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osu-lazer/osu.Game/Rulesets/Edit/Checks/CheckHitsoundsFormat.cs

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// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System.Collections.Generic;
using System.IO;
using ManagedBass;
using osu.Framework.Audio.Callbacks;
using osu.Game.Beatmaps;
using osu.Game.Extensions;
using osu.Game.Rulesets.Edit.Checks.Components;
namespace osu.Game.Rulesets.Edit.Checks
{
public class CheckHitsoundsFormat : ICheck
{
public CheckMetadata Metadata => new CheckMetadata(CheckCategory.Audio, "Checks for hitsound formats.");
public IEnumerable<IssueTemplate> PossibleTemplates => new IssueTemplate[]
{
new IssueTemplateFormatUnsupported(this),
new IssueTemplateIncorrectFormat(this),
};
public IEnumerable<Issue> Run(BeatmapVerifierContext context)
{
var beatmapSet = context.Beatmap.BeatmapInfo.BeatmapSet;
var audioFile = beatmapSet?.GetFile(context.Beatmap.Metadata.AudioFile);
if (beatmapSet == null) yield break;
foreach (var file in beatmapSet.Files)
{
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if (audioFile != null && ReferenceEquals(file.File, audioFile.File)) continue;
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using (Stream data = context.WorkingBeatmap.GetStream(file.File.GetStoragePath()))
{
if (data == null)
continue;
if (!AudioCheckUtils.HasAudioExtension(file.Filename) || !probablyHasAudioData(data))
continue;
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var fileCallbacks = new FileCallbacks(new DataStreamFileProcedures(data));
int decodeStream = Bass.CreateStream(StreamSystem.NoBuffer, BassFlags.Decode, fileCallbacks.Callbacks, fileCallbacks.Handle);
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// If the format is not supported by BASS
if (decodeStream == 0)
{
yield return new IssueTemplateFormatUnsupported(this).Create(file.Filename);
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continue;
}
var audioInfo = Bass.ChannelGetInfo(decodeStream);
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if ((audioInfo.ChannelType & ChannelType.Wave) == 0 && audioInfo.ChannelType != ChannelType.OGG)
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yield return new IssueTemplateIncorrectFormat(this).Create(file.Filename);
Bass.StreamFree(decodeStream);
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}
}
}
private bool probablyHasAudioData(Stream data) => data.Length > 100;
public class IssueTemplateFormatUnsupported : IssueTemplate
{
public IssueTemplateFormatUnsupported(ICheck check)
: base(check, IssueType.Problem, "\"{0}\" may be corrupt or using a unsupported audio format. Use wav or ogg for hitsounds.")
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{
}
public Issue Create(string file) => new Issue(this, file);
}
public class IssueTemplateIncorrectFormat : IssueTemplate
{
public IssueTemplateIncorrectFormat(ICheck check)
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: base(check, IssueType.Problem, "\"{0}\" is using a incorrect format. Use wav or ogg for hitsounds.")
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{
}
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public Issue Create(string file) => new Issue(this, file);
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}
}
}