Enum openh264::OpenH264API

pub enum OpenH264API {
    Source(APILoader),
    Libloading(APILoader),
}

Convenience wrapper around libloading and source API surfaces.

This type mainly exists to prevent infecting the rest of the OpenH264 crate with generics. The dispatch overhead in contrast to H.264 computation is absolutely negligible.

Variants

Source(APILoader)

Libloading(APILoader)

Implementations

impl DynamicAPI

pub fn from_source() -> DynamicAPI

Creates an OpenH264 API using the built-in source if available.

pub unsafe fn from_blob_path_unchecked( path: impl AsRef<OsStr> ) -> Result<DynamicAPI, Error>

Creates an OpenH264 API via the provided shared library.

In order for this to have any (legal) use, you should download the library from Cisco during installation, and then pass the file-system path in here.

Errors

Can fail if the library could not be loaded, e.g., it does not exist.

Safety

Will cause UB if the provided path does not match the current platform and version.

pub fn from_blob_path(path: impl AsRef<OsStr>) -> Result<DynamicAPI, Error>

Creates an OpenH264 API via the provided shared library if the library is well-known.

In order for this to have any (legal) use, you should download the library from Cisco during installation, and then pass the file-system path in here.

This function also checks the file’s SHA against a list of well-known libraries we can load.

Errors

Can fail if the library could not be loaded, e.g., it does not exist. It can also fail if the file’s SHA does not match against a list of well-known versions we can load.

Trait Implementations

impl API for DynamicAPI

unsafe fn WelsCreateSVCEncoder( &self, ppEncoder: *mut *mut *const ISVCEncoderVtbl ) -> i32

unsafe fn WelsDestroySVCEncoder(&self, pEncoder: *mut *const ISVCEncoderVtbl)

unsafe fn WelsGetDecoderCapability( &self, pDecCapability: *mut TagDecoderCapability ) -> i32

unsafe fn WelsCreateDecoder( &self, ppDecoder: *mut *mut *const ISVCDecoderVtbl ) -> i64

unsafe fn WelsDestroyDecoder(&self, pDecoder: *mut *const ISVCDecoderVtbl)

unsafe fn WelsGetCodecVersion(&self) -> _tagVersion

unsafe fn WelsGetCodecVersionEx(&self, pVersion: *mut _tagVersion)