mirror of
https://github.com/libretro/scummvm.git
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77 lines
2.6 KiB
C++
77 lines
2.6 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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#include "common/scummsys.h"
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#include "zvision/video/zork_avi_decoder.h"
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#include "zvision/sound/zork_raw.h"
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#include "common/stream.h"
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#include "audio/audiostream.h"
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#include "audio/decoders/raw.h"
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namespace ZVision {
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Video::AVIDecoder::AVIAudioTrack *ZorkAVIDecoder::createAudioTrack(Video::AVIDecoder::AVIStreamHeader sHeader, Video::AVIDecoder::PCMWaveFormat wvInfo) {
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if (wvInfo.tag != kWaveFormatZorkPCM)
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return new AVIAudioTrack(sHeader, wvInfo, getSoundType());
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assert(wvInfo.size == 8);
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return new ZorkAVIAudioTrack(sHeader, wvInfo, getSoundType());
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}
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ZorkAVIDecoder::ZorkAVIAudioTrack::ZorkAVIAudioTrack(const AVIStreamHeader &streamHeader, const PCMWaveFormat &waveFormat, Audio::Mixer::SoundType soundType) :
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Video::AVIDecoder::AVIAudioTrack(streamHeader, waveFormat, soundType), _queueStream(0), _decoder(waveFormat.channels == 2) {
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}
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void ZorkAVIDecoder::ZorkAVIAudioTrack::createAudioStream() {
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_queueStream = Audio::makeQueuingAudioStream(_wvInfo.samplesPerSec, _wvInfo.channels == 2);
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_audioStream = _queueStream;
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}
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void ZorkAVIDecoder::ZorkAVIAudioTrack::queueSound(Common::SeekableReadStream *stream) {
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RawChunkStream::RawChunk chunk = _decoder.readNextChunk(stream);
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delete stream;
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if (chunk.data) {
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byte flags = Audio::FLAG_16BITS;
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if (_wvInfo.channels == 2)
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flags |= Audio::FLAG_STEREO;
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#ifdef SCUMM_LITTLE_ENDIAN
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// RawChunkStream produces native endianness int16
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flags |= Audio::FLAG_LITTLE_ENDIAN;
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#endif
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_queueStream->queueBuffer((byte *)chunk.data, chunk.size, DisposeAfterUse::YES, flags);
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}
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_curChunk++;
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}
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void ZorkAVIDecoder::ZorkAVIAudioTrack::resetStream() {
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AVIAudioTrack::resetStream();
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_decoder.init();
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}
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} // End of namespace ZVision
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