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DSP functions (inverse transforms, motion compensations, wavelet recompostion) for Indeo Video Interactive codecs. More...
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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_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_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_row_slant (const int32_t *in, int16_t *out, uint32_t pitch, int blk_size) |
DC-only inverse row 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) |
Copies 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) |
Copies the DC coefficient into the first pixel of the block and zeroes all others. | |
void | ff_ivi_mc_8x8_delta (int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type) |
8x8 block motion compensation with adding delta | |
void | ff_ivi_mc_4x4_delta (int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type) |
4x4 block motion compensation with adding delta | |
void | ff_ivi_mc_8x8_no_delta (int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type) |
motion compensation without adding delta | |
void | ff_ivi_mc_4x4_no_delta (int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type) |
4x4 block motion compensation without adding delta |
DSP functions (inverse transforms, motion compensations, wavelet recompostion) for Indeo Video Interactive codecs.
Definition in file ivi_dsp.h.
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) |
pitch | [in] pitch to move to the next y line |
flags | [in] pointer to the array of column flags: != 0 - non_empty column, 0 - empty one (this array must be filled by caller) |
Definition at line 362 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 389 of file ivi_dsp.c.
Referenced by decode_gop_header().
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 344 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) |
pitch | [in] pitch to move to the next y line |
blk_size | [in] transform block size |
Definition at line 311 of file ivi_dsp.c.
Referenced by decode_gop_header().
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) |
pitch | [in] pitch to move to the next y line |
flags | [in] pointer to the array of column flags: != 0 - non_empty column, 0 - empty one (this array must be filled by caller) |
Definition at line 271 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) |
pitch | [in] pitch to move to the next y line |
flags | [in] pointer to the array of column flags: != 0 - non_empty column, 0 - empty one (this array must be filled by caller) |
Definition at line 231 of file ivi_dsp.c.
Referenced by decode_gop_header().
void ff_ivi_mc_4x4_delta | ( | int16_t * | buf, |
const int16_t * | ref_buf, | ||
uint32_t | pitch, | ||
int | mc_type | ||
) |
4x4 block motion compensation with adding delta
buf | [in,out] pointer to the block in the current frame buffer containing delta |
ref_buf | [in] pointer to the corresponding block in the reference frame |
pitch | [in] pitch for moving to the next y line |
mc_type | [in] interpolation type |
Referenced by ff_ivi_decode_blocks().
void ff_ivi_mc_4x4_no_delta | ( | int16_t * | buf, |
const int16_t * | ref_buf, | ||
uint32_t | pitch, | ||
int | mc_type | ||
) |
4x4 block motion compensation without adding delta
buf | [in,out] pointer to the block in the current frame receiving the result |
ref_buf | [in] pointer to the corresponding block in the reference frame |
pitch | [in] pitch for moving to the next y line |
mc_type | [in] interpolation type |
Referenced by ff_ivi_decode_blocks(), and ff_ivi_process_empty_tile().
void ff_ivi_mc_8x8_delta | ( | int16_t * | buf, |
const int16_t * | ref_buf, | ||
uint32_t | pitch, | ||
int | mc_type | ||
) |
8x8 block motion compensation with adding delta
buf | [in,out] pointer to the block in the current frame buffer containing delta |
ref_buf | [in] pointer to the corresponding block in the reference frame |
pitch | [in] pitch for moving to the next y line |
mc_type | [in] interpolation type |
Referenced by ff_ivi_decode_blocks().
void ff_ivi_mc_8x8_no_delta | ( | int16_t * | buf, |
const int16_t * | ref_buf, | ||
uint32_t | pitch, | ||
int | mc_type | ||
) |
motion compensation without adding delta
buf | [in,out] pointer to the block in the current frame receiving the result |
ref_buf | [in] pointer to the corresponding block in the reference frame |
pitch | [in] pitch for moving to the next y line |
mc_type | [in] interpolation type |
Referenced by ff_ivi_decode_blocks(), and ff_ivi_process_empty_tile().
void ff_ivi_put_dc_pixel_8x8 | ( | const int32_t * | in, |
int16_t * | out, | ||
uint32_t | pitch, | ||
int | blk_size | ||
) |
Copies the DC coefficient into the first pixel of the block and zeroes all others.
Definition at line 413 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 | ||
) |
Copies the pixels into the frame buffer.
Definition at line 403 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
plane | [in] pointer to the descriptor of the plane being processed |
dst | [out] pointer to the destination buffer |
dst_pitch | [in] pitch of the destination buffer |
num_bands | [in] number of wavelet bands to be processed |
Definition at line 35 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) |
pitch | [in] pitch to move to the next y line |
flags | [in] pointer to the array of column flags (unused here) |
Definition at line 324 of file ivi_dsp.c.
Referenced by decode_gop_header().