-/******************************************************************************
+/*****************************************************************************
* audio_output.c : audio output thread
- * (c)1999 VideoLAN
- ******************************************************************************/
+ *****************************************************************************
+ * Copyright (C) 1999, 2000, 2001 VideoLAN
+ * $Id: audio_output.c,v 1.59 2001/05/01 04:18:18 sam Exp $
+ *
+ * Authors: Michel Kaempf <maxx@via.ecp.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ *****************************************************************************/
/* TODO:
*
* à chaque boucle
* = Utiliser des tables pour les gros calculs
* - Faire une structure différente pour intf/adec fifo
- * - Rajouter des vlc_cond_signal ?
*
*/
-/******************************************************************************
+/*****************************************************************************
* Preamble
- ******************************************************************************/
-#include <unistd.h>
+ *****************************************************************************/
+#include "defs.h"
-#include <sys/soundcard.h>
-#include <stdio.h> /* "intf_msg.h" */
-#include <stdlib.h> /* calloc(), malloc(), free() */
+#include <unistd.h> /* getpid() */
+#ifdef WIN32 /* getpid() for win32 is located in process.h */
+#include <process.h>
+#endif
+
+#include <stdio.h> /* "intf_msg.h" */
+#include <stdlib.h> /* calloc(), malloc(), free() */
-#include "common.h"
#include "config.h"
-#include "mtime.h" /* mtime_t, mdate(), msleep() */
-#include "vlc_thread.h"
+#include "common.h"
+#include "threads.h"
+#include "mtime.h" /* mtime_t, mdate(), msleep() */
+#include "modules.h"
-#include "intf_msg.h" /* intf_DbgMsg(), intf_ErrMsg() */
+#include "intf_msg.h" /* intf_DbgMsg(), intf_ErrMsg() */
#include "audio_output.h"
-#include "audio_dsp.h"
+#include "aout_common.h"
-/******************************************************************************
+#include "main.h"
+
+/*****************************************************************************
* Local prototypes
- ******************************************************************************/
-
-/* Creating as much aout_Thread functions as configurations is one solution,
- * examining the different cases in the Thread loop of an unique function is
- * another. I chose the first solution. */
-void aout_Thread_S8_Mono ( aout_thread_t * p_aout );
-void aout_Thread_U8_Mono ( aout_thread_t * p_aout );
-void aout_Thread_S16_Mono ( aout_thread_t * p_aout );
-void aout_Thread_U16_Mono ( aout_thread_t * p_aout );
-void aout_Thread_S8_Stereo ( aout_thread_t * p_aout );
-void aout_Thread_U8_Stereo ( aout_thread_t * p_aout );
-void aout_Thread_S16_Stereo ( aout_thread_t * p_aout );
-void aout_Thread_U16_Stereo ( aout_thread_t * p_aout );
-
-static __inline__ void InitializeIncrement( aout_increment_t * p_increment, long l_numerator, long l_denominator );
-static __inline__ int NextFrame( aout_thread_t * p_aout, aout_fifo_t * p_fifo/*, mtime_t aout_date*/ );
-
-/******************************************************************************
- * aout_Open
- ******************************************************************************/
-int aout_Open( aout_thread_t * p_aout )
+ *****************************************************************************/
+static int aout_SpawnThread( aout_thread_t * p_aout );
+
+/*****************************************************************************
+ * aout_CreateThread: initialize audio thread
+ *****************************************************************************/
+aout_thread_t *aout_CreateThread( int *pi_status )
{
- if ( aout_dspOpen( &p_aout->dsp ) )
+ aout_thread_t * p_aout; /* thread descriptor */
+#if 0
+ int i_status; /* thread status */
+#endif
+
+ /* Allocate descriptor */
+ p_aout = (aout_thread_t *) malloc( sizeof(aout_thread_t) );
+ if( p_aout == NULL )
{
- return( -1 );
+ return( NULL );
}
- if ( aout_dspReset( &p_aout->dsp ) )
+ /* Choose the best module */
+ p_aout->p_module = module_Need( MODULE_CAPABILITY_AOUT, NULL );
+
+ if( p_aout->p_module == NULL )
{
- aout_dspClose( &p_aout->dsp );
- return( -1 );
+ intf_ErrMsg( "aout error: no suitable aout module" );
+ free( p_aout );
+ return( NULL );
}
- if ( aout_dspSetFormat( &p_aout->dsp ) )
+#define aout_functions p_aout->p_module->p_functions->aout.functions.aout
+ p_aout->pf_open = aout_functions.pf_open;
+ p_aout->pf_setformat = aout_functions.pf_setformat;
+ p_aout->pf_getbufinfo = aout_functions.pf_getbufinfo;
+ p_aout->pf_play = aout_functions.pf_play;
+ p_aout->pf_close = aout_functions.pf_close;
+#undef aout_functions
+
+ /*
+ * Initialize audio device
+ */
+ if ( p_aout->pf_open( p_aout ) )
{
- aout_dspClose( &p_aout->dsp );
- return( -1 );
+ module_Unneed( p_aout->p_module );
+ free( p_aout );
+ return( NULL );
}
- if ( aout_dspSetChannels( &p_aout->dsp ) )
+ if( p_aout->l_rate == 0 )
{
- aout_dspClose( &p_aout->dsp );
- return( -1 );
+ intf_ErrMsg( "aout error: null sample rate" );
+ p_aout->pf_close( p_aout );
+ module_Unneed( p_aout->p_module );
+ free( p_aout );
+ return( NULL );
}
- if ( aout_dspSetRate( &p_aout->dsp ) )
+ /* special setting for ac3 pass-through mode */
+ if( main_GetIntVariable( AOUT_SPDIF_VAR, 0 ) )
{
- aout_dspClose( &p_aout->dsp );
- return( -1 );
+ p_aout->i_format = AOUT_FMT_AC3;
+ p_aout->i_channels = 1;
+ p_aout->l_rate = 48000;
}
- intf_DbgMsg("aout debug: audio device (%s) opened (format=%i, stereo=%i, rate=%li)\n",
- p_aout->dsp.psz_device,
- p_aout->dsp.i_format,
- p_aout->dsp.b_stereo, p_aout->dsp.l_rate);
+ /* FIXME: only works for i_channels == 1 or 2 ?? */
+ p_aout->b_stereo = ( p_aout->i_channels == 2 ) ? 1 : 0;
- return( 0 );
+ if ( p_aout->pf_setformat( p_aout ) )
+ {
+ p_aout->pf_close( p_aout );
+ module_Unneed( p_aout->p_module );
+ free( p_aout );
+ return( NULL );
+ }
+
+ /* Initialize the volume level */
+ p_aout->i_vol = VOLUME_DEFAULT;
+
+ /* FIXME: maybe it would be cleaner to change SpawnThread prototype
+ * see vout to handle status correctly ?? however, it is not critical since
+ * this thread is only called in main and all calls are blocking */
+ if( aout_SpawnThread( p_aout ) )
+ {
+ p_aout->pf_close( p_aout );
+ module_Unneed( p_aout->p_module );
+ free( p_aout );
+ return( NULL );
+ }
+
+ return( p_aout );
}
-/******************************************************************************
+/*****************************************************************************
* aout_SpawnThread
- ******************************************************************************/
-int aout_SpawnThread( aout_thread_t * p_aout )
+ *****************************************************************************/
+static int aout_SpawnThread( aout_thread_t * p_aout )
{
- int i_fifo;
- long l_bytes;
- s64 s64_numerator, s64_denominator;
- void * aout_thread = NULL;
-
- intf_DbgMsg("aout debug: spawning audio output thread (%p)\n", p_aout);
+ int i_fifo;
+ long l_bytes;
+ void * aout_thread = NULL;
/* We want the audio output thread to live */
p_aout->b_die = 0;
+ p_aout->b_active = 1;
/* Initialize the fifos lock */
vlc_mutex_init( &p_aout->fifos_lock );
/* Compute the size (in audio units) of the audio output buffer. Although
* AOUT_BUFFER_DURATION is given in microseconds, the output rate is given
* in Hz, that's why we need to divide by 10^6 microseconds (1 second) */
- p_aout->l_units = (long)( ((s64)p_aout->dsp.l_rate * AOUT_BUFFER_DURATION) / 1000000 );
+ p_aout->l_units = (long)( ((s64)p_aout->l_rate * AOUT_BUFFER_DURATION) / 1000000 );
+ p_aout->l_msleep = (long)( ((s64)p_aout->l_units * 1000000) / (s64)p_aout->l_rate );
/* Make aout_thread point to the right thread function, and compute the
* byte size of the audio output buffer */
- switch ( p_aout->dsp.b_stereo )
+ switch ( p_aout->i_channels )
{
- /* Audio output is mono */
- case 0:
- switch ( p_aout->dsp.i_format )
- {
- case AFMT_U8:
- l_bytes = 1 * sizeof(u8) * p_aout->l_units;
- aout_thread = (void *)aout_Thread_U8_Mono;
- break;
-
- case AFMT_S8:
- l_bytes = 1 * sizeof(s8) * p_aout->l_units;
- aout_thread = (void *)aout_Thread_S8_Mono;
- break;
-
- case AFMT_U16_LE:
- case AFMT_U16_BE:
- l_bytes = 1 * sizeof(u16) * p_aout->l_units;
- aout_thread = (void *)aout_Thread_U16_Mono;
- break;
-
- case AFMT_S16_LE:
- case AFMT_S16_BE:
- l_bytes = 1 * sizeof(s16) * p_aout->l_units;
- aout_thread = (void *)aout_Thread_S16_Mono;
- break;
-
- default:
- intf_ErrMsg("aout error: unknown audio output format (%i)\n",
- p_aout->dsp.i_format);
- return( -1 );
- }
+ /* Audio output is mono */
+ case 1:
+ switch ( p_aout->i_format )
+ {
+ case AOUT_FMT_U8:
+ intf_WarnMsg( 2, "aout info: unsigned 8 bits mono thread" );
+ l_bytes = 1 * sizeof(u8) * p_aout->l_units;
+ aout_thread = (void *)aout_U8MonoThread;
+ break;
+
+ case AOUT_FMT_S8:
+ intf_WarnMsg( 2, "aout info: signed 8 bits mono thread" );
+ l_bytes = 1 * sizeof(s8) * p_aout->l_units;
+ aout_thread = (void *)aout_S8MonoThread;
break;
- /* Audio output is stereo */
- case 1:
- switch ( p_aout->dsp.i_format )
- {
- case AFMT_U8:
- l_bytes = 2 * sizeof(u8) * p_aout->l_units;
- aout_thread = (void *)aout_Thread_U8_Stereo;
- break;
-
- case AFMT_S8:
- l_bytes = 2 * sizeof(s8) * p_aout->l_units;
- aout_thread = (void *)aout_Thread_S8_Stereo;
- break;
-
- case AFMT_U16_LE:
- case AFMT_U16_BE:
- l_bytes = 2 * sizeof(u16) * p_aout->l_units;
- aout_thread = (void *)aout_Thread_U16_Stereo;
- break;
-
- case AFMT_S16_LE:
- case AFMT_S16_BE:
- l_bytes = 2 * sizeof(s16) * p_aout->l_units;
- aout_thread = (void *)aout_Thread_S16_Stereo;
- break;
-
- default:
- intf_ErrMsg("aout error: unknown audio output format (%i)\n",
- p_aout->dsp.i_format);
- return( -1 );
- }
+ case AOUT_FMT_U16_LE:
+ case AOUT_FMT_U16_BE:
+ intf_WarnMsg( 2, "aout info: unsigned 16 bits mono thread" );
+ l_bytes = 1 * sizeof(u16) * p_aout->l_units;
+ aout_thread = (void *)aout_U16MonoThread;
break;
+ case AOUT_FMT_S16_LE:
+ case AOUT_FMT_S16_BE:
+ intf_WarnMsg( 2, "aout info: signed 16 bits mono thread" );
+ l_bytes = 1 * sizeof(s16) * p_aout->l_units;
+ aout_thread = (void *)aout_S16MonoThread;
+ break;
+ case AOUT_FMT_AC3:
+ intf_WarnMsg( 2, "aout info: ac3 pass-through thread" );
+ l_bytes = 0;
+ aout_thread = (void *)aout_SpdifThread;
+ break;
+
+ default:
+ intf_ErrMsg( "aout error: unknown audio output format (%i)",
+ p_aout->i_format );
+ return( -1 );
+ }
+ break;
+
+ /* Audio output is stereo */
+ case 2:
+ switch ( p_aout->i_format )
+ {
+ case AOUT_FMT_U8:
+ intf_WarnMsg( 2, "aout info: unsigned 8 bits stereo thread" );
+ l_bytes = 2 * sizeof(u8) * p_aout->l_units;
+ aout_thread = (void *)aout_U8StereoThread;
+ break;
+
+ case AOUT_FMT_S8:
+ intf_WarnMsg( 2, "aout info: signed 8 bits stereo thread" );
+ l_bytes = 2 * sizeof(s8) * p_aout->l_units;
+ aout_thread = (void *)aout_S8StereoThread;
+ break;
+
+ case AOUT_FMT_U16_LE:
+ case AOUT_FMT_U16_BE:
+ intf_WarnMsg( 2, "aout info: unsigned 16 bits stereo thread" );
+ l_bytes = 2 * sizeof(u16) * p_aout->l_units;
+ aout_thread = (void *)aout_U16StereoThread;
+ break;
+
+ case AOUT_FMT_S16_LE:
+ case AOUT_FMT_S16_BE:
+ intf_WarnMsg( 2, "aout info: signed 16 bits stereo thread" );
+ l_bytes = 2 * sizeof(s16) * p_aout->l_units;
+ aout_thread = (void *)aout_S16StereoThread;
+ break;
default:
- intf_ErrMsg("aout error: unknown number of audio channels (%i)\n",
- p_aout->dsp.b_stereo + 1);
+ intf_ErrMsg( "aout error: unknown audio output format %i",
+ p_aout->i_format );
return( -1 );
+ }
+ break;
+
+ default:
+ intf_ErrMsg( "aout error: unknown number of audio channels (%i)",
+ p_aout->i_channels );
+ return( -1 );
}
/* Allocate the memory needed by the audio output buffers, and set to zero
* the s32 buffer's memory */
- if ( (p_aout->buffer = malloc(l_bytes)) == NULL )
+ p_aout->buffer = malloc( l_bytes );
+ if ( p_aout->buffer == NULL )
{
- intf_ErrMsg("aout error: not enough memory to create the output buffer\n");
+ intf_ErrMsg( "aout error: cannot create output buffer" );
return( -1 );
}
- if ( (p_aout->s32_buffer = (s32 *)calloc(p_aout->l_units, sizeof(s32) << p_aout->dsp.b_stereo)) == NULL )
+
+ p_aout->s32_buffer = (s32 *)calloc( p_aout->l_units,
+ sizeof(s32) << ( p_aout->b_stereo ) );
+ if ( p_aout->s32_buffer == NULL )
{
- intf_ErrMsg("aout error: not enough memory to create the s32 output buffer\n");
+ intf_ErrMsg( "aout error: cannot create the s32 output buffer" );
free( p_aout->buffer );
return( -1 );
}
- /* Initialize the incremental structure that is used to work out the date
- * of the first audio unit in the output buffer */
- s64_numerator = (s64)p_aout->l_units * 1000000;
- s64_denominator = (s64)p_aout->dsp.l_rate;
-
- p_aout->date_increment.l_remainder = -(long)s64_denominator;
-
- p_aout->date_increment.l_euclidean_integer = 0;
- while ( s64_numerator >= s64_denominator )
- {
- p_aout->date_increment.l_euclidean_integer++;
- s64_numerator -= s64_denominator;
- }
-
- p_aout->date_increment.l_euclidean_remainder = (long)s64_numerator;
-
- p_aout->date_increment.l_euclidean_denominator = (long)s64_denominator;
-
- /* Before launching the thread, we try to predict the date of the first
- * audio unit in the first output buffer */
+ /* Rough estimate of the playing date */
p_aout->date = mdate();
/* Launch the thread */
- if ( vlc_thread_create( &p_aout->thread_id, "audio output", (vlc_thread_func)aout_thread, p_aout ) )
+ if ( vlc_thread_create( &p_aout->thread_id, "audio output",
+ (vlc_thread_func_t)aout_thread, p_aout ) )
{
- intf_ErrMsg("aout error: can't spawn audio output thread (%p)\n", p_aout);
+ intf_ErrMsg( "aout error: cannot spawn audio output thread" );
free( p_aout->buffer );
free( p_aout->s32_buffer );
return( -1 );
}
- intf_DbgMsg("aout debug: audio output thread (%p) spawned\n", p_aout);
+ intf_WarnMsg( 2, "aout info: audio output thread %i spawned", getpid() );
return( 0 );
}
-/******************************************************************************
- * aout_CancelThread
- ******************************************************************************/
-void aout_CancelThread( aout_thread_t * p_aout )
+/*****************************************************************************
+ * aout_DestroyThread
+ *****************************************************************************/
+void aout_DestroyThread( aout_thread_t * p_aout, int *pi_status )
{
- intf_DbgMsg("aout debug: requesting termination of audio output thread (%p)\n", p_aout);
+
+ int i_fifo;
+
+ /* FIXME: pi_status is not handled correctly: check vout how to do!?? */
/* Ask thread to kill itself and wait until it's done */
p_aout->b_die = 1;
- vlc_thread_join( p_aout->thread_id );
+ vlc_thread_join( p_aout->thread_id ); /* only if pi_status is NULL */
/* Free the allocated memory */
free( p_aout->buffer );
free( p_aout->s32_buffer );
-}
-
-/******************************************************************************
- * aout_Close
- ******************************************************************************/
-void aout_Close( aout_thread_t * p_aout )
-{
- aout_dspClose( &p_aout->dsp );
- intf_DbgMsg("aout debug: audio device (%s) closed\n", p_aout->dsp.psz_device);
-}
-
-/******************************************************************************
- * aout_CreateFifo
- ******************************************************************************/
-aout_fifo_t * aout_CreateFifo( aout_thread_t * p_aout, aout_fifo_t * p_fifo )
-{
- int i_fifo;
-
- /* Take the fifos lock */
- vlc_mutex_lock( &p_aout->fifos_lock );
- /* Looking for a free fifo structure */
+ /* Destroy the condition and mutex locks */
for ( i_fifo = 0; i_fifo < AOUT_MAX_FIFOS; i_fifo++ )
{
- if ( p_aout->fifo[i_fifo].i_type == AOUT_EMPTY_FIFO)
- {
- break;
- }
- }
- if ( i_fifo == AOUT_MAX_FIFOS )
- {
- intf_ErrMsg("aout error: no empty fifo available\n");
- vlc_mutex_unlock( &p_aout->fifos_lock );
- return( NULL );
+ vlc_mutex_destroy( &p_aout->fifo[i_fifo].data_lock );
+ vlc_cond_destroy( &p_aout->fifo[i_fifo].data_wait );
}
+ vlc_mutex_destroy( &p_aout->fifos_lock );
+
+ /* Free the plugin */
+ p_aout->pf_close( p_aout );
- /* Initialize the new fifo structure */
- switch ( p_aout->fifo[i_fifo].i_type = p_fifo->i_type )
- {
- case AOUT_INTF_MONO_FIFO:
- case AOUT_INTF_STEREO_FIFO:
- p_aout->fifo[i_fifo].b_die = 0;
+ /* Release the aout module */
+ module_Unneed( p_aout->p_module );
- p_aout->fifo[i_fifo].b_stereo = p_fifo->b_stereo;
- p_aout->fifo[i_fifo].l_rate = p_fifo->l_rate;
-
- p_aout->fifo[i_fifo].buffer = p_fifo->buffer;
-
- p_aout->fifo[i_fifo].l_unit = 0;
- InitializeIncrement( &p_aout->fifo[i_fifo].unit_increment, p_fifo->l_rate, p_aout->dsp.l_rate );
- p_aout->fifo[i_fifo].l_units = p_fifo->l_units;
- break;
-
- case AOUT_ADEC_MONO_FIFO:
- case AOUT_ADEC_STEREO_FIFO:
- p_aout->b_die = 0;
-
- p_aout->fifo[i_fifo].b_stereo = p_fifo->b_stereo;
- p_aout->fifo[i_fifo].l_rate = p_fifo->l_rate;
-
- /* Allocate the memory needed to store the audio frames. As the
- * fifo is a rotative fifo, we must be able to find out whether the
- * fifo is full or empty, that's why we must in fact allocate memory
- * for (AOUT_FIFO_SIZE+1) audio frames. */
- if ( (p_aout->fifo[i_fifo].buffer = malloc( sizeof(s16)*(AOUT_FIFO_SIZE+1)*AOUT_FRAME_SIZE )) == NULL )
- {
- intf_ErrMsg("aout error: not enough memory to create the frames buffer\n");
- p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO;
- vlc_mutex_unlock( &p_aout->fifos_lock );
- return( NULL );
- }
-
- /* Allocate the memory needed to store the dates of the frames */
- if ( (p_aout->fifo[i_fifo].date = (mtime_t *)malloc( sizeof(mtime_t)*(AOUT_FIFO_SIZE+1) )) == NULL )
- {
- intf_ErrMsg("aout error: not enough memory to create the dates buffer\n");
- free( p_aout->fifo[i_fifo].buffer );
- p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO;
- vlc_mutex_unlock( &p_aout->fifos_lock );
- return( NULL );
- }
-
- /* Set the fifo's buffer as empty (the first frame that is to be
- * played is also the first frame that is not to be played) */
- p_aout->fifo[i_fifo].l_start_frame = 0;
- /* p_aout->fifo[i_fifo].l_next_frame = 0; */
- p_aout->fifo[i_fifo].l_end_frame = 0;
-
- /* Waiting for the audio decoder to compute enough frames to work
- * out the fifo's current rate (as soon as the decoder has decoded
- * enough frames, the members of the fifo structure that are not
- * initialized now will be calculated) */
- p_aout->fifo[i_fifo].l_unit = 0; /* !! */
- p_aout->fifo[i_fifo].b_start_frame = 0;
- p_aout->fifo[i_fifo].b_next_frame = 0;
- break;
-
- default:
- intf_ErrMsg("aout error: unknown fifo type (%i)\n", p_aout->fifo[i_fifo].i_type);
- p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO;
- vlc_mutex_unlock( &p_aout->fifos_lock );
- return( NULL );
- }
-
- /* Release the fifos lock */
- vlc_mutex_unlock( &p_aout->fifos_lock );
-
- /* Return the pointer to the fifo structure */
- intf_DbgMsg("aout debug: audio output fifo (%p) allocated\n", &p_aout->fifo[i_fifo]);
- return( &p_aout->fifo[i_fifo] );
+ /* Free structure */
+ free( p_aout );
}
-/******************************************************************************
- * aout_DestroyFifo
- ******************************************************************************/
-void aout_DestroyFifo( aout_fifo_t * p_fifo )
-{
- intf_DbgMsg("aout debug: requesting destruction of audio output fifo (%p)\n", p_fifo);
- p_fifo->b_die = 1;
-}
-
-/* Here are the local macros */
-
-#define S32_TO_S16( sample ) \
- (s16)( (sample) )
-
-#define UPDATE_INCREMENT( increment, integer ) \
- if ( ((increment).l_remainder += (increment).l_euclidean_remainder) >= 0 ) \
- { \
- (integer) += (increment).l_euclidean_integer + 1; \
- (increment).l_remainder -= (increment).l_euclidean_denominator; \
- } \
- else \
- { \
- (integer) += (increment).l_euclidean_integer; \
- }
-
-/* Following functions are local */
-
-/******************************************************************************
- * InitializeIncrement
- ******************************************************************************/
-static __inline__ void InitializeIncrement( aout_increment_t * p_increment, long l_numerator, long l_denominator )
-{
- p_increment->l_remainder = -l_denominator;
-
- p_increment->l_euclidean_integer = 0;
- while ( l_numerator >= l_denominator )
- {
- p_increment->l_euclidean_integer++;
- l_numerator -= l_denominator;
- }
-
- p_increment->l_euclidean_remainder = l_numerator;
-
- p_increment->l_euclidean_denominator = l_denominator;
-}
-
-/******************************************************************************
- * NextFrame
- ******************************************************************************/
-static __inline__ int NextFrame( aout_thread_t * p_aout, aout_fifo_t * p_fifo/*, mtime_t aout_date*/ )
-{
- long l_units, l_rate;
-
- /* We take the lock */
- vlc_mutex_lock( &p_fifo->data_lock );
-
- /* Are we looking for a dated start frame ? */
- if ( !p_fifo->b_start_frame )
- {
- while ( p_fifo->l_start_frame != p_fifo->l_end_frame )
- {
- if ( p_fifo->date[p_fifo->l_start_frame] != LAST_MDATE )
- {
- p_fifo->b_start_frame = 1;
- p_fifo->l_next_frame = (p_fifo->l_start_frame + 1) & AOUT_FIFO_SIZE;
- break;
- }
- p_fifo->l_start_frame = (p_fifo->l_start_frame + 1) & AOUT_FIFO_SIZE;
- }
- if ( p_fifo->l_start_frame == p_fifo->l_end_frame )
- {
- vlc_mutex_unlock( &p_fifo->data_lock );
- return( -1 );
- }
- }
-/*
- if ( aout_date < p_fifo->date[p_fifo->l_start_frame] )
- {
- fprintf(stderr, "+");
- vlc_mutex_unlock( &p_fifo->data_lock );
- return( -1 );
- }
-*/
- /* We are looking for the next dated frame */
- while ( p_fifo->l_next_frame != p_fifo->l_end_frame )
- {
- if ( p_fifo->date[p_fifo->l_next_frame] != LAST_MDATE )
- {
-/*
- if ( aout_date < p_fifo->date[p_fifo->l_next_frame] )
- {
-*/
- if ( p_fifo->date[p_fifo->l_next_frame] - p_fifo->date[p_fifo->l_start_frame] > 1000000 )
- {
- p_fifo->date[p_fifo->l_start_frame] = p_fifo->date[p_fifo->l_next_frame] - ((1000000 * AOUT_FRAME_SIZE * ((mtime_t)((p_fifo->l_next_frame - p_fifo->l_start_frame) & AOUT_FIFO_SIZE)) >> p_fifo->b_stereo) / ((mtime_t)p_fifo->l_rate));
- }
- p_fifo->b_next_frame = 1;
- break;
-/*
- }
- else
- {
- fprintf(stderr, "-");
- p_fifo->l_start_frame = p_fifo->l_next_frame;
- }
-*/
- }
- p_fifo->l_next_frame = (p_fifo->l_next_frame + 1) & AOUT_FIFO_SIZE;
- }
- if ( p_fifo->l_next_frame == p_fifo->l_end_frame )
- {
- if ( (((p_fifo->l_end_frame + 1) - p_fifo->l_start_frame) & AOUT_FIFO_SIZE) == 0 )
- {
- p_fifo->l_start_frame = 0;
- p_fifo->b_start_frame = 0;
- /* p_fifo->l_next_frame = 0; */
- /* p_fifo->b_next_frame = 0; */
- p_fifo->l_end_frame = 0;
- }
- vlc_mutex_unlock( &p_fifo->data_lock );
- return( -1 );
- }
-
- l_units = ((p_fifo->l_next_frame - p_fifo->l_start_frame) & AOUT_FIFO_SIZE)
- * (AOUT_FRAME_SIZE >> p_fifo->b_stereo);
-
- l_rate = (long)( ((mtime_t)l_units * 1000000)
- / (p_fifo->date[p_fifo->l_next_frame] - p_fifo->date[p_fifo->l_start_frame]) );
-
- InitializeIncrement( &p_fifo->unit_increment, l_rate, p_aout->dsp.l_rate );
-
- p_fifo->l_units = (((l_units - (p_fifo->l_unit -
- (p_fifo->l_start_frame * (AOUT_FRAME_SIZE >> p_fifo->b_stereo))))
- * p_aout->dsp.l_rate) / l_rate) + 1;
-
- /* We release the lock before leaving */
- vlc_mutex_unlock( &p_fifo->data_lock );
- return( 0 );
-}
-
-void aout_Thread_S8_Mono( aout_thread_t * p_aout )
-{
-}
-
-void aout_Thread_S8_Stereo( aout_thread_t * p_aout )
-{
-}
-
-void aout_Thread_U8_Mono( aout_thread_t * p_aout )
-{
-}
-
-void aout_Thread_U8_Stereo( aout_thread_t * p_aout )
-{
-}
-
-void aout_Thread_S16_Mono( aout_thread_t * p_aout )
-{
-}
-
-void aout_Thread_S16_Stereo( aout_thread_t * p_aout )
-{
- int i_fifo;
- long l_units;
- long l_buffer, l_buffer_limit;
-
- intf_DbgMsg("adec debug: running audio output thread (%p) (pid == %i)\n", p_aout, getpid());
-
- /* As the s32_buffer was created with calloc(), we don't have to set this
- * memory to zero and we can immediately jump into the thread's loop */
- while ( !p_aout->b_die )
- {
- vlc_mutex_lock( &p_aout->fifos_lock );
- for ( i_fifo = 0; i_fifo < AOUT_MAX_FIFOS; i_fifo++ )
- {
- switch ( p_aout->fifo[i_fifo].i_type )
- {
- case AOUT_EMPTY_FIFO:
- break;
-
- case AOUT_INTF_MONO_FIFO:
- if ( p_aout->fifo[i_fifo].l_units > p_aout->l_units )
- {
- l_buffer = 0;
- while ( l_buffer < (p_aout->l_units << 1) ) /* p_aout->dsp.b_stereo == 1 */
- {
- p_aout->s32_buffer[l_buffer++] +=
- (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
- p_aout->s32_buffer[l_buffer++] +=
- (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
- UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
- }
- p_aout->fifo[i_fifo].l_units -= p_aout->l_units;
- }
- else
- {
- l_buffer = 0;
- while ( l_buffer < (p_aout->fifo[i_fifo].l_units << 1) ) /* p_aout->dsp.b_stereo == 1 */
- {
- p_aout->s32_buffer[l_buffer++] +=
- (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
- p_aout->s32_buffer[l_buffer++] +=
- (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
- UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
- }
- free( p_aout->fifo[i_fifo].buffer ); /* !! */
- p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
- intf_DbgMsg("aout debug: audio output fifo (%p) destroyed\n", &p_aout->fifo[i_fifo]); /* !! */
- }
- break;
-
- case AOUT_INTF_STEREO_FIFO:
- if ( p_aout->fifo[i_fifo].l_units > p_aout->l_units )
- {
- l_buffer = 0;
- while ( l_buffer < (p_aout->l_units << 1) ) /* p_aout->dsp.b_stereo == 1 */
- {
- p_aout->s32_buffer[l_buffer++] +=
- (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit] );
- p_aout->s32_buffer[l_buffer++] +=
- (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit+1] );
- UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
- }
- p_aout->fifo[i_fifo].l_units -= p_aout->l_units;
- }
- else
- {
- l_buffer = 0;
- while ( l_buffer < (p_aout->fifo[i_fifo].l_units << 1) ) /* p_aout->dsp.b_stereo */
- {
- p_aout->s32_buffer[l_buffer++] +=
- (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit] );
- p_aout->s32_buffer[l_buffer++] +=
- (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit+1] );
- UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
- }
- free( p_aout->fifo[i_fifo].buffer ); /* !! */
- p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
- intf_DbgMsg("aout debug: audio output fifo (%p) destroyed\n", &p_aout->fifo[i_fifo]); /* !! */
- }
- break;
-
- case AOUT_ADEC_MONO_FIFO:
- l_units = p_aout->l_units;
- l_buffer = 0;
- while ( l_units > 0 )
- {
- if ( !p_aout->fifo[i_fifo].b_next_frame )
- {
- if ( NextFrame(p_aout, &p_aout->fifo[i_fifo]/*, p_aout->date + (mtime_t)((l_buffer >> p_aout->dsp.b_stereo) / p_aout->dsp.l_rate)*/) )
- {
- break;
- }
- }
-
- if ( p_aout->fifo[i_fifo].l_units > l_units )
- {
- l_buffer_limit = p_aout->l_units << 1; /* p_aout->dsp.b_stereo == 1 */
- while ( l_buffer < l_buffer_limit )
- {
- p_aout->s32_buffer[l_buffer++] +=
- (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
- p_aout->s32_buffer[l_buffer++] +=
- (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
-
- UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
- if ( p_aout->fifo[i_fifo].l_unit >= /* p_aout->fifo[i_fifo].b_stereo == 0 */
- ((AOUT_FIFO_SIZE + 1) * (AOUT_FRAME_SIZE >> 0)) )
- {
- p_aout->fifo[i_fifo].l_unit -= /* p_aout->fifo[i_fifo].b_stereo == 0 */
- ((AOUT_FIFO_SIZE + 1) * (AOUT_FRAME_SIZE >> 0));
- }
- }
- p_aout->fifo[i_fifo].l_units -= l_units;
- break;
- }
- else
- {
- l_buffer_limit = l_buffer + (p_aout->fifo[i_fifo].l_units << 1);
- /* p_aout->dsp.b_stereo == 1 */
- while ( l_buffer < l_buffer_limit )
- {
- p_aout->s32_buffer[l_buffer++] +=
- (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
- p_aout->s32_buffer[l_buffer++] +=
- (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[p_aout->fifo[i_fifo].l_unit] );
-
- UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
- if ( p_aout->fifo[i_fifo].l_unit >= /* p_aout->fifo[i_fifo].b_stereo == 0 */
- ((AOUT_FIFO_SIZE + 1) * (AOUT_FRAME_SIZE >> 0)) )
- {
- p_aout->fifo[i_fifo].l_unit -= /* p_aout->fifo[i_fifo].b_stereo == 0 */
- ((AOUT_FIFO_SIZE + 1) * (AOUT_FRAME_SIZE >> 0));
- }
- }
- l_units -= p_aout->fifo[i_fifo].l_units;
-
- vlc_mutex_lock( &p_aout->fifo[i_fifo].data_lock );
- p_aout->fifo[i_fifo].l_start_frame = p_aout->fifo[i_fifo].l_next_frame;
- vlc_cond_signal( &p_aout->fifo[i_fifo].data_wait );
- vlc_mutex_unlock( &p_aout->fifo[i_fifo].data_lock );
-
- /* p_aout->fifo[i_fifo].b_start_frame = 1; */
- p_aout->fifo[i_fifo].l_next_frame += 1;
- p_aout->fifo[i_fifo].l_next_frame &= AOUT_FIFO_SIZE;
- p_aout->fifo[i_fifo].b_next_frame = 0;
- }
- }
- break;
-
- case AOUT_ADEC_STEREO_FIFO:
- l_units = p_aout->l_units;
- l_buffer = 0;
- while ( l_units > 0 )
- {
- if ( !p_aout->fifo[i_fifo].b_next_frame )
- {
- if ( NextFrame(p_aout, &p_aout->fifo[i_fifo]/*, p_aout->date + (mtime_t)((l_buffer >> p_aout->dsp.b_stereo) / p_aout->dsp.l_rate)*/) )
- {
- break;
- }
- }
-
- if ( p_aout->fifo[i_fifo].l_units > l_units )
- {
- l_buffer_limit = p_aout->l_units << 1; /* p_aout->dsp.b_stereo == 1 */
- while ( l_buffer < l_buffer_limit )
- {
- p_aout->s32_buffer[l_buffer++] +=
- (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit] );
- p_aout->s32_buffer[l_buffer++] +=
- (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit+1] );
-
- UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
- if ( p_aout->fifo[i_fifo].l_unit >= /* p_aout->fifo[i_fifo].b_stereo == 1 */
- ((AOUT_FIFO_SIZE + 1) * (AOUT_FRAME_SIZE >> 1)) )
- {
- p_aout->fifo[i_fifo].l_unit -= /* p_aout->fifo[i_fifo].b_stereo == 1 */
- ((AOUT_FIFO_SIZE + 1) * (AOUT_FRAME_SIZE >> 1));
- }
- }
- p_aout->fifo[i_fifo].l_units -= l_units;
- break;
- }
- else
- {
- l_buffer_limit = l_buffer + (p_aout->fifo[i_fifo].l_units << 1);
- /* p_aout->dsp.b_stereo == 1 */
- while ( l_buffer < l_buffer_limit )
- {
- p_aout->s32_buffer[l_buffer++] +=
- (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit] );
- p_aout->s32_buffer[l_buffer++] +=
- (s32)( ((s16 *)p_aout->fifo[i_fifo].buffer)[2*p_aout->fifo[i_fifo].l_unit+1] );
-
- UPDATE_INCREMENT( p_aout->fifo[i_fifo].unit_increment, p_aout->fifo[i_fifo].l_unit )
- if ( p_aout->fifo[i_fifo].l_unit >= /* p_aout->fifo[i_fifo].b_stereo == 1 */
- ((AOUT_FIFO_SIZE + 1) * (AOUT_FRAME_SIZE >> 1)) )
- {
- p_aout->fifo[i_fifo].l_unit -= /* p_aout->fifo[i_fifo].b_stereo == 1 */
- ((AOUT_FIFO_SIZE + 1) * (AOUT_FRAME_SIZE >> 1));
- }
- }
- l_units -= p_aout->fifo[i_fifo].l_units;
-
- vlc_mutex_lock( &p_aout->fifo[i_fifo].data_lock );
- p_aout->fifo[i_fifo].l_start_frame = p_aout->fifo[i_fifo].l_next_frame;
- vlc_cond_signal( &p_aout->fifo[i_fifo].data_wait );
- vlc_mutex_unlock( &p_aout->fifo[i_fifo].data_lock );
-
- /* p_aout->fifo[i_fifo].b_start_frame = 1; */
- p_aout->fifo[i_fifo].l_next_frame += 1;
- p_aout->fifo[i_fifo].l_next_frame &= AOUT_FIFO_SIZE;
- p_aout->fifo[i_fifo].b_next_frame = 0;
- }
- }
- break;
-
- default:
- intf_DbgMsg("aout debug: unknown fifo type (%i)\n", p_aout->fifo[i_fifo].i_type);
- break;
- }
- }
- vlc_mutex_unlock( &p_aout->fifos_lock );
-
- l_buffer_limit = p_aout->l_units << 1; /* p_aout->dsp.b_stereo == 1 */
-
- for ( l_buffer = 0; l_buffer < l_buffer_limit; l_buffer++ )
- {
- ((s16 *)p_aout->buffer)[l_buffer] = S32_TO_S16( p_aout->s32_buffer[l_buffer] / AOUT_MAX_FIFOS );
- p_aout->s32_buffer[l_buffer] = 0;
- }
-
- aout_dspGetBufInfo( &p_aout->dsp );
- if ( p_aout->dsp.buf_info.fragments == p_aout->dsp.buf_info.fragstotal ) /* ?? */
- {
- aout_dspPlaySamples( &p_aout->dsp, (byte_t *)p_aout->buffer, sizeof(s16) * l_buffer_limit );
- p_aout->date = mdate();
- }
- else if ( p_aout->dsp.buf_info.bytes >=
- ((p_aout->dsp.buf_info.fragsize * p_aout->dsp.buf_info.fragstotal) -
- (sizeof(s16) * l_buffer_limit)) )
- {
- aout_dspPlaySamples( &p_aout->dsp, (byte_t *)p_aout->buffer, sizeof(s16) * l_buffer_limit );
- }
- else
- {
- aout_dspPlaySamples( &p_aout->dsp, (byte_t *)p_aout->buffer, sizeof(s16) * l_buffer_limit );
- msleep( p_aout->date_increment.l_euclidean_integer );
- }
- UPDATE_INCREMENT( p_aout->date_increment, p_aout->date )
- }
-
- vlc_mutex_lock( &p_aout->fifos_lock );
- for ( i_fifo = 0; i_fifo < AOUT_MAX_FIFOS; i_fifo++ )
- {
- switch ( p_aout->fifo[i_fifo].i_type )
- {
- case AOUT_EMPTY_FIFO:
- break;
-
- case AOUT_INTF_MONO_FIFO:
- case AOUT_INTF_STEREO_FIFO:
- free( p_aout->fifo[i_fifo].buffer ); /* !! */
- p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
- intf_DbgMsg("aout debug: audio output fifo (%p) destroyed\n", &p_aout->fifo[i_fifo]);
- break;
-
- case AOUT_ADEC_MONO_FIFO:
- case AOUT_ADEC_STEREO_FIFO:
- free( p_aout->fifo[i_fifo].buffer );
- free( p_aout->fifo[i_fifo].date );
- p_aout->fifo[i_fifo].i_type = AOUT_EMPTY_FIFO; /* !! */
- intf_DbgMsg("aout debug: audio output fifo (%p) destroyed\n", &p_aout->fifo[i_fifo]);
- break;
-
- default:
- break;
- }
- }
- vlc_mutex_unlock( &p_aout->fifos_lock );
-}
-
-void aout_Thread_U16_Mono( aout_thread_t * p_aout )
-{
-}
-
-void aout_Thread_U16_Stereo( aout_thread_t * p_aout )
-{
-}
projects / vlc / blobdiff