scummvm/engines/bladerunner/aud_stream.h
Thanasis Antoniou c19336e469 BLADERUNNER: Prevent cause assertion fault and no subtitles for #11294
Bug #11294 is a case where output audio hardware is disabled

If the output sound device is disabled or no hardware output device is connected (eg. Windows 10 may disable output audio hardware when no output device is attached/available), then the game should still be playable. We now use the duration of the tracks (in ms) to detect a track's ending.
Also isReady is checked for mixer when playing VQA videos (it wasn't before).
2020-02-18 00:58:53 +02:00

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2.1 KiB
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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.
*
*/
#ifndef BLADERUNNER_AUD_STREAM_H
#define BLADERUNNER_AUD_STREAM_H
#include "bladerunner/adpcm_decoder.h"
#include "audio/audiostream.h"
#include "common/endian.h"
#include "common/types.h"
namespace BladeRunner {
class AudioCache;
class AudStream : public Audio::RewindableAudioStream {
byte *_data;
byte *_p;
byte *_end;
AudioCache *_cache;
int32 _hash;
uint16 _deafBlockRemain;
uint16 _frequency;
uint32 _size;
uint32 _sizeDecompressed;
byte _flags;
byte _compressionType;
int _overrideFrequency;
ADPCMWestwoodDecoder _decoder;
void init(byte *data);
public:
AudStream(byte *data, int overrideFrequency = -1);
AudStream(AudioCache *cache, int32 hash, int overrideFrequency = -1);
~AudStream() override;
int readBuffer(int16 *buffer, const int numSamples) override;
bool isStereo() const override { return false; }
int getRate() const override { return _overrideFrequency > 0 ? _overrideFrequency : _frequency; };
bool endOfData() const override { return _p == _end; }
bool rewind() override;
uint32 getLength() const;
};
} // End of namespace BladeRunner
#endif