mirrors/pulseaudio
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git synced 2025-10-29 05:40:23 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions
pulseaudio/src/utils/pacat.c
Rafael Fontenelle 10445e0fdd pacat: fix syntax error
2024-10-11 15:28:12 +00:00

1266 lines
42 KiB
C
Raw Blame History

/***
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 2.1 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, see <http://www.gnu.org/licenses/>.
***/
#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 <locale.h>
#include <sndfile.h>
#include <pulse/pulseaudio.h>
#include <pulse/rtclock.h>
#include <pulsecore/core-util.h>
#include <pulsecore/i18n.h>
#include <pulsecore/log.h>
#include <pulsecore/macro.h>
#include <pulsecore/sndfile-util.h>
#include <pulsecore/sample-util.h>
#define TIME_EVENT_USEC 50000
#define CLEAR_LINE "\x1B[K"
static enum { RECORD, PLAYBACK } mode = PLAYBACK;
static const char *purpose = NULL;
static pa_context *context = NULL;
static pa_stream *stream = NULL;
static pa_mainloop_api *mainloop_api = NULL;
/* Playback Mode (raw):
*
* We can only write audio to the PA stream in multiples of the stream's
* sample-spec frame size. Meanwhile, the STDIN read(2) system call can return
* a length much smaller than the frame-aligned size requested - leading to
* invalid writes. This can be reproduced by choosing a starved STDIN backend
* (e.g. "pacat /dev/random", "echo 1234 | pacat"), or an incomplete WAV file
* in raw non-paplay mode.
*
* Solve this by writing only frame-aligned sizes, while caching the resulting
* trailing partial frames here. This partial frame is then directly written
* in the next stream write iteration. Rinse and repeat.
*/
static void *partialframe_buf = NULL;
static size_t partialframe_len = 0;
/* Recording Mode buffers */
static void *buffer = NULL;
static size_t buffer_length = 0, buffer_index = 0;
static void *silence_buffer = NULL;
static size_t silence_buffer_length = 0;
static pa_io_event* stdio_event = NULL;
static pa_proplist *proplist = NULL;
static char *device = NULL;
static SNDFILE* sndfile = NULL;
static bool verbose = false;
static pa_volume_t volume = PA_VOLUME_NORM;
static bool volume_is_set = false;
static pa_sample_spec sample_spec = {
.format = PA_SAMPLE_S16LE,
.rate = 44100,
.channels = 2
};
static bool sample_spec_set = false;
static pa_channel_map channel_map;
static bool channel_map_set = false;
static sf_count_t (*readf_function)(SNDFILE *_sndfile, void *ptr, sf_count_t frames) = NULL;
static sf_count_t (*writef_function)(SNDFILE *_sndfile, const void *ptr, sf_count_t frames) = NULL;
static pa_stream_flags_t flags = 0;
static size_t latency = 0, process_time = 0;
static int32_t latency_msec = 0, process_time_msec = 0;
static bool raw = true;
static int file_format = -1;
static uint32_t monitor_stream = PA_INVALID_INDEX;
static uint32_t cork_requests = 0;
/* A shortcut for terminating the application */
static void quit(int ret) {
pa_assert(mainloop_api);
mainloop_api->quit(mainloop_api, ret);
}
/* 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 = NULL;
if (!success) {
pa_log(_("Failed to drain stream: %s"), pa_strerror(pa_context_errno(context)));
quit(1);
}
if (verbose)
pa_log(_("Playback stream drained."));
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)
pa_log(_("Draining connection to server."));
}
}
/* Start draining */
static void start_drain(void) {
if (stream) {
pa_operation *o;
pa_stream_set_write_callback(stream, NULL, NULL);
if (!(o = pa_stream_drain(stream, stream_drain_complete, NULL))) {
pa_log(_("pa_stream_drain(): %s"), pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
pa_operation_unref(o);
} else
quit(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) {
pa_assert(s);
pa_assert(length > 0);
if (raw) {
pa_assert(!sndfile);
if (stdio_event)
mainloop_api->io_enable(stdio_event, PA_IO_EVENT_INPUT);
} else {
sf_count_t bytes;
void *data;
pa_assert(sndfile);
for (;;) {
size_t data_length = length;
if (pa_stream_begin_write(s, &data, &data_length) < 0) {
pa_log(_("pa_stream_begin_write() failed: %s"), pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
if (readf_function) {
size_t k = pa_frame_size(&sample_spec);
if ((bytes = readf_function(sndfile, data, (sf_count_t) (data_length/k))) > 0)
bytes *= (sf_count_t) k;
} else
bytes = sf_read_raw(sndfile, data, (sf_count_t) data_length);
if (bytes > 0)
pa_stream_write(s, data, (size_t) bytes, NULL, 0, PA_SEEK_RELATIVE);
else
pa_stream_cancel_write(s);
/* EOF? */
if (bytes < (sf_count_t) data_length) {
start_drain();
break;
}
/* Request fulfilled */
if ((size_t) bytes >= length)
break;
length -= bytes;
}
}
}
/* This is called whenever new data is available */
static void stream_read_callback(pa_stream *s, size_t length, void *userdata) {
pa_assert(s);
pa_assert(length > 0);
if (raw) {
pa_assert(!sndfile);
if (stdio_event)
mainloop_api->io_enable(stdio_event, PA_IO_EVENT_OUTPUT);
while (pa_stream_readable_size(s) > 0) {
const void *data;
if (pa_stream_peek(s, &data, &length) < 0) {
pa_log(_("pa_stream_peek() failed: %s"), pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
pa_assert(length > 0);
/* If there is a hole in the stream, we generate silence, except
* if it's a passthrough stream in which case we skip the hole. */
if (data || !(flags & PA_STREAM_PASSTHROUGH)) {
buffer = pa_xrealloc(buffer, buffer_index + buffer_length + length);
if (data)
memcpy((uint8_t *) buffer + buffer_index + buffer_length, data, length);
else
pa_silence_memory((uint8_t *) buffer + buffer_index + buffer_length, length, &sample_spec);
buffer_length += length;
}
pa_stream_drop(s);
}
} else {
pa_assert(sndfile);
while (pa_stream_readable_size(s) > 0) {
sf_count_t bytes;
const void *data;
if (pa_stream_peek(s, &data, &length) < 0) {
pa_log(_("pa_stream_peek() failed: %s"), pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
pa_assert(length > 0);
if (!data && (flags & PA_STREAM_PASSTHROUGH)) {
pa_stream_drop(s);
continue;
}
if (!data && length > silence_buffer_length) {
silence_buffer = pa_xrealloc(silence_buffer, length);
pa_silence_memory((uint8_t *) silence_buffer + silence_buffer_length, length - silence_buffer_length, &sample_spec);
silence_buffer_length = length;
}
if (writef_function) {
size_t k = pa_frame_size(&sample_spec);
if ((bytes = writef_function(sndfile, data ? data : silence_buffer, (sf_count_t) (length/k))) > 0)
bytes *= (sf_count_t) k;
} else
bytes = sf_write_raw(sndfile, data ? data : silence_buffer, (sf_count_t) length);
if (bytes < (sf_count_t) length)
quit(1);
pa_stream_drop(s);
}
}
}
/* This routine is called whenever the stream state changes */
static void stream_state_callback(pa_stream *s, void *userdata) {
pa_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];
pa_log(_("Stream successfully created."));
if (!(a = pa_stream_get_buffer_attr(s)))
pa_log(_("pa_stream_get_buffer_attr() failed: %s"), pa_strerror(pa_context_errno(pa_stream_get_context(s))));
else {
if (mode == PLAYBACK)
pa_log(_("Buffer metrics: maxlength=%u, tlength=%u, prebuf=%u, minreq=%u"), a->maxlength, a->tlength, a->prebuf, a->minreq);
else {
pa_assert(mode == RECORD);
pa_log(_("Buffer metrics: maxlength=%u, fragsize=%u"), a->maxlength, a->fragsize);
}
}
pa_log(_("Using sample spec '%s', channel map '%s'."),
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)));
pa_log(_("Connected to device %s (index: %u, suspended: %s)."),
pa_stream_get_device_name(s),
pa_stream_get_device_index(s),
pa_yes_no(pa_stream_is_suspended(s)));
}
break;
case PA_STREAM_FAILED:
default:
pa_log(_("Stream error: %s"), pa_strerror(pa_context_errno(pa_stream_get_context(s))));
quit(1);
}
}
static void stream_suspended_callback(pa_stream *s, void *userdata) {
pa_assert(s);
if (verbose) {
if (pa_stream_is_suspended(s))
pa_log(_("Stream device suspended.%s"), CLEAR_LINE);
else
pa_log(_("Stream device resumed.%s"), CLEAR_LINE);
}
}
static void stream_underflow_callback(pa_stream *s, void *userdata) {
pa_assert(s);
if (verbose)
pa_log(_("Stream underrun.%s"), CLEAR_LINE);
}
static void stream_overflow_callback(pa_stream *s, void *userdata) {
pa_assert(s);
if (verbose)
pa_log(_("Stream overrun.%s"), CLEAR_LINE);
}
static void stream_started_callback(pa_stream *s, void *userdata) {
pa_assert(s);
if (verbose)
pa_log(_("Stream started.%s"), CLEAR_LINE);
}
static void stream_moved_callback(pa_stream *s, void *userdata) {
pa_assert(s);
if (verbose)
pa_log(_("Stream moved to device %s (%u, %ssuspended).%s"), pa_stream_get_device_name(s), pa_stream_get_device_index(s), pa_stream_is_suspended(s) ? "" : _("not "), CLEAR_LINE);
}
static void stream_buffer_attr_callback(pa_stream *s, void *userdata) {
pa_assert(s);
if (verbose)
pa_log(_("Stream buffer attributes changed.%s"), CLEAR_LINE);
}
static void stream_event_callback(pa_stream *s, const char *name, pa_proplist *pl, void *userdata) {
char *t;
pa_assert(s);
pa_assert(name);
pa_assert(pl);
t = pa_proplist_to_string_sep(pl, ", ");
pa_log("Got event '%s', properties '%s'", name, t);
if (pa_streq(name, PA_STREAM_EVENT_REQUEST_CORK)) {
if (cork_requests == 0) {
pa_log(_("Cork request stack is empty: corking stream"));
pa_operation_unref(pa_stream_cork(s, 1, NULL, NULL));
}
cork_requests++;
} else if (pa_streq(name, PA_STREAM_EVENT_REQUEST_UNCORK)) {
if (cork_requests == 1) {
pa_log(_("Cork request stack is empty: uncorking stream"));
pa_operation_unref(pa_stream_cork(s, 0, NULL, NULL));
}
if (cork_requests == 0)
pa_log(_("Warning: Received more uncork requests than cork requests."));
else
cork_requests--;
}
pa_xfree(t);
}
/* This is called whenever the context status changes */
static void context_state_callback(pa_context *c, void *userdata) {
pa_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: {
pa_buffer_attr buffer_attr;
pa_assert(c);
pa_assert(!stream);
if (verbose)
pa_log(_("Connection established.%s"), CLEAR_LINE);
if (!(stream = pa_stream_new_with_proplist(c, NULL, &sample_spec, &channel_map, proplist))) {
pa_log(_("pa_stream_new() failed: %s"), 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);
pa_stream_set_underflow_callback(stream, stream_underflow_callback, NULL);
pa_stream_set_overflow_callback(stream, stream_overflow_callback, NULL);
pa_stream_set_started_callback(stream, stream_started_callback, NULL);
pa_stream_set_event_callback(stream, stream_event_callback, NULL);
pa_stream_set_buffer_attr_callback(stream, stream_buffer_attr_callback, NULL);
pa_zero(buffer_attr);
buffer_attr.maxlength = (uint32_t) -1;
buffer_attr.prebuf = (uint32_t) -1;
if (latency_msec > 0) {
buffer_attr.fragsize = buffer_attr.tlength = pa_usec_to_bytes(latency_msec * PA_USEC_PER_MSEC, &sample_spec);
flags |= PA_STREAM_ADJUST_LATENCY;
} else if (latency > 0) {
buffer_attr.fragsize = buffer_attr.tlength = (uint32_t) latency;
flags |= PA_STREAM_ADJUST_LATENCY;
} else
buffer_attr.fragsize = buffer_attr.tlength = (uint32_t) -1;
if (process_time_msec > 0) {
buffer_attr.minreq = pa_usec_to_bytes(process_time_msec * PA_USEC_PER_MSEC, &sample_spec);
} else if (process_time > 0)
buffer_attr.minreq = (uint32_t) process_time;
else
buffer_attr.minreq = (uint32_t) -1;
if (mode == PLAYBACK) {
pa_cvolume cv;
if (pa_stream_connect_playback(stream, device, &buffer_attr, flags, volume_is_set ? pa_cvolume_set(&cv, sample_spec.channels, volume) : NULL, NULL) < 0) {
pa_log(_("pa_stream_connect_playback() failed: %s"), pa_strerror(pa_context_errno(c)));
goto fail;
}
} else {
if (monitor_stream != PA_INVALID_INDEX && (pa_stream_set_monitor_stream(stream, monitor_stream) < 0)) {
pa_log(_("Failed to set monitor stream: %s"), pa_strerror(pa_context_errno(c)));
goto fail;
}
if (pa_stream_connect_record(stream, device, &buffer_attr, flags) < 0) {
pa_log(_("pa_stream_connect_record() failed: %s"), pa_strerror(pa_context_errno(c)));
goto fail;
}
}
break;
}
case PA_CONTEXT_TERMINATED:
quit(0);
break;
case PA_CONTEXT_FAILED:
default:
pa_log(_("Connection failure: %s"), pa_strerror(pa_context_errno(c)));
goto fail;
}
return;
fail:
quit(1);
}
/* 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) {
uint8_t *buf = NULL;
size_t writable, towrite, r;
pa_assert(a == mainloop_api);
pa_assert(e);
pa_assert(stdio_event == e);
/* Stream not ready? */
if (!stream || pa_stream_get_state(stream) != PA_STREAM_READY ||
!(writable = pa_stream_writable_size(stream))) {
mainloop_api->io_enable(stdio_event, PA_IO_EVENT_NULL);
return;
}
if (pa_stream_begin_write(stream, (void **)&buf, &writable) < 0) {
pa_log(_("pa_stream_begin_write() failed: %s"), pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
/* Partial frame cached from a previous write iteration? */
if (partialframe_len) {
pa_assert(partialframe_len < pa_frame_size(&sample_spec));
memcpy(buf, partialframe_buf, partialframe_len);
}
if ((r = pa_read(fd, buf + partialframe_len, writable - partialframe_len, userdata)) <= 0) {
if (r == 0) {
if (verbose)
pa_log(_("Got EOF."));
start_drain();
} else {
pa_log(_("read() failed: %s"), strerror(errno));
quit(1);
}
mainloop_api->io_free(stdio_event);
stdio_event = NULL;
return;
}
r += partialframe_len;
/* Cache any trailing partial frames for the next write */
towrite = pa_frame_align(r, &sample_spec);
partialframe_len = r - towrite;
if (partialframe_len)
memcpy(partialframe_buf, buf + towrite, partialframe_len);
if (towrite) {
if (pa_stream_write(stream, buf, towrite, NULL, 0, PA_SEEK_RELATIVE) < 0) {
pa_log(_("pa_stream_write() failed: %s"), pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
} else
pa_stream_cancel_write(stream);
}
/* 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;
pa_assert(a == mainloop_api);
pa_assert(e);
pa_assert(stdio_event == e);
if (!buffer) {
mainloop_api->io_enable(stdio_event, PA_IO_EVENT_NULL);
return;
}
pa_assert(buffer_length);
if ((r = pa_write(fd, (uint8_t*) buffer+buffer_index, buffer_length, userdata)) <= 0) {
pa_log(_("write() failed: %s"), strerror(errno));
quit(1);
mainloop_api->io_free(stdio_event);
stdio_event = NULL;
return;
}
buffer_length -= (uint32_t) r;
buffer_index += (uint32_t) r;
if (!buffer_length) {
pa_xfree(buffer);
buffer = NULL;
buffer_length = buffer_index = 0;
}
}
/* UNIX signal to quit received */
static void exit_signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
if (verbose)
pa_log(_("Got signal, exiting."));
quit(0);
}
/* Show the current latency */
static void stream_update_timing_callback(pa_stream *s, int success, void *userdata) {
pa_usec_t l, usec;
int negative = 0;
pa_assert(s);
if (!success ||
pa_stream_get_time(s, &usec) < 0 ||
pa_stream_get_latency(s, &l, &negative) < 0) {
pa_log(_("Failed to get latency: %s"), pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
fprintf(stderr, _("Time: %0.3f sec; Latency: %0.0f usec."),
(float) usec / 1000000,
(float) l * (negative?-1.0f:1.0f));
fprintf(stderr, " \r");
}
#ifdef SIGUSR1
/* 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));
}
#endif
static void time_event_callback(pa_mainloop_api *m, pa_time_event *e, const struct timeval *t, void *userdata) {
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)))
pa_log(_("pa_stream_update_timing_info() failed: %s"), pa_strerror(pa_context_errno(context)));
else
pa_operation_unref(o);
}
pa_context_rttime_restart(context, e, pa_rtclock_now() + TIME_EVENT_USEC);
}
static void help(const char *argv0) {
printf(_("%s [options]\n"
"%s\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"
" The special names @DEFAULT_SINK@, @DEFAULT_SOURCE@ and\n"
" @DEFAULT_MONITOR@ can be used to specify the default sink,\n"
" source and monitor respectively.\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 format, see\n"
" https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/SupportedAudioFormats/\n"
" for possible values (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/source the stream is\n"
" being connected to.\n"
" --fix-rate Take the sampling rate from the sink/source the stream is\n"
" being connected to.\n"
" --fix-channels Take the number of channels and the channel map\n"
" from the sink/source 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"
" --latency=BYTES Request the specified latency in bytes.\n"
" --process-time=BYTES Request the specified process time per request in bytes.\n"
" --latency-msec=MSEC Request the specified latency in msec.\n"
" --process-time-msec=MSEC Request the specified process time per request in msec.\n"
" --property=PROPERTY=VALUE Set the specified property to the specified value.\n"
" --raw Record/play raw PCM data.\n"
" --passthrough Passthrough data.\n"
" --file-format[=FFORMAT] Record/play formatted PCM data.\n"
" --list-file-formats List available file formats.\n"
" --monitor-stream=INDEX Record from the sink input with index INDEX.\n")
, argv0, purpose);
}
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,
ARG_LATENCY,
ARG_PROCESS_TIME,
ARG_RAW,
ARG_PASSTHROUGH,
ARG_PROPERTY,
ARG_FILE_FORMAT,
ARG_LIST_FILE_FORMATS,
ARG_LATENCY_MSEC,
ARG_PROCESS_TIME_MSEC,
ARG_MONITOR_STREAM,
};
int main(int argc, char *argv[]) {
pa_mainloop* m = NULL;
int ret = 1, c;
char *bn, *server = NULL;
pa_time_event *time_event = NULL;
const char *filename = NULL;
/* type for pa_read/_write. passed as userdata to the callbacks */
unsigned long type = 0;
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},
{"latency", 1, NULL, ARG_LATENCY},
{"process-time", 1, NULL, ARG_PROCESS_TIME},
{"property", 1, NULL, ARG_PROPERTY},
{"raw", 0, NULL, ARG_RAW},
{"passthrough", 0, NULL, ARG_PASSTHROUGH},
{"file-format", 2, NULL, ARG_FILE_FORMAT},
{"list-file-formats", 0, NULL, ARG_LIST_FILE_FORMATS},
{"latency-msec", 1, NULL, ARG_LATENCY_MSEC},
{"process-time-msec", 1, NULL, ARG_PROCESS_TIME_MSEC},
{"monitor-stream", 1, NULL, ARG_MONITOR_STREAM},
{NULL, 0, NULL, 0}
};
setlocale(LC_ALL, "");
#ifdef ENABLE_NLS
bindtextdomain(GETTEXT_PACKAGE, PULSE_LOCALEDIR);
#endif
bn = pa_path_get_filename(argv[0]);
if (strstr(bn, "play")) {
mode = PLAYBACK;
raw = false;
purpose = _("Play back encoded audio files on a PulseAudio sound server.");
} else if (strstr(bn, "record")) {
mode = RECORD;
raw = false;
purpose = _("Capture audio data from a PulseAudio sound server and write it to a file.");
} else if (strstr(bn, "rec") || strstr(bn, "mon")) {
mode = RECORD;
raw = true;
purpose = _("Capture audio data from a PulseAudio sound server and write it to STDOUT or the specified file.");
} else { /* pacat */
mode = PLAYBACK;
raw = true;
purpose = _("Play back audio data from STDIN or the specified file on a PulseAudio sound server.");
}
proplist = pa_proplist_new();
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 %s\n"
"Compiled with libpulse %s\n"
"Linked with libpulse %s\n"),
PACKAGE_VERSION,
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': {
char *t;
if (!(t = pa_locale_to_utf8(optarg)) ||
pa_proplist_sets(proplist, PA_PROP_APPLICATION_NAME, t) < 0) {
pa_log(_("Invalid client name '%s'"), t ? t : optarg);
pa_xfree(t);
goto quit;
}
pa_xfree(t);
break;
}
case ARG_STREAM_NAME: {
char *t;
if (!(t = pa_locale_to_utf8(optarg)) ||
pa_proplist_sets(proplist, PA_PROP_MEDIA_NAME, t) < 0) {
pa_log(_("Invalid stream name '%s'"), t ? t : optarg);
pa_xfree(t);
goto quit;
}
pa_xfree(t);
break;
}
case 'v':
verbose = 1;
break;
case ARG_VOLUME: {
int v = atoi(optarg);
volume = v < 0 ? 0U : (pa_volume_t) v;
volume_is_set = true;
break;
}
case ARG_CHANNELS:
sample_spec.channels = (uint8_t) atoi(optarg);
sample_spec_set = true;
break;
case ARG_SAMPLEFORMAT:
sample_spec.format = pa_parse_sample_format(optarg);
sample_spec_set = true;
break;
case ARG_SAMPLERATE:
sample_spec.rate = (uint32_t) atoi(optarg);
sample_spec_set = true;
break;
case ARG_CHANNELMAP:
if (!pa_channel_map_parse(&channel_map, optarg)) {
pa_log(_("Invalid channel map '%s'"), optarg);
goto quit;
}
channel_map_set = true;
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;
case ARG_LATENCY:
if (((latency = (size_t) atoi(optarg))) <= 0) {
pa_log(_("Invalid latency specification '%s'"), optarg);
goto quit;
}
break;
case ARG_PROCESS_TIME:
if (((process_time = (size_t) atoi(optarg))) <= 0) {
pa_log(_("Invalid process time specification '%s'"), optarg);
goto quit;
}
break;
case ARG_LATENCY_MSEC:
if (((latency_msec = (int32_t) atoi(optarg))) <= 0) {
pa_log(_("Invalid latency specification '%s'"), optarg);
goto quit;
}
break;
case ARG_PROCESS_TIME_MSEC:
if (((process_time_msec = (int32_t) atoi(optarg))) <= 0) {
pa_log(_("Invalid process time specification '%s'"), optarg);
goto quit;
}
break;
case ARG_PROPERTY: {
char *t;
if (!(t = pa_locale_to_utf8(optarg)) ||
pa_proplist_setp(proplist, t) < 0) {
pa_xfree(t);
pa_log(_("Invalid property '%s'"), optarg);
goto quit;
}
pa_xfree(t);
break;
}
case ARG_RAW:
raw = true;
break;
case ARG_PASSTHROUGH:
flags |= PA_STREAM_PASSTHROUGH;
break;
case ARG_FILE_FORMAT:
if (optarg) {
if ((file_format = pa_sndfile_format_from_string(optarg)) < 0) {
pa_log(_("Unknown file format %s."), optarg);
goto quit;
}
}
raw = false;
break;
case ARG_LIST_FILE_FORMATS:
pa_sndfile_dump_formats();
ret = 0;
goto quit;
case ARG_MONITOR_STREAM:
if (pa_atou(optarg, &monitor_stream) < 0) {
pa_log(_("Failed to parse the argument for --monitor-stream"));
goto quit;
}
break;
default:
goto quit;
}
}
if (!pa_sample_spec_valid(&sample_spec)) {
pa_log(_("Invalid sample specification"));
goto quit;
}
if (optind+1 == argc) {
int fd;
filename = argv[optind];
if ((fd = pa_open_cloexec(argv[optind], mode == PLAYBACK ? O_RDONLY : O_WRONLY|O_TRUNC|O_CREAT, 0666)) < 0) {
pa_log(_("open(): %s"), strerror(errno));
goto quit;
}
if (dup2(fd, mode == PLAYBACK ? STDIN_FILENO : STDOUT_FILENO) < 0) {
pa_log(_("dup2(): %s"), strerror(errno));
goto quit;
}
pa_close(fd);
} else if (optind+1 <= argc) {
pa_log(_("Too many arguments."));
goto quit;
}
if (!raw) {
SF_INFO sfi;
pa_zero(sfi);
if (mode == RECORD) {
/* This might patch up the sample spec */
if (pa_sndfile_write_sample_spec(&sfi, &sample_spec) < 0) {
pa_log(_("Failed to generate sample specification for file."));
goto quit;
}
if (file_format <= 0) {
char *extension;
if (filename && (extension = strrchr(filename, '.')))
file_format = pa_sndfile_format_from_string(extension+1);
if (file_format <= 0)
file_format = SF_FORMAT_WAV;
/* Transparently upgrade classic .wav to wavex for multichannel audio */
if (file_format == SF_FORMAT_WAV &&
(sample_spec.channels > 2 ||
(channel_map_set &&
!(sample_spec.channels == 1 && channel_map.map[0] == PA_CHANNEL_POSITION_MONO) &&
!(sample_spec.channels == 2 && channel_map.map[0] == PA_CHANNEL_POSITION_LEFT
&& channel_map.map[1] == PA_CHANNEL_POSITION_RIGHT))))
file_format = SF_FORMAT_WAVEX;
}
sfi.format |= file_format;
/*
* Endianness has been set in pa_sndfile_write_sample_spec(), but
* libsndfile errors out if endianness is set to anything other than
* SF_ENDIAN_FILE for OGG or FLAC. Clear it.
* For OGG, libsndfile accepts only subformat SF_FORMAT_VORBIS.
*/
if (file_format == SF_FORMAT_OGG || file_format == SF_FORMAT_FLAC)
sfi.format = (sfi.format & ~SF_FORMAT_ENDMASK) | SF_ENDIAN_FILE;
if (file_format == SF_FORMAT_OGG)
sfi.format = (sfi.format & ~SF_FORMAT_SUBMASK) | SF_FORMAT_VORBIS;
}
if (!(sndfile = sf_open_fd(mode == RECORD ? STDOUT_FILENO : STDIN_FILENO,
mode == RECORD ? SFM_WRITE : SFM_READ,
&sfi, 0))) {
pa_log(_("Failed to open audio file."));
goto quit;
}
if (mode == PLAYBACK) {
if (sample_spec_set)
pa_log(_("Warning: specified sample specification will be overwritten with specification from file."));
if (pa_sndfile_read_sample_spec(sndfile, &sample_spec) < 0) {
pa_log(_("Failed to determine sample specification from file."));
goto quit;
}
sample_spec_set = true;
if (!channel_map_set) {
/* Allow the user to overwrite the channel map on the command line */
if (pa_sndfile_read_channel_map(sndfile, &channel_map) < 0) {
if (sample_spec.channels > 2)
pa_log(_("Warning: Failed to determine channel map from file."));
} else
channel_map_set = true;
}
}
}
if (!channel_map_set)
pa_channel_map_init_extend(&channel_map, sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
if (!pa_channel_map_compatible(&channel_map, &sample_spec)) {
pa_log(_("Channel map doesn't match sample specification"));
goto quit;
}
if (!raw) {
pa_proplist *sfp;
if (mode == PLAYBACK)
readf_function = pa_sndfile_readf_function(&sample_spec);
else {
if (pa_sndfile_write_channel_map(sndfile, &channel_map) < 0)
pa_log(_("Warning: failed to write channel map to file."));
writef_function = pa_sndfile_writef_function(&sample_spec);
}
/* Fill in libsndfile prop list data */
sfp = pa_proplist_new();
pa_sndfile_init_proplist(sndfile, sfp);
pa_proplist_update(proplist, PA_UPDATE_MERGE, sfp);
pa_proplist_free(sfp);
}
if (verbose) {
char tss[PA_SAMPLE_SPEC_SNPRINT_MAX], tcm[PA_CHANNEL_MAP_SNPRINT_MAX];
pa_log(_("Opening a %s stream with sample specification '%s' and channel map '%s'."),
mode == RECORD ? _("recording") : _("playback"),
pa_sample_spec_snprint(tss, sizeof(tss), &sample_spec),
pa_channel_map_snprint(tcm, sizeof(tcm), &channel_map));
}
/* Fill in client name if none was set */
if (!pa_proplist_contains(proplist, PA_PROP_APPLICATION_NAME)) {
char *t;
if ((t = pa_locale_to_utf8(bn))) {
pa_proplist_sets(proplist, PA_PROP_APPLICATION_NAME, t);
pa_xfree(t);
}
}
/* Fill in media name if none was set */
if (!pa_proplist_contains(proplist, PA_PROP_MEDIA_NAME)) {
const char *t;
if ((t = filename) ||
(t = pa_proplist_gets(proplist, PA_PROP_APPLICATION_NAME)))
pa_proplist_sets(proplist, PA_PROP_MEDIA_NAME, t);
if (!pa_proplist_contains(proplist, PA_PROP_MEDIA_NAME)) {
pa_log(_("Failed to set media name."));
goto quit;
}
}
if (raw && mode == PLAYBACK)
partialframe_buf = pa_xmalloc(pa_frame_size(&sample_spec));
/* Set up a new main loop */
if (!(m = pa_mainloop_new())) {
pa_log(_("pa_mainloop_new() failed."));
goto quit;
}
mainloop_api = pa_mainloop_get_api(m);
pa_assert_se(pa_signal_init(mainloop_api) == 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
pa_disable_sigpipe();
if (raw) {
#ifdef OS_IS_WIN32
/* need to turn on binary mode for stdio io. Windows, meh */
setmode(mode == PLAYBACK ? STDIN_FILENO : STDOUT_FILENO, O_BINARY);
#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, &type))) {
pa_log(_("io_new() failed."));
goto quit;
}
}
/* Create a new connection context */
if (!(context = pa_context_new_with_proplist(mainloop_api, NULL, proplist))) {
pa_log(_("pa_context_new() failed."));
goto quit;
}
pa_context_set_state_callback(context, context_state_callback, NULL);
/* Connect the context */
if (pa_context_connect(context, server, 0, NULL) < 0) {
pa_log(_("pa_context_connect() failed: %s"), pa_strerror(pa_context_errno(context)));
goto quit;
}
if (verbose) {
if (!(time_event = pa_context_rttime_new(context, pa_rtclock_now() + TIME_EVENT_USEC, time_event_callback, NULL))) {
pa_log(_("pa_context_rttime_new() failed."));
goto quit;
}
}
/* Run the main loop */
if (pa_mainloop_run(m, &ret) < 0) {
pa_log(_("pa_mainloop_run() failed."));
goto quit;
}
quit:
if (stream)
pa_stream_unref(stream);
if (context)
pa_context_unref(context);
if (stdio_event) {
pa_assert(mainloop_api);
mainloop_api->io_free(stdio_event);
}
if (time_event) {
pa_assert(mainloop_api);
mainloop_api->time_free(time_event);
}
if (m) {
pa_signal_done();
pa_mainloop_free(m);
}
pa_xfree(silence_buffer);
pa_xfree(buffer);
pa_xfree(partialframe_buf);
pa_xfree(server);
pa_xfree(device);
if (sndfile)
sf_close(sndfile);
if (proplist)
pa_proplist_free(proplist);
return ret;
}
Reference in a new issue View git blame Copy permalink