Revision 563c72da libavcodec/h264dsp.c
| libavcodec/h264dsp.c | ||
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#include "avcodec.h" |
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#include "h264dsp.h" |
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#define op_scale1(x) block[x] = av_clip_uint8( (block[x]*weight + offset) >> log2_denom ) |
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#define op_scale2(x) dst[x] = av_clip_uint8( (src[x]*weights + dst[x]*weightd + offset) >> (log2_denom+1)) |
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#define H264_WEIGHT(W,H) \ |
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static void weight_h264_pixels ## W ## x ## H ## _c(uint8_t *block, int stride, int log2_denom, int weight, int offset){ \
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int y; \ |
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offset <<= log2_denom; \ |
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if(log2_denom) offset += 1<<(log2_denom-1); \ |
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for(y=0; y<H; y++, block += stride){ \
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op_scale1(0); \ |
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op_scale1(1); \ |
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if(W==2) continue; \ |
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op_scale1(2); \ |
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op_scale1(3); \ |
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if(W==4) continue; \ |
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op_scale1(4); \ |
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op_scale1(5); \ |
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op_scale1(6); \ |
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op_scale1(7); \ |
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if(W==8) continue; \ |
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op_scale1(8); \ |
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op_scale1(9); \ |
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op_scale1(10); \ |
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op_scale1(11); \ |
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op_scale1(12); \ |
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op_scale1(13); \ |
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op_scale1(14); \ |
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op_scale1(15); \ |
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} \ |
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} \ |
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static void biweight_h264_pixels ## W ## x ## H ## _c(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offset){ \
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int y; \ |
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offset = ((offset + 1) | 1) << log2_denom; \ |
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for(y=0; y<H; y++, dst += stride, src += stride){ \
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op_scale2(0); \ |
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op_scale2(1); \ |
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if(W==2) continue; \ |
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op_scale2(2); \ |
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op_scale2(3); \ |
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if(W==4) continue; \ |
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op_scale2(4); \ |
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op_scale2(5); \ |
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op_scale2(6); \ |
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op_scale2(7); \ |
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if(W==8) continue; \ |
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op_scale2(8); \ |
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op_scale2(9); \ |
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op_scale2(10); \ |
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op_scale2(11); \ |
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op_scale2(12); \ |
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op_scale2(13); \ |
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op_scale2(14); \ |
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op_scale2(15); \ |
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} \ |
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} |
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H264_WEIGHT(16,16) |
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H264_WEIGHT(16,8) |
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H264_WEIGHT(8,16) |
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H264_WEIGHT(8,8) |
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H264_WEIGHT(8,4) |
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H264_WEIGHT(4,8) |
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H264_WEIGHT(4,4) |
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H264_WEIGHT(4,2) |
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H264_WEIGHT(2,4) |
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H264_WEIGHT(2,2) |
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#undef op_scale1 |
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#undef op_scale2 |
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#undef H264_WEIGHT |
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static av_always_inline av_flatten void h264_loop_filter_luma_c(uint8_t *pix, int xstride, int ystride, int inner_iters, int alpha, int beta, int8_t *tc0) |
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{
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int i, d; |
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for( i = 0; i < 4; i++ ) {
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if( tc0[i] < 0 ) {
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pix += inner_iters*ystride; |
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continue; |
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} |
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for( d = 0; d < inner_iters; d++ ) {
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const int p0 = pix[-1*xstride]; |
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const int p1 = pix[-2*xstride]; |
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const int p2 = pix[-3*xstride]; |
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const int q0 = pix[0]; |
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const int q1 = pix[1*xstride]; |
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const int q2 = pix[2*xstride]; |
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if( FFABS( p0 - q0 ) < alpha && |
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FFABS( p1 - p0 ) < beta && |
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FFABS( q1 - q0 ) < beta ) {
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int tc = tc0[i]; |
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int i_delta; |
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if( FFABS( p2 - p0 ) < beta ) {
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if(tc0[i]) |
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pix[-2*xstride] = p1 + av_clip( (( p2 + ( ( p0 + q0 + 1 ) >> 1 ) ) >> 1) - p1, -tc0[i], tc0[i] ); |
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tc++; |
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} |
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if( FFABS( q2 - q0 ) < beta ) {
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if(tc0[i]) |
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pix[ xstride] = q1 + av_clip( (( q2 + ( ( p0 + q0 + 1 ) >> 1 ) ) >> 1) - q1, -tc0[i], tc0[i] ); |
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tc++; |
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} |
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i_delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc ); |
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pix[-xstride] = av_clip_uint8( p0 + i_delta ); /* p0' */ |
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pix[0] = av_clip_uint8( q0 - i_delta ); /* q0' */ |
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} |
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pix += ystride; |
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} |
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} |
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} |
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static void h264_v_loop_filter_luma_c(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) |
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{
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h264_loop_filter_luma_c(pix, stride, 1, 4, alpha, beta, tc0); |
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} |
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static void h264_h_loop_filter_luma_c(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) |
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{
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h264_loop_filter_luma_c(pix, 1, stride, 4, alpha, beta, tc0); |
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} |
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static void h264_h_loop_filter_luma_mbaff_c(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) |
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{
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h264_loop_filter_luma_c(pix, 1, stride, 2, alpha, beta, tc0); |
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} |
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static av_always_inline av_flatten void h264_loop_filter_luma_intra_c(uint8_t *pix, int xstride, int ystride, int inner_iters, int alpha, int beta) |
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{
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int d; |
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for( d = 0; d < 4 * inner_iters; d++ ) {
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const int p2 = pix[-3*xstride]; |
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const int p1 = pix[-2*xstride]; |
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const int p0 = pix[-1*xstride]; |
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const int q0 = pix[ 0*xstride]; |
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const int q1 = pix[ 1*xstride]; |
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const int q2 = pix[ 2*xstride]; |
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if( FFABS( p0 - q0 ) < alpha && |
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FFABS( p1 - p0 ) < beta && |
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FFABS( q1 - q0 ) < beta ) {
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if(FFABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){
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if( FFABS( p2 - p0 ) < beta) |
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{
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const int p3 = pix[-4*xstride]; |
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/* p0', p1', p2' */ |
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pix[-1*xstride] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3; |
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pix[-2*xstride] = ( p2 + p1 + p0 + q0 + 2 ) >> 2; |
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pix[-3*xstride] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3; |
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} else {
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/* p0' */ |
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pix[-1*xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2; |
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} |
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if( FFABS( q2 - q0 ) < beta) |
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{
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const int q3 = pix[3*xstride]; |
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/* q0', q1', q2' */ |
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pix[0*xstride] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3; |
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pix[1*xstride] = ( p0 + q0 + q1 + q2 + 2 ) >> 2; |
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pix[2*xstride] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3; |
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} else {
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/* q0' */ |
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pix[0*xstride] = ( 2*q1 + q0 + p1 + 2 ) >> 2; |
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} |
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}else{
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/* p0', q0' */ |
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pix[-1*xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2; |
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pix[ 0*xstride] = ( 2*q1 + q0 + p1 + 2 ) >> 2; |
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} |
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} |
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pix += ystride; |
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} |
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} |
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static void h264_v_loop_filter_luma_intra_c(uint8_t *pix, int stride, int alpha, int beta) |
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{
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h264_loop_filter_luma_intra_c(pix, stride, 1, 4, alpha, beta); |
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} |
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static void h264_h_loop_filter_luma_intra_c(uint8_t *pix, int stride, int alpha, int beta) |
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{
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h264_loop_filter_luma_intra_c(pix, 1, stride, 4, alpha, beta); |
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} |
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static void h264_h_loop_filter_luma_mbaff_intra_c(uint8_t *pix, int stride, int alpha, int beta) |
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{
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h264_loop_filter_luma_intra_c(pix, 1, stride, 2, alpha, beta); |
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} |
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static av_always_inline av_flatten void h264_loop_filter_chroma_c(uint8_t *pix, int xstride, int ystride, int inner_iters, int alpha, int beta, int8_t *tc0) |
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{
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int i, d; |
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for( i = 0; i < 4; i++ ) {
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const int tc = tc0[i]; |
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if( tc <= 0 ) {
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pix += inner_iters*ystride; |
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continue; |
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} |
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for( d = 0; d < inner_iters; d++ ) {
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const int p0 = pix[-1*xstride]; |
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const int p1 = pix[-2*xstride]; |
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const int q0 = pix[0]; |
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const int q1 = pix[1*xstride]; |
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if( FFABS( p0 - q0 ) < alpha && |
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FFABS( p1 - p0 ) < beta && |
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FFABS( q1 - q0 ) < beta ) {
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int delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc ); |
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pix[-xstride] = av_clip_uint8( p0 + delta ); /* p0' */ |
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pix[0] = av_clip_uint8( q0 - delta ); /* q0' */ |
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} |
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pix += ystride; |
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} |
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} |
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} |
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static void h264_v_loop_filter_chroma_c(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) |
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{
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h264_loop_filter_chroma_c(pix, stride, 1, 2, alpha, beta, tc0); |
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} |
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static void h264_h_loop_filter_chroma_c(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) |
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{
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h264_loop_filter_chroma_c(pix, 1, stride, 2, alpha, beta, tc0); |
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} |
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static void h264_h_loop_filter_chroma_mbaff_c(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) |
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{
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h264_loop_filter_chroma_c(pix, 1, stride, 1, alpha, beta, tc0); |
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} |
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static av_always_inline av_flatten void h264_loop_filter_chroma_intra_c(uint8_t *pix, int xstride, int ystride, int inner_iters, int alpha, int beta) |
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{
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int d; |
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for( d = 0; d < 4 * inner_iters; d++ ) {
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const int p0 = pix[-1*xstride]; |
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const int p1 = pix[-2*xstride]; |
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const int q0 = pix[0]; |
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const int q1 = pix[1*xstride]; |
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if( FFABS( p0 - q0 ) < alpha && |
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FFABS( p1 - p0 ) < beta && |
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FFABS( q1 - q0 ) < beta ) {
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pix[-xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2; /* p0' */ |
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pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2; /* q0' */ |
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} |
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pix += ystride; |
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} |
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} |
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static void h264_v_loop_filter_chroma_intra_c(uint8_t *pix, int stride, int alpha, int beta) |
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{
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h264_loop_filter_chroma_intra_c(pix, stride, 1, 2, alpha, beta); |
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} |
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static void h264_h_loop_filter_chroma_intra_c(uint8_t *pix, int stride, int alpha, int beta) |
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{
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h264_loop_filter_chroma_intra_c(pix, 1, stride, 2, alpha, beta); |
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} |
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static void h264_h_loop_filter_chroma_mbaff_intra_c(uint8_t *pix, int stride, int alpha, int beta) |
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{
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h264_loop_filter_chroma_intra_c(pix, 1, stride, 1, alpha, beta); |
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} |
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#include "h264dsp_template.c" |
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void ff_h264dsp_init(H264DSPContext *c) |
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{
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