Query: mlib_videoidct8x8_s16_s16_q1_mismatch
OS: opensolaris
Section: 3mlib
Links: opensolaris man pages all man pages
Forums: unix linux community forum categories
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
mlib_VideoIDCT8x8_S16_S16_Q1_Mismatch(3MLIB) mediaLib Library Functions mlib_VideoIDCT8x8_S16_S16_Q1_Mismatch(3MLIB)NAMEmlib_VideoIDCT8x8_S16_S16_Q1_Mismatch - inverse Discrete Cosine TransformSYNOPSIScc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_VideoIDCT8x8_S16_S16_Q1_Mismatch( mlib_s16 block[64], const mlib_s16 coeffs[64]);DESCRIPTIONThe mlib_VideoIDCT8x8_S16_S16_Q1_Mismatch() function computes the inverse IDCT in the inter mode. This function is similar to mlib_VideoIDCT8x8_S16_S16_Q1() which should only be used when coeffs[u][v] (u,v = 0...7) are non-zero only for u and v less then 4. However, this function also allows element coeffs[7][7] to be non-zero. The primary benefit of this modification is that it can handle situations where coeffs[7][7] has been made non-zero by MPEG mismatch-control, allowing a simplified version of the IDCT to be undertaken for a much larger number of situations.PARAMETERSThe function takes the following arguments: block Pointer to an 8x8 motion-compensated block which is the difference between the reference block and current block. block must be 8-byte aligned. coeffs Pointer to the input DCT coefficients. coeffs must be 8-byte aligned. coeffs should be in S12 range or it should be obtained from the corresponding forward DCT.RETURN VALUESThe function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.ATTRIBUTESSee attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Committed | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+SEE ALSOmlib_VideoIDCT8x8_S16_S16_Q1(3MLIB), attributes(5) SunOS 5.11 2 Mar 2007 mlib_VideoIDCT8x8_S16_S16_Q1_Mismatch(3MLIB)