git.sesse.net Git - vlc/blob - 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 = 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_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 */