Implemented Salvaging Strategy 3.
All checks were successful
🚀 Pack skyscraper8 / make-zip (push) Successful in 47s
All checks were successful
🚀 Pack skyscraper8 / make-zip (push) Successful in 47s
This commit is contained in:
parent
a925a3a416
commit
c4c08d1494
@ -2,7 +2,7 @@
|
||||
"profiles": {
|
||||
"skyscraper8": {
|
||||
"commandName": "Project",
|
||||
"commandLineArgs": "\"C:\\Users\\Sascha Schiemann\\Downloads\\65w_fix.ts\"",
|
||||
"commandLineArgs": "salvage strat3 \"Z:\\Persönliches\\Satellitescommunity\\Skyscraper Test Fixture\\105.5E_4169.263_H_5237_(2026-04-24 12.36.13)_dump.ts\"",
|
||||
"remoteDebugEnabled": false
|
||||
},
|
||||
"Container (Dockerfile)": {
|
||||
|
||||
@ -15,6 +15,7 @@ namespace skyscraper8.Skyscraper.IO
|
||||
private bool _positionSupported;
|
||||
private readonly ILog logger = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Name);
|
||||
private long emulatedPosition;
|
||||
private bool canNotReadAnymore;
|
||||
|
||||
public UnseekableInputStream(Stream wrappedStream)
|
||||
{
|
||||
@ -57,6 +58,9 @@ namespace skyscraper8.Skyscraper.IO
|
||||
emulatedPosition += result;
|
||||
}
|
||||
|
||||
if (result == 0 && count > 0)
|
||||
canNotReadAnymore = true;
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
@ -75,7 +79,17 @@ namespace skyscraper8.Skyscraper.IO
|
||||
throw new NotSupportedException();
|
||||
}
|
||||
|
||||
public override bool CanRead => _wrappedStream.CanRead;
|
||||
public override bool CanRead
|
||||
{
|
||||
get
|
||||
{
|
||||
if (canNotReadAnymore)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
public override bool CanSeek => false;
|
||||
public override bool CanWrite => false;
|
||||
|
||||
|
||||
@ -42,6 +42,11 @@ namespace skyscraper8.Skyscraper
|
||||
if (fi.Exists)
|
||||
{
|
||||
InputStream = fi.OpenRead();
|
||||
|
||||
string filename = fi.Name;
|
||||
filename = Path.GetFileNameWithoutExtension(filename);
|
||||
filename = string.Format("{0}_salvaged_{1}_{2}.ts", filename, args[1], DateTime.Now.Ticks);
|
||||
SalvagedOutput = File.OpenWrite(filename);
|
||||
}
|
||||
else
|
||||
{
|
||||
@ -74,6 +79,9 @@ namespace skyscraper8.Skyscraper
|
||||
InputStream = new UnseekableInputStream(InputStream);
|
||||
|
||||
Run();
|
||||
SalvagedOutput?.Flush();
|
||||
SalvagedOutput?.Close();
|
||||
|
||||
}
|
||||
|
||||
private void Run()
|
||||
@ -110,12 +118,64 @@ namespace skyscraper8.Skyscraper
|
||||
case SalvagingStrategy.PatchSyncByte:
|
||||
RunWithPatchingSyncByte();
|
||||
break;
|
||||
case SalvagingStrategy.SeekForSyncByte:
|
||||
RunWithSeekForSyncByte();
|
||||
break;
|
||||
default:
|
||||
logger.ErrorFormat("I'm sorry, but the strategy \"{0}\" is not yet fully implemented.",Strategy);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
private void RunWithSeekForSyncByte()
|
||||
{
|
||||
bool synced = false;
|
||||
while (InputStream.CanRead)
|
||||
{
|
||||
Array.Clear(readBuffer);
|
||||
|
||||
if (InputStream.Read(readBuffer, 0, 1) != 1)
|
||||
return;
|
||||
|
||||
if (readBuffer[0] != 'G') //wrong sync byte
|
||||
{
|
||||
if (synced)
|
||||
{
|
||||
logger.WarnFormat("Lost sync at byte {0}", InputStream.Position - 1);
|
||||
synced = false;
|
||||
}
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
if (InputStream.Read(readBuffer, 1, 3) != 3)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
int tsc = readBuffer[3] & 0xc0;
|
||||
int adaptionField = readBuffer[3] & 0x30;
|
||||
|
||||
tsc >>= 6;
|
||||
adaptionField >>= 4;
|
||||
|
||||
if (tsc == 1)
|
||||
continue;
|
||||
|
||||
if (adaptionField == 0)
|
||||
continue;
|
||||
|
||||
if (InputStream.Read(readBuffer, 4, 184) != 184)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
SalvagedOutput?.Write(readBuffer,0,184);
|
||||
Context.IngestSinglePacket(readBuffer);
|
||||
synced = true;
|
||||
}
|
||||
}
|
||||
|
||||
private void RunWithPatchingSyncByte()
|
||||
{
|
||||
while (readLength == 188)
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user