jack patch from anarch (and some type fixes for mp4 and acc plugins)
git-svn-id: https://svn.musicpd.org/mpd/trunk@4912 09075e82-0dd4-0310-85a5-a0d7c8717e4f
This commit is contained in:
Warren Dukes
380
src/audioOutputs/audioOutput_jack.c
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380
src/audioOutputs/audioOutput_jack.c
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/* jack plug in for the Music Player Daemon (MPD)
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* (c)2006 by anarch(anarchsss@gmail.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "../audioOutput.h"
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#ifdef HAVE_JACK
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#include <stdlib.h>
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#include <errno.h>
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#include "../conf.h"
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#include "../log.h"
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#include "../sig_handlers.h"
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#include <sys/types.h>
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#include <string.h>
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#include <assert.h>
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#include <signal.h>
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#include <unistd.h>
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#include <jack/jack.h>
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#include <jack/types.h>
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#include <jack/ringbuffer.h>
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#define MIN(a, b) ((a) < (b) ? (a) : (b))
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int ringbuf_sz = 32768;
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char *ports[2] = {NULL, NULL};
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typedef struct _JackData {
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jack_options_t options;
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jack_port_t *ports[2];
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jack_client_t *client;
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jack_default_audio_sample_t **in;
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jack_ringbuffer_t *ringbuffer[2];
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int bps;
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int shutdown;
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int nports;
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int our_xrun;
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} JackData;
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JackData *jd = NULL;
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static JackData *newJackData (void)
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{
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JackData *ret;
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ret = calloc (sizeof (JackData), 1);
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ret->options = JackNullOption;
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return ret;
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}
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static void disconnect_jack (JackData *jd)
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{
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jack_deactivate (jd->client);
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jack_client_close (jd->client);
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ERROR ("disconnect_jack (pid=%d)\n", getpid ());
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}
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static void jack_finishDriver (AudioOutput * audioOutput)
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{
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JackData *jd = audioOutput->data;
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disconnect_jack (jd);
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free (jd);
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free (ports[0]);
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free (ports[1]);
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}
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static int srate (jack_nframes_t rate, void *data)
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{
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JackData *jd = (JackData *) ((AudioOutput*) data)->data;
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AudioFormat *audioFormat = &(((AudioOutput*) data)->outAudioFormat);
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audioFormat->sampleRate = (int) jack_get_sample_rate (jd->client);
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return 0;
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}
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static int process (jack_nframes_t nframes, void *arg)
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{
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size_t i;
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JackData *jd = (JackData *) arg;
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jack_default_audio_sample_t *out[2];
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size_t avail_data, avail_frames;
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if ( nframes <= 0 )
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return 0;
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out[0] = jack_port_get_buffer (jd->ports[0], nframes);
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out[1] = jack_port_get_buffer (jd->ports[1], nframes);
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avail_data = jack_ringbuffer_read_space (jd->ringbuffer[1]);
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if ( avail_data > 0 ) {
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avail_frames = avail_data / sizeof (jack_default_audio_sample_t);
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if (avail_frames > nframes) {
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avail_frames = nframes;
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avail_data = nframes * sizeof (jack_default_audio_sample_t);
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}
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jack_ringbuffer_read (jd->ringbuffer[0], (char *)out[0], avail_data);
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jack_ringbuffer_read (jd->ringbuffer[1], (char *)out[1], avail_data);
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if (avail_frames < nframes) {
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jd->our_xrun = 1;
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for (i = avail_frames; i < nframes; i++) {
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out[0][i] = out[1][i] = 0.0;
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}
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}
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} else {
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//ERROR ("avail_data=%d, no play (pid=%d)!\n", avail_data, getpid ());
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for (i = 0; i < nframes; i++) {
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out[0][i] = 0.0;
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out[1][i] = 0.0;
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}
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}
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return 0;
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}
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static void shutdown_callback (void *arg)
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{
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JackData *jd = (JackData *) arg;
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jd->shutdown = 1;
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}
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static void set_audioformat (AudioOutput *audioOutput)
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{
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JackData *jd = audioOutput->data;
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AudioFormat *audioFormat = &audioOutput->outAudioFormat;
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audioFormat->sampleRate = (int) jack_get_sample_rate (jd->client);
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ERROR ("samplerate = %d\n", audioFormat->sampleRate);
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jd->nports = audioFormat->channels = 2;
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audioFormat->bits = 16;
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jd->bps = audioFormat->channels *
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audioFormat->channels *
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audioFormat->sampleRate;
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}
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static int connect_jack (AudioOutput *audioOutput)
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{
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JackData *jd = audioOutput->data;
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const char **jports;
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if ( (jd->client = jack_client_new ("mpd")) == NULL ) {
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ERROR ("jack server not running?\n");
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return -1;
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}
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jd->ringbuffer[0] = jack_ringbuffer_create (ringbuf_sz);
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jd->ringbuffer[1] = jack_ringbuffer_create (ringbuf_sz);
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jack_set_process_callback (jd->client, process, (void *)jd);
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jack_set_sample_rate_callback (jd->client, (JackProcessCallback)srate,
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(void *)audioOutput);
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jack_on_shutdown (jd->client, shutdown_callback, (void *)jd);
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if ( jack_activate (jd->client) ) {
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ERROR ("cannot activate client");
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jack_ringbuffer_free (jd->ringbuffer[0]);
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jack_ringbuffer_free (jd->ringbuffer[1]);
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return -1;
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}
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jd->ports[0] = jack_port_register (jd->client, "left",
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JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsOutput, 0);
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if ( !jd->ports[0] ) {
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ERROR ("Cannot register output port.\n");
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jack_ringbuffer_free (jd->ringbuffer[0]);
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jack_ringbuffer_free (jd->ringbuffer[1]);
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return -1;
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}
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jd->ports[1] = jack_port_register (jd->client, "right",
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JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsOutput, 0);
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if ( !jd->ports[1] ) {
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ERROR ("Cannot register output port.\n");
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jack_ringbuffer_free (jd->ringbuffer[0]);
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jack_ringbuffer_free (jd->ringbuffer[1]);
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return -1;
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}
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memset (jd->ringbuffer[0]->buf, 0, jd->ringbuffer[0]->size);
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memset (jd->ringbuffer[1]->buf, 0, jd->ringbuffer[1]->size);
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/* hay que buscar que hay */
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if ( !ports[1] && (jports = jack_get_ports (jd->client, NULL, NULL,
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JackPortIsPhysical|
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JackPortIsInput)) ) {
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ports[0] = (char *) jports[0];
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ports[1] = (char *) ( jports[1] ? jports[1] : jports[0] );
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ERROR ("jports: %s %s\n", ports[0], ports[1]);
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free (jports);
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}
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if ( ports[1] ) {
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if ( (jack_connect (jd->client, "mpd:left", ports[0])) != 0 ) {
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ERROR ("%s is not a valid Jack Client / Port ", ports[0]);
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jack_ringbuffer_free (jd->ringbuffer[0]);
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jack_ringbuffer_free (jd->ringbuffer[1]);
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return -1;
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}
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if ( (jack_connect (jd->client, "mpd:right", ports[1])) != 0 ) {
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ERROR ("%s is not a valid Jack Client / Port ", ports[1]);
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jack_ringbuffer_free (jd->ringbuffer[0]);
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jack_ringbuffer_free (jd->ringbuffer[1]);
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return -1;
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}
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}
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ERROR ("connect_jack (pid=%d)\n", getpid ());
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return 1;
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}
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static int jack_initDriver (AudioOutput *audioOutput, ConfigParam *param)
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{
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BlockParam *bp;
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char *endptr;
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int val;
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char *cp = NULL;
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if ( param ) {
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bp = getBlockParam (param, "ports");
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if ( bp ) {
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cp = strdup (bp->value);
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ports[0] = strdup (strtok (cp, " ,"));
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ports[1] = strdup (strtok (NULL, " ,"));
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free (cp);
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}
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bp = getBlockParam (param, "ringbuffer_size");
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if ( bp ) {
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errno = 0;
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val = strtol (bp->value, &endptr, 10);
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if ( errno == 0 && endptr != bp->value) {
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ringbuf_sz = val;
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ERROR ("ringbuffer_size=%d\n", ringbuf_sz);
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} else {
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ERROR ("%s is not a number; ringbuf_size=%d\n",
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bp->value, ringbuf_sz);
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}
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}
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}
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ERROR ("jack_initDriver (pid=%d)\n", getpid ());
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return 0;
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}
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static int jack_testDefault(void)
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{
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return 0;
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}
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static int jack_openDevice (AudioOutput *audioOutput)
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{
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if ( !jd ) {
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jd = newJackData ();
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audioOutput->data = jd;
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if ( !connect_jack (audioOutput) ) {
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free (jd);
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return -1;
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}
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}
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set_audioformat (audioOutput);
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audioOutput->open = 1;
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ERROR ("jack_openDevice (pid=%d)!\n", getpid ());
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return 0;
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}
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static void jack_closeDevice(AudioOutput * audioOutput)
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{
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audioOutput->open = 0;
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ERROR ("jack_closeDevice (pid=%d)!\n", getpid ());
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}
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static void jack_dropBufferedAudio (AudioOutput * audioOutput)
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{
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}
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static int jack_playAudio(AudioOutput * audioOutput, char *buff, int size)
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{
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JackData *jd = audioOutput->data;
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size_t remain = size;
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size_t pos = 0;
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if ( jd->shutdown ) {
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ERROR ("Refusing to play, because there is no client thread.\n");
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return 0;
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}
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if ( jd->our_xrun ) {
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ERROR ("xrun\n");
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jd->our_xrun = 0;
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}
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while (remain && !jd->shutdown) {
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size_t space;
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if ( (space = jack_ringbuffer_write_space (jd->ringbuffer[0]))
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> sizeof (jack_default_audio_sample_t) ) {
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size_t to_write;
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to_write = MIN (space, remain);
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remain -= to_write;
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to_write /= 4;
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//ERROR ("\t\tto_write=%d remain=%d (%d)\n", to_write, remain, to_write * 2 * 2);
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while (to_write--) {
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jack_default_audio_sample_t sample;
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sample = *(short *)(buff + pos);
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sample /= 32768;
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pos += 2;
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jack_ringbuffer_write (jd->ringbuffer[0],
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(char *)&sample,
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sizeof (sample));
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sample = *(short *)(buff + pos);
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sample /= 32768;
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pos += 2;
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jack_ringbuffer_write (jd->ringbuffer[1],
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(char *)&sample,
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sizeof (sample));
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}
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} else {
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usleep (ringbuf_sz / (float)(jd->bps) * 100000.0);
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}
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}
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return 0;
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}
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AudioOutputPlugin jackPlugin = {
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"jack",
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jack_testDefault,
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jack_initDriver,
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jack_finishDriver,
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jack_openDevice,
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jack_playAudio,
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jack_dropBufferedAudio,
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jack_closeDevice,
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NULL, /* sendMetadataFunc */
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};
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#else /* HAVE JACK */
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DISABLED_AUDIO_OUTPUT_PLUGIN(jackPlugin)
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#endif /* HAVE_JACK */
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