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"added support for an unusual construct at the start of some

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slices", says walken :-).
This commit is contained in:
Christophe Massiot 2001-10-01 10:27:17 +00:00
parent 5377385dcf
commit d8797a4827
1 changed files with 16 additions and 2 deletions
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18
src/video_decoder/vpar_blocks.c
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@ -2,7 +2,7 @@
* vpar_blocks.c : blocks parsing
*****************************************************************************
* Copyright (C) 1999, 2000 VideoLAN
* $Id: vpar_blocks.c,v 1.10 2001/09/06 13:16:26 massiot Exp $
* $Id: vpar_blocks.c,v 1.11 2001/10/01 10:27:17 massiot Exp $
*
* Authors: Michel Lespinasse <walken@zoy.org>
* Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
@ -1877,6 +1877,21 @@ static __inline__ void ParseSlice( vpar_thread_t * p_vpar,
p_vpar->mb.i_offset = MacroblockAddressIncrement( p_vpar ) << 4;
while( (int)(p_vpar->mb.i_offset - p_vpar->sequence.i_width) >= 0 )
{
/* Unusual construct at the start of some slices. Jump one line. */
p_vpar->mb.i_offset -= p_vpar->sequence.i_width;
p_dest[0] += i_width * 16;
p_dest[1] += i_width * 4;
p_dest[2] += i_width * 4;
p_f_motion->pppi_ref[0][0] += i_width * 16;
p_f_motion->pppi_ref[0][1] += i_width * 4;
p_f_motion->pppi_ref[0][2] += i_width * 4;
p_f_motion->pppi_ref[1][0] += i_width * 16;
p_f_motion->pppi_ref[1][1] += i_width * 4;
p_f_motion->pppi_ref[1][2] += i_width * 4;
}
for( ; ; )
{
/* Decode macroblocks. */
@ -2006,7 +2021,6 @@ static __inline__ void ParseSlice( vpar_thread_t * p_vpar,
p_f_motion->ppi_pmv[0][0] = p_f_motion->ppi_pmv[0][1] = 0;
p_f_motion->ppi_pmv[1][0] = p_f_motion->ppi_pmv[1][1] = 0;
MOTION( MotionFieldZero, MB_MOTION_FORWARD );
}
}