mlib_videoidct8x8_u8_s16(3mlib) [opensolaris man page]
mlib_VideoIDCT8x8_U8_S16(3MLIB) mediaLib Library Functions mlib_VideoIDCT8x8_U8_S16(3MLIB) NAME
mlib_VideoIDCT8x8_U8_S16 - inverse Discrete Cosine Transform SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_VideoIDCT8x8_U8_S16(mlib_u8 *block, const mlib_s16 coeffs[64], mlib_s32 stride); DESCRIPTION
The mlib_VideoIDCT8x8_U8_S16() function computes the inverse DCT (called IDCT) for the destination IDCT block of data type mlib_u8 and source DCT coefficients of data type mlib_s16. The stride applies to the block that is part of the frame currently being reconstructed. PARAMETERS
The function takes the following arguments: block Pointer to an 8x8 block in the current frame. block must be 8-byte aligned. coeffs Pointer to the source DCT coefficients. coeffs must be 8-byte aligned. stride Stride, in bytes, between adjacent rows in a block. 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_VideoIDCT_IEEE_S16_S16(3MLIB), mlib_VideoIDCT8x8_S16_S16(3MLIB), mlib_VideoIDCT8x8_S16_S16_DC(3MLIB), mlib_VideoIDCT8x8_S16_S16_NA(3MLIB), mlib_VideoIDCT8x8_S16_S16_Q1(3MLIB), mlib_VideoIDCT8x8_U8_S16_DC(3MLIB), mlib_VideoIDCT8x8_U8_S16_NA(3MLIB), mlib_VideoIDCT8x8_U8_S16_Q1(3MLIB), attributes(5) SunOS 5.11 2 Mar 2007 mlib_VideoIDCT8x8_U8_S16(3MLIB)
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mlib_VideoIDCT8x8_S16_S16_DC(3MLIB) mediaLib Library Functions mlib_VideoIDCT8x8_S16_S16_DC(3MLIB) NAME
mlib_VideoIDCT8x8_S16_S16_DC - inverse Discrete Cosine Transform SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_VideoIDCT8x8_S16_S16_DC(mlib_s16 *block, const mlib_s16 *coeffs); DESCRIPTION
The mlib_VideoIDCT8x8_S16_S16_DC() function can be used only when F(0,0) is nonzero. It computes the inverse DCT (called IDCT) for the out- put IDCT block of data type mlib_s16 and input DCT coefficients of data type mlib_s16. This function is not guaranteed to be IEEE-1180-com- pliant. The output of the IDCT routine is the difference between the current block and the reference block. The difference pixel can occupy nine bits and is represented as a 16-bit datum. The output must be added to the motion-compensated reference block in order to reconstruct the current block. PARAMETERS
The function takes the following arguments: block Pointer to the current block. block must be 8-byte aligned. coeffs Pointer to the source DCT coefficients. coeffs must be 8-byte aligned. 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_VideoIDCT_IEEE_S16_S16(3MLIB), mlib_VideoIDCT8x8_S16_S16(3MLIB), mlib_VideoIDCT8x8_S16_S16_NA(3MLIB), mlib_VideoIDCT8x8_S16_S16_Q1(3MLIB), mlib_VideoIDCT8x8_U8_S16(3MLIB), mlib_VideoIDCT8x8_U8_S16_DC(3MLIB), mlib_VideoIDCT8x8_U8_S16_NA(3MLIB), mlib_VideoIDCT8x8_U8_S16_Q1(3MLIB), attributes(5) SunOS 5.11 2 Mar 2007 mlib_VideoIDCT8x8_S16_S16_DC(3MLIB)