mirror of
https://github.com/mpv-player/mpv
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14495f48ab
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@11924 b3059339-0415-0410-9bf9-f77b7e298cf2
191 lines
5.3 KiB
C
191 lines
5.3 KiB
C
/*
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Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
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This program 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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This program 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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 <math.h>
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#include <inttypes.h>
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#include "../config.h"
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#ifdef USE_LIBAVCODEC
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#include "../mp_msg.h"
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#include "../cpudetect.h"
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#if 1
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double ff_eval(char *s, double *const_value, const char **const_name,
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double (**func1)(void *, double), const char **func1_name,
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double (**func2)(void *, double, double), char **func2_name,
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void *opaque);
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#endif
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#ifdef USE_LIBAVCODEC_SO
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#include <ffmpeg/avcodec.h>
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#include <ffmpeg/dsputil.h>
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#else
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#include "../libavcodec/avcodec.h"
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#include "../libavcodec/dsputil.h"
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#endif
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#ifdef HAVE_MALLOC_H
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#include <malloc.h>
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#endif
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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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char eq[200];
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int8_t *qp;
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int8_t lut[257];
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int qp_stride;
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};
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static int config(struct vf_instance_s* vf,
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int width, int height, int d_width, int d_height,
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unsigned int flags, unsigned int outfmt){
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int h= (height+15)>>4;
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int i;
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vf->priv->qp_stride= (width+15)>>4;
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vf->priv->qp= malloc(vf->priv->qp_stride*h*sizeof(int8_t));
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for(i=-129; i<128; i++){
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double const_values[]={
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M_PI,
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M_E,
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i != -129,
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i,
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0
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};
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static const char *const_names[]={
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"PI",
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"E",
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"known",
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"qp",
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NULL
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};
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vf->priv->lut[i+129]= lrintf(ff_eval(vf->priv->eq, const_values, const_names, NULL, NULL, NULL, NULL, NULL));
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}
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return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
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}
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static void get_image(struct vf_instance_s* vf, mp_image_t *mpi){
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if(mpi->flags&MP_IMGFLAG_PRESERVE) return; // don't change
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// ok, we can do pp in-place (or pp disabled):
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vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
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mpi->type, mpi->flags, mpi->w, mpi->h);
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mpi->planes[0]=vf->dmpi->planes[0];
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mpi->stride[0]=vf->dmpi->stride[0];
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mpi->width=vf->dmpi->width;
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if(mpi->flags&MP_IMGFLAG_PLANAR){
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mpi->planes[1]=vf->dmpi->planes[1];
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mpi->planes[2]=vf->dmpi->planes[2];
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mpi->stride[1]=vf->dmpi->stride[1];
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mpi->stride[2]=vf->dmpi->stride[2];
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}
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mpi->flags|=MP_IMGFLAG_DIRECT;
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}
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static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){
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mp_image_t *dmpi;
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int x,y;
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if(!(mpi->flags&MP_IMGFLAG_DIRECT)){
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// no DR, so get a new image! hope we'll get DR buffer:
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vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
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MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
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mpi->w,mpi->h);
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}
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dmpi= vf->dmpi;
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if(!(mpi->flags&MP_IMGFLAG_DIRECT)){
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memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h, 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], mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, dmpi->stride[1], mpi->stride[1]);
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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]);
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}
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}
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vf_clone_mpi_attributes(dmpi, mpi);
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dmpi->qscale = vf->priv->qp;
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dmpi->qstride= vf->priv->qp_stride;
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if(mpi->qscale){
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for(y=0; y<((dmpi->h+15)>>4); y++){
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for(x=0; x<vf->priv->qp_stride; x++){
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dmpi->qscale[x + dmpi->qstride*y]=
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vf->priv->lut[ 129 + ((int8_t)mpi->qscale[x + mpi->qstride*y]) ];
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}
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}
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}else{
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int qp= vf->priv->lut[0];
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for(y=0; y<((dmpi->h+15)>>4); y++){
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for(x=0; x<vf->priv->qp_stride; x++){
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dmpi->qscale[x + dmpi->qstride*y]= qp;
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}
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}
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}
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return vf_next_put_image(vf,dmpi);
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}
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static void uninit(struct vf_instance_s* vf){
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if(!vf->priv) return;
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if(vf->priv->qp) free(vf->priv->qp);
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vf->priv->qp= NULL;
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free(vf->priv);
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vf->priv=NULL;
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}
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//===========================================================================//
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static int open(vf_instance_t *vf, char* args){
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vf->config=config;
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vf->put_image=put_image;
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vf->get_image=get_image;
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vf->uninit=uninit;
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vf->priv=malloc(sizeof(struct vf_priv_s));
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memset(vf->priv, 0, sizeof(struct vf_priv_s));
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// avcodec_init();
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if (args) strncpy(vf->priv->eq, args, 199);
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return 1;
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}
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vf_info_t vf_info_qp = {
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"QP changer",
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"qp",
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"Michael Niedermayer",
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"",
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open,
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NULL
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};
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#endif //USE_LIBAVCODEC
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