[M4IF Technotes] Alpha file

moses woldeselassie moses kampsax.dtu.dk
Mon Oct 21 00:35:00 EDT 2002


hi all
> I'm using MoMuSys-FDIS-V1.0-990812 in SOLARIS platform. But 
> I've a problems with the alpha file:
> 
> 1. when type of alpha channel is 1-Binary
>  - ERROR: can not open Alpha file
> GetBoundingRect: alpha plane without any object!!
> Empty VOP at 3266.67
> 
> 2. Type of alpha channel is 0-Rectangular
> 
> P[  3]      : time=100.000 video_obj_id=0 layer_id=0 quant=4
> P[  3] flds : Y=0 C=0 MVs=0 cbpy=0 mcbpc=0 ilace=0
> P[  3] mblk : inter=396 inter4v=0 intra=0 field=0 skip=0 
> fldDCT=0 P[  3] bits : shape=0 motion=0 texture=5 vop=55 
> total=456 P[  3] PSNR : Y=48.130802 U=Inf V=Inf
> 
>  - ERROR: can not open Alpha file
>                 Performing motion estimation
>                         - OBMC mode ON
>                         - 4 MV per MB mode ON
>                         - unrestricted mode ON
>                 Coding INTER texture
> 
> 3. Additionally, encoder write to the output 
> akiyo_cif_enc.yuv, but it does not write the alpha file.
> 
> ORIG2/akiyo_cif_enc.yuv	{Name of source VOP Y file on disk}
> ORIG2/akiyo_cif_enc.yuv	{Name of source VOP U file on disk}
> ORIG2/akiyo_cif_enc.yuv	{Name of source VOP V file on disk}
> ORIG2/akiyo_cif.seg	{Name of source VOP Alpha file on disk}
> 
> how do I solve this problems
> 
> I'm looking forward to get your help.

Best regards
Moses (Mussie)
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