diff options
Diffstat (limited to 'media/ffvpx/libavcodec/h264dsp.h')
| -rw-r--r-- | media/ffvpx/libavcodec/h264dsp.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/h264dsp.h b/media/ffvpx/libavcodec/h264dsp.h new file mode 100644 index 0000000000..cbea3173c6 --- /dev/null +++ b/media/ffvpx/libavcodec/h264dsp.h @@ -0,0 +1,133 @@ +/* + * 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> +#include <stddef.h> + +typedef void (*h264_weight_func)(uint8_t *block, ptrdiff_t stride, int height, + int log2_denom, int weight, int offset); +typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src, + ptrdiff_t 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*/, ptrdiff_t stride, + int alpha, int beta, int8_t *tc0); + void (*h264_h_loop_filter_luma)(uint8_t *pix /*align 4 */, ptrdiff_t stride, + int alpha, int beta, int8_t *tc0); + void (*h264_h_loop_filter_luma_mbaff)(uint8_t *pix /*align 16*/, ptrdiff_t 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, ptrdiff_t stride, + int alpha, int beta); + void (*h264_h_loop_filter_luma_intra)(uint8_t *pix, ptrdiff_t stride, + int alpha, int beta); + void (*h264_h_loop_filter_luma_mbaff_intra)(uint8_t *pix /*align 16*/, + ptrdiff_t stride, int alpha, int beta); + void (*h264_v_loop_filter_chroma)(uint8_t *pix /*align 8*/, ptrdiff_t stride, + int alpha, int beta, int8_t *tc0); + void (*h264_h_loop_filter_chroma)(uint8_t *pix /*align 4*/, ptrdiff_t stride, + int alpha, int beta, int8_t *tc0); + void (*h264_h_loop_filter_chroma_mbaff)(uint8_t *pix /*align 8*/, + ptrdiff_t stride, int alpha, int beta, + int8_t *tc0); + void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix /*align 8*/, + ptrdiff_t stride, int alpha, int beta); + void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix /*align 8*/, + ptrdiff_t stride, int alpha, int beta); + void (*h264_h_loop_filter_chroma_mbaff_intra)(uint8_t *pix /*align 8*/, + ptrdiff_t 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 */ |