-/* $Id: module-esound-sink.c 2043 2007-11-09 18:25:40Z lennart $ */
-
/***
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
PA_MODULE_LOAD_ONCE(FALSE);
PA_MODULE_USAGE(
"sink_name=<name for the sink> "
- "server=<address> cookie=<filename> "
+ "server=<address> "
"format=<sample format> "
"channels=<number of channels> "
"rate=<sample rate>");
pa_usec_t latency;
+ pa_volume_t volume;
+ pa_bool_t muted;
+
/*esd_format_t format;*/
int32_t rate;
};
enum {
- SINK_MESSAGE_PASS_SOCKET = PA_SINK_MESSAGE_MAX
+ SINK_MESSAGE_PASS_SOCKET = PA_SINK_MESSAGE_MAX,
+ SINK_MESSAGE_RIP_SOCKET
};
+static void on_connection(PA_GCC_UNUSED int fd, void*userdata) {
+ struct userdata *u = userdata;
+ pa_assert(u);
+
+ pa_assert(u->fd < 0);
+ u->fd = fd;
+
+ /* Set the initial volume */
+ pa_raop_client_set_volume(u->raop, u->volume);
+
+ 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 ((pa_sink_state_t) PA_PTR_TO_UINT(data)) {
case PA_SINK_SUSPENDED:
- pa_assert(PA_SINK_OPENED(u->sink->thread_info.state));
+ 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)
+ if (u->sink->thread_info.state == PA_SINK_SUSPENDED) {
pa_smoother_resume(u->smoother, pa_rtclock_usec());
+ /* 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:
;
}
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 = pollfd->revents = 0;
+ 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_get_volume_cb(pa_sink *s) {
+ struct userdata *u = s->userdata;
+ int i;
+
+ pa_assert(u);
+
+ for (i = 0; i < s->sample_spec.channels; i++)
+ s->virtual_volume.values[i] = u->volume;
+}
+
+static void sink_set_volume_cb(pa_sink *s) {
+ struct userdata *u = s->userdata;
+ int rv;
+
+ pa_assert(u);
+
+ /* If we're muted, we fake it */
+ if (u->muted)
+ return;
+
+ pa_assert(s->sample_spec.channels > 0);
+
+ /* Avoid pointless volume sets */
+ if (u->volume == s->virtual_volume.values[0])
+ return;
+
+ rv = pa_raop_client_set_volume(u->raop, s->virtual_volume.values[0]);
+ if (0 == rv)
+ u->volume = s->virtual_volume.values[0];
+}
+
+static void sink_get_mute_cb(pa_sink *s) {
+ struct userdata *u = s->userdata;
+
+ pa_assert(u);
+
+ s->muted = u->muted;
+}
+
+static void sink_set_mute_cb(pa_sink *s) {
+ struct userdata *u = s->userdata;
+
+ pa_assert(u);
+
+ pa_raop_client_set_volume(u->raop, (s->muted ? PA_VOLUME_MUTED : u->volume));
+ u->muted = s->muted;
+}
+
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_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_OPENED(u->sink->thread_info.state) && pollfd->revents) {
+ 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;
- void *p;
-
- if (u->raw_memchunk.length <= 0) {
- /* Grab unencoded data */
- pa_sink_render(u->sink, u->block_size, &u->raw_memchunk);
- }
- pa_assert(u->raw_memchunk.length > 0);
if (u->encoded_memchunk.length <= 0) {
- /* Encode it */
- size_t rl = u->raw_memchunk.length;
- u->encoding_overhead += u->next_encoding_overhead;
- u->encoded_memchunk = pa_raop_client_encode_sample(u->raop, u->core->mempool, &u->raw_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);
+ 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);
pollfd->revents = 0;
- if (u->encoded_memchunk.length > 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;
+ }
}
}
* fully filled up. This is the best time to estimate
* the playback position of the server */
- n = u->offset;
+ n = u->offset - u->encoding_overhead;
#ifdef SIOCOUTQ
{
int l;
if (ioctl(u->fd, SIOCOUTQ, &l) >= 0 && l > 0)
- n -= l;
+ n -= (l / u->encoding_ratio);
}
#endif
}
/* Hmm, nothing to do. Let's sleep */
- pollfd->events = PA_SINK_OPENED(u->sink->thread_info.state) ? POLLOUT : 0;
+ pollfd->events = POLLOUT; /*PA_SINK_IS_OPENED(u->sink->thread_info.state) ? POLLOUT : 0;*/
}
if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
if (pollfd->revents & ~POLLOUT) {
- pa_log("FIFO shutdown.");
- goto fail;
+ 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;
}
}
}
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");
}
-static void on_connection(PA_GCC_UNUSED int fd, void*userdata) {
- struct userdata *u = userdata;
- pa_assert(u);
-
- pa_assert(u->fd < 0);
- u->fd = fd;
-
- 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);
-}
-
int pa__init(pa_module*m) {
struct userdata *u = NULL;
- const char *p;
pa_sample_spec ss;
pa_modargs *ma = NULL;
- char *t;
+ const char *server;
+ pa_sink_new_data data;
pa_assert(m);
u->module = m;
m->userdata = u;
u->fd = -1;
- u->smoother = pa_smoother_new(PA_USEC_PER_SEC, PA_USEC_PER_SEC*2, TRUE);
+ u->smoother = pa_smoother_new(PA_USEC_PER_SEC, PA_USEC_PER_SEC*2, TRUE, 10);
pa_memchunk_reset(&u->raw_memchunk);
pa_memchunk_reset(&u->encoded_memchunk);
u->offset = 0;
u->next_encoding_overhead = 0;
u->encoding_ratio = 1.0;
- pa_thread_mq_init(&u->thread_mq, m->core->mainloop);
+ u->volume = roundf(0.7 * PA_VOLUME_NORM);
+ u->muted = FALSE;
+
u->rtpoll = pa_rtpoll_new();
- pa_rtpoll_item_new_asyncmsgq(u->rtpoll, PA_RTPOLL_EARLY, u->thread_mq.inq);
+ pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);
u->rtpoll_item = NULL;
/*u->format =
/*u->state = STATE_AUTH;*/
u->latency = 0;
- if (!(u->sink = pa_sink_new(m->core, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss, NULL))) {
+ 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_setf(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Airtunes sink '%s'", server);
+
+ 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->flags = PA_SINK_LATENCY|PA_SINK_NETWORK;
+ u->sink->get_volume = sink_get_volume_cb;
+ u->sink->set_volume = sink_set_volume_cb;
+ u->sink->get_mute = sink_get_mute_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_module(u->sink, m);
pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
pa_sink_set_rtpoll(u->sink, u->rtpoll);
- if (!(p = pa_modargs_get_value(ma, "server", NULL))) {
- pa_log("No server argument given.");
- goto fail;
- }
-
- if (!(u->raop = pa_raop_client_new(u->core->mainloop, p))) {
+ 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_sink_set_description(u->sink, t = pa_sprintf_malloc("Airtunes sink '%s'", p));
- pa_xfree(t);
-
+ 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.");
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->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);