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/********************************************************
DirectShow audio decoder
Copyright 2001 Eugene Kuznetsov (divx@euro.ru)
*********************************************************/
#include "config.h"
#include "dshow/libwin32.h"
#ifdef WIN32_LOADER
#include "ldt_keeper.h"
#endif
#include "DMO_Filter.h"
#include "DMO_AudioDecoder.h"
struct DMO_AudioDecoder
{
DMO_MEDIA_TYPE m_sOurType, m_sDestType;
DMO_Filter* m_pDMO_Filter;
char* m_sVhdr;
char* m_sVhdr2;
int m_iFlushed;
};
#include "DMO_AudioDecoder.h"
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "mp_msg.h"
typedef long STDCALL (*GETCLASS) (GUID*, GUID*, void**);
extern void print_wave_header(WAVEFORMATEX *h, int verbose_level);
DMO_AudioDecoder * DMO_AudioDecoder_Open(char* dllname, GUID* guid, WAVEFORMATEX* wf,int out_channels)
//DMO_AudioDecoder * DMO_AudioDecoder_Create(const CodecInfo * info, const WAVEFORMATEX* wf)
{
DMO_AudioDecoder *this;
int sz;
WAVEFORMATEX* pWF;
#ifdef WIN32_LOADER
Setup_LDT_Keeper();
Setup_FS_Segment();
#endif
this = malloc(sizeof(DMO_AudioDecoder));
this->m_iFlushed=1;
sz = 18 + wf->cbSize;
this->m_sVhdr = malloc(sz);
memcpy(this->m_sVhdr, wf, sz);
this->m_sVhdr2 = malloc(18);
memcpy(this->m_sVhdr2, this->m_sVhdr, 18);
pWF = (WAVEFORMATEX*)this->m_sVhdr2;
pWF->wFormatTag = 1;
pWF->wBitsPerSample = 16;
pWF->nChannels = out_channels;
pWF->nBlockAlign = 2*pWF->nChannels; //pWF->nChannels * (pWF->wBitsPerSample + 7) / 8;
pWF->nAvgBytesPerSec = pWF->nBlockAlign * pWF->nSamplesPerSec;
pWF->cbSize = 0;
memset(&this->m_sOurType, 0, sizeof(this->m_sOurType));
this->m_sOurType.majortype=MEDIATYPE_Audio;
this->m_sOurType.subtype=MEDIASUBTYPE_PCM;
this->m_sOurType.subtype.f1=wf->wFormatTag;
this->m_sOurType.formattype=FORMAT_WaveFormatEx;
this->m_sOurType.lSampleSize=wf->nBlockAlign;
this->m_sOurType.bFixedSizeSamples=1;
this->m_sOurType.bTemporalCompression=0;
this->m_sOurType.cbFormat=sz;
this->m_sOurType.pbFormat=this->m_sVhdr;
memset(&this->m_sDestType, 0, sizeof(this->m_sDestType));
this->m_sDestType.majortype=MEDIATYPE_Audio;
this->m_sDestType.subtype=MEDIASUBTYPE_PCM;
this->m_sDestType.formattype=FORMAT_WaveFormatEx;
this->m_sDestType.bFixedSizeSamples=1;
this->m_sDestType.bTemporalCompression=0;
this->m_sDestType.lSampleSize=pWF->nBlockAlign;
this->m_sDestType.cbFormat=18; //pWF->cbSize;
this->m_sDestType.pbFormat=this->m_sVhdr2;
print_wave_header((WAVEFORMATEX *)this->m_sVhdr, MSGL_V);
print_wave_header((WAVEFORMATEX *)this->m_sVhdr2, MSGL_V);
this->m_pDMO_Filter = DMO_FilterCreate(dllname, guid, &this->m_sOurType, &this->m_sDestType);
if( !this->m_pDMO_Filter ) {
free(this);
return NULL;
}
return this;
}
void DMO_AudioDecoder_Destroy(DMO_AudioDecoder *this)
{
free(this->m_sVhdr);
free(this->m_sVhdr2);
DMO_Filter_Destroy(this->m_pDMO_Filter);
free(this);
}
int DMO_AudioDecoder_Convert(DMO_AudioDecoder *this, const void* in_data, unsigned int in_size,
void* out_data, unsigned int out_size,
unsigned int* size_read, unsigned int* size_written)
{
DMO_OUTPUT_DATA_BUFFER db;
CMediaBuffer* bufferin;
unsigned long written = 0;
unsigned long read = 0;
int r = 0;
if (!in_data || !out_data)
return -1;
#ifdef WIN32_LOADER
Setup_FS_Segment();
#endif
//m_pDMO_Filter->m_pMedia->vt->Lock(m_pDMO_Filter->m_pMedia, 1);
bufferin = CMediaBufferCreate(in_size, (void*)in_data, in_size, 1);
r = this->m_pDMO_Filter->m_pMedia->vt->ProcessInput(this->m_pDMO_Filter->m_pMedia, 0,
(IMediaBuffer*)bufferin,
(this->m_iFlushed) ? DMO_INPUT_DATA_BUFFERF_SYNCPOINT : 0,
0, 0);
if (r == 0){
((IMediaBuffer*)bufferin)->vt->GetBufferAndLength((IMediaBuffer*)bufferin, 0, &read);
this->m_iFlushed = 0;
}
((IMediaBuffer*)bufferin)->vt->Release((IUnknown*)bufferin);
//printf("RESULTA: %d 0x%x %ld %d %d\n", r, r, read, m_iFlushed, out_size);
if (r == 0 || (unsigned)r == DMO_E_NOTACCEPTING){
unsigned long status = 0;
/* something for process */
db.rtTimestamp = 0;
db.rtTimelength = 0;
db.dwStatus = 0;
db.pBuffer = (IMediaBuffer*) CMediaBufferCreate(out_size, out_data, 0, 0);
//printf("OUTSIZE %d\n", out_size);
r = this->m_pDMO_Filter->m_pMedia->vt->ProcessOutput(this->m_pDMO_Filter->m_pMedia,
0, 1, &db, &status);
((IMediaBuffer*)db.pBuffer)->vt->GetBufferAndLength((IMediaBuffer*)db.pBuffer, 0, &written);
((IMediaBuffer*)db.pBuffer)->vt->Release((IUnknown*)db.pBuffer);
//printf("RESULTB: %d 0x%x %ld\n", r, r, written);
//printf("Converted %d -> %d\n", in_size, out_size);
}
else if (in_size > 0)
printf("ProcessInputError r:0x%x=%d\n", r, r);
if (size_read)
*size_read = read;
if (size_written)
*size_written = written;
return r;
}
int DMO_AudioDecoder_GetSrcSize(DMO_AudioDecoder *this, int dest_size)
{
// unsigned long inputs, outputs;
// Setup_FS_Segment();
// this->m_pDMO_Filter->m_pMedia->vt->GetOutputSizeInfo(this->m_pDMO_Filter->m_pMedia, 0, &inputs, &outputs);
return ((WAVEFORMATEX*)this->m_sVhdr)->nBlockAlign*4;
}
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