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// Copyright (c) 2000-2001 Brad Hughes <bhughes@trolltech.com>
//
// Use, modification and distribution is allowed without limitation,
// warranty, or liability of any kind.
//
#include <qmmp/buffer.h>
#include <qmmp/output.h>
#include <qmmp/recycler.h>
#include <qmmp/fileinfo.h>
#include <QObject>
#include <QIODevice>
#include "decoder_vorbis.h"
// ic functions for OggVorbis
static size_t oggread (void *buf, size_t size, size_t nmemb, void *src)
{
if (! src) return 0;
DecoderVorbis *dogg = (DecoderVorbis *) src;
int len = dogg->input()->read((char *) buf, (size * nmemb));
return len / size;
}
static int oggseek(void *src, int64_t offset, int whence)
{
DecoderVorbis *dogg = (DecoderVorbis *) src;
if ( dogg->input()->isSequential ())
return -1;
long start = 0;
switch (whence)
{
case SEEK_END:
start = dogg->input()->size();
break;
case SEEK_CUR:
start = dogg->input()->pos();
break;
case SEEK_SET:
default:
start = 0;
}
if (dogg->input()->seek(start + offset))
return 0;
return -1;
}
static int oggclose(void *)
{
return 0;
}
static long oggtell(void *src)
{
DecoderVorbis *dogg = (DecoderVorbis *) src;
long t = dogg->input()->pos();
return t;
}
// Decoder class
DecoderVorbis::DecoderVorbis(const QString &url, QIODevice *i)
: Decoder(i)
{
inited = FALSE;
m_totalTime = 0;
m_section = 0;
m_last_section = -1;
m_bitrate = 0;
m_url = url;
}
DecoderVorbis::~DecoderVorbis()
{
deinit();
}
bool DecoderVorbis::initialize()
{
qDebug("DecoderVorbis: initialize");
inited = FALSE;
m_totalTime = 0;
if (!input())
{
qDebug("DecoderVorbis: cannot initialize. No input");
return FALSE;
}
if (!input()->isOpen())
{
if (!input()->open(QIODevice::ReadOnly))
{
qWarning("%s",qPrintable("DecoderVorbis: failed to open input. " +
input()->errorString () + "."));
return FALSE;
}
}
ov_callbacks oggcb =
{
oggread,
oggseek,
oggclose,
oggtell
};
if (ov_open_callbacks(this, &oggfile, NULL, 0, oggcb) < 0)
{
qWarning("DecoderVorbis: cannot open stream");
return FALSE;
}
quint32 freq = 0;
m_bitrate = ov_bitrate(&oggfile, -1) / 1000;
int chan = 0;
if((m_totalTime = ov_time_total(&oggfile, -1) * 1000) < 0)
m_totalTime = 0;
vorbis_info *ogginfo = ov_info(&oggfile, -1);
if (ogginfo)
{
freq = ogginfo->rate;
chan = ogginfo->channels;
}
configure(freq, chan, Qmmp::PCM_S16LE);
inited = true;
return true;
}
qint64 DecoderVorbis::totalTime()
{
if (!inited)
return 0;
return m_totalTime;
}
int DecoderVorbis::bitrate()
{
return m_bitrate;
}
void DecoderVorbis::deinit()
{
if (inited)
ov_clear(&oggfile);
len = 0;
}
void DecoderVorbis::updateTags()
{
int i;
vorbis_comment *comments;
QMap <Qmmp::MetaData, QString> metaData;
comments = ov_comment (&oggfile, -1);
for (i = 0; i < comments->comments; i++)
{
if (!strncasecmp(comments->user_comments[i], "title=",
strlen ("title=")))
metaData.insert(Qmmp::TITLE, QString::fromUtf8(comments->user_comments[i]
+ strlen ("title=")));
else if (!strncasecmp(comments->user_comments[i],
"artist=", strlen ("artist=")))
metaData.insert(Qmmp::ARTIST,
QString::fromUtf8(comments->user_comments[i]
+ strlen ("artist=")));
else if (!strncasecmp(comments->user_comments[i],
"album=", strlen ("album=")))
metaData.insert(Qmmp::ALBUM,
QString::fromUtf8(comments->user_comments[i]
+ strlen ("album=")));
else if (!strncasecmp(comments->user_comments[i],
"comment=", strlen ("comment=")))
metaData.insert(Qmmp::COMMENT,
QString::fromUtf8(comments->user_comments[i]
+ strlen ("comment=")));
else if (!strncasecmp(comments->user_comments[i],
"genre=", strlen ("genre=")))
metaData.insert(Qmmp::GENRE, QString::fromUtf8 (comments->user_comments[i]
+ strlen ("genre=")));
else if (!strncasecmp(comments->user_comments[i],
"tracknumber=",
strlen ("tracknumber=")))
metaData.insert(Qmmp::TRACK, QString::number(atoi(comments->user_comments[i]
+ strlen ("tracknumber="))));
else if (!strncasecmp(comments->user_comments[i],
"track=", strlen ("track=")))
metaData.insert(Qmmp::TRACK, QString::number(atoi(comments->user_comments[i]
+ strlen ("track="))));
else if (!strncasecmp(comments->user_comments[i],
"date=", strlen ("date=")))
metaData.insert(Qmmp::YEAR, QString::number(atoi(comments->user_comments[i]
+ strlen ("date="))));
else if (!strncasecmp(comments->user_comments[i],
"composer=", strlen ("composer=")))
metaData.insert(Qmmp::COMPOSER, QString::fromUtf8 (comments->user_comments[i]
+ strlen ("composer=")));
else if (!strncasecmp(comments->user_comments[i],
"discnumber=", strlen ("discnumber=")))
metaData.insert(Qmmp::DISCNUMBER, QString::number(atoi(comments->user_comments[i]
+ strlen ("discnumber="))));
}
metaData.insert(Qmmp::URL, m_url);
StateHandler::instance()->dispatch(metaData);
}
void DecoderVorbis::seek(qint64 time)
{
ov_time_seek(&oggfile, (double) time/1000);
}
qint64 DecoderVorbis::read(char *data, qint64 maxSize)
{
len = -1;
while (len < 0)
len = ov_read(&oggfile, data, maxSize, 0, 2, 1, &m_section);
if (m_section != m_last_section)
updateTags();
m_last_section = m_section;
if(len > 0)
m_bitrate = ov_bitrate_instant(&oggfile) / 1000;
return len;
}
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