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-rw-r--r--polyp/module-combine.c393
1 files changed, 0 insertions, 393 deletions
diff --git a/polyp/module-combine.c b/polyp/module-combine.c
deleted file mode 100644
index 0c21c2f5..00000000
--- a/polyp/module-combine.c
+++ /dev/null
@@ -1,393 +0,0 @@
-/* $Id$ */
-
-/***
- This file is part of polypaudio.
-
- polypaudio 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 of the License,
- or (at your option) any later version.
-
- polypaudio 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 polypaudio; 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 <assert.h>
-#include <stdio.h>
-
-#include "module.h"
-#include "llist.h"
-#include "sink.h"
-#include "sink-input.h"
-#include "memblockq.h"
-#include "log.h"
-#include "util.h"
-#include "xmalloc.h"
-#include "modargs.h"
-#include "namereg.h"
-#include "module-combine-symdef.h"
-
-PA_MODULE_AUTHOR("Lennart Poettering")
-PA_MODULE_DESCRIPTION("Combine multiple sinks to one")
-PA_MODULE_VERSION(PACKAGE_VERSION)
-PA_MODULE_USAGE("sink_name=<name for the sink> master=<master sink> slaves=<slave sinks> adjust_time=<seconds> resample_method=<method>")
-
-#define DEFAULT_SINK_NAME "combined"
-#define MEMBLOCKQ_MAXLENGTH (1024*170)
-#define RENDER_SIZE (1024*10)
-
-#define DEFAULT_ADJUST_TIME 20
-
-static const char* const valid_modargs[] = {
- "sink_name",
- "master",
- "slaves",
- "adjust_time",
- "resample_method",
- NULL
-};
-
-struct output {
- struct userdata *userdata;
- pa_sink_input *sink_input;
- size_t counter;
- pa_memblockq *memblockq;
- pa_usec_t total_latency;
- PA_LLIST_FIELDS(struct output);
-};
-
-struct userdata {
- pa_module *module;
- pa_core *core;
- pa_sink *sink;
- unsigned n_outputs;
- struct output *master;
- pa_time_event *time_event;
- uint32_t adjust_time;
-
- PA_LLIST_HEAD(struct output, outputs);
-};
-
-static void output_free(struct output *o);
-static void clear_up(struct userdata *u);
-
-static void update_usage(struct userdata *u) {
- pa_module_set_used(u->module,
- (u->sink ? pa_idxset_size(u->sink->inputs) : 0) +
- (u->sink ? pa_idxset_size(u->sink->monitor_source->outputs) : 0));
-}
-
-
-static void adjust_rates(struct userdata *u) {
- struct output *o;
- pa_usec_t max_sink_latency = 0, min_total_latency = (pa_usec_t) -1, target_latency;
- uint32_t base_rate;
- assert(u && u->sink);
-
- for (o = u->outputs; o; o = o->next) {
- uint32_t sink_latency = o->sink_input->sink ? pa_sink_get_latency(o->sink_input->sink) : 0;
-
- o->total_latency = sink_latency + pa_sink_input_get_latency(o->sink_input);
-
- if (sink_latency > max_sink_latency)
- max_sink_latency = sink_latency;
-
- if (o->total_latency < min_total_latency)
- min_total_latency = o->total_latency;
- }
-
- assert(min_total_latency != (pa_usec_t) -1);
-
- target_latency = max_sink_latency > min_total_latency ? max_sink_latency : min_total_latency;
-
- pa_log_info(__FILE__": [%s] target latency is %0.0f usec.\n", u->sink->name, (float) target_latency);
-
- base_rate = u->sink->sample_spec.rate;
-
- for (o = u->outputs; o; o = o->next) {
- uint32_t r = base_rate;
-
- if (o->total_latency < target_latency)
- r -= (uint32_t) (((((double) target_latency - o->total_latency))/u->adjust_time)*r/ 1000000);
- else if (o->total_latency > target_latency)
- r += (uint32_t) (((((double) o->total_latency - target_latency))/u->adjust_time)*r/ 1000000);
-
- if (r < (uint32_t) (base_rate*0.9) || r > (uint32_t) (base_rate*1.1))
- pa_log_warn(__FILE__": [%s] sample rates too different, not adjusting (%u vs. %u).\n", o->sink_input->name, base_rate, r);
- else {
- pa_log_info(__FILE__": [%s] new rate is %u Hz; ratio is %0.3f; latency is %0.0f usec.\n", o->sink_input->name, r, (double) r / base_rate, (float) o->total_latency);
- pa_sink_input_set_rate(o->sink_input, r);
- }
- }
-}
-
-static void request_memblock(struct userdata *u) {
- pa_memchunk chunk;
- struct output *o;
- assert(u && u->sink);
-
- update_usage(u);
-
- if (pa_sink_render(u->sink, RENDER_SIZE, &chunk) < 0)
- return;
-
- for (o = u->outputs; o; o = o->next)
- pa_memblockq_push_align(o->memblockq, &chunk, 0);
-
- pa_memblock_unref(chunk.memblock);
-}
-
-static void time_callback(pa_mainloop_api*a, pa_time_event* e, PA_GCC_UNUSED const struct timeval *tv, void *userdata) {
- struct userdata *u = userdata;
- struct timeval n;
- assert(u && a && u->time_event == e);
-
- adjust_rates(u);
-
- pa_gettimeofday(&n);
- n.tv_sec += u->adjust_time;
- u->sink->core->mainloop->time_restart(e, &n);
-}
-
-static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
- struct output *o = i->userdata;
- assert(i && o && o->sink_input && chunk);
-
- if (pa_memblockq_peek(o->memblockq, chunk) >= 0)
- return 0;
-
- /* Try harder */
- request_memblock(o->userdata);
-
- return pa_memblockq_peek(o->memblockq, chunk);
-}
-
-static void sink_input_drop_cb(pa_sink_input *i, const pa_memchunk *chunk, size_t length) {
- struct output *o = i->userdata;
- assert(i && o && o->sink_input && chunk && length);
-
- pa_memblockq_drop(o->memblockq, chunk, length);
- o->counter += length;
-}
-
-static void sink_input_kill_cb(pa_sink_input *i) {
- struct output *o = i->userdata;
- assert(i && o && o->sink_input);
- pa_module_unload_request(o->userdata->module);
- clear_up(o->userdata);
-}
-
-static pa_usec_t sink_input_get_latency_cb(pa_sink_input *i) {
- struct output *o = i->userdata;
- assert(i && o && o->sink_input);
-
- return pa_bytes_to_usec(pa_memblockq_get_length(o->memblockq), &i->sample_spec);
-}
-
-static pa_usec_t sink_get_latency_cb(pa_sink *s) {
- struct userdata *u = s->userdata;
- assert(s && u && u->sink && u->master);
-
- return pa_sink_input_get_latency(u->master->sink_input);
-}
-
-static struct output *output_new(struct userdata *u, pa_sink *sink, int resample_method) {
- struct output *o = NULL;
- char t[256];
- assert(u && sink && u->sink);
-
- o = pa_xmalloc(sizeof(struct output));
- o->userdata = u;
-
- o->counter = 0;
- o->memblockq = pa_memblockq_new(MEMBLOCKQ_MAXLENGTH, MEMBLOCKQ_MAXLENGTH, pa_frame_size(&u->sink->sample_spec), 0, 0, sink->core->memblock_stat);
-
- snprintf(t, sizeof(t), "%s: output #%u", u->sink->name, u->n_outputs+1);
- if (!(o->sink_input = pa_sink_input_new(sink, __FILE__, t, &u->sink->sample_spec, &u->sink->channel_map, 1, resample_method)))
- goto fail;
-
- o->sink_input->get_latency = sink_input_get_latency_cb;
- o->sink_input->peek = sink_input_peek_cb;
- o->sink_input->drop = sink_input_drop_cb;
- o->sink_input->kill = sink_input_kill_cb;
- o->sink_input->userdata = o;
- o->sink_input->owner = u->module;
-
- PA_LLIST_PREPEND(struct output, u->outputs, o);
- u->n_outputs++;
- return o;
-
-fail:
-
- if (o) {
- if (o->sink_input) {
- pa_sink_input_disconnect(o->sink_input);
- pa_sink_input_unref(o->sink_input);
- }
-
- if (o->memblockq)
- pa_memblockq_free(o->memblockq);
-
- pa_xfree(o);
- }
-
- return NULL;
-}
-
-static void output_free(struct output *o) {
- assert(o);
- PA_LLIST_REMOVE(struct output, o->userdata->outputs, o);
- o->userdata->n_outputs--;
- pa_memblockq_free(o->memblockq);
- pa_sink_input_disconnect(o->sink_input);
- pa_sink_input_unref(o->sink_input);
- pa_xfree(o);
-}
-
-static void clear_up(struct userdata *u) {
- struct output *o;
- assert(u);
-
- if (u->time_event) {
- u->core->mainloop->time_free(u->time_event);
- u->time_event = NULL;
- }
-
- while ((o = u->outputs))
- output_free(o);
-
- u->master = NULL;
-
- if (u->sink) {
- pa_sink_disconnect(u->sink);
- pa_sink_unref(u->sink);
- u->sink = NULL;
- }
-}
-
-int pa__init(pa_core *c, pa_module*m) {
- struct userdata *u;
- pa_modargs *ma = NULL;
- const char *master_name, *slaves, *rm;
- pa_sink *master_sink;
- char *n = NULL;
- const char*split_state;
- struct timeval tv;
- int resample_method = -1;
- assert(c && m);
-
- if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
- pa_log(__FILE__": failed to parse module arguments\n");
- goto fail;
- }
-
- if ((rm = pa_modargs_get_value(ma, "resample_method", NULL))) {
- if ((resample_method = pa_parse_resample_method(rm)) < 0) {
- pa_log(__FILE__": invalid resample method '%s'\n", rm);
- goto fail;
- }
- }
-
- u = pa_xmalloc(sizeof(struct userdata));
- m->userdata = u;
- u->sink = NULL;
- u->n_outputs = 0;
- u->master = NULL;
- u->module = m;
- u->core = c;
- u->time_event = NULL;
- u->adjust_time = DEFAULT_ADJUST_TIME;
- PA_LLIST_HEAD_INIT(struct output, u->outputs);
-
- if (pa_modargs_get_value_u32(ma, "adjust_time", &u->adjust_time) < 0) {
- pa_log(__FILE__": failed to parse adjust_time value\n");
- goto fail;
- }
-
- if (!(master_name = pa_modargs_get_value(ma, "master", NULL)) || !(slaves = pa_modargs_get_value(ma, "slaves", NULL))) {
- pa_log(__FILE__": no master or slave sinks specified\n");
- goto fail;
- }
-
- if (!(master_sink = pa_namereg_get(c, master_name, PA_NAMEREG_SINK, 1))) {
- pa_log(__FILE__": invalid master sink '%s'\n", master_name);
- goto fail;
- }
-
- if (!(u->sink = pa_sink_new(c, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &master_sink->sample_spec, &master_sink->channel_map))) {
- pa_log(__FILE__": failed to create sink\n");
- goto fail;
- }
-
- pa_sink_set_owner(u->sink, m);
- u->sink->description = pa_sprintf_malloc("Combined sink");
- u->sink->get_latency = sink_get_latency_cb;
- u->sink->userdata = u;
-
- if (!(u->master = output_new(u, master_sink, resample_method))) {
- pa_log(__FILE__": failed to create master sink input on sink '%s'.\n", u->sink->name);
- goto fail;
- }
-
- split_state = NULL;
- while ((n = pa_split(slaves, ",", &split_state))) {
- pa_sink *slave_sink;
-
- if (!(slave_sink = pa_namereg_get(c, n, PA_NAMEREG_SINK, 1))) {
- pa_log(__FILE__": invalid slave sink '%s'\n", n);
- goto fail;
- }
-
- pa_xfree(n);
-
- if (!output_new(u, slave_sink, resample_method)) {
- pa_log(__FILE__": failed to create slave sink input on sink '%s'.\n", slave_sink->name);
- goto fail;
- }
- }
-
- if (u->n_outputs <= 1)
- pa_log_warn(__FILE__": WARNING: no slave sinks specified.\n");
-
- if (u->adjust_time > 0) {
- pa_gettimeofday(&tv);
- tv.tv_sec += u->adjust_time;
- u->time_event = c->mainloop->time_new(c->mainloop, &tv, time_callback, u);
- }
-
- pa_modargs_free(ma);
- return 0;
-
-fail:
- pa_xfree(n);
-
- if (ma)
- pa_modargs_free(ma);
-
- pa__done(c, m);
- return -1;
-}
-
-void pa__done(pa_core *c, pa_module*m) {
- struct userdata *u;
- assert(c && m);
-
- if (!(u = m->userdata))
- return;
-
- clear_up(u);
- pa_xfree(u);
-}
-
-