data_lock );
1079 p_aout->fifo[i_fifo].l_start_frame = p_aout->fifo[i_fifo].l_next_frame;
1080 vlc_cond_signal( &p_aout->fifo[i_fifo].data_wait );
1081 vlc_mutex_unlock( &p_aout->fifo[i_fifo].data_lock );
1083 /* p_aout->fifo[i_fifo].b_start_frame = 1; */
1084 p_aout->fifo[i_fifo].l_next_frame += 1;
1085 p_aout->fifo[i_fifo].l_next_frame &= AOUT_FIFO_SIZE;
1086 p_aout->fifo[i_fifo].b_next_frame = 0;
1092 intf_DbgMsg("aout debug: unknown fifo type (%i)", p_aout->fifo[i_fifo].i_type);
1096 vlc_mutex_unlock( &p_aout->fifos_lock );
1098 l_buffer_limit = p_aout->l_units << 1 ; /* p_aout->b_stereo == 1 */
1100 for ( l_buffer = 0; l_buffer < l_buffer_limit; l_buffer++ )
1102 ((u8 *)p_aout->buffer)[l_buffer] = (u8)( ( (p_aout->s32_buffer[l_buffer] / AOUT_MAX_FIFOS / 256) + 128 ) * p_aout->vol / 256 );
1103 p_aout->s32_buffer[l_buffer] = 0;
1105 l_bytes = p_aout->p_sys_getbufinfo( p_aout, l_buffer_limit );
1106 p_aout->date = mdate() + ((((mtime_t)(l_bytes / 2 )) * 1000000) / ((mtime_t)p_aout->l_rate)); /* sizeof(u8) << (p_aout->b_stereo) == 2 */
1107 p_aout->p_sys_playsamples( p_aout, (byte_t *)p_aout->buffer, l_buffer_limit * sizeof(u8) );
1108 if ( l_bytes > (l_buffer_limit * sizeof(u8)) )
1110 msleep( p_aout->l_msleep );
1114 vlc_mutex_lock( &p_aout->fifos_lock );
1115 for ( i_fifo = 0; i_fifo < AOUT_MAX_FIFOS; i_fifo++ )
1117 switch ( p_aout->fifo[i_fifo].i_type )
1119 case AOUT_EMPTY_FIFO:
1122 case AOUT_INTF_MONO_FIFO:
1123 case AOUT_INTF_STEREO_FIFO:
1124 free( p_aout->fifo[i_fifo].buffer ); /* !! */
1125 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
1126 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]);
1129 case AOUT_ADEC_MONO_FIFO:
1130 case AOUT_ADEC_STEREO_FIFO:
1131 free( p_aout->fifo[i_fifo].buffer );
1132 free( p_aout->fifo[i_fifo].date );
1133 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
1134 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]);
1141 vlc_mutex_unlock( &p_aout->fifos_lock );
1145 void aout_Thread_S16_Mono( aout_thread_t * p_aout )
1149 void aout_Thread_S16_Stereo( aout_thread_t * p_aout )
1152 long l_buffer, l_buffer_limit;
1153 long l_units, l_bytes;
1155 intf_DbgMsg("adec debug: running audio output S16_S_thread (%p) (pid == %i)", p_aout, getpid());
1157 /* As the s32_buffer was created with calloc(), we don't have to set this
1158 * memory to zero and we can immediately jump into the thread's loop */
1159 while ( !p_aout->b_die )
1161 vlc_mutex_lock( &p_aout->fifos_lock );
1162 for ( i_fifo = 0; i_fifo < AOUT_MAX_FIFOS; i_fifo++ )
1164 switch ( p_aout->fifo[i_fifo].i_type )
1166 case AOUT_EMPTY_FIFO:
1169 case AOUT_INTF_MONO_FIFO:
1170 if ( p_aout->fifo[i_fifo].l_units > p_aout->l_units )
1173 while ( l_buffer < (p_aout->l_units << 1) ) /* p_aout->b_stereo == 1 */
1175 p_aout->s32_buffer[l_buffer++] +=
1176 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
1177 p_aout->s32_buffer[l_buffer++] +=
1178 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
1179 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
1181 p_aout->fifo[i_fifo].l_units -= p_aout->l_units;
1186 while ( l_buffer < (p_aout->fifo[i_fifo].l_units << 1) ) /* p_aout->b_stereo == 1 */
1188 p_aout->s32_buffer[l_buffer++] +=
1189 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
1190 p_aout->s32_buffer[l_buffer++] +=
1191 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
1192 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
1194 free( p_aout->fifo[i_fifo].buffer ); /* !! */
1195 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
1196 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]); /* !! */
1200 case AOUT_INTF_STEREO_FIFO:
1201 if ( p_aout->fifo[i_fifo].l_units > p_aout->l_units )
1204 while ( l_buffer < (p_aout->l_units << 1) ) /* p_aout->b_stereo == 1 */
1206 p_aout->s32_buffer[l_buffer++] +=
1207 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit] );
1208 p_aout->s32_buffer[l_buffer++] +=
1209 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit+1] );
1210 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
1212 p_aout->fifo[i_fifo].l_units -= p_aout->l_units;
1217 while ( l_buffer < (p_aout->fifo[i_fifo].l_units << 1) ) /* p_aout->b_stereo == 1 */
1219 p_aout->s32_buffer[l_buffer++] +=
1220 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit] );
1221 p_aout->s32_buffer[l_buffer++] +=
1222 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit+1] );
1223 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
1225 free( p_aout->fifo[i_fifo].buffer ); /* !! */
1226 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
1227 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]); /* !! */
1231 case AOUT_ADEC_MONO_FIFO:
1232 if ( p_aout->fifo[i_fifo].b_die )
1234 free( p_aout->fifo[i_fifo].buffer );
1235 free( p_aout->fifo[i_fifo].date );
1236 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
1237 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]);
1241 l_units = p_aout->l_units;
1243 while ( l_units > 0 )
1245 if ( !p_aout->fifo[i_fifo].b_next_frame )
1247 if ( NextFrame(p_aout, &p_aout->fifo[i_fifo], p_aout->date + ((((mtime_t)(l_buffer >> 1)) * 1000000) / ((mtime_t)p_aout->l_rate))) )
1253 if ( p_aout->fifo[i_fifo].l_units > l_units )
1255 l_buffer_limit = p_aout->l_units << 1; /* p_aout->b_stereo == 1 */
1256 while ( l_buffer < l_buffer_limit )
1258 p_aout->s32_buffer[l_buffer++] +=
1259 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
1260 p_aout->s32_buffer[l_buffer++] +=
1261 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
1263 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
1264 if ( p_aout->fifo[i_fifo].l_unit >= /* p_aout->fifo[i_fifo].b_stereo == 0 */
1265 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 0)) )
1267 p_aout->fifo[i_fifo].l_unit -= /* p_aout->fifo[i_fifo].b_stereo == 0 */
1268 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 0));
1271 p_aout->fifo[i_fifo].l_units -= l_units;
1276 l_buffer_limit = l_buffer + (p_aout->fifo[i_fifo].l_units << 1);
1277 /* p_aout->b_stereo == 1 */
1278 while ( l_buffer < l_buffer_limit )
1280 p_aout->s32_buffer[l_buffer++] +=
1281 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
1282 p_aout->s32_buffer[l_buffer++] +=
1283 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
1285 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
1286 if ( p_aout->fifo[i_fifo].l_unit >= /* p_aout->fifo[i_fifo].b_stereo == 0 */
1287 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 0)) )
1289 p_aout->fifo[i_fifo].l_unit -= /* p_aout->fifo[i_fifo].b_stereo == 0 */
1290 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 0));
1293 l_units -= p_aout->fifo[i_fifo].l_units;
1295 vlc_mutex_lock( &p_aout->fifo[i_fifo].data_lock );
1296 p_aout->fifo[i_fifo].l_start_frame = p_aout->fifo[i_fifo].l_next_frame;
1297 vlc_cond_signal( &p_aout->fifo[i_fifo].data_wait );
1298 vlc_mutex_unlock( &p_aout->fifo[i_fifo].data_lock );
1300 /* p_aout->fifo[i_fifo].b_start_frame = 1; */
1301 p_aout->fifo[i_fifo].l_next_frame += 1;
1302 p_aout->fifo[i_fifo].l_next_frame &= AOUT_FIFO_SIZE;
1303 p_aout->fifo[i_fifo].b_next_frame = 0;
1308 case AOUT_ADEC_STEREO_FIFO:
1309 if ( p_aout->fifo[i_fifo].b_die )
1311 free( p_aout->fifo[i_fifo].buffer );
1312 free( p_aout->fifo[i_fifo].date );
1313 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
1314 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]);
1318 l_units = p_aout->l_units;
1320 while ( l_units > 0 )
1322 if ( !p_aout->fifo[i_fifo].b_next_frame )
1324 if ( NextFrame(p_aout, &p_aout->fifo[i_fifo], p_aout->date + ((((mtime_t)(l_buffer >> 1)) * 1000000) / ((mtime_t)p_aout->l_rate))) )
1330 if ( p_aout->fifo[i_fifo].l_units > l_units )
1332 l_buffer_limit = p_aout->l_units << 1; /* p_aout->b_stereo == 1 */
1333 while ( l_buffer < l_buffer_limit )
1335 p_aout->s32_buffer[l_buffer++] +=
1336 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit] );
1337 p_aout->s32_buffer[l_buffer++] +=
1338 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit+1] );
1340 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
1341 if ( p_aout->fifo[i_fifo].l_unit >= /* p_aout->fifo[i_fifo].b_stereo == 1 */
1342 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 1)) )
1344 p_aout->fifo[i_fifo].l_unit -= /* p_aout->fifo[i_fifo].b_stereo == 1 */
1345 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 1));
1348 p_aout->fifo[i_fifo].l_units -= l_units;
1353 l_buffer_limit = l_buffer + (p_aout->fifo[i_fifo].l_units << 1);
1354 /* p_aout->b_stereo == 1 */
1355 while ( l_buffer < l_buffer_limit )
1357 p_aout->s32_buffer[l_buffer++] +=
1358 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit] );
1359 p_aout->s32_buffer[l_buffer++] +=
1360 (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit+1] );
1362 UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
1363 if ( p_aout->fifo[i_fifo].l_unit >= /* p_aout->fifo[i_fifo].b_stereo == 1 */
1364 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 1)) )
1366 p_aout->fifo[i_fifo].l_unit -= /* p_aout->fifo[i_fifo].b_stereo == 1 */
1367 ((AOUT_FIFO_SIZE + 1) * (p_aout->fifo[i_fifo].l_frame_size >> 1));
1370 l_units -= p_aout->fifo[i_fifo].l_units;
1372 vlc_mutex_lock( &p_aout->fifo[i_fifo].data_lock );
1373 p_aout->fifo[i_fifo].l_start_frame = p_aout->fifo[i_fifo].l_next_frame;
1374 vlc_cond_signal( &p_aout->fifo[i_fifo].data_wait );
1375 vlc_mutex_unlock( &p_aout->fifo[i_fifo].data_lock );
1377 /* p_aout->fifo[i_fifo].b_start_frame = 1; */
1378 p_aout->fifo[i_fifo].l_next_frame += 1;
1379 p_aout->fifo[i_fifo].l_next_frame &= AOUT_FIFO_SIZE;
1380 p_aout->fifo[i_fifo].b_next_frame = 0;
1386 intf_DbgMsg("aout debug: unknown fifo type (%i)", p_aout->fifo[i_fifo].i_type);
1390 vlc_mutex_unlock( &p_aout->fifos_lock );
1392 l_buffer_limit = p_aout->l_units << 1; /* p_aout->b_stereo == 1 */
1394 for ( l_buffer = 0; l_buffer < l_buffer_limit; l_buffer++ )
1396 ((s16 *)p_aout->buffer)[l_buffer] = (s16)( ( p_aout->s32_buffer[l_buffer] / AOUT_MAX_FIFOS ) * p_aout->vol / 256 ) ;
1397 p_aout->s32_buffer[l_buffer] = 0;
1400 l_bytes = p_aout->p_sys_getbufinfo( p_aout, l_buffer_limit );
1401 p_aout->date = mdate() + ((((mtime_t)(l_bytes / 4)) * 1000000) / ((mtime_t)p_aout->l_rate)); /* sizeof(s16) << (p_aout->b_stereo) == 4 */
1402 p_aout->p_sys_playsamples( p_aout, (byte_t *)p_aout->buffer, l_buffer_limit * sizeof(s16) );
1403 if ( l_bytes > (l_buffer_limit * sizeof(s16)) )
1405 msleep( p_aout->l_msleep );
1409 vlc_mutex_lock( &p_aout->fifos_lock );
1410 for ( i_fifo = 0; i_fifo < AOUT_MAX_FIFOS; i_fifo++ )
1412 switch ( p_aout->fifo[i_fifo].i_type )
1414 case AOUT_EMPTY_FIFO:
1417 case AOUT_INTF_MONO_FIFO:
1418 case AOUT_INTF_STEREO_FIFO:
1419 free( p_aout->fifo[i_fifo].buffer ); /* !! */
1420 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
1421 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]);
1424 case AOUT_ADEC_MONO_FIFO:
1425 case AOUT_ADEC_STEREO_FIFO:
1426 free( p_aout->fifo[i_fifo].buffer );
1427 free( p_aout->fifo[i_fifo].date );
1428 p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
1429 intf_DbgMsg("aout debug: audio output fifo (%p) destroyed", &p_aout->fifo[i_fifo]);
1436 vlc_mutex_unlock( &p_aout->fifos_lock );
1439 void aout_Thread_U16_Mono( aout_thread_t * p_aout )
1443 void aout_Thread_U16_Stereo( aout_thread_t * p_aout )