static void Main(string[] args)
{
if (args.Length < 1)
{
Console.WriteLine("\nI will give you the estimated and exact sample lengths of MPEG audio files.\n");
Console.WriteLine("\nUsage: scanclr <mpeg audio file list>\n\n");
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0)
{
;
}
return;
}
mpg123clr.mpg.ErrorCode err;
err = mpg123.mpg123_init();
mpg123 mp = new mpg123();
err = mp.mpg123_new();
mp.mpg123_param(mpg123clr.mpg.parms.resync_limit, -1, 0);
foreach (string name in args)
{
err = mp.mpg123_open(name);
long a, b;
a = mp.mpg123_length();
mp.mpg123_scan();
b = mp.mpg123_length();
mp.mpg123_close();
Console.WriteLine(string.Format("File {0}: estimated {1} vs. scanned {2}", name, a, b));
}
Console.WriteLine("\nPress any key to exit:");
while (Console.Read() == 0)
{
;
}
mp.Dispose();
mpg123.mpg123_exit();
}
static void Main(string[] args)
{
if (args.Length < 1)
{
Console.WriteLine("\nI will give you the estimated and exact sample lengths of MPEG audio files.\n");
Console.WriteLine("\nUsage: scanclr <mpeg audio file list>\n\n");
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0) ;
return;
}
mpg123clr.mpg.ErrorCode err;
err = mpg123.mpg123_init();
mpg123 mp = new mpg123();
err = mp.mpg123_new();
mp.mpg123_param(mpg123clr.mpg.parms.resync_limit, -1, 0);
foreach (string name in args)
{
err = mp.mpg123_open(name);
long a, b;
a = mp.mpg123_length();
mp.mpg123_scan();
b = mp.mpg123_length();
mp.mpg123_close();
Console.WriteLine(string.Format("File {0}: estimated {1} vs. scanned {2}", name, a, b));
}
Console.WriteLine("\nPress any key to exit:");
while (Console.Read() == 0) ;
mp.Dispose();
mpg123.mpg123_exit();
}
static unsafe void RunFrameByFrameTest(string filename)
{
mpg123clr.mpg.ErrorCode err;
mpg123 mp = new mpg123();
err = mp.mpg123_new();
err = mp.mpg123_open(filename);
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Error: " + mp.mpg123_strerror());
}
else
{
Console.WriteLine("Open:");
// Show available decoders
string[] Decoders = mp.mpg123_decoders();
if (Decoders.Length > 0)
{
Console.WriteLine("\nDecoders:");
foreach (string str in Decoders) Console.WriteLine(str);
}
// Show supported decoders
string[] supDecoders = mp.mpg123_supported_decoders();
if (supDecoders.Length > 0)
{
Console.WriteLine("\nSupported Decoders:");
foreach (string str in supDecoders) Console.WriteLine(str);
}
// Show actual decoder
Console.WriteLine("\nDecoder: " + mp.mpg123_current_decoder());
// Show estimated file length
Console.WriteLine("\nLength Estimate: " + mp.mpg123_length().ToString());
// Scan - gets actual details including ID3v2 and Frame offsets
err = mp.mpg123_scan();
// Show actual file length
if (err == mpg123clr.mpg.ErrorCode.ok) Console.WriteLine("Length Actual : " + mp.mpg123_length().ToString());
// Get ID3 data
mpg123clr.id3.mpg123id3v1 iv1;
mpg123clr.id3.mpg123id3v2 iv2;
err = mp.mpg123_id3(out iv1, out iv2);
// Show ID3v2 data
Console.WriteLine("\nTitle : " + iv2.title);
Console.WriteLine("Artist : " + iv2.artist);
Console.WriteLine("Album : " + iv2.album);
Console.WriteLine("Comment: " + iv2.comment);
Console.WriteLine("Year : " + iv2.year);
// Demo seek (back to start of file - note: scan should already have done this)
long pos = mp.mpg123_seek(0, System.IO.SeekOrigin.Begin);
long[] frameindex;
long step;
err = mp.mpg123_index(out frameindex, out step);
if (err == mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("\nFrameIndex:");
foreach (long idx in frameindex)
{
// Console.WriteLine(idx.ToString());
}
}
int num;
uint cnt;
IntPtr audio;
// Walk the file - effectively decode the data without using it...
Console.WriteLine("\nFrame Walking : " + iv2.title);
DateTime dte, dts = DateTime.Now;
while (err == mpg123clr.mpg.ErrorCode.ok || err == mpg123clr.mpg.ErrorCode.new_format)
{
err = mp.mpg123_framebyframe_decode(out num, out audio, out cnt);
err = mp.mpg123_framebyframe_next();
// do something with "audio" here....
}
dte = DateTime.Now;
TimeSpan ts = dte - dts;
Console.WriteLine("Duration: " + ts.ToString());
mp.mpg123_close();
}
mp.Dispose();
}
static unsafe void RunFrameByFrameTest(string filename)
{
mpg123clr.mpg.ErrorCode err;
mpg123 mp = new mpg123();
err = mp.mpg123_new();
err = mp.mpg123_open(filename);
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Error: " + mp.mpg123_strerror());
}
else
{
Console.WriteLine("Open:");
// Show available decoders
string[] Decoders = mp.mpg123_decoders();
if (Decoders.Length > 0)
{
Console.WriteLine("\nDecoders:");
foreach (string str in Decoders)
{
Console.WriteLine(str);
}
}
// Show supported decoders
string[] supDecoders = mp.mpg123_supported_decoders();
if (supDecoders.Length > 0)
{
Console.WriteLine("\nSupported Decoders:");
foreach (string str in supDecoders)
{
Console.WriteLine(str);
}
}
// Show actual decoder
Console.WriteLine("\nDecoder: " + mp.mpg123_current_decoder());
// Show estimated file length
Console.WriteLine("\nLength Estimate: " + mp.mpg123_length().ToString());
// Scan - gets actual details including ID3v2 and Frame offsets
err = mp.mpg123_scan();
// Show actual file length
if (err == mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Length Actual : " + mp.mpg123_length().ToString());
}
// Get ID3 data
mpg123clr.id3.mpg123id3v1 iv1;
mpg123clr.id3.mpg123id3v2 iv2;
err = mp.mpg123_id3(out iv1, out iv2);
// Show ID3v2 data
Console.WriteLine("\nTitle : " + iv2.title);
Console.WriteLine("Artist : " + iv2.artist);
Console.WriteLine("Album : " + iv2.album);
Console.WriteLine("Comment: " + iv2.comment);
Console.WriteLine("Year : " + iv2.year);
// Demo seek (back to start of file - note: scan should already have done this)
long pos = mp.mpg123_seek(0, System.IO.SeekOrigin.Begin);
long[] frameindex;
long step;
err = mp.mpg123_index(out frameindex, out step);
if (err == mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("\nFrameIndex:");
foreach (long idx in frameindex)
{
// Console.WriteLine(idx.ToString());
}
}
int num;
uint cnt;
IntPtr audio;
// Walk the file - effectively decode the data without using it...
Console.WriteLine("\nFrame Walking : " + iv2.title);
DateTime dte, dts = DateTime.Now;
while (err == mpg123clr.mpg.ErrorCode.ok || err == mpg123clr.mpg.ErrorCode.new_format)
{
err = mp.mpg123_framebyframe_decode(out num, out audio, out cnt);
err = mp.mpg123_framebyframe_next();
// do something with "audio" here....
}
dte = DateTime.Now;
TimeSpan ts = dte - dts;
Console.WriteLine("Duration: " + ts.ToString());
mp.mpg123_close();
}
mp.Dispose();
}