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( __APPLE__ ) || defined( SYS_BSD )
  25 #undef HAVE_ALLOCA
  26 #endif
  27
  28 #ifdef HAVE_ALLOCA
  29 #   define ALLOCA_TEST( p_alloc, p_new_buffer )                             \
  30         if ( (p_alloc)->i_alloc_type == AOUT_ALLOC_STACK )                  \
  31         {                                                                   \
  32             (p_new_buffer) = alloca( i_alloc_size + sizeof(aout_buffer_t) );\
  33             i_alloc_type = AOUT_ALLOC_STACK;                                \
  34         }                                                                   \
  35         else
  36 #else
  37 #   define ALLOCA_TEST( p_alloc, p_new_buffer )
  38 #endif
  39
  40 #define aout_BufferAlloc( p_alloc, i_nb_usec, p_previous_buffer,            \
  41                           p_new_buffer )                                    \
  42     if ( (p_alloc)->i_alloc_type == AOUT_ALLOC_NONE )                       \
  43     {                                                                       \
  44         (p_new_buffer) = p_previous_buffer;                                 \
  45     }                                                                       \
  46     else                                                                    \
  47     {                                                                       \
  48         int i_alloc_size, i_alloc_type;                                     \
  49         i_alloc_size = (int)( (uint64_t)(p_alloc)->i_bytes_per_sec          \
  50                                             * (i_nb_usec) / 1000000 + 1 );  \
  51         ALLOCA_TEST( p_alloc, p_new_buffer )                                \
  52         {                                                                   \
  53             (p_new_buffer) = malloc( i_alloc_size + sizeof(aout_buffer_t) );\
  54             i_alloc_type = AOUT_ALLOC_HEAP;                                 \
  55         }                                                                   \
  56         if ( p_new_buffer != NULL )                                         \
  57         {                                                                   \
  58             (p_new_buffer)->i_alloc_type = i_alloc_type;                    \
  59             (p_new_buffer)->i_size = i_alloc_size;                          \
  60             (p_new_buffer)->p_buffer = (byte_t *)(p_new_buffer)             \
  61                                          + sizeof(aout_buffer_t);           \
  62             if ( (p_previous_buffer) != NULL )                              \
  63             {                                                               \
  64                 (p_new_buffer)->start_date =                                \
  65                            ((aout_buffer_t *)p_previous_buffer)->start_date;\
  66                 (p_new_buffer)->end_date =                                  \
  67                            ((aout_buffer_t *)p_previous_buffer)->end_date;  \
  68             }                                                               \
  69         }                                                                   \
  70         /* we'll keep that for a while --Meuuh */                           \
  71         /* else printf("%s:%d\n", __FILE__, __LINE__); */                   \
  72     }
  73
  74 /****************************************************************************
  75  * Prototypes
  76  *****************************************************************************/
  77 /* From input.c : */
  78 int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input );
  79 int aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input );
  80 int aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
  81                     aout_buffer_t * p_buffer );
  82
  83 /* From filters.c : */
  84 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 );
  85 void aout_FiltersDestroyPipeline ( aout_instance_t * p_aout, aout_filter_t ** pp_filters, int i_nb_filters );
  86 void  aout_FiltersPlay ( aout_instance_t * p_aout, aout_filter_t ** pp_filters, int i_nb_filters, aout_buffer_t ** pp_input_buffer );
  87 void aout_FiltersHintBuffers( aout_instance_t * p_aout, aout_filter_t ** pp_filters, int i_nb_filters, aout_alloc_t * p_first_alloc );
  88
  89 /* From mixer.c : */
  90 int aout_MixerNew( aout_instance_t * p_aout );
  91 void aout_MixerDelete( aout_instance_t * p_aout );
  92 void aout_MixerRun( aout_instance_t * p_aout );
  93 int aout_MixerMultiplierSet( aout_instance_t * p_aout, float f_multiplier );
  94 int aout_MixerMultiplierGet( aout_instance_t * p_aout, float * pf_multiplier );
  95
  96 /* From output.c : */
  97 int aout_OutputNew( aout_instance_t * p_aout,
  98                     audio_sample_format_t * p_format );
  99 void aout_OutputPlay( aout_instance_t * p_aout, aout_buffer_t * p_buffer );
 100 void aout_OutputDelete( aout_instance_t * p_aout );
 101
 102
 103 /* From common.c : */
 104 #define aout_New(a) __aout_New(VLC_OBJECT(a))
 105 aout_instance_t * __aout_New ( vlc_object_t * );
 106 void aout_Delete ( aout_instance_t * );
 107
 108 void aout_FifoInit( aout_instance_t *, aout_fifo_t *, uint32_t );
 109 mtime_t aout_FifoNextStart( aout_instance_t *, aout_fifo_t * );
 110 void aout_FifoPush( aout_instance_t *, aout_fifo_t *, aout_buffer_t * );
 111 void aout_FifoSet( aout_instance_t *, aout_fifo_t *, mtime_t );
 112 void aout_FifoMoveDates( aout_instance_t *, aout_fifo_t *, mtime_t );
 113 void aout_FifoDestroy( aout_instance_t * p_aout, aout_fifo_t * p_fifo );
 114 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 );
 115
 116
 117 /* From intf.c :*/
 118 int aout_VolumeSoftGet( aout_instance_t *, audio_volume_t * );
 119 int aout_VolumeSoftSet( aout_instance_t *, audio_volume_t );
 120 int aout_VolumeSoftInfos( aout_instance_t *, audio_volume_t * );
 121 int aout_VolumeNoneGet( aout_instance_t *, audio_volume_t * );
 122 int aout_VolumeNoneSet( aout_instance_t *, audio_volume_t );
 123 int aout_VolumeNoneInfos( aout_instance_t *, audio_volume_t * );
 124
 125 /* From dec.c */
 126 #define aout_DecNew(a, b, c) __aout_DecNew(VLC_OBJECT(a), b, c)
 127 aout_input_t * __aout_DecNew( vlc_object_t *, aout_instance_t **, audio_sample_format_t * );
 128 int aout_DecDelete ( aout_instance_t *, aout_input_t * );
 129 aout_buffer_t * aout_DecNewBuffer( aout_instance_t *, aout_input_t *, size_t );
 130 void aout_DecDeleteBuffer( aout_instance_t *, aout_input_t *, aout_buffer_t * );
 131 int aout_DecPlay( aout_instance_t *, aout_input_t *, aout_buffer_t * );
 132