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| 1 |
/* public domain */
|
|---|---|
| 2 |
#include "qemu-common.h" |
| 3 |
#include "audio.h" |
| 4 |
|
| 5 |
#include <pulse/pulseaudio.h> |
| 6 |
|
| 7 |
#define AUDIO_CAP "pulseaudio" |
| 8 |
#include "audio_int.h" |
| 9 |
#include "audio_pt_int.h" |
| 10 |
|
| 11 |
typedef struct { |
| 12 |
HWVoiceOut hw; |
| 13 |
int done;
|
| 14 |
int live;
|
| 15 |
int decr;
|
| 16 |
int rpos;
|
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pa_stream *stream; |
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void *pcm_buf;
|
| 19 |
struct audio_pt pt;
|
| 20 |
} PAVoiceOut; |
| 21 |
|
| 22 |
typedef struct { |
| 23 |
HWVoiceIn hw; |
| 24 |
int done;
|
| 25 |
int dead;
|
| 26 |
int incr;
|
| 27 |
int wpos;
|
| 28 |
pa_stream *stream; |
| 29 |
void *pcm_buf;
|
| 30 |
struct audio_pt pt;
|
| 31 |
const void *read_data; |
| 32 |
size_t read_index, read_length; |
| 33 |
} PAVoiceIn; |
| 34 |
|
| 35 |
typedef struct { |
| 36 |
int samples;
|
| 37 |
char *server;
|
| 38 |
char *sink;
|
| 39 |
char *source;
|
| 40 |
pa_threaded_mainloop *mainloop; |
| 41 |
pa_context *context; |
| 42 |
} paaudio; |
| 43 |
|
| 44 |
static paaudio glob_paaudio = {
|
| 45 |
.samples = 4096,
|
| 46 |
}; |
| 47 |
|
| 48 |
static void GCC_FMT_ATTR (2, 3) qpa_logerr (int err, const char *fmt, ...) |
| 49 |
{
|
| 50 |
va_list ap; |
| 51 |
|
| 52 |
va_start (ap, fmt); |
| 53 |
AUD_vlog (AUDIO_CAP, fmt, ap); |
| 54 |
va_end (ap); |
| 55 |
|
| 56 |
AUD_log (AUDIO_CAP, "Reason: %s\n", pa_strerror (err));
|
| 57 |
} |
| 58 |
|
| 59 |
#ifndef PA_CONTEXT_IS_GOOD
|
| 60 |
static inline int PA_CONTEXT_IS_GOOD(pa_context_state_t x) |
| 61 |
{
|
| 62 |
return
|
| 63 |
x == PA_CONTEXT_CONNECTING || |
| 64 |
x == PA_CONTEXT_AUTHORIZING || |
| 65 |
x == PA_CONTEXT_SETTING_NAME || |
| 66 |
x == PA_CONTEXT_READY; |
| 67 |
} |
| 68 |
#endif
|
| 69 |
|
| 70 |
#ifndef PA_STREAM_IS_GOOD
|
| 71 |
static inline int PA_STREAM_IS_GOOD(pa_stream_state_t x) |
| 72 |
{
|
| 73 |
return
|
| 74 |
x == PA_STREAM_CREATING || |
| 75 |
x == PA_STREAM_READY; |
| 76 |
} |
| 77 |
#endif
|
| 78 |
|
| 79 |
#define CHECK_SUCCESS_GOTO(c, rerror, expression, label) \
|
| 80 |
do { \
|
| 81 |
if (!(expression)) { \
|
| 82 |
if (rerror) { \
|
| 83 |
*(rerror) = pa_context_errno ((c)->context); \ |
| 84 |
} \ |
| 85 |
goto label; \
|
| 86 |
} \ |
| 87 |
} while (0); |
| 88 |
|
| 89 |
#define CHECK_DEAD_GOTO(c, stream, rerror, label) \
|
| 90 |
do { \
|
| 91 |
if (!(c)->context || !PA_CONTEXT_IS_GOOD (pa_context_get_state((c)->context)) || \
|
| 92 |
!(stream) || !PA_STREAM_IS_GOOD (pa_stream_get_state ((stream)))) { \
|
| 93 |
if (((c)->context && pa_context_get_state ((c)->context) == PA_CONTEXT_FAILED) || \
|
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((stream) && pa_stream_get_state ((stream)) == PA_STREAM_FAILED)) { \
|
| 95 |
if (rerror) { \
|
| 96 |
*(rerror) = pa_context_errno ((c)->context); \ |
| 97 |
} \ |
| 98 |
} else { \
|
| 99 |
if (rerror) { \
|
| 100 |
*(rerror) = PA_ERR_BADSTATE; \ |
| 101 |
} \ |
| 102 |
} \ |
| 103 |
goto label; \
|
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} \ |
| 105 |
} while (0); |
| 106 |
|
| 107 |
static int qpa_simple_read (PAVoiceIn *p, void *data, size_t length, int *rerror) |
| 108 |
{
|
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paaudio *g = &glob_paaudio; |
| 110 |
|
| 111 |
pa_threaded_mainloop_lock (g->mainloop); |
| 112 |
|
| 113 |
CHECK_DEAD_GOTO (g, p->stream, rerror, unlock_and_fail); |
| 114 |
|
| 115 |
while (length > 0) { |
| 116 |
size_t l; |
| 117 |
|
| 118 |
while (!p->read_data) {
|
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int r;
|
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|
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r = pa_stream_peek (p->stream, &p->read_data, &p->read_length); |
| 122 |
CHECK_SUCCESS_GOTO (g, rerror, r == 0, unlock_and_fail);
|
| 123 |
|
| 124 |
if (!p->read_data) {
|
| 125 |
pa_threaded_mainloop_wait (g->mainloop); |
| 126 |
CHECK_DEAD_GOTO (g, p->stream, rerror, unlock_and_fail); |
| 127 |
} else {
|
| 128 |
p->read_index = 0;
|
| 129 |
} |
| 130 |
} |
| 131 |
|
| 132 |
l = p->read_length < length ? p->read_length : length; |
| 133 |
memcpy (data, (const uint8_t *) p->read_data+p->read_index, l);
|
| 134 |
|
| 135 |
data = (uint8_t *) data + l; |
| 136 |
length -= l; |
| 137 |
|
| 138 |
p->read_index += l; |
| 139 |
p->read_length -= l; |
| 140 |
|
| 141 |
if (!p->read_length) {
|
| 142 |
int r;
|
| 143 |
|
| 144 |
r = pa_stream_drop (p->stream); |
| 145 |
p->read_data = NULL;
|
| 146 |
p->read_length = 0;
|
| 147 |
p->read_index = 0;
|
| 148 |
|
| 149 |
CHECK_SUCCESS_GOTO (g, rerror, r == 0, unlock_and_fail);
|
| 150 |
} |
| 151 |
} |
| 152 |
|
| 153 |
pa_threaded_mainloop_unlock (g->mainloop); |
| 154 |
return 0; |
| 155 |
|
| 156 |
unlock_and_fail:
|
| 157 |
pa_threaded_mainloop_unlock (g->mainloop); |
| 158 |
return -1; |
| 159 |
} |
| 160 |
|
| 161 |
static int qpa_simple_write (PAVoiceOut *p, const void *data, size_t length, int *rerror) |
| 162 |
{
|
| 163 |
paaudio *g = &glob_paaudio; |
| 164 |
|
| 165 |
pa_threaded_mainloop_lock (g->mainloop); |
| 166 |
|
| 167 |
CHECK_DEAD_GOTO (g, p->stream, rerror, unlock_and_fail); |
| 168 |
|
| 169 |
while (length > 0) { |
| 170 |
size_t l; |
| 171 |
int r;
|
| 172 |
|
| 173 |
while (!(l = pa_stream_writable_size (p->stream))) {
|
| 174 |
pa_threaded_mainloop_wait (g->mainloop); |
| 175 |
CHECK_DEAD_GOTO (g, p->stream, rerror, unlock_and_fail); |
| 176 |
} |
| 177 |
|
| 178 |
CHECK_SUCCESS_GOTO (g, rerror, l != (size_t) -1, unlock_and_fail);
|
| 179 |
|
| 180 |
if (l > length) {
|
| 181 |
l = length; |
| 182 |
} |
| 183 |
|
| 184 |
r = pa_stream_write (p->stream, data, l, NULL, 0LL, PA_SEEK_RELATIVE); |
| 185 |
CHECK_SUCCESS_GOTO (g, rerror, r >= 0, unlock_and_fail);
|
| 186 |
|
| 187 |
data = (const uint8_t *) data + l;
|
| 188 |
length -= l; |
| 189 |
} |
| 190 |
|
| 191 |
pa_threaded_mainloop_unlock (g->mainloop); |
| 192 |
return 0; |
| 193 |
|
| 194 |
unlock_and_fail:
|
| 195 |
pa_threaded_mainloop_unlock (g->mainloop); |
| 196 |
return -1; |
| 197 |
} |
| 198 |
|
| 199 |
static void *qpa_thread_out (void *arg) |
| 200 |
{
|
| 201 |
PAVoiceOut *pa = arg; |
| 202 |
HWVoiceOut *hw = &pa->hw; |
| 203 |
|
| 204 |
if (audio_pt_lock (&pa->pt, AUDIO_FUNC)) {
|
| 205 |
return NULL; |
| 206 |
} |
| 207 |
|
| 208 |
for (;;) {
|
| 209 |
int decr, to_mix, rpos;
|
| 210 |
|
| 211 |
for (;;) {
|
| 212 |
if (pa->done) {
|
| 213 |
goto exit;
|
| 214 |
} |
| 215 |
|
| 216 |
if (pa->live > 0) { |
| 217 |
break;
|
| 218 |
} |
| 219 |
|
| 220 |
if (audio_pt_wait (&pa->pt, AUDIO_FUNC)) {
|
| 221 |
goto exit;
|
| 222 |
} |
| 223 |
} |
| 224 |
|
| 225 |
decr = to_mix = audio_MIN (pa->live, glob_paaudio.samples >> 2);
|
| 226 |
rpos = pa->rpos; |
| 227 |
|
| 228 |
if (audio_pt_unlock (&pa->pt, AUDIO_FUNC)) {
|
| 229 |
return NULL; |
| 230 |
} |
| 231 |
|
| 232 |
while (to_mix) {
|
| 233 |
int error;
|
| 234 |
int chunk = audio_MIN (to_mix, hw->samples - rpos);
|
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struct st_sample *src = hw->mix_buf + rpos;
|
| 236 |
|
| 237 |
hw->clip (pa->pcm_buf, src, chunk); |
| 238 |
|
| 239 |
if (qpa_simple_write (pa, pa->pcm_buf,
|
| 240 |
chunk << hw->info.shift, &error) < 0) {
|
| 241 |
qpa_logerr (error, "pa_simple_write failed\n");
|
| 242 |
return NULL; |
| 243 |
} |
| 244 |
|
| 245 |
rpos = (rpos + chunk) % hw->samples; |
| 246 |
to_mix -= chunk; |
| 247 |
} |
| 248 |
|
| 249 |
if (audio_pt_lock (&pa->pt, AUDIO_FUNC)) {
|
| 250 |
return NULL; |
| 251 |
} |
| 252 |
|
| 253 |
pa->rpos = rpos; |
| 254 |
pa->live -= decr; |
| 255 |
pa->decr += decr; |
| 256 |
} |
| 257 |
|
| 258 |
exit:
|
| 259 |
audio_pt_unlock (&pa->pt, AUDIO_FUNC); |
| 260 |
return NULL; |
| 261 |
} |
| 262 |
|
| 263 |
static int qpa_run_out (HWVoiceOut *hw, int live) |
| 264 |
{
|
| 265 |
int decr;
|
| 266 |
PAVoiceOut *pa = (PAVoiceOut *) hw; |
| 267 |
|
| 268 |
if (audio_pt_lock (&pa->pt, AUDIO_FUNC)) {
|
| 269 |
return 0; |
| 270 |
} |
| 271 |
|
| 272 |
decr = audio_MIN (live, pa->decr); |
| 273 |
pa->decr -= decr; |
| 274 |
pa->live = live - decr; |
| 275 |
hw->rpos = pa->rpos; |
| 276 |
if (pa->live > 0) { |
| 277 |
audio_pt_unlock_and_signal (&pa->pt, AUDIO_FUNC); |
| 278 |
} |
| 279 |
else {
|
| 280 |
audio_pt_unlock (&pa->pt, AUDIO_FUNC); |
| 281 |
} |
| 282 |
return decr;
|
| 283 |
} |
| 284 |
|
| 285 |
static int qpa_write (SWVoiceOut *sw, void *buf, int len) |
| 286 |
{
|
| 287 |
return audio_pcm_sw_write (sw, buf, len);
|
| 288 |
} |
| 289 |
|
| 290 |
/* capture */
|
| 291 |
static void *qpa_thread_in (void *arg) |
| 292 |
{
|
| 293 |
PAVoiceIn *pa = arg; |
| 294 |
HWVoiceIn *hw = &pa->hw; |
| 295 |
|
| 296 |
if (audio_pt_lock (&pa->pt, AUDIO_FUNC)) {
|
| 297 |
return NULL; |
| 298 |
} |
| 299 |
|
| 300 |
for (;;) {
|
| 301 |
int incr, to_grab, wpos;
|
| 302 |
|
| 303 |
for (;;) {
|
| 304 |
if (pa->done) {
|
| 305 |
goto exit;
|
| 306 |
} |
| 307 |
|
| 308 |
if (pa->dead > 0) { |
| 309 |
break;
|
| 310 |
} |
| 311 |
|
| 312 |
if (audio_pt_wait (&pa->pt, AUDIO_FUNC)) {
|
| 313 |
goto exit;
|
| 314 |
} |
| 315 |
} |
| 316 |
|
| 317 |
incr = to_grab = audio_MIN (pa->dead, glob_paaudio.samples >> 2);
|
| 318 |
wpos = pa->wpos; |
| 319 |
|
| 320 |
if (audio_pt_unlock (&pa->pt, AUDIO_FUNC)) {
|
| 321 |
return NULL; |
| 322 |
} |
| 323 |
|
| 324 |
while (to_grab) {
|
| 325 |
int error;
|
| 326 |
int chunk = audio_MIN (to_grab, hw->samples - wpos);
|
| 327 |
void *buf = advance (pa->pcm_buf, wpos);
|
| 328 |
|
| 329 |
if (qpa_simple_read (pa, buf,
|
| 330 |
chunk << hw->info.shift, &error) < 0) {
|
| 331 |
qpa_logerr (error, "pa_simple_read failed\n");
|
| 332 |
return NULL; |
| 333 |
} |
| 334 |
|
| 335 |
hw->conv (hw->conv_buf + wpos, buf, chunk); |
| 336 |
wpos = (wpos + chunk) % hw->samples; |
| 337 |
to_grab -= chunk; |
| 338 |
} |
| 339 |
|
| 340 |
if (audio_pt_lock (&pa->pt, AUDIO_FUNC)) {
|
| 341 |
return NULL; |
| 342 |
} |
| 343 |
|
| 344 |
pa->wpos = wpos; |
| 345 |
pa->dead -= incr; |
| 346 |
pa->incr += incr; |
| 347 |
} |
| 348 |
|
| 349 |
exit:
|
| 350 |
audio_pt_unlock (&pa->pt, AUDIO_FUNC); |
| 351 |
return NULL; |
| 352 |
} |
| 353 |
|
| 354 |
static int qpa_run_in (HWVoiceIn *hw) |
| 355 |
{
|
| 356 |
int live, incr, dead;
|
| 357 |
PAVoiceIn *pa = (PAVoiceIn *) hw; |
| 358 |
|
| 359 |
if (audio_pt_lock (&pa->pt, AUDIO_FUNC)) {
|
| 360 |
return 0; |
| 361 |
} |
| 362 |
|
| 363 |
live = audio_pcm_hw_get_live_in (hw); |
| 364 |
dead = hw->samples - live; |
| 365 |
incr = audio_MIN (dead, pa->incr); |
| 366 |
pa->incr -= incr; |
| 367 |
pa->dead = dead - incr; |
| 368 |
hw->wpos = pa->wpos; |
| 369 |
if (pa->dead > 0) { |
| 370 |
audio_pt_unlock_and_signal (&pa->pt, AUDIO_FUNC); |
| 371 |
} |
| 372 |
else {
|
| 373 |
audio_pt_unlock (&pa->pt, AUDIO_FUNC); |
| 374 |
} |
| 375 |
return incr;
|
| 376 |
} |
| 377 |
|
| 378 |
static int qpa_read (SWVoiceIn *sw, void *buf, int len) |
| 379 |
{
|
| 380 |
return audio_pcm_sw_read (sw, buf, len);
|
| 381 |
} |
| 382 |
|
| 383 |
static pa_sample_format_t audfmt_to_pa (audfmt_e afmt, int endianness) |
| 384 |
{
|
| 385 |
int format;
|
| 386 |
|
| 387 |
switch (afmt) {
|
| 388 |
case AUD_FMT_S8:
|
| 389 |
case AUD_FMT_U8:
|
| 390 |
format = PA_SAMPLE_U8; |
| 391 |
break;
|
| 392 |
case AUD_FMT_S16:
|
| 393 |
case AUD_FMT_U16:
|
| 394 |
format = endianness ? PA_SAMPLE_S16BE : PA_SAMPLE_S16LE; |
| 395 |
break;
|
| 396 |
case AUD_FMT_S32:
|
| 397 |
case AUD_FMT_U32:
|
| 398 |
format = endianness ? PA_SAMPLE_S32BE : PA_SAMPLE_S32LE; |
| 399 |
break;
|
| 400 |
default:
|
| 401 |
dolog ("Internal logic error: Bad audio format %d\n", afmt);
|
| 402 |
format = PA_SAMPLE_U8; |
| 403 |
break;
|
| 404 |
} |
| 405 |
return format;
|
| 406 |
} |
| 407 |
|
| 408 |
static audfmt_e pa_to_audfmt (pa_sample_format_t fmt, int *endianness) |
| 409 |
{
|
| 410 |
switch (fmt) {
|
| 411 |
case PA_SAMPLE_U8:
|
| 412 |
return AUD_FMT_U8;
|
| 413 |
case PA_SAMPLE_S16BE:
|
| 414 |
*endianness = 1;
|
| 415 |
return AUD_FMT_S16;
|
| 416 |
case PA_SAMPLE_S16LE:
|
| 417 |
*endianness = 0;
|
| 418 |
return AUD_FMT_S16;
|
| 419 |
case PA_SAMPLE_S32BE:
|
| 420 |
*endianness = 1;
|
| 421 |
return AUD_FMT_S32;
|
| 422 |
case PA_SAMPLE_S32LE:
|
| 423 |
*endianness = 0;
|
| 424 |
return AUD_FMT_S32;
|
| 425 |
default:
|
| 426 |
dolog ("Internal logic error: Bad pa_sample_format %d\n", fmt);
|
| 427 |
return AUD_FMT_U8;
|
| 428 |
} |
| 429 |
} |
| 430 |
|
| 431 |
static void context_state_cb (pa_context *c, void *userdata) |
| 432 |
{
|
| 433 |
paaudio *g = &glob_paaudio; |
| 434 |
|
| 435 |
switch (pa_context_get_state(c)) {
|
| 436 |
case PA_CONTEXT_READY:
|
| 437 |
case PA_CONTEXT_TERMINATED:
|
| 438 |
case PA_CONTEXT_FAILED:
|
| 439 |
pa_threaded_mainloop_signal (g->mainloop, 0);
|
| 440 |
break;
|
| 441 |
|
| 442 |
case PA_CONTEXT_UNCONNECTED:
|
| 443 |
case PA_CONTEXT_CONNECTING:
|
| 444 |
case PA_CONTEXT_AUTHORIZING:
|
| 445 |
case PA_CONTEXT_SETTING_NAME:
|
| 446 |
break;
|
| 447 |
} |
| 448 |
} |
| 449 |
|
| 450 |
static void stream_state_cb (pa_stream *s, void * userdata) |
| 451 |
{
|
| 452 |
paaudio *g = &glob_paaudio; |
| 453 |
|
| 454 |
switch (pa_stream_get_state (s)) {
|
| 455 |
|
| 456 |
case PA_STREAM_READY:
|
| 457 |
case PA_STREAM_FAILED:
|
| 458 |
case PA_STREAM_TERMINATED:
|
| 459 |
pa_threaded_mainloop_signal (g->mainloop, 0);
|
| 460 |
break;
|
| 461 |
|
| 462 |
case PA_STREAM_UNCONNECTED:
|
| 463 |
case PA_STREAM_CREATING:
|
| 464 |
break;
|
| 465 |
} |
| 466 |
} |
| 467 |
|
| 468 |
static void stream_request_cb (pa_stream *s, size_t length, void *userdata) |
| 469 |
{
|
| 470 |
paaudio *g = &glob_paaudio; |
| 471 |
|
| 472 |
pa_threaded_mainloop_signal (g->mainloop, 0);
|
| 473 |
} |
| 474 |
|
| 475 |
static pa_stream *qpa_simple_new (
|
| 476 |
const char *server, |
| 477 |
const char *name, |
| 478 |
pa_stream_direction_t dir, |
| 479 |
const char *dev, |
| 480 |
const char *stream_name, |
| 481 |
const pa_sample_spec *ss,
|
| 482 |
const pa_channel_map *map,
|
| 483 |
const pa_buffer_attr *attr,
|
| 484 |
int *rerror)
|
| 485 |
{
|
| 486 |
paaudio *g = &glob_paaudio; |
| 487 |
int r;
|
| 488 |
pa_stream *stream; |
| 489 |
|
| 490 |
pa_threaded_mainloop_lock (g->mainloop); |
| 491 |
|
| 492 |
stream = pa_stream_new (g->context, name, ss, map); |
| 493 |
if (!stream) {
|
| 494 |
goto fail;
|
| 495 |
} |
| 496 |
|
| 497 |
pa_stream_set_state_callback (stream, stream_state_cb, g); |
| 498 |
pa_stream_set_read_callback (stream, stream_request_cb, g); |
| 499 |
pa_stream_set_write_callback (stream, stream_request_cb, g); |
| 500 |
|
| 501 |
if (dir == PA_STREAM_PLAYBACK) {
|
| 502 |
r = pa_stream_connect_playback (stream, dev, attr, |
| 503 |
PA_STREAM_INTERPOLATE_TIMING |
| 504 |
#ifdef PA_STREAM_ADJUST_LATENCY
|
| 505 |
|PA_STREAM_ADJUST_LATENCY |
| 506 |
#endif
|
| 507 |
|PA_STREAM_AUTO_TIMING_UPDATE, NULL, NULL); |
| 508 |
} else {
|
| 509 |
r = pa_stream_connect_record (stream, dev, attr, |
| 510 |
PA_STREAM_INTERPOLATE_TIMING |
| 511 |
#ifdef PA_STREAM_ADJUST_LATENCY
|
| 512 |
|PA_STREAM_ADJUST_LATENCY |
| 513 |
#endif
|
| 514 |
|PA_STREAM_AUTO_TIMING_UPDATE); |
| 515 |
} |
| 516 |
|
| 517 |
if (r < 0) { |
| 518 |
goto fail;
|
| 519 |
} |
| 520 |
|
| 521 |
pa_threaded_mainloop_unlock (g->mainloop); |
| 522 |
|
| 523 |
return stream;
|
| 524 |
|
| 525 |
fail:
|
| 526 |
pa_threaded_mainloop_unlock (g->mainloop); |
| 527 |
|
| 528 |
if (stream) {
|
| 529 |
pa_stream_unref (stream); |
| 530 |
} |
| 531 |
|
| 532 |
*rerror = pa_context_errno (g->context); |
| 533 |
|
| 534 |
return NULL; |
| 535 |
} |
| 536 |
|
| 537 |
static int qpa_init_out (HWVoiceOut *hw, struct audsettings *as) |
| 538 |
{
|
| 539 |
int error;
|
| 540 |
static pa_sample_spec ss;
|
| 541 |
static pa_buffer_attr ba;
|
| 542 |
struct audsettings obt_as = *as;
|
| 543 |
PAVoiceOut *pa = (PAVoiceOut *) hw; |
| 544 |
|
| 545 |
ss.format = audfmt_to_pa (as->fmt, as->endianness); |
| 546 |
ss.channels = as->nchannels; |
| 547 |
ss.rate = as->freq; |
| 548 |
|
| 549 |
/*
|
| 550 |
* qemu audio tick runs at 250 Hz (by default), so processing
|
| 551 |
* data chunks worth 4 ms of sound should be a good fit.
|
| 552 |
*/
|
| 553 |
ba.tlength = pa_usec_to_bytes (4 * 1000, &ss); |
| 554 |
ba.minreq = pa_usec_to_bytes (2 * 1000, &ss); |
| 555 |
ba.maxlength = -1;
|
| 556 |
ba.prebuf = -1;
|
| 557 |
|
| 558 |
obt_as.fmt = pa_to_audfmt (ss.format, &obt_as.endianness); |
| 559 |
|
| 560 |
pa->stream = qpa_simple_new ( |
| 561 |
glob_paaudio.server, |
| 562 |
"qemu",
|
| 563 |
PA_STREAM_PLAYBACK, |
| 564 |
glob_paaudio.sink, |
| 565 |
"pcm.playback",
|
| 566 |
&ss, |
| 567 |
NULL, /* channel map */ |
| 568 |
&ba, /* buffering attributes */
|
| 569 |
&error |
| 570 |
); |
| 571 |
if (!pa->stream) {
|
| 572 |
qpa_logerr (error, "pa_simple_new for playback failed\n");
|
| 573 |
goto fail1;
|
| 574 |
} |
| 575 |
|
| 576 |
audio_pcm_init_info (&hw->info, &obt_as); |
| 577 |
hw->samples = glob_paaudio.samples; |
| 578 |
pa->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
|
| 579 |
pa->rpos = hw->rpos; |
| 580 |
if (!pa->pcm_buf) {
|
| 581 |
dolog ("Could not allocate buffer (%d bytes)\n",
|
| 582 |
hw->samples << hw->info.shift); |
| 583 |
goto fail2;
|
| 584 |
} |
| 585 |
|
| 586 |
if (audio_pt_init (&pa->pt, qpa_thread_out, hw, AUDIO_CAP, AUDIO_FUNC)) {
|
| 587 |
goto fail3;
|
| 588 |
} |
| 589 |
|
| 590 |
return 0; |
| 591 |
|
| 592 |
fail3:
|
| 593 |
g_free (pa->pcm_buf); |
| 594 |
pa->pcm_buf = NULL;
|
| 595 |
fail2:
|
| 596 |
if (pa->stream) {
|
| 597 |
pa_stream_unref (pa->stream); |
| 598 |
pa->stream = NULL;
|
| 599 |
} |
| 600 |
fail1:
|
| 601 |
return -1; |
| 602 |
} |
| 603 |
|
| 604 |
static int qpa_init_in (HWVoiceIn *hw, struct audsettings *as) |
| 605 |
{
|
| 606 |
int error;
|
| 607 |
static pa_sample_spec ss;
|
| 608 |
struct audsettings obt_as = *as;
|
| 609 |
PAVoiceIn *pa = (PAVoiceIn *) hw; |
| 610 |
|
| 611 |
ss.format = audfmt_to_pa (as->fmt, as->endianness); |
| 612 |
ss.channels = as->nchannels; |
| 613 |
ss.rate = as->freq; |
| 614 |
|
| 615 |
obt_as.fmt = pa_to_audfmt (ss.format, &obt_as.endianness); |
| 616 |
|
| 617 |
pa->stream = qpa_simple_new ( |
| 618 |
glob_paaudio.server, |
| 619 |
"qemu",
|
| 620 |
PA_STREAM_RECORD, |
| 621 |
glob_paaudio.source, |
| 622 |
"pcm.capture",
|
| 623 |
&ss, |
| 624 |
NULL, /* channel map */ |
| 625 |
NULL, /* buffering attributes */ |
| 626 |
&error |
| 627 |
); |
| 628 |
if (!pa->stream) {
|
| 629 |
qpa_logerr (error, "pa_simple_new for capture failed\n");
|
| 630 |
goto fail1;
|
| 631 |
} |
| 632 |
|
| 633 |
audio_pcm_init_info (&hw->info, &obt_as); |
| 634 |
hw->samples = glob_paaudio.samples; |
| 635 |
pa->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
|
| 636 |
pa->wpos = hw->wpos; |
| 637 |
if (!pa->pcm_buf) {
|
| 638 |
dolog ("Could not allocate buffer (%d bytes)\n",
|
| 639 |
hw->samples << hw->info.shift); |
| 640 |
goto fail2;
|
| 641 |
} |
| 642 |
|
| 643 |
if (audio_pt_init (&pa->pt, qpa_thread_in, hw, AUDIO_CAP, AUDIO_FUNC)) {
|
| 644 |
goto fail3;
|
| 645 |
} |
| 646 |
|
| 647 |
return 0; |
| 648 |
|
| 649 |
fail3:
|
| 650 |
g_free (pa->pcm_buf); |
| 651 |
pa->pcm_buf = NULL;
|
| 652 |
fail2:
|
| 653 |
if (pa->stream) {
|
| 654 |
pa_stream_unref (pa->stream); |
| 655 |
pa->stream = NULL;
|
| 656 |
} |
| 657 |
fail1:
|
| 658 |
return -1; |
| 659 |
} |
| 660 |
|
| 661 |
static void qpa_fini_out (HWVoiceOut *hw) |
| 662 |
{
|
| 663 |
void *ret;
|
| 664 |
PAVoiceOut *pa = (PAVoiceOut *) hw; |
| 665 |
|
| 666 |
audio_pt_lock (&pa->pt, AUDIO_FUNC); |
| 667 |
pa->done = 1;
|
| 668 |
audio_pt_unlock_and_signal (&pa->pt, AUDIO_FUNC); |
| 669 |
audio_pt_join (&pa->pt, &ret, AUDIO_FUNC); |
| 670 |
|
| 671 |
if (pa->stream) {
|
| 672 |
pa_stream_unref (pa->stream); |
| 673 |
pa->stream = NULL;
|
| 674 |
} |
| 675 |
|
| 676 |
audio_pt_fini (&pa->pt, AUDIO_FUNC); |
| 677 |
g_free (pa->pcm_buf); |
| 678 |
pa->pcm_buf = NULL;
|
| 679 |
} |
| 680 |
|
| 681 |
static void qpa_fini_in (HWVoiceIn *hw) |
| 682 |
{
|
| 683 |
void *ret;
|
| 684 |
PAVoiceIn *pa = (PAVoiceIn *) hw; |
| 685 |
|
| 686 |
audio_pt_lock (&pa->pt, AUDIO_FUNC); |
| 687 |
pa->done = 1;
|
| 688 |
audio_pt_unlock_and_signal (&pa->pt, AUDIO_FUNC); |
| 689 |
audio_pt_join (&pa->pt, &ret, AUDIO_FUNC); |
| 690 |
|
| 691 |
if (pa->stream) {
|
| 692 |
pa_stream_unref (pa->stream); |
| 693 |
pa->stream = NULL;
|
| 694 |
} |
| 695 |
|
| 696 |
audio_pt_fini (&pa->pt, AUDIO_FUNC); |
| 697 |
g_free (pa->pcm_buf); |
| 698 |
pa->pcm_buf = NULL;
|
| 699 |
} |
| 700 |
|
| 701 |
static int qpa_ctl_out (HWVoiceOut *hw, int cmd, ...) |
| 702 |
{
|
| 703 |
PAVoiceOut *pa = (PAVoiceOut *) hw; |
| 704 |
pa_operation *op; |
| 705 |
pa_cvolume v; |
| 706 |
paaudio *g = &glob_paaudio; |
| 707 |
|
| 708 |
#ifdef PA_CHECK_VERSION /* macro is present in 0.9.16+ */ |
| 709 |
pa_cvolume_init (&v); /* function is present in 0.9.13+ */
|
| 710 |
#endif
|
| 711 |
|
| 712 |
switch (cmd) {
|
| 713 |
case VOICE_VOLUME:
|
| 714 |
{
|
| 715 |
SWVoiceOut *sw; |
| 716 |
va_list ap; |
| 717 |
|
| 718 |
va_start (ap, cmd); |
| 719 |
sw = va_arg (ap, SWVoiceOut *); |
| 720 |
va_end (ap); |
| 721 |
|
| 722 |
v.channels = 2;
|
| 723 |
v.values[0] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.l) / UINT32_MAX;
|
| 724 |
v.values[1] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.r) / UINT32_MAX;
|
| 725 |
|
| 726 |
pa_threaded_mainloop_lock (g->mainloop); |
| 727 |
|
| 728 |
op = pa_context_set_sink_input_volume (g->context, |
| 729 |
pa_stream_get_index (pa->stream), |
| 730 |
&v, NULL, NULL); |
| 731 |
if (!op)
|
| 732 |
qpa_logerr (pa_context_errno (g->context), |
| 733 |
"set_sink_input_volume() failed\n");
|
| 734 |
else
|
| 735 |
pa_operation_unref (op); |
| 736 |
|
| 737 |
op = pa_context_set_sink_input_mute (g->context, |
| 738 |
pa_stream_get_index (pa->stream), |
| 739 |
sw->vol.mute, NULL, NULL); |
| 740 |
if (!op) {
|
| 741 |
qpa_logerr (pa_context_errno (g->context), |
| 742 |
"set_sink_input_mute() failed\n");
|
| 743 |
} else {
|
| 744 |
pa_operation_unref (op); |
| 745 |
} |
| 746 |
|
| 747 |
pa_threaded_mainloop_unlock (g->mainloop); |
| 748 |
} |
| 749 |
} |
| 750 |
return 0; |
| 751 |
} |
| 752 |
|
| 753 |
static int qpa_ctl_in (HWVoiceIn *hw, int cmd, ...) |
| 754 |
{
|
| 755 |
PAVoiceIn *pa = (PAVoiceIn *) hw; |
| 756 |
pa_operation *op; |
| 757 |
pa_cvolume v; |
| 758 |
paaudio *g = &glob_paaudio; |
| 759 |
|
| 760 |
#ifdef PA_CHECK_VERSION
|
| 761 |
pa_cvolume_init (&v); |
| 762 |
#endif
|
| 763 |
|
| 764 |
switch (cmd) {
|
| 765 |
case VOICE_VOLUME:
|
| 766 |
{
|
| 767 |
SWVoiceIn *sw; |
| 768 |
va_list ap; |
| 769 |
|
| 770 |
va_start (ap, cmd); |
| 771 |
sw = va_arg (ap, SWVoiceIn *); |
| 772 |
va_end (ap); |
| 773 |
|
| 774 |
v.channels = 2;
|
| 775 |
v.values[0] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.l) / UINT32_MAX;
|
| 776 |
v.values[1] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.r) / UINT32_MAX;
|
| 777 |
|
| 778 |
pa_threaded_mainloop_lock (g->mainloop); |
| 779 |
|
| 780 |
/* FIXME: use the upcoming "set_source_output_{volume,mute}" */
|
| 781 |
op = pa_context_set_source_volume_by_index (g->context, |
| 782 |
pa_stream_get_device_index (pa->stream), |
| 783 |
&v, NULL, NULL); |
| 784 |
if (!op) {
|
| 785 |
qpa_logerr (pa_context_errno (g->context), |
| 786 |
"set_source_volume() failed\n");
|
| 787 |
} else {
|
| 788 |
pa_operation_unref(op); |
| 789 |
} |
| 790 |
|
| 791 |
op = pa_context_set_source_mute_by_index (g->context, |
| 792 |
pa_stream_get_index (pa->stream), |
| 793 |
sw->vol.mute, NULL, NULL); |
| 794 |
if (!op) {
|
| 795 |
qpa_logerr (pa_context_errno (g->context), |
| 796 |
"set_source_mute() failed\n");
|
| 797 |
} else {
|
| 798 |
pa_operation_unref (op); |
| 799 |
} |
| 800 |
|
| 801 |
pa_threaded_mainloop_unlock (g->mainloop); |
| 802 |
} |
| 803 |
} |
| 804 |
return 0; |
| 805 |
} |
| 806 |
|
| 807 |
/* common */
|
| 808 |
static void *qpa_audio_init (void) |
| 809 |
{
|
| 810 |
paaudio *g = &glob_paaudio; |
| 811 |
|
| 812 |
g->mainloop = pa_threaded_mainloop_new (); |
| 813 |
if (!g->mainloop) {
|
| 814 |
goto fail;
|
| 815 |
} |
| 816 |
|
| 817 |
g->context = pa_context_new (pa_threaded_mainloop_get_api (g->mainloop), glob_paaudio.server); |
| 818 |
if (!g->context) {
|
| 819 |
goto fail;
|
| 820 |
} |
| 821 |
|
| 822 |
pa_context_set_state_callback (g->context, context_state_cb, g); |
| 823 |
|
| 824 |
if (pa_context_connect (g->context, glob_paaudio.server, 0, NULL) < 0) { |
| 825 |
qpa_logerr (pa_context_errno (g->context), |
| 826 |
"pa_context_connect() failed\n");
|
| 827 |
goto fail;
|
| 828 |
} |
| 829 |
|
| 830 |
pa_threaded_mainloop_lock (g->mainloop); |
| 831 |
|
| 832 |
if (pa_threaded_mainloop_start (g->mainloop) < 0) { |
| 833 |
goto unlock_and_fail;
|
| 834 |
} |
| 835 |
|
| 836 |
for (;;) {
|
| 837 |
pa_context_state_t state; |
| 838 |
|
| 839 |
state = pa_context_get_state (g->context); |
| 840 |
|
| 841 |
if (state == PA_CONTEXT_READY) {
|
| 842 |
break;
|
| 843 |
} |
| 844 |
|
| 845 |
if (!PA_CONTEXT_IS_GOOD (state)) {
|
| 846 |
qpa_logerr (pa_context_errno (g->context), |
| 847 |
"Wrong context state\n");
|
| 848 |
goto unlock_and_fail;
|
| 849 |
} |
| 850 |
|
| 851 |
/* Wait until the context is ready */
|
| 852 |
pa_threaded_mainloop_wait (g->mainloop); |
| 853 |
} |
| 854 |
|
| 855 |
pa_threaded_mainloop_unlock (g->mainloop); |
| 856 |
|
| 857 |
return &glob_paaudio;
|
| 858 |
|
| 859 |
unlock_and_fail:
|
| 860 |
pa_threaded_mainloop_unlock (g->mainloop); |
| 861 |
fail:
|
| 862 |
AUD_log (AUDIO_CAP, "Failed to initialize PA context");
|
| 863 |
return NULL; |
| 864 |
} |
| 865 |
|
| 866 |
static void qpa_audio_fini (void *opaque) |
| 867 |
{
|
| 868 |
paaudio *g = opaque; |
| 869 |
|
| 870 |
if (g->mainloop) {
|
| 871 |
pa_threaded_mainloop_stop (g->mainloop); |
| 872 |
} |
| 873 |
|
| 874 |
if (g->context) {
|
| 875 |
pa_context_disconnect (g->context); |
| 876 |
pa_context_unref (g->context); |
| 877 |
g->context = NULL;
|
| 878 |
} |
| 879 |
|
| 880 |
if (g->mainloop) {
|
| 881 |
pa_threaded_mainloop_free (g->mainloop); |
| 882 |
} |
| 883 |
|
| 884 |
g->mainloop = NULL;
|
| 885 |
} |
| 886 |
|
| 887 |
struct audio_option qpa_options[] = {
|
| 888 |
{
|
| 889 |
.name = "SAMPLES",
|
| 890 |
.tag = AUD_OPT_INT, |
| 891 |
.valp = &glob_paaudio.samples, |
| 892 |
.descr = "buffer size in samples"
|
| 893 |
}, |
| 894 |
{
|
| 895 |
.name = "SERVER",
|
| 896 |
.tag = AUD_OPT_STR, |
| 897 |
.valp = &glob_paaudio.server, |
| 898 |
.descr = "server address"
|
| 899 |
}, |
| 900 |
{
|
| 901 |
.name = "SINK",
|
| 902 |
.tag = AUD_OPT_STR, |
| 903 |
.valp = &glob_paaudio.sink, |
| 904 |
.descr = "sink device name"
|
| 905 |
}, |
| 906 |
{
|
| 907 |
.name = "SOURCE",
|
| 908 |
.tag = AUD_OPT_STR, |
| 909 |
.valp = &glob_paaudio.source, |
| 910 |
.descr = "source device name"
|
| 911 |
}, |
| 912 |
{ /* End of list */ }
|
| 913 |
}; |
| 914 |
|
| 915 |
static struct audio_pcm_ops qpa_pcm_ops = { |
| 916 |
.init_out = qpa_init_out, |
| 917 |
.fini_out = qpa_fini_out, |
| 918 |
.run_out = qpa_run_out, |
| 919 |
.write = qpa_write, |
| 920 |
.ctl_out = qpa_ctl_out, |
| 921 |
|
| 922 |
.init_in = qpa_init_in, |
| 923 |
.fini_in = qpa_fini_in, |
| 924 |
.run_in = qpa_run_in, |
| 925 |
.read = qpa_read, |
| 926 |
.ctl_in = qpa_ctl_in |
| 927 |
}; |
| 928 |
|
| 929 |
struct audio_driver pa_audio_driver = {
|
| 930 |
.name = "pa",
|
| 931 |
.descr = "http://www.pulseaudio.org/",
|
| 932 |
.options = qpa_options, |
| 933 |
.init = qpa_audio_init, |
| 934 |
.fini = qpa_audio_fini, |
| 935 |
.pcm_ops = &qpa_pcm_ops, |
| 936 |
.can_be_default = 1,
|
| 937 |
.max_voices_out = INT_MAX, |
| 938 |
.max_voices_in = INT_MAX, |
| 939 |
.voice_size_out = sizeof (PAVoiceOut),
|
| 940 |
.voice_size_in = sizeof (PAVoiceIn),
|
| 941 |
.ctl_caps = VOICE_VOLUME_CAP |
| 942 |
}; |