| /* |
| * Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at> |
| * |
| * This file is part of MPlayer. |
| * |
| * MPlayer is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * MPlayer is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with MPlayer; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <math.h> |
| #include <inttypes.h> |
| |
| #include "mp_msg.h" |
| #include "cpudetect.h" |
| #include "img_format.h" |
| #include "mp_image.h" |
| #include "vf.h" |
| #include "libvo/fastmemcpy.h" |
| |
| #include "libavcodec/avcodec.h" |
| #include "libavutil/eval.h" |
| |
| |
| struct vf_priv_s { |
| char eq[200]; |
| int8_t *qp; |
| int8_t lut[257]; |
| int qp_stride; |
| }; |
| |
| static int config(struct vf_instance *vf, |
| int width, int height, int d_width, int d_height, |
| unsigned int flags, unsigned int outfmt){ |
| int h= (height+15)>>4; |
| int i; |
| |
| vf->priv->qp_stride= (width+15)>>4; |
| vf->priv->qp= av_malloc(vf->priv->qp_stride*h*sizeof(int8_t)); |
| |
| for(i=-129; i<128; i++){ |
| double const_values[]={ |
| M_PI, |
| M_E, |
| i != -129, |
| i, |
| 0 |
| }; |
| static const char *const_names[]={ |
| "PI", |
| "E", |
| "known", |
| "qp", |
| NULL |
| }; |
| double temp_val; |
| int res; |
| |
| res= av_expr_parse_and_eval(&temp_val, vf->priv->eq, const_names, const_values, NULL, NULL, NULL, NULL, NULL, 0, NULL); |
| |
| if (res < 0){ |
| mp_msg(MSGT_VFILTER, MSGL_ERR, "qp: Error evaluating \"%s\" \n", vf->priv->eq); |
| return 0; |
| } |
| vf->priv->lut[i+129]= lrintf(temp_val); |
| } |
| |
| return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt); |
| } |
| |
| static void get_image(struct vf_instance *vf, mp_image_t *mpi){ |
| if(mpi->flags&MP_IMGFLAG_PRESERVE) return; // don't change |
| // ok, we can do pp in-place (or pp disabled): |
| vf->dmpi=vf_get_image(vf->next,mpi->imgfmt, |
| mpi->type, mpi->flags, mpi->w, mpi->h); |
| mpi->planes[0]=vf->dmpi->planes[0]; |
| mpi->stride[0]=vf->dmpi->stride[0]; |
| mpi->width=vf->dmpi->width; |
| if(mpi->flags&MP_IMGFLAG_PLANAR){ |
| mpi->planes[1]=vf->dmpi->planes[1]; |
| mpi->planes[2]=vf->dmpi->planes[2]; |
| mpi->stride[1]=vf->dmpi->stride[1]; |
| mpi->stride[2]=vf->dmpi->stride[2]; |
| } |
| mpi->flags|=MP_IMGFLAG_DIRECT; |
| } |
| |
| static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){ |
| mp_image_t *dmpi; |
| int x,y; |
| |
| if(!(mpi->flags&MP_IMGFLAG_DIRECT)){ |
| // no DR, so get a new image! hope we'll get DR buffer: |
| vf->dmpi=vf_get_image(vf->next,mpi->imgfmt, |
| MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_PREFER_ALIGNED_STRIDE, |
| mpi->w,mpi->h); |
| } |
| |
| dmpi= vf->dmpi; |
| |
| if(!(mpi->flags&MP_IMGFLAG_DIRECT)){ |
| memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h, dmpi->stride[0], mpi->stride[0]); |
| if(mpi->flags&MP_IMGFLAG_PLANAR){ |
| 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]); |
| 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]); |
| } |
| } |
| vf_clone_mpi_attributes(dmpi, mpi); |
| |
| dmpi->qscale = vf->priv->qp; |
| dmpi->qstride= vf->priv->qp_stride; |
| if(mpi->qscale){ |
| for(y=0; y<((dmpi->h+15)>>4); y++){ |
| for(x=0; x<vf->priv->qp_stride; x++){ |
| dmpi->qscale[x + dmpi->qstride*y]= |
| vf->priv->lut[ 129 + ((int8_t)mpi->qscale[x + mpi->qstride*y]) ]; |
| } |
| } |
| }else{ |
| int qp= vf->priv->lut[0]; |
| for(y=0; y<((dmpi->h+15)>>4); y++){ |
| for(x=0; x<vf->priv->qp_stride; x++){ |
| dmpi->qscale[x + dmpi->qstride*y]= qp; |
| } |
| } |
| } |
| |
| return vf_next_put_image(vf,dmpi, pts); |
| } |
| |
| static void uninit(struct vf_instance *vf){ |
| if(!vf->priv) return; |
| |
| av_free(vf->priv->qp); |
| vf->priv->qp= NULL; |
| |
| av_free(vf->priv); |
| vf->priv=NULL; |
| } |
| |
| //===========================================================================// |
| static int vf_open(vf_instance_t *vf, char *args){ |
| vf->config=config; |
| vf->put_image=put_image; |
| vf->get_image=get_image; |
| vf->uninit=uninit; |
| vf->priv=av_malloc(sizeof(struct vf_priv_s)); |
| memset(vf->priv, 0, sizeof(struct vf_priv_s)); |
| |
| // avcodec_init(); |
| |
| if (args) strncpy(vf->priv->eq, args, 199); |
| |
| return 1; |
| } |
| |
| const vf_info_t vf_info_qp = { |
| "QP changer", |
| "qp", |
| "Michael Niedermayer", |
| "", |
| vf_open, |
| NULL |
| }; |