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298 lines
12 KiB
298 lines
12 KiB
/* |
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* DSP functions for Indeo Video Interactive codecs (Indeo4 and Indeo5) |
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* |
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* Copyright (c) 2009-2011 Maxim Poliakovski |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/** |
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* @file |
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* DSP functions (inverse transforms, motion compensations, wavelet recompostion) |
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* for Indeo Video Interactive codecs. |
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*/ |
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#ifndef AVCODEC_IVI_DSP_H |
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#define AVCODEC_IVI_DSP_H |
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#include "avcodec.h" |
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#include "ivi_common.h" |
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/** |
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* 5/3 wavelet recomposition filter for Indeo5 |
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* |
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* @param[in] plane pointer to the descriptor of the plane being processed |
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* @param[out] dst pointer to the destination buffer |
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* @param[in] dst_pitch pitch of the destination buffer |
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*/ |
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void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst, |
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const int dst_pitch); |
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/** |
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* Haar wavelet recomposition filter for Indeo 4 |
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* |
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* @param[in] plane pointer to the descriptor of the plane being processed |
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* @param[out] dst pointer to the destination buffer |
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* @param[in] dst_pitch pitch of the destination buffer |
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*/ |
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void ff_ivi_recompose_haar(const IVIPlaneDesc *plane, uint8_t *dst, |
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const int dst_pitch); |
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/** |
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* two-dimensional inverse Haar 8x8 transform for Indeo 4 |
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* |
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* @param[in] in pointer to the vector of transform coefficients |
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* @param[out] out pointer to the output buffer (frame) |
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* @param[in] pitch pitch to move to the next y line |
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* @param[in] flags pointer to the array of column flags: |
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* != 0 - non_empty column, 0 - empty one |
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* (this array must be filled by caller) |
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*/ |
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void ff_ivi_inverse_haar_8x8(const int32_t *in, int16_t *out, uint32_t pitch, |
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const uint8_t *flags); |
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void ff_ivi_inverse_haar_8x1(const int32_t *in, int16_t *out, uint32_t pitch, |
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const uint8_t *flags); |
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void ff_ivi_inverse_haar_1x8(const int32_t *in, int16_t *out, uint32_t pitch, |
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const uint8_t *flags); |
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/** |
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* one-dimensional inverse 8-point Haar transform on rows for Indeo 4 |
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* |
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* @param[in] in pointer to the vector of transform coefficients |
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* @param[out] out pointer to the output buffer (frame) |
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* @param[in] pitch pitch to move to the next y line |
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* @param[in] flags pointer to the array of column flags: |
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* != 0 - non_empty column, 0 - empty one |
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* (this array must be filled by caller) |
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*/ |
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void ff_ivi_row_haar8(const int32_t *in, int16_t *out, uint32_t pitch, |
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const uint8_t *flags); |
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/** |
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* one-dimensional inverse 8-point Haar transform on columns for Indeo 4 |
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* |
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* @param[in] in pointer to the vector of transform coefficients |
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* @param[out] out pointer to the output buffer (frame) |
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* @param[in] pitch pitch to move to the next y line |
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* @param[in] flags pointer to the array of column flags: |
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* != 0 - non_empty column, 0 - empty one |
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* (this array must be filled by caller) |
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*/ |
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void ff_ivi_col_haar8(const int32_t *in, int16_t *out, uint32_t pitch, |
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const uint8_t *flags); |
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/** |
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* two-dimensional inverse Haar 4x4 transform for Indeo 4 |
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* |
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* @param[in] in pointer to the vector of transform coefficients |
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* @param[out] out pointer to the output buffer (frame) |
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* @param[in] pitch pitch to move to the next y line |
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* @param[in] flags pointer to the array of column flags: |
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* != 0 - non_empty column, 0 - empty one |
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* (this array must be filled by caller) |
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*/ |
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void ff_ivi_inverse_haar_4x4(const int32_t *in, int16_t *out, uint32_t pitch, |
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const uint8_t *flags); |
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/** |
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* one-dimensional inverse 4-point Haar transform on rows for Indeo 4 |
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* |
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* @param[in] in pointer to the vector of transform coefficients |
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* @param[out] out pointer to the output buffer (frame) |
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* @param[in] pitch pitch to move to the next y line |
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* @param[in] flags pointer to the array of column flags: |
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* != 0 - non_empty column, 0 - empty one |
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* (this array must be filled by caller) |
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*/ |
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void ff_ivi_row_haar4(const int32_t *in, int16_t *out, uint32_t pitch, |
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const uint8_t *flags); |
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/** |
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* one-dimensional inverse 4-point Haar transform on columns for Indeo 4 |
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* |
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* @param[in] in pointer to the vector of transform coefficients |
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* @param[out] out pointer to the output buffer (frame) |
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* @param[in] pitch pitch to move to the next y line |
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* @param[in] flags pointer to the array of column flags: |
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* != 0 - non_empty column, 0 - empty one |
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* (this array must be filled by caller) |
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*/ |
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void ff_ivi_col_haar4(const int32_t *in, int16_t *out, uint32_t pitch, |
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const uint8_t *flags); |
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/** |
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* DC-only two-dimensional inverse Haar transform for Indeo 4. |
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* Performing the inverse transform in this case is equivalent to |
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* spreading DC_coeff >> 3 over the whole block. |
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* |
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* @param[in] in pointer to the dc coefficient |
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* @param[out] out pointer to the output buffer (frame) |
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* @param[in] pitch pitch to move to the next y line |
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* @param[in] blk_size transform block size |
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*/ |
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void ff_ivi_dc_haar_2d(const int32_t *in, int16_t *out, uint32_t pitch, |
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int blk_size); |
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/** |
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* two-dimensional inverse slant 8x8 transform |
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* |
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* @param[in] in pointer to the vector of transform coefficients |
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* @param[out] out pointer to the output buffer (frame) |
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* @param[in] pitch pitch to move to the next y line |
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* @param[in] flags pointer to the array of column flags: |
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* != 0 - non_empty column, 0 - empty one |
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* (this array must be filled by caller) |
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*/ |
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void ff_ivi_inverse_slant_8x8(const int32_t *in, int16_t *out, uint32_t pitch, |
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const uint8_t *flags); |
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/** |
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* two-dimensional inverse slant 4x4 transform |
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* |
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* @param[in] in pointer to the vector of transform coefficients |
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* @param[out] out pointer to the output buffer (frame) |
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* @param[in] pitch pitch to move to the next y line |
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* @param[in] flags pointer to the array of column flags: |
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* != 0 - non_empty column, 0 - empty one |
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* (this array must be filled by caller) |
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*/ |
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void ff_ivi_inverse_slant_4x4(const int32_t *in, int16_t *out, uint32_t pitch, |
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const uint8_t *flags); |
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/** |
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* DC-only two-dimensional inverse slant transform. |
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* Performing the inverse slant transform in this case is equivalent to |
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* spreading (DC_coeff + 1)/2 over the whole block. |
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* It works much faster than performing the slant transform on a vector of zeroes. |
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* |
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* @param[in] in pointer to the dc coefficient |
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* @param[out] out pointer to the output buffer (frame) |
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* @param[in] pitch pitch to move to the next y line |
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* @param[in] blk_size transform block size |
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*/ |
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void ff_ivi_dc_slant_2d(const int32_t *in, int16_t *out, uint32_t pitch, int blk_size); |
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/** |
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* inverse 1D row slant transform |
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* |
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* @param[in] in pointer to the vector of transform coefficients |
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* @param[out] out pointer to the output buffer (frame) |
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* @param[in] pitch pitch to move to the next y line |
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* @param[in] flags pointer to the array of column flags (unused here) |
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*/ |
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void ff_ivi_row_slant8(const int32_t *in, int16_t *out, uint32_t pitch, |
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const uint8_t *flags); |
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/** |
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* inverse 1D column slant transform |
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* |
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* @param[in] in pointer to the vector of transform coefficients |
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* @param[out] out pointer to the output buffer (frame) |
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* @param[in] pitch pitch to move to the next y line |
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* @param[in] flags pointer to the array of column flags: |
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* != 0 - non_empty column, 0 - empty one |
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* (this array must be filled by caller) |
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*/ |
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void ff_ivi_col_slant8(const int32_t *in, int16_t *out, uint32_t pitch, |
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const uint8_t *flags); |
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/** |
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* inverse 1D row slant transform |
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* |
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* @param[in] in pointer to the vector of transform coefficients |
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* @param[out] out pointer to the output buffer (frame) |
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* @param[in] pitch pitch to move to the next y line |
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* @param[in] flags pointer to the array of column flags (unused here) |
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*/ |
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void ff_ivi_row_slant4(const int32_t *in, int16_t *out, uint32_t pitch, |
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const uint8_t *flags); |
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/** |
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* inverse 1D column slant transform |
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* |
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* @param[in] in pointer to the vector of transform coefficients |
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* @param[out] out pointer to the output buffer (frame) |
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* @param[in] pitch pitch to move to the next y line |
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* @param[in] flags pointer to the array of column flags: |
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* != 0 - non_empty column, 0 - empty one |
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* (this array must be filled by caller) |
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*/ |
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void ff_ivi_col_slant4(const int32_t *in, int16_t *out, uint32_t pitch, |
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const uint8_t *flags); |
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/** |
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* DC-only inverse row slant transform |
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*/ |
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void ff_ivi_dc_row_slant(const int32_t *in, int16_t *out, uint32_t pitch, int blk_size); |
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/** |
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* DC-only inverse column slant transform |
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*/ |
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void ff_ivi_dc_col_slant(const int32_t *in, int16_t *out, uint32_t pitch, int blk_size); |
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/** |
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* Copy the pixels into the frame buffer. |
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*/ |
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void ff_ivi_put_pixels_8x8(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags); |
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/** |
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* Copy the DC coefficient into the first pixel of the block and |
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* zero all others. |
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*/ |
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void ff_ivi_put_dc_pixel_8x8(const int32_t *in, int16_t *out, uint32_t pitch, int blk_size); |
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/** |
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* 8x8 block motion compensation with adding delta |
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* |
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* @param[in,out] buf pointer to the block in the current frame buffer containing delta |
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* @param[in] ref_buf pointer to the corresponding block in the reference frame |
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* @param[in] pitch pitch for moving to the next y line |
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* @param[in] mc_type interpolation type |
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*/ |
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void ff_ivi_mc_8x8_delta(int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type); |
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/** |
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* 4x4 block motion compensation with adding delta |
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* |
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* @param[in,out] buf pointer to the block in the current frame buffer containing delta |
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* @param[in] ref_buf pointer to the corresponding block in the reference frame |
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* @param[in] pitch pitch for moving to the next y line |
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* @param[in] mc_type interpolation type |
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*/ |
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void ff_ivi_mc_4x4_delta(int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type); |
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/** |
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* motion compensation without adding delta |
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* |
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* @param[in,out] buf pointer to the block in the current frame receiving the result |
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* @param[in] ref_buf pointer to the corresponding block in the reference frame |
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* @param[in] pitch pitch for moving to the next y line |
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* @param[in] mc_type interpolation type |
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*/ |
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void ff_ivi_mc_8x8_no_delta(int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type); |
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/** |
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* 4x4 block motion compensation without adding delta |
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* |
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* @param[in,out] buf pointer to the block in the current frame receiving the result |
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* @param[in] ref_buf pointer to the corresponding block in the reference frame |
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* @param[in] pitch pitch for moving to the next y line |
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* @param[in] mc_type interpolation type |
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*/ |
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void ff_ivi_mc_4x4_no_delta(int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type); |
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#endif /* AVCODEC_IVI_DSP_H */
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