From e205b25d65ccb380fa158711e24d55b6de5d9bc1 Mon Sep 17 00:00:00 2001 From: Pierre Ossman Date: Thu, 16 Feb 2006 19:19:58 +0000 Subject: Reorganised the source tree. We now have src/ with a couple of subdirs: * daemon/ - Contains the files specific to the polypaudio daemon. * modules/ - All loadable modules. * polyp/ - Files that are part of the public, application interface or are only used in libpolyp. * polypcore/ - All other shared files. * tests/ - Test programs. * utils/ - Utility programs. git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@487 fefdeb5f-60dc-0310-8127-8f9354f1896f --- src/utils/pacat.c | 541 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 541 insertions(+) create mode 100644 src/utils/pacat.c (limited to 'src/utils/pacat.c') diff --git a/src/utils/pacat.c b/src/utils/pacat.c new file mode 100644 index 00000000..bd2b64fd --- /dev/null +++ b/src/utils/pacat.c @@ -0,0 +1,541 @@ +/* $Id$ */ + +/*** + 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 +#endif + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#if PA_API_VERSION != 8 +#error Invalid Polypaudio API version +#endif + +static enum { RECORD, PLAYBACK } mode = PLAYBACK; + +static pa_context *context = NULL; +static pa_stream *stream = NULL; +static pa_mainloop_api *mainloop_api = NULL; + +static void *buffer = NULL; +static size_t buffer_length = 0, buffer_index = 0; + +static 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 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->quit(mainloop_api, ret); +} + +/* Write some data to the stream */ +static void do_stream_write(size_t length) { + size_t l; + assert(length); + + if (!buffer || !buffer_length) + return; + + l = length; + if (l > buffer_length) + l = buffer_length; + + pa_stream_write(stream, (uint8_t*) buffer + buffer_index, l, NULL, 0); + buffer_length -= l; + buffer_index += l; + + if (!buffer_length) { + free(buffer); + buffer = NULL; + buffer_index = buffer_length = 0; + } +} + +/* This is called whenever new data may be written to the stream */ +static void stream_write_callback(pa_stream *s, size_t length, void *userdata) { + assert(s && length); + + if (stdio_event) + mainloop_api->io_enable(stdio_event, PA_IO_EVENT_INPUT); + + if (!buffer) + return; + + do_stream_write(length); +} + +/* This is called whenever new data may is available */ +static void stream_read_callback(pa_stream *s, const void*data, size_t length, void *userdata) { + assert(s && data && length); + + if (stdio_event) + mainloop_api->io_enable(stdio_event, PA_IO_EVENT_OUTPUT); + + if (buffer) { + fprintf(stderr, "Buffer overrun, dropping incoming data\n"); + return; + } + + buffer = malloc(buffer_length = length); + assert(buffer); + memcpy(buffer, data, length); + buffer_index = 0; +} + +/* This routine is called whenever the stream state changes */ +static void stream_state_callback(pa_stream *s, void *userdata) { + assert(s); + + switch (pa_stream_get_state(s)) { + case PA_STREAM_CREATING: + case PA_STREAM_TERMINATED: + break; + + case PA_STREAM_READY: + if (verbose) + fprintf(stderr, "Stream successfully created\n"); + break; + + case PA_STREAM_FAILED: + default: + 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(pa_context *c, void *userdata) { + assert(c); + + switch (pa_context_get_state(c)) { + case PA_CONTEXT_CONNECTING: + case PA_CONTEXT_AUTHORIZING: + case PA_CONTEXT_SETTING_NAME: + break; + + case PA_CONTEXT_READY: + + assert(c && !stream); + + if (verbose) + fprintf(stderr, "Connection established.\n"); + + stream = pa_stream_new(c, stream_name, &sample_spec, NULL); + assert(stream); + + pa_stream_set_state_callback(stream, stream_state_callback, NULL); + pa_stream_set_write_callback(stream, stream_write_callback, NULL); + pa_stream_set_read_callback(stream, stream_read_callback, NULL); + + if (mode == PLAYBACK) { + pa_cvolume cv; + pa_stream_connect_playback(stream, device, NULL, 0, pa_cvolume_set(&cv, PA_CHANNELS_MAX, volume)); + } else + pa_stream_connect_record(stream, device, NULL, 0); + + break; + + case PA_CONTEXT_TERMINATED: + quit(0); + break; + + case PA_CONTEXT_FAILED: + default: + fprintf(stderr, "Connection failure: %s\n", pa_strerror(pa_context_errno(c))); + quit(1); + } +} + +/* Connection draining complete */ +static void context_drain_complete(pa_context*c, void *userdata) { + pa_context_disconnect(c); +} + +/* Stream draining complete */ +static void stream_drain_complete(pa_stream*s, int success, void *userdata) { + pa_operation *o; + + if (!success) { + fprintf(stderr, "Failed to drain stream: %s\n", pa_strerror(pa_context_errno(context))); + quit(1); + } + + if (verbose) + fprintf(stderr, "Playback stream drained.\n"); + + pa_stream_disconnect(stream); + pa_stream_unref(stream); + stream = NULL; + + if (!(o = pa_context_drain(context, context_drain_complete, NULL))) + pa_context_disconnect(context); + else { + pa_operation_unref(o); + + if (verbose) + fprintf(stderr, "Draining connection to server.\n"); + } +} + +/* New data on STDIN **/ +static void stdin_callback(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) { + size_t l, w = 0; + ssize_t r; + assert(a == mainloop_api && e && stdio_event == e); + + if (buffer) { + mainloop_api->io_enable(stdio_event, PA_IO_EVENT_NULL); + return; + } + + if (!stream || pa_stream_get_state(stream) != PA_STREAM_READY || !(l = w = pa_stream_writable_size(stream))) + l = 4096; + + buffer = malloc(l); + assert(buffer); + if ((r = read(fd, buffer, l)) <= 0) { + if (r == 0) { + 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)); + quit(1); + } + + mainloop_api->io_free(stdio_event); + stdio_event = NULL; + return; + } + + buffer_length = r; + buffer_index = 0; + + if (w) + do_stream_write(w); +} + +/* Some data may be written to STDOUT */ +static void stdout_callback(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) { + ssize_t r; + assert(a == mainloop_api && e && stdio_event == e); + + if (!buffer) { + mainloop_api->io_enable(stdio_event, PA_IO_EVENT_NULL); + return; + } + + assert(buffer_length); + + if ((r = write(fd, (uint8_t*) buffer+buffer_index, buffer_length)) <= 0) { + fprintf(stderr, "write() failed: %s\n", strerror(errno)); + quit(1); + + mainloop_api->io_free(stdio_event); + stdio_event = NULL; + return; + } + + buffer_length -= r; + buffer_index += r; + + if (!buffer_length) { + free(buffer); + buffer = NULL; + buffer_length = buffer_index = 0; + } +} + +/* UNIX signal to quit recieved */ +static void exit_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) { + if (verbose) + fprintf(stderr, "Got signal, exiting.\n"); + quit(0); + +} + +/* Show the current latency */ +static void stream_get_latency_callback(pa_stream *s, const 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", pa_strerror(pa_context_errno(context))); + quit(1); + return; + } + + 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(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) { + fprintf(stderr, "Got SIGUSR1, requesting latency.\n"); + 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[]) { + pa_mainloop* m = NULL; + 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 + bn++; + + if (strstr(bn, "rec") || strstr(bn, "mon")) + mode = RECORD; + else if (strstr(bn, "cat") || strstr(bn, "play")) + mode = PLAYBACK; + + 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; + } + } + + 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())) { + fprintf(stderr, "pa_mainloop_new() failed.\n"); + goto quit; + } + + mainloop_api = pa_mainloop_get_api(m); + + r = pa_signal_init(mainloop_api); + assert(r == 0); + pa_signal_new(SIGINT, exit_signal_callback, NULL); + pa_signal_new(SIGTERM, exit_signal_callback, NULL); +#ifdef SIGUSR1 + pa_signal_new(SIGUSR1, sigusr1_signal_callback, NULL); +#endif +#ifdef SIGPIPE + signal(SIGPIPE, SIG_IGN); +#endif + + if (!(stdio_event = mainloop_api->io_new(mainloop_api, + mode == PLAYBACK ? STDIN_FILENO : STDOUT_FILENO, + mode == PLAYBACK ? PA_IO_EVENT_INPUT : PA_IO_EVENT_OUTPUT, + mode == PLAYBACK ? stdin_callback : stdout_callback, NULL))) { + fprintf(stderr, "source_io() failed.\n"); + goto quit; + } + + /* Create a new connection context */ + 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(context, server, 1, NULL); + + /* Run the main loop */ + if (pa_mainloop_run(m, &ret) < 0) { + fprintf(stderr, "pa_mainloop_run() failed.\n"); + goto quit; + } + +quit: + if (stream) + pa_stream_unref(stream); + + if (context) + pa_context_unref(context); + + if (stdio_event) { + assert(mainloop_api); + mainloop_api->io_free(stdio_event); + } + + if (m) { + pa_signal_done(); + pa_mainloop_free(m); + } + + free(buffer); + + free(server); + free(device); + free(client_name); + free(stream_name); + + return ret; +} -- cgit