4 This file is part of polypaudio.
6 polypaudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2 of the License,
9 or (at your option) any later version.
11 polypaudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with polypaudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
30 #include <sys/types.h>
34 #include <polyp/version.h>
35 #include <polyp/xmalloc.h>
37 #include <polypcore/module.h>
38 #include <polypcore/core-util.h>
39 #include <polypcore/modargs.h>
40 #include <polypcore/log.h>
41 #include <polypcore/core-subscribe.h>
42 #include <polypcore/sink-input.h>
43 #include <polypcore/pdispatch.h>
44 #include <polypcore/pstream.h>
45 #include <polypcore/pstream-util.h>
46 #include <polypcore/authkey.h>
47 #include <polypcore/socket-client.h>
48 #include <polypcore/socket-util.h>
49 #include <polypcore/authkey-prop.h>
52 #include "module-tunnel-sink-symdef.h"
53 PA_MODULE_DESCRIPTION("Tunnel module for sinks")
56 "sink=<remote sink name> "
58 "format=<sample format> "
59 "channels=<number of channels> "
61 "sink_name=<name for the local sink> "
62 "channel_map=<channel map>")
64 #include "module-tunnel-source-symdef.h"
65 PA_MODULE_DESCRIPTION("Tunnel module for sources")
68 "source=<remote source name> "
70 "format=<sample format> "
71 "channels=<number of channels> "
73 "source_name=<name for the local source> "
74 "channel_map=<channel map>")
77 PA_MODULE_AUTHOR("Lennart Poettering")
78 PA_MODULE_VERSION(PACKAGE_VERSION
)
80 #define DEFAULT_SINK_NAME "tunnel"
81 #define DEFAULT_SOURCE_NAME "tunnel"
83 #define DEFAULT_TLENGTH (44100*2*2/10) //(10240*8)
84 #define DEFAULT_MAXLENGTH ((DEFAULT_TLENGTH*3)/2)
85 #define DEFAULT_MINREQ 512
86 #define DEFAULT_PREBUF (DEFAULT_TLENGTH-DEFAULT_MINREQ)
87 #define DEFAULT_FRAGSIZE 1024
89 #define DEFAULT_TIMEOUT 5
91 #define LATENCY_INTERVAL 10
93 static const char* const valid_modargs
[] = {
110 static void command_stream_killed(pa_pdispatch
*pd
, uint32_t command
, uint32_t tag
, pa_tagstruct
*t
, void *userdata
);
111 static void command_subscribe_event(pa_pdispatch
*pd
, uint32_t command
, uint32_t tag
, pa_tagstruct
*t
, void *userdata
);
114 static void command_request(pa_pdispatch
*pd
, uint32_t command
, uint32_t tag
, pa_tagstruct
*t
, void *userdata
);
117 static const pa_pdispatch_cb_t command_table
[PA_COMMAND_MAX
] = {
119 [PA_COMMAND_REQUEST
] = command_request
,
121 [PA_COMMAND_PLAYBACK_STREAM_KILLED
] = command_stream_killed
,
122 [PA_COMMAND_RECORD_STREAM_KILLED
] = command_stream_killed
,
123 [PA_COMMAND_SUBSCRIBE_EVENT
] = command_subscribe_event
,
127 pa_socket_client
*client
;
129 pa_pdispatch
*pdispatch
;
135 uint32_t requested_bytes
;
144 uint8_t auth_cookie
[PA_NATIVE_COOKIE_LENGTH
];
148 uint32_t device_index
;
151 pa_usec_t host_latency
;
153 pa_time_event
*time_event
;
155 int auth_cookie_in_property
;
158 static void close_stuff(struct userdata
*u
) {
162 pa_pstream_close(u
->pstream
);
163 pa_pstream_unref(u
->pstream
);
168 pa_pdispatch_unref(u
->pdispatch
);
173 pa_socket_client_unref(u
->client
);
179 pa_sink_disconnect(u
->sink
);
180 pa_sink_unref(u
->sink
);
185 pa_source_disconnect(u
->source
);
186 pa_source_unref(u
->source
);
192 u
->core
->mainloop
->time_free(u
->time_event
);
193 u
->time_event
= NULL
;
197 static void die(struct userdata
*u
) {
200 pa_module_unload_request(u
->module
);
203 static void command_stream_killed(pa_pdispatch
*pd
, PA_GCC_UNUSED
uint32_t command
, PA_GCC_UNUSED
uint32_t tag
, pa_tagstruct
*t
, void *userdata
) {
204 struct userdata
*u
= userdata
;
205 assert(pd
&& t
&& u
&& u
->pdispatch
== pd
);
207 pa_log(__FILE__
": stream killed");
211 static void request_info(struct userdata
*u
);
213 static void command_subscribe_event(pa_pdispatch
*pd
, PA_GCC_UNUSED
uint32_t command
, PA_GCC_UNUSED
uint32_t tag
, pa_tagstruct
*t
, void *userdata
) {
214 struct userdata
*u
= userdata
;
215 pa_subscription_event_type_t e
;
218 assert(pd
&& t
&& u
);
219 assert(command
== PA_COMMAND_SUBSCRIBE_EVENT
);
221 if (pa_tagstruct_getu32(t
, &e
) < 0 ||
222 pa_tagstruct_getu32(t
, &idx
) < 0 ||
223 !pa_tagstruct_eof(t
)) {
224 pa_log(__FILE__
": invalid protocol reply");
230 if (e
!= (PA_SUBSCRIPTION_EVENT_SINK
|PA_SUBSCRIPTION_EVENT_CHANGE
))
233 if (e
!= (PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
))
241 static void send_prebuf_request(struct userdata
*u
) {
244 t
= pa_tagstruct_new(NULL
, 0);
245 pa_tagstruct_putu32(t
, PA_COMMAND_PREBUF_PLAYBACK_STREAM
);
246 pa_tagstruct_putu32(t
, u
->ctag
++);
247 pa_tagstruct_putu32(t
, u
->channel
);
248 pa_pstream_send_tagstruct(u
->pstream
, t
);
251 static void send_bytes(struct userdata
*u
) {
257 while (u
->requested_bytes
> 0) {
259 if (pa_sink_render(u
->sink
, u
->requested_bytes
, &chunk
) < 0) {
261 if (u
->requested_bytes
>= DEFAULT_TLENGTH
-DEFAULT_PREBUF
)
262 send_prebuf_request(u
);
267 pa_pstream_send_memblock(u
->pstream
, u
->channel
, 0, PA_SEEK_RELATIVE
, &chunk
);
268 pa_memblock_unref(chunk
.memblock
);
270 if (chunk
.length
> u
->requested_bytes
)
271 u
->requested_bytes
= 0;
273 u
->requested_bytes
-= chunk
.length
;
277 static void command_request(pa_pdispatch
*pd
, uint32_t command
, PA_GCC_UNUSED
uint32_t tag
, pa_tagstruct
*t
, void *userdata
) {
278 struct userdata
*u
= userdata
;
279 uint32_t bytes
, channel
;
280 assert(pd
&& command
== PA_COMMAND_REQUEST
&& t
&& u
&& u
->pdispatch
== pd
);
282 if (pa_tagstruct_getu32(t
, &channel
) < 0 ||
283 pa_tagstruct_getu32(t
, &bytes
) < 0 ||
284 !pa_tagstruct_eof(t
)) {
285 pa_log(__FILE__
": invalid protocol reply");
290 if (channel
!= u
->channel
) {
291 pa_log(__FILE__
": recieved data for invalid channel");
296 u
->requested_bytes
+= bytes
;
302 static void stream_get_latency_callback(pa_pdispatch
*pd
, uint32_t command
, PA_GCC_UNUSED
uint32_t tag
, pa_tagstruct
*t
, void *userdata
) {
303 struct userdata
*u
= userdata
;
304 pa_usec_t sink_usec
, source_usec
, transport_usec
;
306 int64_t write_index
, read_index
;
307 struct timeval local
, remote
, now
;
310 if (command
!= PA_COMMAND_REPLY
) {
311 if (command
== PA_COMMAND_ERROR
)
312 pa_log(__FILE__
": failed to get latency.");
314 pa_log(__FILE__
": protocol error.");
319 if (pa_tagstruct_get_usec(t
, &sink_usec
) < 0 ||
320 pa_tagstruct_get_usec(t
, &source_usec
) < 0 ||
321 pa_tagstruct_get_boolean(t
, &playing
) < 0 ||
322 pa_tagstruct_get_timeval(t
, &local
) < 0 ||
323 pa_tagstruct_get_timeval(t
, &remote
) < 0 ||
324 pa_tagstruct_gets64(t
, &write_index
) < 0 ||
325 pa_tagstruct_gets64(t
, &read_index
) < 0 ||
326 !pa_tagstruct_eof(t
)) {
327 pa_log(__FILE__
": invalid reply. (latency)");
332 pa_gettimeofday(&now
);
334 if (pa_timeval_cmp(&local
, &remote
) < 0 && pa_timeval_cmp(&remote
, &now
)) {
335 /* local and remote seem to have synchronized clocks */
337 transport_usec
= pa_timeval_diff(&remote
, &local
);
339 transport_usec
= pa_timeval_diff(&now
, &remote
);
342 transport_usec
= pa_timeval_diff(&now
, &local
)/2;
345 u
->host_latency
= sink_usec
+ transport_usec
;
347 u
->host_latency
= source_usec
+ transport_usec
;
348 if (u
->host_latency
> sink_usec
)
349 u
->host_latency
-= sink_usec
;
354 /* pa_log(__FILE__": estimated host latency: %0.0f usec", (double) u->host_latency); */
357 static void request_latency(struct userdata
*u
) {
363 t
= pa_tagstruct_new(NULL
, 0);
365 pa_tagstruct_putu32(t
, PA_COMMAND_GET_PLAYBACK_LATENCY
);
367 pa_tagstruct_putu32(t
, PA_COMMAND_GET_RECORD_LATENCY
);
369 pa_tagstruct_putu32(t
, tag
= u
->ctag
++);
370 pa_tagstruct_putu32(t
, u
->channel
);
372 pa_gettimeofday(&now
);
373 pa_tagstruct_put_timeval(t
, &now
);
375 pa_pstream_send_tagstruct(u
->pstream
, t
);
376 pa_pdispatch_register_reply(u
->pdispatch
, tag
, DEFAULT_TIMEOUT
, stream_get_latency_callback
, u
, NULL
);
379 static void stream_get_info_callback(pa_pdispatch
*pd
, uint32_t command
, PA_GCC_UNUSED
uint32_t tag
, pa_tagstruct
*t
, void *userdata
) {
380 struct userdata
*u
= userdata
;
381 uint32_t idx
, owner_module
, monitor_source
;
383 const char *name
, *description
, *monitor_source_name
, *driver
;
386 pa_sample_spec sample_spec
;
387 pa_channel_map channel_map
;
391 if (command
!= PA_COMMAND_REPLY
) {
392 if (command
== PA_COMMAND_ERROR
)
393 pa_log(__FILE__
": failed to get info.");
395 pa_log(__FILE__
": protocol error.");
400 if (pa_tagstruct_getu32(t
, &idx
) < 0 ||
401 pa_tagstruct_gets(t
, &name
) < 0 ||
402 pa_tagstruct_gets(t
, &description
) < 0 ||
403 pa_tagstruct_get_sample_spec(t
, &sample_spec
) < 0 ||
404 pa_tagstruct_get_channel_map(t
, &channel_map
) < 0 ||
405 pa_tagstruct_getu32(t
, &owner_module
) < 0 ||
406 pa_tagstruct_get_cvolume(t
, &volume
) < 0 ||
407 pa_tagstruct_get_boolean(t
, &mute
) < 0 ||
408 pa_tagstruct_getu32(t
, &monitor_source
) < 0 ||
409 pa_tagstruct_gets(t
, &monitor_source_name
) < 0 ||
410 pa_tagstruct_get_usec(t
, &latency
) < 0 ||
411 pa_tagstruct_gets(t
, &driver
) < 0 ||
412 pa_tagstruct_getu32(t
, &flags
) < 0 ||
413 !pa_tagstruct_eof(t
)) {
414 pa_log(__FILE__
": invalid reply. (get_info)");
421 if ((!!mute
== !!u
->sink
->hw_muted
) &&
422 pa_cvolume_equal(&volume
, &u
->sink
->hw_volume
))
426 if ((!!mute
== !!u
->source
->hw_muted
) &&
427 pa_cvolume_equal(&volume
, &u
->source
->hw_volume
))
432 memcpy(&u
->sink
->hw_volume
, &volume
, sizeof(pa_cvolume
));
433 u
->sink
->hw_muted
= !!mute
;
435 pa_subscription_post(u
->sink
->core
,
436 PA_SUBSCRIPTION_EVENT_SINK
|PA_SUBSCRIPTION_EVENT_CHANGE
,
439 memcpy(&u
->source
->hw_volume
, &volume
, sizeof(pa_cvolume
));
440 u
->source
->hw_muted
= !!mute
;
442 pa_subscription_post(u
->source
->core
,
443 PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
,
448 static void request_info(struct userdata
*u
) {
453 t
= pa_tagstruct_new(NULL
, 0);
455 pa_tagstruct_putu32(t
, PA_COMMAND_GET_SINK_INFO
);
457 pa_tagstruct_putu32(t
, PA_COMMAND_GET_SOURCE_INFO
);
459 pa_tagstruct_putu32(t
, tag
= u
->ctag
++);
461 pa_tagstruct_putu32(t
, PA_INVALID_INDEX
);
463 pa_tagstruct_puts(t
, u
->sink_name
);
465 pa_tagstruct_puts(t
, u
->source_name
);
468 pa_pstream_send_tagstruct(u
->pstream
, t
);
469 pa_pdispatch_register_reply(u
->pdispatch
, tag
, DEFAULT_TIMEOUT
, stream_get_info_callback
, u
, NULL
);
472 static void start_subscribe(struct userdata
*u
) {
477 t
= pa_tagstruct_new(NULL
, 0);
478 pa_tagstruct_putu32(t
, PA_COMMAND_SUBSCRIBE
);
479 pa_tagstruct_putu32(t
, tag
= u
->ctag
++);
482 pa_tagstruct_putu32(t
, PA_SUBSCRIPTION_MASK_SINK
);
484 pa_tagstruct_putu32(t
, PA_SUBSCRIPTION_MASK_SOURCE
);
487 pa_pstream_send_tagstruct(u
->pstream
, t
);
490 static void create_stream_callback(pa_pdispatch
*pd
, uint32_t command
, PA_GCC_UNUSED
uint32_t tag
, pa_tagstruct
*t
, void *userdata
) {
491 struct userdata
*u
= userdata
;
492 assert(pd
&& u
&& u
->pdispatch
== pd
);
494 if (command
!= PA_COMMAND_REPLY
) {
495 if (command
== PA_COMMAND_ERROR
)
496 pa_log(__FILE__
": failed to create stream.");
498 pa_log(__FILE__
": protocol error.");
503 if (pa_tagstruct_getu32(t
, &u
->channel
) < 0 ||
504 pa_tagstruct_getu32(t
, &u
->device_index
) < 0 ||
506 pa_tagstruct_getu32(t
, &u
->requested_bytes
) < 0 ||
508 !pa_tagstruct_eof(t
)) {
509 pa_log(__FILE__
": invalid reply. (create stream)");
523 static void setup_complete_callback(pa_pdispatch
*pd
, uint32_t command
, uint32_t tag
, pa_tagstruct
*t
, void *userdata
) {
524 struct userdata
*u
= userdata
;
526 char name
[256], un
[128], hn
[128];
530 assert(pd
&& u
&& u
->pdispatch
== pd
);
532 if (command
!= PA_COMMAND_REPLY
||
533 pa_tagstruct_getu32(t
, &u
->version
) < 0 ||
534 !pa_tagstruct_eof(t
)) {
535 if (command
== PA_COMMAND_ERROR
)
536 pa_log(__FILE__
": failed to authenticate");
538 pa_log(__FILE__
": protocol error.");
543 /* Minimum supported protocol version */
544 if (u
->version
< 8) {
545 pa_log(__FILE__
": incompatible protocol version");
551 snprintf(name
, sizeof(name
), "Tunnel from host '%s', user '%s', sink '%s'",
552 pa_get_host_name(hn
, sizeof(hn
)),
553 pa_get_user_name(un
, sizeof(un
)),
556 snprintf(name
, sizeof(name
), "Tunnel from host '%s', user '%s', source '%s'",
557 pa_get_host_name(hn
, sizeof(hn
)),
558 pa_get_user_name(un
, sizeof(un
)),
562 reply
= pa_tagstruct_new(NULL
, 0);
563 pa_tagstruct_putu32(reply
, PA_COMMAND_SET_CLIENT_NAME
);
564 pa_tagstruct_putu32(reply
, tag
= u
->ctag
++);
565 pa_tagstruct_puts(reply
, name
);
566 pa_pstream_send_tagstruct(u
->pstream
, reply
);
567 /* We ignore the server's reply here */
569 reply
= pa_tagstruct_new(NULL
, 0);
571 pa_tagstruct_putu32(reply
, PA_COMMAND_CREATE_PLAYBACK_STREAM
);
572 pa_tagstruct_putu32(reply
, tag
= u
->ctag
++);
573 pa_tagstruct_puts(reply
, name
);
574 pa_tagstruct_put_sample_spec(reply
, &u
->sink
->sample_spec
);
575 pa_tagstruct_put_channel_map(reply
, &u
->sink
->channel_map
);
576 pa_tagstruct_putu32(reply
, PA_INVALID_INDEX
);
577 pa_tagstruct_puts(reply
, u
->sink_name
);
578 pa_tagstruct_putu32(reply
, DEFAULT_MAXLENGTH
);
579 pa_tagstruct_put_boolean(reply
, 0);
580 pa_tagstruct_putu32(reply
, DEFAULT_TLENGTH
);
581 pa_tagstruct_putu32(reply
, DEFAULT_PREBUF
);
582 pa_tagstruct_putu32(reply
, DEFAULT_MINREQ
);
583 pa_tagstruct_putu32(reply
, 0);
584 pa_cvolume_reset(&volume
, u
->sink
->sample_spec
.channels
);
585 pa_tagstruct_put_cvolume(reply
, &volume
);
587 pa_tagstruct_putu32(reply
, PA_COMMAND_CREATE_RECORD_STREAM
);
588 pa_tagstruct_putu32(reply
, tag
= u
->ctag
++);
589 pa_tagstruct_puts(reply
, name
);
590 pa_tagstruct_put_sample_spec(reply
, &u
->source
->sample_spec
);
591 pa_tagstruct_put_channel_map(reply
, &u
->source
->channel_map
);
592 pa_tagstruct_putu32(reply
, PA_INVALID_INDEX
);
593 pa_tagstruct_puts(reply
, u
->source_name
);
594 pa_tagstruct_putu32(reply
, DEFAULT_MAXLENGTH
);
595 pa_tagstruct_put_boolean(reply
, 0);
596 pa_tagstruct_putu32(reply
, DEFAULT_FRAGSIZE
);
599 pa_pstream_send_tagstruct(u
->pstream
, reply
);
600 pa_pdispatch_register_reply(u
->pdispatch
, tag
, DEFAULT_TIMEOUT
, create_stream_callback
, u
, NULL
);
603 static void pstream_die_callback(pa_pstream
*p
, void *userdata
) {
604 struct userdata
*u
= userdata
;
607 pa_log(__FILE__
": stream died.");
612 static void pstream_packet_callback(pa_pstream
*p
, pa_packet
*packet
, const void*creds
, void *userdata
) {
613 struct userdata
*u
= userdata
;
614 assert(p
&& packet
&& u
);
616 if (pa_pdispatch_run(u
->pdispatch
, packet
, creds
, u
) < 0) {
617 pa_log(__FILE__
": invalid packet");
623 static void pstream_memblock_callback(pa_pstream
*p
, uint32_t channel
, PA_GCC_UNUSED
int64_t offset
, PA_GCC_UNUSED pa_seek_mode_t seek
, const pa_memchunk
*chunk
, void *userdata
) {
624 struct userdata
*u
= userdata
;
625 assert(p
&& chunk
&& u
);
627 if (channel
!= u
->channel
) {
628 pa_log(__FILE__
": recieved memory block on bad channel.");
633 pa_source_post(u
->source
, chunk
);
637 static void on_connection(pa_socket_client
*sc
, pa_iochannel
*io
, void *userdata
) {
638 struct userdata
*u
= userdata
;
641 assert(sc
&& u
&& u
->client
== sc
);
643 pa_socket_client_unref(u
->client
);
647 pa_log(__FILE__
": connection failed.");
648 pa_module_unload_request(u
->module
);
652 u
->pstream
= pa_pstream_new(u
->core
->mainloop
, io
, u
->core
->memblock_stat
);
653 u
->pdispatch
= pa_pdispatch_new(u
->core
->mainloop
, command_table
, PA_COMMAND_MAX
);
655 pa_pstream_set_die_callback(u
->pstream
, pstream_die_callback
, u
);
656 pa_pstream_set_recieve_packet_callback(u
->pstream
, pstream_packet_callback
, u
);
658 pa_pstream_set_recieve_memblock_callback(u
->pstream
, pstream_memblock_callback
, u
);
661 t
= pa_tagstruct_new(NULL
, 0);
662 pa_tagstruct_putu32(t
, PA_COMMAND_AUTH
);
663 pa_tagstruct_putu32(t
, tag
= u
->ctag
++);
664 pa_tagstruct_putu32(t
, PA_PROTOCOL_VERSION
);
665 pa_tagstruct_put_arbitrary(t
, u
->auth_cookie
, sizeof(u
->auth_cookie
));
666 pa_pstream_send_tagstruct(u
->pstream
, t
);
667 pa_pdispatch_register_reply(u
->pdispatch
, tag
, DEFAULT_TIMEOUT
, setup_complete_callback
, u
, NULL
);
672 static void sink_notify(pa_sink
*sink
) {
674 assert(sink
&& sink
->userdata
);
680 static pa_usec_t
sink_get_latency(pa_sink
*sink
) {
684 assert(sink
&& sink
->userdata
);
689 if (l
> u
->requested_bytes
) {
690 l
-= u
->requested_bytes
;
691 usec
+= pa_bytes_to_usec(l
, &u
->sink
->sample_spec
);
694 usec
+= u
->host_latency
;
699 static int sink_get_hw_volume(pa_sink
*sink
) {
701 assert(sink
&& sink
->userdata
);
707 static int sink_set_hw_volume(pa_sink
*sink
) {
711 assert(sink
&& sink
->userdata
);
714 t
= pa_tagstruct_new(NULL
, 0);
715 pa_tagstruct_putu32(t
, PA_COMMAND_SET_SINK_VOLUME
);
716 pa_tagstruct_putu32(t
, tag
= u
->ctag
++);
718 pa_tagstruct_putu32(t
, PA_INVALID_INDEX
);
719 pa_tagstruct_puts(t
, u
->sink_name
);
720 pa_tagstruct_put_cvolume(t
, &sink
->hw_volume
);
721 pa_pstream_send_tagstruct(u
->pstream
, t
);
726 static int sink_get_hw_mute(pa_sink
*sink
) {
728 assert(sink
&& sink
->userdata
);
734 static int sink_set_hw_mute(pa_sink
*sink
) {
738 assert(sink
&& sink
->userdata
);
741 t
= pa_tagstruct_new(NULL
, 0);
742 pa_tagstruct_putu32(t
, PA_COMMAND_SET_SINK_MUTE
);
743 pa_tagstruct_putu32(t
, tag
= u
->ctag
++);
745 pa_tagstruct_putu32(t
, PA_INVALID_INDEX
);
746 pa_tagstruct_puts(t
, u
->sink_name
);
747 pa_tagstruct_put_boolean(t
, !!sink
->hw_muted
);
748 pa_pstream_send_tagstruct(u
->pstream
, t
);
753 static pa_usec_t
source_get_latency(pa_source
*source
) {
755 assert(source
&& source
->userdata
);
756 u
= source
->userdata
;
758 return u
->host_latency
;
761 static int source_get_hw_volume(pa_source
*source
) {
763 assert(source
&& source
->userdata
);
764 u
= source
->userdata
;
769 static int source_set_hw_volume(pa_source
*source
) {
773 assert(source
&& source
->userdata
);
774 u
= source
->userdata
;
776 t
= pa_tagstruct_new(NULL
, 0);
777 pa_tagstruct_putu32(t
, PA_COMMAND_SET_SOURCE_VOLUME
);
778 pa_tagstruct_putu32(t
, tag
= u
->ctag
++);
780 pa_tagstruct_putu32(t
, PA_INVALID_INDEX
);
781 pa_tagstruct_puts(t
, u
->source_name
);
782 pa_tagstruct_put_cvolume(t
, &source
->hw_volume
);
783 pa_pstream_send_tagstruct(u
->pstream
, t
);
788 static int source_get_hw_mute(pa_source
*source
) {
790 assert(source
&& source
->userdata
);
791 u
= source
->userdata
;
796 static int source_set_hw_mute(pa_source
*source
) {
800 assert(source
&& source
->userdata
);
801 u
= source
->userdata
;
803 t
= pa_tagstruct_new(NULL
, 0);
804 pa_tagstruct_putu32(t
, PA_COMMAND_SET_SOURCE_MUTE
);
805 pa_tagstruct_putu32(t
, tag
= u
->ctag
++);
807 pa_tagstruct_putu32(t
, PA_INVALID_INDEX
);
808 pa_tagstruct_puts(t
, u
->source_name
);
809 pa_tagstruct_put_boolean(t
, !!source
->hw_muted
);
810 pa_pstream_send_tagstruct(u
->pstream
, t
);
816 static void timeout_callback(pa_mainloop_api
*m
, pa_time_event
*e
, PA_GCC_UNUSED
const struct timeval
*tv
, void *userdata
) {
817 struct userdata
*u
= userdata
;
823 pa_gettimeofday(&ntv
);
824 ntv
.tv_sec
+= LATENCY_INTERVAL
;
825 m
->time_restart(e
, &ntv
);
828 static int load_key(struct userdata
*u
, const char*fn
) {
831 u
->auth_cookie_in_property
= 0;
833 if (!fn
&& pa_authkey_prop_get(u
->core
, PA_NATIVE_COOKIE_PROPERTY_NAME
, u
->auth_cookie
, sizeof(u
->auth_cookie
)) >= 0) {
834 pa_log_debug(__FILE__
": using already loaded auth cookie.");
835 pa_authkey_prop_ref(u
->core
, PA_NATIVE_COOKIE_PROPERTY_NAME
);
836 u
->auth_cookie_in_property
= 1;
841 fn
= PA_NATIVE_COOKIE_FILE
;
843 if (pa_authkey_load_auto(fn
, u
->auth_cookie
, sizeof(u
->auth_cookie
)) < 0)
846 pa_log_debug(__FILE__
": loading cookie from disk.");
848 if (pa_authkey_prop_put(u
->core
, PA_NATIVE_COOKIE_PROPERTY_NAME
, u
->auth_cookie
, sizeof(u
->auth_cookie
)) >= 0)
849 u
->auth_cookie_in_property
= 1;
854 int pa__init(pa_core
*c
, pa_module
*m
) {
855 pa_modargs
*ma
= NULL
;
856 struct userdata
*u
= NULL
;
862 if (!(ma
= pa_modargs_new(m
->argument
, valid_modargs
))) {
863 pa_log(__FILE__
": failed to parse module arguments");
867 u
= pa_xmalloc(sizeof(struct userdata
));
874 u
->server_name
= NULL
;
876 u
->sink_name
= pa_xstrdup(pa_modargs_get_value(ma
, "sink", NULL
));;
878 u
->requested_bytes
= 0;
880 u
->source_name
= pa_xstrdup(pa_modargs_get_value(ma
, "source", NULL
));;
884 u
->device_index
= u
->channel
= PA_INVALID_INDEX
;
886 u
->auth_cookie_in_property
= 0;
887 u
->time_event
= NULL
;
889 if (load_key(u
, pa_modargs_get_value(ma
, "cookie", NULL
)) < 0)
892 if (!(u
->server_name
= pa_xstrdup(pa_modargs_get_value(ma
, "server", NULL
)))) {
893 pa_log(__FILE__
": no server specified.");
897 ss
= c
->default_sample_spec
;
898 if (pa_modargs_get_sample_spec_and_channel_map(ma
, &ss
, &map
, PA_CHANNEL_MAP_DEFAULT
) < 0) {
899 pa_log(__FILE__
": invalid sample format specification");
903 if (!(u
->client
= pa_socket_client_new_string(c
->mainloop
, u
->server_name
, PA_NATIVE_DEFAULT_PORT
))) {
904 pa_log(__FILE__
": failed to connect to server '%s'", u
->server_name
);
911 pa_socket_client_set_callback(u
->client
, on_connection
, u
);
914 if (!(u
->sink
= pa_sink_new(c
, __FILE__
, pa_modargs_get_value(ma
, "sink_name", DEFAULT_SINK_NAME
), 0, &ss
, &map
))) {
915 pa_log(__FILE__
": failed to create sink.");
919 u
->sink
->notify
= sink_notify
;
920 u
->sink
->get_latency
= sink_get_latency
;
921 u
->sink
->get_hw_volume
= sink_get_hw_volume
;
922 u
->sink
->set_hw_volume
= sink_set_hw_volume
;
923 u
->sink
->get_hw_mute
= sink_get_hw_mute
;
924 u
->sink
->set_hw_mute
= sink_set_hw_mute
;
925 u
->sink
->userdata
= u
;
926 u
->sink
->description
= pa_sprintf_malloc("Tunnel to '%s%s%s'", u
->sink_name
? u
->sink_name
: "", u
->sink_name
? "@" : "", u
->server_name
);
928 pa_sink_set_owner(u
->sink
, m
);
930 if (!(u
->source
= pa_source_new(c
, __FILE__
, pa_modargs_get_value(ma
, "source_name", DEFAULT_SOURCE_NAME
), 0, &ss
, &map
))) {
931 pa_log(__FILE__
": failed to create source.");
935 u
->source
->get_latency
= source_get_latency
;
936 u
->source
->get_hw_volume
= source_get_hw_volume
;
937 u
->source
->set_hw_volume
= source_set_hw_volume
;
938 u
->source
->get_hw_mute
= source_get_hw_mute
;
939 u
->source
->set_hw_mute
= source_set_hw_mute
;
940 u
->source
->userdata
= u
;
941 u
->source
->description
= pa_sprintf_malloc("Tunnel to '%s%s%s'", u
->source_name
? u
->source_name
: "", u
->source_name
? "@" : "", u
->server_name
);
943 pa_source_set_owner(u
->source
, m
);
946 pa_gettimeofday(&ntv
);
947 ntv
.tv_sec
+= LATENCY_INTERVAL
;
948 u
->time_event
= c
->mainloop
->time_new(c
->mainloop
, &ntv
, timeout_callback
, u
);
962 void pa__done(pa_core
*c
, pa_module
*m
) {
966 if (!(u
= m
->userdata
))
971 if (u
->auth_cookie_in_property
)
972 pa_authkey_prop_unref(c
, PA_NATIVE_COOKIE_PROPERTY_NAME
);
975 pa_xfree(u
->sink_name
);
977 pa_xfree(u
->source_name
);
979 pa_xfree(u
->server_name
);