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 of the License,
+ 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
#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 <sys/ioctl.h>
-#include <sys/poll.h>
-#include <pulse/xmalloc.h>
+#include <pulse/rtclock.h>
#include <pulse/timeval.h>
+#include <pulse/xmalloc.h>
-#include <pulsecore/core-error.h>
#include <pulsecore/source.h>
#include <pulsecore/module.h>
#include <pulsecore/core-util.h>
#include <pulsecore/thread.h>
#include <pulsecore/thread-mq.h>
#include <pulsecore/rtpoll.h>
-#include <pulsecore/rtclock.h>
#include "module-sine-source-symdef.h"
PA_MODULE_AUTHOR("Lennart Poettering");
PA_MODULE_DESCRIPTION("Sine wave generator source");
PA_MODULE_VERSION(PACKAGE_VERSION);
-PA_MODULE_LOAD_ONCE(FALSE);
+PA_MODULE_LOAD_ONCE(false);
PA_MODULE_USAGE(
- "rate=<sample rate> "
"source_name=<name for the source> "
+ "source_properties=<properties for the source> "
+ "rate=<sample rate> "
"frequency=<frequency in Hz>");
#define DEFAULT_SOURCE_NAME "sine_input"
-#define MAX_LATENCY_USEC (PA_USEC_PER_SEC * 2)
+#define BLOCK_USEC (PA_USEC_PER_SEC * 2)
struct userdata {
pa_core *core;
};
static const char* const valid_modargs[] = {
- "rate",
"source_name",
+ "source_properties",
+ "rate",
"frequency",
NULL
};
switch (code) {
- case PA_SINK_MESSAGE_SET_STATE:
+ case PA_SOURCE_MESSAGE_SET_STATE:
- if (PA_PTR_TO_UINT(data) == PA_SINK_RUNNING)
- u->timestamp = pa_rtclock_usec();
+ if (PA_PTR_TO_UINT(data) == PA_SOURCE_RUNNING)
+ u->timestamp = pa_rtclock_now();
break;
case PA_SOURCE_MESSAGE_GET_LATENCY: {
pa_usec_t now, left_to_fill;
- now = pa_rtclock_usec();
+ now = pa_rtclock_now();
left_to_fill = u->timestamp > now ? u->timestamp - now : 0ULL;
*((pa_usec_t*) data) = u->block_usec > left_to_fill ? u->block_usec - left_to_fill : 0ULL;
if (u->block_usec == (pa_usec_t) -1)
u->block_usec = s->thread_info.max_latency;
- pa_log("new block msec = %lu", (unsigned long) (u->block_usec / PA_USEC_PER_MSEC));
+ pa_log_debug("new block msec = %lu", (unsigned long) (u->block_usec / PA_USEC_PER_MSEC));
}
static void process_render(struct userdata *u, pa_usec_t now) {
k = pa_usec_to_bytes_round_up(now + u->block_usec - u->timestamp, &u->source->sample_spec);
- chunk.memblock = u->memchunk.memblock;
- chunk.index = u->peek_index;
- chunk.length = PA_MIN(u->memchunk.length - u->peek_index, k);
+ chunk = u->memchunk;
+ chunk.index += u->peek_index;
+ chunk.length = PA_MIN(chunk.length - u->peek_index, k);
- pa_log_debug("posting %lu", (unsigned long) chunk.length);
+/* pa_log_debug("posting %lu", (unsigned long) chunk.length); */
pa_source_post(u->source, &chunk);
- pa_memchunk_dump_to_file(&chunk, "sine");
u->peek_index += chunk.length;
while (u->peek_index >= u->memchunk.length)
pa_log_debug("Thread starting up");
pa_thread_mq_install(&u->thread_mq);
- pa_rtpoll_install(u->rtpoll);
- u->timestamp = pa_rtclock_usec();
+ u->timestamp = pa_rtclock_now();
for (;;) {
int ret;
if (PA_SOURCE_IS_OPENED(u->source->thread_info.state)) {
pa_usec_t now;
- now = pa_rtclock_usec();
+ now = pa_rtclock_now();
if (u->timestamp <= now)
process_render(u, now);
pa_rtpoll_set_timer_disabled(u->rtpoll);
/* Hmm, nothing to do. Let's sleep */
- if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
+ if ((ret = pa_rtpoll_run(u->rtpoll, true)) < 0)
goto fail;
if (ret == 0)
pa_log_debug("Thread shutting down");
}
-static void calc_sine(float *f, size_t l, double freq) {
- size_t i;
-
- l /= sizeof(float);
-
- for (i = 0; i < l; i++)
- f[i] = (float) sin((double) i/(double)l*M_PI*2*freq)/2;
-}
-
int pa__init(pa_module*m) {
struct userdata *u;
pa_modargs *ma;
pa_source_new_data data;
uint32_t frequency;
pa_sample_spec ss;
- void *p;
pa_assert(m);
pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);
u->peek_index = 0;
- pa_memchunk_reset(&u->memchunk);
- u->memchunk.memblock = pa_memblock_new(m->core->mempool, (size_t) -1);
- u->memchunk.length = pa_frame_align(pa_memblock_get_length(u->memchunk.memblock), &ss);
-
- p = pa_memblock_acquire(u->memchunk.memblock);
- calc_sine(p, u->memchunk.length,
- (double) frequency * (double) pa_bytes_to_usec(u->memchunk.length, &ss) / (double) PA_USEC_PER_SEC);
- pa_memblock_release(u->memchunk.memblock);
+ pa_memchunk_sine(&u->memchunk, m->core->mempool, ss.rate, frequency);
pa_source_new_data_init(&data);
data.driver = __FILE__;
pa_proplist_setf(data.proplist, "sine.hz", "%u", frequency);
pa_source_new_data_set_sample_spec(&data, &ss);
+ if (pa_modargs_get_proplist(ma, "source_properties", data.proplist, PA_UPDATE_REPLACE) < 0) {
+ pa_log("Invalid properties");
+ pa_source_new_data_done(&data);
+ goto fail;
+ }
+
u->source = pa_source_new(m->core, &data, PA_SOURCE_LATENCY);
pa_source_new_data_done(&data);
u->source->update_requested_latency = source_update_requested_latency_cb;
u->source->userdata = u;
+ u->block_usec = BLOCK_USEC;
+
pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
pa_source_set_rtpoll(u->source, u->rtpoll);
+ pa_source_set_fixed_latency(u->source, u->block_usec);
- pa_source_set_latency_range(u->source, (pa_usec_t) -1, MAX_LATENCY_USEC);
- u->block_usec = u->source->thread_info.max_latency;
-
- if (!(u->thread = pa_thread_new(thread_func, u))) {
+ if (!(u->thread = pa_thread_new("sine-source", thread_func, u))) {
pa_log("Failed to create thread.");
goto fail;
}
return -1;
}
+int pa__get_n_used(pa_module *m) {
+ struct userdata *u;
+
+ pa_assert(m);
+ pa_assert_se(u = m->userdata);
+
+ return pa_source_linked_by(u->source);
+}
+
void pa__done(pa_module*m) {
struct userdata *u;