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Add File - Open error msg for mp3/wav files

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Somewhat related to #7604
This commit is contained in:
niksedk 2023-11-08 17:13:43 +01:00
parent 34c18566bf
commit a141f8f5ba
2 changed files with 61 additions and 1 deletions
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44
src/libse/Common/FileUtil.cs
View File

@ -149,6 +149,48 @@ namespace Nikse.SubtitleEdit.Core.Common
}
}
public static bool IsMp3(string fileName)
{
using (var fs = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
var buffer = new byte[3];
var count = fs.Read(buffer, 0, buffer.Length);
if (count != buffer.Length)
{
return false;
}
// 0x49 + 0x44 + 0x33 = ID3
return buffer[0] == 0x49 && buffer[1] == 0x44 && buffer[2] == 0x33 && fileName.EndsWith(".mp3", StringComparison.OrdinalIgnoreCase) ||
buffer[0] == 0xff && buffer[1] == 0xfb && fileName.EndsWith(".mp3", StringComparison.OrdinalIgnoreCase);
}
}
public static bool IsWav(string fileName)
{
using (var fs = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
var buffer = new byte[12];
var count = fs.Read(buffer, 0, buffer.Length);
if (count != buffer.Length)
{
return false;
}
return buffer[0] == 0x52 &&
buffer[1] == 0x49 &&
buffer[2] == 0x46 &&
buffer[2] == 0x46 &&
buffer[8] == 0x57 &&
buffer[9] == 0x41 &&
buffer[10] == 0x56 &&
buffer[11] == 0x45 &&
fileName.EndsWith(".wav", StringComparison.OrdinalIgnoreCase);
}
}
public static bool IsRar(string fileName)
{
using (var fs = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
@ -257,7 +299,7 @@ namespace Nikse.SubtitleEdit.Core.Common
}
// allow for some random bytes in the beginning
for (int i = 0; i < 255; i++)
for (var i = 0; i < 255; i++)
{
if (buffer[i] == Packet.SynchronizationByte && buffer[i + 188] == Packet.SynchronizationByte && buffer[i + 188 * 2] == Packet.SynchronizationByte)
{

18
src/ui/Forms/Main.cs
View File

@ -3719,6 +3719,24 @@ namespace Nikse.SubtitleEdit.Forms
return;
}
// check for mp3 file
if (format == null && file.Length > 50 && FileUtil.IsMp3(fileName))
{
MessageBox.Show("This file seems to be an .mp3 audio file which does not contains subtitles." + Environment.NewLine +
Environment.NewLine +
"You can open media files via the Video menu.");
return;
}
// check for wav file
if (format == null && file.Length > 50 && FileUtil.IsWav(fileName))
{
MessageBox.Show("This file seems to be a .wav audio file which does not contains subtitles." + Environment.NewLine +
Environment.NewLine +
"You can open media files via the Video menu.");
return;
}
if (format == null && file.Length < 100 * 1000000 && TransportStreamParser.IsDvbSup(fileName))
{
ImportSubtitleFromDvbSupFile(fileName);