mirror of https://github.com/FFmpeg/FFmpeg.git
Stefano Sabatini
13 years ago
parent
3061664a57
commit
d55252c331
5 changed files with 1 additions and 203 deletions
@ -1,198 +0,0 @@ |
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/*
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* This file is part of MPlayer. |
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* |
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* MPlayer is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* MPlayer is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with MPlayer; if not, write to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include "config.h" |
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#include "mp_msg.h" |
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#include "cpudetect.h" |
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#include "img_format.h" |
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#include "mp_image.h" |
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#include "vf.h" |
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#include "libvo/fastmemcpy.h" |
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struct vf_priv_s { |
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int hi, lo; |
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float frac; |
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int max, last, cnt; |
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}; |
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#if HAVE_MMX && HAVE_EBX_AVAILABLE |
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static int diff_MMX(unsigned char *old, unsigned char *new, int os, int ns) |
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{ |
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volatile short out[4]; |
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__asm__ ( |
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"movl $8, %%ecx \n\t" |
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"pxor %%mm4, %%mm4 \n\t" |
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"pxor %%mm7, %%mm7 \n\t" |
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ASMALIGN(4) |
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"1: \n\t" |
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"movq (%%"REG_S"), %%mm0 \n\t" |
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"movq (%%"REG_S"), %%mm2 \n\t" |
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"add %%"REG_a", %%"REG_S" \n\t" |
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"movq (%%"REG_D"), %%mm1 \n\t" |
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"add %%"REG_b", %%"REG_D" \n\t" |
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"psubusb %%mm1, %%mm2 \n\t" |
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"psubusb %%mm0, %%mm1 \n\t" |
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"movq %%mm2, %%mm0 \n\t" |
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"movq %%mm1, %%mm3 \n\t" |
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"punpcklbw %%mm7, %%mm0 \n\t" |
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"punpcklbw %%mm7, %%mm1 \n\t" |
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"punpckhbw %%mm7, %%mm2 \n\t" |
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"punpckhbw %%mm7, %%mm3 \n\t" |
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"paddw %%mm0, %%mm4 \n\t" |
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"paddw %%mm1, %%mm4 \n\t" |
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"paddw %%mm2, %%mm4 \n\t" |
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"paddw %%mm3, %%mm4 \n\t" |
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"decl %%ecx \n\t" |
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"jnz 1b \n\t" |
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"movq %%mm4, (%%"REG_d") \n\t" |
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"emms \n\t" |
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: |
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: "S" (old), "D" (new), "a" ((long)os), "b" ((long)ns), "d" (out) |
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: "%ecx", "memory" |
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); |
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return out[0]+out[1]+out[2]+out[3]; |
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} |
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#endif |
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static int diff_C(unsigned char *old, unsigned char *new, int os, int ns) |
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{ |
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int x, y, d=0; |
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for (y = 0; y < 8; y++) { |
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for (x = 0; x < 8; x++) { |
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d += abs(new[x] - old[x]); |
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} |
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new += ns; |
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old += os; |
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} |
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return d; |
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} |
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static int (*diff)(unsigned char *, unsigned char *, int, int); |
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static int diff_to_drop_plane(int hi, int lo, float frac, unsigned char *old, unsigned char *new, int w, int h, int os, int ns) |
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{ |
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int x, y; |
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int d, c=0; |
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int t = (w/16)*(h/16)*frac; |
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for (y = 0; y < h-7; y += 4) { |
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for (x = 8; x < w-7; x += 4) { |
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d = diff(old+x+y*os, new+x+y*ns, os, ns); |
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if (d > hi) return 0; |
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if (d > lo) { |
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c++; |
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if (c > t) return 0; |
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} |
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} |
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} |
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return 1; |
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} |
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static int diff_to_drop(int hi, int lo, float frac, mp_image_t *old, mp_image_t *new) |
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{ |
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if (new->flags & MP_IMGFLAG_PLANAR) { |
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return diff_to_drop_plane(hi,lo,frac, old->planes[0], new->planes[0], |
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new->w, new->h, old->stride[0], new->stride[0]) |
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&& diff_to_drop_plane(hi,lo,frac, old->planes[1], new->planes[1], |
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new->chroma_width, new->chroma_height, |
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old->stride[1], new->stride[1]) |
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&& diff_to_drop_plane(hi,lo,frac, old->planes[2], new->planes[2], |
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new->chroma_width, new->chroma_height, |
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old->stride[2], new->stride[2]); |
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} |
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return diff_to_drop_plane(hi,lo,frac, old->planes[0], new->planes[0], |
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new->w*(new->bpp/8), new->h, old->stride[0], new->stride[0]); |
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} |
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static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts) |
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{ |
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mp_image_t *dmpi; |
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dmpi = vf_get_image(vf->next, mpi->imgfmt, |
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MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE | |
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MP_IMGFLAG_PRESERVE | MP_IMGFLAG_READABLE, |
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mpi->width, mpi->height); |
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dmpi->qscale = mpi->qscale; |
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dmpi->qstride = mpi->qstride; |
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dmpi->qscale_type = mpi->qscale_type; |
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if (diff_to_drop(vf->priv->hi, vf->priv->lo, vf->priv->frac, dmpi, mpi)) { |
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if (vf->priv->max == 0) |
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return 0; |
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else if ((vf->priv->max > 0) && (vf->priv->cnt++ < vf->priv->max)) |
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return 0; |
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else if ((vf->priv->max < 0) && (vf->priv->last+1 >= -vf->priv->max)) |
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return vf->priv->last=0; |
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} |
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vf->priv->last++; |
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vf->priv->cnt=0; |
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memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h, |
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dmpi->stride[0], mpi->stride[0]); |
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if (mpi->flags & MP_IMGFLAG_PLANAR) { |
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memcpy_pic(dmpi->planes[1], mpi->planes[1], |
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mpi->chroma_width, mpi->chroma_height, |
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dmpi->stride[1], mpi->stride[1]); |
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memcpy_pic(dmpi->planes[2], mpi->planes[2], |
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mpi->chroma_width, mpi->chroma_height, |
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dmpi->stride[2], mpi->stride[2]); |
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} |
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return vf_next_put_image(vf, dmpi, pts); |
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} |
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static void uninit(struct vf_instance *vf) |
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{ |
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free(vf->priv); |
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} |
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static int vf_open(vf_instance_t *vf, char *args) |
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{ |
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struct vf_priv_s *p; |
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vf->put_image = put_image; |
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vf->uninit = uninit; |
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vf->default_reqs = VFCAP_ACCEPT_STRIDE; |
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vf->priv = p = calloc(1, sizeof(struct vf_priv_s)); |
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p->max = 0; |
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p->hi = 64*12; |
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p->lo = 64*5; |
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p->frac = 0.33; |
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if (args) sscanf(args, "%d:%d:%d:%f", &p->max, &p->hi, &p->lo, &p->frac); |
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diff = diff_C; |
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#if HAVE_MMX && HAVE_EBX_AVAILABLE |
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if(gCpuCaps.hasMMX) diff = diff_MMX; |
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#endif |
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return 1; |
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} |
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const vf_info_t vf_info_decimate = { |
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"near-duplicate frame remover", |
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"decimate", |
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"Rich Felker", |
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"", |
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vf_open, |
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NULL |
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}; |
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