output/*: move to output/plugins/

1 files changed, 0 insertions, 765 deletions

diff --git a/src/output/JackOutputPlugin.cxx b/src/output/JackOutputPlugin.cxx
deleted file mode 100644
index c65ae5225..000000000
--- a/src/output/JackOutputPlugin.cxx
+++ /dev/null
@@ -1,765 +0,0 @@
-/*
- * Copyright (C) 2003-2014 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-#include "JackOutputPlugin.hxx"
-#include "OutputAPI.hxx"
-#include "ConfigError.hxx"
-#include "util/Error.hxx"
-#include "util/Domain.hxx"
-#include "Log.hxx"
-
-#include <assert.h>
-
-#include <glib.h>
-#include <jack/jack.h>
-#include <jack/types.h>
-#include <jack/ringbuffer.h>
-
-#include <stdlib.h>
-#include <string.h>
-
-enum {
-	MAX_PORTS = 16,
-};
-
-static const size_t jack_sample_size = sizeof(jack_default_audio_sample_t);
-
-struct JackOutput {
-	struct audio_output base;
-
-	/**
-	 * libjack options passed to jack_client_open().
-	 */
-	jack_options_t options;
-
-	const char *name;
-
-	const char *server_name;
-
-	/* configuration */
-
-	char *source_ports[MAX_PORTS];
-	unsigned num_source_ports;
-
-	char *destination_ports[MAX_PORTS];
-	unsigned num_destination_ports;
-
-	size_t ringbuffer_size;
-
-	/* the current audio format */
-	AudioFormat audio_format;
-
-	/* jack library stuff */
-	jack_port_t *ports[MAX_PORTS];
-	jack_client_t *client;
-	jack_ringbuffer_t *ringbuffer[MAX_PORTS];
-
-	bool shutdown;
-
-	/**
-	 * While this flag is set, the "process" callback generates
-	 * silence.
-	 */
-	bool pause;
-
-	bool Initialize(const config_param &param, Error &error_r) {
-		return ao_base_init(&base, &jack_output_plugin, param,
-				    error_r);
-	}
-
-	void Deinitialize() {
-		ao_base_finish(&base);
-	}
-};
-
-static constexpr Domain jack_output_domain("jack_output");
-
-/**
- * Determine the number of frames guaranteed to be available on all
- * channels.
- */
-static jack_nframes_t
-mpd_jack_available(const JackOutput *jd)
-{
-	size_t min = jack_ringbuffer_read_space(jd->ringbuffer[0]);
-
-	for (unsigned i = 1; i < jd->audio_format.channels; ++i) {
-		size_t current = jack_ringbuffer_read_space(jd->ringbuffer[i]);
-		if (current < min)
-			min = current;
-	}
-
-	assert(min % jack_sample_size == 0);
-
-	return min / jack_sample_size;
-}
-
-static int
-mpd_jack_process(jack_nframes_t nframes, void *arg)
-{
-	JackOutput *jd = (JackOutput *) arg;
-
-	if (nframes <= 0)
-		return 0;
-
-	if (jd->pause) {
-		/* empty the ring buffers */
-
-		const jack_nframes_t available = mpd_jack_available(jd);
-		for (unsigned i = 0; i < jd->audio_format.channels; ++i)
-			jack_ringbuffer_read_advance(jd->ringbuffer[i],
-						     available * jack_sample_size);
-
-		/* generate silence while MPD is paused */
-
-		for (unsigned i = 0; i < jd->audio_format.channels; ++i) {
-			jack_default_audio_sample_t *out =
-				(jack_default_audio_sample_t *)
-				jack_port_get_buffer(jd->ports[i], nframes);
-
-			for (jack_nframes_t f = 0; f < nframes; ++f)
-				out[f] = 0.0;
-		}
-
-		return 0;
-	}
-
-	jack_nframes_t available = mpd_jack_available(jd);
-	if (available > nframes)
-		available = nframes;
-
-	for (unsigned i = 0; i < jd->audio_format.channels; ++i) {
-		jack_default_audio_sample_t *out =
-			(jack_default_audio_sample_t *)
-			jack_port_get_buffer(jd->ports[i], nframes);
-		if (out == nullptr)
-			/* workaround for libjack1 bug: if the server
-			   connection fails, the process callback is
-			   invoked anyway, but unable to get a
-			   buffer */
-			continue;
-
-		jack_ringbuffer_read(jd->ringbuffer[i],
-				     (char *)out, available * jack_sample_size);
-
-		for (jack_nframes_t f = available; f < nframes; ++f)
-			/* ringbuffer underrun, fill with silence */
-			out[f] = 0.0;
-	}
-
-	/* generate silence for the unused source ports */
-
-	for (unsigned i = jd->audio_format.channels;
-	     i < jd->num_source_ports; ++i) {
-		jack_default_audio_sample_t *out =
-			(jack_default_audio_sample_t *)
-			jack_port_get_buffer(jd->ports[i], nframes);
-		if (out == nullptr)
-			/* workaround for libjack1 bug: if the server
-			   connection fails, the process callback is
-			   invoked anyway, but unable to get a
-			   buffer */
-			continue;
-
-		for (jack_nframes_t f = 0; f < nframes; ++f)
-			out[f] = 0.0;
-	}
-
-	return 0;
-}
-
-static void
-mpd_jack_shutdown(void *arg)
-{
-	JackOutput *jd = (JackOutput *) arg;
-	jd->shutdown = true;
-}
-
-static void
-set_audioformat(JackOutput *jd, AudioFormat &audio_format)
-{
-	audio_format.sample_rate = jack_get_sample_rate(jd->client);
-
-	if (jd->num_source_ports == 1)
-		audio_format.channels = 1;
-	else if (audio_format.channels > jd->num_source_ports)
-		audio_format.channels = 2;
-
-	if (audio_format.format != SampleFormat::S16 &&
-	    audio_format.format != SampleFormat::S24_P32)
-		audio_format.format = SampleFormat::S24_P32;
-}
-
-static void
-mpd_jack_error(const char *msg)
-{
-	LogError(jack_output_domain, msg);
-}
-
-#ifdef HAVE_JACK_SET_INFO_FUNCTION
-static void
-mpd_jack_info(const char *msg)
-{
-	LogDefault(jack_output_domain, msg);
-}
-#endif
-
-/**
- * Disconnect the JACK client.
- */
-static void
-mpd_jack_disconnect(JackOutput *jd)
-{
-	assert(jd != nullptr);
-	assert(jd->client != nullptr);
-
-	jack_deactivate(jd->client);
-	jack_client_close(jd->client);
-	jd->client = nullptr;
-}
-
-/**
- * Connect the JACK client and performs some basic setup
- * (e.g. register callbacks).
- */
-static bool
-mpd_jack_connect(JackOutput *jd, Error &error)
-{
-	jack_status_t status;
-
-	assert(jd != nullptr);
-
-	jd->shutdown = false;
-
-	jd->client = jack_client_open(jd->name, jd->options, &status,
-				      jd->server_name);
-	if (jd->client == nullptr) {
-		error.Format(jack_output_domain, status,
-			     "Failed to connect to JACK server, status=%d",
-			     status);
-		return false;
-	}
-
-	jack_set_process_callback(jd->client, mpd_jack_process, jd);
-	jack_on_shutdown(jd->client, mpd_jack_shutdown, jd);
-
-	for (unsigned i = 0; i < jd->num_source_ports; ++i) {
-		jd->ports[i] = jack_port_register(jd->client,
-						  jd->source_ports[i],
-						  JACK_DEFAULT_AUDIO_TYPE,
-						  JackPortIsOutput, 0);
-		if (jd->ports[i] == nullptr) {
-			error.Format(jack_output_domain,
-				     "Cannot register output port \"%s\"",
-				     jd->source_ports[i]);
-			mpd_jack_disconnect(jd);
-			return false;
-		}
-	}
-
-	return true;
-}
-
-static bool
-mpd_jack_test_default_device(void)
-{
-	return true;
-}
-
-static unsigned
-parse_port_list(const char *source, char **dest, Error &error)
-{
-	char **list = g_strsplit(source, ",", 0);
-	unsigned n = 0;
-
-	for (n = 0; list[n] != nullptr; ++n) {
-		if (n >= MAX_PORTS) {
-			error.Set(config_domain,
-				  "too many port names");
-			return 0;
-		}
-
-		dest[n] = list[n];
-	}
-
-	g_free(list);
-
-	if (n == 0) {
-		error.Format(config_domain,
-			     "at least one port name expected");
-		return 0;
-	}
-
-	return n;
-}
-
-static struct audio_output *
-mpd_jack_init(const config_param &param, Error &error)
-{
-	JackOutput *jd = new JackOutput();
-
-	if (!jd->Initialize(param, error)) {
-		delete jd;
-		return nullptr;
-	}
-
-	const char *value;
-
-	jd->options = JackNullOption;
-
-	jd->name = param.GetBlockValue("client_name", nullptr);
-	if (jd->name != nullptr)
-		jd->options = jack_options_t(jd->options | JackUseExactName);
-	else
-		/* if there's a no configured client name, we don't
-		   care about the JackUseExactName option */
-		jd->name = "Music Player Daemon";
-
-	jd->server_name = param.GetBlockValue("server_name", nullptr);
-	if (jd->server_name != nullptr)
-		jd->options = jack_options_t(jd->options | JackServerName);
-
-	if (!param.GetBlockValue("autostart", false))
-		jd->options = jack_options_t(jd->options | JackNoStartServer);
-
-	/* configure the source ports */
-
-	value = param.GetBlockValue("source_ports", "left,right");
-	jd->num_source_ports = parse_port_list(value,
-					       jd->source_ports, error);
-	if (jd->num_source_ports == 0)
-		return nullptr;
-
-	/* configure the destination ports */
-
-	value = param.GetBlockValue("destination_ports", nullptr);
-	if (value == nullptr) {
-		/* compatibility with MPD < 0.16 */
-		value = param.GetBlockValue("ports", nullptr);
-		if (value != nullptr)
-			FormatWarning(jack_output_domain,
-				      "deprecated option 'ports' in line %d",
-				      param.line);
-	}
-
-	if (value != nullptr) {
-		jd->num_destination_ports =
-			parse_port_list(value,
-					jd->destination_ports, error);
-		if (jd->num_destination_ports == 0)
-			return nullptr;
-	} else {
-		jd->num_destination_ports = 0;
-	}
-
-	if (jd->num_destination_ports > 0 &&
-	    jd->num_destination_ports != jd->num_source_ports)
-		FormatWarning(jack_output_domain,
-			      "number of source ports (%u) mismatches the "
-			      "number of destination ports (%u) in line %d",
-			      jd->num_source_ports, jd->num_destination_ports,
-			      param.line);
-
-	jd->ringbuffer_size = param.GetBlockValue("ringbuffer_size", 32768u);
-
-	jack_set_error_function(mpd_jack_error);
-
-#ifdef HAVE_JACK_SET_INFO_FUNCTION
-	jack_set_info_function(mpd_jack_info);
-#endif
-
-	return &jd->base;
-}
-
-static void
-mpd_jack_finish(struct audio_output *ao)
-{
-	JackOutput *jd = (JackOutput *)ao;
-
-	for (unsigned i = 0; i < jd->num_source_ports; ++i)
-		g_free(jd->source_ports[i]);
-
-	for (unsigned i = 0; i < jd->num_destination_ports; ++i)
-		g_free(jd->destination_ports[i]);
-
-	jd->Deinitialize();
-	delete jd;
-}
-
-static bool
-mpd_jack_enable(struct audio_output *ao, Error &error)
-{
-	JackOutput *jd = (JackOutput *)ao;
-
-	for (unsigned i = 0; i < jd->num_source_ports; ++i)
-		jd->ringbuffer[i] = nullptr;
-
-	return mpd_jack_connect(jd, error);
-}
-
-static void
-mpd_jack_disable(struct audio_output *ao)
-{
-	JackOutput *jd = (JackOutput *)ao;
-
-	if (jd->client != nullptr)
-		mpd_jack_disconnect(jd);
-
-	for (unsigned i = 0; i < jd->num_source_ports; ++i) {
-		if (jd->ringbuffer[i] != nullptr) {
-			jack_ringbuffer_free(jd->ringbuffer[i]);
-			jd->ringbuffer[i] = nullptr;
-		}
-	}
-}
-
-/**
- * Stops the playback on the JACK connection.
- */
-static void
-mpd_jack_stop(JackOutput *jd)
-{
-	assert(jd != nullptr);
-
-	if (jd->client == nullptr)
-		return;
-
-	if (jd->shutdown)
-		/* the connection has failed; close it */
-		mpd_jack_disconnect(jd);
-	else
-		/* the connection is alive: just stop playback */
-		jack_deactivate(jd->client);
-}
-
-static bool
-mpd_jack_start(JackOutput *jd, Error &error)
-{
-	const char *destination_ports[MAX_PORTS], **jports;
-	const char *duplicate_port = nullptr;
-	unsigned num_destination_ports;
-
-	assert(jd->client != nullptr);
-	assert(jd->audio_format.channels <= jd->num_source_ports);
-
-	/* allocate the ring buffers on the first open(); these
-	   persist until MPD exits.  It's too unsafe to delete them
-	   because we can never know when mpd_jack_process() gets
-	   called */
-	for (unsigned i = 0; i < jd->num_source_ports; ++i) {
-		if (jd->ringbuffer[i] == nullptr)
-			jd->ringbuffer[i] =
-				jack_ringbuffer_create(jd->ringbuffer_size);
-
-		/* clear the ring buffer to be sure that data from
-		   previous playbacks are gone */
-		jack_ringbuffer_reset(jd->ringbuffer[i]);
-	}
-
-	if ( jack_activate(jd->client) ) {
-		error.Set(jack_output_domain, "cannot activate client");
-		mpd_jack_stop(jd);
-		return false;
-	}
-
-	if (jd->num_destination_ports == 0) {
-		/* no output ports were configured - ask libjack for
-		   defaults */
-		jports = jack_get_ports(jd->client, nullptr, nullptr,
-					JackPortIsPhysical | JackPortIsInput);
-		if (jports == nullptr) {
-			error.Set(jack_output_domain, "no ports found");
-			mpd_jack_stop(jd);
-			return false;
-		}
-
-		assert(*jports != nullptr);
-
-		for (num_destination_ports = 0;
-		     num_destination_ports < MAX_PORTS &&
-			     jports[num_destination_ports] != nullptr;
-		     ++num_destination_ports) {
-			FormatDebug(jack_output_domain,
-				    "destination_port[%u] = '%s'\n",
-				    num_destination_ports,
-				    jports[num_destination_ports]);
-			destination_ports[num_destination_ports] =
-				jports[num_destination_ports];
-		}
-	} else {
-		/* use the configured output ports */
-
-		num_destination_ports = jd->num_destination_ports;
-		memcpy(destination_ports, jd->destination_ports,
-		       num_destination_ports * sizeof(*destination_ports));
-
-		jports = nullptr;
-	}
-
-	assert(num_destination_ports > 0);
-
-	if (jd->audio_format.channels >= 2 && num_destination_ports == 1) {
-		/* mix stereo signal on one speaker */
-
-		while (num_destination_ports < jd->audio_format.channels)
-			destination_ports[num_destination_ports++] =
-				destination_ports[0];
-	} else if (num_destination_ports > jd->audio_format.channels) {
-		if (jd->audio_format.channels == 1 && num_destination_ports > 2) {
-			/* mono input file: connect the one source
-			   channel to the both destination channels */
-			duplicate_port = destination_ports[1];
-			num_destination_ports = 1;
-		} else
-			/* connect only as many ports as we need */
-			num_destination_ports = jd->audio_format.channels;
-	}
-
-	assert(num_destination_ports <= jd->num_source_ports);
-
-	for (unsigned i = 0; i < num_destination_ports; ++i) {
-		int ret;
-
-		ret = jack_connect(jd->client, jack_port_name(jd->ports[i]),
-				   destination_ports[i]);
-		if (ret != 0) {
-			error.Format(jack_output_domain,
-				     "Not a valid JACK port: %s",
-				     destination_ports[i]);
-
-			if (jports != nullptr)
-				free(jports);
-
-			mpd_jack_stop(jd);
-			return false;
-		}
-	}
-
-	if (duplicate_port != nullptr) {
-		/* mono input file: connect the one source channel to
-		   the both destination channels */
-		int ret;
-
-		ret = jack_connect(jd->client, jack_port_name(jd->ports[0]),
-				   duplicate_port);
-		if (ret != 0) {
-			error.Format(jack_output_domain,
-				     "Not a valid JACK port: %s",
-				     duplicate_port);
-
-			if (jports != nullptr)
-				free(jports);
-
-			mpd_jack_stop(jd);
-			return false;
-		}
-	}
-
-	if (jports != nullptr)
-		free(jports);
-
-	return true;
-}
-
-static bool
-mpd_jack_open(struct audio_output *ao, AudioFormat &audio_format,
-	      Error &error)
-{
-	JackOutput *jd = (JackOutput *)ao;
-
-	assert(jd != nullptr);
-
-	jd->pause = false;
-
-	if (jd->client != nullptr && jd->shutdown)
-		mpd_jack_disconnect(jd);
-
-	if (jd->client == nullptr && !mpd_jack_connect(jd, error))
-		return false;
-
-	set_audioformat(jd, audio_format);
-	jd->audio_format = audio_format;
-
-	if (!mpd_jack_start(jd, error))
-		return false;
-
-	return true;
-}
-
-static void
-mpd_jack_close(gcc_unused struct audio_output *ao)
-{
-	JackOutput *jd = (JackOutput *)ao;
-
-	mpd_jack_stop(jd);
-}
-
-static unsigned
-mpd_jack_delay(struct audio_output *ao)
-{
-	JackOutput *jd = (JackOutput *)ao;
-
-	return jd->base.pause && jd->pause && !jd->shutdown
-		? 1000
-		: 0;
-}
-
-static inline jack_default_audio_sample_t
-sample_16_to_jack(int16_t sample)
-{
-	return sample / (jack_default_audio_sample_t)(1 << (16 - 1));
-}
-
-static void
-mpd_jack_write_samples_16(JackOutput *jd, const int16_t *src,
-			  unsigned num_samples)
-{
-	jack_default_audio_sample_t sample;
-	unsigned i;
-
-	while (num_samples-- > 0) {
-		for (i = 0; i < jd->audio_format.channels; ++i) {
-			sample = sample_16_to_jack(*src++);
-			jack_ringbuffer_write(jd->ringbuffer[i],
-					      (const char *)&sample,
-					      sizeof(sample));
-		}
-	}
-}
-
-static inline jack_default_audio_sample_t
-sample_24_to_jack(int32_t sample)
-{
-	return sample / (jack_default_audio_sample_t)(1 << (24 - 1));
-}
-
-static void
-mpd_jack_write_samples_24(JackOutput *jd, const int32_t *src,
-			  unsigned num_samples)
-{
-	jack_default_audio_sample_t sample;
-	unsigned i;
-
-	while (num_samples-- > 0) {
-		for (i = 0; i < jd->audio_format.channels; ++i) {
-			sample = sample_24_to_jack(*src++);
-			jack_ringbuffer_write(jd->ringbuffer[i],
-					      (const char *)&sample,
-					      sizeof(sample));
-		}
-	}
-}
-
-static void
-mpd_jack_write_samples(JackOutput *jd, const void *src,
-		       unsigned num_samples)
-{
-	switch (jd->audio_format.format) {
-	case SampleFormat::S16:
-		mpd_jack_write_samples_16(jd, (const int16_t*)src,
-					  num_samples);
-		break;
-
-	case SampleFormat::S24_P32:
-		mpd_jack_write_samples_24(jd, (const int32_t*)src,
-					  num_samples);
-		break;
-
-	default:
-		assert(false);
-		gcc_unreachable();
-	}
-}
-
-static size_t
-mpd_jack_play(struct audio_output *ao, const void *chunk, size_t size,
-	      Error &error)
-{
-	JackOutput *jd = (JackOutput *)ao;
-	const size_t frame_size = jd->audio_format.GetFrameSize();
-	size_t space = 0, space1;
-
-	jd->pause = false;
-
-	assert(size % frame_size == 0);
-	size /= frame_size;
-
-	while (true) {
-		if (jd->shutdown) {
-			error.Set(jack_output_domain,
-				  "Refusing to play, because "
-				  "there is no client thread");
-			return 0;
-		}
-
-		space = jack_ringbuffer_write_space(jd->ringbuffer[0]);
-		for (unsigned i = 1; i < jd->audio_format.channels; ++i) {
-			space1 = jack_ringbuffer_write_space(jd->ringbuffer[i]);
-			if (space > space1)
-				/* send data symmetrically */
-				space = space1;
-		}
-
-		if (space >= jack_sample_size)
-			break;
-
-		/* XXX do something more intelligent to
-		   synchronize */
-		g_usleep(1000);
-	}
-
-	space /= jack_sample_size;
-	if (space < size)
-		size = space;
-
-	mpd_jack_write_samples(jd, chunk, size);
-	return size * frame_size;
-}
-
-static bool
-mpd_jack_pause(struct audio_output *ao)
-{
-	JackOutput *jd = (JackOutput *)ao;
-
-	if (jd->shutdown)
-		return false;
-
-	jd->pause = true;
-
-	return true;
-}
-
-const struct audio_output_plugin jack_output_plugin = {
-	"jack",
-	mpd_jack_test_default_device,
-	mpd_jack_init,
-	mpd_jack_finish,
-	mpd_jack_enable,
-	mpd_jack_disable,
-	mpd_jack_open,
-	mpd_jack_close,
-	mpd_jack_delay,
-	nullptr,
-	mpd_jack_play,
-	nullptr,
-	nullptr,
-	mpd_jack_pause,
-	nullptr,
-};