Leaked source code of windows server 2003
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/*++
Copyright (c) 1995 Microsoft Corporation
Module Name:
cddump.c
Abstract:
dump cd tracks to wav files
Environment:
User mode only
Revision History:
05-26-98 : Created
--*/
#include <windows.h>
#include <stdio.h>
#include <strsafe.h>
#include "wav.h"
ULONG32
DumpWavHeader(
HANDLE OutFile,
ULONG32 Samples,
ULONG32 SamplesPerSecond,
USHORT Channels,
USHORT BitsPerSample
)
{
WAV_HEADER_CHUNK Header;
ULONG32 temp;
Header.ChunkId = ChunkIdRiff;
Header.RiffType = RiffTypeWav;
Header.Format.ChunkId = ChunkIdFormat;
Header.Format.ChunkSize = sizeof(WAV_FORMAT_CHUNK) - (sizeof(ULONG)*2);
Header.Format.FormatTag = FormatTagUncompressed;
Header.Format.BitsPerSample = BitsPerSample;
temp = (BitsPerSample+7)/8; // temp = bytes per sample rounded up
Header.Format.Channels = Channels;
temp *= Channels; // temp = bytes for all channels
if (temp > (USHORT)-1) {
fprintf(stderr, "Bytes for all channels exceeds MAXUSHORT, not a valid "
"option for WAV file\n");
return -1;
}
Header.Format.BlockAlign = (USHORT)temp;
Header.Format.SamplesPerSec = SamplesPerSecond;
Header.Format.AvgBytesPerSec = temp * SamplesPerSecond;
temp *= Samples; // temp = number of total bytes
temp *= 2; // unknown why this is needed.
Header.Data.ChunkSize = temp;
Header.Data.ChunkId = ChunkIdData;
Header.ChunkSize = temp + sizeof(WAV_HEADER_CHUNK); // 54
if (!WriteFile( OutFile, &Header, sizeof(Header), &temp, NULL ) ) {
fprintf(stderr, "Unable to write header\n" );
return -1;
}
return 0;
}
VOID
ReadWavHeader(
HANDLE InFile
)
{
WAV_HEADER_CHUNK Header;
ULONG temp;
if (!ReadFile(InFile, &Header, sizeof(Header), &temp, NULL) ||
temp != sizeof(Header)
) {
fprintf(stderr, "Unable to read header %x\n", GetLastError());
return;
}
if (Header.ChunkId != ChunkIdRiff) {
printf("ChunkId is not RIFF (%x)\n", Header.ChunkId);
return;
}
if (Header.RiffType != RiffTypeWav) {
printf("RiffType is not RiffTypeWav (%x)\n", Header.RiffType);
return;
}
if (Header.Format.ChunkId != ChunkIdFormat) {
printf("Format.ChunkId is not ChunkIdFormat (%x)\n",
Header.Format.ChunkId);
return;
}
if (Header.Format.ChunkSize != sizeof(WAV_FORMAT_CHUNK) - (2*sizeof(ULONG))) {
printf("Format.ChunkSize is not %x (%x)\n",
sizeof(WAV_FORMAT_CHUNK) - (2*sizeof(ULONG)),
Header.Format.ChunkSize);
return;
}
if (Header.Format.FormatTag != FormatTagUncompressed) {
printf("Format. is not Uncompressed (%x)\n", Header.Format.FormatTag);
return;
}
if (Header.Data.ChunkId != ChunkIdData) {
printf("Data.ChunkId is not ChunkIdData (%x)\n",
Header.Data.ChunkId);
return;
}
printf("Uncompressed RIFF/Wav File\n");
printf("\t%2d bits per sample\n", Header.Format.BitsPerSample);
printf("\t%2d channels\n", Header.Format.Channels);
printf("\t%2d samples per second\n", Header.Format.SamplesPerSec);
printf("\t%2d average bytes per second\n", Header.Format.AvgBytesPerSec);
printf("Total data available to player: %d\n", Header.Data.ChunkSize);
temp = Header.Data.ChunkSize / Header.Format.AvgBytesPerSec;
printf("\t%d seconds of audio\n",
temp
);
return;
}