/* * DSP functions for Indeo Video Interactive codecs (Indeo4 and Indeo5) * * Copyright (c) 2009-2011 Maxim Poliakovski * * This file is part of Libav. * * Libav 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. * * Libav 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 Libav; 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 recomposition) * for Indeo Video Interactive codecs. */ #ifndef AVCODEC_IVI_DSP_H #define AVCODEC_IVI_DSP_H #include <stddef.h> #include <stdint.h> #include "ivi.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 ptrdiff_t 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 ptrdiff_t 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, ptrdiff_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, ptrdiff_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, ptrdiff_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, ptrdiff_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, ptrdiff_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, ptrdiff_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, ptrdiff_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, ptrdiff_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, ptrdiff_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, ptrdiff_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, ptrdiff_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, ptrdiff_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, ptrdiff_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, ptrdiff_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, ptrdiff_t pitch, int blk_size); /** * DC-only inverse column slant transform */ void ff_ivi_dc_col_slant(const int32_t *in, int16_t *out, ptrdiff_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, ptrdiff_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, ptrdiff_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, ptrdiff_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, ptrdiff_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, ptrdiff_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, ptrdiff_t pitch, int mc_type); /** * 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 backward reference frame * @param[in] ref_buf2 pointer to the corresponding block in the forward reference frame * @param[in] pitch pitch for moving to the next y line * @param[in] mc_type interpolation type for backward reference * @param[in] mc_type2 interpolation type for forward reference */ void ff_ivi_mc_avg_8x8_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2); /** * 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 backward reference frame * @param[in] ref_buf2 pointer to the corresponding block in the forward reference frame * @param[in] pitch pitch for moving to the next y line * @param[in] mc_type interpolation type for backward reference * @param[in] mc_type2 interpolation type for forward reference */ void ff_ivi_mc_avg_4x4_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2); /** * motion compensation without adding delta for B-frames * * @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 backward reference frame * @param[in] ref_buf2 pointer to the corresponding block in the forward reference frame * @param[in] pitch pitch for moving to the next y line * @param[in] mc_type interpolation type for backward reference * @param[in] mc_type2 interpolation type for forward reference */ void ff_ivi_mc_avg_8x8_no_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2); /** * 4x4 block motion compensation without adding delta for B-frames * * @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 backward reference frame * @param[in] ref_buf2 pointer to the corresponding block in the forward reference frame * @param[in] pitch pitch for moving to the next y line * @param[in] mc_type interpolation type for backward reference * @param[in] mc_type2 interpolation type for forward reference */ void ff_ivi_mc_avg_4x4_no_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2); #endif /* AVCODEC_IVI_DSP_H */