public.h

来自「H.263+(VC++商业源代码)」· C头文件 代码 · 共 44 行

/////////////////Decoder Functions//////////////////////////

//decode one frame
//BitCount is the size of bitstream (in bytes )
 int DecodeOneFrame(int BitCount);

//init the internal structure of decoder
 BOOL  InitDecoder(unsigned char **DecoderInput,unsigned char **DecoderOutput,int PictureW,int PictureH);

//free resource used by decoder
 void  FreeDecoder(void);

/////////////////Encoder Functions//////////////////////////

//encode one frame of picture, using IntraFrame encoder
//that means, this frame has no relation with other frames
//return: size of bitstream encoded (in bytes)
 int  EncodeOneIntra(void);

//encode one frame of picture, using InterFrame encoder
//that means, how this frame is encoded depends on frames
//that has been encoded since last call of <EncodeOneIntra>
//return: size of bitstream encoded (in bytes)
 int  EncodeOneInter(void);

//init the internal structure of encoder
 long InitEncoder(unsigned char **EncoderInput ,unsigned char **EncoderOutput,int PictureWidth,int PictureHeight);

//free resource used by encoder
 void  FreeEncoder(void);

//set the compression ratio(1 to 31)
//the smaller newQP, the better image quality you'll get
//return: current QP
 int  SetCompressRatio(int newQP);

//set Video format
//555:   R 5, G 5, B 5
//565:   R 5, G 6, B 5
//888:	 R 8, G 8, B 8
 void  SetVideoFormat(int NewVideoFormat);