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Revert "FLAC decoder optimisations, resulting in bigger file size but fixed stutter"

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This reverts commit d4569dbc84.

FLAC fixed properly now
This commit is contained in:
Silent 2014-06-13 16:41:41 +02:00
parent d4569dbc84
commit 36fb6daa37
1 changed files with 49 additions and 351 deletions
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392
SilentPatch/AudioHardware.cpp
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@ -18,6 +18,8 @@ FLAC__StreamDecoderReadStatus CAEFLACDecoder::read_cb(const FLAC__StreamDecoder*
CAEFLACDecoder* pClientData = static_cast<CAEFLACDecoder*>(client_data); CAEFLACDecoder* pClientData = static_cast<CAEFLACDecoder*>(client_data);
ReadFile(pClientData->GetStream()->GetFile(), buffer, *bytes, reinterpret_cast<LPDWORD>(bytes), nullptr); //*bytes = pClientData->GetStream()->FillBuffer(buffer, *bytes); ReadFile(pClientData->GetStream()->GetFile(), buffer, *bytes, reinterpret_cast<LPDWORD>(bytes), nullptr); //*bytes = pClientData->GetStream()->FillBuffer(buffer, *bytes);
//*bytes = pClientData->GetStream()->FillBuffer(buffer, *bytes);
//bEOFFlag = GetLastError() == ERROR_HANDLE_EOF;
auto result = *bytes ? FLAC__STREAM_DECODER_READ_STATUS_CONTINUE : FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM; auto result = *bytes ? FLAC__STREAM_DECODER_READ_STATUS_CONTINUE : FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
@ -26,12 +28,11 @@ FLAC__StreamDecoderReadStatus CAEFLACDecoder::read_cb(const FLAC__StreamDecoder*
static FLAC__int32* pMalloc = nullptr; static FLAC__int32* pMalloc = nullptr;
static unsigned int nBlockSize = 0; static unsigned int nBlockSize = 0;
static unsigned int nSamplesLeftToProcess = 0; static unsigned int nSamplesLeftToProcess = 0;
FLAC__StreamDecoderWriteStatus CAEFLACDecoder::write_cb(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 *const buffer[], void *client_data) FLAC__StreamDecoderWriteStatus CAEFLACDecoder::write_cb(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 *const buffer[], void *client_data)
{ {
UNREFERENCED_PARAMETER(decoder);
CAEFLACDecoder* pClientData = static_cast<CAEFLACDecoder*>(client_data); CAEFLACDecoder* pClientData = static_cast<CAEFLACDecoder*>(client_data);
// Obtain current sample // Obtain current sample
@ -63,8 +64,6 @@ FLAC__StreamDecoderWriteStatus CAEFLACDecoder::write_cb(const FLAC__StreamDecode
void CAEFLACDecoder::meta_cb(const FLAC__StreamDecoder* decoder, const FLAC__StreamMetadata *metadata, void *client_data) void CAEFLACDecoder::meta_cb(const FLAC__StreamDecoder* decoder, const FLAC__StreamMetadata *metadata, void *client_data)
{ {
UNREFERENCED_PARAMETER(decoder);
if ( metadata->type == FLAC__METADATA_TYPE_STREAMINFO ) if ( metadata->type == FLAC__METADATA_TYPE_STREAMINFO )
{ {
// Cache the header // Cache the header
@ -75,8 +74,6 @@ void CAEFLACDecoder::meta_cb(const FLAC__StreamDecoder* decoder, const FLAC__Str
FLAC__StreamDecoderSeekStatus CAEFLACDecoder::seek_cb(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data) FLAC__StreamDecoderSeekStatus CAEFLACDecoder::seek_cb(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
{ {
UNREFERENCED_PARAMETER(decoder);
CAEFLACDecoder* pClientData = static_cast<CAEFLACDecoder*>(client_data); CAEFLACDecoder* pClientData = static_cast<CAEFLACDecoder*>(client_data);
LARGE_INTEGER li; LARGE_INTEGER li;
li.QuadPart = absolute_byte_offset; li.QuadPart = absolute_byte_offset;
@ -88,8 +85,6 @@ FLAC__StreamDecoderSeekStatus CAEFLACDecoder::seek_cb(const FLAC__StreamDecoder
FLAC__StreamDecoderTellStatus CAEFLACDecoder::tell_cb(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data) FLAC__StreamDecoderTellStatus CAEFLACDecoder::tell_cb(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
{ {
UNREFERENCED_PARAMETER(decoder);
CAEFLACDecoder* pClientData = static_cast<CAEFLACDecoder*>(client_data); CAEFLACDecoder* pClientData = static_cast<CAEFLACDecoder*>(client_data);
LARGE_INTEGER li; LARGE_INTEGER li;
li.QuadPart = 0; li.QuadPart = 0;
@ -102,8 +97,6 @@ FLAC__StreamDecoderTellStatus CAEFLACDecoder::tell_cb(const FLAC__StreamDecoder
FLAC__StreamDecoderLengthStatus CAEFLACDecoder::length_cb(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data) FLAC__StreamDecoderLengthStatus CAEFLACDecoder::length_cb(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data)
{ {
UNREFERENCED_PARAMETER(decoder);
CAEFLACDecoder* pClientData = static_cast<CAEFLACDecoder*>(client_data); CAEFLACDecoder* pClientData = static_cast<CAEFLACDecoder*>(client_data);
LARGE_INTEGER li; LARGE_INTEGER li;
@ -129,6 +122,7 @@ void CAEFLACDecoder::error_cb(const FLAC__StreamDecoder* decoder, FLAC__StreamDe
UNREFERENCED_PARAMETER(client_data); UNREFERENCED_PARAMETER(client_data);
} }
bool CAEFLACDecoder::Initialise() bool CAEFLACDecoder::Initialise()
{ {
pFLACDecoder = FLAC__stream_decoder_new(); pFLACDecoder = FLAC__stream_decoder_new();
@ -136,32 +130,27 @@ bool CAEFLACDecoder::Initialise()
{ {
FLAC__stream_decoder_process_until_end_of_metadata(pFLACDecoder); FLAC__stream_decoder_process_until_end_of_metadata(pFLACDecoder);
return pStreamInfo->data.stream_info.sample_rate <= 48000 && (pStreamInfo->data.stream_info.bits_per_sample == 8 || pStreamInfo->data.stream_info.bits_per_sample == 16 || pStreamInfo->data.stream_info.bits_per_sample == 24); return /*pStreamInfo->data.stream_info.sample_rate <= 48000 &&*/ (pStreamInfo->data.stream_info.bits_per_sample == 8 || pStreamInfo->data.stream_info.bits_per_sample == 16 || pStreamInfo->data.stream_info.bits_per_sample == 24);
} }
return false; return false;
} }
/*unsigned int CAEFLACDecoder::FillBuffer(void* pBuf, unsigned long nLen) unsigned int CAEFLACDecoder::FillBuffer(void* pBuf, unsigned long nLen)
{ {
//unsigned int nSigLen = nLen / 4;
unsigned int nBytesDecoded = 0; unsigned int nBytesDecoded = 0;
unsigned int nSampleRate = pStreamInfo->data.stream_info.bits_per_sample;
FLAC__int16* pBuffer = static_cast<FLAC__int16*>(pBuf); FLAC__int16* pBuffer = static_cast<FLAC__int16*>(pBuf);
bool bStereo = pStreamInfo->data.stream_info.channels > 1;
const unsigned int nSampleRate = pStreamInfo->data.stream_info.bits_per_sample;
const bool bStereo = pStreamInfo->data.stream_info.channels > 1;
while ( nBytesDecoded < nLen ) while ( nBytesDecoded < nLen )
{ {
static FLAC__int32* pCurrentPtr[2];
unsigned int nToWrite; unsigned int nToWrite;
// No samples left from a previous fetch? // No samples left from a previous fetch?
if ( !nSamplesLeftToProcess ) if ( !nSamplesLeftToProcess )
{ {
FLAC__stream_decoder_process_single(pFLACDecoder); FLAC__stream_decoder_process_single(pFLACDecoder);
pCurrentPtr[0] = pMalloc;
pCurrentPtr[1] = pMalloc+nBlockSize;
if ( (nLen - nBytesDecoded) / 4 >= nBlockSize ) if ( (nLen - nBytesDecoded) / 4 >= nBlockSize )
nToWrite = nBlockSize; nToWrite = nBlockSize;
else else
@ -172,379 +161,88 @@ bool CAEFLACDecoder::Initialise()
else else
nToWrite = nSamplesLeftToProcess; nToWrite = nSamplesLeftToProcess;
FLAC__int32* pCurrentPtr[2] = { pMalloc, pMalloc+nBlockSize };
const unsigned int ExtraIndex = nBlockSize - nSamplesLeftToProcess;
// Write channels // Write channels
if ( nSampleRate == 8 )
{
// 8-bit
if ( bStereo ) if ( bStereo )
{ {
// Stereo
if ( nSampleRate == 8 )
{
// 8-bit
for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- ) for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- )
{ {
pBuffer[0] = *pCurrentPtr[0]++ << 8; pBuffer[0] = pCurrentPtr[0][ExtraIndex+i] << 8;
pBuffer[1] = *pCurrentPtr[1]++ << 8; pBuffer[1] = pCurrentPtr[1][ExtraIndex+i] << 8;
pBuffer += 2; pBuffer += 2;
} }
} }
else
{
for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- )
{
pBuffer[0] = pBuffer[1] = pCurrentPtr[0][ExtraIndex+i] << 8;
pBuffer += 2;
}
}
}
else if ( nSampleRate == 24 ) else if ( nSampleRate == 24 )
{ {
// 24-bit // 24-bit
if ( bStereo )
{
for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- ) for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- )
{ {
pBuffer[0] = *pCurrentPtr[0]++ >> 8; pBuffer[0] = pCurrentPtr[0][ExtraIndex+i] >> 8;
pBuffer[1] = *pCurrentPtr[1]++ >> 8; pBuffer[1] = pCurrentPtr[1][ExtraIndex+i] >> 8;
pBuffer += 2; pBuffer += 2;
} }
} }
else else
{ {
// 16-bit
for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- ) for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- )
{ {
pBuffer[0] = *pCurrentPtr[0]++; pBuffer[0] = pBuffer[1] = pCurrentPtr[0][ExtraIndex+i] >> 8;
pBuffer[1] = *pCurrentPtr[1]++;
pBuffer += 2; pBuffer += 2;
} }
} }
} }
else else
{
// Mono
if ( nSampleRate == 8 )
{
// 8-bit
for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- )
{
pBuffer[0] = pBuffer[1] = *pCurrentPtr[0]++ << 8;
pBuffer += 2;
}
}
else if ( nSampleRate == 24 )
{
// 24-bit
for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- )
{
pBuffer[0] = pBuffer[1] = *pCurrentPtr[0]++ >> 8;
pBuffer += 2;
}
}
else
{ {
// 16-bit // 16-bit
if ( bStereo )
{
for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- ) for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- )
{ {
pBuffer[0] = pBuffer[1] = *pCurrentPtr[0]++; pBuffer[0] = pCurrentPtr[0][ExtraIndex+i];
pBuffer[1] = pCurrentPtr[1][ExtraIndex+i];
pBuffer += 2;
}
}
else
{
for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- )
{
pBuffer[0] = pBuffer[1] = pCurrentPtr[0][ExtraIndex+i];
pBuffer += 2; pBuffer += 2;
} }
} }
} }
//nSigLen -= nToWrite;
nBytesDecoded += nToWrite*4; nBytesDecoded += nToWrite*4;
if ( FLAC__stream_decoder_get_state(pFLACDecoder) == FLAC__STREAM_DECODER_END_OF_STREAM ) if ( FLAC__stream_decoder_get_state(pFLACDecoder) == FLAC__STREAM_DECODER_END_OF_STREAM )
break; break;
} }
return nBytesDecoded;//nSigLen > 0 ? nLen - nBytesDecoded : nLen;
}*/
// Separated functions for maximum decoding performance
static FLAC__int32* pCurrentPtr[2];
static unsigned int DecodeMono8bit(FLAC__StreamDecoder* pDecoder, void* pBuf, unsigned long nLen)
{
unsigned int nBytesDecoded = 0;
FLAC__int16* pBuffer = static_cast<FLAC__int16*>(pBuf);
while ( nBytesDecoded < nLen )
{
unsigned int nToWrite;
// No samples left from a previous fetch?
if ( !nSamplesLeftToProcess )
{
FLAC__stream_decoder_process_single(pDecoder);
pCurrentPtr[0] = pMalloc;
pCurrentPtr[1] = pMalloc+nBlockSize;
if ( (nLen - nBytesDecoded) / 4 >= nBlockSize )
nToWrite = nBlockSize;
else
nToWrite = (nLen - nBytesDecoded) / 4;
nSamplesLeftToProcess = nBlockSize;
}
else
nToWrite = nSamplesLeftToProcess;
// Write channels
for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- )
{
pBuffer[0] = pBuffer[1] = *pCurrentPtr[0]++ << 8;
pBuffer += 2;
}
nBytesDecoded += nToWrite*4;
if ( FLAC__stream_decoder_get_state(pDecoder) == FLAC__STREAM_DECODER_END_OF_STREAM )
break;
}
return nBytesDecoded; return nBytesDecoded;
} }
static unsigned int DecodeMono16bit(FLAC__StreamDecoder* pDecoder, void* pBuf, unsigned long nLen)
{
unsigned int nBytesDecoded = 0;
FLAC__int16* pBuffer = static_cast<FLAC__int16*>(pBuf);
while ( nBytesDecoded < nLen )
{
unsigned int nToWrite;
// No samples left from a previous fetch?
if ( !nSamplesLeftToProcess )
{
FLAC__stream_decoder_process_single(pDecoder);
pCurrentPtr[0] = pMalloc;
pCurrentPtr[1] = pMalloc+nBlockSize;
if ( (nLen - nBytesDecoded) / 4 >= nBlockSize )
nToWrite = nBlockSize;
else
nToWrite = (nLen - nBytesDecoded) / 4;
nSamplesLeftToProcess = nBlockSize;
}
else
nToWrite = nSamplesLeftToProcess;
// Write channels
for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- )
{
pBuffer[0] = pBuffer[1] = *pCurrentPtr[0]++;
pBuffer += 2;
}
nBytesDecoded += nToWrite*4;
if ( FLAC__stream_decoder_get_state(pDecoder) == FLAC__STREAM_DECODER_END_OF_STREAM )
break;
}
return nBytesDecoded;
}
static unsigned int DecodeMono24bit(FLAC__StreamDecoder* pDecoder, void* pBuf, unsigned long nLen)
{
unsigned int nBytesDecoded = 0;
FLAC__int16* pBuffer = static_cast<FLAC__int16*>(pBuf);
while ( nBytesDecoded < nLen )
{
unsigned int nToWrite;
// No samples left from a previous fetch?
if ( !nSamplesLeftToProcess )
{
FLAC__stream_decoder_process_single(pDecoder);
pCurrentPtr[0] = pMalloc;
pCurrentPtr[1] = pMalloc+nBlockSize;
if ( (nLen - nBytesDecoded) / 4 >= nBlockSize )
nToWrite = nBlockSize;
else
nToWrite = (nLen - nBytesDecoded) / 4;
nSamplesLeftToProcess = nBlockSize;
}
else
nToWrite = nSamplesLeftToProcess;
// Write channels
for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- )
{
pBuffer[0] = pBuffer[1] = *pCurrentPtr[0]++ >> 8;
pBuffer += 2;
}
nBytesDecoded += nToWrite*4;
if ( FLAC__stream_decoder_get_state(pDecoder) == FLAC__STREAM_DECODER_END_OF_STREAM )
break;
}
return nBytesDecoded;
}
static unsigned int DecodeStereo8bit(FLAC__StreamDecoder* pDecoder, void* pBuf, unsigned long nLen)
{
unsigned int nBytesDecoded = 0;
FLAC__int16* pBuffer = static_cast<FLAC__int16*>(pBuf);
while ( nBytesDecoded < nLen )
{
unsigned int nToWrite;
// No samples left from a previous fetch?
if ( !nSamplesLeftToProcess )
{
FLAC__stream_decoder_process_single(pDecoder);
pCurrentPtr[0] = pMalloc;
pCurrentPtr[1] = pMalloc+nBlockSize;
if ( (nLen - nBytesDecoded) / 4 >= nBlockSize )
nToWrite = nBlockSize;
else
nToWrite = (nLen - nBytesDecoded) / 4;
nSamplesLeftToProcess = nBlockSize;
}
else
nToWrite = nSamplesLeftToProcess;
// Write channels
for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- )
{
pBuffer[0] = *pCurrentPtr[0]++ << 8;
pBuffer[1] = *pCurrentPtr[1]++ << 8;
pBuffer += 2;
}
nBytesDecoded += nToWrite*4;
if ( FLAC__stream_decoder_get_state(pDecoder) == FLAC__STREAM_DECODER_END_OF_STREAM )
break;
}
return nBytesDecoded;
}
static unsigned int DecodeStereo16bit(FLAC__StreamDecoder* pDecoder, void* pBuf, unsigned long nLen)
{
unsigned int nBytesDecoded = 0;
FLAC__int16* pBuffer = static_cast<FLAC__int16*>(pBuf);
while ( nBytesDecoded < nLen )
{
unsigned int nToWrite;
// No samples left from a previous fetch?
if ( !nSamplesLeftToProcess )
{
FLAC__stream_decoder_process_single(pDecoder);
pCurrentPtr[0] = pMalloc;
pCurrentPtr[1] = pMalloc+nBlockSize;
if ( (nLen - nBytesDecoded) / 4 >= nBlockSize )
nToWrite = nBlockSize;
else
nToWrite = (nLen - nBytesDecoded) / 4;
nSamplesLeftToProcess = nBlockSize;
}
else
nToWrite = nSamplesLeftToProcess;
// Write channels
for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- )
{
//*pBuffer++ = *pCurrentPtr[0]++ + (*pCurrentPtr[1]++ << 16);
pBuffer[0] = *pCurrentPtr[0]++;
pBuffer[1] = *pCurrentPtr[1]++;
pBuffer += 2;
}
nBytesDecoded += nToWrite*4;
if ( FLAC__stream_decoder_get_state(pDecoder) == FLAC__STREAM_DECODER_END_OF_STREAM )
break;
}
return nBytesDecoded;
}
static unsigned int DecodeStereo24bit(FLAC__StreamDecoder* pDecoder, void* pBuf, unsigned long nLen)
{
unsigned int nBytesDecoded = 0;
FLAC__int16* pBuffer = static_cast<FLAC__int16*>(pBuf);
while ( nBytesDecoded < nLen )
{
unsigned int nToWrite;
// No samples left from a previous fetch?
if ( !nSamplesLeftToProcess )
{
FLAC__stream_decoder_process_single(pDecoder);
pCurrentPtr[0] = pMalloc;
pCurrentPtr[1] = pMalloc+nBlockSize;
if ( (nLen - nBytesDecoded) / 4 >= nBlockSize )
nToWrite = nBlockSize;
else
nToWrite = (nLen - nBytesDecoded) / 4;
nSamplesLeftToProcess = nBlockSize;
}
else
nToWrite = nSamplesLeftToProcess;
// Write channels
for ( unsigned int i = 0; i < nToWrite; i++, nSamplesLeftToProcess-- )
{
pBuffer[0] = *pCurrentPtr[0]++ >> 8;
pBuffer[1] = *pCurrentPtr[1]++ >> 8;
pBuffer += 2;
}
nBytesDecoded += nToWrite*4;
if ( FLAC__stream_decoder_get_state(pDecoder) == FLAC__STREAM_DECODER_END_OF_STREAM )
break;
}
return nBytesDecoded;
}
unsigned int CAEFLACDecoder::FillBuffer(void* pBuf, unsigned long nLen)
{
unsigned int nSampleRate = pStreamInfo->data.stream_info.bits_per_sample;
bool bStereo = pStreamInfo->data.stream_info.channels > 1;
if ( bStereo )
{
if ( nSampleRate == 8 )
return DecodeStereo8bit(pFLACDecoder, pBuf, nLen);
if ( nSampleRate == 24 )
return DecodeStereo24bit(pFLACDecoder, pBuf, nLen);
return DecodeStereo16bit(pFLACDecoder, pBuf, nLen);
}
if ( nSampleRate == 8 )
return DecodeMono8bit(pFLACDecoder, pBuf, nLen);
if ( nSampleRate == 24 )
return DecodeMono24bit(pFLACDecoder, pBuf, nLen);
return DecodeMono16bit(pFLACDecoder, pBuf, nLen);
}
CAEFLACDecoder::~CAEFLACDecoder() CAEFLACDecoder::~CAEFLACDecoder()
{ {
nSamplesLeftToProcess = 0; nSamplesLeftToProcess = 0;