293 lines
6.7 KiB
C
293 lines
6.7 KiB
C
/* the Music Player Daemon (MPD)
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* (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
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* This project's homepage is: http://www.musicpd.org
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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 "../config.h"
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#ifdef HAVE_SHOUT
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#include "audioOutput.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 <stdlib.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 <shout/shout.h>
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#include <vorbis/vorbisenc.h>
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#include <vorbis/codec.h>
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static int shoutInitCount = 0;
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/* lots of this code blatantly stolent from bossogg/bossao2 */
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typedef struct _ShoutData {
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shout_t * shoutConn;
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ogg_stream_state os;
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ogg_page og;
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ogg_packet op;
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ogg_packet header_main;
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ogg_packet header_comments;
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ogg_packet header_codebooks;
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vorbis_dsp_state vd;
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vorbis_block vb;
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vorbis_info vi;
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vorbis_comment vc;
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int serialno;
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} ShoutData;
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static ShoutData * newShoutData() {
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ShoutData * ret = malloc(sizeof(ShoutData));
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ret->shoutConn = shout_new();
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ret->serialno = rand();
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return ret;
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}
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static void freeShoutData(ShoutData * sd) {
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if(sd->shoutConn) shout_free(sd->shoutConn);
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free(sd);
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}
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static int shout_initDriver(AudioOutput * audioOutput) {
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ShoutData * sd;
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char * test;
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int port;
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char * host;
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char * mount;
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char * passwd;
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char * user;
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char * name;
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if(!getConf()[CONF_SHOUT_HOST]) {
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return -1;
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}
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sd = newShoutData();
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if(!getConf()[CONF_SHOUT_MOUNT]) {
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ERROR("shout host defined but not shout mount point\n");
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exit(EXIT_FAILURE);
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}
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if(!getConf()[CONF_SHOUT_PORT]) {
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ERROR("shout host defined but not shout port\n");
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exit(EXIT_FAILURE);
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}
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if(!getConf()[CONF_SHOUT_PASSWD]) {
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ERROR("shout host defined but not shout password\n");
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exit(EXIT_FAILURE);
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}
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if(!getConf()[CONF_SHOUT_NAME]) {
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ERROR("shout host defined but not shout name\n");
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exit(EXIT_FAILURE);
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}
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if(!getConf()[CONF_SHOUT_USER]) {
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ERROR("shout host defined but not shout user\n");
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exit(EXIT_FAILURE);
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}
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host = getConf()[CONF_SHOUT_HOST];
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passwd = getConf()[CONF_SHOUT_PASSWD];
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user = getConf()[CONF_SHOUT_USER];
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mount = getConf()[CONF_SHOUT_MOUNT];
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name = getConf()[CONF_SHOUT_NAME];
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port = strtol(getConf()[CONF_SHOUT_PORT], &test, 10);
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if(*test != '\0' || port <= 0) {
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ERROR("shout port \"%s\" is not a positive integer\n",
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getConf()[CONF_SHOUT_PORT]);
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exit(EXIT_FAILURE);
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}
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if(shout_set_host(sd->shoutConn, host) != SHOUTERR_SUCCESS ||
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shout_set_port(sd->shoutConn, port) != SHOUTERR_SUCCESS ||
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shout_set_password(sd->shoutConn, passwd) != SHOUTERR_SUCCESS ||
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shout_set_mount(sd->shoutConn, mount) != SHOUTERR_SUCCESS ||
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shout_set_name(sd->shoutConn, name) != SHOUTERR_SUCCESS ||
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shout_set_user(sd->shoutConn, user) != SHOUTERR_SUCCESS ||
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shout_set_format(sd->shoutConn, SHOUT_FORMAT_VORBIS)
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!= SHOUTERR_SUCCESS ||
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shout_set_protocol(sd->shoutConn, SHOUT_PROTOCOL_HTTP)
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!= SHOUTERR_SUCCESS)
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{
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ERROR("error configuring shout: %s\n",
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shout_get_error(sd->shoutConn));
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exit(EXIT_FAILURE);
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}
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audioOutput->data = sd;
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if(shoutInitCount == 0) shout_init();
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shoutInitCount++;
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return 0;
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}
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static void shout_finishDriver(AudioOutput * audioOutput) {
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ShoutData * sd = (ShoutData *)audioOutput->data;
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freeShoutData(sd);
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shoutInitCount--;
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if(shoutInitCount == 0) shout_shutdown();
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}
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static void shout_closeDevice(AudioOutput * audioOutput) {
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ShoutData * sd = (ShoutData *) audioOutput->data;
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if(shout_close(sd->shoutConn) != SHOUTERR_SUCCESS)
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{
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ERROR("problem closing connection to shout server: %s\n",
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shout_get_error(sd->shoutConn));
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}
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ogg_stream_clear(&(sd->os));
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vorbis_block_clear(&(sd->vb));
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vorbis_dsp_clear(&(sd->vd));
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vorbis_comment_clear(&(sd->vc));
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vorbis_info_clear(&(sd->vi));
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audioOutput->open = 0;
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}
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static void write_page(ShoutData * sd) {
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if(!sd->og.header_len || !sd->og.body_len) return;
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shout_sync(sd->shoutConn);
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shout_send(sd->shoutConn, sd->og.header, sd->og.header_len);
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shout_send(sd->shoutConn, sd->og.body, sd->og.body_len);
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shout_sync(sd->shoutConn);
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}
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static int shout_openDevice(AudioOutput * audioOutput,
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AudioFormat * audioFormat)
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{
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ShoutData * sd = (ShoutData *)audioOutput->data;
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if(shout_open(sd->shoutConn) != SHOUTERR_SUCCESS)
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{
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ERROR("problem opening connection to shout server: %s\n",
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shout_get_error(sd->shoutConn));
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return -1;
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}
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vorbis_info_init(&(sd->vi));
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if( 0 != vorbis_encode_init_vbr(&(sd->vi), audioFormat->channels,
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audioFormat->sampleRate, 0.5) )
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{
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ERROR("problem seting up vorbis encoder for shout\n");
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vorbis_info_clear(&(sd->vi));
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return -1;
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}
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vorbis_analysis_init(&(sd->vd), &(sd->vi));
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vorbis_block_init (&(sd->vd), &(sd->vb));
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ogg_stream_init(&(sd->os), sd->serialno);
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vorbis_comment_init(&(sd->vc));
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vorbis_analysis_headerout(&(sd->vd), &(sd->vc), &(sd->header_main),
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&(sd->header_comments), &(sd->header_codebooks));
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ogg_stream_packetin(&(sd->os), &(sd->header_main));
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ogg_stream_packetin(&(sd->os), &(sd->header_comments));
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ogg_stream_packetin(&(sd->os), &(sd->header_codebooks));
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audioOutput->open = 1;
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while(ogg_stream_flush(&(sd->os), &(sd->og)))
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{
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write_page(sd);
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}
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return 0;
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}
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static int shout_play(AudioOutput * audioOutput, char * playChunk, int size) {
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int i,j;
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ShoutData * sd = (ShoutData *)audioOutput->data;
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float **vorbbuf = vorbis_analysis_buffer(&(sd->vd), size/4);
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for(i=0, j=0; i < size; i+=4, j++) {
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vorbbuf[0][j] = (*((mpd_sint16 *)(playChunk+i))) / 32768.0;
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vorbbuf[1][j] = (*((mpd_sint16 *)(playChunk+i+2))) / 32768.0;
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}
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vorbis_analysis_wrote(&(sd->vd), size/4);
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while(1 == vorbis_analysis_blockout(&(sd->vd), &(sd->vb))) {
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vorbis_analysis(&(sd->vb), NULL);
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vorbis_bitrate_addblock(&(sd->vb));
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while(vorbis_bitrate_flushpacket(&(sd->vd), &(sd->op))) {
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ogg_stream_packetin(&(sd->os), &(sd->op));
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do {
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if(ogg_stream_pageout(&(sd->os), &(sd->og)) == 0) {
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break;
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}
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write_page(sd);
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} while(ogg_page_eos(&(sd->og)));
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}
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}
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return 0;
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}
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AudioOutputPlugin shoutPlugin =
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{
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"shout",
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shout_initDriver,
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shout_finishDriver,
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shout_openDevice,
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shout_play,
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shout_closeDevice
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};
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#else
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#include <stdlib.h>
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AudioOutputPlugin shoutPlugin =
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{
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"shout",
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NULL,
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NULL,
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NULL,
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NULL,
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NULL
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};
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#endif
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