diff options
Diffstat (limited to 'audio/audio.c')
| -rw-r--r-- | audio/audio.c | 347 |
1 files changed, 201 insertions, 146 deletions
diff --git a/audio/audio.c b/audio/audio.c index c8b88d892d..7d715332c9 100644 --- a/audio/audio.c +++ b/audio/audio.c @@ -87,7 +87,8 @@ audio_driver *audio_driver_lookup(const char *name) return NULL; } -static AudioState glob_audio_state; +static QTAILQ_HEAD(AudioStateHead, AudioState) audio_states = + QTAILQ_HEAD_INITIALIZER(audio_states); const struct mixeng_volume nominal_volume = { .mute = 0, @@ -100,6 +101,8 @@ const struct mixeng_volume nominal_volume = { #endif }; +static bool legacy_config = true; + #ifdef AUDIO_IS_FLAWLESS_AND_NO_CHECKS_ARE_REQURIED #error No its not #else @@ -306,6 +309,7 @@ void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as) case AUDIO_FORMAT_S16: sign = 1; + /* fall through */ case AUDIO_FORMAT_U16: bits = 16; shift = 1; @@ -313,6 +317,7 @@ void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as) case AUDIO_FORMAT_S32: sign = 1; + /* fall through */ case AUDIO_FORMAT_U32: bits = 32; shift = 2; @@ -399,12 +404,10 @@ static void noop_conv (struct st_sample *dst, const void *src, int samples) (void) samples; } -static CaptureVoiceOut *audio_pcm_capture_find_specific ( - struct audsettings *as - ) +static CaptureVoiceOut *audio_pcm_capture_find_specific(AudioState *s, + struct audsettings *as) { CaptureVoiceOut *cap; - AudioState *s = &glob_audio_state; for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) { if (audio_pcm_info_eq (&cap->hw.info, as)) { @@ -481,7 +484,7 @@ static void audio_detach_capture (HWVoiceOut *hw) static int audio_attach_capture (HWVoiceOut *hw) { - AudioState *s = &glob_audio_state; + AudioState *s = hw->s; CaptureVoiceOut *cap; audio_detach_capture (hw); @@ -525,41 +528,41 @@ static int audio_attach_capture (HWVoiceOut *hw) /* * Hard voice (capture) */ -static int audio_pcm_hw_find_min_in (HWVoiceIn *hw) +static size_t audio_pcm_hw_find_min_in (HWVoiceIn *hw) { SWVoiceIn *sw; - int m = hw->total_samples_captured; + size_t m = hw->total_samples_captured; for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) { if (sw->active) { - m = audio_MIN (m, sw->total_hw_samples_acquired); + m = MIN (m, sw->total_hw_samples_acquired); } } return m; } -int audio_pcm_hw_get_live_in (HWVoiceIn *hw) +size_t audio_pcm_hw_get_live_in(HWVoiceIn *hw) { - int live = hw->total_samples_captured - audio_pcm_hw_find_min_in (hw); - if (audio_bug(__func__, live < 0 || live > hw->samples)) { - dolog ("live=%d hw->samples=%d\n", live, hw->samples); + size_t live = hw->total_samples_captured - audio_pcm_hw_find_min_in (hw); + if (audio_bug(__func__, live > hw->samples)) { + dolog("live=%zu hw->samples=%zu\n", live, hw->samples); return 0; } return live; } -int audio_pcm_hw_clip_out (HWVoiceOut *hw, void *pcm_buf, - int live, int pending) +size_t audio_pcm_hw_clip_out(HWVoiceOut *hw, void *pcm_buf, + size_t live, size_t pending) { - int left = hw->samples - pending; - int len = audio_MIN (left, live); - int clipped = 0; + size_t left = hw->samples - pending; + size_t len = MIN (left, live); + size_t clipped = 0; while (len) { struct st_sample *src = hw->mix_buf + hw->rpos; uint8_t *dst = advance (pcm_buf, hw->rpos << hw->info.shift); - int samples_till_end_of_buf = hw->samples - hw->rpos; - int samples_to_clip = audio_MIN (len, samples_till_end_of_buf); + size_t samples_till_end_of_buf = hw->samples - hw->rpos; + size_t samples_to_clip = MIN (len, samples_till_end_of_buf); hw->clip (dst, src, samples_to_clip); @@ -573,14 +576,14 @@ int audio_pcm_hw_clip_out (HWVoiceOut *hw, void *pcm_buf, /* * Soft voice (capture) */ -static int audio_pcm_sw_get_rpos_in (SWVoiceIn *sw) +static size_t audio_pcm_sw_get_rpos_in(SWVoiceIn *sw) { HWVoiceIn *hw = sw->hw; - int live = hw->total_samples_captured - sw->total_hw_samples_acquired; - int rpos; + ssize_t live = hw->total_samples_captured - sw->total_hw_samples_acquired; + ssize_t rpos; if (audio_bug(__func__, live < 0 || live > hw->samples)) { - dolog ("live=%d hw->samples=%d\n", live, hw->samples); + dolog("live=%zu hw->samples=%zu\n", live, hw->samples); return 0; } @@ -593,17 +596,17 @@ static int audio_pcm_sw_get_rpos_in (SWVoiceIn *sw) } } -int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int size) +static size_t audio_pcm_sw_read(SWVoiceIn *sw, void *buf, size_t size) { HWVoiceIn *hw = sw->hw; - int samples, live, ret = 0, swlim, isamp, osamp, rpos, total = 0; + size_t samples, live, ret = 0, swlim, isamp, osamp, rpos, total = 0; struct st_sample *src, *dst = sw->buf; rpos = audio_pcm_sw_get_rpos_in (sw) % hw->samples; live = hw->total_samples_captured - sw->total_hw_samples_acquired; - if (audio_bug(__func__, live < 0 || live > hw->samples)) { - dolog ("live_in=%d hw->samples=%d\n", live, hw->samples); + if (audio_bug(__func__, live > hw->samples)) { + dolog("live_in=%zu hw->samples=%zu\n", live, hw->samples); return 0; } @@ -613,13 +616,13 @@ int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int size) } swlim = (live * sw->ratio) >> 32; - swlim = audio_MIN (swlim, samples); + swlim = MIN (swlim, samples); while (swlim) { src = hw->conv_buf + rpos; - isamp = hw->wpos - rpos; - /* XXX: <= ? */ - if (isamp <= 0) { + if (hw->wpos > rpos) { + isamp = hw->wpos - rpos; + } else { isamp = hw->samples - rpos; } @@ -628,11 +631,6 @@ int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int size) } osamp = swlim; - if (audio_bug(__func__, osamp < 0)) { - dolog ("osamp=%d\n", osamp); - return 0; - } - st_rate_flow (sw->rate, src, dst, &isamp, &osamp); swlim -= osamp; rpos = (rpos + isamp) % hw->samples; @@ -653,15 +651,15 @@ int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int size) /* * Hard voice (playback) */ -static int audio_pcm_hw_find_min_out (HWVoiceOut *hw, int *nb_livep) +static size_t audio_pcm_hw_find_min_out (HWVoiceOut *hw, int *nb_livep) { SWVoiceOut *sw; - int m = INT_MAX; + size_t m = SIZE_MAX; int nb_live = 0; for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) { if (sw->active || !sw->empty) { - m = audio_MIN (m, sw->total_hw_samples_mixed); + m = MIN (m, sw->total_hw_samples_mixed); nb_live += 1; } } @@ -670,9 +668,9 @@ static int audio_pcm_hw_find_min_out (HWVoiceOut *hw, int *nb_livep) return m; } -static int audio_pcm_hw_get_live_out (HWVoiceOut *hw, int *nb_live) +static size_t audio_pcm_hw_get_live_out (HWVoiceOut *hw, int *nb_live) { - int smin; + size_t smin; int nb_live1; smin = audio_pcm_hw_find_min_out (hw, &nb_live1); @@ -681,10 +679,10 @@ static int audio_pcm_hw_get_live_out (HWVoiceOut *hw, int *nb_live) } if (nb_live1) { - int live = smin; + size_t live = smin; - if (audio_bug(__func__, live < 0 || live > hw->samples)) { - dolog ("live=%d hw->samples=%d\n", live, hw->samples); + if (audio_bug(__func__, live > hw->samples)) { + dolog("live=%zu hw->samples=%zu\n", live, hw->samples); return 0; } return live; @@ -695,10 +693,10 @@ static int audio_pcm_hw_get_live_out (HWVoiceOut *hw, int *nb_live) /* * Soft voice (playback) */ -int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int size) +static size_t audio_pcm_sw_write(SWVoiceOut *sw, void *buf, size_t size) { - int hwsamples, samples, isamp, osamp, wpos, live, dead, left, swlim, blck; - int ret = 0, pos = 0, total = 0; + size_t hwsamples, samples, isamp, osamp, wpos, live, dead, left, swlim, blck; + size_t ret = 0, pos = 0, total = 0; if (!sw) { return size; @@ -707,8 +705,8 @@ int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int size) hwsamples = sw->hw->samples; live = sw->total_hw_samples_mixed; - if (audio_bug(__func__, live < 0 || live > hwsamples)) { - dolog ("live=%d hw->samples=%d\n", live, hwsamples); + if (audio_bug(__func__, live > hwsamples)) { + dolog("live=%zu hw->samples=%zu\n", live, hwsamples); return 0; } @@ -724,7 +722,7 @@ int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int size) dead = hwsamples - live; swlim = ((int64_t) dead << 32) / sw->ratio; - swlim = audio_MIN (swlim, samples); + swlim = MIN (swlim, samples); if (swlim) { sw->conv (sw->buf, buf, swlim); @@ -736,7 +734,7 @@ int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int size) while (swlim) { dead = hwsamples - live; left = hwsamples - wpos; - blck = audio_MIN (dead, left); + blck = MIN (dead, left); if (!blck) { break; } @@ -762,7 +760,7 @@ int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int size) #ifdef DEBUG_OUT dolog ( - "%s: write size %d ret %d total sw %d\n", + "%s: write size %zu ret %zu total sw %zu\n", SW_NAME (sw), size >> sw->info.shift, ret, @@ -789,19 +787,15 @@ static void audio_pcm_print_info (const char *cap, struct audio_pcm_info *info) /* * Timer */ - -static bool audio_timer_running; -static uint64_t audio_timer_last; - -static int audio_is_timer_needed (void) +static int audio_is_timer_needed(AudioState *s) { HWVoiceIn *hwi = NULL; HWVoiceOut *hwo = NULL; - while ((hwo = audio_pcm_hw_find_any_enabled_out (hwo))) { + while ((hwo = audio_pcm_hw_find_any_enabled_out(s, hwo))) { if (!hwo->poll_mode) return 1; } - while ((hwi = audio_pcm_hw_find_any_enabled_in (hwi))) { + while ((hwi = audio_pcm_hw_find_any_enabled_in(s, hwi))) { if (!hwi->poll_mode) return 1; } return 0; @@ -809,18 +803,18 @@ static int audio_is_timer_needed (void) static void audio_reset_timer (AudioState *s) { - if (audio_is_timer_needed ()) { + if (audio_is_timer_needed(s)) { timer_mod_anticipate_ns(s->ts, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + s->period_ticks); - if (!audio_timer_running) { - audio_timer_running = true; - audio_timer_last = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); + if (!s->timer_running) { + s->timer_running = true; + s->timer_last = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); trace_audio_timer_start(s->period_ticks / SCALE_MS); } } else { timer_del(s->ts); - if (audio_timer_running) { - audio_timer_running = false; + if (s->timer_running) { + s->timer_running = false; trace_audio_timer_stop(); } } @@ -832,20 +826,20 @@ static void audio_timer (void *opaque) AudioState *s = opaque; now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); - diff = now - audio_timer_last; + diff = now - s->timer_last; if (diff > s->period_ticks * 3 / 2) { trace_audio_timer_delayed(diff / SCALE_MS); } - audio_timer_last = now; + s->timer_last = now; - audio_run("timer"); + audio_run(s, "timer"); audio_reset_timer(s); } /* * Public API */ -int AUD_write (SWVoiceOut *sw, void *buf, int size) +size_t AUD_write(SWVoiceOut *sw, void *buf, size_t size) { if (!sw) { /* XXX: Consider options */ @@ -857,10 +851,10 @@ int AUD_write (SWVoiceOut *sw, void *buf, int size) return 0; } - return sw->hw->pcm_ops->write(sw, buf, size); + return audio_pcm_sw_write(sw, buf, size); } -int AUD_read (SWVoiceIn *sw, void *buf, int size) +size_t AUD_read(SWVoiceIn *sw, void *buf, size_t size) { if (!sw) { /* XXX: Consider options */ @@ -872,7 +866,7 @@ int AUD_read (SWVoiceIn *sw, void *buf, int size) return 0; } - return sw->hw->pcm_ops->read(sw, buf, size); + return audio_pcm_sw_read(sw, buf, size); } int AUD_get_buffer_size_out (SWVoiceOut *sw) @@ -890,7 +884,7 @@ void AUD_set_active_out (SWVoiceOut *sw, int on) hw = sw->hw; if (sw->active != on) { - AudioState *s = &glob_audio_state; + AudioState *s = sw->s; SWVoiceOut *temp_sw; SWVoiceCap *sc; @@ -937,7 +931,7 @@ void AUD_set_active_in (SWVoiceIn *sw, int on) hw = sw->hw; if (sw->active != on) { - AudioState *s = &glob_audio_state; + AudioState *s = sw->s; SWVoiceIn *temp_sw; if (on) { @@ -969,17 +963,17 @@ void AUD_set_active_in (SWVoiceIn *sw, int on) } } -static int audio_get_avail (SWVoiceIn *sw) +static size_t audio_get_avail (SWVoiceIn *sw) { - int live; + size_t live; if (!sw) { return 0; } live = sw->hw->total_samples_captured - sw->total_hw_samples_acquired; - if (audio_bug(__func__, live < 0 || live > sw->hw->samples)) { - dolog ("live=%d sw->hw->samples=%d\n", live, sw->hw->samples); + if (audio_bug(__func__, live > sw->hw->samples)) { + dolog("live=%zu sw->hw->samples=%zu\n", live, sw->hw->samples); return 0; } @@ -992,9 +986,9 @@ static int audio_get_avail (SWVoiceIn *sw) return (((int64_t) live << 32) / sw->ratio) << sw->info.shift; } -static int audio_get_free (SWVoiceOut *sw) +static size_t audio_get_free(SWVoiceOut *sw) { - int live, dead; + size_t live, dead; if (!sw) { return 0; @@ -1002,8 +996,8 @@ static int audio_get_free (SWVoiceOut *sw) live = sw->total_hw_samples_mixed; - if (audio_bug(__func__, live < 0 || live > sw->hw->samples)) { - dolog ("live=%d sw->hw->samples=%d\n", live, sw->hw->samples); + if (audio_bug(__func__, live > sw->hw->samples)) { + dolog("live=%zu sw->hw->samples=%zu\n", live, sw->hw->samples); return 0; } @@ -1018,9 +1012,10 @@ static int audio_get_free (SWVoiceOut *sw) return (((int64_t) dead << 32) / sw->ratio) << sw->info.shift; } -static void audio_capture_mix_and_clear (HWVoiceOut *hw, int rpos, int samples) +static void audio_capture_mix_and_clear(HWVoiceOut *hw, size_t rpos, + size_t samples) { - int n; + size_t n; if (hw->enabled) { SWVoiceCap *sc; @@ -1031,17 +1026,17 @@ static void audio_capture_mix_and_clear (HWVoiceOut *hw, int rpos, int samples) n = samples; while (n) { - int till_end_of_hw = hw->samples - rpos2; - int to_write = audio_MIN (till_end_of_hw, n); - int bytes = to_write << hw->info.shift; - int written; + size_t till_end_of_hw = hw->samples - rpos2; + size_t to_write = MIN(till_end_of_hw, n); + size_t bytes = to_write << hw->info.shift; + size_t written; sw->buf = hw->mix_buf + rpos2; written = audio_pcm_sw_write (sw, NULL, bytes); if (written - bytes) { - dolog ("Could not mix %d bytes into a capture " - "buffer, mixed %d\n", - bytes, written); + dolog("Could not mix %zu bytes into a capture " + "buffer, mixed %zu\n", + bytes, written); break; } n -= to_write; @@ -1050,9 +1045,9 @@ static void audio_capture_mix_and_clear (HWVoiceOut *hw, int rpos, int samples) } } - n = audio_MIN (samples, hw->samples - rpos); - mixeng_clear (hw->mix_buf + rpos, n); - mixeng_clear (hw->mix_buf, samples - n); + n = MIN(samples, hw->samples - rpos); + mixeng_clear(hw->mix_buf + rpos, n); + mixeng_clear(hw->mix_buf, samples - n); } static void audio_run_out (AudioState *s) @@ -1060,17 +1055,17 @@ static void audio_run_out (AudioState *s) HWVoiceOut *hw = NULL; SWVoiceOut *sw; - while ((hw = audio_pcm_hw_find_any_enabled_out (hw))) { - int played; - int live, free, nb_live, cleanup_required, prev_rpos; + while ((hw = audio_pcm_hw_find_any_enabled_out(s, hw))) { + size_t played, live, prev_rpos, free; + int nb_live, cleanup_required; live = audio_pcm_hw_get_live_out (hw, &nb_live); if (!nb_live) { live = 0; } - if (audio_bug(__func__, live < 0 || live > hw->samples)) { - dolog ("live=%d hw->samples=%d\n", live, hw->samples); + if (audio_bug(__func__, live > hw->samples)) { + dolog ("live=%zu hw->samples=%zu\n", live, hw->samples); continue; } @@ -1105,13 +1100,13 @@ static void audio_run_out (AudioState *s) played = hw->pcm_ops->run_out (hw, live); replay_audio_out(&played); if (audio_bug(__func__, hw->rpos >= hw->samples)) { - dolog ("hw->rpos=%d hw->samples=%d played=%d\n", - hw->rpos, hw->samples, played); + dolog("hw->rpos=%zu hw->samples=%zu played=%zu\n", + hw->rpos, hw->samples, played); hw->rpos = 0; } #ifdef DEBUG_OUT - dolog ("played=%d\n", played); + dolog("played=%zu\n", played); #endif if (played) { @@ -1126,8 +1121,8 @@ static void audio_run_out (AudioState *s) } if (audio_bug(__func__, played > sw->total_hw_samples_mixed)) { - dolog ("played=%d sw->total_hw_samples_mixed=%d\n", - played, sw->total_hw_samples_mixed); + dolog("played=%zu sw->total_hw_samples_mixed=%zu\n", + played, sw->total_hw_samples_mixed); played = sw->total_hw_samples_mixed; } @@ -1165,9 +1160,9 @@ static void audio_run_in (AudioState *s) { HWVoiceIn *hw = NULL; - while ((hw = audio_pcm_hw_find_any_enabled_in (hw))) { + while ((hw = audio_pcm_hw_find_any_enabled_in(s, hw))) { SWVoiceIn *sw; - int captured = 0, min; + size_t captured = 0, min; if (replay_mode != REPLAY_MODE_PLAY) { captured = hw->pcm_ops->run_in(hw); @@ -1182,7 +1177,7 @@ static void audio_run_in (AudioState *s) sw->total_hw_samples_acquired -= min; if (sw->active) { - int avail; + size_t avail; avail = audio_get_avail (sw); if (avail > 0) { @@ -1198,15 +1193,15 @@ static void audio_run_capture (AudioState *s) CaptureVoiceOut *cap; for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) { - int live, rpos, captured; + size_t live, rpos, captured; HWVoiceOut *hw = &cap->hw; SWVoiceOut *sw; captured = live = audio_pcm_hw_get_live_out (hw, NULL); rpos = hw->rpos; while (live) { - int left = hw->samples - rpos; - int to_capture = audio_MIN (live, left); + size_t left = hw->samples - rpos; + size_t to_capture = MIN(live, left); struct st_sample *src; struct capture_callback *cb; @@ -1229,8 +1224,8 @@ static void audio_run_capture (AudioState *s) } if (audio_bug(__func__, captured > sw->total_hw_samples_mixed)) { - dolog ("captured=%d sw->total_hw_samples_mixed=%d\n", - captured, sw->total_hw_samples_mixed); + dolog("captured=%zu sw->total_hw_samples_mixed=%zu\n", + captured, sw->total_hw_samples_mixed); captured = sw->total_hw_samples_mixed; } @@ -1240,13 +1235,12 @@ static void audio_run_capture (AudioState *s) } } -void audio_run (const char *msg) +void audio_run(AudioState *s, const char *msg) { - AudioState *s = &glob_audio_state; + audio_run_out(s); + audio_run_in(s); + audio_run_capture(s); - audio_run_out (s); - audio_run_in (s); - audio_run_capture (s); #ifdef DEBUG_POLL { static double prevtime; @@ -1271,8 +1265,8 @@ static int audio_driver_init(AudioState *s, struct audio_driver *drv, s->drv_opaque = drv->init(dev); if (s->drv_opaque) { - audio_init_nb_voices_out (drv); - audio_init_nb_voices_in (drv); + audio_init_nb_voices_out(s, drv); + audio_init_nb_voices_in(s, drv); s->drv = drv; return 0; } @@ -1293,11 +1287,11 @@ static void audio_vm_change_state_handler (void *opaque, int running, int op = running ? VOICE_ENABLE : VOICE_DISABLE; s->vm_running = running; - while ((hwo = audio_pcm_hw_find_any_enabled_out (hwo))) { + while ((hwo = audio_pcm_hw_find_any_enabled_out(s, hwo))) { hwo->pcm_ops->ctl_out(hwo, op); } - while ((hwi = audio_pcm_hw_find_any_enabled_in (hwi))) { + while ((hwi = audio_pcm_hw_find_any_enabled_in(s, hwi))) { hwi->pcm_ops->ctl_in(hwi, op); } audio_reset_timer (s); @@ -1310,14 +1304,12 @@ bool audio_is_cleaning_up(void) return is_cleaning_up; } -void audio_cleanup(void) +static void free_audio_state(AudioState *s) { - AudioState *s = &glob_audio_state; HWVoiceOut *hwo, *hwon; HWVoiceIn *hwi, *hwin; - is_cleaning_up = true; - QLIST_FOREACH_SAFE(hwo, &glob_audio_state.hw_head_out, entries, hwon) { + QLIST_FOREACH_SAFE(hwo, &s->hw_head_out, entries, hwon) { SWVoiceCap *sc; if (hwo->enabled) { @@ -1336,7 +1328,7 @@ void audio_cleanup(void) QLIST_REMOVE(hwo, entries); } - QLIST_FOREACH_SAFE(hwi, &glob_audio_state.hw_head_in, entries, hwin) { + QLIST_FOREACH_SAFE(hwi, &s->hw_head_in, entries, hwin) { if (hwi->enabled) { hwi->pcm_ops->ctl_in (hwi, VOICE_DISABLE); } @@ -1353,6 +1345,23 @@ void audio_cleanup(void) qapi_free_Audiodev(s->dev); s->dev = NULL; } + + if (s->ts) { + timer_free(s->ts); + s->ts = NULL; + } + + g_free(s); +} + +void audio_cleanup(void) +{ + is_cleaning_up = true; + while (!QTAILQ_EMPTY(&audio_states)) { + AudioState *s = QTAILQ_FIRST(&audio_states); + QTAILQ_REMOVE(&audio_states, s, list); + free_audio_state(s); + } } static const VMStateDescription vmstate_audio = { @@ -1379,28 +1388,34 @@ static AudiodevListEntry *audiodev_find( return NULL; } -static int audio_init(Audiodev *dev) +/* + * if we have dev, this function was called because of an -audiodev argument => + * initialize a new state with it + * if dev == NULL => legacy implicit initialization, return the already created + * state or create a new one + */ +static AudioState *audio_init(Audiodev *dev, const char *name) { + static bool atexit_registered; size_t i; int done = 0; const char *drvname = NULL; VMChangeStateEntry *e; - AudioState *s = &glob_audio_state; + AudioState *s; struct audio_driver *driver; /* silence gcc warning about uninitialized variable */ AudiodevListHead head = QSIMPLEQ_HEAD_INITIALIZER(head); - if (s->drv) { - if (dev) { - dolog("Cannot create more than one audio backend, sorry\n"); - qapi_free_Audiodev(dev); - } - return -1; - } - if (dev) { /* -audiodev option */ + legacy_config = false; drvname = AudiodevDriver_str(dev->driver); + } else if (!QTAILQ_EMPTY(&audio_states)) { + if (!legacy_config) { + dolog("You must specify an audiodev= for the device %s\n", name); + exit(1); + } + return QTAILQ_FIRST(&audio_states); } else { /* legacy implicit initialization */ head = audio_handle_legacy_opts(); @@ -1414,12 +1429,18 @@ static int audio_init(Audiodev *dev) dev = QSIMPLEQ_FIRST(&head)->dev; audio_validate_opts(dev, &error_abort); } + + s = g_malloc0(sizeof(AudioState)); s->dev = dev; QLIST_INIT (&s->hw_head_out); QLIST_INIT (&s->hw_head_in); QLIST_INIT (&s->cap_head); - atexit(audio_cleanup); + if (!atexit_registered) { + atexit(audio_cleanup); + atexit_registered = true; + } + QTAILQ_INSERT_TAIL(&audio_states, s, list); s->ts = timer_new_ns(QEMU_CLOCK_VIRTUAL, audio_timer, s); @@ -1484,7 +1505,7 @@ static int audio_init(Audiodev *dev) QLIST_INIT (&s->card_head); vmstate_register (NULL, 0, &vmstate_audio, s); - return 0; + return s; } void audio_free_audiodev_list(AudiodevListHead *head) @@ -1499,10 +1520,13 @@ void audio_free_audiodev_list(AudiodevListHead *head) void AUD_register_card (const char *name, QEMUSoundCard *card) { - audio_init(NULL); + if (!card->state) { + card->state = audio_init(NULL, name); + } + card->name = g_strdup (name); memset (&card->entries, 0, sizeof (card->entries)); - QLIST_INSERT_HEAD (&glob_audio_state.card_head, card, entries); + QLIST_INSERT_HEAD(&card->state->card_head, card, entries); } void AUD_remove_card (QEMUSoundCard *card) @@ -1512,16 +1536,24 @@ void AUD_remove_card (QEMUSoundCard *card) } -CaptureVoiceOut *AUD_add_capture ( +CaptureVoiceOut *AUD_add_capture( + AudioState *s, struct audsettings *as, struct audio_capture_ops *ops, void *cb_opaque ) { - AudioState *s = &glob_audio_state; CaptureVoiceOut *cap; struct capture_callback *cb; + if (!s) { + if (!legacy_config) { + dolog("You must specify audiodev when trying to capture\n"); + return NULL; + } + s = audio_init(NULL, NULL); + } + if (audio_validate_settings (as)) { dolog ("Invalid settings were passed when trying to add capture\n"); audio_print_settings (as); @@ -1532,7 +1564,7 @@ CaptureVoiceOut *AUD_add_capture ( cb->ops = *ops; cb->opaque = cb_opaque; - cap = audio_pcm_capture_find_specific (as); + cap = audio_pcm_capture_find_specific(s, as); if (cap) { QLIST_INSERT_HEAD (&cap->cb_head, cb, entries); return cap; @@ -1544,6 +1576,7 @@ CaptureVoiceOut *AUD_add_capture ( cap = g_malloc0(sizeof(*cap)); hw = &cap->hw; + hw->s = s; QLIST_INIT (&hw->sw_head); QLIST_INIT (&cap->cb_head); @@ -1564,7 +1597,7 @@ CaptureVoiceOut *AUD_add_capture ( QLIST_INSERT_HEAD (&s->cap_head, cap, entries); QLIST_INSERT_HEAD (&cap->cb_head, cb, entries); - QLIST_FOREACH(hw, &glob_audio_state.hw_head_out, entries) { + QLIST_FOREACH(hw, &s->hw_head_out, entries) { audio_attach_capture (hw); } return cap; @@ -1749,7 +1782,7 @@ void audio_init_audiodevs(void) AudiodevListEntry *e; QSIMPLEQ_FOREACH(e, &audiodevs, next) { - audio_init(e->dev); + audio_init(e->dev, NULL); } } @@ -1810,3 +1843,25 @@ int audio_buffer_bytes(AudiodevPerDirectionOptions *pdo, return audio_buffer_samples(pdo, as, def_usecs) * audioformat_bytes_per_sample(as->fmt); } + +AudioState *audio_state_by_name(const char *name) +{ + AudioState *s; + QTAILQ_FOREACH(s, &audio_states, list) { + assert(s->dev); + if (strcmp(name, s->dev->id) == 0) { + return s; + } + } + return NULL; +} + +const char *audio_get_id(QEMUSoundCard *card) +{ + if (card->state) { + assert(card->state->dev); + return card->state->dev->id; + } else { + return ""; + } +} |