From 88fc4806b98deabd1efae588af6c911ead5ccae6 Mon Sep 17 00:00:00 2001 From: lorenm Date: Tue, 7 Jul 2009 02:01:36 +0000 Subject: new debanding filter git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@29413 b3059339-0415-0410-9bf9-f77b7e298cf2 --- libmpcodecs/vf.c | 2 + libmpcodecs/vf_gradfun.c | 407 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 409 insertions(+) create mode 100644 libmpcodecs/vf_gradfun.c (limited to 'libmpcodecs') diff --git a/libmpcodecs/vf.c b/libmpcodecs/vf.c index 46e41c3716..08d0b130c1 100644 --- a/libmpcodecs/vf.c +++ b/libmpcodecs/vf.c @@ -48,6 +48,7 @@ extern const vf_info_t vf_info_yvu9; extern const vf_info_t vf_info_lavcdeint; extern const vf_info_t vf_info_eq; extern const vf_info_t vf_info_eq2; +extern const vf_info_t vf_info_gradfun; extern const vf_info_t vf_info_halfpack; extern const vf_info_t vf_info_dint; extern const vf_info_t vf_info_1bpp; @@ -138,6 +139,7 @@ static const vf_info_t* const filter_list[]={ &vf_info_yvu9, &vf_info_eq, &vf_info_eq2, + &vf_info_gradfun, &vf_info_halfpack, &vf_info_dint, &vf_info_1bpp, diff --git a/libmpcodecs/vf_gradfun.c b/libmpcodecs/vf_gradfun.c new file mode 100644 index 0000000000..7089af1b57 --- /dev/null +++ b/libmpcodecs/vf_gradfun.c @@ -0,0 +1,407 @@ +/* + * Copyright (C) 2009 Loren Merritt + * + * 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 +#include +#include +#include + +#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> 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> 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" + ); +} + +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" + ); +} + +#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"\ + ); + +#if HAVE_6REGS +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 +#endif // HAVE_SSSE3 + +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; yblur_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> 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; yfilter_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_s* 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_s* 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; pnum_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_s* 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_s* 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_s* vf) +{ + if (!vf->priv) return; + av_free(vf->priv->buf); + free(vf->priv); + vf->priv = NULL; +} + +static int 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_SSSE3 +#if HAVE_6REGS + if (gCpuCaps.hasSSE2) + vf->priv->blur_line = blur_line_sse2; +#endif + if (gCpuCaps.hasMMX2) + vf->priv->filter_line = filter_line_mmx2; + 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", + "", + open, + NULL +}; -- cgit v1.2.3