2 * Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of MPlayer.
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.
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.
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.
28 #include "cpudetect.h"
29 #include "img_format.h"
32 #include "libvo/fastmemcpy.h"
34 #include "libavcodec/avcodec.h"
35 #include "libavutil/eval.h"
45 static int config(struct vf_instance *vf,
46 int width, int height, int d_width, int d_height,
47 unsigned int flags, unsigned int outfmt){
48 int h= (height+15)>>4;
51 vf->priv->qp_stride= (width+15)>>4;
52 vf->priv->qp= av_malloc(vf->priv->qp_stride*h*sizeof(int8_t));
54 for(i=-129; i<128; i++){
55 double const_values[]={
62 static const char *const_names[]={
72 res= av_expr_parse_and_eval(&temp_val, vf->priv->eq, const_names, const_values, NULL, NULL, NULL, NULL, NULL, 0, NULL);
75 ff_mp_msg(MSGT_VFILTER, MSGL_ERR, "qp: Error evaluating \"%s\" \n", vf->priv->eq);
78 vf->priv->lut[i+129]= lrintf(temp_val);
81 return ff_vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
84 static void get_image(struct vf_instance *vf, mp_image_t *mpi){
85 if(mpi->flags&MP_IMGFLAG_PRESERVE) return; // don't change
86 // ok, we can do pp in-place (or pp disabled):
87 vf->dmpi=ff_vf_get_image(vf->next,mpi->imgfmt,
88 mpi->type, mpi->flags, mpi->w, mpi->h);
89 mpi->planes[0]=vf->dmpi->planes[0];
90 mpi->stride[0]=vf->dmpi->stride[0];
91 mpi->width=vf->dmpi->width;
92 if(mpi->flags&MP_IMGFLAG_PLANAR){
93 mpi->planes[1]=vf->dmpi->planes[1];
94 mpi->planes[2]=vf->dmpi->planes[2];
95 mpi->stride[1]=vf->dmpi->stride[1];
96 mpi->stride[2]=vf->dmpi->stride[2];
98 mpi->flags|=MP_IMGFLAG_DIRECT;
101 static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
105 if(!(mpi->flags&MP_IMGFLAG_DIRECT)){
106 // no DR, so get a new image! hope we'll get DR buffer:
107 vf->dmpi=ff_vf_get_image(vf->next,mpi->imgfmt,
108 MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
114 if(!(mpi->flags&MP_IMGFLAG_DIRECT)){
115 memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h, dmpi->stride[0], mpi->stride[0]);
116 if(mpi->flags&MP_IMGFLAG_PLANAR){
117 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]);
118 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]);
121 ff_vf_clone_mpi_attributes(dmpi, mpi);
123 dmpi->qscale = vf->priv->qp;
124 dmpi->qstride= vf->priv->qp_stride;
126 for(y=0; y<((dmpi->h+15)>>4); y++){
127 for(x=0; x<vf->priv->qp_stride; x++){
128 dmpi->qscale[x + dmpi->qstride*y]=
129 vf->priv->lut[ 129 + ((int8_t)mpi->qscale[x + mpi->qstride*y]) ];
133 int qp= vf->priv->lut[0];
134 for(y=0; y<((dmpi->h+15)>>4); y++){
135 for(x=0; x<vf->priv->qp_stride; x++){
136 dmpi->qscale[x + dmpi->qstride*y]= qp;
141 return ff_vf_next_put_image(vf,dmpi, pts);
144 static void uninit(struct vf_instance *vf){
145 if(!vf->priv) return;
147 av_free(vf->priv->qp);
154 //===========================================================================//
155 static int vf_open(vf_instance_t *vf, char *args){
157 vf->put_image=put_image;
158 vf->get_image=get_image;
160 vf->priv=av_malloc(sizeof(struct vf_priv_s));
161 memset(vf->priv, 0, sizeof(struct vf_priv_s));
165 if (args) strncpy(vf->priv->eq, args, 199);
170 const vf_info_t ff_vf_info_qp = {
173 "Michael Niedermayer",