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 #if defined(__PLUGIN__) || defined(__BUILTIN__) || !defined(__LIBVLC__)
25 # error This header file can only be included from LibVLC.
28 #ifndef __LIBVLC_AOUT_INTERNAL_H
29 # define __LIBVLC_AOUT_INTERNAL_H 1
31 aout_buffer_t *aout_BufferAlloc(aout_alloc_t *allocation, mtime_t microseconds,
32 aout_buffer_t *old_buffer);
34 struct aout_filter_owner_sys_t
36 aout_instance_t *p_aout;
37 aout_input_t *p_input;
40 /** an input stream for the audio output */
43 /* When this lock is taken, the pipeline cannot be changed by a
47 audio_sample_format_t input;
48 aout_alloc_t input_alloc;
51 aout_filter_t * pp_filters[AOUT_MAX_FILTERS];
54 aout_filter_t * p_playback_rate_filter;
57 aout_filter_t * pp_resamplers[AOUT_MAX_FILTERS];
59 int i_resampling_type;
60 mtime_t i_resamp_start_date;
61 int i_resamp_start_drift;
63 /* Mixer information */
64 audio_replay_gain_t replay_gain;
66 /* If b_restart == 1, the input pipeline will be re-created. */
69 /* If b_error == 1, there is no input pipeline. */
72 /* Did we just change the output format? (expect buffer inconsistencies) */
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 );
103 /* From filters.c : */
104 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 );
105 void aout_FiltersDestroyPipeline ( aout_instance_t * p_aout, aout_filter_t ** pp_filters, int i_nb_filters );
106 void aout_FiltersPlay ( aout_instance_t * p_aout, aout_filter_t ** pp_filters, int i_nb_filters, aout_buffer_t ** pp_input_buffer );
107 void aout_FiltersHintBuffers( aout_instance_t * p_aout, aout_filter_t ** pp_filters, int i_nb_filters, aout_alloc_t * p_first_alloc );
110 int aout_MixerNew( aout_instance_t * p_aout );
111 void aout_MixerDelete( aout_instance_t * p_aout );
112 void aout_MixerRun( aout_instance_t * p_aout );
113 int aout_MixerMultiplierSet( aout_instance_t * p_aout, float f_multiplier );
114 int aout_MixerMultiplierGet( aout_instance_t * p_aout, float * pf_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 );
138 int aout_VolumeSoftGet( aout_instance_t *, audio_volume_t * );
139 int aout_VolumeSoftSet( aout_instance_t *, audio_volume_t );
140 int aout_VolumeSoftInfos( aout_instance_t *, audio_volume_t * );
141 int aout_VolumeNoneGet( aout_instance_t *, audio_volume_t * );
142 int aout_VolumeNoneSet( aout_instance_t *, audio_volume_t );
143 int aout_VolumeNoneInfos( aout_instance_t *, audio_volume_t * );
146 #define aout_DecNew(a, b, c, d, e) __aout_DecNew(VLC_OBJECT(a), b, c, d, e)
147 aout_input_t * __aout_DecNew( vlc_object_t *, aout_instance_t **,
148 audio_sample_format_t *, const audio_replay_gain_t *,
149 const aout_request_vout_t * );
150 int aout_DecDelete ( aout_instance_t *, aout_input_t * );
151 aout_buffer_t * aout_DecNewBuffer( aout_input_t *, size_t );
152 void aout_DecDeleteBuffer( aout_instance_t *, aout_input_t *, aout_buffer_t * );
153 int aout_DecPlay( aout_instance_t *, aout_input_t *, aout_buffer_t *, int i_input_rate );
154 int aout_DecGetResetLost( aout_instance_t *, aout_input_t * );
155 void aout_DecChangePause( aout_instance_t *, aout_input_t *, bool b_paused, mtime_t i_date );
156 void aout_DecFlush( aout_instance_t *, aout_input_t * );
160 static inline void aout_lock_mixer( aout_instance_t *p_aout )
162 vlc_mutex_lock( &p_aout->mixer_lock );
165 static inline void aout_unlock_mixer( aout_instance_t *p_aout )
167 vlc_mutex_unlock( &p_aout->mixer_lock );
170 static inline void aout_lock_input_fifos( aout_instance_t *p_aout )
172 vlc_mutex_lock( &p_aout->input_fifos_lock );
175 static inline void aout_unlock_input_fifos( aout_instance_t *p_aout )
177 vlc_mutex_unlock( &p_aout->input_fifos_lock );
180 static inline void aout_lock_output_fifo( aout_instance_t *p_aout )
182 vlc_mutex_lock( &p_aout->output_fifo_lock );
185 static inline void aout_unlock_output_fifo( aout_instance_t *p_aout )
187 vlc_mutex_unlock( &p_aout->output_fifo_lock );
190 static inline void aout_lock_input( aout_instance_t *p_aout, aout_input_t * p_input )
193 vlc_mutex_lock( &p_input->lock );
196 static inline void aout_unlock_input( aout_instance_t *p_aout, aout_input_t * p_input )
199 vlc_mutex_unlock( &p_input->lock );
204 * This function will safely mark aout input to be restarted as soon as
205 * possible to take configuration changes into account */
206 static inline void AoutInputsMarkToRestart( aout_instance_t *p_aout )
209 aout_lock_mixer( p_aout );
210 for( i = 0; i < p_aout->i_nb_inputs; i++ )
211 p_aout->pp_inputs[i]->b_restart = true;
212 aout_unlock_mixer( p_aout );
215 /* This function will add or remove a a module from a string list (comma
216 * separated). It will return true if there is a modification
217 * In case p_aout is NULL, we will use configuration instead of variable */
218 static inline bool AoutChangeFilterString( vlc_object_t *p_obj, aout_instance_t * p_aout,
219 const char* psz_variable,
220 const char *psz_name, bool b_add )
225 if( *psz_name == '\0' )
229 psz_val = var_GetString( p_aout, psz_variable );
231 psz_val = config_GetPsz( p_obj, "audio-filter" );
234 psz_val = strdup( "" );
236 psz_parser = strstr( psz_val, psz_name );
238 if( ( b_add && psz_parser ) || ( !b_add && !psz_parser ) )
247 char *psz_old = psz_val;
250 if( asprintf( &psz_val, "%s:%s", psz_old, psz_name ) == -1 )
254 psz_val = strdup( psz_name );
259 const int i_name = strlen( psz_name );
260 const char *psz_next;
262 psz_next = &psz_parser[i_name];
263 if( *psz_next == ':' )
266 memmove( psz_parser, psz_next, strlen(psz_next)+1 );
270 var_SetString( p_aout, psz_variable, psz_val );
272 config_PutPsz( p_obj, psz_variable, psz_val );
277 #endif /* !__LIBVLC_AOUT_INTERNAL_H */