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/*
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 * Copyright (C) 2005 Michael Niedermayer <michaelni@gmx.at>
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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 <inttypes.h>
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#include <math.h>
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#include <assert.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 "libavcodec/avcodec.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 "vd_ffmpeg.h"
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#include "libvo/fastmemcpy.h"
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#define XMIN(a,b) ((a) < (b) ? (a) : (b))
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#define BLOCK 16
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//===========================================================================//
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static const uint8_t  __attribute__((aligned(8))) dither[8][8]={
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{  0*4,  48*4,  12*4,  60*4,   3*4,  51*4,  15*4,  63*4, },
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{ 32*4,  16*4,  44*4,  28*4,  35*4,  19*4,  47*4,  31*4, },
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{  8*4,  56*4,   4*4,  52*4,  11*4,  59*4,   7*4,  55*4, },
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{ 40*4,  24*4,  36*4,  20*4,  43*4,  27*4,  39*4,  23*4, },
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{  2*4,  50*4,  14*4,  62*4,   1*4,  49*4,  13*4,  61*4, },
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{ 34*4,  18*4,  46*4,  30*4,  33*4,  17*4,  45*4,  29*4, },
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{ 10*4,  58*4,   6*4,  54*4,   9*4,  57*4,   5*4,  53*4, },
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{ 42*4,  26*4,  38*4,  22*4,  41*4,  25*4,  37*4,  21*4, },
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};
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static const uint8_t offset[511][2]= {
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{ 0, 0},
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{ 0, 0}, { 8, 8},
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{ 0, 0}, { 4, 4}, {12, 8}, { 8,12},
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{ 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14},
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{ 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14},
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{ 5, 1}, {15, 3}, { 9, 5}, { 3, 7}, {13, 9}, { 7,11}, { 1,13}, {11,15},
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{ 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
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{ 2, 2}, {10, 2}, { 2,10}, {10,10}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
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{ 4, 4}, {12, 4}, { 4,12}, {12,12}, { 1, 5}, { 9, 5}, { 1,13}, { 9,13},
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{ 6, 6}, {14, 6}, { 6,14}, {14,14}, { 3, 7}, {11, 7}, { 3,15}, {11,15},
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{ 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
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{ 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
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{ 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
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{ 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
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{ 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
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{ 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
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{ 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
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{ 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 7}, {14, 7}, { 6,15}, {14,15},
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{ 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 0, 2}, { 8, 2}, { 0,10}, { 8,10},
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{ 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 0, 6}, { 8, 6}, { 0,14}, { 8,14},
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{ 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 1, 3}, { 9, 3}, { 1,11}, { 9,11},
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{ 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 1, 7}, { 9, 7}, { 1,15}, { 9,15},
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{ 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 2, 2}, {10, 2}, { 2,10}, {10,10},
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{ 2, 4}, {10, 4}, { 2,12}, {10,12}, { 2, 6}, {10, 6}, { 2,14}, {10,14},
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{ 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 3, 3}, {11, 3}, { 3,11}, {11,11},
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{ 3, 5}, {11, 5}, { 3,13}, {11,13}, { 3, 7}, {11, 7}, { 3,15}, {11,15},
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{ 4, 0}, {12, 0}, { 4, 8}, {12, 8}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
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{ 4, 4}, {12, 4}, { 4,12}, {12,12}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
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{ 5, 1}, {13, 1}, { 5, 9}, {13, 9}, { 5, 3}, {13, 3}, { 5,11}, {13,11},
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{ 5, 5}, {13, 5}, { 5,13}, {13,13}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
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{ 6, 0}, {14, 0}, { 6, 8}, {14, 8}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
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{ 6, 4}, {14, 4}, { 6,12}, {14,12}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
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{ 7, 1}, {15, 1}, { 7, 9}, {15, 9}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
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{ 7, 5}, {15, 5}, { 7,13}, {15,13}, { 7, 7}, {15, 7}, { 7,15}, {15,15},
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{ 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},
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};
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100
struct vf_priv_s {
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    int log2_count;
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    int qp;
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    int mode;
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    int mpeg2;
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    int temp_stride[3];
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    uint8_t *src[3];
107
    int16_t *temp[3];
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    int outbuf_size;
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    uint8_t *outbuf;
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    AVCodecContext *avctx_enc[BLOCK*BLOCK];
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    AVFrame *frame;
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    AVFrame *frame_dec;
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};
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static void store_slice_c(uint8_t *dst, int16_t *src, int dst_stride, int src_stride, int width, int height, int log2_scale){
116
        int y, x;
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118
#define STORE(pos) \
119
        temp= ((src[x + y*src_stride + pos]<<log2_scale) + d[pos])>>8;\
120
        if(temp & 0x100) temp= ~(temp>>31);\
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        dst[x + y*dst_stride + pos]= temp;
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        for(y=0; y<height; y++){
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                const uint8_t *d= dither[y&7];
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                for(x=0; x<width; x+=8){
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                        int temp;
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                        STORE(0);
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                        STORE(1);
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                        STORE(2);
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                        STORE(3);
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                        STORE(4);
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                        STORE(5);
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                        STORE(6);
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                        STORE(7);
135
                }
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        }
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}
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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){
140
    int x, y, i, j;
141
    const int count= 1<<p->log2_count;
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143
    for(i=0; i<3; i++){
144
        int is_chroma= !!i;
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        int w= width >>is_chroma;
146
        int h= height>>is_chroma;
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        int stride= p->temp_stride[i];
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        int block= BLOCK>>is_chroma;
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150
        if (!src[i] || !dst[i])
151
            continue; // HACK avoid crash for Y8 colourspace
152
        for(y=0; y<h; y++){
153
            int index= block + block*stride + y*stride;
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            fast_memcpy(p->src[i] + index, src[i] + y*src_stride[i], w);
155
            for(x=0; x<block; x++){
156
                p->src[i][index     - x - 1]= p->src[i][index +     x    ];
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                p->src[i][index + w + x    ]= p->src[i][index + w - x - 1];
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            }
159
        }
160
        for(y=0; y<block; y++){
161
            fast_memcpy(p->src[i] + (  block-1-y)*stride, p->src[i] + (  y+block  )*stride, stride);
162
            fast_memcpy(p->src[i] + (h+block  +y)*stride, p->src[i] + (h-y+block-1)*stride, stride);
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        }
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165
        p->frame->linesize[i]= stride;
166
        memset(p->temp[i], 0, (h+2*block)*stride*sizeof(int16_t));
167
    }
168

    
169
    if(p->qp)
170
        p->frame->quality= p->qp * FF_QP2LAMBDA;
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    else
172
        p->frame->quality= norm_qscale(qp_store[0], p->mpeg2) * FF_QP2LAMBDA;
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//    init per MB qscale stuff FIXME
174

    
175
    for(i=0; i<count; i++){
176
        const int x1= offset[i+count-1][0];
177
        const int y1= offset[i+count-1][1];
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        int offset, out_size;
179
        p->frame->data[0]= p->src[0] + x1 + y1 * p->frame->linesize[0];
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        p->frame->data[1]= p->src[1] + x1/2 + y1/2 * p->frame->linesize[1];
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        p->frame->data[2]= p->src[2] + x1/2 + y1/2 * p->frame->linesize[2];
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        out_size = avcodec_encode_video(p->avctx_enc[i], p->outbuf, p->outbuf_size, p->frame);
184
        p->frame_dec = p->avctx_enc[i]->coded_frame;
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186
        offset= (BLOCK-x1) + (BLOCK-y1)*p->frame_dec->linesize[0];
187
        //FIXME optimize
188
        for(y=0; y<height; y++){
189
            for(x=0; x<width; x++){
190
                p->temp[0][ x + y*p->temp_stride[0] ] += p->frame_dec->data[0][ x + y*p->frame_dec->linesize[0] + offset ];
191
            }
192
        }
193
        offset= (BLOCK/2-x1/2) + (BLOCK/2-y1/2)*p->frame_dec->linesize[1];
194
        for(y=0; y<height/2; y++){
195
            for(x=0; x<width/2; x++){
196
                p->temp[1][ x + y*p->temp_stride[1] ] += p->frame_dec->data[1][ x + y*p->frame_dec->linesize[1] + offset ];
197
                p->temp[2][ x + y*p->temp_stride[2] ] += p->frame_dec->data[2][ x + y*p->frame_dec->linesize[2] + offset ];
198
            }
199
        }
200
    }
201

    
202
    for(j=0; j<3; j++){
203
        int is_chroma= !!j;
204
        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);
205
    }
206
}
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208
static int config(struct vf_instance *vf,
209
        int width, int height, int d_width, int d_height,
210
        unsigned int flags, unsigned int outfmt){
211
        int i;
212
        AVCodec *enc= avcodec_find_encoder(CODEC_ID_SNOW);
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214
        for(i=0; i<3; i++){
215
            int is_chroma= !!i;
216
            int w= ((width  + 4*BLOCK-1) & (~(2*BLOCK-1)))>>is_chroma;
217
            int h= ((height + 4*BLOCK-1) & (~(2*BLOCK-1)))>>is_chroma;
218

    
219
            vf->priv->temp_stride[i]= w;
220
            vf->priv->temp[i]= malloc(vf->priv->temp_stride[i]*h*sizeof(int16_t));
221
            vf->priv->src [i]= malloc(vf->priv->temp_stride[i]*h*sizeof(uint8_t));
222
        }
223
        for(i=0; i< (1<<vf->priv->log2_count); i++){
224
            AVCodecContext *avctx_enc;
225

    
226
            avctx_enc=
227
            vf->priv->avctx_enc[i]= avcodec_alloc_context();
228
            avctx_enc->width = width + BLOCK;
229
            avctx_enc->height = height + BLOCK;
230
            avctx_enc->time_base= (AVRational){1,25};  // meaningless
231
            avctx_enc->gop_size = 300;
232
            avctx_enc->max_b_frames= 0;
233
            avctx_enc->pix_fmt = PIX_FMT_YUV420P;
234
            avctx_enc->flags = CODEC_FLAG_QSCALE | CODEC_FLAG_LOW_DELAY;
235
            avctx_enc->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
236
            avctx_enc->global_quality= 123;
237
            avcodec_open(avctx_enc, enc);
238
            assert(avctx_enc->codec);
239
        }
240
        vf->priv->frame= avcodec_alloc_frame();
241
        vf->priv->frame_dec= avcodec_alloc_frame();
242

    
243
        vf->priv->outbuf_size= (width + BLOCK)*(height + BLOCK)*10;
244
        vf->priv->outbuf= malloc(vf->priv->outbuf_size);
245

    
246
        return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
247
}
248

    
249
static void get_image(struct vf_instance *vf, mp_image_t *mpi){
250
    if(mpi->flags&MP_IMGFLAG_PRESERVE) return; // don't change
251
    // ok, we can do pp in-place (or pp disabled):
252
    vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
253
        mpi->type, mpi->flags | MP_IMGFLAG_READABLE, mpi->width, mpi->height);
254
    mpi->planes[0]=vf->dmpi->planes[0];
255
    mpi->stride[0]=vf->dmpi->stride[0];
256
    mpi->width=vf->dmpi->width;
257
    if(mpi->flags&MP_IMGFLAG_PLANAR){
258
        mpi->planes[1]=vf->dmpi->planes[1];
259
        mpi->planes[2]=vf->dmpi->planes[2];
260
        mpi->stride[1]=vf->dmpi->stride[1];
261
        mpi->stride[2]=vf->dmpi->stride[2];
262
    }
263
    mpi->flags|=MP_IMGFLAG_DIRECT;
264
}
265

    
266
static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
267
    mp_image_t *dmpi;
268

    
269
    if(!(mpi->flags&MP_IMGFLAG_DIRECT)){
270
        // no DR, so get a new image! hope we'll get DR buffer:
271
        dmpi=vf_get_image(vf->next,mpi->imgfmt,
272
            MP_IMGTYPE_TEMP,
273
            MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
274
            mpi->width,mpi->height);
275
        vf_clone_mpi_attributes(dmpi, mpi);
276
    }else{
277
        dmpi=vf->dmpi;
278
    }
279

    
280
    vf->priv->mpeg2= mpi->qscale_type;
281
    if(vf->priv->log2_count || !(mpi->flags&MP_IMGFLAG_DIRECT)){
282
        if(mpi->qscale || vf->priv->qp){
283
            filter(vf->priv, dmpi->planes, mpi->planes, dmpi->stride, mpi->stride, mpi->w, mpi->h, mpi->qscale, mpi->qstride);
284
        }else{
285
            memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h, dmpi->stride[0], mpi->stride[0]);
286
            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]);
287
            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]);
288
        }
289
    }
290

    
291
#if HAVE_MMX
292
    if(gCpuCaps.hasMMX) __asm__ volatile ("emms\n\t");
293
#endif
294
#if HAVE_MMX2
295
    if(gCpuCaps.hasMMX2) __asm__ volatile ("sfence\n\t");
296
#endif
297

    
298
    return vf_next_put_image(vf,dmpi, pts);
299
}
300

    
301
static void uninit(struct vf_instance *vf){
302
    int i;
303
    if(!vf->priv) return;
304

    
305
    for(i=0; i<3; i++){
306
        free(vf->priv->temp[i]);
307
        vf->priv->temp[i]= NULL;
308
        free(vf->priv->src[i]);
309
        vf->priv->src[i]= NULL;
310
    }
311
    for(i=0; i<BLOCK*BLOCK; i++){
312
        av_freep(&vf->priv->avctx_enc[i]);
313
    }
314

    
315
    free(vf->priv);
316
    vf->priv=NULL;
317
}
318

    
319
//===========================================================================//
320
static int query_format(struct vf_instance *vf, unsigned int fmt){
321
    switch(fmt){
322
        case IMGFMT_YV12:
323
        case IMGFMT_I420:
324
        case IMGFMT_IYUV:
325
        case IMGFMT_Y800:
326
        case IMGFMT_Y8:
327
            return vf_next_query_format(vf,fmt);
328
    }
329
    return 0;
330
}
331

    
332
static int control(struct vf_instance *vf, int request, void* data){
333
    switch(request){
334
    case VFCTRL_QUERY_MAX_PP_LEVEL:
335
        return 8;
336
    case VFCTRL_SET_PP_LEVEL:
337
        vf->priv->log2_count= *((unsigned int*)data);
338
        //FIXME we have to realloc a few things here
339
        return CONTROL_TRUE;
340
    }
341
    return vf_next_control(vf,request,data);
342
}
343

    
344
static int vf_open(vf_instance_t *vf, char *args){
345

    
346
    int log2c=-1;
347

    
348
    vf->config=config;
349
    vf->put_image=put_image;
350
    vf->get_image=get_image;
351
    vf->query_format=query_format;
352
    vf->uninit=uninit;
353
    vf->control= control;
354
    vf->priv=malloc(sizeof(struct vf_priv_s));
355
    memset(vf->priv, 0, sizeof(struct vf_priv_s));
356

    
357
    init_avcodec();
358

    
359
    vf->priv->log2_count= 4;
360

    
361
    if (args) sscanf(args, "%d:%d:%d", &log2c, &vf->priv->qp, &vf->priv->mode);
362

    
363
    if( log2c >=0 && log2c <=8 )
364
        vf->priv->log2_count = log2c;
365

    
366
    if(vf->priv->qp < 0)
367
        vf->priv->qp = 0;
368

    
369
// #if HAVE_MMX
370
//     if(gCpuCaps.hasMMX){
371
//         store_slice= store_slice_mmx;
372
//     }
373
// #endif
374

    
375
    return 1;
376
}
377

    
378
const vf_info_t vf_info_uspp = {
379
    "ultra simple/slow postprocess",
380
    "uspp",
381
    "Michael Niedermayer",
382
    "",
383
    vf_open,
384
    NULL
385
};