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/*
DeaDBeeF - ultimate music player for GNU/Linux systems with X11
Copyright (C) 2009 Alexey Yakovenko
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
(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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <vorbis/codec.h>
#include <vorbis/vorbisfile.h>
#include <string.h>
#include <stdlib.h>
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "../../deadbeef.h"
#define min(x,y) ((x)<(y)?(x):(y))
#define max(x,y) ((x)>(y)?(x):(y))
//#define trace(...) { fprintf(stderr, __VA_ARGS__); }
#define trace(fmt,...)
static DB_decoder_t plugin;
static DB_functions_t *deadbeef;
static DB_FILE *file;
static OggVorbis_File vorbis_file;
static vorbis_info *vi;
static int cur_bit_stream;
static int startsample;
static int endsample;
static int currentsample;
static int last_comment_update;
static DB_playItem_t *ptrack;
static void
cvorbis_free (void);
static size_t
cvorbis_fread (void *ptr, size_t size, size_t nmemb, void *datasource) {
return deadbeef->fread (ptr, size, nmemb, datasource);
}
static int
cvorbis_fseek (void *datasource, ogg_int64_t offset, int whence) {
DB_FILE *f = (DB_FILE *)datasource;
if (f->vfs->streaming) {
return -1;
}
return deadbeef->fseek (datasource, offset, whence);
}
static int
cvorbis_fclose (void *datasource) {
deadbeef->fclose (datasource);
return 0;
}
static long
cvorbis_ftell (void *datasource) {
return deadbeef->ftell (datasource);
}
static void
update_vorbis_comments (DB_playItem_t *it, vorbis_comment *vc) {
if (vc) {
deadbeef->pl_delete_all_meta (it);
deadbeef->pl_add_meta (it, "vendor", vc->vendor);
for (int i = 0; i < vc->comments; i++) {
if (!strncasecmp (vc->user_comments[i], "artist=", 7)) {
deadbeef->pl_add_meta (it, "artist", vc->user_comments[i] + 7);
}
else if (!strncasecmp (vc->user_comments[i], "album=", 6)) {
deadbeef->pl_add_meta (it, "album", vc->user_comments[i] + 6);
}
else if (!strncasecmp (vc->user_comments[i], "title=", 6)) {
deadbeef->pl_add_meta (it, "title", vc->user_comments[i] + 6);
}
else if (!strncasecmp (vc->user_comments[i], "date=", 5)) {
deadbeef->pl_add_meta (it, "date", vc->user_comments[i] + 5);
}
else if (!strncasecmp (vc->user_comments[i], "replaygain_album_gain=", 22)) {
it->replaygain_album_gain = atof (vc->user_comments[i] + 22);
}
else if (!strncasecmp (vc->user_comments[i], "replaygain_album_peak=", 22)) {
it->replaygain_album_peak = atof (vc->user_comments[i] + 22);
}
else if (!strncasecmp (vc->user_comments[i], "replaygain_track_gain=", 22)) {
it->replaygain_track_gain = atof (vc->user_comments[i] + 22);
}
else if (!strncasecmp (vc->user_comments[i], "replaygain_track_peak=", 22)) {
it->replaygain_track_peak = atof (vc->user_comments[i] + 22);
}
}
}
deadbeef->pl_add_meta (it, "title", NULL);
}
static int
cvorbis_init (DB_playItem_t *it) {
file = NULL;
vi = NULL;
cur_bit_stream = -1;
ptrack = it;
file = deadbeef->fopen (it->fname);
if (!file) {
return -1;
}
memset (&plugin.info, 0, sizeof (plugin.info));
if (file->vfs->streaming) {
ov_callbacks ovcb = {
.read_func = cvorbis_fread,
.seek_func = NULL,
.close_func = cvorbis_fclose,
.tell_func = NULL
};
int err;
trace ("calling ov_open_callbacks\n");
if (err = ov_open_callbacks (file, &vorbis_file, NULL, 0, ovcb) != 0) {
trace ("ov_open_callbacks returned %d\n", err);
plugin.free ();
return -1;
}
}
else
{
ov_callbacks ovcb = {
.read_func = cvorbis_fread,
.seek_func = cvorbis_fseek,
.close_func = cvorbis_fclose,
.tell_func = cvorbis_ftell
};
trace ("calling ov_open_callbacks\n");
int err;
if (err = ov_open_callbacks (file, &vorbis_file, NULL, 0, ovcb) != 0) {
trace ("ov_open_callbacks returned %d\n", err);
plugin.free ();
return -1;
}
}
vi = ov_info (&vorbis_file, -1);
if (!vi) { // not a vorbis stream
cvorbis_free ();
trace ("not a vorbis stream\n");
return -1;
}
plugin.info.bps = 16;
//plugin.info.dataSize = ov_pcm_total (&vorbis_file, -1) * vi->channels * 2;
plugin.info.channels = vi->channels;
plugin.info.samplerate = vi->rate;
plugin.info.readpos = 0;
currentsample = 0;
if (!file->vfs->streaming) {
if (it->endsample > 0) {
startsample = it->startsample;
endsample = it->endsample;
plugin.seek_sample (0);
}
else {
startsample = 0;
endsample = ov_pcm_total (&vorbis_file, -1)-1;
}
}
else {
startsample = 0;
endsample = ov_pcm_total (&vorbis_file, -1)-1;
if (endsample <= 0) {
endsample = -1;
}
it->duration = -1;
vorbis_comment *vc = ov_comment (&vorbis_file, -1);
update_vorbis_comments (it, vc);
}
return 0;
}
static void
cvorbis_free (void) {
if (file) {
ptrack = NULL;
ov_clear (&vorbis_file);
//fclose (file); //-- ov_clear closes it
file = NULL;
vi = NULL;
}
}
static int
cvorbis_read (char *bytes, int size) {
// trace ("cvorbis_read %d bytes\n", size);
if (!file->vfs->streaming) {
if (currentsample + size / (2 * plugin.info.channels) > endsample) {
size = (endsample - currentsample + 1) * 2 * plugin.info.channels;
// trace ("size truncated to %d bytes, cursample=%d, endsample=%d, totalsamples=%d\n", size, currentsample, endsample, ov_pcm_total (&vorbis_file, -1));
if (size <= 0) {
return 0;
}
}
}
else {
if (ptrack && currentsample - last_comment_update > 5 * plugin.info.samplerate) {
int idx = deadbeef->pl_get_idx_of (ptrack);
if (idx >= 0) {
last_comment_update = currentsample;
vorbis_comment *vc = ov_comment (&vorbis_file, -1);
update_vorbis_comments (ptrack, vc);
deadbeef->sendmessage (M_TRACKCHANGED, 0, idx, 0);
}
else {
ptrack = NULL;
}
}
}
// trace ("cvorbis_read %d bytes[2]\n", size);
int initsize = size;
for (;;)
{
// read ogg
int endianess = 0;
#if WORDS_BIGENDIAN
endianess = 1;
#endif
long ret=ov_read (&vorbis_file, bytes, size, endianess, 2, 1, &cur_bit_stream);
if (ret <= 0)
{
if (ret < 0) {
trace ("ov_read returned %d\n", ret);
switch (ret) {
case OV_HOLE:
trace ("OV_HOLE\n");
break;
case OV_EBADLINK:
trace ("OV_EBADLINK\n");
break;
case OV_EINVAL:
trace ("OV_EINVAL\n");
break;
}
}
if (ret == OV_HOLE) {
continue;
}
// error or eof
break;
}
else if (ret < size)
{
currentsample += ret / (vi->channels * 2);
size -= ret;
bytes += ret;
}
else {
currentsample += ret / (vi->channels * 2);
size = 0;
break;
}
}
plugin.info.readpos = (float)(ov_pcm_tell(&vorbis_file)-startsample)/vi->rate;
// trace ("cvorbis_read got %d bytes\n", initsize-size);
return initsize - size;
}
static int
cvorbis_seek_sample (int sample) {
if (!file) {
return -1;
}
sample += startsample;
int res = ov_pcm_seek (&vorbis_file, sample);
if (res != 0 && res != OV_ENOSEEK)
return -1;
int tell = ov_pcm_tell (&vorbis_file);
if (tell != sample) {
fprintf (stderr, "oggvorbis: failed to do sample-accurate seek (%d->%d)\n", sample, tell);
}
currentsample = sample;
plugin.info.readpos = (float)(ov_pcm_tell(&vorbis_file) - startsample)/vi->rate;
return 0;
}
static int
cvorbis_seek (float time) {
return cvorbis_seek_sample (time * vi->rate);
}
static DB_playItem_t *
cvorbis_insert (DB_playItem_t *after, const char *fname) {
// check for validity
DB_FILE *fp = deadbeef->fopen (fname);
if (!fp) {
fprintf (stderr, "vorbis: failed to fopen %s\n", fname);
return NULL;
}
if (fp->vfs->streaming) {
DB_playItem_t *it = deadbeef->pl_item_alloc ();
it->decoder = &plugin;
it->fname = strdup (fname);
it->filetype = "OggVorbis";
it->duration = -1;
deadbeef->pl_add_meta (it, "title", NULL);
after = deadbeef->pl_insert_item (after, it);
return after;
}
ov_callbacks ovcb = {
.read_func = cvorbis_fread,
.seek_func = cvorbis_fseek,
.close_func = cvorbis_fclose,
.tell_func = cvorbis_ftell
};
OggVorbis_File vorbis_file;
vorbis_info *vi;
ov_open_callbacks (fp, &vorbis_file, NULL, 0, ovcb);
vi = ov_info (&vorbis_file, -1);
if (!vi) { // not a vorbis stream
fprintf (stderr, "vorbis: failed to ov_open %s\n", fname);
return NULL;
}
float duration = ov_time_total (&vorbis_file, -1);
int totalsamples = ov_pcm_total (&vorbis_file, -1);
DB_playItem_t *cue_after = deadbeef->pl_insert_cue (after, fname, &plugin, "OggVorbis", totalsamples, vi->rate);
if (cue_after) {
ov_clear (&vorbis_file);
return cue_after;
}
DB_playItem_t *it = deadbeef->pl_item_alloc ();
it->decoder = &plugin;
it->fname = strdup (fname);
it->filetype = "OggVorbis";
it->duration = duration;
// metainfo
vorbis_comment *vc = ov_comment (&vorbis_file, -1);
update_vorbis_comments (it, vc);
ov_clear (&vorbis_file);
after = deadbeef->pl_insert_item (after, it);
return after;
}
static int
vorbis_trackdeleted (DB_event_song_t *ev, uintptr_t data) {
if (ev->song == ptrack) {
ptrack = NULL;
}
return 0;
}
static int
vorbis_start (void) {
deadbeef->ev_subscribe (DB_PLUGIN (&plugin), DB_EV_TRACKDELETED, DB_CALLBACK (vorbis_trackdeleted), 0);
}
static int
vorbis_stop (void) {
deadbeef->ev_unsubscribe (DB_PLUGIN (&plugin), DB_EV_TRACKDELETED, DB_CALLBACK (vorbis_trackdeleted), 0);
}
static const char * exts[] = { "ogg", NULL };
static const char *filetypes[] = { "OggVorbis", NULL };
// define plugin interface
static DB_decoder_t plugin = {
DB_PLUGIN_SET_API_VERSION
.plugin.version_major = 0,
.plugin.version_minor = 1,
.plugin.type = DB_PLUGIN_DECODER,
.plugin.name = "OggVorbis decoder",
.plugin.author = "Alexey Yakovenko",
.plugin.email = "waker@users.sourceforge.net",
.plugin.website = "http://deadbeef.sf.net",
.plugin.start = vorbis_start,
.plugin.stop = vorbis_stop,
.init = cvorbis_init,
.free = cvorbis_free,
.read_int16 = cvorbis_read,
// vorbisfile can't output float32
// .read_float32 = cvorbis_read_float32,
.seek = cvorbis_seek,
.seek_sample = cvorbis_seek_sample,
.insert = cvorbis_insert,
.exts = exts,
.id = "stdogg",
.filetypes = filetypes
};
DB_plugin_t *
vorbis_load (DB_functions_t *api) {
deadbeef = api;
return DB_PLUGIN (&plugin);
}
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