diff options
author | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2011-08-05 02:16:04 +0400 |
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committer | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2011-08-07 19:43:02 +0400 |
commit | 640a905ece0fecc83f05dfaca7e91a0ecc65d746 (patch) | |
tree | 20df53b7d7c990d3d4f3107fedd82a037f310644 /libavfilter/libmpcodecs | |
parent | 6c4e9cae5223c88ad98cd184d4a7e6a019bdd586 (diff) |
lavfi: remove gradfun mp wrapper
The gradfun filter was already integrated natively in libavfilter.
Both filters issue the same output, and have a comparable performance.
See thread:
Subject: [FFmpeg-devel] [PATCH] lavfi: remove gradfun mp wrapper
Date: Fri, 5 Aug 2011 00:19:04 +0200
Diffstat (limited to 'libavfilter/libmpcodecs')
-rw-r--r-- | libavfilter/libmpcodecs/vf_gradfun.c | 411 |
1 files changed, 0 insertions, 411 deletions
diff --git a/libavfilter/libmpcodecs/vf_gradfun.c b/libavfilter/libmpcodecs/vf_gradfun.c deleted file mode 100644 index fd4236cc37..0000000000 --- a/libavfilter/libmpcodecs/vf_gradfun.c +++ /dev/null @@ -1,411 +0,0 @@ -/* - * Copyright (C) 2009 Loren Merritt <lorenm@u.washignton.edu> - * - * This file is part of MPlayer. - * - * MPlayer is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * MPlayer 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with MPlayer; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -/* - * Debanding algorithm (from gradfun2db by prunedtree): - * Boxblur. - * Foreach pixel, if it's within threshold of the blurred value, make it closer. - * So now we have a smoothed and higher bitdepth version of all the shallow - * gradients, while leaving detailed areas untouched. - * Dither it back to 8bit. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <inttypes.h> - -#include "config.h" -#include "cpudetect.h" -#include "img_format.h" -#include "mp_image.h" -#include "vf.h" -#include "libvo/fastmemcpy.h" -#include "libavutil/avutil.h" -#include "libavutil/x86_cpu.h" - -struct vf_priv_s { - int thresh; - int radius; - uint16_t *buf; - void (*filter_line)(uint8_t *dst, uint8_t *src, uint16_t *dc, - int width, int thresh, const uint16_t *dithers); - void (*blur_line)(uint16_t *dc, uint16_t *buf, uint16_t *buf1, - uint8_t *src, int sstride, int width); -}; - -static const uint16_t __attribute__((aligned(16))) pw_7f[8] = {127,127,127,127,127,127,127,127}; -static const uint16_t __attribute__((aligned(16))) pw_ff[8] = {255,255,255,255,255,255,255,255}; -static const uint16_t __attribute__((aligned(16))) dither[8][8] = { - { 0, 96, 24,120, 6,102, 30,126 }, - { 64, 32, 88, 56, 70, 38, 94, 62 }, - { 16,112, 8,104, 22,118, 14,110 }, - { 80, 48, 72, 40, 86, 54, 78, 46 }, - { 4,100, 28,124, 2, 98, 26,122 }, - { 68, 36, 92, 60, 66, 34, 90, 58 }, - { 20,116, 12,108, 18,114, 10,106 }, - { 84, 52, 76, 44, 82, 50, 74, 42 }, -}; - -static void filter_line_c(uint8_t *dst, uint8_t *src, uint16_t *dc, - int width, int thresh, const uint16_t *dithers) -{ - int x; - for (x=0; x<width; x++, dc+=x&1) { - int pix = src[x]<<7; - int delta = dc[0] - pix; - int m = abs(delta) * thresh >> 16; - m = FFMAX(0, 127-m); - m = m*m*delta >> 14; - pix += m + dithers[x&7]; - dst[x] = av_clip_uint8(pix>>7); - } -} - -static void blur_line_c(uint16_t *dc, uint16_t *buf, uint16_t *buf1, - uint8_t *src, int sstride, int width) -{ - int x, v, old; - for (x=0; x<width; x++) { - v = buf1[x] + src[2*x] + src[2*x+1] + src[2*x+sstride] + src[2*x+1+sstride]; - old = buf[x]; - buf[x] = v; - dc[x] = v - old; - } -} - -#if HAVE_MMX2 -static void filter_line_mmx2(uint8_t *dst, uint8_t *src, uint16_t *dc, - int width, int thresh, const uint16_t *dithers) -{ - intptr_t x; - if (width&3) { - x = width&~3; - filter_line_c(dst+x, src+x, dc+x/2, width-x, thresh, dithers); - width = x; - } - x = -width; - __asm__ volatile( - "movd %4, %%mm5 \n" - "pxor %%mm7, %%mm7 \n" - "pshufw $0, %%mm5, %%mm5 \n" - "movq %6, %%mm6 \n" - "movq %5, %%mm4 \n" - "1: \n" - "movd (%2,%0), %%mm0 \n" - "movd (%3,%0), %%mm1 \n" - "punpcklbw %%mm7, %%mm0 \n" - "punpcklwd %%mm1, %%mm1 \n" - "psllw $7, %%mm0 \n" - "pxor %%mm2, %%mm2 \n" - "psubw %%mm0, %%mm1 \n" // delta = dc - pix - "psubw %%mm1, %%mm2 \n" - "pmaxsw %%mm1, %%mm2 \n" - "pmulhuw %%mm5, %%mm2 \n" // m = abs(delta) * thresh >> 16 - "psubw %%mm6, %%mm2 \n" - "pminsw %%mm7, %%mm2 \n" // m = -max(0, 127-m) - "pmullw %%mm2, %%mm2 \n" - "paddw %%mm4, %%mm0 \n" // pix += dither - "pmulhw %%mm2, %%mm1 \n" - "psllw $2, %%mm1 \n" // m = m*m*delta >> 14 - "paddw %%mm1, %%mm0 \n" // pix += m - "psraw $7, %%mm0 \n" - "packuswb %%mm0, %%mm0 \n" - "movd %%mm0, (%1,%0) \n" // dst = clip(pix>>7) - "add $4, %0 \n" - "jl 1b \n" - "emms \n" - :"+r"(x) - :"r"(dst+width), "r"(src+width), "r"(dc+width/2), - "rm"(thresh), "m"(*dithers), "m"(*pw_7f) - :"memory" - ); -} -#endif - -#if HAVE_SSSE3 -static void filter_line_ssse3(uint8_t *dst, uint8_t *src, uint16_t *dc, - int width, int thresh, const uint16_t *dithers) -{ - intptr_t x; - if (width&7) { - // could be 10% faster if I somehow eliminated this - x = width&~7; - filter_line_c(dst+x, src+x, dc+x/2, width-x, thresh, dithers); - width = x; - } - x = -width; - __asm__ volatile( - "movd %4, %%xmm5 \n" - "pxor %%xmm7, %%xmm7 \n" - "pshuflw $0,%%xmm5, %%xmm5 \n" - "movdqa %6, %%xmm6 \n" - "punpcklqdq %%xmm5, %%xmm5 \n" - "movdqa %5, %%xmm4 \n" - "1: \n" - "movq (%2,%0), %%xmm0 \n" - "movq (%3,%0), %%xmm1 \n" - "punpcklbw %%xmm7, %%xmm0 \n" - "punpcklwd %%xmm1, %%xmm1 \n" - "psllw $7, %%xmm0 \n" - "psubw %%xmm0, %%xmm1 \n" // delta = dc - pix - "pabsw %%xmm1, %%xmm2 \n" - "pmulhuw %%xmm5, %%xmm2 \n" // m = abs(delta) * thresh >> 16 - "psubw %%xmm6, %%xmm2 \n" - "pminsw %%xmm7, %%xmm2 \n" // m = -max(0, 127-m) - "pmullw %%xmm2, %%xmm2 \n" - "psllw $1, %%xmm2 \n" - "paddw %%xmm4, %%xmm0 \n" // pix += dither - "pmulhrsw %%xmm2, %%xmm1 \n" // m = m*m*delta >> 14 - "paddw %%xmm1, %%xmm0 \n" // pix += m - "psraw $7, %%xmm0 \n" - "packuswb %%xmm0, %%xmm0 \n" - "movq %%xmm0, (%1,%0) \n" // dst = clip(pix>>7) - "add $8, %0 \n" - "jl 1b \n" - :"+&r"(x) - :"r"(dst+width), "r"(src+width), "r"(dc+width/2), - "rm"(thresh), "m"(*dithers), "m"(*pw_7f) - :"memory" - ); -} -#endif // HAVE_SSSE3 - -#if HAVE_SSE && HAVE_6REGS -#define BLURV(load)\ - intptr_t x = -2*width;\ - __asm__ volatile(\ - "movdqa %6, %%xmm7 \n"\ - "1: \n"\ - load" (%4,%0), %%xmm0 \n"\ - load" (%5,%0), %%xmm1 \n"\ - "movdqa %%xmm0, %%xmm2 \n"\ - "movdqa %%xmm1, %%xmm3 \n"\ - "psrlw $8, %%xmm0 \n"\ - "psrlw $8, %%xmm1 \n"\ - "pand %%xmm7, %%xmm2 \n"\ - "pand %%xmm7, %%xmm3 \n"\ - "paddw %%xmm1, %%xmm0 \n"\ - "paddw %%xmm3, %%xmm2 \n"\ - "paddw %%xmm2, %%xmm0 \n"\ - "paddw (%2,%0), %%xmm0 \n"\ - "movdqa (%1,%0), %%xmm1 \n"\ - "movdqa %%xmm0, (%1,%0) \n"\ - "psubw %%xmm1, %%xmm0 \n"\ - "movdqa %%xmm0, (%3,%0) \n"\ - "add $16, %0 \n"\ - "jl 1b \n"\ - :"+&r"(x)\ - :"r"(buf+width),\ - "r"(buf1+width),\ - "r"(dc+width),\ - "r"(src+width*2),\ - "r"(src+width*2+sstride),\ - "m"(*pw_ff)\ - :"memory"\ - ); - -static void blur_line_sse2(uint16_t *dc, uint16_t *buf, uint16_t *buf1, - uint8_t *src, int sstride, int width) -{ - if (((intptr_t)src|sstride)&15) { - BLURV("movdqu"); - } else { - BLURV("movdqa"); - } -} -#endif // HAVE_6REGS && HAVE_SSE - -static void filter(struct vf_priv_s *ctx, uint8_t *dst, uint8_t *src, - int width, int height, int dstride, int sstride, int r) -{ - int bstride = ((width+15)&~15)/2; - int y; - uint32_t dc_factor = (1<<21)/(r*r); - uint16_t *dc = ctx->buf+16; - uint16_t *buf = ctx->buf+bstride+32; - int thresh = ctx->thresh; - - memset(dc, 0, (bstride+16)*sizeof(*buf)); - for (y=0; y<r; y++) - ctx->blur_line(dc, buf+y*bstride, buf+(y-1)*bstride, src+2*y*sstride, sstride, width/2); - for (;;) { - if (y < height-r) { - int mod = ((y+r)/2)%r; - uint16_t *buf0 = buf+mod*bstride; - uint16_t *buf1 = buf+(mod?mod-1:r-1)*bstride; - int x, v; - ctx->blur_line(dc, buf0, buf1, src+(y+r)*sstride, sstride, width/2); - for (x=v=0; x<r; x++) - v += dc[x]; - for (; x<width/2; x++) { - v += dc[x] - dc[x-r]; - dc[x-r] = v * dc_factor >> 16; - } - for (; x<(width+r+1)/2; x++) - dc[x-r] = v * dc_factor >> 16; - for (x=-r/2; x<0; x++) - dc[x] = dc[0]; - } - if (y == r) { - for (y=0; y<r; y++) - ctx->filter_line(dst+y*dstride, src+y*sstride, dc-r/2, width, thresh, dither[y&7]); - } - ctx->filter_line(dst+y*dstride, src+y*sstride, dc-r/2, width, thresh, dither[y&7]); - if (++y >= height) break; - ctx->filter_line(dst+y*dstride, src+y*sstride, dc-r/2, width, thresh, dither[y&7]); - if (++y >= height) break; - } -} - -static void get_image(struct vf_instance *vf, mp_image_t *mpi) -{ - if (mpi->flags&MP_IMGFLAG_PRESERVE) return; // don't change - // ok, we can do pp in-place: - vf->dmpi = vf_get_image(vf->next, mpi->imgfmt, - mpi->type, mpi->flags, mpi->width, mpi->height); - mpi->planes[0] = vf->dmpi->planes[0]; - mpi->stride[0] = vf->dmpi->stride[0]; - mpi->width = vf->dmpi->width; - if (mpi->flags&MP_IMGFLAG_PLANAR){ - mpi->planes[1] = vf->dmpi->planes[1]; - mpi->planes[2] = vf->dmpi->planes[2]; - mpi->stride[1] = vf->dmpi->stride[1]; - mpi->stride[2] = vf->dmpi->stride[2]; - } - mpi->flags |= MP_IMGFLAG_DIRECT; -} - -static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts) -{ - mp_image_t *dmpi = vf->dmpi; - int p; - - if (!(mpi->flags&MP_IMGFLAG_DIRECT)) { - // no DR, so get a new image. hope we'll get DR buffer: - dmpi = vf_get_image(vf->next,mpi->imgfmt, MP_IMGTYPE_TEMP, - MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_PREFER_ALIGNED_STRIDE, - mpi->w, mpi->h); - } - vf_clone_mpi_attributes(dmpi, mpi); - - for (p=0; p<mpi->num_planes; p++) { - int w = mpi->w; - int h = mpi->h; - int r = vf->priv->radius; - if (p) { - w >>= mpi->chroma_x_shift; - h >>= mpi->chroma_y_shift; - r = ((r>>mpi->chroma_x_shift) + (r>>mpi->chroma_y_shift)) / 2; - r = av_clip((r+1)&~1,4,32); - } - if (FFMIN(w,h) > 2*r) - filter(vf->priv, dmpi->planes[p], mpi->planes[p], w, h, - dmpi->stride[p], mpi->stride[p], r); - else if (dmpi->planes[p] != mpi->planes[p]) - memcpy_pic(dmpi->planes[p], mpi->planes[p], w, h, - dmpi->stride[p], mpi->stride[p]); - } - - return vf_next_put_image(vf, dmpi, pts); -} - -static int query_format(struct vf_instance *vf, unsigned int fmt) -{ - switch (fmt){ - case IMGFMT_YVU9: - case IMGFMT_IF09: - case IMGFMT_YV12: - case IMGFMT_I420: - case IMGFMT_IYUV: - case IMGFMT_CLPL: - case IMGFMT_Y800: - case IMGFMT_Y8: - case IMGFMT_NV12: - case IMGFMT_NV21: - case IMGFMT_444P: - case IMGFMT_422P: - case IMGFMT_411P: - case IMGFMT_HM12: - return vf_next_query_format(vf,fmt); - } - return 0; -} - -static int config(struct vf_instance *vf, - int width, int height, int d_width, int d_height, - unsigned int flags, unsigned int outfmt) -{ - free(vf->priv->buf); - vf->priv->buf = av_mallocz((((width+15)&~15)*(vf->priv->radius+1)/2+32)*sizeof(uint16_t)); - return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt); -} - -static void uninit(struct vf_instance *vf) -{ - if (!vf->priv) return; - av_free(vf->priv->buf); - free(vf->priv); - vf->priv = NULL; -} - -static int vf_open(vf_instance_t *vf, char *args) -{ - float thresh = 1.2; - int radius = 16; - - vf->get_image=get_image; - vf->put_image=put_image; - vf->query_format=query_format; - vf->config=config; - vf->uninit=uninit; - vf->priv=malloc(sizeof(struct vf_priv_s)); - memset(vf->priv, 0, sizeof(struct vf_priv_s)); - - if (args) sscanf(args, "%f:%d", &thresh, &radius); - vf->priv->thresh = (1<<15)/av_clipf(thresh,0.51,255); - vf->priv->radius = av_clip((radius+1)&~1,4,32); - - vf->priv->blur_line = blur_line_c; - vf->priv->filter_line = filter_line_c; -#if HAVE_SSE && HAVE_6REGS - if (gCpuCaps.hasSSE2) - vf->priv->blur_line = blur_line_sse2; -#endif -#if HAVE_MMX2 - if (gCpuCaps.hasMMX2) - vf->priv->filter_line = filter_line_mmx2; -#endif -#if HAVE_SSSE3 - if (gCpuCaps.hasSSSE3) - vf->priv->filter_line = filter_line_ssse3; -#endif - - return 1; -} - -const vf_info_t vf_info_gradfun = { - "gradient deband", - "gradfun", - "Loren Merritt", - "", - vf_open, - NULL -}; |