initial commit

.gitignore

@@ -0,0 +1,2 @@
+config.mk
+mpdart

Makefile

@@ -0,0 +1,11 @@
+.POSIX:
+include config.mk
+all: mpdart config.mk
+mpdart: mpdart.c
+	$(CC) $(CONFIG) $(CFLAGS) $(CXXFLAGS) -o $@ mpdart.c
+clean:
+	rm -f mpdart
+install: mpdart
+	install -Dm755 mpdart $(DESTDIR)$(PREFIX)/bin/mpdart
+uninstall:
+	rm -f $(DESTDIR)$(PREFIX)/bin/mpdart

configure.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+if command -V pkg-config >/dev/null 2>&1; then
+	printf '%s\n' "CONFIG=$(pkg-config libmpdclient --libs --cflags)" > config.mk
+else
+	printf '%s\n' "CONFIG=-lmpdclient" > config.mk
+fi

mpdart.c

@@ -0,0 +1,95 @@
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include <unistd.h>
+
+#include <mpd/client.h>
+
+char* mpd_host = 0;
+unsigned mpd_port = 0;
+unsigned mpd_timeout = 0;
+struct mpd_connection* connection = 0;
+
+char* mpd_db_dir = 0;
+
+int main(int argc, char** argv) {
+
+	/* parse args */
+	while (*++argv) {
+		if (!strcmp(*argv, "-d"))
+			mpd_db_dir = *++argv;
+		else if (!strcmp(*argv, "-h"))
+			mpd_host = *++argv;
+		else if (!strcmp(*argv, "-p") && argv[1])
+			mpd_port = atoi(*++argv);
+		else if (!strcmp(*argv, "-t") && argv[1])
+			mpd_timeout = atoi(*++argv);
+	}
+	
+	if (!mpd_db_dir) {
+		fprintf(stderr, "Please specify mpd music directory with -d\n");
+		exit(1);
+	}
+
+
+	/* strip all '/'es from the end of it */
+	{
+		int i = 0;
+		for (; mpd_db_dir[i]; i++);
+		while (mpd_db_dir[--i] == '/');
+		mpd_db_dir[i+1] = '\0';
+	}
+	
+	connection = mpd_connection_new(mpd_host, mpd_port, mpd_timeout);
+
+	if (!connection) {
+		fprintf(stderr, "Unable to allocate memory for mpd_connection struct\n");
+		exit(1);
+	}
+
+	if (mpd_connection_get_error(connection) != MPD_ERROR_SUCCESS) {
+		fprintf(stderr, "%s\n", mpd_connection_get_error_message(connection));
+		exit(1);
+	}
+
+	const int* version = mpd_connection_get_server_version(connection);
+	printf("Connected to mpd server version %d.%d.%d\n", version[0], version[1], version[2]);
+
+	int song_id;
+	int old_song_id = -1;
+
+	while (1) {
+
+		struct mpd_song* song;
+
+		mpd_send_current_song(connection);
+		song = mpd_recv_song(connection);
+
+		if (!song) {
+			fprintf(stderr, "failed to get mpd song\n");
+			/* TODO clear image */
+			goto wait;
+		}
+
+		song_id = mpd_song_get_id(song);
+
+		if (song_id != old_song_id) {
+			/* TODO render image */
+			printf("Now playing: '%s' by '%s' from '%s/%s'\n",
+					mpd_song_get_tag(song, MPD_TAG_TITLE, 0), 
+					mpd_song_get_tag(song, MPD_TAG_ARTIST, 0), 
+					mpd_db_dir, mpd_song_get_uri(song));
+		}
+
+		old_song_id = song_id;
+
+		mpd_song_free(song);
+
+wait:
+		mpd_send_idle_mask(connection, MPD_IDLE_PLAYER);
+		while (!mpd_recv_idle(connection, 1))
+			sleep(1);
+	}
+
+}