Project: Theora

Revision: 15215

Author: tterribe

Date: 28 Aug 2008 14:04:15

• /trunk/theora/lib/dec/state.c

  ......	@@ -831,13 +831,13 @@
  831	831	ogg_int16_t p;
  832	832	/*Why is the iquant product rounded in this case and no others?
  833	833	Who knows.*/
  834		p=(ogg_int16_t)((ogg_int32_t)_frag->dc*_dc_iquant+15>>5);
  	834	p=(ogg_int16_t)((ogg_int32_t)(ogg_int16_t)_frag->dc*_dc_iquant+15>>5);
  835	835	/*LOOP VECTORIZES.*/
  836	836	for(ci=0;ci<64;ci++)res_buf[ci]=p;
  837	837	}
  838	838	else{
  839	839	/*First, dequantize the coefficients.*/
  840		dct_buf[0]=(ogg_int16_t)((ogg_int32_t)_frag->dc*_dc_iquant);
  	840	dct_buf[0]=(ogg_int16_t)((ogg_int32_t)(ogg_int16_t)_frag->dc*_dc_iquant);
  841	841	for(zzi=1;zzi<_ncoefs;zzi++){
  842	842	int ci;
  843	843	ci=OC_FZIG_ZAG[zzi];

• /trunk/theora/lib/dec/fragment.c

  ......	@@ -179,7 +179,7 @@
  179	179	pflag=1<<i;
  180	180	if((BC_MASK[bc]&pflag)&&predfr[i]->coded&&
  181	181	OC_FRAME_FOR_MODE[predfr[i]->mbmode]==pred_frame){
  182		p[np++]=predfr[i]->dc;
  	182	p[np++]=(ogg_int16_t)predfr[i]->dc;
  183	183	pflags|=pflag;
  184	184	}
  185	185	}

• /trunk/theora/lib/internal.h

  ......	@@ -213,7 +213,10 @@
  213	213	unsigned qi:6;
  214	214	/*The mode of the macroblock this fragment belongs to.*/
  215	215	int mbmode:8;
  216		/*The prediction-corrected DC component.*/
  	216	/*The prediction-corrected DC component.
  	217	Note that some compilers (e.g., Solaris's) will ignore the signedness of
  	218	the type and treat this value as unsigned always, so it will need to be
  	219	casted before being used.*/
  217	220	int dc:16;
  218	221	/*A pointer to the portion of an image covered by this fragment in several
  219	222	images.