Trait gstreamer_base::prelude::BaseSrcExtManual

pub trait BaseSrcExtManual:
    Sealed
    + IsA<BaseSrc>
    + 'static {
    // Provided methods
    fn allocator(&self) -> (Option<Allocator>, AllocationParams) { ... }
    fn segment(&self) -> Segment { ... }
    fn query_latency(
        &self,
    ) -> Result<(bool, Option<ClockTime>, Option<ClockTime>), BoolError> { ... }
    fn src_pad(&self) -> &Pad { ... }
}

Provided Methods

fn allocator(&self) -> (Option<Allocator>, AllocationParams)

Lets BaseSrc sub-classes to know the memory allocator used by the base class and its params.

Unref the allocator after usage.

Returns

allocator

the gst::Allocator used

params

the gst::AllocationParams of allocator

fn segment(&self) -> Segment

fn query_latency( &self, ) -> Result<(bool, Option<ClockTime>, Option<ClockTime>), BoolError>

Query the source for the latency parameters. live will be true when self is configured as a live source. min_latency and max_latency will be set to the difference between the running time and the timestamp of the first buffer.

This function is mostly used by subclasses.

Returns

true if the query succeeded.

live

if the source is live

min_latency

the min latency of the source

max_latency

the max latency of the source

fn src_pad(&self) -> &Pad

Object Safety

This trait is not object safe.

Implementors

impl<O: IsA<BaseSrc>> BaseSrcExtManual for O