2 * QEMU Audio subsystem header
4 * Copyright (c) 2003-2004 Vassili Karpov (malc)
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 #ifndef QEMU_AUDIO_INT_H
25 #define QEMU_AUDIO_INT_H
31 typedef struct HWVoice
{
54 struct SWVoice
**pvoice
;
55 struct pcm_ops
*pcm_ops
;
58 extern struct pcm_ops oss_pcm_ops
;
59 extern struct audio_output_driver oss_output_driver
;
61 extern struct pcm_ops sdl_pcm_ops
;
62 extern struct audio_output_driver sdl_output_driver
;
64 extern struct pcm_ops wav_pcm_ops
;
65 extern struct audio_output_driver wav_output_driver
;
67 extern struct pcm_ops fmod_pcm_ops
;
68 extern struct audio_output_driver fmod_output_driver
;
70 struct audio_output_driver
{
73 void (*fini
) (void *);
74 struct pcm_ops
*pcm_ops
;
80 typedef struct AudioState
{
87 int64_t ticks_threshold
;
90 struct audio_output_driver
*drv
;
92 extern AudioState audio_state
;
106 int bytes_per_second
;
120 int (*init
) (HWVoice
*hw
, int freq
, int nchannels
, audfmt_e fmt
);
121 void (*fini
) (HWVoice
*hw
);
122 void (*run
) (HWVoice
*hw
);
123 int (*write
) (SWVoice
*sw
, void *buf
, int size
);
124 int (*ctl
) (HWVoice
*hw
, int cmd
, ...);
127 void pcm_sw_free_resources (SWVoice
*sw
);
128 int pcm_sw_alloc_resources (SWVoice
*sw
);
129 void pcm_sw_fini (SWVoice
*sw
);
130 int pcm_sw_init (SWVoice
*sw
, HWVoice
*hw
, int freq
,
131 int nchannels
, audfmt_e fmt
);
133 void pcm_hw_clear (HWVoice
*hw
, void *buf
, int len
);
134 HWVoice
* pcm_hw_find_any (HWVoice
*hw
);
135 HWVoice
* pcm_hw_find_any_active (HWVoice
*hw
);
136 HWVoice
* pcm_hw_find_any_passive (HWVoice
*hw
);
137 HWVoice
* pcm_hw_find_specific (HWVoice
*hw
, int freq
,
138 int nchannels
, audfmt_e fmt
);
139 HWVoice
* pcm_hw_add (int freq
, int nchannels
, audfmt_e fmt
);
140 int pcm_hw_add_sw (HWVoice
*hw
, SWVoice
*sw
);
141 int pcm_hw_del_sw (HWVoice
*hw
, SWVoice
*sw
);
142 SWVoice
* pcm_create_voice_pair (int freq
, int nchannels
, audfmt_e fmt
);
144 void pcm_hw_free_resources (HWVoice
*hw
);
145 int pcm_hw_alloc_resources (HWVoice
*hw
);
146 void pcm_hw_fini (HWVoice
*hw
);
147 void pcm_hw_gc (HWVoice
*hw
);
148 int pcm_hw_get_live (HWVoice
*hw
);
149 int pcm_hw_get_live2 (HWVoice
*hw
, int *nb_active
);
150 void pcm_hw_dec_live (HWVoice
*hw
, int decr
);
151 int pcm_hw_write (SWVoice
*sw
, void *buf
, int len
);
153 int audio_get_conf_int (const char *key
, int defval
);
154 const char *audio_get_conf_str (const char *key
, const char *defval
);
156 struct audio_output_driver
;
158 #define VOICE_ENABLE 1
159 #define VOICE_DISABLE 2
161 #endif /* audio_int.h */