From 166569200a0fcbcad5fb4a3b864b061796d058c6 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Wed, 17 Apr 2013 00:47:20 +0200 Subject: output/shout: convert to C++ --- src/output/shout_output_plugin.c | 561 --------------------------------------- 1 file changed, 561 deletions(-) delete mode 100644 src/output/shout_output_plugin.c (limited to 'src/output/shout_output_plugin.c') diff --git a/src/output/shout_output_plugin.c b/src/output/shout_output_plugin.c deleted file mode 100644 index 56d7a88b1..000000000 --- a/src/output/shout_output_plugin.c +++ /dev/null @@ -1,561 +0,0 @@ -/* - * Copyright (C) 2003-2011 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 "config.h" -#include "shout_output_plugin.h" -#include "output_api.h" -#include "encoder_plugin.h" -#include "encoder_list.h" -#include "mpd_error.h" - -#include -#include - -#include -#include -#include - -#undef G_LOG_DOMAIN -#define G_LOG_DOMAIN "shout" - -#define DEFAULT_CONN_TIMEOUT 2 - -struct shout_data { - struct audio_output base; - - shout_t *shout_conn; - shout_metadata_t *shout_meta; - - struct encoder *encoder; - - float quality; - int bitrate; - - int timeout; - - uint8_t buffer[32768]; -}; - -static int shout_init_count; - -/** - * The quark used for GError.domain. - */ -static inline GQuark -shout_output_quark(void) -{ - return g_quark_from_static_string("shout_output"); -} - -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); -} - -gcc_pure -static const char * -require_block_string(const struct config_param *param, const char *name) -{ - const char *value = config_get_block_string(param, name, NULL); - if (value == NULL) - MPD_ERROR("no \"%s\" defined for shout device defined at line " \ - "%i\n", name, param->line); \ - - return value; -} - -static bool -my_shout_configure(struct shout_data *sd, const struct config_param *param, - GError **error) -{ - - const struct audio_format *audio_format = - &sd->base.config_audio_format; - if (!audio_format_fully_defined(audio_format)) { - g_set_error(error, shout_output_quark(), 0, - "Need full audio format specification"); - ao_base_finish(&sd->base); - free_shout_data(sd); - return NULL; - } - - const char *host = require_block_string(param, "host"); - const char *mount = require_block_string(param, "mount"); - - unsigned port = config_get_block_unsigned(param, "port", 0); - if (port == 0) { - g_set_error(error, shout_output_quark(), 0, - "shout port must be configured"); - return false; - } - - const char *passwd = require_block_string(param, "password"); - const char *name = require_block_string(param, "name"); - - bool public = config_get_block_bool(param, "public", false); - - const char *user = config_get_block_string(param, "user", "source"); - - const char *value = config_get_block_string(param, "quality", NULL); - if (value != NULL) { - char *test; - sd->quality = strtod(value, &test); - - if (*test != '\0' || sd->quality < -1.0 || sd->quality > 10.0) { - g_set_error(error, shout_output_quark(), 0, - "shout quality \"%s\" is not a number in the " - "range -1 to 10, line %i", - value, param->line); - return false; - } - - if (config_get_block_string(param, "bitrate", NULL) != NULL) { - g_set_error(error, shout_output_quark(), 0, - "quality and bitrate are " - "both defined"); - return false; - } - } else { - value = config_get_block_string(param, "bitrate", NULL); - if (value == NULL) { - g_set_error(error, shout_output_quark(), 0, - "neither bitrate nor quality defined"); - return false; - } - - char *test; - sd->bitrate = strtol(value, &test, 10); - - if (*test != '\0' || sd->bitrate <= 0) { - g_set_error(error, shout_output_quark(), 0, - "bitrate must be a positive integer"); - return false; - } - } - - const char *encoding = config_get_block_string(param, "encoding", - "ogg"); - const struct encoder_plugin *encoder_plugin = - shout_encoder_plugin_get(encoding); - if (encoder_plugin == NULL) { - g_set_error(error, shout_output_quark(), 0, - "couldn't find shout encoder plugin \"%s\"", - encoding); - return false; - } - - sd->encoder = encoder_init(encoder_plugin, param, error); - if (sd->encoder == NULL) - return false; - - unsigned shout_format; - if (strcmp(encoding, "mp3") == 0 || strcmp(encoding, "lame") == 0) - shout_format = SHOUT_FORMAT_MP3; - else - shout_format = SHOUT_FORMAT_OGG; - - unsigned protocol; - value = config_get_block_string(param, "protocol", NULL); - if (value != NULL) { - if (0 == strcmp(value, "shoutcast") && - 0 != strcmp(encoding, "mp3")) { - g_set_error(error, shout_output_quark(), 0, - "you cannot stream \"%s\" to shoutcast, use mp3", - encoding); - return false; - } 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_set_error(error, shout_output_quark(), 0, - "shout protocol \"%s\" is not \"shoutcast\" or " - "\"icecast1\"or \"icecast2\"", - value); - return false; - } - } 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_set_error(error, shout_output_quark(), 0, - "%s", shout_get_error(sd->shout_conn)); - return false; - } - - /* 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_set_error(error, shout_output_quark(), 0, - "%s", shout_get_error(sd->shout_conn)); - return false; - } - - value = config_get_block_string(param, "description", NULL); - if (value != NULL && shout_set_description(sd->shout_conn, value)) { - g_set_error(error, shout_output_quark(), 0, - "%s", shout_get_error(sd->shout_conn)); - return false; - } - - value = config_get_block_string(param, "url", NULL); - if (value != NULL && shout_set_url(sd->shout_conn, value)) { - g_set_error(error, shout_output_quark(), 0, - "%s", shout_get_error(sd->shout_conn)); - return false; - } - - { - 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 true; -} - -static struct audio_output * -my_shout_init_driver(const struct config_param *param, - GError **error) -{ - struct shout_data *sd = new_shout_data(); - if (!ao_base_init(&sd->base, &shout_output_plugin, param, error)) { - free_shout_data(sd); - return NULL; - } - - if (!my_shout_configure(sd, param, error)) { - ao_base_finish(&sd->base); - free_shout_data(sd); - return NULL; - } - - if (shout_init_count == 0) - shout_init(); - - shout_init_count++; - - return &sd->base; -} - -static bool -handle_shout_error(struct shout_data *sd, int err, GError **error) -{ - switch (err) { - case SHOUTERR_SUCCESS: - break; - - case SHOUTERR_UNCONNECTED: - case SHOUTERR_SOCKET: - g_set_error(error, shout_output_quark(), err, - "Lost shout connection to %s:%i: %s", - shout_get_host(sd->shout_conn), - shout_get_port(sd->shout_conn), - shout_get_error(sd->shout_conn)); - return false; - - default: - g_set_error(error, shout_output_quark(), err, - "connection to %s:%i error: %s", - 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, GError **error) -{ - assert(sd->encoder != NULL); - - while (true) { - size_t nbytes = encoder_read(sd->encoder, - sd->buffer, sizeof(sd->buffer)); - if (nbytes == 0) - return true; - - int err = shout_send(sd->shout_conn, sd->buffer, nbytes); - if (!handle_shout_error(sd, err, error)) - return false; - } - - return true; -} - -static void close_shout_conn(struct shout_data * sd) -{ - if (sd->encoder != NULL) { - if (encoder_end(sd->encoder, NULL)) - write_page(sd, NULL); - - 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(struct audio_output *ao) -{ - struct shout_data *sd = (struct shout_data *)ao; - - encoder_finish(sd->encoder); - - ao_base_finish(&sd->base); - free_shout_data(sd); - - shout_init_count--; - - if (shout_init_count == 0) - shout_shutdown(); -} - -static void -my_shout_drop_buffered_audio(struct audio_output *ao) -{ - G_GNUC_UNUSED - struct shout_data *sd = (struct shout_data *)ao; - - /* needs to be implemented for shout */ -} - -static void -my_shout_close_device(struct audio_output *ao) -{ - struct shout_data *sd = (struct shout_data *)ao; - - close_shout_conn(sd); -} - -static bool -shout_connect(struct shout_data *sd, GError **error) -{ - switch (shout_open(sd->shout_conn)) { - case SHOUTERR_SUCCESS: - case SHOUTERR_CONNECTED: - return true; - - default: - g_set_error(error, shout_output_quark(), 0, - "problem opening connection to shout server %s:%i: %s", - 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(struct audio_output *ao, struct audio_format *audio_format, - GError **error) -{ - struct shout_data *sd = (struct shout_data *)ao; - - if (!shout_connect(sd, error)) - return false; - - if (!encoder_open(sd->encoder, audio_format, error)) { - shout_close(sd->shout_conn); - return false; - } - - if (!write_page(sd, error)) { - encoder_close(sd->encoder); - shout_close(sd->shout_conn); - return false; - } - - return true; -} - -static unsigned -my_shout_delay(struct audio_output *ao) -{ - struct shout_data *sd = (struct shout_data *)ao; - - int delay = shout_delay(sd->shout_conn); - if (delay < 0) - delay = 0; - - return delay; -} - -static size_t -my_shout_play(struct audio_output *ao, const void *chunk, size_t size, - GError **error) -{ - struct shout_data *sd = (struct shout_data *)ao; - - return encoder_write(sd->encoder, chunk, size, error) && - write_page(sd, error) - ? size - : 0; -} - -static bool -my_shout_pause(struct audio_output *ao) -{ - static const char silence[1020]; - - return my_shout_play(ao, silence, sizeof(silence), NULL); -} - -static void -shout_tag_to_metadata(const struct tag *tag, char *dest, size_t size) -{ - char artist[size]; - char title[size]; - - artist[0] = 0; - title[0] = 0; - - for (unsigned i = 0; i < tag->num_items; i++) { - switch (tag->items[i]->type) { - case TAG_ARTIST: - strncpy(artist, tag->items[i]->value, size); - break; - case TAG_TITLE: - strncpy(title, tag->items[i]->value, size); - break; - - default: - break; - } - } - - snprintf(dest, size, "%s - %s", artist, title); -} - -static void my_shout_set_tag(struct audio_output *ao, - const struct tag *tag) -{ - struct shout_data *sd = (struct shout_data *)ao; - GError *error = NULL; - - if (sd->encoder->plugin->tag != NULL) { - /* encoder plugin supports stream tags */ - - if (!encoder_pre_tag(sd->encoder, &error)) { - g_warning("%s", error->message); - g_error_free(error); - return; - } - - if (!write_page(sd, NULL)) - return; - - if (!encoder_tag(sd->encoder, tag, &error)) { - 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, NULL); -} - -const struct audio_output_plugin shout_output_plugin = { - .name = "shout", - .init = my_shout_init_driver, - .finish = my_shout_finish_driver, - .open = my_shout_open_device, - .delay = my_shout_delay, - .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, -}; -- cgit v1.2.3