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authorMax Kellermann <max@duempel.org>2009-10-21 18:33:01 +0200
committerMax Kellermann <max@duempel.org>2009-10-21 18:33:01 +0200
commitacfd9a73bca59476af5680bd04902b2215813f74 (patch)
treea826bb6285b27e10771ca6e1aaf928c1ecd58f86 /src/output/jack_plugin.c
parentb479a264b66a5cb74fc8424d7d47035fdfad8799 (diff)
downloadmpd-acfd9a73bca59476af5680bd04902b2215813f74.tar.gz
mpd-acfd9a73bca59476af5680bd04902b2215813f74.tar.xz
mpd-acfd9a73bca59476af5680bd04902b2215813f74.zip
output/jack: renamed source to jack_output_plugin.c
Diffstat (limited to 'src/output/jack_plugin.c')
-rw-r--r--src/output/jack_plugin.c450
1 files changed, 0 insertions, 450 deletions
diff --git a/src/output/jack_plugin.c b/src/output/jack_plugin.c
deleted file mode 100644
index 5dc1eca24..000000000
--- a/src/output/jack_plugin.c
+++ /dev/null
@@ -1,450 +0,0 @@
-/*
- * Copyright (C) 2003-2009 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 "../output_api.h"
-#include "config.h"
-
-#include <assert.h>
-
-#include <glib.h>
-#include <jack/jack.h>
-#include <jack/types.h>
-#include <jack/ringbuffer.h>
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <errno.h>
-
-#undef G_LOG_DOMAIN
-#define G_LOG_DOMAIN "jack"
-
-static const size_t sample_size = sizeof(jack_default_audio_sample_t);
-
-static const char *const port_names[2] = {
- "left", "right",
-};
-
-struct jack_data {
- const char *name;
-
- /* configuration */
- char *output_ports[2];
- int ringbuffer_size;
-
- /* the current audio format */
- struct audio_format audio_format;
-
- /* jack library stuff */
- jack_port_t *ports[2];
- jack_client_t *client;
- jack_ringbuffer_t *ringbuffer[2];
-
- bool shutdown;
-};
-
-/**
- * The quark used for GError.domain.
- */
-static inline GQuark
-jack_output_quark(void)
-{
- return g_quark_from_static_string("jack_output");
-}
-
-static void
-mpd_jack_client_free(struct jack_data *jd)
-{
- assert(jd != NULL);
-
- if (jd->client != NULL) {
- jack_deactivate(jd->client);
- jack_client_close(jd->client);
- jd->client = NULL;
- }
-
- for (unsigned i = 0; i < G_N_ELEMENTS(jd->ringbuffer); ++i) {
- if (jd->ringbuffer[i] != NULL) {
- jack_ringbuffer_free(jd->ringbuffer[i]);
- jd->ringbuffer[i] = NULL;
- }
- }
-}
-
-static void
-mpd_jack_free(struct jack_data *jd)
-{
- assert(jd != NULL);
-
- for (unsigned i = 0; i < G_N_ELEMENTS(jd->output_ports); ++i)
- g_free(jd->output_ports[i]);
-
- g_free(jd);
-}
-
-static void
-mpd_jack_finish(void *data)
-{
- struct jack_data *jd = data;
- mpd_jack_free(jd);
-}
-
-static int
-mpd_jack_process(jack_nframes_t nframes, void *arg)
-{
- struct jack_data *jd = (struct jack_data *) arg;
- jack_default_audio_sample_t *out;
- size_t available;
-
- if (nframes <= 0)
- return 0;
-
- for (unsigned i = 0; i < G_N_ELEMENTS(jd->ringbuffer); ++i) {
- available = jack_ringbuffer_read_space(jd->ringbuffer[i]);
- assert(available % sample_size == 0);
- available /= sample_size;
- if (available > nframes)
- available = nframes;
-
- out = jack_port_get_buffer(jd->ports[i], nframes);
- jack_ringbuffer_read(jd->ringbuffer[i],
- (char *)out, available * sample_size);
-
- while (available < nframes)
- /* ringbuffer underrun, fill with silence */
- out[available++] = 0.0;
- }
-
- return 0;
-}
-
-static void
-mpd_jack_shutdown(void *arg)
-{
- struct jack_data *jd = (struct jack_data *) arg;
- jd->shutdown = true;
-}
-
-static void
-set_audioformat(struct jack_data *jd, struct audio_format *audio_format)
-{
- audio_format->sample_rate = jack_get_sample_rate(jd->client);
- audio_format->channels = 2;
-
- if (audio_format->bits != 16 && audio_format->bits != 24)
- audio_format->bits = 24;
-}
-
-static void
-mpd_jack_error(const char *msg)
-{
- g_warning("%s", msg);
-}
-
-#ifdef HAVE_JACK_SET_INFO_FUNCTION
-static void
-mpd_jack_info(const char *msg)
-{
- g_message("%s", msg);
-}
-#endif
-
-static void *
-mpd_jack_init(G_GNUC_UNUSED const struct audio_format *audio_format,
- const struct config_param *param, GError **error)
-{
- struct jack_data *jd;
- const char *value;
-
- jd = g_new(struct jack_data, 1);
- jd->name = config_get_block_string(param, "name", "mpd_jack");
-
- g_debug("mpd_jack_init (pid=%d)", getpid());
-
- value = config_get_block_string(param, "ports", NULL);
- if (value != NULL) {
- char **ports = g_strsplit(value, ",", 0);
-
- if (ports[0] == NULL || ports[1] == NULL || ports[2] != NULL) {
- g_set_error(error, jack_output_quark(), 0,
- "two port names expected in line %d",
- param->line);
- return NULL;
- }
-
- jd->output_ports[0] = ports[0];
- jd->output_ports[1] = ports[1];
-
- g_free(ports);
- } else {
- jd->output_ports[0] = NULL;
- jd->output_ports[1] = NULL;
- }
-
- jd->ringbuffer_size =
- config_get_block_unsigned(param, "ringbuffer_size", 32768);
-
- jack_set_error_function(mpd_jack_error);
-
-#ifdef HAVE_JACK_SET_INFO_FUNCTION
- jack_set_info_function(mpd_jack_info);
-#endif
-
- return jd;
-}
-
-static bool
-mpd_jack_test_default_device(void)
-{
- return true;
-}
-
-static bool
-mpd_jack_connect(struct jack_data *jd, GError **error)
-{
- const char *output_ports[2], **jports;
-
- for (unsigned i = 0; i < G_N_ELEMENTS(jd->ringbuffer); ++i)
- jd->ringbuffer[i] =
- jack_ringbuffer_create(jd->ringbuffer_size);
-
- jd->shutdown = false;
-
- if ((jd->client = jack_client_new(jd->name)) == NULL) {
- g_set_error(error, jack_output_quark(), 0,
- "Failed to connect to JACK server");
- 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 < G_N_ELEMENTS(jd->ports); ++i) {
- jd->ports[i] = jack_port_register(jd->client, port_names[i],
- JACK_DEFAULT_AUDIO_TYPE,
- JackPortIsOutput, 0);
- if (jd->ports[i] == NULL) {
- g_set_error(error, jack_output_quark(), 0,
- "Cannot register output port \"%s\"",
- port_names[i]);
- return false;
- }
- }
-
- if ( jack_activate(jd->client) ) {
- g_set_error(error, jack_output_quark(), 0,
- "cannot activate client");
- return false;
- }
-
- if (jd->output_ports[1] == NULL) {
- /* no output ports were configured - ask libjack for
- defaults */
- jports = jack_get_ports(jd->client, NULL, NULL,
- JackPortIsPhysical | JackPortIsInput);
- if (jports == NULL) {
- g_set_error(error, jack_output_quark(), 0,
- "no ports found");
- return false;
- }
-
- output_ports[0] = jports[0];
- output_ports[1] = jports[1] != NULL ? jports[1] : jports[0];
-
- g_debug("output_ports: %s %s", jports[0], jports[1]);
- } else {
- /* use the configured output ports */
-
- output_ports[0] = jd->output_ports[0];
- output_ports[1] = jd->output_ports[1];
-
- jports = NULL;
- }
-
- for (unsigned i = 0; i < G_N_ELEMENTS(jd->ports); ++i) {
- int ret;
-
- ret = jack_connect(jd->client, jack_port_name(jd->ports[i]),
- output_ports[i]);
- if (ret != 0) {
- g_set_error(error, jack_output_quark(), 0,
- "Not a valid JACK port: %s",
- output_ports[i]);
-
- if (jports != NULL)
- free(jports);
-
- return false;
- }
- }
-
- if (jports != NULL)
- free(jports);
-
- return true;
-}
-
-static bool
-mpd_jack_open(void *data, struct audio_format *audio_format, GError **error)
-{
- struct jack_data *jd = data;
-
- assert(jd != NULL);
-
- if (!mpd_jack_connect(jd, error)) {
- mpd_jack_client_free(jd);
- return false;
- }
-
- set_audioformat(jd, audio_format);
- jd->audio_format = *audio_format;
-
- return true;
-}
-
-static void
-mpd_jack_close(G_GNUC_UNUSED void *data)
-{
- struct jack_data *jd = data;
-
- mpd_jack_client_free(jd);
-}
-
-static void
-mpd_jack_cancel (G_GNUC_UNUSED void *data)
-{
-}
-
-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(struct jack_data *jd, const int16_t *src,
- unsigned num_samples)
-{
- jack_default_audio_sample_t sample;
-
- while (num_samples-- > 0) {
- sample = sample_16_to_jack(*src++);
- jack_ringbuffer_write(jd->ringbuffer[0], (void*)&sample,
- sizeof(sample));
-
- sample = sample_16_to_jack(*src++);
- jack_ringbuffer_write(jd->ringbuffer[1], (void*)&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(struct jack_data *jd, const int32_t *src,
- unsigned num_samples)
-{
- jack_default_audio_sample_t sample;
-
- while (num_samples-- > 0) {
- sample = sample_24_to_jack(*src++);
- jack_ringbuffer_write(jd->ringbuffer[0], (void*)&sample,
- sizeof(sample));
-
- sample = sample_24_to_jack(*src++);
- jack_ringbuffer_write(jd->ringbuffer[1], (void*)&sample,
- sizeof(sample));
- }
-}
-
-static void
-mpd_jack_write_samples(struct jack_data *jd, const void *src,
- unsigned num_samples)
-{
- switch (jd->audio_format.bits) {
- case 16:
- mpd_jack_write_samples_16(jd, (const int16_t*)src,
- num_samples);
- break;
-
- case 24:
- mpd_jack_write_samples_24(jd, (const int32_t*)src,
- num_samples);
- break;
-
- default:
- assert(false);
- }
-}
-
-static size_t
-mpd_jack_play(void *data, const void *chunk, size_t size, GError **error)
-{
- struct jack_data *jd = data;
- const size_t frame_size = audio_format_frame_size(&jd->audio_format);
- size_t space = 0, space1;
-
- assert(size % frame_size == 0);
- size /= frame_size;
-
- while (true) {
- if (jd->shutdown) {
- g_set_error(error, jack_output_quark(), 0,
- "Refusing to play, because "
- "there is no client thread");
- return 0;
- }
-
- space = jack_ringbuffer_write_space(jd->ringbuffer[0]);
- space1 = jack_ringbuffer_write_space(jd->ringbuffer[1]);
- if (space > space1)
- /* send data symmetrically */
- space = space1;
-
- if (space >= frame_size)
- break;
-
- /* XXX do something more intelligent to
- synchronize */
- g_usleep(1000);
- }
-
- space /= sample_size;
- if (space < size)
- size = space;
-
- mpd_jack_write_samples(jd, chunk, size);
- return size * frame_size;
-}
-
-const struct audio_output_plugin jackPlugin = {
- .name = "jack",
- .test_default_device = mpd_jack_test_default_device,
- .init = mpd_jack_init,
- .finish = mpd_jack_finish,
- .open = mpd_jack_open,
- .play = mpd_jack_play,
- .cancel = mpd_jack_cancel,
- .close = mpd_jack_close,
-};