diff options
Diffstat (limited to 'sound/decoders/vag.h')
-rw-r--r-- | sound/decoders/vag.h | 37 |
1 files changed, 16 insertions, 21 deletions
diff --git a/sound/decoders/vag.h b/sound/decoders/vag.h index d659a7db4e..7e0ed255be 100644 --- a/sound/decoders/vag.h +++ b/sound/decoders/vag.h @@ -34,31 +34,26 @@ #ifndef SOUND_VAG_H #define SOUND_VAG_H -#include "sound/audiostream.h" -#include "common/stream.h" +namespace Common { + class SeekableReadStream; +} namespace Audio { -class VagStream : public Audio::RewindableAudioStream { -public: - VagStream(Common::SeekableReadStream *stream, int rate = 11025); - ~VagStream(); +class AudioStream; +class RewindableAudioStream; - bool isStereo() const { return false; } - bool endOfData() const { return _stream->pos() == _stream->size(); } - int getRate() const { return _rate; } - int readBuffer(int16 *buffer, const int numSamples); - - bool rewind(); -private: - Common::SeekableReadStream *_stream; - - byte _predictor; - double _samples[28]; - byte _samplesRemaining; - int _rate; - double _s1, _s2; -}; +/** + * Takes an input stream containing Vag sound data and creates + * an RewindableAudioStream from that. + * + * @param stream the SeekableReadStream from which to read the ADPCM data + * @param rate the sampling rate + * @return a new RewindableAudioStream, or NULL, if an error occured + */ +RewindableAudioStream *makeVagStream( + Common::SeekableReadStream *stream, + int rate = 11025); } // End of namespace Sword1 |