From 3b636f21daa6996e20ef97131a1c3649c3043304 Mon Sep 17 00:00:00 2001 From: David Conrad Date: Tue, 22 Jun 2010 19:24:09 +0000 Subject: Native VP8 decoder. Patch by David Conrad and myself. Originally committed as revision 23719 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/vp8dsp.h | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 libavcodec/vp8dsp.h (limited to 'libavcodec/vp8dsp.h') diff --git a/libavcodec/vp8dsp.h b/libavcodec/vp8dsp.h new file mode 100644 index 0000000000..fa7bf76d29 --- /dev/null +++ b/libavcodec/vp8dsp.h @@ -0,0 +1,67 @@ +/** + * VP8 compatible video decoder + * + * Copyright (C) 2010 David Conrad + * Copyright (C) 2010 Ronald S. Bultje + * + * 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 + */ + + +#ifndef AVCODEC_VP8DSP_H +#define AVCODEC_VP8DSP_H + +#include "dsputil.h" + +typedef struct VP8DSPContext { + void (*vp8_luma_dc_wht)(DCTELEM block[4][4][16], DCTELEM dc[16]); + void (*vp8_idct_add)(uint8_t *dst, DCTELEM block[16], int stride); + void (*vp8_idct_dc_add)(uint8_t *dst, DCTELEM block[16], int stride); + + // loop filter applied to edges between macroblocks + void (*vp8_v_loop_filter16)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh); + void (*vp8_h_loop_filter16)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh); + void (*vp8_v_loop_filter8)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh); + void (*vp8_h_loop_filter8)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh); + + // loop filter applied to inner macroblock edges + void (*vp8_v_loop_filter16_inner)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh); + void (*vp8_h_loop_filter16_inner)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh); + void (*vp8_v_loop_filter8_inner)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh); + void (*vp8_h_loop_filter8_inner)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh); + + void (*vp8_v_loop_filter_simple)(uint8_t *dst, int stride, int flim); + void (*vp8_h_loop_filter_simple)(uint8_t *dst, int stride, int flim); + + /** + * first dimension: width>>3, height is assumed equal to width + * second dimension: 0 if no vertical interpolation is needed; + * 1 4-tap vertical interpolation filter (my & 1) + * 2 6-tap vertical interpolation filter (!(my & 1)) + * third dimension: same as second dimention, for horizontal interpolation + * so something like put_vp8_epel_pixels_tab[width>>3][2*!!my-(my&1)][2*!!mx-(mx&1)](..., mx, my) + */ + h264_chroma_mc_func put_vp8_epel_pixels_tab[3][3][3]; +} VP8DSPContext; + +void ff_put_vp8_pixels16_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y); +void ff_put_vp8_pixels8_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y); +void ff_put_vp8_pixels4_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y); + +void ff_vp8dsp_init(VP8DSPContext *c); + +#endif /* AVCODEC_VP8DSP_H */ -- cgit v1.2.3