use std::ptr;
use glib::{prelude::*, translate::*};
use gst::subclass::prelude::*;
use crate::BaseSink;
pub trait BaseSinkImpl: BaseSinkImplExt + ElementImpl {
fn start(&self) -> Result<(), gst::ErrorMessage> {
self.parent_start()
}
fn stop(&self) -> Result<(), gst::ErrorMessage> {
self.parent_stop()
}
fn render(&self, buffer: &gst::Buffer) -> Result<gst::FlowSuccess, gst::FlowError> {
self.parent_render(buffer)
}
fn prepare(&self, buffer: &gst::Buffer) -> Result<gst::FlowSuccess, gst::FlowError> {
self.parent_prepare(buffer)
}
fn render_list(&self, list: &gst::BufferList) -> Result<gst::FlowSuccess, gst::FlowError> {
self.parent_render_list(list)
}
fn prepare_list(&self, list: &gst::BufferList) -> Result<gst::FlowSuccess, gst::FlowError> {
self.parent_prepare_list(list)
}
fn query(&self, query: &mut gst::QueryRef) -> bool {
BaseSinkImplExt::parent_query(self, query)
}
fn event(&self, event: gst::Event) -> bool {
self.parent_event(event)
}
fn caps(&self, filter: Option<&gst::Caps>) -> Option<gst::Caps> {
self.parent_caps(filter)
}
fn set_caps(&self, caps: &gst::Caps) -> Result<(), gst::LoggableError> {
self.parent_set_caps(caps)
}
fn fixate(&self, caps: gst::Caps) -> gst::Caps {
self.parent_fixate(caps)
}
fn unlock(&self) -> Result<(), gst::ErrorMessage> {
self.parent_unlock()
}
fn unlock_stop(&self) -> Result<(), gst::ErrorMessage> {
self.parent_unlock_stop()
}
fn propose_allocation(
&self,
query: &mut gst::query::Allocation,
) -> Result<(), gst::LoggableError> {
self.parent_propose_allocation(query)
}
}
mod sealed {
pub trait Sealed {}
impl<T: super::BaseSinkImplExt> Sealed for T {}
}
pub trait BaseSinkImplExt: sealed::Sealed + ObjectSubclass {
fn parent_start(&self) -> Result<(), gst::ErrorMessage> {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBaseSinkClass;
(*parent_class)
.start
.map(|f| {
if from_glib(f(self.obj().unsafe_cast_ref::<BaseSink>().to_glib_none().0)) {
Ok(())
} else {
Err(gst::error_msg!(
gst::CoreError::StateChange,
["Parent function `start` failed"]
))
}
})
.unwrap_or(Ok(()))
}
}
fn parent_stop(&self) -> Result<(), gst::ErrorMessage> {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBaseSinkClass;
(*parent_class)
.stop
.map(|f| {
if from_glib(f(self.obj().unsafe_cast_ref::<BaseSink>().to_glib_none().0)) {
Ok(())
} else {
Err(gst::error_msg!(
gst::CoreError::StateChange,
["Parent function `stop` failed"]
))
}
})
.unwrap_or(Ok(()))
}
}
fn parent_render(&self, buffer: &gst::Buffer) -> Result<gst::FlowSuccess, gst::FlowError> {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBaseSinkClass;
(*parent_class)
.render
.map(|f| {
try_from_glib(f(
self.obj().unsafe_cast_ref::<BaseSink>().to_glib_none().0,
buffer.to_glib_none().0,
))
})
.unwrap_or(Ok(gst::FlowSuccess::Ok))
}
}
fn parent_prepare(&self, buffer: &gst::Buffer) -> Result<gst::FlowSuccess, gst::FlowError> {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBaseSinkClass;
(*parent_class)
.prepare
.map(|f| {
try_from_glib(f(
self.obj().unsafe_cast_ref::<BaseSink>().to_glib_none().0,
buffer.to_glib_none().0,
))
})
.unwrap_or(Ok(gst::FlowSuccess::Ok))
}
}
fn parent_render_list(
&self,
list: &gst::BufferList,
) -> Result<gst::FlowSuccess, gst::FlowError>;
fn parent_prepare_list(
&self,
list: &gst::BufferList,
) -> Result<gst::FlowSuccess, gst::FlowError>;
fn parent_query(&self, query: &mut gst::QueryRef) -> bool {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBaseSinkClass;
(*parent_class)
.query
.map(|f| {
from_glib(f(
self.obj().unsafe_cast_ref::<BaseSink>().to_glib_none().0,
query.as_mut_ptr(),
))
})
.unwrap_or(false)
}
}
fn parent_event(&self, event: gst::Event) -> bool {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBaseSinkClass;
(*parent_class)
.event
.map(|f| {
from_glib(f(
self.obj().unsafe_cast_ref::<BaseSink>().to_glib_none().0,
event.into_glib_ptr(),
))
})
.unwrap_or(true)
}
}
fn parent_caps(&self, filter: Option<&gst::Caps>) -> Option<gst::Caps> {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBaseSinkClass;
(*parent_class)
.get_caps
.map(|f| {
from_glib_full(f(
self.obj().unsafe_cast_ref::<BaseSink>().to_glib_none().0,
filter.to_glib_none().0,
))
})
.unwrap_or(None)
}
}
fn parent_set_caps(&self, caps: &gst::Caps) -> Result<(), gst::LoggableError> {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBaseSinkClass;
(*parent_class)
.set_caps
.map(|f| {
gst::result_from_gboolean!(
f(
self.obj().unsafe_cast_ref::<BaseSink>().to_glib_none().0,
caps.to_glib_none().0
),
gst::CAT_RUST,
"Parent function `set_caps` failed"
)
})
.unwrap_or(Ok(()))
}
}
fn parent_fixate(&self, caps: gst::Caps) -> gst::Caps {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBaseSinkClass;
match (*parent_class).fixate {
Some(fixate) => from_glib_full(fixate(
self.obj().unsafe_cast_ref::<BaseSink>().to_glib_none().0,
caps.into_glib_ptr(),
)),
None => caps,
}
}
}
fn parent_unlock(&self) -> Result<(), gst::ErrorMessage> {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBaseSinkClass;
(*parent_class)
.unlock
.map(|f| {
if from_glib(f(self.obj().unsafe_cast_ref::<BaseSink>().to_glib_none().0)) {
Ok(())
} else {
Err(gst::error_msg!(
gst::CoreError::Failed,
["Parent function `unlock` failed"]
))
}
})
.unwrap_or(Ok(()))
}
}
fn parent_unlock_stop(&self) -> Result<(), gst::ErrorMessage> {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBaseSinkClass;
(*parent_class)
.unlock_stop
.map(|f| {
if from_glib(f(self.obj().unsafe_cast_ref::<BaseSink>().to_glib_none().0)) {
Ok(())
} else {
Err(gst::error_msg!(
gst::CoreError::Failed,
["Parent function `unlock_stop` failed"]
))
}
})
.unwrap_or(Ok(()))
}
}
fn parent_propose_allocation(
&self,
query: &mut gst::query::Allocation,
) -> Result<(), gst::LoggableError> {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBaseSinkClass;
(*parent_class)
.propose_allocation
.map(|f| {
gst::result_from_gboolean!(
f(
self.obj().unsafe_cast_ref::<BaseSink>().to_glib_none().0,
query.as_mut_ptr(),
),
gst::CAT_RUST,
"Parent function `propose_allocation` failed",
)
})
.unwrap_or(Ok(()))
}
}
}
impl<T: BaseSinkImpl> BaseSinkImplExt for T {
fn parent_render_list(
&self,
list: &gst::BufferList,
) -> Result<gst::FlowSuccess, gst::FlowError> {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBaseSinkClass;
(*parent_class)
.render_list
.map(|f| {
try_from_glib(f(
self.obj().unsafe_cast_ref::<BaseSink>().to_glib_none().0,
list.to_glib_none().0,
))
})
.unwrap_or_else(|| {
for buffer in list.iter() {
self.render(&from_glib_borrow(buffer.as_ptr()))?;
}
Ok(gst::FlowSuccess::Ok)
})
}
}
fn parent_prepare_list(
&self,
list: &gst::BufferList,
) -> Result<gst::FlowSuccess, gst::FlowError> {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBaseSinkClass;
(*parent_class)
.prepare_list
.map(|f| {
try_from_glib(f(
self.obj().unsafe_cast_ref::<BaseSink>().to_glib_none().0,
list.to_glib_none().0,
))
})
.unwrap_or_else(|| {
for buffer in list.iter() {
self.prepare(&from_glib_borrow(buffer.as_ptr()))?;
}
Ok(gst::FlowSuccess::Ok)
})
}
}
}
unsafe impl<T: BaseSinkImpl> IsSubclassable<T> for BaseSink {
fn class_init(klass: &mut glib::Class<Self>) {
Self::parent_class_init::<T>(klass);
let klass = klass.as_mut();
klass.start = Some(base_sink_start::<T>);
klass.stop = Some(base_sink_stop::<T>);
klass.render = Some(base_sink_render::<T>);
klass.render_list = Some(base_sink_render_list::<T>);
klass.prepare = Some(base_sink_prepare::<T>);
klass.prepare_list = Some(base_sink_prepare_list::<T>);
klass.query = Some(base_sink_query::<T>);
klass.event = Some(base_sink_event::<T>);
klass.get_caps = Some(base_sink_get_caps::<T>);
klass.set_caps = Some(base_sink_set_caps::<T>);
klass.fixate = Some(base_sink_fixate::<T>);
klass.unlock = Some(base_sink_unlock::<T>);
klass.unlock_stop = Some(base_sink_unlock_stop::<T>);
klass.propose_allocation = Some(base_sink_propose_allocation::<T>);
}
}
unsafe extern "C" fn base_sink_start<T: BaseSinkImpl>(
ptr: *mut ffi::GstBaseSink,
) -> glib::ffi::gboolean {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
gst::panic_to_error!(imp, false, {
match imp.start() {
Ok(()) => true,
Err(err) => {
imp.post_error_message(err);
false
}
}
})
.into_glib()
}
unsafe extern "C" fn base_sink_stop<T: BaseSinkImpl>(
ptr: *mut ffi::GstBaseSink,
) -> glib::ffi::gboolean {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
gst::panic_to_error!(imp, false, {
match imp.stop() {
Ok(()) => true,
Err(err) => {
imp.post_error_message(err);
false
}
}
})
.into_glib()
}
unsafe extern "C" fn base_sink_render<T: BaseSinkImpl>(
ptr: *mut ffi::GstBaseSink,
buffer: *mut gst::ffi::GstBuffer,
) -> gst::ffi::GstFlowReturn {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
let buffer = from_glib_borrow(buffer);
gst::panic_to_error!(imp, gst::FlowReturn::Error, { imp.render(&buffer).into() }).into_glib()
}
unsafe extern "C" fn base_sink_prepare<T: BaseSinkImpl>(
ptr: *mut ffi::GstBaseSink,
buffer: *mut gst::ffi::GstBuffer,
) -> gst::ffi::GstFlowReturn {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
let buffer = from_glib_borrow(buffer);
gst::panic_to_error!(imp, gst::FlowReturn::Error, { imp.prepare(&buffer).into() }).into_glib()
}
unsafe extern "C" fn base_sink_render_list<T: BaseSinkImpl>(
ptr: *mut ffi::GstBaseSink,
list: *mut gst::ffi::GstBufferList,
) -> gst::ffi::GstFlowReturn {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
let list = from_glib_borrow(list);
gst::panic_to_error!(imp, gst::FlowReturn::Error, {
imp.render_list(&list).into()
})
.into_glib()
}
unsafe extern "C" fn base_sink_prepare_list<T: BaseSinkImpl>(
ptr: *mut ffi::GstBaseSink,
list: *mut gst::ffi::GstBufferList,
) -> gst::ffi::GstFlowReturn {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
let list = from_glib_borrow(list);
gst::panic_to_error!(imp, gst::FlowReturn::Error, {
imp.prepare_list(&list).into()
})
.into_glib()
}
unsafe extern "C" fn base_sink_query<T: BaseSinkImpl>(
ptr: *mut ffi::GstBaseSink,
query_ptr: *mut gst::ffi::GstQuery,
) -> glib::ffi::gboolean {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
let query = gst::QueryRef::from_mut_ptr(query_ptr);
gst::panic_to_error!(imp, false, { BaseSinkImpl::query(imp, query) }).into_glib()
}
unsafe extern "C" fn base_sink_event<T: BaseSinkImpl>(
ptr: *mut ffi::GstBaseSink,
event_ptr: *mut gst::ffi::GstEvent,
) -> glib::ffi::gboolean {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
gst::panic_to_error!(imp, false, { imp.event(from_glib_full(event_ptr)) }).into_glib()
}
unsafe extern "C" fn base_sink_get_caps<T: BaseSinkImpl>(
ptr: *mut ffi::GstBaseSink,
filter: *mut gst::ffi::GstCaps,
) -> *mut gst::ffi::GstCaps {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
let filter = Option::<gst::Caps>::from_glib_borrow(filter);
gst::panic_to_error!(imp, None, { imp.caps(filter.as_ref().as_ref()) })
.map(|caps| caps.into_glib_ptr())
.unwrap_or(ptr::null_mut())
}
unsafe extern "C" fn base_sink_set_caps<T: BaseSinkImpl>(
ptr: *mut ffi::GstBaseSink,
caps: *mut gst::ffi::GstCaps,
) -> glib::ffi::gboolean {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
let caps = from_glib_borrow(caps);
gst::panic_to_error!(imp, false, {
match imp.set_caps(&caps) {
Ok(()) => true,
Err(err) => {
err.log_with_imp(imp);
false
}
}
})
.into_glib()
}
unsafe extern "C" fn base_sink_fixate<T: BaseSinkImpl>(
ptr: *mut ffi::GstBaseSink,
caps: *mut gst::ffi::GstCaps,
) -> *mut gst::ffi::GstCaps {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
let caps = from_glib_full(caps);
gst::panic_to_error!(imp, gst::Caps::new_empty(), { imp.fixate(caps) }).into_glib_ptr()
}
unsafe extern "C" fn base_sink_unlock<T: BaseSinkImpl>(
ptr: *mut ffi::GstBaseSink,
) -> glib::ffi::gboolean {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
gst::panic_to_error!(imp, false, {
match imp.unlock() {
Ok(()) => true,
Err(err) => {
imp.post_error_message(err);
false
}
}
})
.into_glib()
}
unsafe extern "C" fn base_sink_unlock_stop<T: BaseSinkImpl>(
ptr: *mut ffi::GstBaseSink,
) -> glib::ffi::gboolean {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
gst::panic_to_error!(imp, false, {
match imp.unlock_stop() {
Ok(()) => true,
Err(err) => {
imp.post_error_message(err);
false
}
}
})
.into_glib()
}
unsafe extern "C" fn base_sink_propose_allocation<T: BaseSinkImpl>(
ptr: *mut ffi::GstBaseSink,
query: *mut gst::ffi::GstQuery,
) -> glib::ffi::gboolean {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
let query = match gst::QueryRef::from_mut_ptr(query).view_mut() {
gst::QueryViewMut::Allocation(allocation) => allocation,
_ => unreachable!(),
};
gst::panic_to_error!(imp, false, {
match imp.propose_allocation(query) {
Ok(()) => true,
Err(err) => {
err.log_with_imp(imp);
false
}
}
})
.into_glib()
}