public static Stream AddPreviewDecoder(FormatData data, AudioFormat format, ProgressIndicator progress)
{
if (data.Song.PreviewTimes != null)
{
MultiDecoder multi = new MultiDecoder(RawkAudio.Decoder.BufferSize);
multi.AddDecoder(format.Decoder);
Stream previewstream = new TemporaryStream();
PlatformRB2WiiCustomDLC.TranscodePreview(data.Song.PreviewTimes, format.Mappings, format.Decoder, previewstream, progress);
previewstream.Position = 0;
IDecoder previewdecoder = new RawkAudio.Decoder(previewstream, RawkAudio.Decoder.AudioFormat.VorbisOgg);
multi.AddDecoder(previewdecoder);
format.Mappings.Add(new AudioFormat.Mapping(0, previewdecoder.Channels == 1 ? 0 : -1, Instrument.Preview));
if (previewdecoder.Channels == 2)
{
format.Mappings.Add(new AudioFormat.Mapping(0, 1, Instrument.Preview));
}
format.Decoder = multi;
multi.Seek(0);
return(previewstream);
}
return(null);
}
public override AudioFormat DecodeAudio(FormatData data, ProgressIndicator progress)
{
AudioFormat format = DecodeFormat(data);
Stream audio = data.GetStream(this, AudioName);
uint magic = new EndianReader(audio, Endianness.BigEndian).ReadUInt32();
if (magic != 0x5241574b && (magic & 0xFFFFFF00) != 0x42494b00)
{
throw new FormatException(); // Must start with "RAWK" or "BIK", this is to prevent encrypted biks from being decoded
}
audio.Position = 0;
Stream preview = null;
format.Decoder = new RawkAudio.Decoder(audio, RawkAudio.Decoder.AudioFormat.BinkAudio);
if (data.HasStream(this, PreviewName))
{
preview = data.GetStream(this, PreviewName);
magic = new EndianReader(preview, Endianness.BigEndian).ReadUInt32();
preview.Position = 0;
if (magic != 0x5241574b && (magic & 0xFFFFFF00) != 0x42494b00)
{
throw new FormatException();
}
IDecoder decoder = new RawkAudio.Decoder(preview, RawkAudio.Decoder.AudioFormat.BinkAudio);
MultiDecoder multi = new MultiDecoder(RawkAudio.Decoder.BufferSize);
multi.AddDecoder(format.Decoder);
multi.AddDecoder(decoder);
format.Decoder = multi;
}
format.SetDisposeStreams(data, new Stream[] { audio, preview });
Game game = data.Song.Game;
if (NeversoftMetadata.IsGuitarHero4(game) || NeversoftMetadata.IsGuitarHero5(game))
{
format.Decoder = new AmplifyDecoder(format.Decoder, 1.30f);
}
return(format);
}
public override AudioFormat DecodeAudio(FormatData data, ProgressIndicator progress)
{
if (!data.HasStream(this, AudioName))
{
return(null);
}
AudioFormat format = DecodeAudioFormat(data);
Stream audio = GetDecryptedAudioStream(data);
Stream preview = GetDecryptedPreviewStream(data);
List <Stream> streams = new List <Stream>();
if (audio is CryptedMoggStream)
{
streams.Add((audio as CryptedMoggStream).Base);
}
if (preview is CryptedMoggStream)
{
streams.Add((preview as CryptedMoggStream).Base);
}
format.Decoder = AudioFormatOgg.Instance.DecodeOggAudio(audio, preview);
MultiDecoder multi = format.Decoder as MultiDecoder;
if (multi != null)
{
IDecoder decoder = multi.Decoders[1];
for (int i = 0; i < decoder.Channels; i++)
{
format.Mappings.Add(new AudioFormat.Mapping(0, decoder.Channels == 1 ? 0 : (i == 0 ? -1 : 1), Instrument.Preview));
}
}
format.SetDisposeStreams(data, streams);
return(format);
}
