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Diffstat (limited to '')
| -rw-r--r-- | src/utils/pacat.c | 1251 |
1 files changed, 1251 insertions, 0 deletions
diff --git a/src/utils/pacat.c b/src/utils/pacat.c new file mode 100644 index 0000000..4d2ecf7 --- /dev/null +++ b/src/utils/pacat.c @@ -0,0 +1,1251 @@ +/*** + 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" + " -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; + } + + 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; +} |