diff options
Diffstat (limited to 'libs/taglib/taglib/ogg/vorbis/vorbisproperties.cpp')
| -rw-r--r-- | libs/taglib/taglib/ogg/vorbis/vorbisproperties.cpp | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/libs/taglib/taglib/ogg/vorbis/vorbisproperties.cpp b/libs/taglib/taglib/ogg/vorbis/vorbisproperties.cpp deleted file mode 100644 index 492a0fdccb..0000000000 --- a/libs/taglib/taglib/ogg/vorbis/vorbisproperties.cpp +++ /dev/null @@ -1,185 +0,0 @@ -/*************************************************************************** - copyright : (C) 2002 - 2008 by Scott Wheeler - email : wheeler@kde.org - ***************************************************************************/ - -/*************************************************************************** - * This library is free software; you can redistribute it and/or modify * - * it under the terms of the GNU Lesser General Public License version * - * 2.1 as published by the Free Software Foundation. * - * * - * This library 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 * - * Lesser General Public License for more details. * - * * - * You should have received a copy of the GNU Lesser General Public * - * License along with this library; if not, write to the Free Software * - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * - * USA * - * * - * Alternatively, this file is available under the Mozilla Public * - * License Version 1.1. You may obtain a copy of the License at * - * http://www.mozilla.org/MPL/ * - ***************************************************************************/ - -#include <tstring.h> -#include <tdebug.h> - -#include <oggpageheader.h> - -#include "vorbisproperties.h" -#include "vorbisfile.h" - -using namespace TagLib; - -class Vorbis::Properties::PropertiesPrivate -{ -public: - PropertiesPrivate(File *f, ReadStyle s) : - file(f), - style(s), - length(0), - bitrate(0), - sampleRate(0), - channels(0), - vorbisVersion(0), - bitrateMaximum(0), - bitrateNominal(0), - bitrateMinimum(0) {} - - File *file; - ReadStyle style; - int length; - int bitrate; - int sampleRate; - int channels; - int vorbisVersion; - int bitrateMaximum; - int bitrateNominal; - int bitrateMinimum; -}; - -namespace TagLib { - /*! - * Vorbis headers can be found with one type ID byte and the string "vorbis" in - * an Ogg stream. 0x01 indicates the setup header. - */ - static const char vorbisSetupHeaderID[] = { 0x01, 'v', 'o', 'r', 'b', 'i', 's', 0 }; -} - -//////////////////////////////////////////////////////////////////////////////// -// public members -//////////////////////////////////////////////////////////////////////////////// - -Vorbis::Properties::Properties(File *file, ReadStyle style) : AudioProperties(style) -{ - d = new PropertiesPrivate(file, style); - read(); -} - -Vorbis::Properties::~Properties() -{ - delete d; -} - -int Vorbis::Properties::length() const -{ - return d->length; -} - -int Vorbis::Properties::bitrate() const -{ - return int(float(d->bitrate) / float(1000) + 0.5); -} - -int Vorbis::Properties::sampleRate() const -{ - return d->sampleRate; -} - -int Vorbis::Properties::channels() const -{ - return d->channels; -} - -int Vorbis::Properties::vorbisVersion() const -{ - return d->vorbisVersion; -} - -int Vorbis::Properties::bitrateMaximum() const -{ - return d->bitrateMaximum; -} - -int Vorbis::Properties::bitrateNominal() const -{ - return d->bitrateNominal; -} - -int Vorbis::Properties::bitrateMinimum() const -{ - return d->bitrateMinimum; -} - -//////////////////////////////////////////////////////////////////////////////// -// private members -//////////////////////////////////////////////////////////////////////////////// - -void Vorbis::Properties::read() -{ - // Get the identification header from the Ogg implementation. - - ByteVector data = d->file->packet(0); - - int pos = 0; - - if(data.mid(pos, 7) != vorbisSetupHeaderID) { - debug("Vorbis::Properties::read() -- invalid Vorbis identification header"); - return; - } - - pos += 7; - - d->vorbisVersion = data.mid(pos, 4).toUInt(false); - pos += 4; - - d->channels = uchar(data[pos]); - pos += 1; - - d->sampleRate = data.mid(pos, 4).toUInt(false); - pos += 4; - - d->bitrateMaximum = data.mid(pos, 4).toUInt(false); - pos += 4; - - d->bitrateNominal = data.mid(pos, 4).toUInt(false); - pos += 4; - - d->bitrateMinimum = data.mid(pos, 4).toUInt(false); - - // TODO: Later this should be only the "fast" mode. - d->bitrate = d->bitrateNominal; - - // Find the length of the file. See http://wiki.xiph.org/VorbisStreamLength/ - // for my notes on the topic. - - const Ogg::PageHeader *first = d->file->firstPageHeader(); - const Ogg::PageHeader *last = d->file->lastPageHeader(); - - if(first && last) { - long long start = first->absoluteGranularPosition(); - long long end = last->absoluteGranularPosition(); - - if(start >= 0 && end >= 0 && d->sampleRate > 0) - d->length = (end - start) / (long long) d->sampleRate; - else { - debug("Vorbis::Properties::read() -- Either the PCM values for the start or " - "end of this file was incorrect or the sample rate is zero."); - } - } - else { - debug("Vorbis::Properties::read() -- Could not find valid first and last Ogg pages."); - } -} |