mpd/src/output/shout_plugin.c
Max Kellermann 1c56edd1c8 shout: removed shout_encoder_plugins
This array is empty, and is not used anymore.
2009-02-22 17:51:12 +01:00

492 lines
12 KiB
C

/* the Music Player Daemon (MPD)
* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
* This project's homepage is: 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "shout_plugin.h"
#include "encoder_plugin.h"
#include "encoder_list.h"
#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#define DEFAULT_CONN_TIMEOUT 2
static int shout_init_count;
static const struct encoder_plugin *
shout_encoder_plugin_get(const char *name)
{
if (strcmp(name, "ogg") == 0)
name = "vorbis";
else if (strcmp(name, "mp3") == 0)
name = "lame";
return encoder_plugin_get(name);
}
static struct shout_data *new_shout_data(void)
{
struct shout_data *ret = g_new(struct shout_data, 1);
ret->shout_conn = shout_new();
ret->shout_meta = shout_metadata_new();
ret->bitrate = -1;
ret->quality = -2.0;
ret->timeout = DEFAULT_CONN_TIMEOUT;
return ret;
}
static void free_shout_data(struct shout_data *sd)
{
if (sd->shout_meta)
shout_metadata_free(sd->shout_meta);
if (sd->shout_conn)
shout_free(sd->shout_conn);
g_free(sd);
}
#define check_block_param(name) { \
block_param = getBlockParam(param, name); \
if (!block_param) { \
g_error("no \"%s\" defined for shout device defined at line " \
"%i\n", name, param->line); \
} \
}
static void *my_shout_init_driver(struct audio_output *audio_output,
const struct audio_format *audio_format,
const struct config_param *param)
{
struct shout_data *sd;
char *test;
int port;
char *host;
char *mount;
char *passwd;
const char *encoding;
const struct encoder_plugin *encoder_plugin;
GError *error = NULL;
unsigned shout_format;
unsigned protocol;
const char *user;
char *name;
const char *value;
struct block_param *block_param;
int public;
sd = new_shout_data();
sd->audio_output = audio_output;
if (shout_init_count == 0)
shout_init();
shout_init_count++;
check_block_param("host");
host = block_param->value;
check_block_param("mount");
mount = block_param->value;
check_block_param("port");
port = strtol(block_param->value, &test, 10);
if (*test != '\0' || port <= 0) {
g_error("shout port \"%s\" is not a positive integer, line %i\n",
block_param->value, block_param->line);
}
check_block_param("password");
passwd = block_param->value;
check_block_param("name");
name = block_param->value;
public = config_get_block_bool(param, "public", false);
user = config_get_block_string(param, "user", "source");
value = config_get_block_string(param, "quality", NULL);
if (value != NULL) {
sd->quality = strtod(value, &test);
if (*test != '\0' || sd->quality < -1.0 || sd->quality > 10.0) {
g_error("shout quality \"%s\" is not a number in the "
"range -1 to 10, line %i",
value, param->line);
}
if (config_get_block_string(param, "bitrate", NULL) != NULL) {
g_error("quality and bitrate are "
"both defined for shout output (line %i)",
param->line);
}
} else {
value = config_get_block_string(param, "bitrate", NULL);
if (value == NULL)
g_error("neither bitrate nor quality defined for shout "
"output at line %i", param->line);
sd->bitrate = strtol(value, &test, 10);
if (*test != '\0' || sd->bitrate <= 0) {
g_error("bitrate at line %i should be a positive integer "
"\n", param->line);
}
}
check_block_param("format");
encoding = config_get_block_string(param, "encoding", "ogg");
encoder_plugin = shout_encoder_plugin_get(encoding);
if (encoder_plugin == NULL)
g_error("couldn't find shout encoder plugin \"%s\"\n",
encoding);
sd->encoder = encoder_init(encoder_plugin, param, &error);
if (sd->encoder == NULL)
g_error("%s", error->message);
if (strcmp(encoding, "mp3") == 0 || strcmp(encoding, "lame") == 0)
shout_format = SHOUT_FORMAT_MP3;
else
shout_format = SHOUT_FORMAT_OGG;
value = config_get_block_string(param, "protocol", NULL);
if (value != NULL) {
if (0 == strcmp(value, "shoutcast") &&
0 != strcmp(encoding, "mp3"))
g_error("you cannot stream \"%s\" to shoutcast, use mp3\n",
encoding);
else if (0 == strcmp(value, "shoutcast"))
protocol = SHOUT_PROTOCOL_ICY;
else if (0 == strcmp(value, "icecast1"))
protocol = SHOUT_PROTOCOL_XAUDIOCAST;
else if (0 == strcmp(value, "icecast2"))
protocol = SHOUT_PROTOCOL_HTTP;
else
g_error("shout protocol \"%s\" is not \"shoutcast\" or "
"\"icecast1\"or "
"\"icecast2\", line %i\n",
value, param->line);
} else {
protocol = SHOUT_PROTOCOL_HTTP;
}
if (shout_set_host(sd->shout_conn, host) != SHOUTERR_SUCCESS ||
shout_set_port(sd->shout_conn, port) != SHOUTERR_SUCCESS ||
shout_set_password(sd->shout_conn, passwd) != SHOUTERR_SUCCESS ||
shout_set_mount(sd->shout_conn, mount) != SHOUTERR_SUCCESS ||
shout_set_name(sd->shout_conn, name) != SHOUTERR_SUCCESS ||
shout_set_user(sd->shout_conn, user) != SHOUTERR_SUCCESS ||
shout_set_public(sd->shout_conn, public) != SHOUTERR_SUCCESS ||
shout_set_format(sd->shout_conn, shout_format)
!= SHOUTERR_SUCCESS ||
shout_set_protocol(sd->shout_conn, protocol) != SHOUTERR_SUCCESS ||
shout_set_agent(sd->shout_conn, "MPD") != SHOUTERR_SUCCESS) {
g_error("error configuring shout defined at line %i: %s\n",
param->line, shout_get_error(sd->shout_conn));
}
/* optional paramters */
sd->timeout = config_get_block_unsigned(param, "timeout",
DEFAULT_CONN_TIMEOUT);
value = config_get_block_string(param, "genre", NULL);
if (value != NULL && shout_set_genre(sd->shout_conn, value)) {
g_error("error configuring shout defined at line %i: %s\n",
param->line, shout_get_error(sd->shout_conn));
}
value = config_get_block_string(param, "description", NULL);
if (value != NULL && shout_set_description(sd->shout_conn, value)) {
g_error("error configuring shout defined at line %i: %s\n",
param->line, shout_get_error(sd->shout_conn));
}
{
char temp[11];
memset(temp, 0, sizeof(temp));
snprintf(temp, sizeof(temp), "%u", audio_format->channels);
shout_set_audio_info(sd->shout_conn, SHOUT_AI_CHANNELS, temp);
snprintf(temp, sizeof(temp), "%u", audio_format->sample_rate);
shout_set_audio_info(sd->shout_conn, SHOUT_AI_SAMPLERATE, temp);
if (sd->quality >= -1.0) {
snprintf(temp, sizeof(temp), "%2.2f", sd->quality);
shout_set_audio_info(sd->shout_conn, SHOUT_AI_QUALITY,
temp);
} else {
snprintf(temp, sizeof(temp), "%d", sd->bitrate);
shout_set_audio_info(sd->shout_conn, SHOUT_AI_BITRATE,
temp);
}
}
return sd;
}
static bool
handle_shout_error(struct shout_data *sd, int err)
{
switch (err) {
case SHOUTERR_SUCCESS:
break;
case SHOUTERR_UNCONNECTED:
case SHOUTERR_SOCKET:
g_warning("Lost shout connection to %s:%i: %s\n",
shout_get_host(sd->shout_conn),
shout_get_port(sd->shout_conn),
shout_get_error(sd->shout_conn));
return false;
default:
g_warning("shout: connection to %s:%i error: %s\n",
shout_get_host(sd->shout_conn),
shout_get_port(sd->shout_conn),
shout_get_error(sd->shout_conn));
return false;
}
return true;
}
static bool
write_page(struct shout_data *sd)
{
int err;
assert(sd->encoder != NULL);
sd->buf.len = encoder_read(sd->encoder,
sd->buf.data, sizeof(sd->buf.data));
if (sd->buf.len == 0)
return true;
shout_sync(sd->shout_conn);
err = shout_send(sd->shout_conn, sd->buf.data, sd->buf.len);
if (!handle_shout_error(sd, err))
return false;
return true;
}
static void close_shout_conn(struct shout_data * sd)
{
sd->buf.len = 0;
if (sd->encoder != NULL) {
if (encoder_flush(sd->encoder, NULL))
write_page(sd);
encoder_close(sd->encoder);
}
if (shout_get_connected(sd->shout_conn) != SHOUTERR_UNCONNECTED &&
shout_close(sd->shout_conn) != SHOUTERR_SUCCESS) {
g_warning("problem closing connection to shout server: %s\n",
shout_get_error(sd->shout_conn));
}
}
static void my_shout_finish_driver(void *data)
{
struct shout_data *sd = (struct shout_data *)data;
encoder_finish(sd->encoder);
free_shout_data(sd);
shout_init_count--;
if (shout_init_count == 0)
shout_shutdown();
}
static void my_shout_drop_buffered_audio(void *data)
{
G_GNUC_UNUSED
struct shout_data *sd = (struct shout_data *)data;
/* needs to be implemented for shout */
}
static void my_shout_close_device(void *data)
{
struct shout_data *sd = (struct shout_data *)data;
close_shout_conn(sd);
}
static bool
shout_connect(struct shout_data *sd)
{
int state;
state = shout_open(sd->shout_conn);
switch (state) {
case SHOUTERR_SUCCESS:
case SHOUTERR_CONNECTED:
return true;
default:
g_warning("problem opening connection to shout server %s:%i: %s\n",
shout_get_host(sd->shout_conn),
shout_get_port(sd->shout_conn),
shout_get_error(sd->shout_conn));
return false;
}
}
static bool
my_shout_open_device(void *data, struct audio_format *audio_format)
{
struct shout_data *sd = (struct shout_data *)data;
bool ret;
GError *error = NULL;
ret = shout_connect(sd);
if (!ret)
return false;
sd->buf.len = 0;
ret = encoder_open(sd->encoder, audio_format, &error);
if (!ret) {
shout_close(sd->shout_conn);
g_warning("%s", error->message);
g_error_free(error);
return false;
}
write_page(sd);
return true;
}
static bool
my_shout_play(void *data, const char *chunk, size_t size)
{
struct shout_data *sd = (struct shout_data *)data;
bool ret;
GError *error = NULL;
ret = encoder_write(sd->encoder, chunk, size, &error);
if (!ret) {
g_warning("%s", error->message);
g_error_free(error);
return false;
}
return write_page(sd);
}
static bool
my_shout_pause(void *data)
{
static const char silence[1020];
return my_shout_play(data, silence, sizeof(silence));
}
static void
shout_tag_to_metadata(const struct tag *tag, char *dest, size_t size)
{
char artist[size];
char title[size];
int i;
artist[0] = 0;
title[0] = 0;
for (i = 0; i < tag->numOfItems; i++) {
switch (tag->items[i]->type) {
case TAG_ITEM_ARTIST:
strncpy(artist, tag->items[i]->value, size);
break;
case TAG_ITEM_TITLE:
strncpy(title, tag->items[i]->value, size);
break;
default:
break;
}
}
snprintf(dest, size, "%s - %s", title, artist);
}
static void my_shout_set_tag(void *data,
const struct tag *tag)
{
struct shout_data *sd = (struct shout_data *)data;
bool ret;
GError *error = NULL;
if (sd->encoder->plugin->tag != NULL) {
/* encoder plugin supports stream tags */
ret = encoder_flush(sd->encoder, &error);
if (!ret) {
g_warning("%s", error->message);
g_error_free(error);
return;
}
write_page(sd);
ret = encoder_tag(sd->encoder, tag, &error);
if (!ret) {
g_warning("%s", error->message);
g_error_free(error);
}
} else {
/* no stream tag support: fall back to icy-metadata */
char song[1024];
shout_tag_to_metadata(tag, song, sizeof(song));
shout_metadata_add(sd->shout_meta, "song", song);
if (SHOUTERR_SUCCESS != shout_set_metadata(sd->shout_conn,
sd->shout_meta)) {
g_warning("error setting shout metadata\n");
}
}
write_page(sd);
}
const struct audio_output_plugin shoutPlugin = {
.name = "shout",
.init = my_shout_init_driver,
.finish = my_shout_finish_driver,
.open = my_shout_open_device,
.play = my_shout_play,
.pause = my_shout_pause,
.cancel = my_shout_drop_buffered_audio,
.close = my_shout_close_device,
.send_tag = my_shout_set_tag,
};