3cae6856b8
Pass the globally configured audio_format as a const pointer to plugin.init(). plugin.open() gets a writable pointer which contains the audio_format requested by the plugin. Its initial value is either the configured audio_format or the input file's audio_format.
554 lines
13 KiB
C
554 lines
13 KiB
C
/* the Music Player Daemon (MPD)
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* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
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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 "audioOutput_shout.h"
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#ifdef HAVE_SHOUT
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#include "../utils.h"
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#define CONN_ATTEMPT_INTERVAL 60
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#define DEFAULT_CONN_TIMEOUT 2
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static int shout_init_count;
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static const struct shout_encoder_plugin *const shout_encoder_plugins[] = {
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&shout_mp3_encoder,
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&shout_ogg_encoder,
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NULL
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};
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static const struct shout_encoder_plugin *
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shout_encoder_plugin_get(const char *name)
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{
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unsigned i;
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for (i = 0; shout_encoder_plugins[i] != NULL; ++i)
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if (strcmp(shout_encoder_plugins[i]->name, name) == 0)
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return shout_encoder_plugins[i];
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return NULL;
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}
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static struct shout_data *new_shout_data(void)
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{
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struct shout_data *ret = xmalloc(sizeof(*ret));
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ret->shout_conn = shout_new();
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ret->shout_meta = shout_metadata_new();
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ret->opened = 0;
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ret->tag = NULL;
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ret->tag_to_send = 0;
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ret->bitrate = -1;
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ret->quality = -2.0;
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ret->timeout = DEFAULT_CONN_TIMEOUT;
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ret->conn_attempts = 0;
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ret->last_attempt = 0;
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ret->timer = NULL;
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ret->buf.len = 0;
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return ret;
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}
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static void free_shout_data(struct shout_data *sd)
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{
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if (sd->shout_meta)
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shout_metadata_free(sd->shout_meta);
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if (sd->shout_conn)
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shout_free(sd->shout_conn);
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if (sd->tag)
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tag_free(sd->tag);
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if (sd->timer)
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timer_free(sd->timer);
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free(sd);
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}
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#define check_block_param(name) { \
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block_param = getBlockParam(param, name); \
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if (!block_param) { \
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FATAL("no \"%s\" defined for shout device defined at line " \
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"%i\n", name, param->line); \
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} \
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}
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static int my_shout_init_driver(struct audio_output *audio_output,
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const struct audio_format *audio_format,
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ConfigParam * param)
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{
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struct shout_data *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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const char *encoding;
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const char *user;
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char *name;
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BlockParam *block_param;
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int public;
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sd = new_shout_data();
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if (shout_init_count == 0)
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shout_init();
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shout_init_count++;
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check_block_param("host");
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host = block_param->value;
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check_block_param("mount");
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mount = block_param->value;
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check_block_param("port");
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port = strtol(block_param->value, &test, 10);
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if (*test != '\0' || port <= 0) {
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FATAL("shout port \"%s\" is not a positive integer, line %i\n",
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block_param->value, block_param->line);
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}
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check_block_param("password");
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passwd = block_param->value;
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check_block_param("name");
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name = block_param->value;
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public = getBoolBlockParam(param, "public", 1);
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if (public == CONF_BOOL_UNSET)
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public = 0;
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block_param = getBlockParam(param, "user");
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if (block_param)
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user = block_param->value;
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else
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user = "source";
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block_param = getBlockParam(param, "quality");
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if (block_param) {
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int line = block_param->line;
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sd->quality = strtod(block_param->value, &test);
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if (*test != '\0' || sd->quality < -1.0 || sd->quality > 10.0) {
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FATAL("shout quality \"%s\" is not a number in the "
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"range -1 to 10, line %i\n", block_param->value,
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block_param->line);
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}
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block_param = getBlockParam(param, "bitrate");
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if (block_param) {
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FATAL("quality (line %i) and bitrate (line %i) are "
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"both defined for shout output\n", line,
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block_param->line);
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}
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} else {
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block_param = getBlockParam(param, "bitrate");
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if (!block_param) {
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FATAL("neither bitrate nor quality defined for shout "
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"output at line %i\n", param->line);
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}
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sd->bitrate = strtol(block_param->value, &test, 10);
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if (*test != '\0' || sd->bitrate <= 0) {
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FATAL("bitrate at line %i should be a positive integer "
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"\n", block_param->line);
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}
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}
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check_block_param("format");
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assert(audio_format != NULL);
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sd->audio_format = *audio_format;
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block_param = getBlockParam(param, "encoding");
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if (block_param) {
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if (0 == strncasecmp(block_param->value, "mp3", 3))
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encoding = block_param->value;
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else if (0 == strncasecmp(block_param->value, "ogg", 3))
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encoding = block_param->value;
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else
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FATAL("shout encoding \"%s\" is not \"ogg\" or "
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"\"mp3\", line %i\n", block_param->value,
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block_param->line);
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} else {
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encoding = "ogg";
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}
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sd->encoder = shout_encoder_plugin_get(encoding);
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if (sd->encoder == NULL)
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FATAL("couldn't find shout encoder plugin for \"%s\" "
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"at line %i\n", encoding, block_param->line);
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if (shout_set_host(sd->shout_conn, host) != SHOUTERR_SUCCESS ||
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shout_set_port(sd->shout_conn, port) != SHOUTERR_SUCCESS ||
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shout_set_password(sd->shout_conn, passwd) != SHOUTERR_SUCCESS ||
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shout_set_mount(sd->shout_conn, mount) != SHOUTERR_SUCCESS ||
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shout_set_name(sd->shout_conn, name) != SHOUTERR_SUCCESS ||
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shout_set_user(sd->shout_conn, user) != SHOUTERR_SUCCESS ||
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shout_set_public(sd->shout_conn, public) != SHOUTERR_SUCCESS ||
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shout_set_nonblocking(sd->shout_conn, 1) != SHOUTERR_SUCCESS ||
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shout_set_format(sd->shout_conn, sd->encoder->shout_format)
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!= SHOUTERR_SUCCESS ||
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shout_set_protocol(sd->shout_conn, SHOUT_PROTOCOL_HTTP)
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!= SHOUTERR_SUCCESS ||
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shout_set_agent(sd->shout_conn, "MPD") != SHOUTERR_SUCCESS) {
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FATAL("error configuring shout defined at line %i: %s\n",
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param->line, shout_get_error(sd->shout_conn));
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}
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/* optional paramters */
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block_param = getBlockParam(param, "timeout");
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if (block_param) {
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sd->timeout = (int)strtol(block_param->value, &test, 10);
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if (*test != '\0' || sd->timeout <= 0) {
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FATAL("shout timeout is not a positive integer, "
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"line %i\n", block_param->line);
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}
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}
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block_param = getBlockParam(param, "genre");
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if (block_param && shout_set_genre(sd->shout_conn, block_param->value)) {
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FATAL("error configuring shout defined at line %i: %s\n",
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param->line, shout_get_error(sd->shout_conn));
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}
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block_param = getBlockParam(param, "description");
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if (block_param && shout_set_description(sd->shout_conn,
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block_param->value)) {
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FATAL("error configuring shout defined at line %i: %s\n",
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param->line, shout_get_error(sd->shout_conn));
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}
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{
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char temp[11];
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memset(temp, 0, sizeof(temp));
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snprintf(temp, sizeof(temp), "%d", sd->audio_format.channels);
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shout_set_audio_info(sd->shout_conn, SHOUT_AI_CHANNELS, temp);
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snprintf(temp, sizeof(temp), "%d", sd->audio_format.sampleRate);
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shout_set_audio_info(sd->shout_conn, SHOUT_AI_SAMPLERATE, temp);
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if (sd->quality >= -1.0) {
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snprintf(temp, sizeof(temp), "%2.2f", sd->quality);
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shout_set_audio_info(sd->shout_conn, SHOUT_AI_QUALITY,
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temp);
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} else {
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snprintf(temp, sizeof(temp), "%d", sd->bitrate);
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shout_set_audio_info(sd->shout_conn, SHOUT_AI_BITRATE,
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temp);
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}
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}
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audio_output->data = sd;
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return sd->encoder->init_func(sd);
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}
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static int handle_shout_error(struct shout_data *sd, int err)
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{
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switch (err) {
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case SHOUTERR_SUCCESS:
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break;
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case SHOUTERR_UNCONNECTED:
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case SHOUTERR_SOCKET:
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ERROR("Lost shout connection to %s:%i: %s\n",
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shout_get_host(sd->shout_conn),
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shout_get_port(sd->shout_conn),
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shout_get_error(sd->shout_conn));
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sd->shout_error = 1;
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return -1;
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default:
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ERROR("shout: connection to %s:%i error: %s\n",
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shout_get_host(sd->shout_conn),
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shout_get_port(sd->shout_conn),
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shout_get_error(sd->shout_conn));
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sd->shout_error = 1;
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return -1;
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}
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return 0;
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}
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static int write_page(struct shout_data *sd)
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{
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int err;
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if (sd->buf.len == 0)
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return 0;
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shout_sync(sd->shout_conn);
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err = shout_send(sd->shout_conn, sd->buf.data, sd->buf.len);
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if (handle_shout_error(sd, err) < 0)
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return -1;
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sd->buf.len = 0;
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return 0;
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}
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static void close_shout_conn(struct shout_data * sd)
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{
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if (sd->opened) {
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if (sd->encoder->clear_encoder_func(sd))
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write_page(sd);
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}
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if (shout_get_connected(sd->shout_conn) != SHOUTERR_UNCONNECTED &&
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shout_close(sd->shout_conn) != SHOUTERR_SUCCESS) {
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ERROR("problem closing connection to shout server: %s\n",
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shout_get_error(sd->shout_conn));
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}
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sd->opened = 0;
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}
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static void my_shout_finish_driver(struct audio_output *audio_output)
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{
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struct shout_data *sd = (struct shout_data *) audio_output->data;
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close_shout_conn(sd);
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sd->encoder->finish_func(sd);
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free_shout_data(sd);
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shout_init_count--;
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if (shout_init_count == 0)
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shout_shutdown();
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}
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static void my_shout_drop_buffered_audio(struct audio_output *audio_output)
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{
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struct shout_data *sd = (struct shout_data *)audio_output->data;
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timer_reset(sd->timer);
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/* needs to be implemented for shout */
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}
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static void my_shout_close_device(struct audio_output *audio_output)
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{
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struct shout_data *sd = (struct shout_data *) audio_output->data;
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close_shout_conn(sd);
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if (sd->timer) {
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timer_free(sd->timer);
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sd->timer = NULL;
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}
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audio_output->open = 0;
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}
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static int shout_connect(struct shout_data *sd)
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{
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time_t t = time(NULL);
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int state = shout_get_connected(sd->shout_conn);
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/* already connected */
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if (state == SHOUTERR_CONNECTED)
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return 0;
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/* waiting to connect */
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if (state == SHOUTERR_BUSY && sd->conn_attempts != 0) {
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/* timeout waiting to connect */
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if ((t - sd->last_attempt) > sd->timeout) {
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ERROR("timeout connecting to shout server %s:%i "
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"(attempt %i)\n",
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shout_get_host(sd->shout_conn),
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shout_get_port(sd->shout_conn),
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sd->conn_attempts);
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return -1;
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}
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return 1;
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}
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/* we're in some funky state, so just reset it to unconnected */
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if (state != SHOUTERR_UNCONNECTED)
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shout_close(sd->shout_conn);
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/* throttle new connection attempts */
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if (sd->conn_attempts != 0 &&
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(t - sd->last_attempt) <= CONN_ATTEMPT_INTERVAL) {
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return -1;
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}
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/* initiate a new connection */
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sd->conn_attempts++;
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sd->last_attempt = t;
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state = shout_open(sd->shout_conn);
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switch (state) {
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case SHOUTERR_SUCCESS:
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case SHOUTERR_CONNECTED:
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return 0;
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case SHOUTERR_BUSY:
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return 1;
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default:
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ERROR("problem opening connection to shout server %s:%i "
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"(attempt %i): %s\n",
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shout_get_host(sd->shout_conn),
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shout_get_port(sd->shout_conn),
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sd->conn_attempts, shout_get_error(sd->shout_conn));
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return -1;
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}
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}
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static int open_shout_conn(struct audio_output *audio_output)
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{
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struct shout_data *sd = (struct shout_data *) audio_output->data;
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int status;
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status = shout_connect(sd);
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if (status != 0)
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return status;
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if (sd->encoder->init_encoder_func(sd) < 0) {
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shout_close(sd->shout_conn);
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return -1;
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}
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write_page(sd);
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sd->shout_error = 0;
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sd->opened = 1;
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sd->tag_to_send = 1;
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sd->conn_attempts = 0;
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return 0;
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}
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static int my_shout_open_device(struct audio_output *audio_output,
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struct audio_format *audio_format)
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{
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struct shout_data *sd = (struct shout_data *) audio_output->data;
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if (!sd->opened && open_shout_conn(audio_output) < 0)
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return -1;
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if (sd->timer)
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timer_free(sd->timer);
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sd->timer = timer_new(audio_format);
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audio_output->open = 1;
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return 0;
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}
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static void send_metadata(struct shout_data * sd)
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{
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static const int size = 1024;
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char song[size];
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if (!sd->opened || !sd->tag)
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return;
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if (sd->encoder->send_metadata_func(sd, song, size)) {
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shout_metadata_add(sd->shout_meta, "song", song);
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if (SHOUTERR_SUCCESS != shout_set_metadata(sd->shout_conn,
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sd->shout_meta)) {
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ERROR("error setting shout metadata\n");
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return;
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}
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}
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sd->tag_to_send = 0;
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}
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static int my_shout_play(struct audio_output *audio_output,
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const char *chunk, size_t size)
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{
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struct shout_data *sd = (struct shout_data *) audio_output->data;
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int status;
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if (!sd->timer->started)
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timer_start(sd->timer);
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timer_add(sd->timer, size);
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if (sd->opened && sd->tag_to_send)
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send_metadata(sd);
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if (!sd->opened) {
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status = open_shout_conn(audio_output);
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if (status < 0) {
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my_shout_close_device(audio_output);
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return -1;
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} else if (status > 0) {
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timer_sync(sd->timer);
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return 0;
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}
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}
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if (sd->encoder->encode_func(sd, chunk, size)) {
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my_shout_close_device(audio_output);
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return -1;
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}
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if (write_page(sd) < 0) {
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my_shout_close_device(audio_output);
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return -1;
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}
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return 0;
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}
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static void my_shout_set_tag(struct audio_output *audio_output,
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const struct tag *tag)
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{
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struct shout_data *sd = (struct shout_data *) audio_output->data;
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if (sd->tag)
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tag_free(sd->tag);
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sd->tag = NULL;
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sd->tag_to_send = 0;
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if (!tag)
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return;
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|
|
sd->tag = tag_dup(tag);
|
|
sd->tag_to_send = 1;
|
|
}
|
|
|
|
const struct audio_output_plugin shoutPlugin = {
|
|
"shout",
|
|
NULL,
|
|
my_shout_init_driver,
|
|
my_shout_finish_driver,
|
|
my_shout_open_device,
|
|
my_shout_play,
|
|
my_shout_drop_buffered_audio,
|
|
my_shout_close_device,
|
|
my_shout_set_tag,
|
|
};
|
|
|
|
#else
|
|
|
|
DISABLED_AUDIO_OUTPUT_PLUGIN(shoutPlugin)
|
|
#endif
|