#include "avcodec.h"
#include "dsputil.h"
#include "dwt.h"
#include "ivi_common.h"
#include "ivi_dsp.h"
Go to the source code of this file.
Defines | |
#define | IVI_HAAR_BFLY(s1, s2, o1, o2, t) |
butterfly operation for the inverse Haar transform | |
#define | INV_HAAR8(s1, s5, s3, s7, s2, s4, s6, s8, d1, d2, d3, d4, d5, d6, d7, d8, t0, t1, t2, t3, t4, t5, t6, t7, t8) |
inverse 8-point Haar transform | |
#define | INV_HAAR4(s1, s3, s5, s7) |
inverse 4-point Haar transform | |
#define | COMPENSATE(x) (x) |
#define | COMPENSATE(x) (x) |
#define | IVI_SLANT_BFLY(s1, s2, o1, o2, t) |
butterfly operation for the inverse slant transform | |
#define | IVI_IREFLECT(s1, s2, o1, o2, t) |
This is a reflection a,b = 1/2, 5/4 for the inverse slant transform. | |
#define | IVI_SLANT_PART4(s1, s2, o1, o2, t) |
This is a reflection a,b = 1/2, 7/8 for the inverse slant transform. | |
#define | IVI_INV_SLANT8(s1, s4, s8, s5, s2, s6, s3, s7, d1, d2, d3, d4, d5, d6, d7, d8, t0, t1, t2, t3, t4, t5, t6, t7, t8) |
inverse slant8 transform | |
#define | IVI_INV_SLANT4(s1, s4, s2, s3, d1, d2, d3, d4, t0, t1, t2, t3, t4) |
inverse slant4 transform | |
#define | COMPENSATE(x) (x) |
#define | COMPENSATE(x) ((x + 1)>>1) |
#define | COMPENSATE(x) (x) |
#define | COMPENSATE(x) ((x + 1)>>1) |
#define | COMPENSATE(x) ((x + 1)>>1) |
#define | COMPENSATE(x) ((x + 1)>>1) |
#define | IVI_MC_TEMPLATE(size, suffix, OP) |
#define | OP_PUT(a, b) (a) = (b) |
#define | OP_ADD(a, b) (a) += (b) |
Functions | |
void | ff_ivi_recompose53 (const IVIPlaneDesc *plane, uint8_t *dst, const int dst_pitch, const int num_bands) |
5/3 wavelet recomposition filter for Indeo5 | |
void | ff_ivi_recompose_haar (const IVIPlaneDesc *plane, uint8_t *dst, const int dst_pitch, const int num_bands) |
Haar wavelet recomposition filter for Indeo 4. | |
void | ff_ivi_inverse_haar_8x8 (const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags) |
two-dimensional inverse Haar 8x8 transform for Indeo 4 | |
void | ff_ivi_dc_haar_2d (const int32_t *in, int16_t *out, uint32_t pitch, int blk_size) |
DC-only two-dimensional inverse Haar transform for Indeo 4. | |
void | ff_ivi_inverse_slant_8x8 (const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags) |
two-dimensional inverse slant 8x8 transform | |
void | ff_ivi_inverse_slant_4x4 (const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags) |
two-dimensional inverse slant 4x4 transform | |
void | ff_ivi_dc_slant_2d (const int32_t *in, int16_t *out, uint32_t pitch, int blk_size) |
DC-only two-dimensional inverse slant transform. | |
void | ff_ivi_row_slant8 (const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags) |
inverse 1D row slant transform | |
void | ff_ivi_dc_row_slant (const int32_t *in, int16_t *out, uint32_t pitch, int blk_size) |
DC-only inverse row slant transform. | |
void | ff_ivi_col_slant8 (const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags) |
inverse 1D column slant transform | |
void | ff_ivi_dc_col_slant (const int32_t *in, int16_t *out, uint32_t pitch, int blk_size) |
DC-only inverse column slant transform. | |
void | ff_ivi_put_pixels_8x8 (const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags) |
Copy the pixels into the frame buffer. | |
void | ff_ivi_put_dc_pixel_8x8 (const int32_t *in, int16_t *out, uint32_t pitch, int blk_size) |
Copy the DC coefficient into the first pixel of the block and zero all others. |
Definition in file ivi_dsp.c.
#define COMPENSATE | ( | x | ) | ((x + 1)>>1) |
#define COMPENSATE | ( | x | ) | ((x + 1)>>1) |
#define COMPENSATE | ( | x | ) | ((x + 1)>>1) |
#define COMPENSATE | ( | x | ) | (x) |
#define COMPENSATE | ( | x | ) | ((x + 1)>>1) |
#define COMPENSATE | ( | x | ) | (x) |
#define COMPENSATE | ( | x | ) | (x) |
#define COMPENSATE | ( | x | ) | (x) |
#define INV_HAAR4 | ( | s1, | |||
s3, | |||||
s5, | |||||
s7 | ) |
Value:
{\ HAAR_BFLY(s1, s5); HAAR_BFLY(s1, s3); HAAR_BFLY(s5, s7);\ s1 = COMPENSATE(s1);\ s3 = COMPENSATE(s3);\ s5 = COMPENSATE(s5);\ s7 = COMPENSATE(s7); }
#define INV_HAAR8 | ( | s1, | |||
s5, | |||||
s3, | |||||
s7, | |||||
s2, | |||||
s4, | |||||
s6, | |||||
s8, | |||||
d1, | |||||
d2, | |||||
d3, | |||||
d4, | |||||
d5, | |||||
d6, | |||||
d7, | |||||
d8, | |||||
t0, | |||||
t1, | |||||
t2, | |||||
t3, | |||||
t4, | |||||
t5, | |||||
t6, | |||||
t7, | |||||
t8 | ) |
Value:
{\ t1 = s1 << 1; t5 = s5 << 1;\ IVI_HAAR_BFLY(t1, t5, t1, t5, t0); IVI_HAAR_BFLY(t1, s3, t1, t3, t0);\ IVI_HAAR_BFLY(t5, s7, t5, t7, t0); IVI_HAAR_BFLY(t1, s2, t1, t2, t0);\ IVI_HAAR_BFLY(t3, s4, t3, t4, t0); IVI_HAAR_BFLY(t5, s6, t5, t6, t0);\ IVI_HAAR_BFLY(t7, s8, t7, t8, t0);\ d1 = COMPENSATE(t1);\ d2 = COMPENSATE(t2);\ d3 = COMPENSATE(t3);\ d4 = COMPENSATE(t4);\ d5 = COMPENSATE(t5);\ d6 = COMPENSATE(t6);\ d7 = COMPENSATE(t7);\ d8 = COMPENSATE(t8); }
Definition at line 236 of file ivi_dsp.c.
Referenced by ff_ivi_inverse_haar_8x8().
#define IVI_HAAR_BFLY | ( | s1, | |||
s2, | |||||
o1, | |||||
o2, | |||||
t | ) |
#define IVI_INV_SLANT4 | ( | s1, | |||
s4, | |||||
s2, | |||||
s3, | |||||
d1, | |||||
d2, | |||||
d3, | |||||
d4, | |||||
t0, | |||||
t1, | |||||
t2, | |||||
t3, | |||||
t4 | ) |
Value:
{\ IVI_SLANT_BFLY(s1, s2, t1, t2, t0); IVI_IREFLECT (s4, s3, t4, t3, t0);\ \ IVI_SLANT_BFLY(t1, t4, t1, t4, t0); IVI_SLANT_BFLY(t2, t3, t2, t3, t0);\ d1 = COMPENSATE(t1);\ d2 = COMPENSATE(t2);\ d3 = COMPENSATE(t3);\ d4 = COMPENSATE(t4);}
Definition at line 369 of file ivi_dsp.c.
Referenced by ff_ivi_inverse_slant_4x4().
#define IVI_INV_SLANT8 | ( | s1, | |||
s4, | |||||
s8, | |||||
s5, | |||||
s2, | |||||
s6, | |||||
s3, | |||||
s7, | |||||
d1, | |||||
d2, | |||||
d3, | |||||
d4, | |||||
d5, | |||||
d6, | |||||
d7, | |||||
d8, | |||||
t0, | |||||
t1, | |||||
t2, | |||||
t3, | |||||
t4, | |||||
t5, | |||||
t6, | |||||
t7, | |||||
t8 | ) |
Value:
{\ IVI_SLANT_PART4(s4, s5, t4, t5, t0);\ \ IVI_SLANT_BFLY(s1, t5, t1, t5, t0); IVI_SLANT_BFLY(s2, s6, t2, t6, t0);\ IVI_SLANT_BFLY(s7, s3, t7, t3, t0); IVI_SLANT_BFLY(t4, s8, t4, t8, t0);\ \ IVI_SLANT_BFLY(t1, t2, t1, t2, t0); IVI_IREFLECT (t4, t3, t4, t3, t0);\ IVI_SLANT_BFLY(t5, t6, t5, t6, t0); IVI_IREFLECT (t8, t7, t8, t7, t0);\ IVI_SLANT_BFLY(t1, t4, t1, t4, t0); IVI_SLANT_BFLY(t2, t3, t2, t3, t0);\ IVI_SLANT_BFLY(t5, t8, t5, t8, t0); IVI_SLANT_BFLY(t6, t7, t6, t7, t0);\ d1 = COMPENSATE(t1);\ d2 = COMPENSATE(t2);\ d3 = COMPENSATE(t3);\ d4 = COMPENSATE(t4);\ d5 = COMPENSATE(t5);\ d6 = COMPENSATE(t6);\ d7 = COMPENSATE(t7);\ d8 = COMPENSATE(t8);}
Definition at line 349 of file ivi_dsp.c.
Referenced by ff_ivi_col_slant8(), ff_ivi_inverse_slant_8x8(), and ff_ivi_row_slant8().
#define IVI_IREFLECT | ( | s1, | |||
s2, | |||||
o1, | |||||
o2, | |||||
t | ) |
#define IVI_SLANT_BFLY | ( | s1, | |||
s2, | |||||
o1, | |||||
o2, | |||||
t | ) |
#define IVI_SLANT_PART4 | ( | s1, | |||
s2, | |||||
o1, | |||||
o2, | |||||
t | ) |
void ff_ivi_col_slant8 | ( | const int32_t * | in, | |
int16_t * | out, | |||
uint32_t | pitch, | |||
const uint8_t * | flags | |||
) |
inverse 1D column slant transform
[in] | in | pointer to the vector of transform coefficients |
[out] | out | pointer to the output buffer (frame) |
[in] | pitch | pitch to move to the next y line |
[in] | flags | pointer to the array of column flags: != 0 - non_empty column, 0 - empty one (this array must be filled by caller) |
Definition at line 509 of file ivi_dsp.c.
Referenced by decode_gop_header().
void ff_ivi_dc_col_slant | ( | const int32_t * | in, | |
int16_t * | out, | |||
uint32_t | pitch, | |||
int | blk_size | |||
) |
DC-only inverse column slant transform.
Definition at line 536 of file ivi_dsp.c.
Referenced by decode_gop_header().
void ff_ivi_dc_haar_2d | ( | const int32_t * | in, | |
int16_t * | out, | |||
uint32_t | pitch, | |||
int | blk_size | |||
) |
DC-only two-dimensional inverse Haar transform for Indeo 4.
Performing the inverse transform in this case is equivalent to spreading DC_coeff >> 3 over the whole block.
[in] | in | pointer to the dc coefficient |
[out] | out | pointer to the output buffer (frame) |
[in] | pitch | pitch to move to the next y line |
[in] | blk_size | transform block size |
void ff_ivi_dc_row_slant | ( | const int32_t * | in, | |
int16_t * | out, | |||
uint32_t | pitch, | |||
int | blk_size | |||
) |
DC-only inverse row slant transform.
Definition at line 491 of file ivi_dsp.c.
Referenced by decode_gop_header().
void ff_ivi_dc_slant_2d | ( | const int32_t * | in, | |
int16_t * | out, | |||
uint32_t | pitch, | |||
int | blk_size | |||
) |
DC-only two-dimensional inverse slant transform.
Performing the inverse slant transform in this case is equivalent to spreading (DC_coeff + 1)/2 over the whole block. It works much faster than performing the slant transform on a vector of zeroes.
[in] | in | pointer to the dc coefficient |
[out] | out | pointer to the output buffer (frame) |
[in] | pitch | pitch to move to the next y line |
[in] | blk_size | transform block size |
Definition at line 458 of file ivi_dsp.c.
Referenced by decode_gop_header().
void ff_ivi_inverse_haar_8x8 | ( | const int32_t * | in, | |
int16_t * | out, | |||
uint32_t | pitch, | |||
const uint8_t * | flags | |||
) |
two-dimensional inverse Haar 8x8 transform for Indeo 4
[in] | in | pointer to the vector of transform coefficients |
[out] | out | pointer to the output buffer (frame) |
[in] | pitch | pitch to move to the next y line |
[in] | flags | pointer to the array of column flags: != 0 - non_empty column, 0 - empty one (this array must be filled by caller) |
void ff_ivi_inverse_slant_4x4 | ( | const int32_t * | in, | |
int16_t * | out, | |||
uint32_t | pitch, | |||
const uint8_t * | flags | |||
) |
two-dimensional inverse slant 4x4 transform
[in] | in | pointer to the vector of transform coefficients |
[out] | out | pointer to the output buffer (frame) |
[in] | pitch | pitch to move to the next y line |
[in] | flags | pointer to the array of column flags: != 0 - non_empty column, 0 - empty one (this array must be filled by caller) |
Definition at line 418 of file ivi_dsp.c.
Referenced by decode_gop_header().
void ff_ivi_inverse_slant_8x8 | ( | const int32_t * | in, | |
int16_t * | out, | |||
uint32_t | pitch, | |||
const uint8_t * | flags | |||
) |
two-dimensional inverse slant 8x8 transform
[in] | in | pointer to the vector of transform coefficients |
[out] | out | pointer to the output buffer (frame) |
[in] | pitch | pitch to move to the next y line |
[in] | flags | pointer to the array of column flags: != 0 - non_empty column, 0 - empty one (this array must be filled by caller) |
Definition at line 378 of file ivi_dsp.c.
Referenced by decode_gop_header().
void ff_ivi_put_dc_pixel_8x8 | ( | const int32_t * | in, | |
int16_t * | out, | |||
uint32_t | pitch, | |||
int | blk_size | |||
) |
Copy the DC coefficient into the first pixel of the block and zero all others.
Definition at line 560 of file ivi_dsp.c.
Referenced by decode_gop_header().
void ff_ivi_put_pixels_8x8 | ( | const int32_t * | in, | |
int16_t * | out, | |||
uint32_t | pitch, | |||
const uint8_t * | flags | |||
) |
Copy the pixels into the frame buffer.
Definition at line 550 of file ivi_dsp.c.
Referenced by decode_gop_header().
void ff_ivi_recompose53 | ( | const IVIPlaneDesc * | plane, | |
uint8_t * | dst, | |||
const int | dst_pitch, | |||
const int | num_bands | |||
) |
5/3 wavelet recomposition filter for Indeo5
[in] | plane | pointer to the descriptor of the plane being processed |
[out] | dst | pointer to the destination buffer |
[in] | dst_pitch | pitch of the destination buffer |
[in] | num_bands | number of wavelet bands to be processed |
Definition at line 35 of file ivi_dsp.c.
Referenced by decode_frame().
void ff_ivi_recompose_haar | ( | const IVIPlaneDesc * | plane, | |
uint8_t * | dst, | |||
const int | dst_pitch, | |||
const int | num_bands | |||
) |
Haar wavelet recomposition filter for Indeo 4.
[in] | plane | pointer to the descriptor of the plane being processed |
[out] | dst | pointer to the destination buffer |
[in] | dst_pitch | pitch of the destination buffer |
[in] | num_bands | number of wavelet bands to be processed |
Definition at line 181 of file ivi_dsp.c.
Referenced by decode_frame().
void ff_ivi_row_slant8 | ( | const int32_t * | in, | |
int16_t * | out, | |||
uint32_t | pitch, | |||
const uint8_t * | flags | |||
) |
inverse 1D row slant transform
[in] | in | pointer to the vector of transform coefficients |
[out] | out | pointer to the output buffer (frame) |
[in] | pitch | pitch to move to the next y line |
[in] | flags | pointer to the array of column flags (unused here) |
Definition at line 471 of file ivi_dsp.c.
Referenced by decode_gop_header().