opensolaris man page for mlib_videodct8x8_s16_u8

mlib_VideoDCT8x8_S16_U8(3MLIB)				    mediaLib Library Functions				    mlib_VideoDCT8x8_S16_U8(3MLIB)

NAME
       mlib_VideoDCT8x8_S16_U8 - forward Discrete Cosine Transform (DCT)

SYNOPSIS
       cc [ flag... ] file... -lmlib [ library... ]
       #include <mlib.h>

       mlib_status mlib_VideoDCT8x8_S16_U8(mlib_s16 coeffs[64],
	    const mlib_u8 *block, mlib_s32 stride);

DESCRIPTION
       The mlib_VideoDCT8x8_S16_U8() function computes the forward DCT for the destination DCT coefficients of data type mlib_s16 and source block
       of data type mlib_u8. The stride applies to the block that is part of the frame currently being encoded.

       The source and destination buffer addresses must be 8-byte aligned.

       This function can be used in JPEG with 8-bit precision, or in MPEG for the intra mode.

PARAMETERS
       The function takes the following arguments:

       coeffs	 Pointer to the destination DCT coefficients. Note that coeffs must be 8-byte aligned.

       block	 Pointer to an 8x8 block in the current frame. Note that block must be 8-byte aligned.

       stride	 Stride in bytes between adjacent rows in the block. Note that stride must be a multiple of eight.

RETURN VALUES
       The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       mlib_VideoDCT2x2_S16_S16(3MLIB), 		  mlib_VideoDCT4x4_S16_S16(3MLIB),		      mlib_VideoDCT8x8_S16_S16_B10(3MLIB),
       mlib_VideoDCT8x8_S16_S16_B10_NA(3MLIB),		     mlib_VideoDCT8x8_S16_S16_B12(3MLIB),		mlib_VideoDCT8x8_S16_U8_NA(3MLIB),
       mlib_VideoDCT16x16_S16_S16(3MLIB),      mlib_VideoDCT16x16_S16_S16_B10(3MLIB),	   mlib_VideoDeQuantize_S16(3MLIB),	 mlib_VideoDeQuan-
       tizeInit_S16(3MLIB), mlib_VideoQuantize_S16(3MLIB), mlib_VideoQuantizeInit_S16(3MLIB), attributes(5)

SunOS 5.11							    2 Mar 2007					    mlib_VideoDCT8x8_S16_U8(3MLIB)