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- /*
- * QEMU Audio subsystem header
- *
- * Copyright (c) 2003-2005 Vassili Karpov (malc)
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
- #ifndef QEMU_AUDIO_INT_H
- #define QEMU_AUDIO_INT_H
- #ifdef CONFIG_COREAUDIO
- #define FLOAT_MIXENG
- /* #define RECIPROCAL */
- #endif
- #include "mixeng.h"
- struct audio_pcm_ops;
- typedef enum {
- AUD_OPT_INT,
- AUD_OPT_FMT,
- AUD_OPT_STR,
- AUD_OPT_BOOL
- } audio_option_tag_e;
- struct audio_option {
- const char *name;
- audio_option_tag_e tag;
- void *valp;
- const char *descr;
- int *overriddenp;
- int overridden;
- };
- struct audio_callback {
- void *opaque;
- audio_callback_fn fn;
- };
- struct audio_pcm_info {
- int bits;
- int sign;
- int freq;
- int nchannels;
- int align;
- int shift;
- int bytes_per_second;
- int swap_endianness;
- };
- typedef struct SWVoiceCap SWVoiceCap;
- typedef struct HWVoiceOut {
- int enabled;
- int poll_mode;
- int pending_disable;
- struct audio_pcm_info info;
- f_sample *clip;
- int rpos;
- uint64_t ts_helper;
- struct st_sample *mix_buf;
- int samples;
- QLIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head;
- QLIST_HEAD (sw_cap_listhead, SWVoiceCap) cap_head;
- int ctl_caps;
- struct audio_pcm_ops *pcm_ops;
- QLIST_ENTRY (HWVoiceOut) entries;
- } HWVoiceOut;
- typedef struct HWVoiceIn {
- int enabled;
- int poll_mode;
- struct audio_pcm_info info;
- t_sample *conv;
- int wpos;
- int total_samples_captured;
- uint64_t ts_helper;
- struct st_sample *conv_buf;
- int samples;
- QLIST_HEAD (sw_in_listhead, SWVoiceIn) sw_head;
- int ctl_caps;
- struct audio_pcm_ops *pcm_ops;
- QLIST_ENTRY (HWVoiceIn) entries;
- } HWVoiceIn;
- struct SWVoiceOut {
- QEMUSoundCard *card;
- struct audio_pcm_info info;
- t_sample *conv;
- int64_t ratio;
- struct st_sample *buf;
- void *rate;
- int total_hw_samples_mixed;
- int active;
- int empty;
- HWVoiceOut *hw;
- char *name;
- struct mixeng_volume vol;
- struct audio_callback callback;
- QLIST_ENTRY (SWVoiceOut) entries;
- };
- struct SWVoiceIn {
- QEMUSoundCard *card;
- int active;
- struct audio_pcm_info info;
- int64_t ratio;
- void *rate;
- int total_hw_samples_acquired;
- struct st_sample *buf;
- f_sample *clip;
- HWVoiceIn *hw;
- char *name;
- struct mixeng_volume vol;
- struct audio_callback callback;
- QLIST_ENTRY (SWVoiceIn) entries;
- };
- struct audio_driver {
- const char *name;
- const char *descr;
- struct audio_option *options;
- void *(*init) (void);
- void (*fini) (void *);
- struct audio_pcm_ops *pcm_ops;
- int can_be_default;
- int max_voices_out;
- int max_voices_in;
- int voice_size_out;
- int voice_size_in;
- int ctl_caps;
- };
- struct audio_pcm_ops {
- int (*init_out)(HWVoiceOut *hw, struct audsettings *as, void *drv_opaque);
- void (*fini_out)(HWVoiceOut *hw);
- int (*run_out) (HWVoiceOut *hw, int live);
- int (*write) (SWVoiceOut *sw, void *buf, int size);
- int (*ctl_out) (HWVoiceOut *hw, int cmd, ...);
- int (*init_in) (HWVoiceIn *hw, struct audsettings *as, void *drv_opaque);
- void (*fini_in) (HWVoiceIn *hw);
- int (*run_in) (HWVoiceIn *hw);
- int (*read) (SWVoiceIn *sw, void *buf, int size);
- int (*ctl_in) (HWVoiceIn *hw, int cmd, ...);
- };
- struct capture_callback {
- struct audio_capture_ops ops;
- void *opaque;
- QLIST_ENTRY (capture_callback) entries;
- };
- struct CaptureVoiceOut {
- HWVoiceOut hw;
- void *buf;
- QLIST_HEAD (cb_listhead, capture_callback) cb_head;
- QLIST_ENTRY (CaptureVoiceOut) entries;
- };
- struct SWVoiceCap {
- SWVoiceOut sw;
- CaptureVoiceOut *cap;
- QLIST_ENTRY (SWVoiceCap) entries;
- };
- struct AudioState {
- struct audio_driver *drv;
- void *drv_opaque;
- QEMUTimer *ts;
- QLIST_HEAD (card_listhead, QEMUSoundCard) card_head;
- QLIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in;
- QLIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out;
- QLIST_HEAD (cap_listhead, CaptureVoiceOut) cap_head;
- int nb_hw_voices_out;
- int nb_hw_voices_in;
- int vm_running;
- };
- extern struct audio_driver no_audio_driver;
- extern struct audio_driver oss_audio_driver;
- extern struct audio_driver sdl_audio_driver;
- extern struct audio_driver wav_audio_driver;
- extern struct audio_driver alsa_audio_driver;
- extern struct audio_driver coreaudio_audio_driver;
- extern struct audio_driver dsound_audio_driver;
- extern struct audio_driver pa_audio_driver;
- extern struct audio_driver spice_audio_driver;
- extern const struct mixeng_volume nominal_volume;
- void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as);
- void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len);
- int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int len);
- int audio_pcm_hw_get_live_in (HWVoiceIn *hw);
- int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int len);
- int audio_pcm_hw_clip_out (HWVoiceOut *hw, void *pcm_buf,
- int live, int pending);
- int audio_bug (const char *funcname, int cond);
- void *audio_calloc (const char *funcname, int nmemb, size_t size);
- void audio_run (const char *msg);
- #define VOICE_ENABLE 1
- #define VOICE_DISABLE 2
- #define VOICE_VOLUME 3
- #define VOICE_VOLUME_CAP (1 << VOICE_VOLUME)
- static inline int audio_ring_dist (int dst, int src, int len)
- {
- return (dst >= src) ? (dst - src) : (len - src + dst);
- }
- #define dolog(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
- #ifdef DEBUG
- #define ldebug(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
- #else
- #define ldebug(fmt, ...) (void)0
- #endif
- #define AUDIO_STRINGIFY_(n) #n
- #define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n)
- #if defined _MSC_VER || defined __GNUC__
- #define AUDIO_FUNC __FUNCTION__
- #else
- #define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__)
- #endif
- #endif /* QEMU_AUDIO_INT_H */
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