uint32_t index;
struct pa_source_output *source_output;
struct pa_memblockq *memblockq;
+ size_t fragment_size;
};
struct playback_stream {
struct pa_pstream *pstream;
struct pa_pdispatch *pdispatch;
struct pa_idxset *record_streams, *playback_streams;
+ uint32_t rrobin_index;
};
struct pa_protocol_native {
static void request_bytes(struct playback_stream*s);
+static void source_output_kill_cb(struct pa_source_output *o);
+static void source_output_push_cb(struct pa_source_output *o, const struct pa_memchunk *chunk);
+
static void command_exit(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
static void command_create_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
static void command_delete_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
static void command_drain_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
+static void command_create_record_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
+static void command_delete_record_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
static void command_auth(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
static void command_set_name(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
static void command_lookup(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
[PA_COMMAND_CREATE_PLAYBACK_STREAM] = { command_create_playback_stream },
[PA_COMMAND_DELETE_PLAYBACK_STREAM] = { command_delete_playback_stream },
[PA_COMMAND_DRAIN_PLAYBACK_STREAM] = { command_drain_playback_stream },
- [PA_COMMAND_CREATE_RECORD_STREAM] = { NULL },
- [PA_COMMAND_DELETE_RECORD_STREAM] = { NULL },
+ [PA_COMMAND_CREATE_RECORD_STREAM] = { command_create_record_stream },
+ [PA_COMMAND_DELETE_RECORD_STREAM] = { command_delete_record_stream },
[PA_COMMAND_AUTH] = { command_auth },
[PA_COMMAND_REQUEST] = { NULL },
[PA_COMMAND_EXIT] = { command_exit },
/* structure management */
+static struct record_stream* record_stream_new(struct connection *c, struct pa_source *source, struct pa_sample_spec *ss, const char *name, size_t maxlength, size_t fragment_size) {
+ struct record_stream *s;
+ struct pa_source_output *source_output;
+ size_t base;
+ assert(c && source && ss && name && maxlength);
+
+ if (!(source_output = pa_source_output_new(source, name, ss)))
+ return NULL;
+
+ s = malloc(sizeof(struct record_stream));
+ assert(s);
+ s->connection = c;
+ s->source_output = source_output;
+ s->source_output->push = source_output_push_cb;
+ s->source_output->kill = source_output_kill_cb;
+ s->source_output->userdata = s;
+
+ s->memblockq = pa_memblockq_new(maxlength, 0, base = pa_sample_size(ss), 0, 0);
+ assert(s->memblockq);
+
+ s->fragment_size = (fragment_size/base)*base;
+ if (!s->fragment_size)
+ s->fragment_size = base;
+
+ pa_idxset_put(c->record_streams, s, &s->index);
+ return s;
+}
+
static void record_stream_free(struct record_stream* r) {
assert(r && r->connection);
size_t prebuf,
size_t minreq) {
struct playback_stream *s;
+ struct pa_sink_input *sink_input;
assert(c && sink && ss && name && maxlength);
+ if (!(sink_input = pa_sink_input_new(sink, name, ss)))
+ return NULL;
+
s = malloc(sizeof(struct playback_stream));
assert (s);
s->connection = c;
+ s->sink_input = sink_input;
- s->sink_input = pa_sink_input_new(sink, name, ss);
- assert(s->sink_input);
s->sink_input->peek = sink_input_peek_cb;
s->sink_input->drop = sink_input_drop_cb;
s->sink_input->kill = sink_input_kill_cb;
/*fprintf(stderr, "Requesting %u bytes\n", l);*/
}
+static void send_memblock(struct connection *c) {
+ uint32_t start;
+ struct record_stream *r;
+
+ start = PA_IDXSET_INVALID;
+ for (;;) {
+ struct pa_memchunk chunk;
+
+ if (!(r = pa_idxset_rrobin(c->record_streams, &c->rrobin_index)))
+ return;
+
+ if (start == PA_IDXSET_INVALID)
+ start = c->rrobin_index;
+ else if (start == c->rrobin_index)
+ return;
+
+ if (pa_memblockq_peek(r->memblockq, &chunk) >= 0) {
+ if (chunk.length > r->fragment_size)
+ chunk.length = r->fragment_size;
+
+ pa_pstream_send_memblock(c->pstream, r->index, 0, &chunk);
+ pa_memblockq_drop(r->memblockq, chunk.length);
+ pa_memblock_unref(chunk.memblock);
+
+ return;
+ }
+ }
+}
+
/*** sinkinput callbacks ***/
static int sink_input_peek_cb(struct pa_sink_input *i, struct pa_memchunk *chunk) {
}
static void sink_input_kill_cb(struct pa_sink_input *i) {
- struct playback_stream *s;
assert(i && i->userdata);
- s = i->userdata;
-
- playback_stream_free(s);
+ playback_stream_free((struct playback_stream *) i->userdata);
}
static uint32_t sink_input_get_latency_cb(struct pa_sink_input *i) {
return pa_samples_usec(pa_memblockq_get_length(s->memblockq), &s->sink_input->sample_spec);
}
+/*** source_output callbacks ***/
+
+static void source_output_push_cb(struct pa_source_output *o, const struct pa_memchunk *chunk) {
+ struct record_stream *s;
+ assert(o && o->userdata && chunk);
+ s = o->userdata;
+
+ pa_memblockq_push(s->memblockq, chunk, 0);
+ if (!pa_pstream_is_pending(s->connection->pstream))
+ send_memblock(s->connection);
+}
+
+static void source_output_kill_cb(struct pa_source_output *o) {
+ assert(o && o->userdata);
+ record_stream_free((struct record_stream *) o->userdata);
+}
+
/*** pdispatch callbacks ***/
static void protocol_error(struct connection *c) {
return;
}
+ playback_stream_free(s);
+ pa_pstream_send_simple_ack(c->pstream, tag);
+}
+
+static void command_create_record_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
+ struct connection *c = userdata;
+ struct record_stream *s;
+ size_t maxlength, fragment_size;
+ uint32_t source_index;
+ const char *name;
+ struct pa_sample_spec ss;
+ struct pa_tagstruct *reply;
+ struct pa_source *source;
+ assert(c && t && c->protocol && c->protocol->core);
+
+ if (pa_tagstruct_gets(t, &name) < 0 ||
+ pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
+ pa_tagstruct_getu32(t, &source_index) < 0 ||
+ pa_tagstruct_getu32(t, &maxlength) < 0 ||
+ pa_tagstruct_getu32(t, &fragment_size) < 0 ||
+ !pa_tagstruct_eof(t)) {
+ protocol_error(c);
+ return;
+ }
+
+ if (!c->authorized) {
+ pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
+ return;
+ }
+
+ if (source_index == (uint32_t) -1)
+ source = pa_source_get_default(c->protocol->core);
+ else
+ source = pa_idxset_get_by_index(c->protocol->core->sources, source_index);
+
+ if (!source) {
+ pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
+ return;
+ }
+
+ if (!(s = record_stream_new(c, source, &ss, name, maxlength, fragment_size))) {
+ pa_pstream_send_error(c->pstream, tag, PA_ERROR_INVALID);
+ return;
+ }
+
+ reply = pa_tagstruct_new(NULL, 0);
+ assert(reply);
+ pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
+ pa_tagstruct_putu32(reply, tag);
+ pa_tagstruct_putu32(reply, s->index);
+ assert(s->source_output);
+ pa_tagstruct_putu32(reply, s->source_output->index);
+ pa_pstream_send_tagstruct(c->pstream, reply);
+}
+
+static void command_delete_record_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
+ struct connection *c = userdata;
+ uint32_t channel;
+ struct record_stream *s;
+ assert(c && t);
+
+ if (pa_tagstruct_getu32(t, &channel) < 0 ||
+ !pa_tagstruct_eof(t)) {
+ protocol_error(c);
+ return;
+ }
+
+ if (!c->authorized) {
+ pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
+ return;
+ }
+
+ if (!(s = pa_idxset_get_by_index(c->record_streams, channel))) {
+ pa_pstream_send_error(c->pstream, tag, PA_ERROR_EXIST);
+ return;
+ }
+
+ record_stream_free(s);
pa_pstream_send_simple_ack(c->pstream, tag);
}
/*** pstream callbacks ***/
-static void packet_callback(struct pa_pstream *p, struct pa_packet *packet, void *userdata) {
+static void pstream_packet_callback(struct pa_pstream *p, struct pa_packet *packet, void *userdata) {
struct connection *c = userdata;
assert(p && packet && packet->data && c);
}
}
-static void memblock_callback(struct pa_pstream *p, uint32_t channel, int32_t delta, struct pa_memchunk *chunk, void *userdata) {
+static void pstream_memblock_callback(struct pa_pstream *p, uint32_t channel, int32_t delta, const struct pa_memchunk *chunk, void *userdata) {
struct connection *c = userdata;
struct playback_stream *stream;
assert(p && chunk && userdata);
/*fprintf(stderr, "Recieved %u bytes.\n", chunk->length);*/
}
-static void die_callback(struct pa_pstream *p, void *userdata) {
+static void pstream_die_callback(struct pa_pstream *p, void *userdata) {
struct connection *c = userdata;
assert(p && c);
connection_free(c);
fprintf(stderr, "protocol-native: connection died.\n");
}
+
+static void pstream_drain_callback(struct pa_pstream *p, void *userdata) {
+ struct connection *c = userdata;
+ assert(p && c);
+
+ send_memblock(c);
+}
+
/*** client callbacks ***/
static void client_kill_cb(struct pa_client *c) {
c->pstream = pa_pstream_new(p->core->mainloop, io);
assert(c->pstream);
- pa_pstream_set_recieve_packet_callback(c->pstream, packet_callback, c);
- pa_pstream_set_recieve_memblock_callback(c->pstream, memblock_callback, c);
- pa_pstream_set_die_callback(c->pstream, die_callback, c);
+ pa_pstream_set_recieve_packet_callback(c->pstream, pstream_packet_callback, c);
+ pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c);
+ pa_pstream_set_die_callback(c->pstream, pstream_die_callback, c);
+ pa_pstream_set_drain_callback(c->pstream, pstream_drain_callback, c);
c->pdispatch = pa_pdispatch_new(p->core->mainloop, command_table, PA_COMMAND_MAX);
assert(c->pdispatch);
c->playback_streams = pa_idxset_new(NULL, NULL);
assert(c->record_streams && c->playback_streams);
+ c->rrobin_index = PA_IDXSET_INVALID;
+
pa_idxset_put(p->connections, c, NULL);
}