Enum v4l2r::device::queue::generic::GenericQBuffer

pub enum GenericQBuffer<'a, D: Direction> {
    Mmap(QBuffer<'a, D, Vec<MmapHandle>, GenericBufferHandles>),
    User(QBuffer<'a, D, Vec<UserPtrHandle<Vec<u8>>>, GenericBufferHandles>),
    DmaBuf(QBuffer<'a, D, Vec<DmaBufHandle<File>>, GenericBufferHandles>),
}

A QBuffer that holds either MMAP or UserPtr handles, depending on which memory type has been selected for the queue at runtime.

Variants

Mmap(QBuffer<'a, D, Vec<MmapHandle>, GenericBufferHandles>)

User(QBuffer<'a, D, Vec<UserPtrHandle<Vec<u8>>>, GenericBufferHandles>)

DmaBuf(QBuffer<'a, D, Vec<DmaBufHandle<File>>, GenericBufferHandles>)

Trait Implementations

impl CaptureQueueable<GenericBufferHandles> for GenericQBuffer<'_, Capture>

Any CAPTURE GenericQBuffer implements CaptureQueueable.

fn queue_with_handles( self, handles: GenericBufferHandles ) -> QueueResult<(), GenericBufferHandles>

Queue the buffer after binding handles, consuming the object. The number of handles must match the buffer’s expected number of planes.

impl<'a, D: Direction> From<QBuffer<'a, D, Vec<DmaBufHandle<File>>, GenericBufferHandles>> for GenericQBuffer<'a, D>

fn from( qb: QBuffer<'a, D, Vec<DmaBufHandle<File>>, GenericBufferHandles> ) -> Self

Converts to this type from the input type.

impl<'a, D: Direction> From<QBuffer<'a, D, Vec<MmapHandle>, GenericBufferHandles>> for GenericQBuffer<'a, D>

fn from(qb: QBuffer<'a, D, Vec<MmapHandle>, GenericBufferHandles>) -> Self

Converts to this type from the input type.

impl<'a, D: Direction> From<QBuffer<'a, D, Vec<UserPtrHandle<Vec<u8>>>, GenericBufferHandles>> for GenericQBuffer<'a, D>

fn from( qb: QBuffer<'a, D, Vec<UserPtrHandle<Vec<u8>>>, GenericBufferHandles> ) -> Self

Converts to this type from the input type.

impl OutputQueueable<GenericBufferHandles> for GenericQBuffer<'_, Output>

Any OUTPUT GenericQBuffer implements OutputQueueable.

fn queue_with_handles( self, handles: GenericBufferHandles, bytes_used: &[usize] ) -> QueueResult<(), GenericBufferHandles>

Queue the buffer after binding handles, consuming the object. The number of handles must match the buffer’s expected number of planes. bytes_used must be a slice with as many slices as there are handles, describing the amount of useful data in each of them.