From 8992cb1d0d07edc33d274f6d7924ecdf6f83d994 Mon Sep 17 00:00:00 2001 From: Tim Redfern Date: Thu, 5 Sep 2013 17:57:22 +0100 Subject: making act segmenter --- ffmpeg/libavcodec/h264dsp_template.c | 328 +++++++++++++++++++++++++++++++++++ 1 file changed, 328 insertions(+) create mode 100644 ffmpeg/libavcodec/h264dsp_template.c (limited to 'ffmpeg/libavcodec/h264dsp_template.c') diff --git a/ffmpeg/libavcodec/h264dsp_template.c b/ffmpeg/libavcodec/h264dsp_template.c new file mode 100644 index 0000000..4d5faf0 --- /dev/null +++ b/ffmpeg/libavcodec/h264dsp_template.c @@ -0,0 +1,328 @@ +/* + * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder + * Copyright (c) 2003-2011 Michael Niedermayer + * + * 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 / AVC / MPEG4 part10 DSP functions. + * @author Michael Niedermayer + */ + +#include "bit_depth_template.c" + +#define op_scale1(x) block[x] = av_clip_pixel( (block[x]*weight + offset) >> log2_denom ) +#define op_scale2(x) dst[x] = av_clip_pixel( (src[x]*weights + dst[x]*weightd + offset) >> (log2_denom+1)) +#define H264_WEIGHT(W) \ +static void FUNCC(weight_h264_pixels ## W)(uint8_t *_block, int stride, int height, \ + int log2_denom, int weight, int offset) \ +{ \ + int y; \ + pixel *block = (pixel*)_block; \ + stride >>= sizeof(pixel)-1; \ + offset <<= (log2_denom + (BIT_DEPTH-8)); \ + if(log2_denom) offset += 1<<(log2_denom-1); \ + for (y = 0; y < height; y++, block += stride) { \ + op_scale1(0); \ + op_scale1(1); \ + if(W==2) continue; \ + op_scale1(2); \ + op_scale1(3); \ + if(W==4) continue; \ + op_scale1(4); \ + op_scale1(5); \ + op_scale1(6); \ + op_scale1(7); \ + if(W==8) continue; \ + op_scale1(8); \ + op_scale1(9); \ + op_scale1(10); \ + op_scale1(11); \ + op_scale1(12); \ + op_scale1(13); \ + op_scale1(14); \ + op_scale1(15); \ + } \ +} \ +static void FUNCC(biweight_h264_pixels ## W)(uint8_t *_dst, uint8_t *_src, int stride, int height, \ + int log2_denom, int weightd, int weights, int offset) \ +{ \ + int y; \ + pixel *dst = (pixel*)_dst; \ + pixel *src = (pixel*)_src; \ + stride >>= sizeof(pixel)-1; \ + offset <<= (BIT_DEPTH-8); \ + offset = ((offset + 1) | 1) << log2_denom; \ + for (y = 0; y < height; y++, dst += stride, src += stride) { \ + op_scale2(0); \ + op_scale2(1); \ + if(W==2) continue; \ + op_scale2(2); \ + op_scale2(3); \ + if(W==4) continue; \ + op_scale2(4); \ + op_scale2(5); \ + op_scale2(6); \ + op_scale2(7); \ + if(W==8) continue; \ + op_scale2(8); \ + op_scale2(9); \ + op_scale2(10); \ + op_scale2(11); \ + op_scale2(12); \ + op_scale2(13); \ + op_scale2(14); \ + op_scale2(15); \ + } \ +} + +H264_WEIGHT(16) +H264_WEIGHT(8) +H264_WEIGHT(4) +H264_WEIGHT(2) + +#undef op_scale1 +#undef op_scale2 +#undef H264_WEIGHT + +static av_always_inline av_flatten void FUNCC(h264_loop_filter_luma)(uint8_t *p_pix, int xstride, int ystride, int inner_iters, int alpha, int beta, int8_t *tc0) +{ + pixel *pix = (pixel*)p_pix; + int i, d; + xstride >>= sizeof(pixel)-1; + ystride >>= sizeof(pixel)-1; + alpha <<= BIT_DEPTH - 8; + beta <<= BIT_DEPTH - 8; + for( i = 0; i < 4; i++ ) { + const int tc_orig = tc0[i] << (BIT_DEPTH - 8); + if( tc_orig < 0 ) { + pix += inner_iters*ystride; + continue; + } + for( d = 0; d < inner_iters; d++ ) { + const int p0 = pix[-1*xstride]; + const int p1 = pix[-2*xstride]; + const int p2 = pix[-3*xstride]; + const int q0 = pix[0]; + const int q1 = pix[1*xstride]; + const int q2 = pix[2*xstride]; + + if( FFABS( p0 - q0 ) < alpha && + FFABS( p1 - p0 ) < beta && + FFABS( q1 - q0 ) < beta ) { + + int tc = tc_orig; + int i_delta; + + if( FFABS( p2 - p0 ) < beta ) { + if(tc_orig) + pix[-2*xstride] = p1 + av_clip( (( p2 + ( ( p0 + q0 + 1 ) >> 1 ) ) >> 1) - p1, -tc_orig, tc_orig ); + tc++; + } + if( FFABS( q2 - q0 ) < beta ) { + if(tc_orig) + pix[ xstride] = q1 + av_clip( (( q2 + ( ( p0 + q0 + 1 ) >> 1 ) ) >> 1) - q1, -tc_orig, tc_orig ); + tc++; + } + + i_delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc ); + pix[-xstride] = av_clip_pixel( p0 + i_delta ); /* p0' */ + pix[0] = av_clip_pixel( q0 - i_delta ); /* q0' */ + } + pix += ystride; + } + } +} +static void FUNCC(h264_v_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) +{ + FUNCC(h264_loop_filter_luma)(pix, stride, sizeof(pixel), 4, alpha, beta, tc0); +} +static void FUNCC(h264_h_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) +{ + FUNCC(h264_loop_filter_luma)(pix, sizeof(pixel), stride, 4, alpha, beta, tc0); +} +static void FUNCC(h264_h_loop_filter_luma_mbaff)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) +{ + FUNCC(h264_loop_filter_luma)(pix, sizeof(pixel), stride, 2, alpha, beta, tc0); +} + +static av_always_inline av_flatten void FUNCC(h264_loop_filter_luma_intra)(uint8_t *p_pix, int xstride, int ystride, int inner_iters, int alpha, int beta) +{ + pixel *pix = (pixel*)p_pix; + int d; + xstride >>= sizeof(pixel)-1; + ystride >>= sizeof(pixel)-1; + alpha <<= BIT_DEPTH - 8; + beta <<= BIT_DEPTH - 8; + for( d = 0; d < 4 * inner_iters; d++ ) { + const int p2 = pix[-3*xstride]; + const int p1 = pix[-2*xstride]; + const int p0 = pix[-1*xstride]; + + const int q0 = pix[ 0*xstride]; + const int q1 = pix[ 1*xstride]; + const int q2 = pix[ 2*xstride]; + + if( FFABS( p0 - q0 ) < alpha && + FFABS( p1 - p0 ) < beta && + FFABS( q1 - q0 ) < beta ) { + + if(FFABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){ + if( FFABS( p2 - p0 ) < beta) + { + const int p3 = pix[-4*xstride]; + /* p0', p1', p2' */ + pix[-1*xstride] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3; + pix[-2*xstride] = ( p2 + p1 + p0 + q0 + 2 ) >> 2; + pix[-3*xstride] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3; + } else { + /* p0' */ + pix[-1*xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2; + } + if( FFABS( q2 - q0 ) < beta) + { + const int q3 = pix[3*xstride]; + /* q0', q1', q2' */ + pix[0*xstride] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3; + pix[1*xstride] = ( p0 + q0 + q1 + q2 + 2 ) >> 2; + pix[2*xstride] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3; + } else { + /* q0' */ + pix[0*xstride] = ( 2*q1 + q0 + p1 + 2 ) >> 2; + } + }else{ + /* p0', q0' */ + pix[-1*xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2; + pix[ 0*xstride] = ( 2*q1 + q0 + p1 + 2 ) >> 2; + } + } + pix += ystride; + } +} +static void FUNCC(h264_v_loop_filter_luma_intra)(uint8_t *pix, int stride, int alpha, int beta) +{ + FUNCC(h264_loop_filter_luma_intra)(pix, stride, sizeof(pixel), 4, alpha, beta); +} +static void FUNCC(h264_h_loop_filter_luma_intra)(uint8_t *pix, int stride, int alpha, int beta) +{ + FUNCC(h264_loop_filter_luma_intra)(pix, sizeof(pixel), stride, 4, alpha, beta); +} +static void FUNCC(h264_h_loop_filter_luma_mbaff_intra)(uint8_t *pix, int stride, int alpha, int beta) +{ + FUNCC(h264_loop_filter_luma_intra)(pix, sizeof(pixel), stride, 2, alpha, beta); +} + +static av_always_inline av_flatten void FUNCC(h264_loop_filter_chroma)(uint8_t *p_pix, int xstride, int ystride, int inner_iters, int alpha, int beta, int8_t *tc0) +{ + pixel *pix = (pixel*)p_pix; + int i, d; + alpha <<= BIT_DEPTH - 8; + beta <<= BIT_DEPTH - 8; + xstride >>= sizeof(pixel)-1; + ystride >>= sizeof(pixel)-1; + for( i = 0; i < 4; i++ ) { + const int tc = ((tc0[i] - 1) << (BIT_DEPTH - 8)) + 1; + if( tc <= 0 ) { + pix += inner_iters*ystride; + continue; + } + for( d = 0; d < inner_iters; d++ ) { + const int p0 = pix[-1*xstride]; + const int p1 = pix[-2*xstride]; + const int q0 = pix[0]; + const int q1 = pix[1*xstride]; + + if( FFABS( p0 - q0 ) < alpha && + FFABS( p1 - p0 ) < beta && + FFABS( q1 - q0 ) < beta ) { + + int delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc ); + + pix[-xstride] = av_clip_pixel( p0 + delta ); /* p0' */ + pix[0] = av_clip_pixel( q0 - delta ); /* q0' */ + } + pix += ystride; + } + } +} +static void FUNCC(h264_v_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) +{ + FUNCC(h264_loop_filter_chroma)(pix, stride, sizeof(pixel), 2, alpha, beta, tc0); +} +static void FUNCC(h264_h_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) +{ + FUNCC(h264_loop_filter_chroma)(pix, sizeof(pixel), stride, 2, alpha, beta, tc0); +} +static void FUNCC(h264_h_loop_filter_chroma_mbaff)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) +{ + FUNCC(h264_loop_filter_chroma)(pix, sizeof(pixel), stride, 1, alpha, beta, tc0); +} +static void FUNCC(h264_h_loop_filter_chroma422)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) +{ + FUNCC(h264_loop_filter_chroma)(pix, sizeof(pixel), stride, 4, alpha, beta, tc0); +} +static void FUNCC(h264_h_loop_filter_chroma422_mbaff)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) +{ + FUNCC(h264_loop_filter_chroma)(pix, sizeof(pixel), stride, 2, alpha, beta, tc0); +} + +static av_always_inline av_flatten void FUNCC(h264_loop_filter_chroma_intra)(uint8_t *p_pix, int xstride, int ystride, int inner_iters, int alpha, int beta) +{ + pixel *pix = (pixel*)p_pix; + int d; + xstride >>= sizeof(pixel)-1; + ystride >>= sizeof(pixel)-1; + alpha <<= BIT_DEPTH - 8; + beta <<= BIT_DEPTH - 8; + for( d = 0; d < 4 * inner_iters; d++ ) { + const int p0 = pix[-1*xstride]; + const int p1 = pix[-2*xstride]; + const int q0 = pix[0]; + const int q1 = pix[1*xstride]; + + if( FFABS( p0 - q0 ) < alpha && + FFABS( p1 - p0 ) < beta && + FFABS( q1 - q0 ) < beta ) { + + pix[-xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2; /* p0' */ + pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2; /* q0' */ + } + pix += ystride; + } +} +static void FUNCC(h264_v_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta) +{ + FUNCC(h264_loop_filter_chroma_intra)(pix, stride, sizeof(pixel), 2, alpha, beta); +} +static void FUNCC(h264_h_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta) +{ + FUNCC(h264_loop_filter_chroma_intra)(pix, sizeof(pixel), stride, 2, alpha, beta); +} +static void FUNCC(h264_h_loop_filter_chroma_mbaff_intra)(uint8_t *pix, int stride, int alpha, int beta) +{ + FUNCC(h264_loop_filter_chroma_intra)(pix, sizeof(pixel), stride, 1, alpha, beta); +} +static void FUNCC(h264_h_loop_filter_chroma422_intra)(uint8_t *pix, int stride, int alpha, int beta) +{ + FUNCC(h264_loop_filter_chroma_intra)(pix, sizeof(pixel), stride, 4, alpha, beta); +} +static void FUNCC(h264_h_loop_filter_chroma422_mbaff_intra)(uint8_t *pix, int stride, int alpha, int beta) +{ + FUNCC(h264_loop_filter_chroma_intra)(pix, sizeof(pixel), stride, 2, alpha, beta); +} -- cgit v1.2.3