Convert the values of drm_info into a #GstCaps. Please note that the
caps returned will be a dma drm caps which sets format field to DMA_DRM,
and contains a new drm-format field. The value of drm-format field is
composed of a drm fourcc and a modifier, such as NV12:0x0100000000000002.
Convert the values of drm_info into a #GstCaps. Please note that the caps returned will be a dma drm caps which sets format field to DMA_DRM, and contains a new drm-format field. The value of drm-format field is composed of a drm fourcc and a modifier, such as NV12:0x0100000000000002.