|
- /*
- * Copyright (c) 2003-2010 Michael Niedermayer <michaelni@gmx.at>
- *
- * 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
- * H.264 DSP functions.
- * @author Michael Niedermayer <michaelni@gmx.at>
- */
-
- #ifndef AVCODEC_H264DSP_H
- #define AVCODEC_H264DSP_H
-
- #include <stdint.h>
-
- typedef void (*h264_weight_func)(uint8_t *block, int stride, int height,
- int log2_denom, int weight, int offset);
- typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src,
- int stride, int height, int log2_denom,
- int weightd, int weights, int offset);
-
- /**
- * Context for storing H.264 DSP functions
- */
- typedef struct H264DSPContext {
- /* weighted MC */
- h264_weight_func weight_h264_pixels_tab[4];
- h264_biweight_func biweight_h264_pixels_tab[4];
-
- /* loop filter */
- void (*h264_v_loop_filter_luma)(uint8_t *pix /*align 16*/, int stride,
- int alpha, int beta, int8_t *tc0);
- void (*h264_h_loop_filter_luma)(uint8_t *pix /*align 4 */, int stride,
- int alpha, int beta, int8_t *tc0);
- void (*h264_h_loop_filter_luma_mbaff)(uint8_t *pix /*align 16*/, int stride,
- int alpha, int beta, int8_t *tc0);
- /* v/h_loop_filter_luma_intra: align 16 */
- void (*h264_v_loop_filter_luma_intra)(uint8_t *pix, int stride,
- int alpha, int beta);
- void (*h264_h_loop_filter_luma_intra)(uint8_t *pix, int stride,
- int alpha, int beta);
- void (*h264_h_loop_filter_luma_mbaff_intra)(uint8_t *pix /*align 16*/,
- int stride, int alpha, int beta);
- void (*h264_v_loop_filter_chroma)(uint8_t *pix /*align 8*/, int stride,
- int alpha, int beta, int8_t *tc0);
- void (*h264_h_loop_filter_chroma)(uint8_t *pix /*align 4*/, int stride,
- int alpha, int beta, int8_t *tc0);
- void (*h264_h_loop_filter_chroma_mbaff)(uint8_t *pix /*align 8*/,
- int stride, int alpha, int beta,
- int8_t *tc0);
- void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix /*align 8*/,
- int stride, int alpha, int beta);
- void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix /*align 8*/,
- int stride, int alpha, int beta);
- void (*h264_h_loop_filter_chroma_mbaff_intra)(uint8_t *pix /*align 8*/,
- int stride, int alpha, int beta);
- // h264_loop_filter_strength: simd only. the C version is inlined in h264_loopfilter.c
- void (*h264_loop_filter_strength)(int16_t bS[2][4][4], uint8_t nnz[40],
- int8_t ref[2][40], int16_t mv[2][40][2],
- int bidir, int edges, int step,
- int mask_mv0, int mask_mv1, int field);
-
- /* IDCT */
- void (*h264_idct_add)(uint8_t *dst /*align 4*/,
- int16_t *block /*align 16*/, int stride);
- void (*h264_idct8_add)(uint8_t *dst /*align 8*/,
- int16_t *block /*align 16*/, int stride);
- void (*h264_idct_dc_add)(uint8_t *dst /*align 4*/,
- int16_t *block /*align 16*/, int stride);
- void (*h264_idct8_dc_add)(uint8_t *dst /*align 8*/,
- int16_t *block /*align 16*/, int stride);
-
- void (*h264_idct_add16)(uint8_t *dst /*align 16*/, const int *blockoffset,
- int16_t *block /*align 16*/, int stride,
- const uint8_t nnzc[15 * 8]);
- void (*h264_idct8_add4)(uint8_t *dst /*align 16*/, const int *blockoffset,
- int16_t *block /*align 16*/, int stride,
- const uint8_t nnzc[15 * 8]);
- void (*h264_idct_add8)(uint8_t **dst /*align 16*/, const int *blockoffset,
- int16_t *block /*align 16*/, int stride,
- const uint8_t nnzc[15 * 8]);
- void (*h264_idct_add16intra)(uint8_t *dst /*align 16*/, const int *blockoffset,
- int16_t *block /*align 16*/,
- int stride, const uint8_t nnzc[15 * 8]);
- void (*h264_luma_dc_dequant_idct)(int16_t *output,
- int16_t *input /*align 16*/, int qmul);
- void (*h264_chroma_dc_dequant_idct)(int16_t *block, int qmul);
-
- /* bypass-transform */
- void (*h264_add_pixels8_clear)(uint8_t *dst, int16_t *block, int stride);
- void (*h264_add_pixels4_clear)(uint8_t *dst, int16_t *block, int stride);
-
- /**
- * Search buf from the start for up to size bytes. Return the index
- * of a zero byte, or >= size if not found. Ideally, use lookahead
- * to filter out any zero bytes that are known to not be followed by
- * one or more further zero bytes and a one byte. Better still, filter
- * out any bytes that form the trailing_zero_8bits syntax element too.
- */
- int (*startcode_find_candidate)(const uint8_t *buf, int size);
- } H264DSPContext;
-
- void ff_h264dsp_init(H264DSPContext *c, const int bit_depth,
- const int chroma_format_idc);
- void ff_h264dsp_init_aarch64(H264DSPContext *c, const int bit_depth,
- const int chroma_format_idc);
- void ff_h264dsp_init_arm(H264DSPContext *c, const int bit_depth,
- const int chroma_format_idc);
- void ff_h264dsp_init_ppc(H264DSPContext *c, const int bit_depth,
- const int chroma_format_idc);
- void ff_h264dsp_init_x86(H264DSPContext *c, const int bit_depth,
- const int chroma_format_idc);
- void ff_h264dsp_init_mips(H264DSPContext *c, const int bit_depth,
- const int chroma_format_idc);
-
- #endif /* AVCODEC_H264DSP_H */
|
