Split up tracklength module into separate files for each file format.

[disorder] / plugins / tracklength.c

diff --git a/plugins/tracklength.c b/plugins/tracklength.c
index c851f18299f72dd385dd02725b2af491d29a5279..24d22b64b709f3a0fcde2e913812ca1c7c7967d5 100644 (file)
--- a/plugins/tracklength.c
+++ b/plugins/tracklength.c
@@ -1,126 +1,36 @@
 /*
  * This file is part of DisOrder.
- * Portions copyright (C) 2004, 2005 Richard Kettlewell (see also below)
+ * Copyright (C) 2004, 2005, 2007 Richard Kettlewell
  *
- * This program is free software; you can redistribute it and/or modify
+ * 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
+ * the Free Software Foundation, either version 3 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.
- *
+ * 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
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-
-#include <config.h>
-
-#include <string.h>
-#include <stdio.h>
-#include <math.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-#include <errno.h>
-
-#include <vorbis/vorbisfile.h>
-#include <mad.h>
-
-#include <disorder.h>
-
-#include "madshim.h"
-#include "wav.h"
-
-static void *mmap_file(const char *path, size_t *lengthp) {
-  int fd;
-  void *base;
-  struct stat sb;
-  
-  if((fd = open(path, O_RDONLY)) < 0) {
-    disorder_error(errno, "error opening %s", path);
-    return 0;
-  }
-  if(fstat(fd, &sb) < 0) {
-    disorder_error(errno, "error calling stat on %s", path);
-    goto error;
-  }
-  if(sb.st_size == 0)                  /* can't map 0-length files */
-    goto error;
-  if((base = mmap(0, sb.st_size, PROT_READ,
-                 MAP_SHARED, fd, 0)) == (void *)-1) {
-    disorder_error(errno, "error calling mmap on %s", path);
-    goto error;
-  }
-  *lengthp = sb.st_size;
-  close(fd);
-  return base;
-error:
-  close(fd);
-  return 0;
-}
-
-static long tl_mp3(const char *path) {
-  size_t length;
-  void *base;
-  buffer b;
-
-  if(!(base = mmap_file(path, &length))) return -1;
-  b.duration = mad_timer_zero;
-  scan_mp3(base, length, &b);
-  munmap(base, length);
-  return b.duration.seconds + !!b.duration.fraction;
-}
-
-static long tl_ogg(const char *path) {
-  OggVorbis_File vf;
-  FILE *fp = 0;
-  double length;
-
-  if(!path) goto error;
-  if(!(fp = fopen(path, "rb"))) goto error;
-  if(ov_open(fp, &vf, 0, 0)) goto error;
-  fp = 0;
-  length = ov_time_total(&vf, -1);
-  ov_clear(&vf);
-  return ceil(length);
-error:
-  if(fp) fclose(fp);
-  return -1;
-}
-
-static long tl_wav(const char *path) {
-  struct wavfile f[1];
-  int err, sample_frame_size;
-  long duration;
-
-  if((err = wav_init(f, path))) {
-    disorder_error(err, "error opening %s", path); 
-    return -1;
-  }
-  sample_frame_size = (f->bits + 7) / 8 * f->channels;
-  if(sample_frame_size) {
-    const long long n_samples = f->datasize / sample_frame_size;
-    duration = (n_samples + f->rate - 1) / f->rate;
-  } else
-    duration = -1;
-  wav_destroy(f);
-  return duration;
-}
+/** @file plugins/tracklength.c
+ * @brief Plugin to compute track lengths
+ *
+ * Currently implements MP3, OGG, FLAC and WAV.
+ */
+#include "tracklength.h"
 
 static const struct {
   const char *ext;
   long (*fn)(const char *path);
 } file_formats[] = {
+  { ".FLAC", tl_flac },
   { ".MP3", tl_mp3 },
   { ".OGG", tl_ogg },
   { ".WAV", tl_wav },
+  { ".flac", tl_flac },
   { ".mp3", tl_mp3 },
   { ".ogg", tl_ogg },
   { ".wav", tl_wav }