146 lines
3.3 KiB
C
146 lines
3.3 KiB
C
#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <regex.h>
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#include <mpd/client.h>
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#define MPDHOST "localhost"
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#define MPDPORT 6600
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struct mpd_connection *get_conn()
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{
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struct mpd_connection *conn;
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conn = mpd_connection_new(MPDHOST, MPDPORT, 1000);
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if (mpd_connection_get_error(conn) != MPD_ERROR_SUCCESS) {
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fprintf(stderr, "Could not connect to mpd: %s\n", mpd_connection_get_error_message(conn));
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mpd_connection_free(conn);
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return NULL;
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}
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return conn;
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}
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void mpdchange(const Arg *direction)
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{
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struct mpd_connection *conn;
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conn = get_conn();
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if (conn == NULL) {
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return;
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}
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if (direction->i > 0) {
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mpd_run_next(conn);
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}
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else {
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mpd_run_previous(conn);
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}
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mpd_connection_free(conn);
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}
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char *get_regerror(int errcode, regex_t *compiled)
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{
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size_t length = regerror(errcode, compiled, NULL, 0);
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char *buffer = malloc(length);
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(void) regerror(errcode, compiled, buffer, length);
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return buffer;
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}
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void mpdcontrol()
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{
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struct mpd_connection *conn;
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struct mpd_status *status;
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struct mpd_song *song;
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enum mpd_state state;
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const char *filename;
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regex_t expr;
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conn = get_conn();
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if (conn == NULL) {
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return;
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}
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status = mpd_run_status(conn);
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if (status == NULL) {
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fprintf(stderr, "Could not get mpd status: %s\n", mpd_status_get_error(status));
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mpd_status_free(status);
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mpd_connection_free(conn);
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return;
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}
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state = mpd_status_get_state(status);
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if (state == MPD_STATE_STOP || state == MPD_STATE_PAUSE) {
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mpd_run_play(conn);
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mpd_status_free(status);
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mpd_connection_free(conn);
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}
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else if (state != MPD_STATE_UNKNOWN) { //playing some music
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song = mpd_run_current_song(conn);
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if (song == NULL){
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fprintf(stderr, "Error fetching current song!\n");
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mpd_song_free(song);
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mpd_status_free(status);
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mpd_connection_free(conn);
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return;
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}
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filename = mpd_song_get_uri(song);
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int errcode = regcomp(&expr, "^[[:alnum:]]+://", REG_EXTENDED|REG_NOSUB);
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if (errcode != 0) {
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char *err = get_regerror(errcode, &expr);
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fprintf(stderr, "Could not compile regexp: %s\n", err);
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mpd_song_free(song);
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mpd_status_free(status);
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mpd_connection_free(conn);
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free(err);
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regfree(&expr);
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return;
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}
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int matchcode = regexec(&expr, filename, 0, NULL, 0);
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if (matchcode == 0) {
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if (strstr(filename, "file://") == filename) { //match just at the start of the filename
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//this means that mpd is playing a file outside the music_dir,
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//but on disk, so we can safely pause
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mpd_run_toggle_pause(conn);
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}
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else {
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mpd_run_stop(conn);
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}
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}
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else if (matchcode == REG_NOMATCH) {
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mpd_run_toggle_pause(conn);
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}
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else {
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char *err = get_regerror(matchcode, &expr);
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fprintf(stderr, "Error while matching regexp: %s\n", err);
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free(err);
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}
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regfree(&expr);
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mpd_song_free(song);
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mpd_status_free(status);
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mpd_connection_free(conn);
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}
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}
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