1 /*****************************************************************************
2 * aout_internal.h : internal defines for audio output
3 *****************************************************************************
4 * Copyright (C) 2002 the VideoLAN team
7 * Authors: Christophe Massiot <massiot@via.ecp.fr>
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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 #if defined(__PLUGIN__) || defined(__BUILTIN__) || !defined(__LIBVLC__)
25 # error This header file can only be included from LibVLC.
28 #ifndef __LIBVLC_AOUT_INTERNAL_H
29 # define __LIBVLC_AOUT_INTERNAL_H 1
31 #if defined( __APPLE__ ) || defined( SYS_BSD )
36 # define ALLOCA_TEST( p_alloc, p_new_buffer ) \
37 if ( (p_alloc)->i_alloc_type == AOUT_ALLOC_STACK ) \
39 (p_new_buffer) = alloca( i_alloc_size + sizeof(aout_buffer_t) );\
40 i_alloc_type = AOUT_ALLOC_STACK; \
44 # define ALLOCA_TEST( p_alloc, p_new_buffer )
47 #define aout_BufferAlloc( p_alloc, i_nb_usec, p_previous_buffer, \
49 if ( (p_alloc)->i_alloc_type == AOUT_ALLOC_NONE ) \
51 (p_new_buffer) = p_previous_buffer; \
55 int i_alloc_size, i_alloc_type; \
56 i_alloc_size = (int)( (uint64_t)(p_alloc)->i_bytes_per_sec \
57 * (i_nb_usec) / 1000000 + 1 ); \
58 ALLOCA_TEST( p_alloc, p_new_buffer ) \
60 (p_new_buffer) = malloc( i_alloc_size + sizeof(aout_buffer_t) );\
61 i_alloc_type = AOUT_ALLOC_HEAP; \
63 if ( p_new_buffer != NULL ) \
65 (p_new_buffer)->i_alloc_type = i_alloc_type; \
66 (p_new_buffer)->i_size = i_alloc_size; \
67 (p_new_buffer)->p_buffer = (uint8_t *)(p_new_buffer) \
68 + sizeof(aout_buffer_t); \
69 (p_new_buffer)->b_discontinuity = false; \
70 if ( (p_previous_buffer) != NULL ) \
72 (p_new_buffer)->start_date = \
73 ((aout_buffer_t *)p_previous_buffer)->start_date;\
74 (p_new_buffer)->end_date = \
75 ((aout_buffer_t *)p_previous_buffer)->end_date; \
78 /* we'll keep that for a while --Meuuh */ \
79 /* else printf("%s:%d\n", __FILE__, __LINE__); */ \
82 /****************************************************************************
84 *****************************************************************************/
86 int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input );
87 int aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input );
88 int aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
89 aout_buffer_t * p_buffer, int i_input_rate );
91 /* From filters.c : */
92 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 );
93 void aout_FiltersDestroyPipeline ( aout_instance_t * p_aout, aout_filter_t ** pp_filters, int i_nb_filters );
94 void aout_FiltersPlay ( aout_instance_t * p_aout, aout_filter_t ** pp_filters, int i_nb_filters, aout_buffer_t ** pp_input_buffer );
95 void aout_FiltersHintBuffers( aout_instance_t * p_aout, aout_filter_t ** pp_filters, int i_nb_filters, aout_alloc_t * p_first_alloc );
98 int aout_MixerNew( aout_instance_t * p_aout );
99 void aout_MixerDelete( aout_instance_t * p_aout );
100 void aout_MixerRun( aout_instance_t * p_aout );
101 int aout_MixerMultiplierSet( aout_instance_t * p_aout, float f_multiplier );
102 int aout_MixerMultiplierGet( aout_instance_t * p_aout, float * pf_multiplier );
104 /* From output.c : */
105 int aout_OutputNew( aout_instance_t * p_aout,
106 audio_sample_format_t * p_format );
107 void aout_OutputPlay( aout_instance_t * p_aout, aout_buffer_t * p_buffer );
108 void aout_OutputDelete( aout_instance_t * p_aout );
111 /* From common.c : */
112 #define aout_New(a) __aout_New(VLC_OBJECT(a))
113 /* Release with vlc_object_release() */
114 aout_instance_t * __aout_New ( vlc_object_t * );
116 void aout_FifoInit( aout_instance_t *, aout_fifo_t *, uint32_t );
117 mtime_t aout_FifoNextStart( aout_instance_t *, aout_fifo_t * );
118 void aout_FifoPush( aout_instance_t *, aout_fifo_t *, aout_buffer_t * );
119 void aout_FifoSet( aout_instance_t *, aout_fifo_t *, mtime_t );
120 void aout_FifoMoveDates( aout_instance_t *, aout_fifo_t *, mtime_t );
121 void aout_FifoDestroy( aout_instance_t * p_aout, aout_fifo_t * p_fifo );
122 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 );
126 int aout_VolumeSoftGet( aout_instance_t *, audio_volume_t * );
127 int aout_VolumeSoftSet( aout_instance_t *, audio_volume_t );
128 int aout_VolumeSoftInfos( aout_instance_t *, audio_volume_t * );
129 int aout_VolumeNoneGet( aout_instance_t *, audio_volume_t * );
130 int aout_VolumeNoneSet( aout_instance_t *, audio_volume_t );
131 int aout_VolumeNoneInfos( aout_instance_t *, audio_volume_t * );
134 #define aout_DecNew(a, b, c, d) __aout_DecNew(VLC_OBJECT(a), b, c, d)
135 aout_input_t * __aout_DecNew( vlc_object_t *, aout_instance_t **, audio_sample_format_t *, audio_replay_gain_t * );
136 int aout_DecDelete ( aout_instance_t *, aout_input_t * );
137 aout_buffer_t * aout_DecNewBuffer( aout_input_t *, size_t );
138 void aout_DecDeleteBuffer( aout_instance_t *, aout_input_t *, aout_buffer_t * );
139 int aout_DecPlay( aout_instance_t *, aout_input_t *, aout_buffer_t *, int i_input_rate );
144 * This function will safely mark aout input to be restarted as soon as
145 * possible to take configuration changes into account */
146 static inline void AoutInputsMarkToRestart( aout_instance_t *p_aout )
149 vlc_mutex_lock( &p_aout->mixer_lock );
150 for( i = 0; i < p_aout->i_nb_inputs; i++ )
151 p_aout->pp_inputs[i]->b_restart = true;
152 vlc_mutex_unlock( &p_aout->mixer_lock );
155 /* This function will add or remove a a module from a string list (comma
156 * separated). It will return true if there is a modification
157 * In case p_aout is NULL, we will use configuration instead of variable */
158 static inline bool AoutChangeFilterString( vlc_object_t *p_obj, aout_instance_t * p_aout,
159 const char* psz_variable,
160 const char *psz_name, bool b_add )
165 if( *psz_name == '\0' )
169 var_Get( p_aout, psz_variable, &val );
171 val.psz_string = config_GetPsz( p_obj, "audio-filter" );
173 if( !val.psz_string )
174 val.psz_string = strdup("");
176 psz_parser = strstr( val.psz_string, psz_name );
178 if( ( b_add && psz_parser ) || ( !b_add && !psz_parser ) )
181 free( val.psz_string );
187 char *psz_old = val.psz_string;
189 asprintf( &val.psz_string, "%s:%s", psz_old, psz_name );
191 val.psz_string = strdup( psz_name );
196 const int i_name = strlen( psz_name );
197 const char *psz_next;
199 psz_next = &psz_parser[i_name];
200 if( *psz_next == ':' )
203 memmove( psz_parser, psz_next, strlen(psz_next)+1 );
207 var_Set( p_aout, psz_variable, val );
209 config_PutPsz( p_obj, psz_variable, val.psz_string );
210 free( val.psz_string );
214 #endif /* !__LIBVLC_AOUT_INTERNAL_H */