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  1. /*
  2.  * Copyright (C) 2005 Michael Niedermayer <michaelni@gmx.at>
  3.  *
  4.  * This file is part of MPlayer.
  5.  *
  6.  * MPlayer is free software; you can redistribute it and/or modify
  7.  * it under the terms of the GNU General Public License as published by
  8.  * the Free Software Foundation; either version 2 of the License, or
  9.  * (at your option) any later version.
  10.  *
  11.  * MPlayer is distributed in the hope that it will be useful,
  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14.  * GNU General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU General Public License along
  17.  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  18.  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19.  */
  20.  
  21. #include <stdio.h>
  22. #include <stdlib.h>
  23. #include <string.h>
  24. #include <inttypes.h>
  25. #include <math.h>
  26. #include <assert.h>
  27.  
  28. #include "config.h"
  29.  
  30. #include "mp_msg.h"
  31. #include "cpudetect.h"
  32.  
  33. #include "libavutil/mem.h"
  34. #include "libavcodec/avcodec.h"
  35.  
  36. #include "img_format.h"
  37. #include "mp_image.h"
  38. #include "vf.h"
  39. #include "av_helpers.h"
  40. #include "libvo/fastmemcpy.h"
  41.  
  42. #define XMIN(a,b) ((a) < (b) ? (a) : (b))
  43.  
  44. #define BLOCK 16
  45.  
  46. //===========================================================================//
  47. static const uint8_t  __attribute__((aligned(8))) dither[8][8]={
  48. {  0*4,  48*4,  12*4,  60*4,   3*4,  51*4,  15*4,  63*4, },
  49. { 32*4,  16*4,  44*4,  28*4,  35*4,  19*4,  47*4,  31*4, },
  50. {  8*4,  56*4,   4*4,  52*4,  11*4,  59*4,   7*4,  55*4, },
  51. { 40*4,  24*4,  36*4,  20*4,  43*4,  27*4,  39*4,  23*4, },
  52. {  2*4,  50*4,  14*4,  62*4,   1*4,  49*4,  13*4,  61*4, },
  53. { 34*4,  18*4,  46*4,  30*4,  33*4,  17*4,  45*4,  29*4, },
  54. { 10*4,  58*4,   6*4,  54*4,   9*4,  57*4,   5*4,  53*4, },
  55. { 42*4,  26*4,  38*4,  22*4,  41*4,  25*4,  37*4,  21*4, },
  56. };
  57.  
  58. static const uint8_t offset[511][2]= {
  59. { 0, 0},
  60. { 0, 0}, { 8, 8},
  61. { 0, 0}, { 4, 4}, {12, 8}, { 8,12},
  62. { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14},
  63.  
  64. { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14},
  65. { 5, 1}, {15, 3}, { 9, 5}, { 3, 7}, {13, 9}, { 7,11}, { 1,13}, {11,15},
  66.  
  67. { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
  68. { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
  69. { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 1, 5}, { 9, 5}, { 1,13}, { 9,13},
  70. { 6, 6}, {14, 6}, { 6,14}, {14,14}, { 3, 7}, {11, 7}, { 3,15}, {11,15},
  71.  
  72. { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
  73. { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
  74. { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
  75. { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
  76. { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
  77. { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
  78. { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
  79. { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 7}, {14, 7}, { 6,15}, {14,15},
  80.  
  81. { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 0, 2}, { 8, 2}, { 0,10}, { 8,10},
  82. { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 0, 6}, { 8, 6}, { 0,14}, { 8,14},
  83. { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 1, 3}, { 9, 3}, { 1,11}, { 9,11},
  84. { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 1, 7}, { 9, 7}, { 1,15}, { 9,15},
  85. { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 2, 2}, {10, 2}, { 2,10}, {10,10},
  86. { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 2, 6}, {10, 6}, { 2,14}, {10,14},
  87. { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 3, 3}, {11, 3}, { 3,11}, {11,11},
  88. { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 3, 7}, {11, 7}, { 3,15}, {11,15},
  89. { 4, 0}, {12, 0}, { 4, 8}, {12, 8}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
  90. { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
  91. { 5, 1}, {13, 1}, { 5, 9}, {13, 9}, { 5, 3}, {13, 3}, { 5,11}, {13,11},
  92. { 5, 5}, {13, 5}, { 5,13}, {13,13}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
  93. { 6, 0}, {14, 0}, { 6, 8}, {14, 8}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
  94. { 6, 4}, {14, 4}, { 6,12}, {14,12}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
  95. { 7, 1}, {15, 1}, { 7, 9}, {15, 9}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
  96. { 7, 5}, {15, 5}, { 7,13}, {15,13}, { 7, 7}, {15, 7}, { 7,15}, {15,15},
  97.  
  98. { 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}
  99. , { 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,
  100. 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},
  101. };
  102.  
  103. struct vf_priv_s {
  104.     int log2_count;
  105.     int qp;
  106.     int mode;
  107.     int mpeg2;
  108.     int temp_stride[3];
  109.     uint8_t *src[3];
  110.     int16_t *temp[3];
  111.     int outbuf_size;
  112.     uint8_t *outbuf;
  113.     AVCodecContext *avctx_enc[BLOCK*BLOCK];
  114.     AVFrame *frame;
  115.     AVFrame *frame_dec;
  116. };
  117.  
  118. static void store_slice_c(uint8_t *dst, int16_t *src, int dst_stride, int src_stride, int width, int height, int log2_scale){
  119.         int y, x;
  120.  
  121. #define STORE(pos) \
  122.         temp= ((src[x + y*src_stride + pos]<<log2_scale) + d[pos])>>8;\
  123.         if(temp & 0x100) temp= ~(temp>>31);\
  124.         dst[x + y*dst_stride + pos]= temp;
  125.  
  126.         for(y=0; y<height; y++){
  127.                 const uint8_t *d= dither[y&7];
  128.                 for(x=0; x<width; x+=8){
  129.                         int temp;
  130.                         STORE(0);
  131.                         STORE(1);
  132.                         STORE(2);
  133.                         STORE(3);
  134.                         STORE(4);
  135.                         STORE(5);
  136.                         STORE(6);
  137.                         STORE(7);
  138.                 }
  139.         }
  140. }
  141.  
  142. 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){
  143.     int x, y, i, j;
  144.     const int count= 1<<p->log2_count;
  145.  
  146.     for(i=0; i<3; i++){
  147.         int is_chroma= !!i;
  148.         int w= width >>is_chroma;
  149.         int h= height>>is_chroma;
  150.         int stride= p->temp_stride[i];
  151.         int block= BLOCK>>is_chroma;
  152.  
  153.         if (!src[i] || !dst[i])
  154.             continue; // HACK avoid crash for Y8 colourspace
  155.         for(y=0; y<h; y++){
  156.             int index= block + block*stride + y*stride;
  157.             fast_memcpy(p->src[i] + index, src[i] + y*src_stride[i], w);
  158.             for(x=0; x<block; x++){
  159.                 p->src[i][index     - x - 1]= p->src[i][index +     x    ];
  160.                 p->src[i][index + w + x    ]= p->src[i][index + w - x - 1];
  161.             }
  162.         }
  163.         for(y=0; y<block; y++){
  164.             fast_memcpy(p->src[i] + (  block-1-y)*stride, p->src[i] + (  y+block  )*stride, stride);
  165.             fast_memcpy(p->src[i] + (h+block  +y)*stride, p->src[i] + (h-y+block-1)*stride, stride);
  166.         }
  167.  
  168.         p->frame->linesize[i]= stride;
  169.         memset(p->temp[i], 0, (h+2*block)*stride*sizeof(int16_t));
  170.     }
  171.  
  172.     if(p->qp)
  173.         p->frame->quality= p->qp * FF_QP2LAMBDA;
  174.     else
  175.         p->frame->quality= norm_qscale(qp_store[0], p->mpeg2) * FF_QP2LAMBDA;
  176. //    init per MB qscale stuff FIXME
  177.  
  178.     for(i=0; i<count; i++){
  179.         const int x1= offset[i+count-1][0];
  180.         const int y1= offset[i+count-1][1];
  181.         int offset;
  182.         p->frame->data[0]= p->src[0] + x1 + y1 * p->frame->linesize[0];
  183.         p->frame->data[1]= p->src[1] + x1/2 + y1/2 * p->frame->linesize[1];
  184.         p->frame->data[2]= p->src[2] + x1/2 + y1/2 * p->frame->linesize[2];
  185.  
  186.         avcodec_encode_video(p->avctx_enc[i], p->outbuf, p->outbuf_size, p->frame);
  187.         p->frame_dec = p->avctx_enc[i]->coded_frame;
  188.  
  189.         offset= (BLOCK-x1) + (BLOCK-y1)*p->frame_dec->linesize[0];
  190.         //FIXME optimize
  191.         for(y=0; y<height; y++){
  192.             for(x=0; x<width; x++){
  193.                 p->temp[0][ x + y*p->temp_stride[0] ] += p->frame_dec->data[0][ x + y*p->frame_dec->linesize[0] + offset ];
  194.             }
  195.         }
  196.         offset= (BLOCK/2-x1/2) + (BLOCK/2-y1/2)*p->frame_dec->linesize[1];
  197.         for(y=0; y<height/2; y++){
  198.             for(x=0; x<width/2; x++){
  199.                 p->temp[1][ x + y*p->temp_stride[1] ] += p->frame_dec->data[1][ x + y*p->frame_dec->linesize[1] + offset ];
  200.                 p->temp[2][ x + y*p->temp_stride[2] ] += p->frame_dec->data[2][ x + y*p->frame_dec->linesize[2] + offset ];
  201.             }
  202.         }
  203.     }
  204.  
  205.     for(j=0; j<3; j++){
  206.         int is_chroma= !!j;
  207.         if (!dst[j])
  208.             continue; // HACK avoid crash for Y8 colourspace
  209.         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);
  210.     }
  211. }
  212.  
  213. static int config(struct vf_instance *vf,
  214.         int width, int height, int d_width, int d_height,
  215.         unsigned int flags, unsigned int outfmt){
  216.         int i;
  217.         AVCodec *enc= avcodec_find_encoder(AV_CODEC_ID_SNOW);
  218.  
  219.         for(i=0; i<3; i++){
  220.             int is_chroma= !!i;
  221.             int w= ((width  + 4*BLOCK-1) & (~(2*BLOCK-1)))>>is_chroma;
  222.             int h= ((height + 4*BLOCK-1) & (~(2*BLOCK-1)))>>is_chroma;
  223.  
  224.             vf->priv->temp_stride[i]= w;
  225.             vf->priv->temp[i]= malloc(vf->priv->temp_stride[i]*h*sizeof(int16_t));
  226.             vf->priv->src [i]= malloc(vf->priv->temp_stride[i]*h*sizeof(uint8_t));
  227.         }
  228.         for(i=0; i< (1<<vf->priv->log2_count); i++){
  229.             AVCodecContext *avctx_enc;
  230.             AVDictionary *opts = NULL;
  231.  
  232.             avctx_enc=
  233.             vf->priv->avctx_enc[i]= avcodec_alloc_context3(NULL);
  234.             avctx_enc->width = width + BLOCK;
  235.             avctx_enc->height = height + BLOCK;
  236.             avctx_enc->time_base= (AVRational){1,25};  // meaningless
  237.             avctx_enc->gop_size = 300;
  238.             avctx_enc->max_b_frames= 0;
  239.             avctx_enc->pix_fmt = AV_PIX_FMT_YUV420P;
  240.             avctx_enc->flags = CODEC_FLAG_QSCALE | CODEC_FLAG_LOW_DELAY;
  241.             avctx_enc->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
  242.             avctx_enc->global_quality= 123;
  243.             av_dict_set(&opts, "no_bitstream", "1", 0);
  244.             avcodec_open2(avctx_enc, enc, &opts);
  245.             av_dict_free(&opts);
  246.             assert(avctx_enc->codec);
  247.         }
  248.         vf->priv->frame= avcodec_alloc_frame();
  249.         vf->priv->frame_dec= avcodec_alloc_frame();
  250.  
  251.         vf->priv->outbuf_size= (width + BLOCK)*(height + BLOCK)*10;
  252.         vf->priv->outbuf= malloc(vf->priv->outbuf_size);
  253.  
  254.         return ff_vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
  255. }
  256.  
  257. static void get_image(struct vf_instance *vf, mp_image_t *mpi){
  258.     if(mpi->flags&MP_IMGFLAG_PRESERVE) return; // don't change
  259.     // ok, we can do pp in-place (or pp disabled):
  260.     vf->dmpi=ff_vf_get_image(vf->next,mpi->imgfmt,
  261.         mpi->type, mpi->flags | MP_IMGFLAG_READABLE, mpi->width, mpi->height);
  262.     mpi->planes[0]=vf->dmpi->planes[0];
  263.     mpi->stride[0]=vf->dmpi->stride[0];
  264.     mpi->width=vf->dmpi->width;
  265.     if(mpi->flags&MP_IMGFLAG_PLANAR){
  266.         mpi->planes[1]=vf->dmpi->planes[1];
  267.         mpi->planes[2]=vf->dmpi->planes[2];
  268.         mpi->stride[1]=vf->dmpi->stride[1];
  269.         mpi->stride[2]=vf->dmpi->stride[2];
  270.     }
  271.     mpi->flags|=MP_IMGFLAG_DIRECT;
  272. }
  273.  
  274. static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
  275.     mp_image_t *dmpi;
  276.  
  277.     if(!(mpi->flags&MP_IMGFLAG_DIRECT)){
  278.         // no DR, so get a new image! hope we'll get DR buffer:
  279.         dmpi=ff_vf_get_image(vf->next,mpi->imgfmt,
  280.             MP_IMGTYPE_TEMP,
  281.             MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
  282.             mpi->width,mpi->height);
  283.         ff_vf_clone_mpi_attributes(dmpi, mpi);
  284.     }else{
  285.         dmpi=vf->dmpi;
  286.     }
  287.  
  288.     vf->priv->mpeg2= mpi->qscale_type;
  289.     if(vf->priv->log2_count || !(mpi->flags&MP_IMGFLAG_DIRECT)){
  290.         if(mpi->qscale || vf->priv->qp){
  291.             filter(vf->priv, dmpi->planes, mpi->planes, dmpi->stride, mpi->stride, mpi->w, mpi->h, mpi->qscale, mpi->qstride);
  292.         }else{
  293.             memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h, dmpi->stride[0], mpi->stride[0]);
  294.             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]);
  295.             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]);
  296.         }
  297.     }
  298.  
  299. #if HAVE_MMX
  300.     if(ff_gCpuCaps.hasMMX) __asm__ volatile ("emms\n\t");
  301. #endif
  302. #if HAVE_MMX2
  303.     if(ff_gCpuCaps.hasMMX2) __asm__ volatile ("sfence\n\t");
  304. #endif
  305.  
  306.     return ff_vf_next_put_image(vf,dmpi, pts);
  307. }
  308.  
  309. static void uninit(struct vf_instance *vf){
  310.     int i;
  311.     if(!vf->priv) return;
  312.  
  313.     for(i=0; i<3; i++){
  314.         free(vf->priv->temp[i]);
  315.         vf->priv->temp[i]= NULL;
  316.         free(vf->priv->src[i]);
  317.         vf->priv->src[i]= NULL;
  318.     }
  319.     for(i=0; i<BLOCK*BLOCK; i++){
  320.         av_freep(&vf->priv->avctx_enc[i]);
  321.     }
  322.  
  323.     free(vf->priv);
  324.     vf->priv=NULL;
  325. }
  326.  
  327. //===========================================================================//
  328. static int query_format(struct vf_instance *vf, unsigned int fmt){
  329.     switch(fmt){
  330.         case IMGFMT_YV12:
  331.         case IMGFMT_I420:
  332.         case IMGFMT_IYUV:
  333.         case IMGFMT_Y800:
  334.         case IMGFMT_Y8:
  335.             return ff_vf_next_query_format(vf,fmt);
  336.     }
  337.     return 0;
  338. }
  339.  
  340. static int control(struct vf_instance *vf, int request, void* data){
  341.     switch(request){
  342.     case VFCTRL_QUERY_MAX_PP_LEVEL:
  343.         return 8;
  344.     case VFCTRL_SET_PP_LEVEL:
  345.         vf->priv->log2_count= *((unsigned int*)data);
  346.         //FIXME we have to realloc a few things here
  347.         return CONTROL_TRUE;
  348.     }
  349.     return ff_vf_next_control(vf,request,data);
  350. }
  351.  
  352. static int vf_open(vf_instance_t *vf, char *args){
  353.  
  354.     int log2c=-1;
  355.  
  356.     vf->config=config;
  357.     vf->put_image=put_image;
  358.     vf->get_image=get_image;
  359.     vf->query_format=query_format;
  360.     vf->uninit=uninit;
  361.     vf->control= control;
  362.     vf->priv=malloc(sizeof(struct vf_priv_s));
  363.     memset(vf->priv, 0, sizeof(struct vf_priv_s));
  364.  
  365.     ff_init_avcodec();
  366.  
  367.     vf->priv->log2_count= 4;
  368.  
  369.     if (args) sscanf(args, "%d:%d:%d", &log2c, &vf->priv->qp, &vf->priv->mode);
  370.  
  371.     if( log2c >=0 && log2c <=8 )
  372.         vf->priv->log2_count = log2c;
  373.  
  374.     if(vf->priv->qp < 0)
  375.         vf->priv->qp = 0;
  376.  
  377. // #if HAVE_MMX
  378. //     if(ff_gCpuCaps.hasMMX){
  379. //         store_slice= store_slice_mmx;
  380. //     }
  381. // #endif
  382.  
  383.     return 1;
  384. }
  385.  
  386. const vf_info_t ff_vf_info_uspp = {
  387.     "ultra simple/slow postprocess",
  388.     "uspp",
  389.     "Michael Niedermayer",
  390.     "",
  391.     vf_open,
  392.     NULL
  393. };
  394.