0,0 → 1,298 |
/* |
* DSP functions for Indeo Video Interactive codecs (Indeo4 and Indeo5) |
* |
* Copyright (c) 2009-2011 Maxim Poliakovski |
* |
* This file is part of FFmpeg. |
* |
* FFmpeg is free software; you can redistribute it and/or |
* modify it under the terms of the GNU Lesser General Public |
* License as published by the Free Software Foundation; either |
* version 2.1 of the License, or (at your option) any later version. |
* |
* FFmpeg is distributed in the hope that it will be useful, |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
* Lesser General Public License for more details. |
* |
* You should have received a copy of the GNU Lesser General Public |
* License along with FFmpeg; if not, write to the Free Software |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
*/ |
|
/** |
* @file |
* DSP functions (inverse transforms, motion compensations, wavelet recompostion) |
* for Indeo Video Interactive codecs. |
*/ |
|
#ifndef AVCODEC_IVI_DSP_H |
#define AVCODEC_IVI_DSP_H |
|
#include "avcodec.h" |
#include "ivi_common.h" |
|
/** |
* 5/3 wavelet recomposition filter for Indeo5 |
* |
* @param[in] plane pointer to the descriptor of the plane being processed |
* @param[out] dst pointer to the destination buffer |
* @param[in] dst_pitch pitch of the destination buffer |
*/ |
void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst, |
const int dst_pitch); |
|
/** |
* Haar wavelet recomposition filter for Indeo 4 |
* |
* @param[in] plane pointer to the descriptor of the plane being processed |
* @param[out] dst pointer to the destination buffer |
* @param[in] dst_pitch pitch of the destination buffer |
*/ |
void ff_ivi_recompose_haar(const IVIPlaneDesc *plane, uint8_t *dst, |
const int dst_pitch); |
|
/** |
* two-dimensional inverse Haar 8x8 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_8x8(const int32_t *in, int16_t *out, uint32_t pitch, |
const uint8_t *flags); |
void ff_ivi_inverse_haar_8x1(const int32_t *in, int16_t *out, uint32_t pitch, |
const uint8_t *flags); |
void ff_ivi_inverse_haar_1x8(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 |
* spreading DC_coeff >> 3 over the whole block. |
* |
* @param[in] in pointer to the dc coefficient |
* @param[out] out pointer to the output buffer (frame) |
* @param[in] pitch pitch to move to the next y line |
* @param[in] blk_size transform block size |
*/ |
void ff_ivi_dc_haar_2d(const int32_t *in, int16_t *out, uint32_t pitch, |
int blk_size); |
|
/** |
* two-dimensional inverse slant 8x8 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_inverse_slant_8x8(const int32_t *in, int16_t *out, uint32_t pitch, |
const uint8_t *flags); |
|
/** |
* two-dimensional inverse slant 4x4 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_inverse_slant_4x4(const int32_t *in, int16_t *out, uint32_t pitch, |
const uint8_t *flags); |
|
/** |
* 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. |
* |
* @param[in] in pointer to the dc coefficient |
* @param[out] out pointer to the output buffer (frame) |
* @param[in] pitch pitch to move to the next y line |
* @param[in] blk_size transform block size |
*/ |
void ff_ivi_dc_slant_2d(const int32_t *in, int16_t *out, uint32_t pitch, int blk_size); |
|
/** |
* 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_slant8(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_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 |
*/ |
void ff_ivi_dc_row_slant(const int32_t *in, int16_t *out, uint32_t pitch, int blk_size); |
|
/** |
* DC-only inverse column slant transform |
*/ |
void ff_ivi_dc_col_slant(const int32_t *in, int16_t *out, uint32_t pitch, int blk_size); |
|
/** |
* Copy the pixels into the frame buffer. |
*/ |
void ff_ivi_put_pixels_8x8(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags); |
|
/** |
* Copy the DC coefficient into the first pixel of the block and |
* zero all others. |
*/ |
void ff_ivi_put_dc_pixel_8x8(const int32_t *in, int16_t *out, uint32_t pitch, int blk_size); |
|
/** |
* 8x8 block motion compensation with adding delta |
* |
* @param[in,out] buf pointer to the block in the current frame buffer containing delta |
* @param[in] ref_buf pointer to the corresponding block in the reference frame |
* @param[in] pitch pitch for moving to the next y line |
* @param[in] mc_type interpolation type |
*/ |
void ff_ivi_mc_8x8_delta(int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type); |
|
/** |
* 4x4 block motion compensation with adding delta |
* |
* @param[in,out] buf pointer to the block in the current frame buffer containing delta |
* @param[in] ref_buf pointer to the corresponding block in the reference frame |
* @param[in] pitch pitch for moving to the next y line |
* @param[in] mc_type interpolation type |
*/ |
void ff_ivi_mc_4x4_delta(int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type); |
|
/** |
* motion compensation without adding delta |
* |
* @param[in,out] buf pointer to the block in the current frame receiving the result |
* @param[in] ref_buf pointer to the corresponding block in the reference frame |
* @param[in] pitch pitch for moving to the next y line |
* @param[in] mc_type interpolation type |
*/ |
void ff_ivi_mc_8x8_no_delta(int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type); |
|
/** |
* 4x4 block motion compensation without adding delta |
* |
* @param[in,out] buf pointer to the block in the current frame receiving the result |
* @param[in] ref_buf pointer to the corresponding block in the reference frame |
* @param[in] pitch pitch for moving to the next y line |
* @param[in] mc_type interpolation type |
*/ |
void ff_ivi_mc_4x4_no_delta(int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type); |
|
#endif /* AVCODEC_IVI_DSP_H */ |