/*
* 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/>.
+ */
+/** @file plugins/tracklength.c
+ * @brief Plugin to compute track lengths
+ *
+ * Currently implements MP3, OGG, FLAC and WAV.
*/
#include <config.h>
#include <vorbis/vorbisfile.h>
#include <mad.h>
+/* libFLAC has had an API change and stupidly taken away the old API */
+#if HAVE_FLAC_FILE_DECODER_H
+# include <FLAC/file_decoder.h>
+#else
+# include <FLAC/stream_decoder.h>
+#define FLAC__FileDecoder FLAC__StreamDecoder
+#define FLAC__FileDecoderState FLAC__StreamDecoderState
+#endif
+
#include <disorder.h>
return duration;
}
+/* libFLAC's "simplified" interface is rather heavyweight... */
+
+struct flac_state {
+ long duration;
+ const char *path;
+};
+
+static void flac_metadata(const FLAC__FileDecoder attribute((unused)) *decoder,
+ const FLAC__StreamMetadata *metadata,
+ void *client_data) {
+ struct flac_state *const state = client_data;
+ const FLAC__StreamMetadata_StreamInfo *const stream_info
+ = &metadata->data.stream_info;
+
+ if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO)
+ /* FLAC uses 0 to mean unknown and conveniently so do we */
+ state->duration = (stream_info->total_samples
+ + stream_info->sample_rate - 1)
+ / stream_info->sample_rate;
+}
+
+static void flac_error(const FLAC__FileDecoder attribute((unused)) *decoder,
+ FLAC__StreamDecoderErrorStatus status,
+ void *client_data) {
+ const struct flac_state *const state = client_data;
+
+ disorder_error(0, "error decoding %s: %s", state->path,
+ FLAC__StreamDecoderErrorStatusString[status]);
+}
+
+static FLAC__StreamDecoderWriteStatus flac_write
+ (const FLAC__FileDecoder attribute((unused)) *decoder,
+ const FLAC__Frame attribute((unused)) *frame,
+ const FLAC__int32 attribute((unused)) *const buffer_[],
+ void attribute((unused)) *client_data) {
+ const struct flac_state *const state = client_data;
+
+ if(state->duration >= 0)
+ return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
+ else
+ return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
+}
+
+static long tl_flac(const char *path) {
+ struct flac_state state[1];
+
+ state->duration = -1; /* error */
+ state->path = path;
+#if HAVE_FLAC_FILE_DECODER_H
+ {
+ FLAC__FileDecoder *fd = 0;
+ FLAC__FileDecoderState fs;
+
+ if(!(fd = FLAC__file_decoder_new())) {
+ disorder_error(0, "FLAC__file_decoder_new failed");
+ goto fail;
+ }
+ if(!(FLAC__file_decoder_set_filename(fd, path))) {
+ disorder_error(0, "FLAC__file_set_filename failed");
+ goto fail;
+ }
+ FLAC__file_decoder_set_metadata_callback(fd, flac_metadata);
+ FLAC__file_decoder_set_error_callback(fd, flac_error);
+ FLAC__file_decoder_set_write_callback(fd, flac_write);
+ FLAC__file_decoder_set_client_data(fd, state);
+ if((fs = FLAC__file_decoder_init(fd))) {
+ disorder_error(0, "FLAC__file_decoder_init: %s",
+ FLAC__FileDecoderStateString[fs]);
+ goto fail;
+ }
+ FLAC__file_decoder_process_until_end_of_metadata(fd);
+fail:
+ if(fd)
+ FLAC__file_decoder_delete(fd);
+ }
+#else
+ {
+ FLAC__StreamDecoder *sd = 0;
+ FLAC__StreamDecoderInitStatus is;
+
+ if(!(sd = FLAC__stream_decoder_new())) {
+ disorder_error(0, "FLAC__stream_decoder_new failed");
+ goto fail;
+ }
+ if((is = FLAC__stream_decoder_init_file(sd, path, flac_write, flac_metadata,
+ flac_error, state))) {
+ disorder_error(0, "FLAC__stream_decoder_init_file %s: %s",
+ path, FLAC__StreamDecoderInitStatusString[is]);
+ goto fail;
+ }
+ FLAC__stream_decoder_process_until_end_of_metadata(sd);
+fail:
+ if(sd)
+ FLAC__stream_decoder_delete(sd);
+ }
+#endif
+ return state->duration;
+}
+
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 }