X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fvp3dsp.c;h=395526e0402bc5b27eb2faef374cd647a92f82a8;hb=01880d287be6e2269b92eee8d9dc442532d277ea;hp=da5b108bdc0bfb72624fee35031d8f4767ecbf68;hpb=9971331dfb6f4ef499b17f156bc0befc98b504b1;p=ffmpeg diff --git a/libavcodec/vp3dsp.c b/libavcodec/vp3dsp.c index da5b108bdc0..395526e0402 100644 --- a/libavcodec/vp3dsp.c +++ b/libavcodec/vp3dsp.c @@ -1,31 +1,33 @@ /* * Copyright (C) 2004 the ffmpeg project * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * Libav 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, + * Libav 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 + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** - * @file vp3dsp.c + * @file * Standard C DSP-oriented functions cribbed from the original VP3 * source code. */ +#include "libavutil/attributes.h" #include "avcodec.h" #include "dsputil.h" +#include "vp3dsp.h" #define IdctAdjustBeforeShift 8 #define xC1S7 64277 @@ -41,7 +43,6 @@ static av_always_inline void idct(uint8_t *dst, int stride, int16_t *input, int type) { int16_t *ip = input; - uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; int A, B, C, D, Ad, Bd, Cd, Dd, E, F, G, H; int Ed, Gd, Add, Bdd, Fd, Hd; @@ -147,29 +148,29 @@ static av_always_inline void idct(uint8_t *dst, int stride, int16_t *input, int ip[5*8] = (Fd + Bdd ) >> 4; ip[6*8] = (Fd - Bdd ) >> 4; }else if(type==1){ - dst[0*stride] = cm[(Gd + Cd ) >> 4]; - dst[7*stride] = cm[(Gd - Cd ) >> 4]; + dst[0*stride] = av_clip_uint8((Gd + Cd ) >> 4); + dst[7*stride] = av_clip_uint8((Gd - Cd ) >> 4); - dst[1*stride] = cm[(Add + Hd ) >> 4]; - dst[2*stride] = cm[(Add - Hd ) >> 4]; + dst[1*stride] = av_clip_uint8((Add + Hd ) >> 4); + dst[2*stride] = av_clip_uint8((Add - Hd ) >> 4); - dst[3*stride] = cm[(Ed + Dd ) >> 4]; - dst[4*stride] = cm[(Ed - Dd ) >> 4]; + dst[3*stride] = av_clip_uint8((Ed + Dd ) >> 4); + dst[4*stride] = av_clip_uint8((Ed - Dd ) >> 4); - dst[5*stride] = cm[(Fd + Bdd ) >> 4]; - dst[6*stride] = cm[(Fd - Bdd ) >> 4]; + dst[5*stride] = av_clip_uint8((Fd + Bdd ) >> 4); + dst[6*stride] = av_clip_uint8((Fd - Bdd ) >> 4); }else{ - dst[0*stride] = cm[dst[0*stride] + ((Gd + Cd ) >> 4)]; - dst[7*stride] = cm[dst[7*stride] + ((Gd - Cd ) >> 4)]; + dst[0*stride] = av_clip_uint8(dst[0*stride] + ((Gd + Cd ) >> 4)); + dst[7*stride] = av_clip_uint8(dst[7*stride] + ((Gd - Cd ) >> 4)); - dst[1*stride] = cm[dst[1*stride] + ((Add + Hd ) >> 4)]; - dst[2*stride] = cm[dst[2*stride] + ((Add - Hd ) >> 4)]; + dst[1*stride] = av_clip_uint8(dst[1*stride] + ((Add + Hd ) >> 4)); + dst[2*stride] = av_clip_uint8(dst[2*stride] + ((Add - Hd ) >> 4)); - dst[3*stride] = cm[dst[3*stride] + ((Ed + Dd ) >> 4)]; - dst[4*stride] = cm[dst[4*stride] + ((Ed - Dd ) >> 4)]; + dst[3*stride] = av_clip_uint8(dst[3*stride] + ((Ed + Dd ) >> 4)); + dst[4*stride] = av_clip_uint8(dst[4*stride] + ((Ed - Dd ) >> 4)); - dst[5*stride] = cm[dst[5*stride] + ((Fd + Bdd ) >> 4)]; - dst[6*stride] = cm[dst[6*stride] + ((Fd - Bdd ) >> 4)]; + dst[5*stride] = av_clip_uint8(dst[5*stride] + ((Fd + Bdd ) >> 4)); + dst[6*stride] = av_clip_uint8(dst[6*stride] + ((Fd - Bdd ) >> 4)); } } else { @@ -190,18 +191,18 @@ static av_always_inline void idct(uint8_t *dst, int stride, int16_t *input, int dst[4*stride]= dst[5*stride]= dst[6*stride]= - dst[7*stride]= cm[128 + ((xC4S4 * ip[0*8] + (IdctAdjustBeforeShift<<16))>>20)]; + dst[7*stride]= av_clip_uint8(128 + ((xC4S4 * ip[0*8] + (IdctAdjustBeforeShift<<16))>>20)); }else{ if(ip[0*8]){ int v= ((xC4S4 * ip[0*8] + (IdctAdjustBeforeShift<<16))>>20); - dst[0*stride] = cm[dst[0*stride] + v]; - dst[1*stride] = cm[dst[1*stride] + v]; - dst[2*stride] = cm[dst[2*stride] + v]; - dst[3*stride] = cm[dst[3*stride] + v]; - dst[4*stride] = cm[dst[4*stride] + v]; - dst[5*stride] = cm[dst[5*stride] + v]; - dst[6*stride] = cm[dst[6*stride] + v]; - dst[7*stride] = cm[dst[7*stride] + v]; + dst[0*stride] = av_clip_uint8(dst[0*stride] + v); + dst[1*stride] = av_clip_uint8(dst[1*stride] + v); + dst[2*stride] = av_clip_uint8(dst[2*stride] + v); + dst[3*stride] = av_clip_uint8(dst[3*stride] + v); + dst[4*stride] = av_clip_uint8(dst[4*stride] + v); + dst[5*stride] = av_clip_uint8(dst[5*stride] + v); + dst[6*stride] = av_clip_uint8(dst[6*stride] + v); + dst[7*stride] = av_clip_uint8(dst[7*stride] + v); } } } @@ -211,19 +212,33 @@ static av_always_inline void idct(uint8_t *dst, int stride, int16_t *input, int } } -void ff_vp3_idct_c(DCTELEM *block/* align 16*/){ - idct(NULL, 0, block, 0); -} - -void ff_vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/){ +static void vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/){ idct(dest, line_size, block, 1); } -void ff_vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/){ +static void vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/){ idct(dest, line_size, block, 2); } -void ff_vp3_v_loop_filter_c(uint8_t *first_pixel, int stride, int *bounding_values) +static void vp3_idct_dc_add_c(uint8_t *dest/*align 8*/, int line_size, + const DCTELEM *block/*align 16*/){ + int i, dc = (block[0] + 15) >> 5; + + for(i = 0; i < 8; i++){ + dest[0] = av_clip_uint8(dest[0] + dc); + dest[1] = av_clip_uint8(dest[1] + dc); + dest[2] = av_clip_uint8(dest[2] + dc); + dest[3] = av_clip_uint8(dest[3] + dc); + dest[4] = av_clip_uint8(dest[4] + dc); + dest[5] = av_clip_uint8(dest[5] + dc); + dest[6] = av_clip_uint8(dest[6] + dc); + dest[7] = av_clip_uint8(dest[7] + dc); + dest += line_size; + } +} + +static void vp3_v_loop_filter_c(uint8_t *first_pixel, int stride, + int *bounding_values) { unsigned char *end; int filter_value; @@ -239,7 +254,8 @@ void ff_vp3_v_loop_filter_c(uint8_t *first_pixel, int stride, int *bounding_valu } } -void ff_vp3_h_loop_filter_c(uint8_t *first_pixel, int stride, int *bounding_values) +static void vp3_h_loop_filter_c(uint8_t *first_pixel, int stride, + int *bounding_values) { unsigned char *end; int filter_value; @@ -253,3 +269,21 @@ void ff_vp3_h_loop_filter_c(uint8_t *first_pixel, int stride, int *bounding_valu first_pixel[ 0] = av_clip_uint8(first_pixel[ 0] - filter_value); } } + +av_cold void ff_vp3dsp_init(VP3DSPContext *c, int flags) +{ + c->idct_put = vp3_idct_put_c; + c->idct_add = vp3_idct_add_c; + c->idct_dc_add = vp3_idct_dc_add_c; + c->v_loop_filter = vp3_v_loop_filter_c; + c->h_loop_filter = vp3_h_loop_filter_c; + + c->idct_perm = FF_NO_IDCT_PERM; + + if (ARCH_ARM) + ff_vp3dsp_init_arm(c, flags); + if (ARCH_PPC) + ff_vp3dsp_init_ppc(c, flags); + if (ARCH_X86) + ff_vp3dsp_init_x86(c, flags); +}