int (*setup)(vlc_va_t *, void **hw, vlc_fourcc_t *output,
int width, int height);
int (*get)(vlc_va_t *, AVFrame *frame);
void (*release)(vlc_va_t *, AVFrame *frame);
int (*extract)(vlc_va_t *, picture_t *dst, AVFrame *src);
int (*setup)(vlc_va_t *, void **hw, vlc_fourcc_t *output,
int width, int height);
int (*get)(vlc_va_t *, AVFrame *frame);
void (*release)(vlc_va_t *, AVFrame *frame);
int (*extract)(vlc_va_t *, picture_t *dst, AVFrame *src);