From c65ebeec1e3eafef453ff9d936af4d314034c5c3 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Wed, 17 Jun 2009 15:09:28 +0200 Subject: raop: move all raop files to subdir --- src/modules/raop/module-raop-discover.c | 397 ++++++++++++++++++ src/modules/raop/module-raop-sink.c | 697 ++++++++++++++++++++++++++++++++ 2 files changed, 1094 insertions(+) create mode 100644 src/modules/raop/module-raop-discover.c create mode 100644 src/modules/raop/module-raop-sink.c (limited to 'src/modules/raop') diff --git a/src/modules/raop/module-raop-discover.c b/src/modules/raop/module-raop-discover.c new file mode 100644 index 00000000..eaeb77fc --- /dev/null +++ b/src/modules/raop/module-raop-discover.c @@ -0,0 +1,397 @@ +/*** + 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 +#endif + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#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); +} diff --git a/src/modules/raop/module-raop-sink.c b/src/modules/raop/module-raop-sink.c new file mode 100644 index 00000000..54de42c2 --- /dev/null +++ b/src/modules/raop/module-raop-sink.c @@ -0,0 +1,697 @@ +/*** + 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 +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef HAVE_LINUX_SOCKIOS_H +#include +#endif + +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#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= " + "sink_properties= " + "server=
" + "format= " + "rate= " + "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); +} -- cgit