mirror of
https://github.com/mpv-player/mpv
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597c4bf925
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9968 b3059339-0415-0410-9bf9-f77b7e298cf2
177 lines
5.3 KiB
C
177 lines
5.3 KiB
C
/********************************************************
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DirectShow audio decoder
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Copyright 2001 Eugene Kuznetsov (divx@euro.ru)
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*********************************************************/
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#include "config.h"
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#ifndef NOAVIFILE_HEADERS
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#include "audiodecoder.h"
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#include "except.h"
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#else
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#include "libwin32.h"
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#ifdef WIN32_LOADER
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#include "ldt_keeper.h"
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#endif
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#endif
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#include "DMO_Filter.h"
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#include "DMO_AudioDecoder.h"
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struct _DMO_AudioDecoder
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{
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DMO_MEDIA_TYPE m_sOurType, m_sDestType;
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DMO_Filter* m_pDMO_Filter;
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char* m_sVhdr;
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char* m_sVhdr2;
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int m_iFlushed;
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};
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#include "DMO_AudioDecoder.h"
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define __MODULE__ "DirectShow audio decoder"
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typedef long STDCALL (*GETCLASS) (GUID*, GUID*, void**);
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extern void print_wave_header(WAVEFORMATEX *h);
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DMO_AudioDecoder * DMO_AudioDecoder_Open(char* dllname, GUID* guid, WAVEFORMATEX* wf,int out_channels)
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//DMO_AudioDecoder * DMO_AudioDecoder_Create(const CodecInfo * info, const WAVEFORMATEX* wf)
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{
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DMO_AudioDecoder *this;
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int sz;
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WAVEFORMATEX* pWF;
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#ifdef WIN32_LOADER
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Setup_LDT_Keeper();
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Setup_FS_Segment();
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#endif
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this = malloc(sizeof(DMO_AudioDecoder));
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this->m_iFlushed=1;
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sz = 18 + wf->cbSize;
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this->m_sVhdr = malloc(sz);
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memcpy(this->m_sVhdr, wf, sz);
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this->m_sVhdr2 = malloc(18);
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memcpy(this->m_sVhdr2, this->m_sVhdr, 18);
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pWF = (WAVEFORMATEX*)this->m_sVhdr2;
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pWF->wFormatTag = 1;
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pWF->wBitsPerSample = 16;
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pWF->nChannels = out_channels;
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pWF->nBlockAlign = 2*pWF->nChannels; //pWF->nChannels * (pWF->wBitsPerSample + 7) / 8;
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pWF->nAvgBytesPerSec = pWF->nBlockAlign * pWF->nSamplesPerSec;
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pWF->cbSize = 0;
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memset(&this->m_sOurType, 0, sizeof(this->m_sOurType));
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this->m_sOurType.majortype=MEDIATYPE_Audio;
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this->m_sOurType.subtype=MEDIASUBTYPE_PCM;
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this->m_sOurType.subtype.f1=wf->wFormatTag;
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this->m_sOurType.formattype=FORMAT_WaveFormatEx;
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this->m_sOurType.lSampleSize=wf->nBlockAlign;
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this->m_sOurType.bFixedSizeSamples=1;
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this->m_sOurType.bTemporalCompression=0;
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this->m_sOurType.cbFormat=sz;
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this->m_sOurType.pbFormat=this->m_sVhdr;
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memset(&this->m_sDestType, 0, sizeof(this->m_sDestType));
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this->m_sDestType.majortype=MEDIATYPE_Audio;
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this->m_sDestType.subtype=MEDIASUBTYPE_PCM;
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this->m_sDestType.formattype=FORMAT_WaveFormatEx;
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this->m_sDestType.bFixedSizeSamples=1;
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this->m_sDestType.bTemporalCompression=0;
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this->m_sDestType.lSampleSize=pWF->nBlockAlign;
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this->m_sDestType.cbFormat=18; //pWF->cbSize;
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this->m_sDestType.pbFormat=this->m_sVhdr2;
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print_wave_header((WAVEFORMATEX *)this->m_sVhdr);
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print_wave_header((WAVEFORMATEX *)this->m_sVhdr2);
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this->m_pDMO_Filter = DMO_FilterCreate(dllname, guid, &this->m_sOurType, &this->m_sDestType);
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if( !this->m_pDMO_Filter ) {
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free(this);
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return NULL;
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}
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return this;
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}
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void DMO_AudioDecoder_Destroy(DMO_AudioDecoder *this)
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{
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free(this->m_sVhdr);
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free(this->m_sVhdr2);
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DMO_Filter_Destroy(this->m_pDMO_Filter);
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free(this);
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}
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int DMO_AudioDecoder_Convert(DMO_AudioDecoder *this, const void* in_data, unsigned int in_size,
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void* out_data, unsigned int out_size,
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unsigned int* size_read, unsigned int* size_written)
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{
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DMO_OUTPUT_DATA_BUFFER db;
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CMediaBuffer* bufferin;
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unsigned long written = 0;
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unsigned long read = 0;
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int r = 0;
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if (!in_data || !out_data)
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return -1;
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#ifdef WIN32_LOADER
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Setup_FS_Segment();
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#endif
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//m_pDMO_Filter->m_pMedia->vt->Lock(m_pDMO_Filter->m_pMedia, 1);
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bufferin = CMediaBufferCreate(in_size, (void*)in_data, in_size, 1);
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r = this->m_pDMO_Filter->m_pMedia->vt->ProcessInput(this->m_pDMO_Filter->m_pMedia, 0,
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(IMediaBuffer*)bufferin,
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(this->m_iFlushed) ? DMO_INPUT_DATA_BUFFERF_SYNCPOINT : 0,
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0, 0);
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if (r == 0){
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((IMediaBuffer*)bufferin)->vt->GetBufferAndLength((IMediaBuffer*)bufferin, 0, &read);
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this->m_iFlushed = 0;
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}
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((IMediaBuffer*)bufferin)->vt->Release((IUnknown*)bufferin);
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//printf("RESULTA: %d 0x%x %ld %d %d\n", r, r, read, m_iFlushed, out_size);
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if (r == 0 || (unsigned)r == DMO_E_NOTACCEPTING){
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unsigned long status = 0;
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/* something for process */
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db.rtTimestamp = 0;
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db.rtTimelength = 0;
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db.dwStatus = 0;
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db.pBuffer = (IMediaBuffer*) CMediaBufferCreate(out_size, out_data, 0, 0);
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//printf("OUTSIZE %d\n", out_size);
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r = this->m_pDMO_Filter->m_pMedia->vt->ProcessOutput(this->m_pDMO_Filter->m_pMedia,
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0, 1, &db, &status);
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((IMediaBuffer*)db.pBuffer)->vt->GetBufferAndLength((IMediaBuffer*)db.pBuffer, 0, &written);
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((IMediaBuffer*)db.pBuffer)->vt->Release((IUnknown*)db.pBuffer);
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//printf("RESULTB: %d 0x%x %ld\n", r, r, written);
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//printf("Converted %d -> %d\n", in_size, out_size);
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}
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else if (in_size > 0)
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printf("ProcessInputError r:0x%x=%d\n", r, r);
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if (size_read)
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*size_read = read;
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if (size_written)
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*size_written = written;
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return r;
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}
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int DMO_AudioDecoder_GetSrcSize(DMO_AudioDecoder *this, int dest_size)
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{
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// unsigned long inputs, outputs;
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// Setup_FS_Segment();
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// this->m_pDMO_Filter->m_pMedia->vt->GetOutputSizeInfo(this->m_pDMO_Filter->m_pMedia, 0, &inputs, &outputs);
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return ((WAVEFORMATEX*)this->m_sVhdr)->nBlockAlign*4;
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}
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