mirror of
https://github.com/WinampDesktop/winamp.git
synced 2024-09-24 15:54:12 +00:00
375 lines
9.5 KiB
C++
375 lines
9.5 KiB
C++
#include "main.h"
|
|
#include "../nsv/enc_if.h"
|
|
|
|
#include <mmreg.h>
|
|
#include <msacm.h>
|
|
#include "WavEncoder.h"
|
|
|
|
|
|
void initWfx();
|
|
|
|
|
|
#define BUFSIZE 0x20000
|
|
|
|
extern EXT_WFX convert_wfx;
|
|
|
|
extern WAVEFORMATEX wfx_default;
|
|
|
|
|
|
static DWORD FileTell(HANDLE hFile) { return SetFilePointer(hFile, 0, 0, FILE_CURRENT);}
|
|
static void FileAlign(HANDLE hFile) {if (FileTell(hFile)&1) SetFilePointer(hFile, 1, 0, FILE_CURRENT);}
|
|
|
|
|
|
#define rev32(X) ((((DWORD)(X)&0xFF)<<24)|(((DWORD)(X)&0xFF00)<<8)|(((DWORD)(X)&0xFF0000)>>8)|(((DWORD)(X)&0xFF000000)>>24))
|
|
|
|
|
|
WavEncoder::WavEncoder(int srate, int nch, int bps, int res_srate , int res_bps, int res_nch )
|
|
{
|
|
m_did_header = 0;
|
|
m_srate = srate;
|
|
m_nch = nch;
|
|
m_bps = bps;
|
|
m_error = 0;
|
|
hStream = 0;
|
|
hStreamResample = 0;
|
|
//_asm { int 3 };
|
|
m_acm_resample_buf = NULL;
|
|
m_acm_resample_outbuf = NULL;
|
|
m_bytes_done = 0;
|
|
m_hlen = 0;
|
|
m_nsam = 0;
|
|
|
|
if (res_srate && (res_srate != srate || res_bps != bps || res_nch != nch))
|
|
{
|
|
//manual resample (ie: burning)
|
|
m_acm_buf = (unsigned char *)malloc(BUFSIZE);
|
|
m_acm_outbuf = (unsigned char *)malloc(BUFSIZE);
|
|
m_bytes_inbuf = 0;
|
|
m_bytes_outbuf = 0;
|
|
m_wfx_src.wFormatTag = WAVE_FORMAT_PCM;
|
|
m_wfx_src.nChannels = nch;
|
|
m_wfx_src.nSamplesPerSec = srate;
|
|
m_wfx_src.nAvgBytesPerSec = srate * nch * (bps >> 3);
|
|
m_wfx_src.nBlockAlign = nch * (bps >> 3);
|
|
m_wfx_src.wBitsPerSample = bps;
|
|
m_wfx_src.cbSize = 0;
|
|
m_convert_wfx.wfx = wfx_default;
|
|
m_convert_wfx.wfx.nSamplesPerSec = res_srate;
|
|
m_convert_wfx.wfx.nChannels = res_nch;
|
|
m_convert_wfx.wfx.wBitsPerSample = res_bps;
|
|
m_convert_wfx.wfx.nAvgBytesPerSec = res_srate * res_nch * (res_bps / 8);
|
|
m_convert_wfx.wfx.nBlockAlign = res_nch * (res_bps / 8);
|
|
m_convert_wfx.wfx.cbSize = 0;
|
|
MMRESULT rs = acmStreamOpen(&hStream, 0, &m_wfx_src, &m_convert_wfx.wfx, 0, 0, 0, ACM_STREAMOPENF_NONREALTIME);
|
|
if (rs || !hStream)
|
|
{
|
|
m_error = 1;
|
|
return ;
|
|
}
|
|
ZeroMemory(&ahd, sizeof(ahd));
|
|
ahd.cbStruct = sizeof(ahd);
|
|
ahd.pbSrc = m_acm_buf;
|
|
ahd.cbSrcLength = BUFSIZE;
|
|
ahd.pbDst = m_acm_outbuf;
|
|
ahd.cbDstLength = BUFSIZE;
|
|
if (acmStreamPrepareHeader(hStream, &ahd, 0)) m_error = 1;
|
|
return ;
|
|
}
|
|
|
|
//resample defined in config
|
|
|
|
// fucko: don't use compression settings if we're in a sep process, just generate raw wav
|
|
// sep process isn't the best way, but we'll give it a shot
|
|
if (!config_wav_convert)
|
|
{
|
|
m_acm_buf = NULL;
|
|
m_acm_outbuf = NULL;
|
|
}
|
|
else
|
|
{
|
|
m_acm_buf = (unsigned char *)malloc(BUFSIZE);
|
|
m_acm_outbuf = (unsigned char *)malloc(BUFSIZE);
|
|
m_bytes_inbuf = 0;
|
|
m_bytes_outbuf = 0;
|
|
initWfx();
|
|
m_convert_wfx = convert_wfx;
|
|
|
|
m_wfx_src.wFormatTag = WAVE_FORMAT_PCM;
|
|
m_wfx_src.nChannels = nch;
|
|
m_wfx_src.nSamplesPerSec = srate;
|
|
m_wfx_src.nAvgBytesPerSec = srate * nch * (bps >> 3);
|
|
m_wfx_src.nBlockAlign = nch * (bps >> 3);
|
|
m_wfx_src.wBitsPerSample = bps;
|
|
m_wfx_src.cbSize = 0;
|
|
MMRESULT rs = acmStreamOpen(&hStream, 0, &m_wfx_src, &m_convert_wfx.wfx, 0, 0, 0, ACM_STREAMOPENF_NONREALTIME);
|
|
if (rs)
|
|
{
|
|
// need resampling
|
|
WAVEFORMATEX wfx1;
|
|
ZeroMemory(&wfx1, sizeof(wfx1));
|
|
wfx1.wFormatTag = WAVE_FORMAT_PCM;
|
|
if (acmFormatSuggest(0, &m_convert_wfx.wfx, &wfx1, sizeof(WAVEFORMATEX), ACM_FORMATSUGGESTF_WFORMATTAG)) m_error = 1;
|
|
else if (acmStreamOpen(&hStream, 0, &wfx1, &m_convert_wfx.wfx, 0, 0, 0, ACM_STREAMOPENF_NONREALTIME)) m_error = 1;
|
|
else if (acmStreamOpen(&hStreamResample, 0, &m_wfx_src, &wfx1, 0, 0, 0, ACM_STREAMOPENF_NONREALTIME)) m_error = 1;
|
|
else
|
|
{
|
|
ZeroMemory(&ahdResample, sizeof(ahdResample));
|
|
ahdResample.cbStruct = sizeof(ahdResample);
|
|
ahdResample.pbSrc = m_acm_resample_buf = (unsigned char *)malloc(BUFSIZE);
|
|
ahdResample.cbSrcLength = BUFSIZE;
|
|
ahdResample.pbDst = m_acm_resample_outbuf = (unsigned char *)malloc(BUFSIZE);
|
|
ahdResample.cbDstLength = BUFSIZE;
|
|
if (acmStreamPrepareHeader(hStreamResample, &ahdResample, 0)) m_error = 1;
|
|
m_bytes_inbuf_resample = 0;
|
|
m_bytes_outbuf_resample = 0;
|
|
}
|
|
}
|
|
|
|
if (!hStream)
|
|
{
|
|
m_error = 1;
|
|
return ;
|
|
}
|
|
|
|
ZeroMemory(&ahd, sizeof(ahd));
|
|
ahd.cbStruct = sizeof(ahd);
|
|
ahd.pbSrc = m_acm_buf;
|
|
ahd.cbSrcLength = BUFSIZE;
|
|
ahd.pbDst = m_acm_outbuf;
|
|
ahd.cbDstLength = BUFSIZE;
|
|
if (acmStreamPrepareHeader(hStream, &ahd, 0)) m_error = 1;
|
|
}
|
|
}
|
|
|
|
WavEncoder::~WavEncoder()
|
|
{
|
|
free(m_acm_buf);
|
|
free(m_acm_outbuf);
|
|
free(m_acm_resample_buf);
|
|
free(m_acm_resample_outbuf);
|
|
if (hStream)
|
|
{
|
|
if (ahd.fdwStatus & ACMSTREAMHEADER_STATUSF_PREPARED) acmStreamUnprepareHeader(hStream, &ahd, 0);
|
|
acmStreamClose(hStream, 0);
|
|
}
|
|
if (hStreamResample)
|
|
{
|
|
if (ahdResample.fdwStatus & ACMSTREAMHEADER_STATUSF_PREPARED) acmStreamUnprepareHeader(hStreamResample, &ahdResample, 0);
|
|
acmStreamClose(hStreamResample, 0);
|
|
}
|
|
}
|
|
|
|
int WavEncoder::Encode(int framepos, void *in, int in_avail, int *in_used, void *out, int out_avail)
|
|
{
|
|
char *pin = (char *)in;
|
|
char *pout = (char *)out;
|
|
int retval = 0;
|
|
|
|
if (!m_did_header && config_wav_do_header)
|
|
{
|
|
int s = 44;
|
|
if (hStream)
|
|
{
|
|
s = 4 + 4 + 12 - 4;
|
|
|
|
int t;
|
|
if (m_convert_wfx.wfx.wFormatTag == WAVE_FORMAT_PCM) t = 0x10;
|
|
else t = sizeof(WAVEFORMATEX) + m_convert_wfx.wfx.cbSize;
|
|
s += 4 + t;
|
|
if (s&1) s++;
|
|
|
|
if (m_convert_wfx.wfx.wFormatTag != WAVE_FORMAT_PCM)
|
|
s += 12;
|
|
|
|
s += 8;
|
|
}
|
|
if (out_avail < s) return 0;
|
|
//xx bytes of randomness
|
|
m_hlen = s;
|
|
m_did_header = 1;
|
|
out_avail -= s;
|
|
pout += s;
|
|
retval = s;
|
|
}
|
|
|
|
if (!hStream)
|
|
{
|
|
//no ACM conversion
|
|
int l = min(out_avail, in_avail);
|
|
memcpy(pout, pin, l);
|
|
*in_used = l;
|
|
m_bytes_done += l;
|
|
return l;
|
|
}
|
|
|
|
if (!m_bytes_outbuf)
|
|
{
|
|
if (hStreamResample)
|
|
{
|
|
if (!m_bytes_outbuf_resample)
|
|
{
|
|
DWORD flags = ACM_STREAMCONVERTF_BLOCKALIGN;
|
|
|
|
int l = min(in_avail, BUFSIZE - m_bytes_inbuf_resample);
|
|
if (l < 0) l = 0;
|
|
if (l > 0) memcpy(m_acm_resample_buf + m_bytes_inbuf_resample, in, l);
|
|
m_bytes_inbuf_resample += l;
|
|
*in_used = l;
|
|
m_nsam += l;
|
|
|
|
ahdResample.cbSrcLength = m_bytes_inbuf_resample;
|
|
acmStreamConvert(hStreamResample, &ahdResample, flags);
|
|
m_bytes_inbuf_resample -= ahdResample.cbSrcLengthUsed;
|
|
memcpy(m_acm_resample_buf, m_acm_resample_buf + ahdResample.cbSrcLengthUsed, m_bytes_inbuf_resample); //memmove
|
|
m_bytes_outbuf_resample = ahdResample.cbDstLengthUsed;
|
|
}
|
|
in = (void*)m_acm_resample_outbuf;
|
|
in_avail = m_bytes_outbuf_resample;
|
|
m_bytes_outbuf_resample = 0;
|
|
in_used = NULL;
|
|
}
|
|
|
|
DWORD flags = ACM_STREAMCONVERTF_BLOCKALIGN;
|
|
|
|
int l = min(in_avail, BUFSIZE - m_bytes_inbuf);
|
|
if (l < 0) l = 0;
|
|
if (l > 0) memcpy(m_acm_buf + m_bytes_inbuf, in, l);
|
|
m_bytes_inbuf += l;
|
|
if (in_used)
|
|
{
|
|
*in_used = l;
|
|
m_nsam += l;
|
|
}
|
|
|
|
if (m_bytes_inbuf)
|
|
{
|
|
ahd.cbSrcLength = m_bytes_inbuf;
|
|
acmStreamConvert(hStream, &ahd, flags);
|
|
m_bytes_inbuf -= ahd.cbSrcLengthUsed;
|
|
memcpy(m_acm_buf, m_acm_buf + ahd.cbSrcLengthUsed, m_bytes_inbuf); //memmove
|
|
m_bytes_outbuf = ahd.cbDstLengthUsed;
|
|
m_bytes_done += l;
|
|
}
|
|
}
|
|
if (m_bytes_outbuf)
|
|
{
|
|
int l = min(out_avail, m_bytes_outbuf);
|
|
memcpy(pout, m_acm_outbuf, l);
|
|
m_bytes_outbuf -= l;
|
|
memcpy(m_acm_outbuf, m_acm_outbuf + l, m_bytes_outbuf);
|
|
retval += l;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
void WavEncoder::FinishAudio(HANDLE fh, WavEncoder *coder)
|
|
{
|
|
if (!config_wav_do_header) return ;
|
|
|
|
int len, i;
|
|
const unsigned char ispred1[4] = {0x52 , 0x49 , 0x46 , 0x46 };
|
|
const unsigned char ispred2[12] = {0x57, 0x41 , 0x56 , 0x45 , 0x66 , 0x6d , 0x74 , 0x20 , 0x10 , 0x0 , 0x0 , 0x0 };
|
|
char c;
|
|
int bps = coder->m_bps;
|
|
int srate = coder->m_srate;
|
|
int nch = coder->m_nch;
|
|
len = coder->m_bytes_done;
|
|
DWORD a;
|
|
|
|
FileAlign(fh);
|
|
|
|
SetFilePointer(fh, 0, 0, FILE_BEGIN);
|
|
|
|
WriteFile(fh, ispred1, sizeof(ispred1), &a, NULL);
|
|
i = len + (m_hlen) - 8;
|
|
if (i&1) i++;
|
|
WriteFile(fh, &i, 4, &a, NULL);
|
|
WriteFile(fh, ispred2, sizeof(ispred2) - (hStream ? 4 : 0), &a, NULL);
|
|
if (!hStream)
|
|
{
|
|
c = 1;
|
|
WriteFile(fh, &c, 1, &a, NULL);
|
|
c = 0;
|
|
WriteFile(fh, &c, 1, &a, NULL);
|
|
c = nch;
|
|
WriteFile(fh, &c, 1, &a, NULL);
|
|
c = 0;
|
|
WriteFile(fh, &c, 1, &a, NULL);
|
|
for (i = 0;i < 32;i += 8)
|
|
{
|
|
c = (srate >> i) & 0xff;
|
|
WriteFile(fh, &c, 1, &a, NULL);
|
|
}
|
|
int tmp = srate * nch * (bps / 8);
|
|
for (i = 0;i < 32;i += 8)
|
|
{
|
|
c = (tmp >> i) & 0xff;
|
|
WriteFile(fh, &c, 1, &a, NULL);
|
|
}
|
|
tmp = (bps / 8) * nch;
|
|
for (i = 0;i < 16;i += 8)
|
|
{
|
|
c = (tmp >> i) & 0xff;
|
|
WriteFile(fh, &c, 1, &a, NULL);
|
|
}
|
|
c = bps;
|
|
WriteFile(fh, &c, 1, &a, NULL);
|
|
c = 0;
|
|
WriteFile(fh, &c, 1, &a, NULL);
|
|
|
|
const unsigned char iza[4] = {0x64 , 0x61 , 0x74 , 0x61};
|
|
WriteFile(fh, iza, 4, &a, NULL);
|
|
|
|
for (i = 0;i < 32;i += 8)
|
|
{
|
|
c = (len >> i) & 0xff;
|
|
WriteFile(fh, &c, 1, &a, NULL);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
int t;
|
|
if (m_convert_wfx.wfx.wFormatTag == WAVE_FORMAT_PCM) t = 0x10;
|
|
else t = sizeof(WAVEFORMATEX) + m_convert_wfx.wfx.cbSize;
|
|
WriteFile(fh, &t, 4, &a, 0);
|
|
WriteFile(fh, &m_convert_wfx.wfx, t, &a, 0);
|
|
|
|
FileAlign(fh);
|
|
|
|
DWORD fact_ofs = 0;
|
|
if (m_convert_wfx.wfx.wFormatTag != WAVE_FORMAT_PCM)
|
|
{
|
|
t = rev32('fact');
|
|
WriteFile(fh, &t, 4, &a, 0);
|
|
t = 4;
|
|
WriteFile(fh, &t, 4, &a, 0);
|
|
fact_ofs = FileTell(fh);
|
|
SetFilePointer(fh, 4, 0, FILE_CURRENT);
|
|
}
|
|
|
|
t = rev32('data');
|
|
WriteFile(fh, &t, 4, &a, 0);
|
|
DWORD data_ofs = FileTell(fh);
|
|
|
|
{
|
|
DWORD t, bw;
|
|
SetFilePointer(fh, 4, 0, FILE_BEGIN);
|
|
t = GetFileSize(fh, 0) - 8;
|
|
WriteFile(fh, &t, 4, &bw, 0);
|
|
DWORD data_size = GetFileSize(fh, 0) - (data_ofs + 4);
|
|
SetFilePointer(fh, data_ofs, 0, FILE_BEGIN);
|
|
WriteFile(fh, &data_size, 4, &bw, 0);
|
|
if (fact_ofs)
|
|
{
|
|
SetFilePointer(fh, fact_ofs, 0, FILE_BEGIN);
|
|
t = coder->m_nsam / ((coder->m_bps >> 3) * coder->m_nch);
|
|
WriteFile(fh, &t, 4, &bw, 0);
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
|
|
int WavEncoder::GetLastError() { return m_error; }
|