a730b92f470b76c911f7435ef4355e7e5ce7440a
[vlc.git] / src / audio_output / aout_internal.h
1 /*****************************************************************************
2  * aout_internal.h : internal defines for audio output
3  *****************************************************************************
4  * Copyright (C) 2002 the VideoLAN team
5  * $Id$
6  *
7  * Authors: Christophe Massiot <massiot@via.ecp.fr>
8  *
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.
13  *
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.
18  *
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  *****************************************************************************/
23
24 #if defined(__PLUGIN__) || defined(__BUILTIN__) || !defined(__LIBVLC__)
25 # error This header file can only be included from LibVLC.
26 #endif
27
28 #ifndef __LIBVLC_AOUT_INTERNAL_H
29 # define __LIBVLC_AOUT_INTERNAL_H 1
30
31 #if defined( __APPLE__ ) || defined( SYS_BSD )
32 #undef HAVE_ALLOCA
33 #endif
34
35 #ifdef HAVE_ALLOCA
36 #   define ALLOCA_TEST( p_alloc, p_new_buffer )                             \
37         if ( (p_alloc)->i_alloc_type == AOUT_ALLOC_STACK )                  \
38         {                                                                   \
39             (p_new_buffer) = alloca( i_alloc_size + sizeof(aout_buffer_t) );\
40             i_alloc_type = AOUT_ALLOC_STACK;                                \
41         }                                                                   \
42         else
43 #else
44 #   define ALLOCA_TEST( p_alloc, p_new_buffer )
45 #endif
46
47 #define aout_BufferAlloc( p_alloc, i_nb_usec, p_previous_buffer,            \
48                           p_new_buffer )                                    \
49     if ( (p_alloc)->i_alloc_type == AOUT_ALLOC_NONE )                       \
50     {                                                                       \
51         (p_new_buffer) = p_previous_buffer;                                 \
52     }                                                                       \
53     else                                                                    \
54     {                                                                       \
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 )                                \
59         {                                                                   \
60             (p_new_buffer) = malloc( i_alloc_size + sizeof(aout_buffer_t) );\
61             i_alloc_type = AOUT_ALLOC_HEAP;                                 \
62         }                                                                   \
63         if ( p_new_buffer != NULL )                                         \
64         {                                                                   \
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 = (byte_t *)(p_new_buffer)             \
68                                          + sizeof(aout_buffer_t);           \
69             (p_new_buffer)->b_discontinuity = VLC_FALSE;                    \
70             if ( (p_previous_buffer) != NULL )                              \
71             {                                                               \
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;  \
76             }                                                               \
77         }                                                                   \
78         /* we'll keep that for a while --Meuuh */                           \
79         /* else printf("%s:%d\n", __FILE__, __LINE__); */                   \
80     }
81
82 /****************************************************************************
83  * Prototypes
84  *****************************************************************************/
85 /* From input.c : */
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 );
90
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 );
96
97 /* From mixer.c : */
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 );
103
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 );
109
110
111 /* From common.c : */
112 #define aout_New(a) __aout_New(VLC_OBJECT(a))
113 aout_instance_t * __aout_New ( vlc_object_t * );
114 void aout_Delete ( aout_instance_t * );
115
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 );
123
124
125 /* From intf.c :*/
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 * );
132
133 /* From dec.c */
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_instance_t *, 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 );
140
141 #endif /* !__LIBVLC_AOUT_INTERNAL_H */