delta_au
static int delta_mjpeg_decode(struct delta_ctx *pctx, struct delta_au *pau)
struct delta_au *au = to_au(vbuf);
struct delta_au *au;
q->buf_struct_size = sizeof(struct delta_au);
#define to_au(__vbuf) container_of(__vbuf, struct delta_au, vbuf)
static void dump_au(struct delta_ctx *ctx, struct delta_au *au)
struct delta_au *au;
static void delta_au_done(struct delta_ctx *ctx, struct delta_au *au, int err)
int (*decode)(struct delta_ctx *ctx, struct delta_au *au);