/*****************************************************************************
* aout_internal.h : internal defines for audio output
*****************************************************************************
* Copyright (C) 2002 the VideoLAN team
* $Id$
*
* Authors: Christophe Massiot <massiot@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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#if defined(__PLUGIN__) || defined(__BUILTIN__) || !defined(__LIBVLC__)
#endif
#ifndef __LIBVLC_AOUT_INTERNAL_H
# define __LIBVLC_AOUT_INTERNAL_H 1
#include <assert.h>
#if defined( __APPLE__ ) || defined( SYS_BSD )
#undef HAVE_ALLOCA
#endif
#ifdef HAVE_ALLOCA
# define ALLOCA_TEST( p_alloc, p_new_buffer ) \
if ( (p_alloc)->i_alloc_type == AOUT_ALLOC_STACK ) \
{ \
(p_new_buffer) = alloca( i_alloc_size + sizeof(aout_buffer_t) );\
i_alloc_type = AOUT_ALLOC_STACK; \
} \
else
#else
# define ALLOCA_TEST( p_alloc, p_new_buffer )
#endif
#define aout_BufferAlloc( p_alloc, i_nb_usec, p_previous_buffer, \
p_new_buffer ) \
if ( (p_alloc)->i_alloc_type == AOUT_ALLOC_NONE ) \
{ \
(p_new_buffer) = p_previous_buffer; \
} \
else \
{ \
int i_alloc_size, i_alloc_type; \
i_alloc_size = (int)( (uint64_t)(p_alloc)->i_bytes_per_sec \
* (i_nb_usec) / 1000000 + 1 ); \
ALLOCA_TEST( p_alloc, p_new_buffer ) \
{ \
(p_new_buffer) = malloc( i_alloc_size + sizeof(aout_buffer_t) );\
i_alloc_type = AOUT_ALLOC_HEAP; \
} \
if ( p_new_buffer != NULL ) \
{ \
(p_new_buffer)->i_alloc_type = i_alloc_type; \
(p_new_buffer)->i_size = i_alloc_size; \
(p_new_buffer)->p_buffer = (uint8_t *)(p_new_buffer) \
+ sizeof(aout_buffer_t); \
(p_new_buffer)->b_discontinuity = false; \
if ( (p_previous_buffer) != NULL ) \
{ \
(p_new_buffer)->start_date = \
((aout_buffer_t *)p_previous_buffer)->start_date;\
(p_new_buffer)->end_date = \
((aout_buffer_t *)p_previous_buffer)->end_date; \
} \
} \
/* we'll keep that for a while --Meuuh */ \
/* else printf("%s:%d\n", __FILE__, __LINE__); */ \
}
/****************************************************************************
* Prototypes
*****************************************************************************/
/* From input.c : */
int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input );
int aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input );
int aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
aout_buffer_t * p_buffer, int i_input_rate );
/* From filters.c : */
int aout_FiltersCreatePipeline ( aout_instance_t * p_aout, aout_filter_t ** pp_filters, int * pi_nb_filters, const audio_sample_format_t * p_input_format, const audio_sample_format_t * p_output_format );
void aout_FiltersDestroyPipeline ( aout_instance_t * p_aout, aout_filter_t ** pp_filters, int i_nb_filters );
void aout_FiltersPlay ( aout_instance_t * p_aout, aout_filter_t ** pp_filters, int i_nb_filters, aout_buffer_t ** pp_input_buffer );
void aout_FiltersHintBuffers( aout_instance_t * p_aout, aout_filter_t ** pp_filters, int i_nb_filters, aout_alloc_t * p_first_alloc );
/* From mixer.c : */
int aout_MixerNew( aout_instance_t * p_aout );
void aout_MixerDelete( aout_instance_t * p_aout );
void aout_MixerRun( aout_instance_t * p_aout );
int aout_MixerMultiplierSet( aout_instance_t * p_aout, float f_multiplier );
int aout_MixerMultiplierGet( aout_instance_t * p_aout, float * pf_multiplier );
/* From output.c : */
int aout_OutputNew( aout_instance_t * p_aout,
audio_sample_format_t * p_format );
void aout_OutputPlay( aout_instance_t * p_aout, aout_buffer_t * p_buffer );
void aout_OutputDelete( aout_instance_t * p_aout );
/* From common.c : */
#define aout_New(a) __aout_New(VLC_OBJECT(a))
/* Release with vlc_object_release() */
aout_instance_t * __aout_New ( vlc_object_t * );
void aout_FifoInit( aout_instance_t *, aout_fifo_t *, uint32_t );
mtime_t aout_FifoNextStart( aout_instance_t *, aout_fifo_t * );
void aout_FifoPush( aout_instance_t *, aout_fifo_t *, aout_buffer_t * );
void aout_FifoSet( aout_instance_t *, aout_fifo_t *, mtime_t );
void aout_FifoMoveDates( aout_instance_t *, aout_fifo_t *, mtime_t );
void aout_FifoDestroy( aout_instance_t * p_aout, aout_fifo_t * p_fifo );
void aout_FormatsPrint( aout_instance_t * p_aout, const char * psz_text, const audio_sample_format_t * p_format1, const audio_sample_format_t * p_format2 );
/* From intf.c :*/
int aout_VolumeSoftGet( aout_instance_t *, audio_volume_t * );
int aout_VolumeSoftSet( aout_instance_t *, audio_volume_t );
int aout_VolumeSoftInfos( aout_instance_t *, audio_volume_t * );
int aout_VolumeNoneGet( aout_instance_t *, audio_volume_t * );
int aout_VolumeNoneSet( aout_instance_t *, audio_volume_t );
int aout_VolumeNoneInfos( aout_instance_t *, audio_volume_t * );
/* From dec.c */
#define aout_DecNew(a, b, c, d) __aout_DecNew(VLC_OBJECT(a), b, c, d)
aout_input_t * __aout_DecNew( vlc_object_t *, aout_instance_t **, audio_sample_format_t *, audio_replay_gain_t * );
int aout_DecDelete ( aout_instance_t *, aout_input_t * );
aout_buffer_t * aout_DecNewBuffer( aout_input_t *, size_t );
void aout_DecDeleteBuffer( aout_instance_t *, aout_input_t *, aout_buffer_t * );
int aout_DecPlay( aout_instance_t *, aout_input_t *, aout_buffer_t *, int i_input_rate );
/* Helpers */
static inline void aout_lock_mixer( aout_instance_t *p_aout )
{
vlc_mutex_lock( &p_aout->mixer_lock );
}
static inline void aout_unlock_mixer( aout_instance_t *p_aout )
{
vlc_mutex_unlock( &p_aout->mixer_lock );
}
static inline void aout_lock_input_fifos( aout_instance_t *p_aout )
{
vlc_mutex_lock( &p_aout->input_fifos_lock );
}
static inline void aout_unlock_input_fifos( aout_instance_t *p_aout )
{
vlc_mutex_unlock( &p_aout->input_fifos_lock );
}
static inline void aout_lock_output_fifo( aout_instance_t *p_aout )
{
vlc_mutex_lock( &p_aout->output_fifo_lock );
}
static inline void aout_unlock_output_fifo( aout_instance_t *p_aout )
{
vlc_mutex_unlock( &p_aout->output_fifo_lock );
}
static inline void aout_lock_input( aout_instance_t *p_aout, aout_input_t * p_input )
{
(void)p_aout;
vlc_mutex_lock( &p_input->lock );
}
static inline void aout_unlock_input( aout_instance_t *p_aout, aout_input_t * p_input )
{
(void)p_aout;
vlc_mutex_unlock( &p_input->lock );
}
/**
* This function will safely mark aout input to be restarted as soon as
* possible to take configuration changes into account */
static inline void AoutInputsMarkToRestart( aout_instance_t *p_aout )
{
int i;
aout_lock_mixer( p_aout );
for( i = 0; i < p_aout->i_nb_inputs; i++ )
p_aout->pp_inputs[i]->b_restart = true;
aout_unlock_mixer( p_aout );
}
/* This function will add or remove a a module from a string list (comma
* separated). It will return true if there is a modification
* In case p_aout is NULL, we will use configuration instead of variable */
static inline bool AoutChangeFilterString( vlc_object_t *p_obj, aout_instance_t * p_aout,
const char* psz_variable,
const char *psz_name, bool b_add )
{
vlc_value_t val;
char *psz_parser;
if( *psz_name == '\0' )
return false;
if( p_aout )
var_Get( p_aout, psz_variable, &val );
else
val.psz_string = config_GetPsz( p_obj, "audio-filter" );
if( !val.psz_string )
val.psz_string = strdup("");
psz_parser = strstr( val.psz_string, psz_name );
if( ( b_add && psz_parser ) || ( !b_add && !psz_parser ) )
{
/* Nothing to do */
free( val.psz_string );
return false;
}
if( b_add )
{
char *psz_old = val.psz_string;
if( *psz_old )
{
if( asprintf( &val.psz_string, "%s:%s", psz_old, psz_name ) == -1 )
val.psz_string = NULL;
}
else
val.psz_string = strdup( psz_name );
free( psz_old );
}
else
{
const int i_name = strlen( psz_name );
const char *psz_next;
psz_next = &psz_parser[i_name];
if( *psz_next == ':' )
psz_next++;
memmove( psz_parser, psz_next, strlen(psz_next)+1 );
}
if( p_aout )
var_Set( p_aout, psz_variable, val );
else
config_PutPsz( p_obj, psz_variable, val.psz_string );
free( val.psz_string );
return true;
}
#endif /* !__LIBVLC_AOUT_INTERNAL_H */
