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1.1 root 1: /*
2: * QEMU Audio subsystem header
1.1.1.2 ! root 3: *
! 4: * Copyright (c) 2003-2005 Vassili Karpov (malc)
! 5: *
1.1 root 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:
12: *
13: * The above copyright notice and this permission notice shall be included in
14: * all copies or substantial portions of the Software.
15: *
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
22: * THE SOFTWARE.
23: */
24: #ifndef QEMU_AUDIO_H
25: #define QEMU_AUDIO_H
26:
1.1.1.2 ! root 27: #include "sys-queue.h"
! 28:
! 29: typedef void (*audio_callback_fn_t) (void *opaque, int avail);
1.1 root 30:
31: typedef enum {
1.1.1.2 ! root 32: AUD_FMT_U8,
! 33: AUD_FMT_S8,
! 34: AUD_FMT_U16,
! 35: AUD_FMT_S16
1.1 root 36: } audfmt_e;
37:
1.1.1.2 ! root 38: typedef struct {
! 39: int freq;
! 40: int nchannels;
! 41: audfmt_e fmt;
! 42: } audsettings_t;
! 43:
! 44: typedef struct AudioState AudioState;
! 45: typedef struct SWVoiceOut SWVoiceOut;
! 46: typedef struct SWVoiceIn SWVoiceIn;
! 47:
! 48: typedef struct QEMUSoundCard {
! 49: AudioState *audio;
! 50: char *name;
! 51: LIST_ENTRY (QEMUSoundCard) entries;
! 52: } QEMUSoundCard;
! 53:
! 54: typedef struct QEMUAudioTimeStamp {
! 55: uint64_t old_ts;
! 56: } QEMUAudioTimeStamp;
! 57:
! 58: void AUD_vlog (const char *cap, const char *fmt, va_list ap);
! 59: void AUD_log (const char *cap, const char *fmt, ...)
! 60: #ifdef __GNUC__
! 61: __attribute__ ((__format__ (__printf__, 2, 3)))
! 62: #endif
! 63: ;
! 64:
! 65: AudioState *AUD_init (void);
! 66: void AUD_help (void);
! 67: void AUD_register_card (AudioState *s, const char *name, QEMUSoundCard *card);
! 68: void AUD_remove_card (QEMUSoundCard *card);
! 69:
! 70: SWVoiceOut *AUD_open_out (
! 71: QEMUSoundCard *card,
! 72: SWVoiceOut *sw,
! 73: const char *name,
! 74: void *callback_opaque,
! 75: audio_callback_fn_t callback_fn,
! 76: audsettings_t *settings,
! 77: int sw_endian
! 78: );
! 79:
! 80: void AUD_close_out (QEMUSoundCard *card, SWVoiceOut *sw);
! 81: int AUD_write (SWVoiceOut *sw, void *pcm_buf, int size);
! 82: int AUD_get_buffer_size_out (SWVoiceOut *sw);
! 83: void AUD_set_active_out (SWVoiceOut *sw, int on);
! 84: int AUD_is_active_out (SWVoiceOut *sw);
! 85:
! 86: void AUD_init_time_stamp_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts);
! 87: uint64_t AUD_get_elapsed_usec_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts);
! 88:
! 89: SWVoiceIn *AUD_open_in (
! 90: QEMUSoundCard *card,
! 91: SWVoiceIn *sw,
! 92: const char *name,
! 93: void *callback_opaque,
! 94: audio_callback_fn_t callback_fn,
! 95: audsettings_t *settings,
! 96: int sw_endian
! 97: );
! 98:
! 99: void AUD_close_in (QEMUSoundCard *card, SWVoiceIn *sw);
! 100: int AUD_read (SWVoiceIn *sw, void *pcm_buf, int size);
! 101: void AUD_set_active_in (SWVoiceIn *sw, int on);
! 102: int AUD_is_active_in (SWVoiceIn *sw);
1.1 root 103:
1.1.1.2 ! root 104: void AUD_init_time_stamp_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts);
! 105: uint64_t AUD_get_elapsed_usec_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts);
1.1 root 106:
107: static inline void *advance (void *p, int incr)
108: {
109: uint8_t *d = p;
110: return (d + incr);
111: }
112:
113: uint32_t popcount (uint32_t u);
114: inline uint32_t lsbindex (uint32_t u);
115:
1.1.1.2 ! root 116: #ifdef __GNUC__
! 117: #define audio_MIN(a, b) ( __extension__ ({ \
! 118: __typeof (a) ta = a; \
! 119: __typeof (b) tb = b; \
! 120: ((ta)>(tb)?(tb):(ta)); \
! 121: }))
! 122:
! 123: #define audio_MAX(a, b) ( __extension__ ({ \
! 124: __typeof (a) ta = a; \
! 125: __typeof (b) tb = b; \
! 126: ((ta)<(tb)?(tb):(ta)); \
! 127: }))
! 128: #else
1.1 root 129: #define audio_MIN(a, b) ((a)>(b)?(b):(a))
130: #define audio_MAX(a, b) ((a)<(b)?(b):(a))
1.1.1.2 ! root 131: #endif
1.1 root 132:
133: #endif /* audio.h */
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