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Fix [soc:eoc] stubs.

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Slightly modified patch from Otvos Attila oattila at chello dot hu



git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24119 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
voroshil 2007-08-22 14:01:57 +00:00
parent ff4232804d
commit 65e0b2a95e
1 changed files with 10 additions and 6 deletions
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16
stream/tvi_vbi.c
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@ -22,6 +22,7 @@
* Based on Attila Otvos' teletext patch, Michael Niedermayer's
* proof-of-concept teletext capture utility and some parts
* (decode_raw_line_runin,pll_add,pll_reset) of MythTV project.
* Code for calculating [soc:eoc] is based on aletv of Edgar Toernig.
*
*
* Some implementation details:
@ -277,10 +278,13 @@ static void init_vbi_consts(priv_vbi_t* priv){
}
priv->bpb=(priv->ptsp->sampling_rate/6937500.0)*ONE_FIXP+0.5;
//FIXME: STUBS!!!!
priv->soc=0;
priv->eoc=92;
//END STUBS!!!
priv->soc=FFMAX(9.2e-6*priv->ptsp->sampling_rate-priv->ptsp->offset, 0);
priv->eoc=FFMIN(12.9e-6*priv->ptsp->sampling_rate-priv->ptsp->offset,
priv->ptsp->samples_per_line-43*8*priv->bpb/ONE_FIXP);
if (priv->eoc - priv->soc<16*priv->bpb/ONE_FIXP){ // invalid [soc:eoc]
priv->soc=0;
priv->eoc=92;
};
priv->bp8bl=0.97*8*priv->bpb/ONE_FIXP; // -3% tolerance
priv->bp8bh=1.03*8*priv->bpb/ONE_FIXP; // +3% tolerance
}
@ -913,8 +917,8 @@ static int decode_raw_line_runin(priv_vbi_t* priv,unsigned char* buf,unsigned ch
int thr=0; //threshold
//stubs
int soc=0;
int eoc=92;
int soc=priv->soc;
int eoc=priv->eoc;
for(i=soc;i<eoc;i++)
dt[i]=buf[i+priv->bpb/ONE_FIXP]-buf[i]; // amplifies the edges best.