[Libva] the position in x-direction of the first mb

[Zou, Nanhai]

Yes, 
This should work for us.

Thanks
Zou Nan hai

>>-----Original Message-----
>>From: libva-bounces at lists.freedesktop.org
>>[mailto:libva-bounces at lists.freedesktop.org] On Behalf Of Yuan, Shengquan
>>Sent: 2009年9月10日 10:19
>>To: Xiang, Haihao
>>Cc: Libva at lists.freedesktop.org
>>Subject: Re: [Libva] the position in x-direction of the first mb
>>
>>2009/9/9 Bian, Jonathan <jonathan.bian at intel.com>:
>>> Perhaps we can use the upper 16 bits in "slice_vertical_position" for the
>>position in x-direction to maintain compatibility with existing apps.
>>>
>>
>>Then, Haihao, is this change workable for you?
>>
>>/* MPEG-2 Slice Parameter Buffer */
>>typedef struct _VASliceParameterBufferMPEG2
>>{
>>    unsigned int slice_data_size;/* number of bytes in the slice data
>>buffer for this slice */
>>    unsigned int slice_data_offset;/* the offset to the first byte of
>>slice data */
>>    unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
>>    unsigned int macroblock_offset;/* the offset to the first bit of
>>MB from the first byte of slice data */
>>    unsigned int slice_vertical_position;
>>    int quantiser_scale_code;
>>    int intra_slice_flag;
>>} VASliceParameterBufferMPEG2;
>>==>
>>/* MPEG-2 Slice Parameter Buffer */
>>typedef struct _VASliceParameterBufferMPEG2
>>{
>>    unsigned int slice_data_size;/* number of bytes in the slice data
>>buffer for this slice */
>>    unsigned int slice_data_offset;/* the offset to the first byte of
>>slice data */
>>    unsigned int slice_data_flag; /* see VA_SLICE_DATA_FLAG_XXX defintions */
>>    unsigned int macroblock_offset;/* the offset to the first bit of
>>MB from the first byte of slice data */
>>    unsigned short slice_horizontal_position;
>>    unsigned short slice_vertical_position;
>>    int quantiser_scale_code;
>>    int intra_slice_flag;
>>} VASliceParameterBufferMPEG2;
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