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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "common/scummsys.h"
#include "zvision/video/zork_avi_decoder.h"
#include "zvision/sound/zork_raw.h"
#include "common/stream.h"
#include "audio/audiostream.h"
#include "audio/decoders/raw.h"
namespace ZVision {
Video::AVIDecoder::AVIAudioTrack *ZorkAVIDecoder::createAudioTrack(Video::AVIDecoder::AVIStreamHeader sHeader, Video::AVIDecoder::PCMWaveFormat wvInfo) {
if (wvInfo.tag != kWaveFormatZorkPCM)
return new AVIAudioTrack(sHeader, wvInfo, getSoundType());
assert(wvInfo.size == 8);
return new ZorkAVIAudioTrack(sHeader, wvInfo, getSoundType());
}
ZorkAVIDecoder::ZorkAVIAudioTrack::ZorkAVIAudioTrack(const AVIStreamHeader &streamHeader, const PCMWaveFormat &waveFormat, Audio::Mixer::SoundType soundType) :
Video::AVIDecoder::AVIAudioTrack(streamHeader, waveFormat, soundType), _queueStream(0), _decoder(waveFormat.channels == 2) {
}
void ZorkAVIDecoder::ZorkAVIAudioTrack::createAudioStream() {
_queueStream = Audio::makeQueuingAudioStream(_wvInfo.samplesPerSec, _wvInfo.channels == 2);
_audioStream = _queueStream;
}
void ZorkAVIDecoder::ZorkAVIAudioTrack::queueSound(Common::SeekableReadStream *stream) {
RawChunkStream::RawChunk chunk = _decoder.readNextChunk(stream);
delete stream;
if (chunk.data) {
byte flags = Audio::FLAG_16BITS;
if (_wvInfo.channels == 2)
flags |= Audio::FLAG_STEREO;
#ifdef SCUMM_LITTLE_ENDIAN
// RawChunkStream produces native endianness int16
flags |= Audio::FLAG_LITTLE_ENDIAN;
#endif
_queueStream->queueBuffer((byte *)chunk.data, chunk.size, DisposeAfterUse::YES, flags);
}
_curChunk++;
}
void ZorkAVIDecoder::ZorkAVIAudioTrack::resetStream() {
AVIAudioTrack::resetStream();
_decoder.init();
}
} // End of namespace ZVision
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