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Motion compensating deinterlacer 

note, the code could probably benefit from some finetuning / experimentation in case anyone is bored ...


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@18591 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
michael 2006-06-06 00:11:13 +00:00
parent cf063c0e6f
commit f31bc72365
4 changed files with 315 additions and 0 deletions
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14
DOCS/man/en/mplayer.1
View File

@ -5891,6 +5891,20 @@ bottom-first
.PD 1
.
.TP
.B mcdeint=[mode[:parity[:qp]]]
Motion compensating deinterlacer, this must be used together with tfields=1 or equivalent so that mcdeint has 1 field per frame as input
.PD 0
.RSs
.IPs <mode>
0 (fast), 1 (medium), 2(slow, uses iterative me), 3(extra slow, multiple reference frames too)
.IPs <parity>
0 or 1 selects which field to use (note, no autodetection yet!)
.IPs <qp>
higher values should result in a more smooth motion vector field but less optimal individual vectors
.RE
.PD 1
.
.TP
.B boxblur=radius:power[:radius:power]
box blur
.PD 0

1
libmpcodecs/Makefile
View File

@ -157,6 +157,7 @@ VFILTER_LAVC_DSPUTIL_SRCS += vf_uspp.c \
vf_fspp.c \
vf_qp.c \
vf_spp.c \
vf_mcdeint.c \
ifeq ($(CONFIG_LIBPOSTPROC),yes)
VFILTER_SRCS += vf_pp.c

4
libmpcodecs/vf.c
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@ -100,6 +100,7 @@ extern vf_info_t vf_info_divtc;
extern vf_info_t vf_info_harddup;
extern vf_info_t vf_info_softskip;
extern vf_info_t vf_info_screenshot;
extern vf_info_t vf_info_mcdeint;
// list of available filters:
static vf_info_t* filter_list[]={
@ -190,6 +191,9 @@ static vf_info_t* filter_list[]={
&vf_info_softskip,
#ifdef HAVE_PNG
&vf_info_screenshot,
#endif
#ifdef USE_LIBAVCODEC
&vf_info_mcdeint,
#endif
NULL
};

296
libmpcodecs/vf_mcdeint.c Normal file
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@ -0,0 +1,296 @@
/*
Copyright (C) 2006 Michael Niedermayer <michaelni@gmx.at>
This program 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.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <math.h>
#include "config.h"
#include "mp_msg.h"
#include "cpudetect.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/dsputil.h"
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "libvo/fastmemcpy.h"
#define MIN(a,b) ((a) > (b) ? (b) : (a))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define ABS(a) ((a) > 0 ? (a) : (-(a)))
//===========================================================================//
struct vf_priv_s {
int mode;
int qp;
int parity;
#if 0
int temp_stride[3];
uint8_t *src[3];
int16_t *temp[3];
#endif
int outbuf_size;
uint8_t *outbuf;
AVCodecContext *avctx_enc;
AVFrame *frame;
AVFrame *frame_dec;
};
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){
int x, y, i;
int out_size;
for(i=0; i<3; i++){
p->frame->data[i]= src[i];
p->frame->linesize[i]= src_stride[i];
}
p->avctx_enc->me_cmp=
p->avctx_enc->me_sub_cmp= FF_CMP_SAD /*| (p->parity ? FF_CMP_ODD : FF_CMP_EVEN)*/;
p->frame->quality= p->qp*FF_QP2LAMBDA;
out_size = avcodec_encode_video(p->avctx_enc, p->outbuf, p->outbuf_size, p->frame);
p->frame_dec = p->avctx_enc->coded_frame;
for(i=0; i<3; i++){
int is_chroma= !!i;
int w= width >>is_chroma;
int h= height>>is_chroma;
int fils= p->frame_dec->linesize[i];
int srcs= src_stride[i];
for(y=0; y<h; y++){
if((y ^ p->parity) & 1){
for(x=0; x<w; x++){
if(x>0 && y>0 && x+1<w && y+1<h){
uint8_t *filp= &p->frame_dec->data[i][x + y*fils];
uint8_t *srcp= &src[i][x + y*srcs];
int diff0=
filp[-1-fils] + 2*filp[-fils] + filp[1-fils]
-srcp[-1-srcs] - 2*srcp[-srcs] - srcp[1-srcs];
int diff1=
+filp[-1+fils] + 2*filp[+fils] + filp[1+fils]
-srcp[-1+srcs] - 2*srcp[+srcs] - srcp[1+srcs];
int temp= filp[0];
#if 0
if((diff0 ^ diff1) > 0){
int mindiff= ABS(diff0) > ABS(diff1) ? diff1 : diff0;
temp-= (mindiff + 2)>>2;
}
#elif 1
if(diff0 + diff1 > 0)
temp-= (diff0 + diff1 - ABS( ABS(diff0) - ABS(diff1) )/2)/8;
else
temp-= (diff0 + diff1 + ABS( ABS(diff0) - ABS(diff1) )/2)/8;
#else
temp-= (diff0 + diff1)/8;
#endif
#if 1
filp[0]=
dst[i][x + y*dst_stride[i]]= temp > 255U ? ~(temp>>31) : temp;
#else
dst[i][x + y*dst_stride[i]]= filp[0];
filp[0]= temp > 255U ? ~(temp>>31) : temp;
#endif
}else
dst[i][x + y*dst_stride[i]]= p->frame_dec->data[i][x + y*fils];
}
}
}
for(y=0; y<h; y++){
if(!((y ^ p->parity) & 1)){
for(x=0; x<w; x++){
#if 1
p->frame_dec->data[i][x + y*fils]=
dst[i][x + y*dst_stride[i]]= src[i][x + y*srcs];
#else
dst[i][x + y*dst_stride[i]]= p->frame_dec->data[i][x + y*fils];
p->frame_dec->data[i][x + y*fils]= src[i][x + y*srcs];
#endif
}
}
}
}
p->parity ^= 1;
}
static int config(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt){
int i;
AVCodec *enc= avcodec_find_encoder(CODEC_ID_SNOW);
for(i=0; i<3; i++){
AVCodecContext *avctx_enc;
#if 0
int is_chroma= !!i;
int w= ((width + 31) & (~31))>>is_chroma;
int h= ((height + 31) & (~31))>>is_chroma;
vf->priv->temp_stride[i]= w;
vf->priv->temp[i]= malloc(vf->priv->temp_stride[i]*h*sizeof(int16_t));
vf->priv->src [i]= malloc(vf->priv->temp_stride[i]*h*sizeof(uint8_t));
#endif
avctx_enc=
vf->priv->avctx_enc= avcodec_alloc_context();
avctx_enc->width = width;
avctx_enc->height = height;
avctx_enc->time_base= (AVRational){1,25}; // meaningless
avctx_enc->gop_size = 300;
avctx_enc->max_b_frames= 0;
avctx_enc->pix_fmt = PIX_FMT_YUV420P;
avctx_enc->flags = CODEC_FLAG_QSCALE | CODEC_FLAG_LOW_DELAY;
avctx_enc->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
avctx_enc->global_quality= 1;
avctx_enc->flags2= CODEC_FLAG2_MEMC_ONLY;
avctx_enc->me_cmp=
avctx_enc->me_sub_cmp= FF_CMP_SAD; //SSE;
avctx_enc->mb_cmp= FF_CMP_SSE;
switch(vf->priv->mode){
case 3:
avctx_enc->refs= 3;
case 2:
avctx_enc->me_method= ME_ITER;
case 1:
avctx_enc->flags |= CODEC_FLAG_4MV;
avctx_enc->dia_size=2;
// avctx_enc->mb_decision = MB_DECISSION_RD;
case 0:
avctx_enc->flags |= CODEC_FLAG_QPEL;
}
avcodec_open(avctx_enc, enc);
}
vf->priv->frame= avcodec_alloc_frame();
vf->priv->outbuf_size= width*height*10;
vf->priv->outbuf= malloc(vf->priv->outbuf_size);
return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
}
static void get_image(struct vf_instance_s* vf, mp_image_t *mpi){
if(mpi->flags&MP_IMGFLAG_PRESERVE) return; // don't change
return; //caused problems, dunno why
// ok, we can do pp in-place (or pp disabled):
vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
mpi->type, mpi->flags | MP_IMGFLAG_READABLE, mpi->width, mpi->height);
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_s* vf, mp_image_t *mpi, double pts){
mp_image_t *dmpi;
if(!(mpi->flags&MP_IMGFLAG_DIRECT)){
// no DR, so get a new image! hope we'll get DR buffer:
dmpi=vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_TEMP,
MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
mpi->width,mpi->height);
vf_clone_mpi_attributes(dmpi, mpi);
}else{
dmpi=vf->dmpi;
}
filter(vf->priv, dmpi->planes, mpi->planes, dmpi->stride, mpi->stride, mpi->w, mpi->h);
return vf_next_put_image(vf,dmpi, pts);
}
static void uninit(struct vf_instance_s* vf){
if(!vf->priv) return;
#if 0
for(i=0; i<3; i++){
if(vf->priv->temp[i]) free(vf->priv->temp[i]);
vf->priv->temp[i]= NULL;
if(vf->priv->src[i]) free(vf->priv->src[i]);
vf->priv->src[i]= NULL;
}
#endif
av_freep(&vf->priv->avctx_enc);
free(vf->priv->outbuf);
free(vf->priv);
vf->priv=NULL;
}
//===========================================================================//
static int query_format(struct vf_instance_s* vf, unsigned int fmt){
switch(fmt){
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
case IMGFMT_Y800:
case IMGFMT_Y8:
return vf_next_query_format(vf,fmt);
}
return 0;
}
static int open(vf_instance_t *vf, char* args){
vf->config=config;
vf->put_image=put_image;
vf->get_image=get_image;
vf->query_format=query_format;
vf->uninit=uninit;
vf->priv=malloc(sizeof(struct vf_priv_s));
memset(vf->priv, 0, sizeof(struct vf_priv_s));
avcodec_init();
avcodec_register_all();
vf->priv->mode=0;
vf->priv->parity= -1;
vf->priv->qp=1;
if (args) sscanf(args, "%d:%d:%d", &vf->priv->mode, &vf->priv->parity, &vf->priv->qp);
return 1;
}
vf_info_t vf_info_mcdeint = {
"motion compensating deinterlacer",
"mcdeint",
"Michael Niedermayer",
"",
open,
NULL
};