* This file is part of DisOrder.
* 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>
-/* 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>
-
-#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;
-}
-
-/* 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;
-}
+/** @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;
~mdw / disorder / blobdiff