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Check if subtitle file contains only binary zeroes

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niksedk 2015-05-31 19:54:08 +02:00
parent 3b19c51073
commit 36d2aefba8
6 changed files with 39 additions and 0 deletions
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3
LanguageMaster.xml
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@ -1278,6 +1278,9 @@ Continue?</SubtitleAppendPrompt>
<ErrorLoadPng>This file seems to be a PNG image file. Subtitle Edit cannot open PNG files.</ErrorLoadPng>
<ErrorLoadSrr>This file seems to be a ReScene .srr file - not a subtitle file.</ErrorLoadSrr>
<ErrorLoadTorrent>This file seems to be a BitTorrent file - not a subtitle file.</ErrorLoadTorrent>
<ErrorLoadBinaryZeroes>Sorry, this file contains only binary zeroes!
If you have edited this file with Subtitle Edit you might be alble to find a backup via the menu item File -&gt; Restore auto-backup...</ErrorLoadBinaryZeroes>
<NoSupportEncryptedVobSub>Encrypted VobSub content is not supported.</NoSupportEncryptedVobSub>
<NoSupportHereBluRaySup>Blu-ray sup files are not supported here.</NoSupportHereBluRaySup>
<NoSupportHereDvdSup>DVD sup files are not supported here.</NoSupportHereDvdSup>

24
src/Core/FileUtil.cs
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@ -292,5 +292,29 @@ namespace Nikse.SubtitleEdit.Core
}
}
public static bool IsSubtitleFileAllBinaryZeroes(string fileName)
{
using (var fs = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
if (fs.Length < 10)
return false; // too short to be a proper subtitle file
int numberOfBytes = 1;
var buffer = new byte[1024];
while (numberOfBytes > 0)
{
numberOfBytes = fs.Read(buffer, 0, buffer.Length);
for (int i = 0; i < numberOfBytes; i++)
{
if (buffer[i] > 0)
{
return false;
}
}
}
}
return true;
}
}
}

7
src/Forms/Main.cs
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@ -2357,6 +2357,13 @@ namespace Nikse.SubtitleEdit.Forms
return;
}
// check for all binary zeroes (I've heard about this a few times... perhaps related to crashes?)
if (format == null && fi.Length > 50 && FileUtil.IsSubtitleFileAllBinaryZeroes(fileName))
{
MessageBox.Show(_language.ErrorLoadBinaryZeroes);
return;
}
if (format == null && fi.Length < 100 * 1000000 && TransportStreamParser.IsDvbSup(fileName))
{
ImportSubtitleFromDvbSupFile(fileName);

1
src/Logic/Language.cs
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@ -1181,6 +1181,7 @@ namespace Nikse.SubtitleEdit.Logic
ErrorLoadPng = "This file seems to be a PNG image file. Subtitle Edit cannot open PNG files.",
ErrorLoadSrr = "This file seems to be a ReScene .srr file - not a subtitle file.",
ErrorLoadTorrent = "This file seems to be a BitTorrent file - not a subtitle file.",
ErrorLoadBinaryZeroes = "Sorry, this file contains only binary zeroes!\r\n\r\nIf you have edited this file with Subtitle Edit you might be alble to find a backup via the menu item File -> Restore auto-backup...",
NoSupportEncryptedVobSub = "Encrypted VobSub content is not supported.",
NoSupportHereBluRaySup = "Blu-ray sup files are not supported here.",
NoSupportHereDvdSup = "DVD sup files are not supported here.",

3
src/Logic/LanguageDeserializer.cs
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@ -2622,6 +2622,9 @@ namespace Nikse.SubtitleEdit.Logic
case "Main/ErrorLoadTorrent":
language.Main.ErrorLoadTorrent = reader.Value;
break;
case "Main/ErrorLoadBinaryZeroes":
language.Main.ErrorLoadBinaryZeroes = reader.Value;
break;
case "Main/NoSupportEncryptedVobSub":
language.Main.NoSupportEncryptedVobSub = reader.Value;
break;

1
src/Logic/LanguageStructure.cs
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@ -1057,6 +1057,7 @@
public string ErrorLoadPng { get; set; }
public string ErrorLoadSrr { get; set; }
public string ErrorLoadTorrent { get; set; }
public string ErrorLoadBinaryZeroes { get; set; }
public string NoSupportEncryptedVobSub { get; set; }
public string NoSupportHereBluRaySup { get; set; }
public string NoSupportHereDvdSup { get; set; }