raop: move all raop files to subdir

This commit is contained in:
Lennart Poettering 2009-06-17 15:09:28 +02:00
parent 6b2ca094ae
commit c65ebeec1e
3 changed files with 4 additions and 4 deletions

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/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
Copyright 2008 Colin Guthrie
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <avahi-client/client.h>
#include <avahi-client/lookup.h>
#include <avahi-common/alternative.h>
#include <avahi-common/error.h>
#include <avahi-common/domain.h>
#include <avahi-common/malloc.h>
#include <pulse/xmalloc.h>
#include <pulse/util.h>
#include <pulsecore/sink.h>
#include <pulsecore/source.h>
#include <pulsecore/native-common.h>
#include <pulsecore/core-util.h>
#include <pulsecore/log.h>
#include <pulsecore/core-subscribe.h>
#include <pulsecore/hashmap.h>
#include <pulsecore/modargs.h>
#include <pulsecore/namereg.h>
#include <pulsecore/avahi-wrap.h>
#include "module-raop-discover-symdef.h"
PA_MODULE_AUTHOR("Colin Guthrie");
PA_MODULE_DESCRIPTION("mDNS/DNS-SD Service Discovery of RAOP devices");
PA_MODULE_VERSION(PACKAGE_VERSION);
PA_MODULE_LOAD_ONCE(TRUE);
#define SERVICE_TYPE_SINK "_raop._tcp"
static const char* const valid_modargs[] = {
NULL
};
struct tunnel {
AvahiIfIndex interface;
AvahiProtocol protocol;
char *name, *type, *domain;
uint32_t module_index;
};
struct userdata {
pa_core *core;
pa_module *module;
AvahiPoll *avahi_poll;
AvahiClient *client;
AvahiServiceBrowser *sink_browser;
pa_hashmap *tunnels;
};
static unsigned tunnel_hash(const void *p) {
const struct tunnel *t = p;
return
(unsigned) t->interface +
(unsigned) t->protocol +
pa_idxset_string_hash_func(t->name) +
pa_idxset_string_hash_func(t->type) +
pa_idxset_string_hash_func(t->domain);
}
static int tunnel_compare(const void *a, const void *b) {
const struct tunnel *ta = a, *tb = b;
int r;
if (ta->interface != tb->interface)
return 1;
if (ta->protocol != tb->protocol)
return 1;
if ((r = strcmp(ta->name, tb->name)))
return r;
if ((r = strcmp(ta->type, tb->type)))
return r;
if ((r = strcmp(ta->domain, tb->domain)))
return r;
return 0;
}
static struct tunnel *tunnel_new(
AvahiIfIndex interface, AvahiProtocol protocol,
const char *name, const char *type, const char *domain) {
struct tunnel *t;
t = pa_xnew(struct tunnel, 1);
t->interface = interface;
t->protocol = protocol;
t->name = pa_xstrdup(name);
t->type = pa_xstrdup(type);
t->domain = pa_xstrdup(domain);
t->module_index = PA_IDXSET_INVALID;
return t;
}
static void tunnel_free(struct tunnel *t) {
pa_assert(t);
pa_xfree(t->name);
pa_xfree(t->type);
pa_xfree(t->domain);
pa_xfree(t);
}
static void resolver_cb(
AvahiServiceResolver *r,
AvahiIfIndex interface, AvahiProtocol protocol,
AvahiResolverEvent event,
const char *name, const char *type, const char *domain,
const char *host_name, const AvahiAddress *a, uint16_t port,
AvahiStringList *txt,
AvahiLookupResultFlags flags,
void *userdata) {
struct userdata *u = userdata;
struct tunnel *tnl;
pa_assert(u);
tnl = tunnel_new(interface, protocol, name, type, domain);
if (event != AVAHI_RESOLVER_FOUND)
pa_log("Resolving of '%s' failed: %s", name, avahi_strerror(avahi_client_errno(u->client)));
else {
char *device = NULL, *nicename, *dname, *vname, *args;
char at[AVAHI_ADDRESS_STR_MAX];
AvahiStringList *l;
pa_module *m;
if ((nicename = strstr(name, "@"))) {
++nicename;
if (strlen(nicename) > 0) {
pa_log_debug("Found RAOP: %s", nicename);
}
}
for (l = txt; l; l = l->next) {
char *key, *value;
pa_assert_se(avahi_string_list_get_pair(l, &key, &value, NULL) == 0);
pa_log_debug("Found key: '%s' with value: '%s'", key, value);
if (strcmp(key, "device") == 0) {
pa_xfree(device);
device = value;
value = NULL;
}
avahi_free(key);
avahi_free(value);
}
if (device)
dname = pa_sprintf_malloc("raop.%s.%s", host_name, device);
else
dname = pa_sprintf_malloc("raop.%s", host_name);
if (!(vname = pa_namereg_make_valid_name(dname))) {
pa_log("Cannot construct valid device name from '%s'.", dname);
avahi_free(device);
pa_xfree(dname);
goto finish;
}
pa_xfree(dname);
/*
TODO: allow this syntax of server name in things....
args = pa_sprintf_malloc("server=[%s]:%u "
"sink_name=%s",
avahi_address_snprint(at, sizeof(at), a), port,
vname);*/
if (nicename) {
args = pa_sprintf_malloc("server=%s "
"sink_name=%s "
"description=\"%s\"",
avahi_address_snprint(at, sizeof(at), a),
vname,
nicename);
} else {
args = pa_sprintf_malloc("server=%s "
"sink_name=%s",
avahi_address_snprint(at, sizeof(at), a),
vname);
}
pa_log_debug("Loading module-raop-sink with arguments '%s'", args);
if ((m = pa_module_load(u->core, "module-raop-sink", args))) {
tnl->module_index = m->index;
pa_hashmap_put(u->tunnels, tnl, tnl);
tnl = NULL;
}
pa_xfree(vname);
pa_xfree(args);
avahi_free(device);
}
finish:
avahi_service_resolver_free(r);
if (tnl)
tunnel_free(tnl);
}
static void browser_cb(
AvahiServiceBrowser *b,
AvahiIfIndex interface, AvahiProtocol protocol,
AvahiBrowserEvent event,
const char *name, const char *type, const char *domain,
AvahiLookupResultFlags flags,
void *userdata) {
struct userdata *u = userdata;
struct tunnel *t;
pa_assert(u);
if (flags & AVAHI_LOOKUP_RESULT_LOCAL)
return;
t = tunnel_new(interface, protocol, name, type, domain);
if (event == AVAHI_BROWSER_NEW) {
if (!pa_hashmap_get(u->tunnels, t))
if (!(avahi_service_resolver_new(u->client, interface, protocol, name, type, domain, AVAHI_PROTO_UNSPEC, 0, resolver_cb, u)))
pa_log("avahi_service_resolver_new() failed: %s", avahi_strerror(avahi_client_errno(u->client)));
/* We ignore the returned resolver object here, since the we don't
* need to attach any special data to it, and we can still destroy
* it from the callback */
} else if (event == AVAHI_BROWSER_REMOVE) {
struct tunnel *t2;
if ((t2 = pa_hashmap_get(u->tunnels, t))) {
pa_module_unload_by_index(u->core, t2->module_index, TRUE);
pa_hashmap_remove(u->tunnels, t2);
tunnel_free(t2);
}
}
tunnel_free(t);
}
static void client_callback(AvahiClient *c, AvahiClientState state, void *userdata) {
struct userdata *u = userdata;
pa_assert(c);
pa_assert(u);
u->client = c;
switch (state) {
case AVAHI_CLIENT_S_REGISTERING:
case AVAHI_CLIENT_S_RUNNING:
case AVAHI_CLIENT_S_COLLISION:
if (!u->sink_browser) {
if (!(u->sink_browser = avahi_service_browser_new(
c,
AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC,
SERVICE_TYPE_SINK,
NULL,
0,
browser_cb, u))) {
pa_log("avahi_service_browser_new() failed: %s", avahi_strerror(avahi_client_errno(c)));
pa_module_unload_request(u->module, TRUE);
}
}
break;
case AVAHI_CLIENT_FAILURE:
if (avahi_client_errno(c) == AVAHI_ERR_DISCONNECTED) {
int error;
pa_log_debug("Avahi daemon disconnected.");
if (!(u->client = avahi_client_new(u->avahi_poll, AVAHI_CLIENT_NO_FAIL, client_callback, u, &error))) {
pa_log("avahi_client_new() failed: %s", avahi_strerror(error));
pa_module_unload_request(u->module, TRUE);
}
}
/* Fall through */
case AVAHI_CLIENT_CONNECTING:
if (u->sink_browser) {
avahi_service_browser_free(u->sink_browser);
u->sink_browser = NULL;
}
break;
default: ;
}
}
int pa__init(pa_module*m) {
struct userdata *u;
pa_modargs *ma = NULL;
int error;
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments.");
goto fail;
}
m->userdata = u = pa_xnew(struct userdata, 1);
u->core = m->core;
u->module = m;
u->sink_browser = NULL;
u->tunnels = pa_hashmap_new(tunnel_hash, tunnel_compare);
u->avahi_poll = pa_avahi_poll_new(m->core->mainloop);
if (!(u->client = avahi_client_new(u->avahi_poll, AVAHI_CLIENT_NO_FAIL, client_callback, u, &error))) {
pa_log("pa_avahi_client_new() failed: %s", avahi_strerror(error));
goto fail;
}
pa_modargs_free(ma);
return 0;
fail:
pa__done(m);
if (ma)
pa_modargs_free(ma);
return -1;
}
void pa__done(pa_module*m) {
struct userdata*u;
pa_assert(m);
if (!(u = m->userdata))
return;
if (u->client)
avahi_client_free(u->client);
if (u->avahi_poll)
pa_avahi_poll_free(u->avahi_poll);
if (u->tunnels) {
struct tunnel *t;
while ((t = pa_hashmap_steal_first(u->tunnels))) {
pa_module_unload_by_index(u->core, t->module_index, TRUE);
tunnel_free(t);
}
pa_hashmap_free(u->tunnels, NULL, NULL);
}
pa_xfree(u);
}

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/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
Copyright 2008 Colin Guthrie
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <sys/stat.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <limits.h>
#include <poll.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <sys/ioctl.h>
#ifdef HAVE_LINUX_SOCKIOS_H
#include <linux/sockios.h>
#endif
#include <pulse/xmalloc.h>
#include <pulse/timeval.h>
#include <pulsecore/core-error.h>
#include <pulsecore/iochannel.h>
#include <pulsecore/sink.h>
#include <pulsecore/module.h>
#include <pulsecore/core-util.h>
#include <pulsecore/modargs.h>
#include <pulsecore/log.h>
#include <pulsecore/socket-client.h>
#include <pulsecore/authkey.h>
#include <pulsecore/thread-mq.h>
#include <pulsecore/thread.h>
#include <pulsecore/time-smoother.h>
#include <pulsecore/rtclock.h>
#include <pulsecore/socket-util.h>
#include "module-raop-sink-symdef.h"
#include "rtp.h"
#include "sdp.h"
#include "sap.h"
#include "raop_client.h"
PA_MODULE_AUTHOR("Colin Guthrie");
PA_MODULE_DESCRIPTION("RAOP Sink");
PA_MODULE_VERSION(PACKAGE_VERSION);
PA_MODULE_LOAD_ONCE(FALSE);
PA_MODULE_USAGE(
"sink_name=<name for the sink> "
"sink_properties=<properties for the sink> "
"server=<address> "
"format=<sample format> "
"rate=<sample rate> "
"channels=<number of channels>");
#define DEFAULT_SINK_NAME "raop"
struct userdata {
pa_core *core;
pa_module *module;
pa_sink *sink;
pa_thread_mq thread_mq;
pa_rtpoll *rtpoll;
pa_rtpoll_item *rtpoll_item;
pa_thread *thread;
pa_memchunk raw_memchunk;
pa_memchunk encoded_memchunk;
void *write_data;
size_t write_length, write_index;
void *read_data;
size_t read_length, read_index;
pa_usec_t latency;
/*esd_format_t format;*/
int32_t rate;
pa_smoother *smoother;
int fd;
int64_t offset;
int64_t encoding_overhead;
int32_t next_encoding_overhead;
double encoding_ratio;
pa_raop_client *raop;
size_t block_size;
};
static const char* const valid_modargs[] = {
"sink_name",
"sink_properties",
"server",
"format",
"rate",
"channels",
"description", /* supported for compatibility reasons, made redundant by sink_properties= */
NULL
};
enum {
SINK_MESSAGE_PASS_SOCKET = PA_SINK_MESSAGE_MAX,
SINK_MESSAGE_RIP_SOCKET
};
/* Forward declaration */
static void sink_set_volume_cb(pa_sink *);
static void on_connection(int fd, void*userdata) {
int so_sndbuf = 0;
socklen_t sl = sizeof(int);
struct userdata *u = userdata;
pa_assert(u);
pa_assert(u->fd < 0);
u->fd = fd;
if (getsockopt(u->fd, SOL_SOCKET, SO_SNDBUF, &so_sndbuf, &sl) < 0)
pa_log_warn("getsockopt(SO_SNDBUF) failed: %s", pa_cstrerror(errno));
else {
pa_log_debug("SO_SNDBUF is %zu.", (size_t) so_sndbuf);
pa_sink_set_max_request(u->sink, PA_MAX((size_t) so_sndbuf, u->block_size));
}
/* Set the initial volume */
sink_set_volume_cb(u->sink);
pa_log_debug("Connection authenticated, handing fd to IO thread...");
pa_asyncmsgq_post(u->thread_mq.inq, PA_MSGOBJECT(u->sink), SINK_MESSAGE_PASS_SOCKET, NULL, 0, NULL, NULL);
}
static void on_close(void*userdata) {
struct userdata *u = userdata;
pa_assert(u);
pa_log_debug("Connection closed, informing IO thread...");
pa_asyncmsgq_post(u->thread_mq.inq, PA_MSGOBJECT(u->sink), SINK_MESSAGE_RIP_SOCKET, NULL, 0, NULL, NULL);
}
static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
struct userdata *u = PA_SINK(o)->userdata;
switch (code) {
case PA_SINK_MESSAGE_SET_STATE:
switch ((pa_sink_state_t) PA_PTR_TO_UINT(data)) {
case PA_SINK_SUSPENDED:
pa_assert(PA_SINK_IS_OPENED(u->sink->thread_info.state));
pa_smoother_pause(u->smoother, pa_rtclock_usec());
/* Issue a FLUSH if we are connected */
if (u->fd >= 0) {
pa_raop_flush(u->raop);
}
break;
case PA_SINK_IDLE:
case PA_SINK_RUNNING:
if (u->sink->thread_info.state == PA_SINK_SUSPENDED) {
pa_smoother_resume(u->smoother, pa_rtclock_usec(), TRUE);
/* The connection can be closed when idle, so check to
see if we need to reestablish it */
if (u->fd < 0)
pa_raop_connect(u->raop);
else
pa_raop_flush(u->raop);
}
break;
case PA_SINK_UNLINKED:
case PA_SINK_INIT:
case PA_SINK_INVALID_STATE:
;
}
break;
case PA_SINK_MESSAGE_GET_LATENCY: {
pa_usec_t w, r;
r = pa_smoother_get(u->smoother, pa_rtclock_usec());
w = pa_bytes_to_usec((u->offset - u->encoding_overhead + (u->encoded_memchunk.length / u->encoding_ratio)), &u->sink->sample_spec);
*((pa_usec_t*) data) = w > r ? w - r : 0;
return 0;
}
case SINK_MESSAGE_PASS_SOCKET: {
struct pollfd *pollfd;
pa_assert(!u->rtpoll_item);
u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
pollfd->fd = u->fd;
pollfd->events = POLLOUT;
/*pollfd->events = */pollfd->revents = 0;
if (u->sink->thread_info.state == PA_SINK_SUSPENDED) {
/* Our stream has been suspended so we just flush it.... */
pa_raop_flush(u->raop);
}
return 0;
}
case SINK_MESSAGE_RIP_SOCKET: {
pa_assert(u->fd >= 0);
pa_close(u->fd);
u->fd = -1;
if (u->sink->thread_info.state == PA_SINK_SUSPENDED) {
pa_log_debug("RTSP control connection closed, but we're suspended so let's not worry about it... we'll open it again later");
if (u->rtpoll_item)
pa_rtpoll_item_free(u->rtpoll_item);
u->rtpoll_item = NULL;
} else {
/* Quesiton: is this valid here: or should we do some sort of:
return pa_sink_process_msg(PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL);
?? */
pa_module_unload_request(u->module, TRUE);
}
return 0;
}
}
return pa_sink_process_msg(o, code, data, offset, chunk);
}
static void sink_set_volume_cb(pa_sink *s) {
struct userdata *u = s->userdata;
pa_cvolume hw;
pa_volume_t v;
char t[PA_CVOLUME_SNPRINT_MAX];
pa_assert(u);
/* If we're muted we don't need to do anything */
if (s->muted)
return;
/* Calculate the max volume of all channels.
We'll use this as our (single) volume on the APEX device and emulate
any variation in channel volumes in software */
v = pa_cvolume_max(&s->virtual_volume);
/* Create a pa_cvolume version of our single value */
pa_cvolume_set(&hw, s->sample_spec.channels, v);
/* Perform any software manipulation of the volume needed */
pa_sw_cvolume_divide(&s->soft_volume, &s->virtual_volume, &hw);
pa_log_debug("Requested volume: %s", pa_cvolume_snprint(t, sizeof(t), &s->virtual_volume));
pa_log_debug("Got hardware volume: %s", pa_cvolume_snprint(t, sizeof(t), &hw));
pa_log_debug("Calculated software volume: %s", pa_cvolume_snprint(t, sizeof(t), &s->soft_volume));
/* Any necessary software volume manipulateion is done so set
our hw volume (or v as a single value) on the device */
pa_raop_client_set_volume(u->raop, v);
}
static void sink_set_mute_cb(pa_sink *s) {
struct userdata *u = s->userdata;
pa_assert(u);
if (s->muted) {
pa_raop_client_set_volume(u->raop, PA_VOLUME_MUTED);
} else {
sink_set_volume_cb(s);
}
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
int write_type = 0;
pa_memchunk silence;
uint32_t silence_overhead = 0;
double silence_ratio = 0;
pa_assert(u);
pa_log_debug("Thread starting up");
pa_thread_mq_install(&u->thread_mq);
pa_rtpoll_install(u->rtpoll);
pa_smoother_set_time_offset(u->smoother, pa_rtclock_usec());
/* Create a chunk of memory that is our encoded silence sample. */
pa_memchunk_reset(&silence);
for (;;) {
int ret;
if (PA_SINK_IS_OPENED(u->sink->thread_info.state))
if (u->sink->thread_info.rewind_requested)
pa_sink_process_rewind(u->sink, 0);
if (u->rtpoll_item) {
struct pollfd *pollfd;
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
/* Render some data and write it to the fifo */
if (/*PA_SINK_IS_OPENED(u->sink->thread_info.state) && */pollfd->revents) {
pa_usec_t usec;
int64_t n;
void *p;
if (!silence.memblock) {
pa_memchunk silence_tmp;
pa_memchunk_reset(&silence_tmp);
silence_tmp.memblock = pa_memblock_new(u->core->mempool, 4096);
silence_tmp.length = 4096;
p = pa_memblock_acquire(silence_tmp.memblock);
memset(p, 0, 4096);
pa_memblock_release(silence_tmp.memblock);
pa_raop_client_encode_sample(u->raop, &silence_tmp, &silence);
pa_assert(0 == silence_tmp.length);
silence_overhead = silence_tmp.length - 4096;
silence_ratio = silence_tmp.length / 4096;
pa_memblock_unref(silence_tmp.memblock);
}
for (;;) {
ssize_t l;
if (u->encoded_memchunk.length <= 0) {
if (u->encoded_memchunk.memblock)
pa_memblock_unref(u->encoded_memchunk.memblock);
if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) {
size_t rl;
/* We render real data */
if (u->raw_memchunk.length <= 0) {
if (u->raw_memchunk.memblock)
pa_memblock_unref(u->raw_memchunk.memblock);
pa_memchunk_reset(&u->raw_memchunk);
/* Grab unencoded data */
pa_sink_render(u->sink, u->block_size, &u->raw_memchunk);
}
pa_assert(u->raw_memchunk.length > 0);
/* Encode it */
rl = u->raw_memchunk.length;
u->encoding_overhead += u->next_encoding_overhead;
pa_raop_client_encode_sample(u->raop, &u->raw_memchunk, &u->encoded_memchunk);
u->next_encoding_overhead = (u->encoded_memchunk.length - (rl - u->raw_memchunk.length));
u->encoding_ratio = u->encoded_memchunk.length / (rl - u->raw_memchunk.length);
} else {
/* We render some silence into our memchunk */
memcpy(&u->encoded_memchunk, &silence, sizeof(pa_memchunk));
pa_memblock_ref(silence.memblock);
/* Calculate/store some values to be used with the smoother */
u->next_encoding_overhead = silence_overhead;
u->encoding_ratio = silence_ratio;
}
}
pa_assert(u->encoded_memchunk.length > 0);
p = pa_memblock_acquire(u->encoded_memchunk.memblock);
l = pa_write(u->fd, (uint8_t*) p + u->encoded_memchunk.index, u->encoded_memchunk.length, &write_type);
pa_memblock_release(u->encoded_memchunk.memblock);
pa_assert(l != 0);
if (l < 0) {
if (errno == EINTR)
continue;
else if (errno == EAGAIN) {
/* OK, we filled all socket buffers up
* now. */
goto filled_up;
} else {
pa_log("Failed to write data to FIFO: %s", pa_cstrerror(errno));
goto fail;
}
} else {
u->offset += l;
u->encoded_memchunk.index += l;
u->encoded_memchunk.length -= l;
pollfd->revents = 0;
if (u->encoded_memchunk.length > 0) {
/* we've completely written the encoded data, so update our overhead */
u->encoding_overhead += u->next_encoding_overhead;
/* OK, we wrote less that we asked for,
* hence we can assume that the socket
* buffers are full now */
goto filled_up;
}
}
}
filled_up:
/* At this spot we know that the socket buffers are
* fully filled up. This is the best time to estimate
* the playback position of the server */
n = u->offset - u->encoding_overhead;
#ifdef SIOCOUTQ
{
int l;
if (ioctl(u->fd, SIOCOUTQ, &l) >= 0 && l > 0)
n -= (l / u->encoding_ratio);
}
#endif
usec = pa_bytes_to_usec(n, &u->sink->sample_spec);
if (usec > u->latency)
usec -= u->latency;
else
usec = 0;
pa_smoother_put(u->smoother, pa_rtclock_usec(), usec);
}
/* Hmm, nothing to do. Let's sleep */
pollfd->events = POLLOUT; /*PA_SINK_IS_OPENED(u->sink->thread_info.state) ? POLLOUT : 0;*/
}
if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
goto fail;
if (ret == 0)
goto finish;
if (u->rtpoll_item) {
struct pollfd* pollfd;
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
if (pollfd->revents & ~POLLOUT) {
if (u->sink->thread_info.state != PA_SINK_SUSPENDED) {
pa_log("FIFO shutdown.");
goto fail;
}
/* We expect this to happen on occasion if we are not sending data.
It's perfectly natural and normal and natural */
if (u->rtpoll_item)
pa_rtpoll_item_free(u->rtpoll_item);
u->rtpoll_item = NULL;
}
}
}
fail:
/* If this was no regular exit from the loop we have to continue
* processing messages until we received PA_MESSAGE_SHUTDOWN */
pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
finish:
if (silence.memblock)
pa_memblock_unref(silence.memblock);
pa_log_debug("Thread shutting down");
}
int pa__init(pa_module*m) {
struct userdata *u = NULL;
pa_sample_spec ss;
pa_modargs *ma = NULL;
const char *server, *desc;
pa_sink_new_data data;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("failed to parse module arguments");
goto fail;
}
ss = m->core->default_sample_spec;
if (pa_modargs_get_sample_spec(ma, &ss) < 0) {
pa_log("invalid sample format specification");
goto fail;
}
if ((/*ss.format != PA_SAMPLE_U8 &&*/ ss.format != PA_SAMPLE_S16NE) ||
(ss.channels > 2)) {
pa_log("sample type support is limited to mono/stereo and U8 or S16NE sample data");
goto fail;
}
u = pa_xnew0(struct userdata, 1);
u->core = m->core;
u->module = m;
m->userdata = u;
u->fd = -1;
u->smoother = pa_smoother_new(
PA_USEC_PER_SEC,
PA_USEC_PER_SEC*2,
TRUE,
TRUE,
10,
0,
FALSE);
pa_memchunk_reset(&u->raw_memchunk);
pa_memchunk_reset(&u->encoded_memchunk);
u->offset = 0;
u->encoding_overhead = 0;
u->next_encoding_overhead = 0;
u->encoding_ratio = 1.0;
u->rtpoll = pa_rtpoll_new();
pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);
u->rtpoll_item = NULL;
/*u->format =
(ss.format == PA_SAMPLE_U8 ? ESD_BITS8 : ESD_BITS16) |
(ss.channels == 2 ? ESD_STEREO : ESD_MONO);*/
u->rate = ss.rate;
u->block_size = pa_usec_to_bytes(PA_USEC_PER_SEC/20, &ss);
u->read_data = u->write_data = NULL;
u->read_index = u->write_index = u->read_length = u->write_length = 0;
/*u->state = STATE_AUTH;*/
u->latency = 0;
if (!(server = pa_modargs_get_value(ma, "server", NULL))) {
pa_log("No server argument given.");
goto fail;
}
pa_sink_new_data_init(&data);
data.driver = __FILE__;
data.module = m;
pa_sink_new_data_set_name(&data, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME));
pa_sink_new_data_set_sample_spec(&data, &ss);
pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, server);
pa_proplist_sets(data.proplist, PA_PROP_DEVICE_INTENDED_ROLES, "music");
if ((desc = pa_modargs_get_value(ma, "description", NULL)))
pa_proplist_sets(data.proplist, PA_PROP_DEVICE_DESCRIPTION, desc);
else
pa_proplist_setf(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "RAOP sink '%s'", server);
if (pa_modargs_get_proplist(ma, "sink_properties", data.proplist, PA_UPDATE_REPLACE) < 0) {
pa_log("Invalid properties");
pa_sink_new_data_done(&data);
goto fail;
}
u->sink = pa_sink_new(m->core, &data, PA_SINK_LATENCY|PA_SINK_NETWORK);
pa_sink_new_data_done(&data);
if (!u->sink) {
pa_log("Failed to create sink.");
goto fail;
}
u->sink->parent.process_msg = sink_process_msg;
u->sink->userdata = u;
u->sink->set_volume = sink_set_volume_cb;
u->sink->set_mute = sink_set_mute_cb;
u->sink->flags = PA_SINK_LATENCY|PA_SINK_NETWORK|PA_SINK_HW_VOLUME_CTRL;
pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
pa_sink_set_rtpoll(u->sink, u->rtpoll);
if (!(u->raop = pa_raop_client_new(u->core, server))) {
pa_log("Failed to connect to server.");
goto fail;
}
pa_raop_client_set_callback(u->raop, on_connection, u);
pa_raop_client_set_closed_callback(u->raop, on_close, u);
if (!(u->thread = pa_thread_new(thread_func, u))) {
pa_log("Failed to create thread.");
goto fail;
}
pa_sink_put(u->sink);
pa_modargs_free(ma);
return 0;
fail:
if (ma)
pa_modargs_free(ma);
pa__done(m);
return -1;
}
int pa__get_n_used(pa_module *m) {
struct userdata *u;
pa_assert(m);
pa_assert_se(u = m->userdata);
return pa_sink_linked_by(u->sink);
}
void pa__done(pa_module*m) {
struct userdata *u;
pa_assert(m);
if (!(u = m->userdata))
return;
if (u->sink)
pa_sink_unlink(u->sink);
if (u->thread) {
pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
pa_thread_free(u->thread);
}
pa_thread_mq_done(&u->thread_mq);
if (u->sink)
pa_sink_unref(u->sink);
if (u->rtpoll_item)
pa_rtpoll_item_free(u->rtpoll_item);
if (u->rtpoll)
pa_rtpoll_free(u->rtpoll);
if (u->raw_memchunk.memblock)
pa_memblock_unref(u->raw_memchunk.memblock);
if (u->encoded_memchunk.memblock)
pa_memblock_unref(u->encoded_memchunk.memblock);
if (u->raop)
pa_raop_client_free(u->raop);
pa_xfree(u->read_data);
pa_xfree(u->write_data);
if (u->smoother)
pa_smoother_free(u->smoother);
if (u->fd >= 0)
pa_close(u->fd);
pa_xfree(u);
}