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 #ifndef LIBVLC_AOUT_INTERNAL_H
25 # define LIBVLC_AOUT_INTERNAL_H 1
27 /* Max input rate factor (1/4 -> 4) */
28 # define AOUT_MAX_INPUT_RATE (4)
31 AOUT_RESAMPLING_NONE=0,
36 # include <vlc_aout_mixer.h>
40 struct vout_thread_t *(*pf_request_vout)( void *, struct vout_thread_t *,
41 video_format_t *, bool );
43 } aout_request_vout_t;
45 struct filter_owner_sys_t
47 audio_output_t *p_aout;
48 aout_input_t *p_input;
51 block_t *aout_FilterBufferNew( filter_t *, int );
53 /** an input stream for the audio output */
56 audio_sample_format_t input;
57 float multiplier; /**< Replay gain multiplier */
60 filter_t * pp_filters[AOUT_MAX_FILTERS];
63 filter_t * p_playback_rate_filter;
66 filter_t * pp_resamplers[AOUT_MAX_FILTERS];
68 int i_resampling_type;
69 mtime_t i_resamp_start_date;
70 int i_resamp_start_drift;
72 /* Mixer information */
73 audio_replay_gain_t replay_gain;
75 /* If b_restart == 1, the input pipeline will be re-created. */
78 /* If b_error == 1, there is no input pipeline. */
81 /* last rate from input */
82 int i_last_input_rate;
93 aout_request_vout_t request_vout;
99 /****************************************************************************
101 *****************************************************************************/
104 int aout_InputNew( audio_output_t * p_aout, aout_input_t * p_input, const aout_request_vout_t * );
105 int aout_InputDelete( audio_output_t * p_aout, aout_input_t * p_input );
106 void aout_InputPlay( audio_output_t * p_aout, aout_input_t * p_input,
107 aout_buffer_t * p_buffer, int i_input_rate );
108 void aout_InputCheckAndRestart( audio_output_t * p_aout, aout_input_t * p_input );
110 /* From filters.c : */
111 int aout_FiltersCreatePipeline( audio_output_t *, filter_t **, int *,
112 const audio_sample_format_t *, const audio_sample_format_t * );
113 void aout_FiltersDestroyPipeline( filter_t *const *, unsigned );
114 void aout_FiltersPlay( filter_t *const *, unsigned, aout_buffer_t ** );
117 int aout_MixerNew( audio_output_t * p_aout );
118 void aout_MixerDelete( audio_output_t * p_aout );
119 void aout_MixerRun( audio_output_t * p_aout, float );
121 /* From output.c : */
122 int aout_OutputNew( audio_output_t * p_aout,
123 const audio_sample_format_t * p_format );
124 void aout_OutputPlay( audio_output_t * p_aout, aout_buffer_t * p_buffer );
125 void aout_OutputPause( audio_output_t * p_aout, bool, mtime_t );
126 void aout_OutputDelete( audio_output_t * p_aout );
129 /* From common.c : */
130 /* Release with vlc_object_release() */
131 audio_output_t *aout_New ( vlc_object_t * );
132 #define aout_New(a) aout_New(VLC_OBJECT(a))
134 void aout_FifoInit( vlc_object_t *, aout_fifo_t *, uint32_t );
135 #define aout_FifoInit(o, f, r) aout_FifoInit(VLC_OBJECT(o), f, r)
136 mtime_t aout_FifoNextStart( const aout_fifo_t * ) VLC_USED;
137 void aout_FifoPush( aout_fifo_t *, aout_buffer_t * );
138 void aout_FifoSet( aout_fifo_t *, mtime_t );
139 void aout_FifoMoveDates( aout_fifo_t *, mtime_t );
140 void aout_FifoDestroy( aout_fifo_t * p_fifo );
141 void aout_FormatsPrint( audio_output_t * p_aout, const char * psz_text, const audio_sample_format_t * p_format1, const audio_sample_format_t * p_format2 );
142 bool aout_ChangeFilterString( vlc_object_t *, audio_output_t *, const char *psz_variable, const char *psz_name, bool b_add );
145 aout_input_t *aout_DecNew( audio_output_t *, audio_sample_format_t *,
146 const audio_replay_gain_t *, const aout_request_vout_t * );
147 void aout_DecDelete ( audio_output_t *, aout_input_t * );
148 aout_buffer_t * aout_DecNewBuffer( aout_input_t *, size_t );
149 void aout_DecDeleteBuffer( audio_output_t *, aout_input_t *, aout_buffer_t * );
150 int aout_DecPlay( audio_output_t *, aout_input_t *, aout_buffer_t *, int i_input_rate );
151 int aout_DecGetResetLost( audio_output_t *, aout_input_t * );
152 void aout_DecChangePause( audio_output_t *, aout_input_t *, bool b_paused, mtime_t i_date );
153 void aout_DecFlush( audio_output_t *, aout_input_t * );
154 bool aout_DecIsEmpty( audio_output_t * p_aout, aout_input_t * p_input );
156 /* Audio output locking */
158 #if !defined (NDEBUG) \
159 && defined __linux__ && (defined (__i386__) || defined (__x86_64__))
160 # define AOUT_DEBUG 1
170 void aout_lock_check (unsigned);
171 void aout_unlock_check (unsigned);
174 # define aout_lock_check( i ) (void)0
175 # define aout_unlock_check( i ) (void)0
178 static inline void aout_lock( audio_output_t *p_aout )
180 aout_lock_check( OUTPUT_LOCK );
181 vlc_mutex_lock( &p_aout->lock );
184 static inline void aout_unlock( audio_output_t *p_aout )
186 aout_unlock_check( OUTPUT_LOCK );
187 vlc_mutex_unlock( &p_aout->lock );
190 static inline void aout_lock_volume( audio_output_t *p_aout )
192 aout_lock_check( VOLUME_LOCK );
193 vlc_mutex_lock( &p_aout->volume_lock );
196 static inline void aout_unlock_volume( audio_output_t *p_aout )
198 aout_unlock_check( VOLUME_LOCK );
199 vlc_mutex_unlock( &p_aout->volume_lock );
205 * This function will safely mark aout input to be restarted as soon as
206 * possible to take configuration changes into account */
207 static inline void AoutInputsMarkToRestart( audio_output_t *p_aout )
210 if( p_aout->p_input != NULL )
211 p_aout->p_input->b_restart = true;
212 aout_unlock( p_aout );
215 #endif /* !LIBVLC_AOUT_INTERNAL_H */