static void Main(string[] args)
{
const long INBUFF = 16384 * 2 * 2;
int ret;
mpg123clr.mpg.ErrorCode state;
long inoffset,inc = 0;
long outc = 0;
byte[] buf = new byte[INBUFF];
if (args.Length < 2)
{
Console.WriteLine("Please supply in and out filenames\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();
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to create mpg123 handle: " + mpg123error.mpg123_plain_strerror(err));
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0) ;
return;
}
mp.mpg123_param(mpg123clr.mpg.parms.verbose, 4, 0);
err = mp.mpg123_param(mpg123clr.mpg.parms.flags,
(int) (mpg123clr.mpg.param_flags.fuzzy |
mpg123clr.mpg.param_flags.seekbuffer |
mpg123clr.mpg.param_flags.gapless), 0);
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to set library options: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0) ;
return;
}
// Let the seek index auto-grow and contain an entry for every frame
err = mp.mpg123_param(mpg123clr.mpg.parms.index_size, -1, 0);
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to set index size: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0) ;
return;
}
// Use float output formats only
err = mp.mpg123_format_none();
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to disable all output formats: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0) ;
return;
}
int[] rates = mp.mpg123_rates();
foreach (int rate in rates)
{
err = mp.mpg123_format(rate, mpg123clr.mpg.channelcount.both, mpg123clr.mpg.enc.enc_float_32);
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to set float output formats: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0) ;
return;
}
}
err = mp.mpg123_open_feed();
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to open feed: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0) ;
return;
}
string filename = args[0];
BinaryReader _in = new BinaryReader(File.Open(filename, FileMode.Open));
_out = new BinaryWriter(File.Open(args[1], FileMode.Create));
while ((ret = (int)(mp.mpg123_feedseek(95000, SeekOrigin.Begin, out inoffset))) == (int)mpg123clr.mpg.ErrorCode.need_more) // equiv to mpg123_feedseek
{
buf = _in.ReadBytes((int)INBUFF);
if (buf.Length <= 0) break;
inc += buf.Length;
state = mp.mpg123_feed(buf, (uint)buf.Length);
if (state == mpg123clr.mpg.ErrorCode.err)
{
Console.WriteLine("Feed error: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0) ;
return;
}
}
_in.BaseStream.Seek(inoffset, SeekOrigin.Begin);
while (true)
{
buf = _in.ReadBytes((int)INBUFF);
if (buf.Length <= 0) break;
inc += buf.Length;
err = mp.mpg123_feed(buf, (uint)buf.Length);
int num;
uint bytes;
IntPtr audio;
while (err != mpg123clr.mpg.ErrorCode.err && err != mpg123clr.mpg.ErrorCode.need_more)
{
err = mp.mpg123_decode_frame(out num, out audio, out bytes);
if (err == mpg123clr.mpg.ErrorCode.new_format)
{
mp.mpg123_getformat(out rate, out channels, out enc);
initwavformat();
initwav();
}
// (Surprisingly?) even though it does a Marshal.Copy it's as efficient as the pointer example below!!!
if (bytes > 0)
{
byte[] outbuf = new byte[bytes];
Marshal.Copy(audio, outbuf, 0, (int)bytes);
_out.Write(outbuf, 0, (int)bytes);
}
// Alternative example of direct usage of audio data via pointers - note it needs "unsafe"
// and I'm fairly sure pointers should be "fixed" first
// if (bytes > 0)
// unsafe{
// byte* p = (byte*)audio;
// for (int ii = 0; ii < bytes; ii++)
// _out.Write(*p++);
// }
outc += bytes;
}
if (err == mpg123clr.mpg.ErrorCode.err)
{
Console.WriteLine("Error: " + mp.mpg123_strerror());
break;
}
}
Console.WriteLine("Finished");
closewav();
_out.Close();
_in.Close();
mp.mpg123_delete();
mp.Dispose();
mpg123.mpg123_exit();
}
static void Main(string[] args)
{
const long INBUFF = 16384 * 2 * 2;
int ret;
mpg123clr.mpg.ErrorCode state;
long inoffset, inc = 0;
long outc = 0;
byte[] buf = new byte[INBUFF];
if (args.Length < 2)
{
Console.WriteLine("Please supply in and out filenames\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();
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to create mpg123 handle: " + mpg123error.mpg123_plain_strerror(err));
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0)
{
;
}
return;
}
mp.mpg123_param(mpg123clr.mpg.parms.verbose, 4, 0);
err = mp.mpg123_param(mpg123clr.mpg.parms.flags,
(int)(mpg123clr.mpg.param_flags.fuzzy |
mpg123clr.mpg.param_flags.seekbuffer |
mpg123clr.mpg.param_flags.gapless), 0);
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to set library options: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0)
{
;
}
return;
}
// Let the seek index auto-grow and contain an entry for every frame
err = mp.mpg123_param(mpg123clr.mpg.parms.index_size, -1, 0);
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to set index size: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0)
{
;
}
return;
}
// Use float output formats only
err = mp.mpg123_format_none();
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to disable all output formats: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0)
{
;
}
return;
}
int[] rates = mp.mpg123_rates();
foreach (int rate in rates)
{
err = mp.mpg123_format(rate, mpg123clr.mpg.channelcount.both, mpg123clr.mpg.enc.enc_float_32);
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to set float output formats: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0)
{
;
}
return;
}
}
err = mp.mpg123_open_feed();
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to open feed: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0)
{
;
}
return;
}
string filename = args[0];
BinaryReader _in = new BinaryReader(File.Open(filename, FileMode.Open));
_out = new BinaryWriter(File.Open(args[1], FileMode.Create));
while ((ret = (int)(mp.mpg123_feedseek(95000, SeekOrigin.Begin, out inoffset))) == (int)mpg123clr.mpg.ErrorCode.need_more) // equiv to mpg123_feedseek
{
buf = _in.ReadBytes((int)INBUFF);
if (buf.Length <= 0)
{
break;
}
inc += buf.Length;
state = mp.mpg123_feed(buf, (uint)buf.Length);
if (state == mpg123clr.mpg.ErrorCode.err)
{
Console.WriteLine("Feed error: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0)
{
;
}
return;
}
}
_in.BaseStream.Seek(inoffset, SeekOrigin.Begin);
while (true)
{
buf = _in.ReadBytes((int)INBUFF);
if (buf.Length <= 0)
{
break;
}
inc += buf.Length;
err = mp.mpg123_feed(buf, (uint)buf.Length);
int num;
uint bytes;
IntPtr audio;
while (err != mpg123clr.mpg.ErrorCode.err && err != mpg123clr.mpg.ErrorCode.need_more)
{
err = mp.mpg123_decode_frame(out num, out audio, out bytes);
if (err == mpg123clr.mpg.ErrorCode.new_format)
{
mp.mpg123_getformat(out rate, out channels, out enc);
initwavformat();
initwav();
}
// (Surprisingly?) even though it does a Marshal.Copy it's as efficient as the pointer example below!!!
if (bytes > 0)
{
byte[] outbuf = new byte[bytes];
Marshal.Copy(audio, outbuf, 0, (int)bytes);
_out.Write(outbuf, 0, (int)bytes);
}
// Alternative example of direct usage of audio data via pointers - note it needs "unsafe"
// and I'm fairly sure pointers should be "fixed" first
// if (bytes > 0)
// unsafe{
// byte* p = (byte*)audio;
// for (int ii = 0; ii < bytes; ii++)
// _out.Write(*p++);
// }
outc += bytes;
}
if (err == mpg123clr.mpg.ErrorCode.err)
{
Console.WriteLine("Error: " + mp.mpg123_strerror());
break;
}
}
Console.WriteLine("Finished");
closewav();
_out.Close();
_in.Close();
mp.mpg123_delete();
mp.Dispose();
mpg123.mpg123_exit();
}