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120 lines
2.4 KiB
C++
120 lines
2.4 KiB
C++
#include "main.h"
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#include "../../vp32/include/duck_dxl.h"
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#include "vfw.h"
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extern "C" {
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void GetImageBufs(DXL_XIMAGE_HANDLE x, YV12_PLANES *p);
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};
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int vp3_postprocess=0;
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int vp3_targetcpu=0;
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class VP3_Decoder : public IVideoDecoder {
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public:
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VP3_Decoder(int w, int h, int uvflip);
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~VP3_Decoder();
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int decode(int need_kf,
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void *in, int in_len,
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void **out, // out is set to a pointer to data
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unsigned int *out_type, // 'Y','V','1','2' is currently defined
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int *is_kf);
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void flush() { }
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private:
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int m_uvflip;
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int l_tcpu, l_pp;
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static int init;
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DXL_XIMAGE_HANDLE xim;
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YV12_PLANES vidbufdec;
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};
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int VP3_Decoder::init;
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VP3_Decoder::VP3_Decoder(int w, int h, int uvflip)
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{
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l_tcpu=-1;
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l_pp=-1;
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if (!init)
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{
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init=1;
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DXL_InitVideoEx(1,1);
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}
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m_uvflip=uvflip;
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vidbufdec.y.baseAddr=0;
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xim = DXL_AlterXImage( NULL, (unsigned char *)"" ,MAKEFOURCC('V','P','3','1'), DXRGBNULL,w,h);
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}
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VP3_Decoder::~VP3_Decoder()
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{
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if ( xim ) DXL_DestroyXImage( xim);
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}
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int VP3_Decoder::decode(int need_kf,
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void *in, int in_len,
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void **out, // out is set to a pointer to data
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unsigned int *out_type, // 'Y','V','1','2' is currently defined
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int *is_kf)
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{
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BYTE *data=(BYTE*)in;
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if (!xim) return -1;
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*out_type=NSV_MAKETYPE('Y','V','1','2');
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if (vp3_postprocess != l_pp || vp3_targetcpu != l_tcpu)
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{
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l_pp=vp3_postprocess;
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l_tcpu=vp3_targetcpu;
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if (l_pp)
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{
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int v=l_tcpu;
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if (v < 1) v=1;
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if (v > 100) v=100;
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vp31_SetParameter(xim,1, v);
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vp31_SetParameter(xim,0, 9);
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}
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else
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{
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vp31_SetParameter(xim,1, 0);
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vp31_SetParameter(xim,0, 0);
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}
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}
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DXL_AlterXImageData( xim, data);
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DXL_SetXImageCSize(xim, in_len);
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*is_kf=!(!in_len || data[0] > 0x7f);
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*out=NULL;
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if ((need_kf && !*is_kf) || !in_len)
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{
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return 0;
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}
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if (!DXL_dxImageToVScreen( xim, NULL))
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{
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GetImageBufs(xim,&vidbufdec);
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if (m_uvflip)
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{
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YV12_PLANE tmp=vidbufdec.v;
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vidbufdec.v=vidbufdec.u;
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vidbufdec.u=tmp;
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}
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*out=&vidbufdec;
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return 0;
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}
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return -1;
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}
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IVideoDecoder *VP3_CREATE(int w, int h, double framerate, unsigned int fmt, int *flip)
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{
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if (fmt == NSV_MAKETYPE('V','P','3',' ') || fmt == NSV_MAKETYPE('V','P','3','1'))
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{
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*flip=1;
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return new VP3_Decoder(w,h,fmt == NSV_MAKETYPE('V','P','3',' '));
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}
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return NULL;
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}
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