Name | Synopsis | Description | Parameters | Return Values | Attributes | See Also
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_VideoDCT8x8_S16_U8_NA(mlib_s16 coeffs[64], const mlib_u8 *block, mlib_s32 stride);
The mlib_VideoDCT8x8_S16_U8_NA() 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.
This function requires no special address alignment.
This function can be used in JPEG with 8-bit precision, or in MPEG for the intra mode.
The function takes the following arguments:
Pointer to the destination DCT coefficients.
Pointer to an 8x8 block in the current frame.
Stride in bytes between adjacent rows in the block.
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE |
ATTRIBUTE VALUE |
---|---|
Interface Stability |
Committed |
MT-Level |
MT-Safe |
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(3MLIB), mlib_VideoDCT16x16_S16_S16(3MLIB), mlib_VideoDCT16x16_S16_S16_B10(3MLIB), mlib_VideoDeQuantize_S16(3MLIB), mlib_VideoDeQuantizeInit_S16(3MLIB), mlib_VideoQuantize_S16(3MLIB), mlib_VideoQuantizeInit_S16(3MLIB), attributes(5)
Name | Synopsis | Description | Parameters | Return Values | Attributes | See Also