FFmpeg: libavfilter/libmpcodecs/vf

00001 /*
00002  * Copyright (C) 2005 Michael Niedermayer <michaelni@gmx.at>
00003  *
00004  * This file is part of MPlayer.
00005  *
00006  * MPlayer is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU General Public License as published by
00008  * the Free Software Foundation; either version 2 of the License, or
00009  * (at your option) any later version.
00010  *
00011  * MPlayer is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  * GNU General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU General Public License along
00017  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
00018  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
00019  */
00020 
00021 #include <stdio.h>
00022 #include <stdlib.h>
00023 #include <string.h>
00024 #include <inttypes.h>
00025 #include <math.h>
00026 #include <assert.h>
00027 
00028 #include "config.h"
00029 
00030 #include "mp_msg.h"
00031 #include "cpudetect.h"
00032 
00033 #include "libavcodec/avcodec.h"
00034 
00035 #include "img_format.h"
00036 #include "mp_image.h"
00037 #include "vf.h"
00038 #include "vd_ffmpeg.h"
00039 #include "libvo/fastmemcpy.h"
00040 
00041 #define XMIN(a,b) ((a) < (b) ? (a) : (b))
00042 
00043 #define BLOCK 16
00044 
00045 //===========================================================================//
00046 static const uint8_t  __attribute__((aligned(8))) dither[8][8]={
00047 {  0*4,  48*4,  12*4,  60*4,   3*4,  51*4,  15*4,  63*4, },
00048 { 32*4,  16*4,  44*4,  28*4,  35*4,  19*4,  47*4,  31*4, },
00049 {  8*4,  56*4,   4*4,  52*4,  11*4,  59*4,   7*4,  55*4, },
00050 { 40*4,  24*4,  36*4,  20*4,  43*4,  27*4,  39*4,  23*4, },
00051 {  2*4,  50*4,  14*4,  62*4,   1*4,  49*4,  13*4,  61*4, },
00052 { 34*4,  18*4,  46*4,  30*4,  33*4,  17*4,  45*4,  29*4, },
00053 { 10*4,  58*4,   6*4,  54*4,   9*4,  57*4,   5*4,  53*4, },
00054 { 42*4,  26*4,  38*4,  22*4,  41*4,  25*4,  37*4,  21*4, },
00055 };
00056 
00057 static const uint8_t offset[511][2]= {
00058 { 0, 0},
00059 { 0, 0}, { 8, 8},
00060 { 0, 0}, { 4, 4}, {12, 8}, { 8,12},
00061 { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14},
00062 
00063 { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14},
00064 { 5, 1}, {15, 3}, { 9, 5}, { 3, 7}, {13, 9}, { 7,11}, { 1,13}, {11,15},
00065 
00066 { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
00067 { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
00068 { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 1, 5}, { 9, 5}, { 1,13}, { 9,13},
00069 { 6, 6}, {14, 6}, { 6,14}, {14,14}, { 3, 7}, {11, 7}, { 3,15}, {11,15},
00070 
00071 { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
00072 { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
00073 { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
00074 { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
00075 { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
00076 { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
00077 { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
00078 { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 7}, {14, 7}, { 6,15}, {14,15},
00079 
00080 { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 0, 2}, { 8, 2}, { 0,10}, { 8,10},
00081 { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 0, 6}, { 8, 6}, { 0,14}, { 8,14},
00082 { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 1, 3}, { 9, 3}, { 1,11}, { 9,11},
00083 { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 1, 7}, { 9, 7}, { 1,15}, { 9,15},
00084 { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 2, 2}, {10, 2}, { 2,10}, {10,10},
00085 { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 2, 6}, {10, 6}, { 2,14}, {10,14},
00086 { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 3, 3}, {11, 3}, { 3,11}, {11,11},
00087 { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 3, 7}, {11, 7}, { 3,15}, {11,15},
00088 { 4, 0}, {12, 0}, { 4, 8}, {12, 8}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
00089 { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
00090 { 5, 1}, {13, 1}, { 5, 9}, {13, 9}, { 5, 3}, {13, 3}, { 5,11}, {13,11},
00091 { 5, 5}, {13, 5}, { 5,13}, {13,13}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
00092 { 6, 0}, {14, 0}, { 6, 8}, {14, 8}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
00093 { 6, 4}, {14, 4}, { 6,12}, {14,12}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
00094 { 7, 1}, {15, 1}, { 7, 9}, {15, 9}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
00095 { 7, 5}, {15, 5}, { 7,13}, {15,13}, { 7, 7}, {15, 7}, { 7,15}, {15,15},
00096 
00097 { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8}, { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 6, 6}, {14, 6}, { 6,14}, {14,14}, { 2, 6}, {10, 6}, { 2,14}, {10,14}, { 6, 2}, {14, 2}, { 6,10}, {14,10}, { 0, 2}, { 8, 2}, { 0,10}, { 8,10}, { 4, 6}, {12, 6}, { 4,14}, {12,14}, { 0, 6}, { 8, 6}, { 0,14}, { 8,14}, { 4, 2}, {12, 2}, { 4,10}, {12,10}, { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 6, 4}, {14, 4}, { 6,12}, {14,12}, { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 6, 0}, {14, 0}, { 6, 8}, {14, 8}, { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 5}, {13, 5}, { 5,13}, {13,13}, { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9}, { 3, 3}, {11, 3}, { 3,11}, {11,11}, { 7, 7}, {15, 7}, { 7,15}, {15,15}, { 3, 7}, {11, 7}, { 3,15}, {11,15}, { 7, 3}, {15, 3}, { 7,11}, {15,11}, { 1, 3}, { 9, 3}, { 1,11}, { 9,11}, { 5, 7}, {13, 7}, { 5,15}, {13,15}, { 1, 7}, { 9, 7}, { 1,15}, { 9,15}, { 5, 3}, {13, 3}, { 5,11}, {13,11}, { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 7, 5}, {15, 5}, { 7,13}, {15,13}, { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 7, 1}, {15, 1}, { 7, 9}, {15, 9}, { 0, 1}, { 8, 1}, { 0, 9}, { 8, 9}, { 4, 5}, {12, 5}, { 4,13}, {12,13}, { 0, 5}, { 8, 5}, { 0,13}, { 8,13}, { 4, 1}, {12, 1}, { 4, 9}, {12, 9}, { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 7}, {14, 7}, { 6,15}, {14,15}, { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 3}, {14, 3}, { 6,11}, {14,11}, { 0, 3}, { 8, 3}, { 0,11}, { 8,11}, { 4, 7}, {12, 7}, { 4,15}, {12,15}, { 0, 7}, { 8, 7}, { 0,15}, { 8,15}, { 4, 3}, {12, 3}, { 4,11}, {12,11}, { 2, 1}, {10, 1}, { 2, 9}, {10, 9}, { 6, 5}, {14, 5}, { 6,13}, {14,13}, { 2, 5}, {10, 5}, { 2,13}, {10,13}, { 6, 1}, {14, 1}, { 6, 9}, {14, 9}, { 1, 0}, { 9, 0}, { 1, 8}, { 9, 8}, { 5, 4}, {13, 4}, { 5,12}, {13,12}, { 1, 4}, { 9, 4}, { 1,12}, { 9,12}, { 5, 0}, {13, 0}, { 5, 8}, {13, 8}, { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 6}, {15, 6}, { 7,14}, {15,14}, { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 2}, {15, 2}, { 7,10}, {15,10}, { 1, 2}, { 9, 2}, { 1,10}, { 9,10}, { 5, 6}, {13, 6}, { 5,14}, {13,14}, { 1, 6}, { 9, 6}, { 1,14}, { 9,14}, { 5, 2}, {13, 2}, { 5,10}, {13,10}, { 3, 0}, {11, 0}, { 3, 8}, {11, 8}, { 7, 4}, {15, 4}, { 7,12}, {15,12}, { 3, 4}, {11, 4}, { 3,12}, {11,12}, { 7, 0}, {15, 0}, { 7, 8}, {15, 8},
00098 };
00099 
00100 struct vf_priv_s {
00101     int log2_count;
00102     int qp;
00103     int mode;
00104     int mpeg2;
00105     int temp_stride[3];
00106     uint8_t *src[3];
00107     int16_t *temp[3];
00108     int outbuf_size;
00109     uint8_t *outbuf;
00110     AVCodecContext *avctx_enc[BLOCK*BLOCK];
00111     AVFrame *frame;
00112     AVFrame *frame_dec;
00113 };
00114 
00115 static void store_slice_c(uint8_t *dst, int16_t *src, int dst_stride, int src_stride, int width, int height, int log2_scale){
00116         int y, x;
00117 
00118 #define STORE(pos) \
00119         temp= ((src[x + y*src_stride + pos]<<log2_scale) + d[pos])>>8;\
00120         if(temp & 0x100) temp= ~(temp>>31);\
00121         dst[x + y*dst_stride + pos]= temp;
00122 
00123         for(y=0; y<height; y++){
00124                 const uint8_t *d= dither[y&7];
00125                 for(x=0; x<width; x+=8){
00126                         int temp;
00127                         STORE(0);
00128                         STORE(1);
00129                         STORE(2);
00130                         STORE(3);
00131                         STORE(4);
00132                         STORE(5);
00133                         STORE(6);
00134                         STORE(7);
00135                 }
00136         }
00137 }
00138 
00139 static void filter(struct vf_priv_s *p, uint8_t *dst[3], uint8_t *src[3], int dst_stride[3], int src_stride[3], int width, int height, uint8_t *qp_store, int qp_stride){
00140     int x, y, i, j;
00141     const int count= 1<<p->log2_count;
00142 
00143     for(i=0; i<3; i++){
00144         int is_chroma= !!i;
00145         int w= width >>is_chroma;
00146         int h= height>>is_chroma;
00147         int stride= p->temp_stride[i];
00148         int block= BLOCK>>is_chroma;
00149 
00150         if (!src[i] || !dst[i])
00151             continue; // HACK avoid crash for Y8 colourspace
00152         for(y=0; y<h; y++){
00153             int index= block + block*stride + y*stride;
00154             fast_memcpy(p->src[i] + index, src[i] + y*src_stride[i], w);
00155             for(x=0; x<block; x++){
00156                 p->src[i][index     - x - 1]= p->src[i][index +     x    ];
00157                 p->src[i][index + w + x    ]= p->src[i][index + w - x - 1];
00158             }
00159         }
00160         for(y=0; y<block; y++){
00161             fast_memcpy(p->src[i] + (  block-1-y)*stride, p->src[i] + (  y+block  )*stride, stride);
00162             fast_memcpy(p->src[i] + (h+block  +y)*stride, p->src[i] + (h-y+block-1)*stride, stride);
00163         }
00164 
00165         p->frame->linesize[i]= stride;
00166         memset(p->temp[i], 0, (h+2*block)*stride*sizeof(int16_t));
00167     }
00168 
00169     if(p->qp)
00170         p->frame->quality= p->qp * FF_QP2LAMBDA;
00171     else
00172         p->frame->quality= norm_qscale(qp_store[0], p->mpeg2) * FF_QP2LAMBDA;
00173 //    init per MB qscale stuff FIXME
00174 
00175     for(i=0; i<count; i++){
00176         const int x1= offset[i+count-1][0];
00177         const int y1= offset[i+count-1][1];
00178         int offset, out_size;
00179         p->frame->data[0]= p->src[0] + x1 + y1 * p->frame->linesize[0];
00180         p->frame->data[1]= p->src[1] + x1/2 + y1/2 * p->frame->linesize[1];
00181         p->frame->data[2]= p->src[2] + x1/2 + y1/2 * p->frame->linesize[2];
00182 
00183         out_size = avcodec_encode_video(p->avctx_enc[i], p->outbuf, p->outbuf_size, p->frame);
00184         p->frame_dec = p->avctx_enc[i]->coded_frame;
00185 
00186         offset= (BLOCK-x1) + (BLOCK-y1)*p->frame_dec->linesize[0];
00187         //FIXME optimize
00188         for(y=0; y<height; y++){
00189             for(x=0; x<width; x++){
00190                 p->temp[0][ x + y*p->temp_stride[0] ] += p->frame_dec->data[0][ x + y*p->frame_dec->linesize[0] + offset ];
00191             }
00192         }
00193         offset= (BLOCK/2-x1/2) + (BLOCK/2-y1/2)*p->frame_dec->linesize[1];
00194         for(y=0; y<height/2; y++){
00195             for(x=0; x<width/2; x++){
00196                 p->temp[1][ x + y*p->temp_stride[1] ] += p->frame_dec->data[1][ x + y*p->frame_dec->linesize[1] + offset ];
00197                 p->temp[2][ x + y*p->temp_stride[2] ] += p->frame_dec->data[2][ x + y*p->frame_dec->linesize[2] + offset ];
00198             }
00199         }
00200     }
00201 
00202     for(j=0; j<3; j++){
00203         int is_chroma= !!j;
00204         store_slice_c(dst[j], p->temp[j], dst_stride[j], p->temp_stride[j], width>>is_chroma, height>>is_chroma, 8-p->log2_count);
00205     }
00206 }
00207 
00208 static int config(struct vf_instance *vf,
00209         int width, int height, int d_width, int d_height,
00210         unsigned int flags, unsigned int outfmt){
00211         int i;
00212         AVCodec *enc= avcodec_find_encoder(CODEC_ID_SNOW);
00213 
00214         for(i=0; i<3; i++){
00215             int is_chroma= !!i;
00216             int w= ((width  + 4*BLOCK-1) & (~(2*BLOCK-1)))>>is_chroma;
00217             int h= ((height + 4*BLOCK-1) & (~(2*BLOCK-1)))>>is_chroma;
00218 
00219             vf->priv->temp_stride[i]= w;
00220             vf->priv->temp[i]= malloc(vf->priv->temp_stride[i]*h*sizeof(int16_t));
00221             vf->priv->src [i]= malloc(vf->priv->temp_stride[i]*h*sizeof(uint8_t));
00222         }
00223         for(i=0; i< (1<<vf->priv->log2_count); i++){
00224             AVCodecContext *avctx_enc;
00225 
00226             avctx_enc=
00227             vf->priv->avctx_enc[i]= avcodec_alloc_context();
00228             avctx_enc->width = width + BLOCK;
00229             avctx_enc->height = height + BLOCK;
00230             avctx_enc->time_base= (AVRational){1,25};  // meaningless
00231             avctx_enc->gop_size = 300;
00232             avctx_enc->max_b_frames= 0;
00233             avctx_enc->pix_fmt = PIX_FMT_YUV420P;
00234             avctx_enc->flags = CODEC_FLAG_QSCALE | CODEC_FLAG_LOW_DELAY;
00235             avctx_enc->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
00236             avctx_enc->global_quality= 123;
00237             avcodec_open(avctx_enc, enc);
00238             assert(avctx_enc->codec);
00239         }
00240         vf->priv->frame= avcodec_alloc_frame();
00241         vf->priv->frame_dec= avcodec_alloc_frame();
00242 
00243         vf->priv->outbuf_size= (width + BLOCK)*(height + BLOCK)*10;
00244         vf->priv->outbuf= malloc(vf->priv->outbuf_size);
00245 
00246         return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
00247 }
00248 
00249 static void get_image(struct vf_instance *vf, mp_image_t *mpi){
00250     if(mpi->flags&MP_IMGFLAG_PRESERVE) return; // don't change
00251     // ok, we can do pp in-place (or pp disabled):
00252     vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
00253         mpi->type, mpi->flags | MP_IMGFLAG_READABLE, mpi->width, mpi->height);
00254     mpi->planes[0]=vf->dmpi->planes[0];
00255     mpi->stride[0]=vf->dmpi->stride[0];
00256     mpi->width=vf->dmpi->width;
00257     if(mpi->flags&MP_IMGFLAG_PLANAR){
00258         mpi->planes[1]=vf->dmpi->planes[1];
00259         mpi->planes[2]=vf->dmpi->planes[2];
00260         mpi->stride[1]=vf->dmpi->stride[1];
00261         mpi->stride[2]=vf->dmpi->stride[2];
00262     }
00263     mpi->flags|=MP_IMGFLAG_DIRECT;
00264 }
00265 
00266 static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
00267     mp_image_t *dmpi;
00268 
00269     if(!(mpi->flags&MP_IMGFLAG_DIRECT)){
00270         // no DR, so get a new image! hope we'll get DR buffer:
00271         dmpi=vf_get_image(vf->next,mpi->imgfmt,
00272             MP_IMGTYPE_TEMP,
00273             MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
00274             mpi->width,mpi->height);
00275         vf_clone_mpi_attributes(dmpi, mpi);
00276     }else{
00277         dmpi=vf->dmpi;
00278     }
00279 
00280     vf->priv->mpeg2= mpi->qscale_type;
00281     if(vf->priv->log2_count || !(mpi->flags&MP_IMGFLAG_DIRECT)){
00282         if(mpi->qscale || vf->priv->qp){
00283             filter(vf->priv, dmpi->planes, mpi->planes, dmpi->stride, mpi->stride, mpi->w, mpi->h, mpi->qscale, mpi->qstride);
00284         }else{
00285             memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h, dmpi->stride[0], mpi->stride[0]);
00286             memcpy_pic(dmpi->planes[1], mpi->planes[1], mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, dmpi->stride[1], mpi->stride[1]);
00287             memcpy_pic(dmpi->planes[2], mpi->planes[2], mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, dmpi->stride[2], mpi->stride[2]);
00288         }
00289     }
00290 
00291 #if HAVE_MMX
00292     if(gCpuCaps.hasMMX) __asm__ volatile ("emms\n\t");
00293 #endif
00294 #if HAVE_MMX2
00295     if(gCpuCaps.hasMMX2) __asm__ volatile ("sfence\n\t");
00296 #endif
00297 
00298     return vf_next_put_image(vf,dmpi, pts);
00299 }
00300 
00301 static void uninit(struct vf_instance *vf){
00302     int i;
00303     if(!vf->priv) return;
00304 
00305     for(i=0; i<3; i++){
00306         free(vf->priv->temp[i]);
00307         vf->priv->temp[i]= NULL;
00308         free(vf->priv->src[i]);
00309         vf->priv->src[i]= NULL;
00310     }
00311     for(i=0; i<BLOCK*BLOCK; i++){
00312         av_freep(&vf->priv->avctx_enc[i]);
00313     }
00314 
00315     free(vf->priv);
00316     vf->priv=NULL;
00317 }
00318 
00319 //===========================================================================//
00320 static int query_format(struct vf_instance *vf, unsigned int fmt){
00321     switch(fmt){
00322         case IMGFMT_YV12:
00323         case IMGFMT_I420:
00324         case IMGFMT_IYUV:
00325         case IMGFMT_Y800:
00326         case IMGFMT_Y8:
00327             return vf_next_query_format(vf,fmt);
00328     }
00329     return 0;
00330 }
00331 
00332 static int control(struct vf_instance *vf, int request, void* data){
00333     switch(request){
00334     case VFCTRL_QUERY_MAX_PP_LEVEL:
00335         return 8;
00336     case VFCTRL_SET_PP_LEVEL:
00337         vf->priv->log2_count= *((unsigned int*)data);
00338         //FIXME we have to realloc a few things here
00339         return CONTROL_TRUE;
00340     }
00341     return vf_next_control(vf,request,data);
00342 }
00343 
00344 static int vf_open(vf_instance_t *vf, char *args){
00345 
00346     int log2c=-1;
00347 
00348     vf->config=config;
00349     vf->put_image=put_image;
00350     vf->get_image=get_image;
00351     vf->query_format=query_format;
00352     vf->uninit=uninit;
00353     vf->control= control;
00354     vf->priv=malloc(sizeof(struct vf_priv_s));
00355     memset(vf->priv, 0, sizeof(struct vf_priv_s));
00356 
00357     init_avcodec();
00358 
00359     vf->priv->log2_count= 4;
00360 
00361     if (args) sscanf(args, "%d:%d:%d", &log2c, &vf->priv->qp, &vf->priv->mode);
00362 
00363     if( log2c >=0 && log2c <=8 )
00364         vf->priv->log2_count = log2c;
00365 
00366     if(vf->priv->qp < 0)
00367         vf->priv->qp = 0;
00368 
00369 // #if HAVE_MMX
00370 //     if(gCpuCaps.hasMMX){
00371 //         store_slice= store_slice_mmx;
00372 //     }
00373 // #endif
00374 
00375     return 1;
00376 }
00377 
00378 const vf_info_t vf_info_uspp = {
00379     "ultra simple/slow postprocess",
00380     "uspp",
00381     "Michael Niedermayer",
00382     "",
00383     vf_open,
00384     NULL
00385 };
libavfilter/libmpcodecs/vf_uspp.c
