'\" te .\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved .TH mlib_VideoDCT8x8_S16_S16_B10_NA 3MLIB "2 Mar 2007" "SunOS 5.11" "mediaLib Library Functions" .SH NAME mlib_VideoDCT8x8_S16_S16_B10_NA, mlib_VideoDCT8x8_S16_S16_NA \- forward Discrete Cosine Transform (DCT) .SH SYNOPSIS .LP .nf cc [ \fIflag\fR... ] \fIfile\fR... \fB-lmlib\fR [ \fIlibrary\fR... ] #include \fBmlib_status\fR \fBmlib_VideoDCT8x8_S16_S16_B10_NA\fR( \fBmlib_s16\fR \fIcoeffs[64]\fR, \fBconst mlib_s16\fR \fIblock[64]\fR); .fi .LP .nf \fBmlib_status\fR \fBmlib_VideoDCT8x8_S16_S16_NA\fR( \fBmlib_s16\fR \fIcoeffs[64]\fR, \fBconst mlib_s16\fR \fIblock[64]\fR); .fi .SH DESCRIPTION .sp .LP The \fBmlib_VideoDCT8x8_S16_S16_B10_NA()\fR function computes the forward DCT for the destination DCT coefficients of data type mlib_s16 and a source block of data type mlib_s16. The input to the DCT 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. .sp .LP This function requires no special address alignment. .sp .LP Since mediaLib 2.5, \fBmlib_VideoDCT8x8_S16_S16_NA()\fR has been renamed to \fBmlib_VideoDCT8x8_S16_S16_B10_NA()\fR. Now \fBmlib_VideoDCT8x8_S16_S16_NA()\fR is an alias of \fBmlib_VideoDCT8x8_S16_S16_B10_NA()\fR. .SH PARAMETERS .sp .LP The function takes the following arguments: .sp .ne 2 .mk .na \fB\fIcoeffs\fR\fR .ad .RS 10n .rt Pointer to the destination DCT coefficients. .RE .sp .ne 2 .mk .na \fB\fIblock\fR\fR .ad .RS 10n .rt Pointer to an 8x8 motion-compensated block that is the difference between the reference block and the current block. .RE .SH RETURN VALUES .sp .LP The function returns \fBMLIB_SUCCESS\fR if successful. Otherwise it returns \fBMLIB_FAILURE\fR. .SH ATTRIBUTES .sp .LP See \fBattributes\fR(5) for descriptions of the following attributes: .sp .sp .TS tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) . ATTRIBUTE TYPEATTRIBUTE VALUE _ Interface StabilityCommitted _ MT-LevelMT-Safe .TE .SH SEE ALSO .sp .LP \fBmlib_VideoDCT2x2_S16_S16\fR(3MLIB), \fBmlib_VideoDCT4x4_S16_S16\fR(3MLIB), \fBmlib_VideoDCT8x8_S16_S16_B10\fR(3MLIB), \fBmlib_VideoDCT8x8_S16_S16_B12\fR(3MLIB), \fBmlib_VideoDCT8x8_S16_U8\fR(3MLIB), \fBmlib_VideoDCT8x8_S16_U8_NA\fR(3MLIB), \fBmlib_VideoDCT16x16_S16_S16\fR(3MLIB), \fBmlib_VideoDCT16x16_S16_S16_B10\fR(3MLIB), \fBattributes\fR(5)