--- /dev/null
+/*
+ * 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 /* audio_int.h */
Code Review / kvmfornfv.git / blobdiff