--- /dev/null
+/* public domain */
+#include "qemu-common.h"
+#include "audio.h"
+
+#include <pulse/pulseaudio.h>
+
+#define AUDIO_CAP "pulseaudio"
+#include "audio_int.h"
+#include "audio_pt_int.h"
+
+typedef struct {
+ int samples;
+ char *server;
+ char *sink;
+ char *source;
+} PAConf;
+
+typedef struct {
+ PAConf conf;
+ pa_threaded_mainloop *mainloop;
+ pa_context *context;
+} paaudio;
+
+typedef struct {
+ HWVoiceOut hw;
+ int done;
+ int live;
+ int decr;
+ int rpos;
+ pa_stream *stream;
+ void *pcm_buf;
+ struct audio_pt pt;
+ paaudio *g;
+} PAVoiceOut;
+
+typedef struct {
+ HWVoiceIn hw;
+ int done;
+ int dead;
+ int incr;
+ int wpos;
+ pa_stream *stream;
+ void *pcm_buf;
+ struct audio_pt pt;
+ const void *read_data;
+ size_t read_index, read_length;
+ paaudio *g;
+} PAVoiceIn;
+
+static void qpa_audio_fini(void *opaque);
+
+static void GCC_FMT_ATTR (2, 3) qpa_logerr (int err, const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start (ap, fmt);
+ AUD_vlog (AUDIO_CAP, fmt, ap);
+ va_end (ap);
+
+ AUD_log (AUDIO_CAP, "Reason: %s\n", pa_strerror (err));
+}
+
+#ifndef PA_CONTEXT_IS_GOOD
+static inline int PA_CONTEXT_IS_GOOD(pa_context_state_t x)
+{
+ return
+ x == PA_CONTEXT_CONNECTING ||
+ x == PA_CONTEXT_AUTHORIZING ||
+ x == PA_CONTEXT_SETTING_NAME ||
+ x == PA_CONTEXT_READY;
+}
+#endif
+
+#ifndef PA_STREAM_IS_GOOD
+static inline int PA_STREAM_IS_GOOD(pa_stream_state_t x)
+{
+ return
+ x == PA_STREAM_CREATING ||
+ x == PA_STREAM_READY;
+}
+#endif
+
+#define CHECK_SUCCESS_GOTO(c, rerror, expression, label) \
+ do { \
+ if (!(expression)) { \
+ if (rerror) { \
+ *(rerror) = pa_context_errno ((c)->context); \
+ } \
+ goto label; \
+ } \
+ } while (0);
+
+#define CHECK_DEAD_GOTO(c, stream, rerror, label) \
+ do { \
+ if (!(c)->context || !PA_CONTEXT_IS_GOOD (pa_context_get_state((c)->context)) || \
+ !(stream) || !PA_STREAM_IS_GOOD (pa_stream_get_state ((stream)))) { \
+ if (((c)->context && pa_context_get_state ((c)->context) == PA_CONTEXT_FAILED) || \
+ ((stream) && pa_stream_get_state ((stream)) == PA_STREAM_FAILED)) { \
+ if (rerror) { \
+ *(rerror) = pa_context_errno ((c)->context); \
+ } \
+ } else { \
+ if (rerror) { \
+ *(rerror) = PA_ERR_BADSTATE; \
+ } \
+ } \
+ goto label; \
+ } \
+ } while (0);
+
+static int qpa_simple_read (PAVoiceIn *p, void *data, size_t length, int *rerror)
+{
+ paaudio *g = p->g;
+
+ pa_threaded_mainloop_lock (g->mainloop);
+
+ CHECK_DEAD_GOTO (g, p->stream, rerror, unlock_and_fail);
+
+ while (length > 0) {
+ size_t l;
+
+ while (!p->read_data) {
+ int r;
+
+ r = pa_stream_peek (p->stream, &p->read_data, &p->read_length);
+ CHECK_SUCCESS_GOTO (g, rerror, r == 0, unlock_and_fail);
+
+ if (!p->read_data) {
+ pa_threaded_mainloop_wait (g->mainloop);
+ CHECK_DEAD_GOTO (g, p->stream, rerror, unlock_and_fail);
+ } else {
+ p->read_index = 0;
+ }
+ }
+
+ l = p->read_length < length ? p->read_length : length;
+ memcpy (data, (const uint8_t *) p->read_data+p->read_index, l);
+
+ data = (uint8_t *) data + l;
+ length -= l;
+
+ p->read_index += l;
+ p->read_length -= l;
+
+ if (!p->read_length) {
+ int r;
+
+ r = pa_stream_drop (p->stream);
+ p->read_data = NULL;
+ p->read_length = 0;
+ p->read_index = 0;
+
+ CHECK_SUCCESS_GOTO (g, rerror, r == 0, unlock_and_fail);
+ }
+ }
+
+ pa_threaded_mainloop_unlock (g->mainloop);
+ return 0;
+
+unlock_and_fail:
+ pa_threaded_mainloop_unlock (g->mainloop);
+ return -1;
+}
+
+static int qpa_simple_write (PAVoiceOut *p, const void *data, size_t length, int *rerror)
+{
+ paaudio *g = p->g;
+
+ pa_threaded_mainloop_lock (g->mainloop);
+
+ CHECK_DEAD_GOTO (g, p->stream, rerror, unlock_and_fail);
+
+ while (length > 0) {
+ size_t l;
+ int r;
+
+ while (!(l = pa_stream_writable_size (p->stream))) {
+ pa_threaded_mainloop_wait (g->mainloop);
+ CHECK_DEAD_GOTO (g, p->stream, rerror, unlock_and_fail);
+ }
+
+ CHECK_SUCCESS_GOTO (g, rerror, l != (size_t) -1, unlock_and_fail);
+
+ if (l > length) {
+ l = length;
+ }
+
+ r = pa_stream_write (p->stream, data, l, NULL, 0LL, PA_SEEK_RELATIVE);
+ CHECK_SUCCESS_GOTO (g, rerror, r >= 0, unlock_and_fail);
+
+ data = (const uint8_t *) data + l;
+ length -= l;
+ }
+
+ pa_threaded_mainloop_unlock (g->mainloop);
+ return 0;
+
+unlock_and_fail:
+ pa_threaded_mainloop_unlock (g->mainloop);
+ return -1;
+}
+
+static void *qpa_thread_out (void *arg)
+{
+ PAVoiceOut *pa = arg;
+ HWVoiceOut *hw = &pa->hw;
+
+ if (audio_pt_lock (&pa->pt, AUDIO_FUNC)) {
+ return NULL;
+ }
+
+ for (;;) {
+ int decr, to_mix, rpos;
+
+ for (;;) {
+ if (pa->done) {
+ goto exit;
+ }
+
+ if (pa->live > 0) {
+ break;
+ }
+
+ if (audio_pt_wait (&pa->pt, AUDIO_FUNC)) {
+ goto exit;
+ }
+ }
+
+ decr = to_mix = audio_MIN (pa->live, pa->g->conf.samples >> 2);
+ rpos = pa->rpos;
+
+ if (audio_pt_unlock (&pa->pt, AUDIO_FUNC)) {
+ return NULL;
+ }
+
+ while (to_mix) {
+ int error;
+ int chunk = audio_MIN (to_mix, hw->samples - rpos);
+ struct st_sample *src = hw->mix_buf + rpos;
+
+ hw->clip (pa->pcm_buf, src, chunk);
+
+ if (qpa_simple_write (pa, pa->pcm_buf,
+ chunk << hw->info.shift, &error) < 0) {
+ qpa_logerr (error, "pa_simple_write failed\n");
+ return NULL;
+ }
+
+ rpos = (rpos + chunk) % hw->samples;
+ to_mix -= chunk;
+ }
+
+ if (audio_pt_lock (&pa->pt, AUDIO_FUNC)) {
+ return NULL;
+ }
+
+ pa->rpos = rpos;
+ pa->live -= decr;
+ pa->decr += decr;
+ }
+
+ exit:
+ audio_pt_unlock (&pa->pt, AUDIO_FUNC);
+ return NULL;
+}
+
+static int qpa_run_out (HWVoiceOut *hw, int live)
+{
+ int decr;
+ PAVoiceOut *pa = (PAVoiceOut *) hw;
+
+ if (audio_pt_lock (&pa->pt, AUDIO_FUNC)) {
+ return 0;
+ }
+
+ decr = audio_MIN (live, pa->decr);
+ pa->decr -= decr;
+ pa->live = live - decr;
+ hw->rpos = pa->rpos;
+ if (pa->live > 0) {
+ audio_pt_unlock_and_signal (&pa->pt, AUDIO_FUNC);
+ }
+ else {
+ audio_pt_unlock (&pa->pt, AUDIO_FUNC);
+ }
+ return decr;
+}
+
+static int qpa_write (SWVoiceOut *sw, void *buf, int len)
+{
+ return audio_pcm_sw_write (sw, buf, len);
+}
+
+/* capture */
+static void *qpa_thread_in (void *arg)
+{
+ PAVoiceIn *pa = arg;
+ HWVoiceIn *hw = &pa->hw;
+
+ if (audio_pt_lock (&pa->pt, AUDIO_FUNC)) {
+ return NULL;
+ }
+
+ for (;;) {
+ int incr, to_grab, wpos;
+
+ for (;;) {
+ if (pa->done) {
+ goto exit;
+ }
+
+ if (pa->dead > 0) {
+ break;
+ }
+
+ if (audio_pt_wait (&pa->pt, AUDIO_FUNC)) {
+ goto exit;
+ }
+ }
+
+ incr = to_grab = audio_MIN (pa->dead, pa->g->conf.samples >> 2);
+ wpos = pa->wpos;
+
+ if (audio_pt_unlock (&pa->pt, AUDIO_FUNC)) {
+ return NULL;
+ }
+
+ while (to_grab) {
+ int error;
+ int chunk = audio_MIN (to_grab, hw->samples - wpos);
+ void *buf = advance (pa->pcm_buf, wpos);
+
+ if (qpa_simple_read (pa, buf,
+ chunk << hw->info.shift, &error) < 0) {
+ qpa_logerr (error, "pa_simple_read failed\n");
+ return NULL;
+ }
+
+ hw->conv (hw->conv_buf + wpos, buf, chunk);
+ wpos = (wpos + chunk) % hw->samples;
+ to_grab -= chunk;
+ }
+
+ if (audio_pt_lock (&pa->pt, AUDIO_FUNC)) {
+ return NULL;
+ }
+
+ pa->wpos = wpos;
+ pa->dead -= incr;
+ pa->incr += incr;
+ }
+
+ exit:
+ audio_pt_unlock (&pa->pt, AUDIO_FUNC);
+ return NULL;
+}
+
+static int qpa_run_in (HWVoiceIn *hw)
+{
+ int live, incr, dead;
+ PAVoiceIn *pa = (PAVoiceIn *) hw;
+
+ if (audio_pt_lock (&pa->pt, AUDIO_FUNC)) {
+ return 0;
+ }
+
+ live = audio_pcm_hw_get_live_in (hw);
+ dead = hw->samples - live;
+ incr = audio_MIN (dead, pa->incr);
+ pa->incr -= incr;
+ pa->dead = dead - incr;
+ hw->wpos = pa->wpos;
+ if (pa->dead > 0) {
+ audio_pt_unlock_and_signal (&pa->pt, AUDIO_FUNC);
+ }
+ else {
+ audio_pt_unlock (&pa->pt, AUDIO_FUNC);
+ }
+ return incr;
+}
+
+static int qpa_read (SWVoiceIn *sw, void *buf, int len)
+{
+ return audio_pcm_sw_read (sw, buf, len);
+}
+
+static pa_sample_format_t audfmt_to_pa (audfmt_e afmt, int endianness)
+{
+ int format;
+
+ switch (afmt) {
+ case AUD_FMT_S8:
+ case AUD_FMT_U8:
+ format = PA_SAMPLE_U8;
+ break;
+ case AUD_FMT_S16:
+ case AUD_FMT_U16:
+ format = endianness ? PA_SAMPLE_S16BE : PA_SAMPLE_S16LE;
+ break;
+ case AUD_FMT_S32:
+ case AUD_FMT_U32:
+ format = endianness ? PA_SAMPLE_S32BE : PA_SAMPLE_S32LE;
+ break;
+ default:
+ dolog ("Internal logic error: Bad audio format %d\n", afmt);
+ format = PA_SAMPLE_U8;
+ break;
+ }
+ return format;
+}
+
+static audfmt_e pa_to_audfmt (pa_sample_format_t fmt, int *endianness)
+{
+ switch (fmt) {
+ case PA_SAMPLE_U8:
+ return AUD_FMT_U8;
+ case PA_SAMPLE_S16BE:
+ *endianness = 1;
+ return AUD_FMT_S16;
+ case PA_SAMPLE_S16LE:
+ *endianness = 0;
+ return AUD_FMT_S16;
+ case PA_SAMPLE_S32BE:
+ *endianness = 1;
+ return AUD_FMT_S32;
+ case PA_SAMPLE_S32LE:
+ *endianness = 0;
+ return AUD_FMT_S32;
+ default:
+ dolog ("Internal logic error: Bad pa_sample_format %d\n", fmt);
+ return AUD_FMT_U8;
+ }
+}
+
+static void context_state_cb (pa_context *c, void *userdata)
+{
+ paaudio *g = userdata;
+
+ switch (pa_context_get_state(c)) {
+ case PA_CONTEXT_READY:
+ case PA_CONTEXT_TERMINATED:
+ case PA_CONTEXT_FAILED:
+ pa_threaded_mainloop_signal (g->mainloop, 0);
+ break;
+
+ case PA_CONTEXT_UNCONNECTED:
+ case PA_CONTEXT_CONNECTING:
+ case PA_CONTEXT_AUTHORIZING:
+ case PA_CONTEXT_SETTING_NAME:
+ break;
+ }
+}
+
+static void stream_state_cb (pa_stream *s, void * userdata)
+{
+ paaudio *g = userdata;
+
+ switch (pa_stream_get_state (s)) {
+
+ case PA_STREAM_READY:
+ case PA_STREAM_FAILED:
+ case PA_STREAM_TERMINATED:
+ pa_threaded_mainloop_signal (g->mainloop, 0);
+ break;
+
+ case PA_STREAM_UNCONNECTED:
+ case PA_STREAM_CREATING:
+ break;
+ }
+}
+
+static void stream_request_cb (pa_stream *s, size_t length, void *userdata)
+{
+ paaudio *g = userdata;
+
+ pa_threaded_mainloop_signal (g->mainloop, 0);
+}
+
+static pa_stream *qpa_simple_new (
+ paaudio *g,
+ const char *name,
+ pa_stream_direction_t dir,
+ const char *dev,
+ const pa_sample_spec *ss,
+ const pa_channel_map *map,
+ const pa_buffer_attr *attr,
+ int *rerror)
+{
+ int r;
+ pa_stream *stream;
+
+ pa_threaded_mainloop_lock (g->mainloop);
+
+ stream = pa_stream_new (g->context, name, ss, map);
+ if (!stream) {
+ goto fail;
+ }
+
+ pa_stream_set_state_callback (stream, stream_state_cb, g);
+ pa_stream_set_read_callback (stream, stream_request_cb, g);
+ pa_stream_set_write_callback (stream, stream_request_cb, g);
+
+ if (dir == PA_STREAM_PLAYBACK) {
+ r = pa_stream_connect_playback (stream, dev, attr,
+ PA_STREAM_INTERPOLATE_TIMING
+#ifdef PA_STREAM_ADJUST_LATENCY
+ |PA_STREAM_ADJUST_LATENCY
+#endif
+ |PA_STREAM_AUTO_TIMING_UPDATE, NULL, NULL);
+ } else {
+ r = pa_stream_connect_record (stream, dev, attr,
+ PA_STREAM_INTERPOLATE_TIMING
+#ifdef PA_STREAM_ADJUST_LATENCY
+ |PA_STREAM_ADJUST_LATENCY
+#endif
+ |PA_STREAM_AUTO_TIMING_UPDATE);
+ }
+
+ if (r < 0) {
+ goto fail;
+ }
+
+ pa_threaded_mainloop_unlock (g->mainloop);
+
+ return stream;
+
+fail:
+ pa_threaded_mainloop_unlock (g->mainloop);
+
+ if (stream) {
+ pa_stream_unref (stream);
+ }
+
+ *rerror = pa_context_errno (g->context);
+
+ return NULL;
+}
+
+static int qpa_init_out(HWVoiceOut *hw, struct audsettings *as,
+ void *drv_opaque)
+{
+ int error;
+ pa_sample_spec ss;
+ pa_buffer_attr ba;
+ struct audsettings obt_as = *as;
+ PAVoiceOut *pa = (PAVoiceOut *) hw;
+ paaudio *g = pa->g = drv_opaque;
+
+ ss.format = audfmt_to_pa (as->fmt, as->endianness);
+ ss.channels = as->nchannels;
+ ss.rate = as->freq;
+
+ /*
+ * qemu audio tick runs at 100 Hz (by default), so processing
+ * data chunks worth 10 ms of sound should be a good fit.
+ */
+ ba.tlength = pa_usec_to_bytes (10 * 1000, &ss);
+ ba.minreq = pa_usec_to_bytes (5 * 1000, &ss);
+ ba.maxlength = -1;
+ ba.prebuf = -1;
+
+ obt_as.fmt = pa_to_audfmt (ss.format, &obt_as.endianness);
+
+ pa->stream = qpa_simple_new (
+ g,
+ "qemu",
+ PA_STREAM_PLAYBACK,
+ g->conf.sink,
+ &ss,
+ NULL, /* channel map */
+ &ba, /* buffering attributes */
+ &error
+ );
+ if (!pa->stream) {
+ qpa_logerr (error, "pa_simple_new for playback failed\n");
+ goto fail1;
+ }
+
+ audio_pcm_init_info (&hw->info, &obt_as);
+ hw->samples = g->conf.samples;
+ pa->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
+ pa->rpos = hw->rpos;
+ if (!pa->pcm_buf) {
+ dolog ("Could not allocate buffer (%d bytes)\n",
+ hw->samples << hw->info.shift);
+ goto fail2;
+ }
+
+ if (audio_pt_init (&pa->pt, qpa_thread_out, hw, AUDIO_CAP, AUDIO_FUNC)) {
+ goto fail3;
+ }
+
+ return 0;
+
+ fail3:
+ g_free (pa->pcm_buf);
+ pa->pcm_buf = NULL;
+ fail2:
+ if (pa->stream) {
+ pa_stream_unref (pa->stream);
+ pa->stream = NULL;
+ }
+ fail1:
+ return -1;
+}
+
+static int qpa_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
+{
+ int error;
+ pa_sample_spec ss;
+ struct audsettings obt_as = *as;
+ PAVoiceIn *pa = (PAVoiceIn *) hw;
+ paaudio *g = pa->g = drv_opaque;
+
+ ss.format = audfmt_to_pa (as->fmt, as->endianness);
+ ss.channels = as->nchannels;
+ ss.rate = as->freq;
+
+ obt_as.fmt = pa_to_audfmt (ss.format, &obt_as.endianness);
+
+ pa->stream = qpa_simple_new (
+ g,
+ "qemu",
+ PA_STREAM_RECORD,
+ g->conf.source,
+ &ss,
+ NULL, /* channel map */
+ NULL, /* buffering attributes */
+ &error
+ );
+ if (!pa->stream) {
+ qpa_logerr (error, "pa_simple_new for capture failed\n");
+ goto fail1;
+ }
+
+ audio_pcm_init_info (&hw->info, &obt_as);
+ hw->samples = g->conf.samples;
+ pa->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
+ pa->wpos = hw->wpos;
+ if (!pa->pcm_buf) {
+ dolog ("Could not allocate buffer (%d bytes)\n",
+ hw->samples << hw->info.shift);
+ goto fail2;
+ }
+
+ if (audio_pt_init (&pa->pt, qpa_thread_in, hw, AUDIO_CAP, AUDIO_FUNC)) {
+ goto fail3;
+ }
+
+ return 0;
+
+ fail3:
+ g_free (pa->pcm_buf);
+ pa->pcm_buf = NULL;
+ fail2:
+ if (pa->stream) {
+ pa_stream_unref (pa->stream);
+ pa->stream = NULL;
+ }
+ fail1:
+ return -1;
+}
+
+static void qpa_fini_out (HWVoiceOut *hw)
+{
+ void *ret;
+ PAVoiceOut *pa = (PAVoiceOut *) hw;
+
+ audio_pt_lock (&pa->pt, AUDIO_FUNC);
+ pa->done = 1;
+ audio_pt_unlock_and_signal (&pa->pt, AUDIO_FUNC);
+ audio_pt_join (&pa->pt, &ret, AUDIO_FUNC);
+
+ if (pa->stream) {
+ pa_stream_unref (pa->stream);
+ pa->stream = NULL;
+ }
+
+ audio_pt_fini (&pa->pt, AUDIO_FUNC);
+ g_free (pa->pcm_buf);
+ pa->pcm_buf = NULL;
+}
+
+static void qpa_fini_in (HWVoiceIn *hw)
+{
+ void *ret;
+ PAVoiceIn *pa = (PAVoiceIn *) hw;
+
+ audio_pt_lock (&pa->pt, AUDIO_FUNC);
+ pa->done = 1;
+ audio_pt_unlock_and_signal (&pa->pt, AUDIO_FUNC);
+ audio_pt_join (&pa->pt, &ret, AUDIO_FUNC);
+
+ if (pa->stream) {
+ pa_stream_unref (pa->stream);
+ pa->stream = NULL;
+ }
+
+ audio_pt_fini (&pa->pt, AUDIO_FUNC);
+ g_free (pa->pcm_buf);
+ pa->pcm_buf = NULL;
+}
+
+static int qpa_ctl_out (HWVoiceOut *hw, int cmd, ...)
+{
+ PAVoiceOut *pa = (PAVoiceOut *) hw;
+ pa_operation *op;
+ pa_cvolume v;
+ paaudio *g = pa->g;
+
+#ifdef PA_CHECK_VERSION /* macro is present in 0.9.16+ */
+ pa_cvolume_init (&v); /* function is present in 0.9.13+ */
+#endif
+
+ switch (cmd) {
+ case VOICE_VOLUME:
+ {
+ SWVoiceOut *sw;
+ va_list ap;
+
+ va_start (ap, cmd);
+ sw = va_arg (ap, SWVoiceOut *);
+ va_end (ap);
+
+ v.channels = 2;
+ v.values[0] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.l) / UINT32_MAX;
+ v.values[1] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.r) / UINT32_MAX;
+
+ pa_threaded_mainloop_lock (g->mainloop);
+
+ op = pa_context_set_sink_input_volume (g->context,
+ pa_stream_get_index (pa->stream),
+ &v, NULL, NULL);
+ if (!op)
+ qpa_logerr (pa_context_errno (g->context),
+ "set_sink_input_volume() failed\n");
+ else
+ pa_operation_unref (op);
+
+ op = pa_context_set_sink_input_mute (g->context,
+ pa_stream_get_index (pa->stream),
+ sw->vol.mute, NULL, NULL);
+ if (!op) {
+ qpa_logerr (pa_context_errno (g->context),
+ "set_sink_input_mute() failed\n");
+ } else {
+ pa_operation_unref (op);
+ }
+
+ pa_threaded_mainloop_unlock (g->mainloop);
+ }
+ }
+ return 0;
+}
+
+static int qpa_ctl_in (HWVoiceIn *hw, int cmd, ...)
+{
+ PAVoiceIn *pa = (PAVoiceIn *) hw;
+ pa_operation *op;
+ pa_cvolume v;
+ paaudio *g = pa->g;
+
+#ifdef PA_CHECK_VERSION
+ pa_cvolume_init (&v);
+#endif
+
+ switch (cmd) {
+ case VOICE_VOLUME:
+ {
+ SWVoiceIn *sw;
+ va_list ap;
+
+ va_start (ap, cmd);
+ sw = va_arg (ap, SWVoiceIn *);
+ va_end (ap);
+
+ v.channels = 2;
+ v.values[0] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.l) / UINT32_MAX;
+ v.values[1] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.r) / UINT32_MAX;
+
+ pa_threaded_mainloop_lock (g->mainloop);
+
+ /* FIXME: use the upcoming "set_source_output_{volume,mute}" */
+ op = pa_context_set_source_volume_by_index (g->context,
+ pa_stream_get_device_index (pa->stream),
+ &v, NULL, NULL);
+ if (!op) {
+ qpa_logerr (pa_context_errno (g->context),
+ "set_source_volume() failed\n");
+ } else {
+ pa_operation_unref(op);
+ }
+
+ op = pa_context_set_source_mute_by_index (g->context,
+ pa_stream_get_index (pa->stream),
+ sw->vol.mute, NULL, NULL);
+ if (!op) {
+ qpa_logerr (pa_context_errno (g->context),
+ "set_source_mute() failed\n");
+ } else {
+ pa_operation_unref (op);
+ }
+
+ pa_threaded_mainloop_unlock (g->mainloop);
+ }
+ }
+ return 0;
+}
+
+/* common */
+static PAConf glob_conf = {
+ .samples = 4096,
+};
+
+static void *qpa_audio_init (void)
+{
+ paaudio *g = g_malloc(sizeof(paaudio));
+ g->conf = glob_conf;
+ g->mainloop = NULL;
+ g->context = NULL;
+
+ g->mainloop = pa_threaded_mainloop_new ();
+ if (!g->mainloop) {
+ goto fail;
+ }
+
+ g->context = pa_context_new (pa_threaded_mainloop_get_api (g->mainloop),
+ g->conf.server);
+ if (!g->context) {
+ goto fail;
+ }
+
+ pa_context_set_state_callback (g->context, context_state_cb, g);
+
+ if (pa_context_connect (g->context, g->conf.server, 0, NULL) < 0) {
+ qpa_logerr (pa_context_errno (g->context),
+ "pa_context_connect() failed\n");
+ goto fail;
+ }
+
+ pa_threaded_mainloop_lock (g->mainloop);
+
+ if (pa_threaded_mainloop_start (g->mainloop) < 0) {
+ goto unlock_and_fail;
+ }
+
+ for (;;) {
+ pa_context_state_t state;
+
+ state = pa_context_get_state (g->context);
+
+ if (state == PA_CONTEXT_READY) {
+ break;
+ }
+
+ if (!PA_CONTEXT_IS_GOOD (state)) {
+ qpa_logerr (pa_context_errno (g->context),
+ "Wrong context state\n");
+ goto unlock_and_fail;
+ }
+
+ /* Wait until the context is ready */
+ pa_threaded_mainloop_wait (g->mainloop);
+ }
+
+ pa_threaded_mainloop_unlock (g->mainloop);
+
+ return g;
+
+unlock_and_fail:
+ pa_threaded_mainloop_unlock (g->mainloop);
+fail:
+ AUD_log (AUDIO_CAP, "Failed to initialize PA context");
+ qpa_audio_fini(g);
+ return NULL;
+}
+
+static void qpa_audio_fini (void *opaque)
+{
+ paaudio *g = opaque;
+
+ if (g->mainloop) {
+ pa_threaded_mainloop_stop (g->mainloop);
+ }
+
+ if (g->context) {
+ pa_context_disconnect (g->context);
+ pa_context_unref (g->context);
+ }
+
+ if (g->mainloop) {
+ pa_threaded_mainloop_free (g->mainloop);
+ }
+
+ g_free(g);
+}
+
+struct audio_option qpa_options[] = {
+ {
+ .name = "SAMPLES",
+ .tag = AUD_OPT_INT,
+ .valp = &glob_conf.samples,
+ .descr = "buffer size in samples"
+ },
+ {
+ .name = "SERVER",
+ .tag = AUD_OPT_STR,
+ .valp = &glob_conf.server,
+ .descr = "server address"
+ },
+ {
+ .name = "SINK",
+ .tag = AUD_OPT_STR,
+ .valp = &glob_conf.sink,
+ .descr = "sink device name"
+ },
+ {
+ .name = "SOURCE",
+ .tag = AUD_OPT_STR,
+ .valp = &glob_conf.source,
+ .descr = "source device name"
+ },
+ { /* End of list */ }
+};
+
+static struct audio_pcm_ops qpa_pcm_ops = {
+ .init_out = qpa_init_out,
+ .fini_out = qpa_fini_out,
+ .run_out = qpa_run_out,
+ .write = qpa_write,
+ .ctl_out = qpa_ctl_out,
+
+ .init_in = qpa_init_in,
+ .fini_in = qpa_fini_in,
+ .run_in = qpa_run_in,
+ .read = qpa_read,
+ .ctl_in = qpa_ctl_in
+};
+
+struct audio_driver pa_audio_driver = {
+ .name = "pa",
+ .descr = "http://www.pulseaudio.org/",
+ .options = qpa_options,
+ .init = qpa_audio_init,
+ .fini = qpa_audio_fini,
+ .pcm_ops = &qpa_pcm_ops,
+ .can_be_default = 1,
+ .max_voices_out = INT_MAX,
+ .max_voices_in = INT_MAX,
+ .voice_size_out = sizeof (PAVoiceOut),
+ .voice_size_in = sizeof (PAVoiceIn),
+ .ctl_caps = VOICE_VOLUME_CAP
+};
Code Review / kvmfornfv.git / blobdiff