66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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/**
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* @file
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* Sound decoder used in engines:
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* - ultima8 (Crusader: No Regret)
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*/
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#ifndef AUDIO_XAN_DPCM_H
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#define AUDIO_XAN_DPCM_H
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#include "common/scummsys.h"
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#include "common/types.h"
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namespace Common {
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class SeekableReadStream;
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}
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namespace Audio {
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class StatelessPacketizedAudioStream;
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/**
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* Implements the Xan DPCM decoder used in Crusader: No Regret and Wing
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* Commander IV movies. Implementation based on the description on the
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* MultiMedia Wiki:
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* https://wiki.multimedia.cx/index.php/Xan_DPCM
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*/
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class XanDPCMStream : public StatelessPacketizedAudioStream {
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public:
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/**
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* Create a Xan DPCM stream
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* @param rate sampling rate (samples per second)
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* @param channels number of channels to decode
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* @return a new XanDPCMStream, or NULL, if an error occurred
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*/
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XanDPCMStream(int rate, int channels);
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protected:
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virtual AudioStream *makeStream(Common::SeekableReadStream *data) override;
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};
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} // End of namespace Audio
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#endif
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