diff options
Diffstat (limited to 'src/utils/pacat.c')
| -rw-r--r-- | src/utils/pacat.c | 769 |
1 files changed, 769 insertions, 0 deletions
diff --git a/src/utils/pacat.c b/src/utils/pacat.c new file mode 100644 index 00000000..68e308d8 --- /dev/null +++ b/src/utils/pacat.c @@ -0,0 +1,769 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + Copyright 2004-2006 Lennart Poettering + Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB + + 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, + or (at your option) any later version. + + PulseAudio 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 PulseAudio; 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 <signal.h> +#include <string.h> +#include <errno.h> +#include <unistd.h> +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <getopt.h> +#include <fcntl.h> + +#include <pulse/pulseaudio.h> + +#define TIME_EVENT_USEC 50000 + +#if PA_API_VERSION < 10 +#error Invalid PulseAudio 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 +}; + +static pa_channel_map channel_map; +static int channel_map_set = 0; + +static pa_stream_flags_t flags = 0; + +/* 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; + + if (pa_stream_write(stream, (uint8_t*) buffer + buffer_index, l, NULL, 0, PA_SEEK_RELATIVE) < 0) { + fprintf(stderr, "pa_stream_write() failed: %s\n", pa_strerror(pa_context_errno(context))); + quit(1); + return; + } + + buffer_length -= l; + buffer_index += l; + + if (!buffer_length) { + pa_xfree(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); + assert(length > 0); + + 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, size_t length, void *userdata) { + const void *data; + assert(s); + assert(length > 0); + + if (stdio_event) + mainloop_api->io_enable(stdio_event, PA_IO_EVENT_OUTPUT); + + if (pa_stream_peek(s, &data, &length) < 0) { + fprintf(stderr, "pa_stream_peek() failed: %s\n", pa_strerror(pa_context_errno(context))); + quit(1); + return; + } + + assert(data); + assert(length > 0); + + if (buffer) { + fprintf(stderr, "Buffer overrun, dropping incoming data\n"); + if (pa_stream_drop(s) < 0) { + fprintf(stderr, "pa_stream_drop() failed: %s\n", pa_strerror(pa_context_errno(context))); + quit(1); + } + return; + } + + buffer = pa_xmalloc(buffer_length = length); + memcpy(buffer, data, length); + buffer_index = 0; + pa_stream_drop(s); +} + +/* 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) { + const pa_buffer_attr *a; + char cmt[PA_CHANNEL_MAP_SNPRINT_MAX], sst[PA_SAMPLE_SPEC_SNPRINT_MAX]; + + fprintf(stderr, "Stream successfully created.\n"); + + if (!(a = pa_stream_get_buffer_attr(s))) + fprintf(stderr, "pa_stream_get_buffer_attr() failed: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s)))); + else { + + if (mode == PLAYBACK) + fprintf(stderr, "Buffer metrics: maxlength=%u, tlength=%u, prebuf=%u, minreq=%u\n", a->maxlength, a->tlength, a->prebuf, a->minreq); + else { + assert(mode == RECORD); + fprintf(stderr, "Buffer metrics: maxlength=%u, fragsize=%u\n", a->maxlength, a->fragsize); + } + } + + fprintf(stderr, "Using sample spec '%s', channel map '%s'.\n", + pa_sample_spec_snprint(sst, sizeof(sst), pa_stream_get_sample_spec(s)), + pa_channel_map_snprint(cmt, sizeof(cmt), pa_stream_get_channel_map(s))); + + fprintf(stderr, "Connected to device %s (%u, %ssuspended).\n", + pa_stream_get_device_name(s), + pa_stream_get_device_index(s), + pa_stream_is_suspended(s) ? "" : "not "); + } + + break; + + case PA_STREAM_FAILED: + default: + fprintf(stderr, "Stream error: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s)))); + quit(1); + } +} + +static void stream_suspended_callback(pa_stream *s, void *userdata) { + assert(s); + + if (verbose) { + if (pa_stream_is_suspended(s)) + fprintf(stderr, "Stream device suspended.\n"); + else + fprintf(stderr, "Stream device resumed.\n"); + } +} + +static void stream_moved_callback(pa_stream *s, void *userdata) { + assert(s); + + if (verbose) + fprintf(stderr, "Stream moved to device %s (%u, %ssuspended).\n", pa_stream_get_device_name(s), pa_stream_get_device_index(s), pa_stream_is_suspended(s) ? "" : "not "); +} + +/* 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: { + int r; + + assert(c); + assert(!stream); + + if (verbose) + fprintf(stderr, "Connection established.\n"); + + if (!(stream = pa_stream_new(c, stream_name, &sample_spec, channel_map_set ? &channel_map : NULL))) { + fprintf(stderr, "pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(c))); + goto fail; + } + + 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); + pa_stream_set_suspended_callback(stream, stream_suspended_callback, NULL); + pa_stream_set_moved_callback(stream, stream_moved_callback, NULL); + + if (mode == PLAYBACK) { + pa_cvolume cv; + if ((r = pa_stream_connect_playback(stream, device, NULL, flags, pa_cvolume_set(&cv, sample_spec.channels, volume), NULL)) < 0) { + fprintf(stderr, "pa_stream_connect_playback() failed: %s\n", pa_strerror(pa_context_errno(c))); + goto fail; + } + + } else { + if ((r = pa_stream_connect_record(stream, device, NULL, flags)) < 0) { + fprintf(stderr, "pa_stream_connect_record() failed: %s\n", pa_strerror(pa_context_errno(c))); + goto fail; + } + } + + 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))); + goto fail; + } + + return; + +fail: + 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 { + 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); + assert(e); + assert(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 = pa_xmalloc(l); + + if ((r = read(fd, buffer, l)) <= 0) { + if (r == 0) { + if (verbose) + fprintf(stderr, "Got EOF.\n"); + + if (stream) { + pa_operation *o; + + if (!(o = pa_stream_drain(stream, stream_drain_complete, NULL))) { + fprintf(stderr, "pa_stream_drain(): %s\n", pa_strerror(pa_context_errno(context))); + quit(1); + return; + } + + pa_operation_unref(o); + } else + quit(0); + + } 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); + assert(e); + assert(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) { + pa_xfree(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_update_timing_callback(pa_stream *s, int success, void *userdata) { + pa_usec_t latency, usec; + int negative = 0; + + assert(s); + + if (!success || + pa_stream_get_time(s, &usec) < 0 || + pa_stream_get_latency(s, &latency, &negative) < 0) { + fprintf(stderr, "Failed to get latency: %s\n", pa_strerror(pa_context_errno(context))); + quit(1); + return; + } + + fprintf(stderr, "Time: %0.3f sec; Latency: %0.0f usec. \r", + (float) usec / 1000000, + (float) latency * (negative?-1:1)); +} + +/* Someone requested that the latency is shown */ +static void sigusr1_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) { + + if (!stream) + return; + + pa_operation_unref(pa_stream_update_timing_info(stream, stream_update_timing_callback, NULL)); +} + +static void time_event_callback(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) { + struct timeval next; + + if (stream && pa_stream_get_state(stream) == PA_STREAM_READY) { + pa_operation *o; + if (!(o = pa_stream_update_timing_info(stream, stream_update_timing_callback, NULL))) + fprintf(stderr, "pa_stream_update_timing_info() failed: %s\n", pa_strerror(pa_context_errno(context))); + else + pa_operation_unref(o); + } + + pa_gettimeofday(&next); + pa_timeval_add(&next, TIME_EVENT_USEC); + + m->time_restart(e, &next); +} + +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...65536\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" + " --channel-map=CHANNELMAP Channel map to use instead of the default\n" + " --fix-format Take the sample format from the sink the stream is\n" + " being connected to.\n" + " --fix-rate Take the sampling rate from the sink the stream is\n" + " being connected to.\n" + " --fix-channels Take the number of channels and the channel map\n" + " from the sink the stream is being connected to.\n" + " --no-remix Don't upmix or downmix channels.\n" + " --no-remap Map channels by index instead of name.\n" + , + argv0); +} + +enum { + ARG_VERSION = 256, + ARG_STREAM_NAME, + ARG_VOLUME, + ARG_SAMPLERATE, + ARG_SAMPLEFORMAT, + ARG_CHANNELS, + ARG_CHANNELMAP, + ARG_FIX_FORMAT, + ARG_FIX_RATE, + ARG_FIX_CHANNELS, + ARG_NO_REMAP, + ARG_NO_REMIX +}; + +int main(int argc, char *argv[]) { + pa_mainloop* m = NULL; + int ret = 1, r, c; + char *bn, *server = NULL; + pa_time_event *time_event = 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}, + {"channel-map", 1, NULL, ARG_CHANNELMAP}, + {"fix-format", 0, NULL, ARG_FIX_FORMAT}, + {"fix-rate", 0, NULL, ARG_FIX_RATE}, + {"fix-channels",0, NULL, ARG_FIX_CHANNELS}, + {"no-remap", 0, NULL, ARG_NO_REMAP}, + {"no-remix", 0, NULL, ARG_NO_REMIX}, + {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 libpulse %s\nLinked with libpulse %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': + pa_xfree(device); + device = pa_xstrdup(optarg); + break; + + case 's': + pa_xfree(server); + server = pa_xstrdup(optarg); + break; + + case 'n': + pa_xfree(client_name); + client_name = pa_xstrdup(optarg); + break; + + case ARG_STREAM_NAME: + pa_xfree(stream_name); + stream_name = pa_xstrdup(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; + + case ARG_CHANNELMAP: + if (!pa_channel_map_parse(&channel_map, optarg)) { + fprintf(stderr, "Invalid channel map\n"); + goto quit; + } + + channel_map_set = 1; + break; + + case ARG_FIX_CHANNELS: + flags |= PA_STREAM_FIX_CHANNELS; + break; + + case ARG_FIX_RATE: + flags |= PA_STREAM_FIX_RATE; + break; + + case ARG_FIX_FORMAT: + flags |= PA_STREAM_FIX_FORMAT; + break; + + case ARG_NO_REMIX: + flags |= PA_STREAM_NO_REMIX_CHANNELS; + break; + + case ARG_NO_REMAP: + flags |= PA_STREAM_NO_REMAP_CHANNELS; + break; + + default: + goto quit; + } + } + + if (!pa_sample_spec_valid(&sample_spec)) { + fprintf(stderr, "Invalid sample specification\n"); + goto quit; + } + + if (channel_map_set && channel_map.channels != sample_spec.channels) { + fprintf(stderr, "Channel map doesn't match 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); + } + + if (!(optind >= argc)) { + if (optind+1 == argc) { + int fd; + + if ((fd = open(argv[optind], mode == PLAYBACK ? O_RDONLY : O_WRONLY|O_TRUNC|O_CREAT, 0666)) < 0) { + fprintf(stderr, "open(): %s\n", strerror(errno)); + goto quit; + } + + if (dup2(fd, mode == PLAYBACK ? 0 : 1) < 0) { + fprintf(stderr, "dup2(): %s\n", strerror(errno)); + goto quit; + } + + close(fd); + + if (!stream_name) + stream_name = pa_xstrdup(argv[optind]); + + } else { + fprintf(stderr, "Too many arguments.\n"); + goto quit; + } + } + + if (!client_name) + client_name = pa_xstrdup(bn); + + if (!stream_name) + stream_name = pa_xstrdup(client_name); + + /* 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, "io_new() 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, 0, NULL); + + if (verbose) { + struct timeval tv; + + pa_gettimeofday(&tv); + pa_timeval_add(&tv, TIME_EVENT_USEC); + + if (!(time_event = mainloop_api->time_new(mainloop_api, &tv, time_event_callback, NULL))) { + fprintf(stderr, "time_new() failed.\n"); + goto quit; + } + } + + /* 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 (time_event) { + assert(mainloop_api); + mainloop_api->time_free(time_event); + } + + if (m) { + pa_signal_done(); + pa_mainloop_free(m); + } + + pa_xfree(buffer); + + pa_xfree(server); + pa_xfree(device); + pa_xfree(client_name); + pa_xfree(stream_name); + + return ret; +} |