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https://github.com/bspeice/xplaylist_creator
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Initial source commit
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Bradlee
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330
main.c
Normal file
330
main.c
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/* Author: Bradlee Speice
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* Program: XMMS2 playlist creator
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* Purpose: Given a playlist name (current playlist if none is given)
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output a file playlist with the URL's of all media in the
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XMMS2 playlist.
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Filetypes supported: M3U, PLS
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*/
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#include "main.h"
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int main(int argc, char **argv)
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{
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/* Let's get everything set up.
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* Parse the command line, and find out
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* what exactly it is that we're doing.
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*/
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int opt = 0;
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int long_index = 0;
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xplaylist_args.playlist_name = NULL;
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xplaylist_args.output_type = NULL;
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xplaylist_args.output_filename = NULL;
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xplaylist_args.out_file = NULL;
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struct medialib_info_node *head_node, *current_node;
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current_node = head_node = NULL;
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int playlist_length = 0;
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while(opt != -1)
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{
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opt = getopt_long(argc, argv, xplaylist_opt_string, xplaylist_long_opts, &long_index);
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switch(opt)
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{
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case 0:
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fprintf(stdout, "Unknown option %s: %s\n", xplaylist_long_opts[long_index].name, optarg); break;
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case 'p':
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xplaylist_args.playlist_name = optarg;
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break;
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case 't':
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xplaylist_args.output_type = optarg;
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break;
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case 'h':
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usage();
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exit(EXIT_SUCCESS);
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case '?':
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usage();
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return(EXIT_FAILURE);
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}
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}
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/* And then we need the output file_name */
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xplaylist_args.output_filename = argv[optind];
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if ((argc - optind) > 1){
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optind++;
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fprintf(stdout, "Extra input: ");
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for (optind; optind < argc; optind++){
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fprintf(stdout, "%s", argv[optind]);
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}
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fprintf(stdout, "\n");
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}
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if (xplaylist_args.output_type == NULL)
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xplaylist_args.output_type = "pls";
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/* End argument parsing */
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/* Connection and basic I/O variables */
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xmmsc_connection_t *connection;
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xmmsc_result_t *result;
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xmmsv_t *return_value;
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const char *err_buf;
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/* Other variables */
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xmmsv_list_iter_t *iterator;
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/* Now we start the fun stuff */
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/* Set up the connection */
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connection = xmmsc_init("xplaylist_creator");
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if (!connection) {
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fprintf(stderr, "Connection failed: %s\n",
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xmmsc_get_last_error(connection));
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exit (EXIT_FAILURE);
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}
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if (!xmmsc_connect (connection, getenv("XMMS_PATH"))) {
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fprintf(stderr, "Connection failed: %s\n",
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xmmsc_get_last_error(connection));
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exit (EXIT_FAILURE);
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}
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/* Get the playlist */
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result = xmmsc_playlist_list_entries(connection, xplaylist_args.playlist_name);
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xmmsc_result_wait(result);
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return_value = xmmsc_result_get_value(result);
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if (xmmsv_get_error(return_value, &err_buf)){
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fprintf(stderr, "Couldn't get the playlist. Are you that playlist \"%s\" exists?\nError: %s\n",
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xplaylist_args.playlist_name, err_buf);
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exit(EXIT_FAILURE);
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}
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if (!xmmsv_get_list_iter (return_value, &iterator)){
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fprintf(stderr, "Couldn't get the list of elements in the playlist.\n");
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exit(EXIT_FAILURE);
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}
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/* For every element in the playlist, add it to the list, and
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keep a count of how many items we have */
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int playlist_size = 0;
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char* media_result;
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for (; xmmsv_list_iter_valid (iterator); xmmsv_list_iter_next(iterator)){
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/* Get the id of the entry */
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int entry_id;
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xmmsv_t *list_entry;
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xmmsv_list_iter_entry(iterator, &list_entry);
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xmmsv_get_int(list_entry, &entry_id);
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if (head_node == NULL){
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/* Start our list */
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head_node = malloc(sizeof(struct medialib_info_node));
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current_node = head_node;
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media_result = get_media_string(connection, entry_id, "url");
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current_node->url = malloc(sizeof(char) * strlen(media_result) + 1);
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strcpy(current_node->url, media_result);
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media_result = get_media_string(connection, entry_id, "title");
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current_node->title = malloc(sizeof(char) * strlen(media_result) + 1);
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strcpy(current_node->title, media_result);
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media_result = get_media_string(connection, entry_id, "artist");
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current_node->artist = malloc(strlen(media_result) + 1);
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strcpy(current_node->artist, media_result);
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current_node->length = get_media_int(connection, entry_id, "duration");
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current_node->length = current_node->length / 1000;
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current_node->next = NULL;
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playlist_size++;
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} else {
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current_node->next = malloc(sizeof(struct medialib_info_node));
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current_node = current_node->next;
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media_result = get_media_string(connection, entry_id, "url");
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current_node->url = malloc(strlen(media_result) + 1);
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strcpy(current_node->url, media_result);
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media_result = get_media_string(connection, entry_id, "title");
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current_node->title = malloc(strlen(media_result) + 1);
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strcpy(current_node->title, media_result);
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media_result = get_media_string(connection, entry_id, "artist");
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current_node->artist = malloc(strlen(media_result) + 1);
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strcpy(current_node->artist, media_result);
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current_node->length = get_media_int(connection, entry_id, "duration");
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current_node->length = current_node->length / 1000;
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current_node->next = NULL;
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playlist_size++;
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}
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}
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bool use_pls = !strcmp(xplaylist_args.output_type, "pls");
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current_node = head_node;
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struct medialib_info_node *temp_node;
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int i = 0;
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for (i; i < playlist_size; i++){
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if (current_node == head_node){
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if (use_pls)
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start_playlist_pls(playlist_size);
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else
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start_playlist_m3u();
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}
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if (use_pls)
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add_playlist_pls(current_node->length, current_node->title, current_node->url);
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else
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add_playlist_m3u(current_node->length, current_node->title, current_node->url, current_node->artist);
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temp_node = current_node;
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current_node = current_node->next;
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free(temp_node->url);
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free(temp_node->title);
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free(temp_node->artist);
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free(temp_node);
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}
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if (use_pls)
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end_playlist_pls();
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else
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end_playlist_m3u();
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xmmsc_result_unref(result);
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return 0;
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//return EXIT_SUCCESS;
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}
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void usage(){
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fprintf(stdout, "Welcome to the XMMS2 playlist creator!\n");
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fprintf(stdout, "This program will output the content of an\n");
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fprintf(stdout, "XMMS2 playlist into something usable by other programs.\n");
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fprintf(stdout, "\nNot that you'd want to use other programs.");
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fprintf(stdout, "\nUsage:\n");
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fprintf(stdout, "\txplaylist_creator [-t <output type>] [-p <playlist_name>] <output_file_name>\n");
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fprintf(stdout, "Options:\n");
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fprintf(stdout, "\t[-p, --playlist]: Playlist name inside XMMS2. Current playlist is used if not specified.\n");
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fprintf(stdout, "\t[-t, --type]: Type of playlist to output. Acceptable values are:\n");
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fprintf(stdout, "\t\tm3u, pls\n");
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fprintf(stdout, "\nAnd that should be it. If there are any issues, feel free to let the XMMS2 team know.\n");
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}
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char* get_media_string(xmmsc_connection_t *connection, int entry_id, const char* information)
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{
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xmmsc_result_t *result;
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xmmsv_t *return_value;
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const char *err_buf;
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xmmsv_t *dict_entry;
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xmmsv_t *infos;
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const char* val;
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char *return_val;
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result = xmmsc_medialib_get_info(connection, entry_id);
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xmmsc_result_wait(result);
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return_value = xmmsc_result_get_value(result);
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if (xmmsv_get_error(return_value, &err_buf)) {
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fprintf(stderr, "Couldn't get %s information for song id %i\n", information, entry_id);
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fprintf(stderr, "Error: %s\n", err_buf);
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}
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infos = xmmsv_propdict_to_dict(return_value, NULL);
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if (!xmmsv_dict_get(infos, information, &dict_entry) ||
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!xmmsv_get_string(dict_entry, &val)) {
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val = "#INVALID ENTRY";
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}
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int string_length = strlen(val);
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return_val = malloc(string_length + 1);
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strncpy(return_val, val, string_length + 1);
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xmmsv_unref(infos);
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xmmsc_result_unref(result);
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/* free(return_val); */
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return return_val;
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}
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int get_media_int(xmmsc_connection_t* connection, int entry_id, const char* information)
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{
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xmmsc_result_t *result;
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xmmsv_t *return_value;
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const char *err_buf;
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xmmsv_t *dict_entry;
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xmmsv_t *infos;
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int val;
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result = xmmsc_medialib_get_info(connection, entry_id);
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xmmsc_result_wait(result);
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return_value = xmmsc_result_get_value(result);
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if (xmmsv_get_error(return_value, &err_buf)) {
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fprintf(stderr, "Couldn't get %s information for song id %i\n", information, entry_id);
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fprintf(stderr, "Error: %s\n", err_buf);
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}
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infos = xmmsv_propdict_to_dict(return_value, NULL);
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if (!xmmsv_dict_get(infos, information, &dict_entry) ||
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!xmmsv_get_int(dict_entry, &val)) {
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val = -2; /* Note that -2 is used since a value of -1 represents a stream - indefinite length */
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}
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xmmsv_unref(infos);
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xmmsc_result_unref(result);
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return val;
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}
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bool start_playlist_m3u(){
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printf("#EXTM3U\n");
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return true;
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}
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bool add_playlist_m3u(int length, const char* title, const char *url, const char *artist){
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printf("#EXTINF: %i,%s - %s\n%s\n", length, artist, title, url);
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return true;
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}
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bool end_playlist_m3u(int playlist_size){
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return true;
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}
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bool start_playlist_pls(int size){
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printf("[playlist]\nNumberOfEntries=%i\n", size);
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return true;
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}
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bool add_playlist_pls(int length, const char* title, const char *url){
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static int entry_no;
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entry_no++;
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printf("File%i=%s\n", entry_no, url);
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printf("Title%i=%s\n", entry_no, title);
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printf("Length%i=%i\n", entry_no, length);
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return true;
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}
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bool end_playlist_pls(){
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printf("Version=2\n");
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return true;
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}
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47
main.h
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47
main.h
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@ -0,0 +1,47 @@
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#include <stdlib.h>
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#include <getopt.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <xmmsclient/xmmsclient.h>
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struct xplaylist_args_t {
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const char *playlist_name; /* -p */
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const char *output_type; /* -t */
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const char *output_filename;
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FILE *out_file;
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} xplaylist_args;
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static const char *xplaylist_opt_string = "p:t:";
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static const struct option xplaylist_long_opts[] =
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{
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{"playlist", required_argument, NULL, 'p'},
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{"type", required_argument, NULL, 't'},
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{"list", no_argument, 0, 'l'},
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{"help", no_argument, NULL, 'h'},
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{NULL, no_argument, 0, 0}
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};
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/* Simple list to append URL's to. */
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struct medialib_info_node {
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char *url;
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char *title;
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char *artist;
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int length;
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struct medialib_info_node *next;
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};
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void usage();
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char* get_media_string(xmmsc_connection_t*, int, const char*);
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int get_media_int(xmmsc_connection_t*, int, const char*);
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bool start_playlist_m3u();
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bool add_playlist_m3u(int, const char*, const char*, const char*);
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bool end_playlist_m3u();
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bool start_playlist_pls(int);
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bool add_playlist_pls(int, const char*, const char *);
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bool end_playlist_pls();
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