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-vf pp7 overblurs still parts of the image, which

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have qp=1, and qp becomes zero after the >> 1. Modifying the threshold
table for qp=0 so it copies the qp=1 case seems to fix the problem.
Patch by Jindrich Makovicka % makovick AH gmail P com %
Original thread:
Date: Jul 22, 2006 2:55 PM
Subject: [MPlayer-dev-eng] [PATCH] -vf pp7 artifacting in still MPEG2 images


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@19170 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
gpoirier 2006-07-23 13:38:20 +00:00
parent f5b338b852
commit e746e16d88
1 changed files with 2 additions and 1 deletions
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3
libmpcodecs/vf_pp7.c
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@ -38,6 +38,7 @@
#include "libvo/fastmemcpy.h"
#define XMIN(a,b) ((a) < (b) ? (a) : (b))
#define XMAX(a,b) ((a) > (b) ? (a) : (b))
typedef short DCTELEM;
@ -218,7 +219,7 @@ static void init_thres2(void){
for(qp=0; qp<99; qp++){
for(i=0; i<16; i++){
thres2[qp][i]= ((i&1)?SN2:SN0) * ((i&4)?SN2:SN0) * qp * (1<<2) - 1 - bias;
thres2[qp][i]= ((i&1)?SN2:SN0) * ((i&4)?SN2:SN0) * XMAX(1,qp) * (1<<2) - 1 - bias;
}
}
}