[Libva] [PATCH] Add 422H support for VA image.

[Xiang, Haihao]

On Fri, 2014-03-21 at 14:31 +0800, zhiwen.wu at intel.com wrote: 
> From: Alex wu <zhiwen.wu at intel.com>
> 
> ---
>  src/i965_drv_video.c |   22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
> 
> diff --git a/src/i965_drv_video.c b/src/i965_drv_video.c
> index 2fe18eb..2f00964 100755
> --- a/src/i965_drv_video.c
> +++ b/src/i965_drv_video.c
> @@ -145,6 +145,8 @@ i965_image_formats_map[I965_MAX_IMAGE_FORMATS + 1] = {
>        { VA_FOURCC('Y','U','Y','2'), VA_LSB_FIRST, 16, } },
>      { I965_SURFACETYPE_YUV,
>        { VA_FOURCC('U','Y','V','Y'), VA_LSB_FIRST, 16, } },
> +    { I965_SURFACETYPE_YUV,
> +      { VA_FOURCC('4','2','2','H'), VA_LSB_FIRST, 16, } },
>      { I965_SURFACETYPE_RGBA,
>        { VA_FOURCC('R','G','B','X'), VA_LSB_FIRST, 32, 24, 0x000000ff, 0x0000ff00, 0x00ff0000 } },
>      { I965_SURFACETYPE_RGBA,
> @@ -2709,6 +2711,16 @@ i965_CreateImage(VADriverContextP ctx,
>          image->offsets[2] = size + size2;
>          image->data_size  = size + 2 * size2;
>          break;
> +    case VA_FOURCC('4','2','2','H'):
> +        image->num_planes = 3;
> +        image->pitches[0] = width;
> +        image->offsets[0] = 0;
> +        image->pitches[1] = width2;

Where is the definition of width2 ?

> +        image->offsets[1] = size;
> +        image->pitches[2] = width2;
> +        image->offsets[2] = size + width2 * height;
> +        image->data_size  = 2 * size;

Should take garbage data into account when calculating
image->offset[xxx] and image->data_size.


> +        break;
>      case VA_FOURCC('N','V','1','2'):
>          image->num_planes = 2;
>          image->pitches[0] = width;
> @@ -3096,6 +3108,16 @@ VAStatus i965_DeriveImage(VADriverContextP ctx,
>          image->offsets[2] = w_pitch * obj_surface->y_cb_offset;
>          break;
>  
> +    case VA_FOURCC('4', '2', '2', 'H'):
> +        image->num_planes = 3;
> +        image->pitches[0] = w_pitch; /* Y */
> +        image->offsets[0] = 0;
> +        image->pitches[1] = obj_surface->cb_cr_pitch; /* U */
> +        image->offsets[1] = w_pitch * obj_surface->y_cb_offset;
> +        image->pitches[2] = obj_surface->cb_cr_pitch; /* V */
> +        image->offsets[2] = w_pitch * obj_surface->y_cr_offset;
> +        break;
> +
>      case VA_FOURCC('N', 'V', '1', '2'):
>          image->num_planes = 2;
>          image->pitches[0] = w_pitch; /* Y */