Constant libspa_sys::SPA_VIDEO_INTERLACE_MODE_FIELDS

pub const SPA_VIDEO_INTERLACE_MODE_FIELDS: spa_video_interlace_mode = 3;

< 2 fields are stored in one buffer, use the frame ID to get access to the required field. For multiview (the ‘views’ property > 1) the fields of view N can be found at frame ID (N * 2) and (N * 2) + 1. Each field has only half the amount of lines as noted in the height property. This mode requires multiple spa_data to describe the fields.