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Allow reading matroska files with "mp4" ext

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Related to #9010
This commit is contained in:
Nikolaj Olsson 2024-11-17 21:13:58 +01:00
parent 4a8c0be28a
commit 1cf4ccd05b
2 changed files with 18 additions and 1 deletions
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12
src/libse/Common/FileUtil.cs
View File

@ -859,6 +859,18 @@ namespace Nikse.SubtitleEdit.Core.Common
}
}
public static bool IsMatroskaFileFast(string fileName)
{
using (var fs = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
var buffer = new byte[4];
fs.Read(buffer, 0, buffer.Length);
// 1a 45 df a3
return buffer[0] == 0x1a && buffer[1] == 0x45 && buffer[2] == 0xdf && buffer[3] == 0xa3;
}
}
/// <summary>
/// Checks if a file is locked by attempting to open it with exclusive read access.
/// </summary>

7
src/ui/Forms/Main.cs
View File

@ -2952,7 +2952,12 @@ namespace Nikse.SubtitleEdit.Forms
}
}
if (ext == ".mkv" || ext == ".mks")
if (ext == ".mkv" || ext == ".mks" ||
// allow for mkv files with wrong extension
((ext == ".mp4" || ext == ".mov" || ext == ".m4v" || ext == ".wmv") && FileUtil.IsMatroskaFileFast(fileName) && FileUtil.IsMatroskaFile(fileName))
)
{
ImportSubtitleFromMatroskaFile(fileName);
return;