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ffmpeg.wasm-core
Commit 6647aa04 authored by Kostya Shishkov's avatar Kostya Shishkov
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indeo4: add missing Haar and slanted transforms 

That involves fixing INV_HAAR4() macro and changing it to work with different
input and output like INV_HAAR8() instead of in-place transform.
parent 3b03d7e2
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Showing with 294 additions and 13 deletions
libavcodec/indeo4.c
View file @ 6647aa04
......@@ -56,8 +56,8 @@ static const struct {
int is_2d_trans;
} transforms[18] = {
{ ff_ivi_inverse_haar_8x8, ff_ivi_dc_haar_2d, 1 },
{ NULL, NULL, 0 }, /* inverse Haar 8x1 */
{ NULL, NULL, 0 }, /* inverse Haar 1x8 */
{ ff_ivi_row_haar8, ff_ivi_dc_haar_2d, 0 },
{ ff_ivi_col_haar8, ff_ivi_dc_haar_2d, 0 },
{ ff_ivi_put_pixels_8x8, ff_ivi_put_dc_pixel_8x8, 1 },
{ ff_ivi_inverse_slant_8x8, ff_ivi_dc_slant_2d, 1 },
{ ff_ivi_row_slant8, ff_ivi_dc_row_slant, 1 },
......@@ -65,13 +65,13 @@ static const struct {
{ NULL, NULL, 0 }, /* inverse DCT 8x8 */
{ NULL, NULL, 0 }, /* inverse DCT 8x1 */
{ NULL, NULL, 0 }, /* inverse DCT 1x8 */
{ NULL, NULL, 0 }, /* inverse Haar 4x4 */
{ ff_ivi_inverse_haar_4x4, ff_ivi_dc_haar_2d, 1 },
{ ff_ivi_inverse_slant_4x4, ff_ivi_dc_slant_2d, 1 },
{ NULL, NULL, 0 }, /* no transform 4x4 */
{ NULL, NULL, 0 }, /* inverse Haar 1x4 */
{ NULL, NULL, 0 }, /* inverse Haar 4x1 */
{ NULL, NULL, 0 }, /* inverse slant 1x4 */
{ NULL, NULL, 0 }, /* inverse slant 4x1 */
{ ff_ivi_row_haar4, ff_ivi_dc_haar_2d, 0 },
{ ff_ivi_col_haar4, ff_ivi_dc_haar_2d, 0 },
{ ff_ivi_row_slant4, ff_ivi_dc_row_slant, 0 },
{ ff_ivi_col_slant4, ff_ivi_dc_col_slant, 0 },
{ NULL, NULL, 0 }, /* inverse DCT 4x4 */
};
......
libavcodec/ivi_dsp.c
View file @ 6647aa04
......@@ -248,12 +248,14 @@ void ff_ivi_recompose_haar(const IVIPlaneDesc *plane, uint8_t *dst,
d8 = COMPENSATE(t8); }
/** inverse 4-point Haar transform */
#define INV_HAAR4(s1, s3, s5, s7) {\
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_HAAR4(s1, s3, s5, s7, d1, d2, d3, d4, t0, t1, t2, t3, t4) {\
IVI_HAAR_BFLY(s1, s3, t0, t1, t4);\
IVI_HAAR_BFLY(t0, s5, t2, t3, t4);\
d1 = COMPENSATE(t2);\
d2 = COMPENSATE(t3);\
IVI_HAAR_BFLY(t1, s7, t2, t3, t4);\
d3 = COMPENSATE(t2);\
d4 = COMPENSATE(t3); }
void ff_ivi_inverse_haar_8x8(const int32_t *in, int16_t *out, uint32_t pitch,
const uint8_t *flags)
......@@ -310,6 +312,153 @@ void ff_ivi_inverse_haar_8x8(const int32_t *in, int16_t *out, uint32_t pitch,
#undef COMPENSATE
}
void ff_ivi_row_haar8(const int32_t *in, int16_t *out, uint32_t pitch,
const uint8_t *flags)
{
int i;
int t0, t1, t2, t3, t4, t5, t6, t7, t8;
/* apply the InvHaar8 to all rows */
#define COMPENSATE(x) (x)
for (i = 0; i < 8; i++) {
if ( !in[0] && !in[1] && !in[2] && !in[3]
&& !in[4] && !in[5] && !in[6] && !in[7]) {
memset(out, 0, 8 * sizeof(out[0]));
} else {
INV_HAAR8(in[0], in[1], in[2], in[3],
in[4], in[5], in[6], in[7],
out[0], out[1], out[2], out[3],
out[4], out[5], out[6], out[7],
t0, t1, t2, t3, t4, t5, t6, t7, t8);
}
in += 8;
out += pitch;
}
#undef COMPENSATE
}
void ff_ivi_col_haar8(const int32_t *in, int16_t *out, uint32_t pitch,
const uint8_t *flags)
{
int i;
int t0, t1, t2, t3, t4, t5, t6, t7, t8;
/* apply the InvHaar8 to all columns */
#define COMPENSATE(x) (x)
for (i = 0; i < 8; i++) {
if (flags[i]) {
INV_HAAR8(in[ 0], in[ 8], in[16], in[24],
in[32], in[40], in[48], in[56],
out[0 * pitch], out[1 * pitch],
out[2 * pitch], out[3 * pitch],
out[4 * pitch], out[5 * pitch],
out[6 * pitch], out[7 * pitch],
t0, t1, t2, t3, t4, t5, t6, t7, t8);
} else
out[0 * pitch] = out[1 * pitch] =
out[2 * pitch] = out[3 * pitch] =
out[4 * pitch] = out[5 * pitch] =
out[6 * pitch] = out[7 * pitch] = 0;
in++;
out++;
}
#undef COMPENSATE
}
void ff_ivi_inverse_haar_4x4(const int32_t *in, int16_t *out, uint32_t pitch,
const uint8_t *flags)
{
int i, shift, sp1, sp2;
const int32_t *src;
int32_t *dst;
int tmp[16];
int t0, t1, t2, t3, t4;
/* apply the InvHaar4 to all columns */
#define COMPENSATE(x) (x)
src = in;
dst = tmp;
for (i = 0; i < 4; i++) {
if (flags[i]) {
/* pre-scaling */
shift = !(i & 2);
sp1 = src[0] << shift;
sp2 = src[4] << shift;
INV_HAAR4( sp1, sp2, src[8], src[12],
dst[0], dst[4], dst[8], dst[12],
t0, t1, t2, t3, t4);
} else
dst[0] = dst[4] = dst[8] = dst[12] = 0;
src++;
dst++;
}
#undef COMPENSATE
/* apply the InvHaar8 to all rows */
#define COMPENSATE(x) (x)
src = tmp;
for (i = 0; i < 4; i++) {
if (!src[0] && !src[1] && !src[2] && !src[3]) {
memset(out, 0, 4 * sizeof(out[0]));
} else {
INV_HAAR4(src[0], src[1], src[2], src[3],
out[0], out[1], out[2], out[3],
t0, t1, t2, t3, t4);
}
src += 4;
out += pitch;
}
#undef COMPENSATE
}
void ff_ivi_row_haar4(const int32_t *in, int16_t *out, uint32_t pitch,
const uint8_t *flags)
{
int i;
int t0, t1, t2, t3, t4;
/* apply the InvHaar4 to all rows */
#define COMPENSATE(x) (x)
for (i = 0; i < 4; i++) {
if (!in[0] && !in[1] && !in[2] && !in[3]) {
memset(out, 0, 4 * sizeof(out[0]));
} else {
INV_HAAR4(in[0], in[1], in[2], in[3],
out[0], out[1], out[2], out[3],
t0, t1, t2, t3, t4);
}
in += 4;
out += pitch;
}
#undef COMPENSATE
}
void ff_ivi_col_haar4(const int32_t *in, int16_t *out, uint32_t pitch,
const uint8_t *flags)
{
int i;
int t0, t1, t2, t3, t4;
/* apply the InvHaar8 to all columns */
#define COMPENSATE(x) (x)
for (i = 0; i < 4; i++) {
if (flags[i]) {
INV_HAAR4(in[0], in[4], in[8], in[12],
out[0 * pitch], out[1 * pitch],
out[2 * pitch], out[3 * pitch],
t0, t1, t2, t3, t4);
} else
out[0 * pitch] = out[1 * pitch] =
out[2 * pitch] = out[3 * pitch] = 0;
in++;
out++;
}
#undef COMPENSATE
}
void ff_ivi_dc_haar_2d(const int32_t *in, int16_t *out, uint32_t pitch,
int blk_size)
{
......@@ -546,6 +695,49 @@ void ff_ivi_dc_col_slant(const int32_t *in, int16_t *out, uint32_t pitch, int bl
}
}
void ff_ivi_row_slant4(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags)
{
int i;
int t0, t1, t2, t3, t4;
#define COMPENSATE(x) ((x + 1)>>1)
for (i = 0; i < 4; i++) {
if (!in[0] && !in[1] && !in[2] && !in[3]) {
memset(out, 0, 4*sizeof(out[0]));
} else {
IVI_INV_SLANT4( in[0], in[1], in[2], in[3],
out[0], out[1], out[2], out[3],
t0, t1, t2, t3, t4);
}
in += 4;
out += pitch;
}
#undef COMPENSATE
}
void ff_ivi_col_slant4(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags)
{
int i, row2;
int t0, t1, t2, t3, t4;
row2 = pitch << 1;
#define COMPENSATE(x) ((x + 1)>>1)
for (i = 0; i < 4; i++) {
if (flags[i]) {
IVI_INV_SLANT4(in[0], in[4], in[8], in[12],
out[0], out[pitch], out[row2], out[row2 + pitch],
t0, t1, t2, t3, t4);
} else {
out[0] = out[pitch] = out[row2] = out[row2 + pitch] = 0;
}
in++;
out++;
}
#undef COMPENSATE
}
void ff_ivi_put_pixels_8x8(const int32_t *in, int16_t *out, uint32_t pitch,
const uint8_t *flags)
{
......
libavcodec/ivi_dsp.h
View file @ 6647aa04
......@@ -65,6 +65,71 @@ void ff_ivi_recompose_haar(const IVIPlaneDesc *plane, uint8_t *dst,
void ff_ivi_inverse_haar_8x8(const int32_t *in, int16_t *out, uint32_t pitch,
const uint8_t *flags);
/**
* one-dimensional inverse 8-point Haar transform on rows for Indeo 4
*
* @param[in] in pointer to the vector of transform coefficients
* @param[out] out pointer to the output buffer (frame)
* @param[in] pitch pitch to move to the next y line
* @param[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_row_haar8(const int32_t *in, int16_t *out, uint32_t pitch,
const uint8_t *flags);
/**
* one-dimensional inverse 8-point Haar transform on columns for Indeo 4
*
* @param[in] in pointer to the vector of transform coefficients
* @param[out] out pointer to the output buffer (frame)
* @param[in] pitch pitch to move to the next y line
* @param[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_col_haar8(const int32_t *in, int16_t *out, uint32_t pitch,
const uint8_t *flags);
/**
* two-dimensional inverse Haar 4x4 transform for Indeo 4
*
* @param[in] in pointer to the vector of transform coefficients
* @param[out] out pointer to the output buffer (frame)
* @param[in] pitch pitch to move to the next y line
* @param[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_haar_4x4(const int32_t *in, int16_t *out, uint32_t pitch,
const uint8_t *flags);
/**
* one-dimensional inverse 4-point Haar transform on rows for Indeo 4
*
* @param[in] in pointer to the vector of transform coefficients
* @param[out] out pointer to the output buffer (frame)
* @param[in] pitch pitch to move to the next y line
* @param[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_row_haar4(const int32_t *in, int16_t *out, uint32_t pitch,
const uint8_t *flags);
/**
* one-dimensional inverse 4-point Haar transform on columns for Indeo 4
*
* @param[in] in pointer to the vector of transform coefficients
* @param[out] out pointer to the output buffer (frame)
* @param[in] pitch pitch to move to the next y line
* @param[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_col_haar4(const int32_t *in, int16_t *out, uint32_t pitch,
const uint8_t *flags);
/**
* DC-only two-dimensional inverse Haar transform for Indeo 4.
* Performing the inverse transform in this case is equivalent to
......@@ -141,6 +206,30 @@ void ff_ivi_row_slant8(const int32_t *in, int16_t *out, uint32_t pitch,
void ff_ivi_col_slant8(const int32_t *in, int16_t *out, uint32_t pitch,
const uint8_t *flags);
/**
* inverse 1D row slant transform
*
* @param[in] in pointer to the vector of transform coefficients
* @param[out] out pointer to the output buffer (frame)
* @param[in] pitch pitch to move to the next y line
* @param[in] flags pointer to the array of column flags (unused here)
*/
void ff_ivi_row_slant4(const int32_t *in, int16_t *out, uint32_t pitch,
const uint8_t *flags);
/**
* inverse 1D column slant transform
*
* @param[in] in pointer to the vector of transform coefficients
* @param[out] out pointer to the output buffer (frame)
* @param[in] pitch pitch to move to the next y line
* @param[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_col_slant4(const int32_t *in, int16_t *out, uint32_t pitch,
const uint8_t *flags);
/**
* DC-only inverse row slant transform
*/
......
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