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use std::any::Any;
use std::rc::Rc;
use super::{Context, Id};
use ffi::*;
use media;
pub struct Parameters {
ptr: *mut AVCodecParameters,
owner: Option<Rc<dyn Any>>,
}
unsafe impl Send for Parameters {}
impl Parameters {
pub unsafe fn wrap(ptr: *mut AVCodecParameters, owner: Option<Rc<dyn Any>>) -> Self {
Parameters { ptr, owner }
}
pub unsafe fn as_ptr(&self) -> *const AVCodecParameters {
self.ptr as *const _
}
pub unsafe fn as_mut_ptr(&mut self) -> *mut AVCodecParameters {
self.ptr
}
}
impl Parameters {
pub fn new() -> Self {
unsafe {
Parameters {
ptr: avcodec_parameters_alloc(),
owner: None,
}
}
}
pub fn medium(&self) -> media::Type {
unsafe { media::Type::from((*self.as_ptr()).codec_type) }
}
pub fn id(&self) -> Id {
unsafe { Id::from((*self.as_ptr()).codec_id) }
}
}
impl Default for Parameters {
fn default() -> Self {
Self::new()
}
}
impl Drop for Parameters {
fn drop(&mut self) {
unsafe {
if self.owner.is_none() {
avcodec_parameters_free(&mut self.as_mut_ptr());
}
}
}
}
impl Clone for Parameters {
fn clone(&self) -> Self {
let mut ctx = Parameters::new();
ctx.clone_from(self);
ctx
}
fn clone_from(&mut self, source: &Self) {
unsafe {
avcodec_parameters_copy(self.as_mut_ptr(), source.as_ptr());
}
}
}
impl<C: AsRef<Context>> From<C> for Parameters {
fn from(context: C) -> Parameters {
let mut parameters = Parameters::new();
let context = context.as_ref();
unsafe {
avcodec_parameters_from_context(parameters.as_mut_ptr(), context.as_ptr());
}
parameters
}
}