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 # include <vlc_aout_mixer.h>
31 struct vout_thread_t *(*pf_request_vout)( void *, struct vout_thread_t *,
32 video_format_t *, bool );
34 } aout_request_vout_t;
36 struct filter_owner_sys_t
38 aout_instance_t *p_aout;
39 aout_input_t *p_input;
42 block_t *aout_FilterBufferNew( filter_t *, int );
44 /** an input stream for the audio output */
47 /* When this lock is taken, the pipeline cannot be changed by a
51 audio_sample_format_t input;
54 filter_t * pp_filters[AOUT_MAX_FILTERS];
57 filter_t * p_playback_rate_filter;
60 filter_t * pp_resamplers[AOUT_MAX_FILTERS];
62 int i_resampling_type;
63 mtime_t i_resamp_start_date;
64 int i_resamp_start_drift;
66 /* Mixer information */
67 audio_replay_gain_t replay_gain;
69 /* If b_restart == 1, the input pipeline will be re-created. */
72 /* If b_error == 1, there is no input pipeline. */
75 /* last rate from input */
76 int i_last_input_rate;
87 aout_request_vout_t request_vout;
90 aout_mixer_input_t mixer;
93 /****************************************************************************
95 *****************************************************************************/
98 int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input, const aout_request_vout_t * );
99 int aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input );
100 int aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
101 aout_buffer_t * p_buffer, int i_input_rate );
102 void aout_InputCheckAndRestart( aout_instance_t * p_aout, aout_input_t * p_input );
103 bool aout_InputIsEmpty( aout_instance_t * p_aout, aout_input_t * p_input );
105 /* From filters.c : */
106 int aout_FiltersCreatePipeline ( aout_instance_t * p_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 );
107 void aout_FiltersDestroyPipeline ( aout_instance_t * p_aout, filter_t ** pp_filters, int i_nb_filters );
108 void aout_FiltersPlay ( filter_t ** pp_filters, unsigned i_nb_filters, aout_buffer_t ** pp_input_buffer );
111 int aout_MixerNew( aout_instance_t * p_aout );
112 void aout_MixerDelete( aout_instance_t * p_aout );
113 void aout_MixerRun( aout_instance_t * p_aout );
114 int aout_MixerMultiplierSet( aout_instance_t * p_aout, float f_multiplier );
116 /* From output.c : */
117 int aout_OutputNew( aout_instance_t * p_aout,
118 audio_sample_format_t * p_format );
119 void aout_OutputPlay( aout_instance_t * p_aout, aout_buffer_t * p_buffer );
120 void aout_OutputDelete( aout_instance_t * p_aout );
123 /* From common.c : */
124 #define aout_New(a) __aout_New(VLC_OBJECT(a))
125 /* Release with vlc_object_release() */
126 aout_instance_t * __aout_New ( vlc_object_t * );
128 void aout_FifoInit( aout_instance_t *, aout_fifo_t *, uint32_t );
129 mtime_t aout_FifoNextStart( aout_instance_t *, aout_fifo_t * );
130 void aout_FifoPush( aout_instance_t *, aout_fifo_t *, aout_buffer_t * );
131 void aout_FifoSet( aout_instance_t *, aout_fifo_t *, mtime_t );
132 void aout_FifoMoveDates( aout_instance_t *, aout_fifo_t *, mtime_t );
133 void aout_FifoDestroy( aout_instance_t * p_aout, aout_fifo_t * p_fifo );
134 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 );
135 bool aout_ChangeFilterString( vlc_object_t *, aout_instance_t *, const char *psz_variable, const char *psz_name, bool b_add );
138 aout_input_t *aout_DecNew( aout_instance_t *, audio_sample_format_t *,
139 const audio_replay_gain_t *, const aout_request_vout_t * );
140 int aout_DecDelete ( aout_instance_t *, aout_input_t * );
141 aout_buffer_t * aout_DecNewBuffer( aout_input_t *, size_t );
142 void aout_DecDeleteBuffer( aout_instance_t *, aout_input_t *, aout_buffer_t * );
143 int aout_DecPlay( aout_instance_t *, aout_input_t *, aout_buffer_t *, int i_input_rate );
144 int aout_DecGetResetLost( aout_instance_t *, aout_input_t * );
145 void aout_DecChangePause( aout_instance_t *, aout_input_t *, bool b_paused, mtime_t i_date );
146 void aout_DecFlush( aout_instance_t *, aout_input_t * );
148 /* Audio output locking */
150 #if !defined (NDEBUG) \
151 && defined __linux__ && (defined (__i386__) || defined (__x86_64__))
152 # define AOUT_DEBUG 1
165 void aout_lock (unsigned);
166 void aout_unlock (unsigned);
169 # define aout_lock( i ) (void)0
170 # define aout_unlock( i ) (void)0
173 static inline void aout_lock_mixer( aout_instance_t *p_aout )
175 aout_lock( MIXER_LOCK );
176 vlc_mutex_lock( &p_aout->mixer_lock );
179 static inline void aout_unlock_mixer( aout_instance_t *p_aout )
181 aout_unlock( MIXER_LOCK );
182 vlc_mutex_unlock( &p_aout->mixer_lock );
185 static inline void aout_lock_input_fifos( aout_instance_t *p_aout )
187 aout_lock( INPUT_FIFO_LOCK );
188 vlc_mutex_lock( &p_aout->input_fifos_lock );
191 static inline void aout_unlock_input_fifos( aout_instance_t *p_aout )
193 aout_unlock( INPUT_FIFO_LOCK );
194 vlc_mutex_unlock( &p_aout->input_fifos_lock );
197 static inline void aout_lock_output_fifo( aout_instance_t *p_aout )
199 aout_lock( OUTPUT_FIFO_LOCK );
200 vlc_mutex_lock( &p_aout->output_fifo_lock );
203 static inline void aout_unlock_output_fifo( aout_instance_t *p_aout )
205 aout_unlock( OUTPUT_FIFO_LOCK );
206 vlc_mutex_unlock( &p_aout->output_fifo_lock );
209 static inline void aout_lock_input( aout_instance_t *p_aout, aout_input_t * p_input )
212 aout_lock( INPUT_LOCK );
213 vlc_mutex_lock( &p_input->lock );
216 static inline void aout_unlock_input( aout_instance_t *p_aout, aout_input_t * p_input )
219 aout_unlock( INPUT_LOCK );
220 vlc_mutex_unlock( &p_input->lock );
223 static inline void aout_lock_volume( aout_instance_t *p_aout )
225 aout_lock( VOLUME_VARS_LOCK );
226 vlc_mutex_lock( &p_aout->volume_vars_lock );
229 static inline void aout_unlock_volume( aout_instance_t *p_aout )
231 aout_unlock( VOLUME_VARS_LOCK );
232 vlc_mutex_unlock( &p_aout->volume_vars_lock );
238 * This function will safely mark aout input to be restarted as soon as
239 * possible to take configuration changes into account */
240 static inline void AoutInputsMarkToRestart( aout_instance_t *p_aout )
243 aout_lock_mixer( p_aout );
244 for( i = 0; i < p_aout->i_nb_inputs; i++ )
245 p_aout->pp_inputs[i]->b_restart = true;
246 aout_unlock_mixer( p_aout );
249 #endif /* !LIBVLC_AOUT_INTERNAL_H */