This file is part of polypaudio.
polypaudio is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
+ 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.
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 General Public License
+ 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.
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
+#include <getopt.h>
#include <polyp/polyplib.h>
#include <polyp/polyplib-error.h>
#include <polyp/mainloop.h>
#include <polyp/mainloop-signal.h>
+#include <polyp/polyplib-version.h>
+
+#if PA_API_VERSION != 6
+#error Invalid Polypaudio API version
+#endif
static enum { RECORD, PLAYBACK } mode = PLAYBACK;
static struct pa_io_event* stdio_event = NULL;
+static char *stream_name = NULL, *client_name = NULL, *device = NULL;
+
+static int verbose = 0;
+static pa_volume_t volume = PA_VOLUME_NORM;
+
+static struct pa_sample_spec sample_spec = {
+ .format = PA_SAMPLE_S16LE,
+ .rate = 44100,
+ .channels = 2
+};
+
/* A shortcut for terminating the application */
static void quit(int ret) {
assert(mainloop_api);
mainloop_api->io_enable(stdio_event, PA_IO_EVENT_OUTPUT);
if (buffer) {
- fprintf(stderr, "Buffer overrrun, dropping incoming data\n");
+ fprintf(stderr, "Buffer overrun, dropping incoming data\n");
return;
}
break;
case PA_STREAM_READY:
- fprintf(stderr, "Stream successfully created\n");
+ if (verbose)
+ fprintf(stderr, "Stream successfully created\n");
break;
case PA_STREAM_FAILED:
default:
- fprintf(stderr, "Stream errror: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s))));
+ fprintf(stderr, "Stream error: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s))));
quit(1);
}
}
/* This is called whenever the context status changes */
static void context_state_callback(struct pa_context *c, void *userdata) {
- static const struct pa_sample_spec ss = {
- .format = PA_SAMPLE_S16LE,
- .rate = 44100,
- .channels = 2
- };
-
assert(c);
switch (pa_context_get_state(c)) {
case PA_CONTEXT_READY:
assert(c && !stream);
- fprintf(stderr, "Connection established.\n");
- stream = pa_stream_new(c, "pacat", &ss);
+ if (verbose)
+ fprintf(stderr, "Connection established.\n");
+
+ stream = pa_stream_new(c, stream_name, &sample_spec);
assert(stream);
pa_stream_set_state_callback(stream, stream_state_callback, NULL);
pa_stream_set_read_callback(stream, stream_read_callback, NULL);
if (mode == PLAYBACK)
- pa_stream_connect_playback(stream, NULL, NULL);
+ pa_stream_connect_playback(stream, device, NULL, 0, volume);
else
- pa_stream_connect_record(stream, NULL, NULL);
+ pa_stream_connect_record(stream, device, NULL, 0);
break;
fprintf(stderr, "Failed to drain stream: %s\n", pa_strerror(pa_context_errno(context)));
quit(1);
}
-
- fprintf(stderr, "Playback stream drained.\n");
+
+ if (verbose)
+ fprintf(stderr, "Playback stream drained.\n");
pa_stream_disconnect(stream);
pa_stream_unref(stream);
pa_context_disconnect(context);
else {
pa_operation_unref(o);
- fprintf(stderr, "Draining connection to server.\n");
+
+ if (verbose)
+ fprintf(stderr, "Draining connection to server.\n");
}
}
assert(buffer);
if ((r = read(fd, buffer, l)) <= 0) {
if (r == 0) {
- fprintf(stderr, "Got EOF.\n");
+ if (verbose)
+ fprintf(stderr, "Got EOF.\n");
pa_operation_unref(pa_stream_drain(stream, stream_drain_complete, NULL));
} else {
fprintf(stderr, "read() failed: %s\n", strerror(errno));
/* UNIX signal to quit recieved */
static void exit_signal_callback(struct pa_mainloop_api*m, struct pa_signal_event *e, int sig, void *userdata) {
- fprintf(stderr, "Got SIGINT, exiting.\n");
+ if (verbose)
+ fprintf(stderr, "Got SIGINT, exiting.\n");
quit(0);
}
-/* Show the current playback latency */
+/* Show the current latency */
static void stream_get_latency_callback(struct pa_stream *s, const struct pa_latency_info *i, void *userdata) {
+ pa_usec_t total;
+ int negative = 0;
assert(s);
if (!i) {
- fprintf(stderr, "Failed to get latency: %s\n", strerror(errno));
+ fprintf(stderr, "Failed to get latency: %s\n", pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
- fprintf(stderr, "Latency: buffer: %0.0f usec; sink: %0.0f usec; transport: %0.0f usec; total: %0.0f usec; synchronized clocks: %s.\n",
- (float) i->buffer_usec, (float) i->sink_usec, (float) i->transport_usec,
- (float) (i->buffer_usec+i->sink_usec+i->transport_usec),
+ total = pa_stream_get_latency(s, i, &negative);
+
+ fprintf(stderr, "Latency: buffer: %0.0f usec; sink: %0.0f usec; source: %0.0f usec; transport: %0.0f usec; total: %0.0f usec; synchronized clocks: %s.\n",
+ (float) i->buffer_usec, (float) i->sink_usec, (float) i->source_usec, (float) i->transport_usec, (float) total * (negative?-1:1),
i->synchronized_clocks ? "yes" : "no");
}
/* Someone requested that the latency is shown */
static void sigusr1_signal_callback(struct pa_mainloop_api*m, struct pa_signal_event *e, int sig, void *userdata) {
- if (mode != PLAYBACK)
- return;
-
fprintf(stderr, "Got SIGUSR1, requesting latency.\n");
- pa_operation_unref(pa_stream_get_latency(stream, stream_get_latency_callback, NULL));
+ pa_operation_unref(pa_stream_get_latency_info(stream, stream_get_latency_callback, NULL));
}
+
+static void help(const char *argv0) {
+
+ printf("%s [options]\n\n"
+ " -h, --help Show this help\n"
+ " --version Show version\n\n"
+ " -r, --record Create a connection for recording\n"
+ " -p, --playback Create a connection for playback\n\n"
+ " -v, --verbose Enable verbose operations\n\n"
+ " -s, --server=SERVER The name of the server to connect to\n"
+ " -d, --device=DEVICE The name of the sink/source to connect to\n"
+ " -n, --client-name=NAME How to call this client on the server\n"
+ " --stream-name=NAME How to call this stream on the server\n"
+ " --volume=VOLUME Specify the initial (linear) volume in range 0...256\n"
+ " --rate=SAMPLERATE The sample rate in Hz (defaults to 44100)\n"
+ " --format=SAMPLEFORMAT The sample type, one of s16le, s16be, u8, float32le,\n"
+ " float32be, ulaw, alaw (defaults to s16ne)\n"
+ " --channels=CHANNELS The number of channels, 1 for mono, 2 for stereo\n"
+ " (defaults to 2)\n",
+ argv0);
+}
+
+enum {
+ ARG_VERSION = 256,
+ ARG_STREAM_NAME,
+ ARG_VOLUME,
+ ARG_SAMPLERATE,
+ ARG_SAMPLEFORMAT,
+ ARG_CHANNELS
+};
+
int main(int argc, char *argv[]) {
struct pa_mainloop* m = NULL;
- int ret = 1, r;
- char *bn;
+ int ret = 1, r, c;
+ char *bn, *server = NULL;
+
+ static const struct option long_options[] = {
+ {"record", 0, NULL, 'r'},
+ {"playback", 0, NULL, 'p'},
+ {"device", 1, NULL, 'd'},
+ {"server", 1, NULL, 's'},
+ {"client-name", 1, NULL, 'n'},
+ {"stream-name", 1, NULL, ARG_STREAM_NAME},
+ {"version", 0, NULL, ARG_VERSION},
+ {"help", 0, NULL, 'h'},
+ {"verbose", 0, NULL, 'v'},
+ {"volume", 1, NULL, ARG_VOLUME},
+ {"rate", 1, NULL, ARG_SAMPLERATE},
+ {"format", 1, NULL, ARG_SAMPLEFORMAT},
+ {"channels", 1, NULL, ARG_CHANNELS},
+ {NULL, 0, NULL, 0}
+ };
if (!(bn = strrchr(argv[0], '/')))
bn = argv[0];
else if (strstr(bn, "cat") || strstr(bn, "play"))
mode = PLAYBACK;
- if (argc >= 2) {
- if (!strcmp(argv[1], "-r"))
- mode = RECORD;
- else if (!strcmp(argv[1], "-p"))
- mode = PLAYBACK;
- else {
- fprintf(stderr, "Invalid argument\n");
- goto quit;
+ while ((c = getopt_long(argc, argv, "rpd:s:n:hv", long_options, NULL)) != -1) {
+
+ switch (c) {
+ case 'h' :
+ help(bn);
+ ret = 0;
+ goto quit;
+
+ case ARG_VERSION:
+ printf("pacat "PACKAGE_VERSION"\nCompiled with libpolyp %s\nLinked with libpolyp %s\n", pa_get_headers_version(), pa_get_library_version());
+ ret = 0;
+ goto quit;
+
+ case 'r':
+ mode = RECORD;
+ break;
+
+ case 'p':
+ mode = PLAYBACK;
+ break;
+
+ case 'd':
+ free(device);
+ device = strdup(optarg);
+ break;
+
+ case 's':
+ free(server);
+ server = strdup(optarg);
+ break;
+
+ case 'n':
+ free(client_name);
+ client_name = strdup(optarg);
+ break;
+
+ case ARG_STREAM_NAME:
+ free(stream_name);
+ stream_name = strdup(optarg);
+ break;
+
+ case 'v':
+ verbose = 1;
+ break;
+
+ case ARG_VOLUME: {
+ int v = atoi(optarg);
+ volume = v < 0 ? 0 : v;
+ break;
+ }
+
+ case ARG_CHANNELS:
+ sample_spec.channels = atoi(optarg);
+ break;
+
+ case ARG_SAMPLEFORMAT:
+ sample_spec.format = pa_parse_sample_format(optarg);
+ break;
+
+ case ARG_SAMPLERATE:
+ sample_spec.rate = atoi(optarg);
+ break;
+
+ default:
+ goto quit;
}
}
- fprintf(stderr, "Opening a %s stream.\n", mode == RECORD ? "recording" : "playback");
+ if (!client_name)
+ client_name = strdup(bn);
+
+ if (!stream_name)
+ stream_name = strdup(client_name);
+
+ if (!pa_sample_spec_valid(&sample_spec)) {
+ fprintf(stderr, "Invalid sample specification\n");
+ goto quit;
+ }
+
+ if (verbose) {
+ char t[PA_SAMPLE_SPEC_SNPRINT_MAX];
+ pa_sample_spec_snprint(t, sizeof(t), &sample_spec);
+ fprintf(stderr, "Opening a %s stream with sample specification '%s'.\n", mode == RECORD ? "recording" : "playback", t);
+ }
/* Set up a new main loop */
if (!(m = pa_mainloop_new())) {
}
/* Create a new connection context */
- if (!(context = pa_context_new(mainloop_api, bn))) {
+ if (!(context = pa_context_new(mainloop_api, client_name))) {
fprintf(stderr, "pa_context_new() failed.\n");
goto quit;
}
pa_context_set_state_callback(context, context_state_callback, NULL);
/* Connect the context */
- pa_context_connect_spawn(context, NULL, NULL, NULL);
+ pa_context_connect(context, server, 1, NULL);
/* Run the main loop */
if (pa_mainloop_run(m, &ret) < 0) {
pa_mainloop_free(m);
}
- if (buffer)
- free(buffer);
+ free(buffer);
+
+ free(server);
+ free(device);
+ free(client_name);
+ free(stream_name);
return ret;
}