问题
My task is to record wave file, convert it to ogg and pack it to the riff container. First two parts were done, but I have problems with the third part. I've found a source code which can solve my problem, but it doesn't work correctly.
#include <windows.h>
#include <windowsx.h>
#include <mmsystem.h>
#include <memory.h>
#include <stdlib.h>
#include <mmreg.h>
#include <msacm.h>
#include <assert.h>
#include <math.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#define INPUT "record.wav"
#define OUTPUT "output_ogg.wav"
/* The following taken from the vorbis.acm sources */
/* Defines modes for encoding. Set this in 'fmt ' */
#define WAVE_FORMAT_VORBIS1 ((WORD)'O'+((WORD)'g'<<8)) // 0x674f("Og") ... Original stream compatible
#define WAVE_FORMAT_VORBIS2 ((WORD)'P'+((WORD)'g'<<8)) // 0x6750("Pg") ... Have independent header
#define WAVE_FORMAT_VORBIS3 ((WORD)'Q'+((WORD)'g'<<8)) // 0x6751("Qg") ... Have no codebook header
#define WAVE_FORMAT_VORBIS1P ((WORD)'o'+((WORD)'g'<<8)) // 0x676f("og") ... Original stream compatible
#define WAVE_FORMAT_VORBIS2P ((WORD)'p'+((WORD)'g'<<8)) // 0x6770("pg") ... Have independent header
#define WAVE_FORMAT_VORBIS3P ((WORD)'q'+((WORD)'g'<<8)) // 0x6771("qg") ... Have no codebook header
/* The 'fact' chunk required for compressed WAV files */
struct FACT {
unsigned long dwID;
unsigned long dwSize;
unsigned long dwSamples;
};
int main()
{
/* Open source file */
HMMIO hSrcWaveFile=mmioOpen(INPUT,NULL,MMIO_READ);
assert(hSrcWaveFile);
MMCKINFO SrcWaveFile;
mmioDescend(hSrcWaveFile,&SrcWaveFile,NULL,0);
assert(SrcWaveFile.ckid==mmioStringToFOURCC("RIFF",MMIO_TOUPPER));
assert(SrcWaveFile.fccType==mmioStringToFOURCC("WAVE",MMIO_TOUPPER));
MMCKINFO SrcWaveFmt;
/* Go to RIFF-WAVE*/
mmioDescend(hSrcWaveFile,&SrcWaveFmt,&SrcWaveFile,0);
assert(SrcWaveFmt.ckid==mmioStringToFOURCC("fmt ",0));
int SrcHeaderSize=SrcWaveFmt.cksize;
if(SrcHeaderSize<sizeof(WAVEFORMATEX))
SrcHeaderSize=sizeof(WAVEFORMATEX);
WAVEFORMATEX *SrcHeader=(WAVEFORMATEX *)new char[SrcHeaderSize];
ZeroMemory(SrcHeader,SrcHeaderSize);
/* Read fmt */
mmioRead(hSrcWaveFile,(char*)SrcHeader,SrcWaveFmt.cksize);
/* Leave the chunk */
mmioAscend(hSrcWaveFile,&SrcWaveFmt,0);
MMCKINFO SrcWaveData;
while(1){
MMRESULT Result=mmioDescend(hSrcWaveFile,&SrcWaveData,&SrcWaveFile,0);
assert(Result==0);
if(SrcWaveData.ckid==mmioStringToFOURCC("data",0))
break;
Result=mmioAscend(hSrcWaveFile,&SrcWaveData, 0);
assert(Result==0);
}
/* Destination header */
WAVEFORMATEX *DstHeader=(WAVEFORMATEX *)malloc(1024);
ZeroMemory(DstHeader,1024);
printf ("Going ACM!\n");
/* Suggest a format for us */
/* Try to coose the nmber 3 mode (whatever that is) */
DstHeader->wFormatTag = WAVE_FORMAT_VORBIS3;
DstHeader->nChannels = 2;
DstHeader->wBitsPerSample = 16;
DstHeader->nSamplesPerSec = 44100;
printf ("->acmFormatSuggest()\n");
if (acmFormatSuggest(NULL,SrcHeader,DstHeader,1024,ACM_FORMATSUGGESTF_WFORMATTAG))
printf ("ERROR: acmFormatSuggest()\n");
/* We shoudl have the DstHeader filled with data byt the ACM now */
/* Open destination */
HMMIO hDstWaveFile;
/* open the destination file */
hDstWaveFile=mmioOpen(OUTPUT,NULL,MMIO_CREATE|MMIO_WRITE);
assert(hDstWaveFile);
printf ("->mmioOpen() output.wav\n");
/* Create chunks */
MMCKINFO DstWaveFile;
DstWaveFile.fccType=mmioStringToFOURCC("WAVE",MMIO_TOUPPER);
mmioCreateChunk(hDstWaveFile,&DstWaveFile,MMIO_CREATERIFF);
printf ("->mmioCreateChunk() WAVE\n");
/* Create format chunk */
MMCKINFO DstWaveFmt;
DstWaveFmt.ckid=mmioStringToFOURCC("fmt ",0);
/* Create chunk write data and Ascend out of it */
mmioCreateChunk(hDstWaveFile,&DstWaveFmt,0);
printf ("->mmioCreateChunk() fmt\n");
mmioWrite(hDstWaveFile,(char*)DstHeader,sizeof(WAVEFORMATEX)+DstHeader->cbSize);
printf ("->mmioWrite() fmt header\n");
mmioAscend(hDstWaveFile,&DstWaveFmt,0);
printf ("->mmioAscend()\n");
/* fact chunk */
/* this is only my idea of what it should look like */
/* i found that some WAV files had more data than i write */
/* but that seems enough for most of apps i tested */
FACT DstFactChunk;
MMCKINFO FactChunk;
DstFactChunk.dwID = mmioStringToFOURCC ("fact", 0);
DstFactChunk.dwSamples = SrcWaveData.cksize / 4;
DstFactChunk.dwSize = sizeof (DstFactChunk) - sizeof (DstFactChunk.dwID) - sizeof (DstFactChunk.dwSize);
FactChunk.ckid = mmioStringToFOURCC ("fact", 0);
FactChunk.cksize = DstFactChunk.dwSize;
/* Calculate the time */
float TIME;
if (SrcHeader->nSamplesPerSec == 44100)
TIME = DstFactChunk.dwSamples / 44100.f;
mmioWrite (hDstWaveFile, (char *)&DstFactChunk, sizeof (DstFactChunk));
/* This ascend produced an error when i added this whole code */
/* to my Dialog based MFC full feature super duper app */
/* Don't know why really but i think that Write already moves the pointer */
/* past the chun sok this is unnecessery */
/* mmioAscend (hDstWaveFile, &FactChunk, 0); */
/* Create Data chunk */
MMCKINFO DstWaveData;
DstWaveData.ckid=mmioStringToFOURCC("data",0);
mmioCreateChunk(hDstWaveFile,&DstWaveData,0);
mmioAscend (hDstWaveFile, &DstWaveData, 0);
printf ("->mmioCreateChunk() data\n");
/* Print the data we have gathered so far */
printf ("------------Source-----------\n");
printf ("Format: \t\t%X\n", SrcHeader->wFormatTag);
printf ("Channels: \t\t%d\n", SrcHeader->nChannels);
printf ("Samples/Sec: \t\t%d\n", SrcHeader->nSamplesPerSec);
printf ("AverageBytes/Sec: \t%d\n", SrcHeader->nAvgBytesPerSec);
printf ("Bits/Sample: \t\t%d\n", SrcHeader->wBitsPerSample);
printf ("BlockAlign: \t\t%d\n", SrcHeader->nBlockAlign);
printf ("DataSize: \t\t%d\n", SrcWaveData.cksize);
printf ("Time: \t\t\t%.3f\n", TIME);
printf ("Samples: \t\t%d\n", DstFactChunk.dwSamples);
printf ("Extra: \t\t\t%d\n", SrcHeader->cbSize);
printf ("------------------------------\n");
printf ("\n------------Destination------\n");
printf ("Format: \t\t%X\n", DstHeader->wFormatTag);
printf ("Channels: \t\t%d\n", DstHeader->nChannels);
printf ("Samples/Sec: \t\t%d\n", DstHeader->nSamplesPerSec);
printf ("AverageBytes/Sec: \t%d\n", DstHeader->nAvgBytesPerSec);
printf ("Bits/Sample: \t\t%d\n", DstHeader->wBitsPerSample);
printf ("BlockAlign: \t\t%d\n", DstHeader->nBlockAlign);
printf ("Extra: \t\t\t%d\n", DstHeader->cbSize);
printf ("------------------------------\n");
DWORD maxFormatSize = 0;
MMRESULT ACMres;
/* Get the max possbile size from the system this really no necessery */
/* but i was experimenting a bit and so I left it here */
ACMres = acmMetrics( NULL, ACM_METRIC_MAX_SIZE_FORMAT, &maxFormatSize );
if (ACMres != MMSYSERR_NOERROR){
printf ("ERROR: acmMetrics()\n");
}
/* Open ACM stream */
HACMSTREAM acm = NULL;
MMRESULT Result=acmStreamOpen(&acm,NULL,SrcHeader,DstHeader,NULL,0,0,0);
printf ("->acmStreamOpen()\n");
if (Result != MMSYSERR_NOERROR){
printf ("ERROR: acmStreamOpen()\n");
exit (-1);
}
/* This is where the problem's begin, first the buffers */
/* Size of the dest/src is based on the size of src/dest */
DWORD DefaultWriteSize;
DWORD DefaultReadSize = SrcHeader->nBlockAlign * 1024;
/* If we know the dest */
/* Result=acmStreamSize(acm, DefaultWriteSize, &DefaultReadSize, ACM_STREAMSIZEF_DESTINATION); */
printf ("->acmStreamSize()\n");
/* If we know the source, well stay with the source PCM is less problematic */
Result = acmStreamSize (acm, DefaultReadSize, &DefaultWriteSize, ACM_STREAMSIZEF_SOURCE);
printf ("->acmStreamSize() gave us buffer size [%d]\n", DefaultWriteSize);
if (Result != MMSYSERR_NOERROR){
printf ("ERROR: acmStreamSize()\n");
exit (-1);
}
/* Allocate memory */
ACMSTREAMHEADER stream;
ZeroMemory(&stream,sizeof(stream));
stream.cbStruct=sizeof(stream);
stream.pbSrc=(BYTE*)GlobalAlloc(GMEM_FIXED,DefaultReadSize);
stream.cbSrcLength=DefaultReadSize;
stream.pbDst=(BYTE*)GlobalAlloc(GMEM_FIXED,DefaultWriteSize);
stream.cbDstLength=DefaultWriteSize;
/* Prepare header */
printf ("->acmStreamPrepareHeader()\n");
Result=acmStreamPrepareHeader(acm, &stream,0);
if (Result != MMSYSERR_NOERROR){
printf ("ERROR: acmStreamPrepareHeader()\n");
exit (-1);
}
/* The main encoding loop */
/* I'm pretty sure that before the actual reading of samples from the source */
/* I should feed the ACM some junk so that it would write the necessery headers */
/* that Ogg Vorbis requires */
/* but i dont know how much of that 'junk' i would have to write there */
/* i don't know if it can be junk */
/* well i'm pretty clueless here */
for(int RemainSize=SrcWaveData.cksize;RemainSize>0;){
// ????
int ReadSize=DefaultReadSize;
if(ReadSize>RemainSize)
ReadSize=RemainSize;
RemainSize-=ReadSize;
ReadSize=mmioRead(hSrcWaveFile,(char*)stream.pbSrc,ReadSize);
if (ReadSize == -1){
printf ("Can't read\n");
break;
}
stream.cbSrcLength=ReadSize;
/* Convert */
Result=acmStreamConvert(acm,&stream,0);
if (Result)
printf ("ERROR: acmStreamConvert()\n");
int WriteSize=stream.cbDstLengthUsed;
/* Wrtie data */
Result=mmioWrite(hDstWaveFile,(char*)stream.pbDst,WriteSize);
if (Result == -1){
printf ("Can't Write");
break;
}
/* Uncomment this if you want to see the buffer sizes */
/* printf ("READ[%d] :: WRITE[%d]\n", stream.cbSrcLengthUsed, stream.cbDstLengthUsed); */
}
/* Cleaup on Isle 5 !!! */
GlobalFree(stream.pbSrc);
GlobalFree(stream.pbDst);
acmStreamUnprepareHeader(acm,&stream,0);
acmStreamClose(acm,0);
mmioAscend(hSrcWaveFile,&SrcWaveData,0);
mmioAscend(hSrcWaveFile,&SrcWaveFile,0);
mmioAscend(hDstWaveFile,&DstWaveData,0);
mmioAscend(hDstWaveFile,&DstWaveFile,0);
free(DstHeader);
mmioClose(hSrcWaveFile,0);
mmioClose(hDstWaveFile,0);
delete[] SrcHeader;
return 0;
}
When I'm trying to execute this program, it shows me that acmFormatSuggest() and acmStreamOpen() failes. Please, help me finding the error.
回答1:
acmFormatSuggest (by the way, what is the error code?) would possibly succeed if there is an ACM audio codec installed, which supports this format. There is no one available by default, do you actually have one installed?
来源：https://stackoverflow.com/questions/7609427/ogg-to-riff-wave-encoding-with-acm