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msmpeg4v2: initialize mb_type array 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-08-15 05:29:28 +02:00
parent fafd844311
commit aee7b88cc0
1 changed files with 4 additions and 0 deletions
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4
libavcodec/msmpeg4.c
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@ -409,6 +409,7 @@ static int msmpeg4v2_decode_motion(MpegEncContext * s, int pred, int f_code)
static int msmpeg4v12_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
{
int cbp, code, i;
uint32_t * const mb_type_ptr = &s->current_picture.f.mb_type[s->mb_x + s->mb_y*s->mb_stride];
if (s->pict_type == AV_PICTURE_TYPE_P) {
if (s->use_skip_mb_code) {
@ -422,6 +423,7 @@ static int msmpeg4v12_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
s->mv[0][0][0] = 0;
s->mv[0][0][1] = 0;
s->mb_skipped = 1;
*mb_type_ptr = MB_TYPE_SKIP | MB_TYPE_L0 | MB_TYPE_16x16;
return 0;
}
}
@ -470,6 +472,7 @@ static int msmpeg4v12_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
s->mv_type = MV_TYPE_16X16;
s->mv[0][0][0] = mx;
s->mv[0][0][1] = my;
*mb_type_ptr = MB_TYPE_L0 | MB_TYPE_16x16;
} else {
if(s->msmpeg4_version==2){
s->ac_pred = get_bits1(&s->gb);
@ -479,6 +482,7 @@ static int msmpeg4v12_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
cbp|= get_vlc2(&s->gb, ff_h263_cbpy_vlc.table, CBPY_VLC_BITS, 1)<<2; //FIXME check errors
if(s->pict_type==AV_PICTURE_TYPE_P) cbp^=0x3C;
}
*mb_type_ptr = MB_TYPE_INTRA;
}
s->dsp.clear_blocks(s->block[0]);