aaru-dps/Aaru.VideoNow
1
0
Fork 0
mirror of https://github.com/aaru-dps/Aaru.VideoNow.git synced 2025-12-16 11:14:34 +00:00
Code Issues Packages Projects Releases Wiki Activity

Analyze all frames.

Browse Source
This commit is contained in:
Natalia Portillo
2019-01-29 20:42:19 +00:00
parent 385b98208b
commit b245110853
1 changed files with 76 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

82
DiscImageChef.VideoNow/Program.cs
View File

@@ -39,11 +39,14 @@ namespace DiscImageChef.VideoNow
{
static class MainClass
{
const int max_size = 635040000;
static string AssemblyCopyright;
static string AssemblyTitle;
static AssemblyInformationalVersionAttribute AssemblyVersion;
const int max_size = 635040000;
static readonly byte[] frameMarker = { 0xE3, 0x81, 0xC7, 0xE3, 0x81, 0xC7, 0xE3, 0x81};
static readonly byte[] frameMarker =
{
0xE3, 0x81, 0xC7, 0xE3, 0x81, 0xC7, 0xE3, 0x81
};
public static void Main(string[] args)
{
@@ -86,8 +89,8 @@ namespace DiscImageChef.VideoNow
Console.WriteLine("File: {0}", args[0]);
Console.WriteLine("Searching for first frame....");
long framePosition = 0;
byte[] buffer = new byte[frameMarker.Length];
long framePosition = 0;
byte[] buffer = new byte[frameMarker.Length];
while(framePosition < 19600)
{
@@ -105,8 +108,76 @@ namespace DiscImageChef.VideoNow
return;
}
Console.WriteLine("First frame found at {0}", framePosition);
Console.WriteLine("First frame found at {0}", framePosition);
Console.WriteLine("First frame {0} at a sector boundary", framePosition % 2352 == 0 ? "is" : "is not");
int totalFrames = 1;
char progress = ' ';
framePosition += 19600;
while(framePosition + 19600 < fs.Length)
{
switch(totalFrames % 4)
{
case 0:
progress = '-';
break;
case 1:
progress = '\\';
break;
case 2:
progress = '|';
break;
case 3:
progress = '/';
break;
}
Console.Write("\rLooking for more frames {0}", progress);
if(!buffer.SequenceEqual(frameMarker))
{
Console.Write("\r \r");
Console.WriteLine("Frame {0} and the next one are not aligned...", totalFrames);
long expectedFramePosition = framePosition;
while(framePosition < fs.Length)
{
fs.Position = framePosition;
fs.Read(buffer, 0, buffer.Length);
if(buffer.SequenceEqual(frameMarker))
{
totalFrames++;
Console.WriteLine("Frame {1} found at {0}, {2} bytes apart", framePosition, totalFrames,
framePosition - expectedFramePosition);
Console.WriteLine("Frame {1} {0} at a sector boundary",
framePosition % 2352 == 0 ? "is" : "is not", totalFrames);
framePosition += 19600;
break;
}
framePosition++;
}
continue;
}
if(framePosition % 2352 == 0)
{
Console.Write("\r \r");
Console.WriteLine("Frame {0} is at a sector boundary", totalFrames);
}
totalFrames++;
fs.Position = framePosition;
fs.Read(buffer, 0, buffer.Length);
framePosition += 19600;
}
Console.Write("\r \r");
Console.WriteLine("Found {0} frames", totalFrames);
}
static void PrintCopyright()
@@ -115,6 +186,5 @@ namespace DiscImageChef.VideoNow
Console.WriteLine("{0}", AssemblyCopyright);
Console.WriteLine();
}
}
}