mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer-rs.git
synced 2024-05-19 08:48:09 +00:00
1033 lines
33 KiB
Rust
1033 lines
33 KiB
Rust
// Take a look at the license at the top of the repository in the LICENSE file.
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use glib::prelude::*;
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use glib::subclass::prelude::*;
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use glib::translate::*;
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use gst::subclass::prelude::*;
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use std::mem;
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use std::ptr;
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use crate::BaseSrc;
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#[derive(Debug)]
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pub enum CreateSuccess {
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FilledBuffer,
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NewBuffer(gst::Buffer),
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}
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pub trait BaseSrcImpl: BaseSrcImplExt + ElementImpl {
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fn start(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage> {
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self.parent_start(element)
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}
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fn stop(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage> {
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self.parent_stop(element)
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}
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fn is_seekable(&self, element: &Self::Type) -> bool {
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self.parent_is_seekable(element)
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}
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fn get_size(&self, element: &Self::Type) -> Option<u64> {
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self.parent_get_size(element)
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}
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fn get_times(
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&self,
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element: &Self::Type,
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buffer: &gst::BufferRef,
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) -> (gst::ClockTime, gst::ClockTime) {
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self.parent_get_times(element, buffer)
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}
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fn fill(
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&self,
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element: &Self::Type,
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offset: u64,
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length: u32,
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buffer: &mut gst::BufferRef,
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) -> Result<gst::FlowSuccess, gst::FlowError> {
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self.parent_fill(element, offset, length, buffer)
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}
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fn alloc(
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&self,
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element: &Self::Type,
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offset: u64,
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length: u32,
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) -> Result<gst::Buffer, gst::FlowError> {
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self.parent_alloc(element, offset, length)
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}
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fn create(
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&self,
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element: &Self::Type,
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offset: u64,
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buffer: Option<&mut gst::BufferRef>,
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length: u32,
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) -> Result<CreateSuccess, gst::FlowError> {
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self.parent_create(element, offset, buffer, length)
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}
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fn do_seek(&self, element: &Self::Type, segment: &mut gst::Segment) -> bool {
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self.parent_do_seek(element, segment)
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}
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fn query(&self, element: &Self::Type, query: &mut gst::QueryRef) -> bool {
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BaseSrcImplExt::parent_query(self, element, query)
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}
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fn event(&self, element: &Self::Type, event: &gst::Event) -> bool {
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self.parent_event(element, event)
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}
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fn get_caps(&self, element: &Self::Type, filter: Option<&gst::Caps>) -> Option<gst::Caps> {
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self.parent_get_caps(element, filter)
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}
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fn negotiate(&self, element: &Self::Type) -> Result<(), gst::LoggableError> {
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self.parent_negotiate(element)
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}
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fn set_caps(&self, element: &Self::Type, caps: &gst::Caps) -> Result<(), gst::LoggableError> {
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self.parent_set_caps(element, caps)
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}
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fn fixate(&self, element: &Self::Type, caps: gst::Caps) -> gst::Caps {
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self.parent_fixate(element, caps)
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}
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fn unlock(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage> {
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self.parent_unlock(element)
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}
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fn unlock_stop(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage> {
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self.parent_unlock_stop(element)
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}
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}
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pub trait BaseSrcImplExt: ObjectSubclass {
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fn parent_start(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage>;
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fn parent_stop(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage>;
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fn parent_is_seekable(&self, element: &Self::Type) -> bool;
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fn parent_get_size(&self, element: &Self::Type) -> Option<u64>;
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fn parent_get_times(
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&self,
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element: &Self::Type,
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buffer: &gst::BufferRef,
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) -> (gst::ClockTime, gst::ClockTime);
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fn parent_fill(
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&self,
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element: &Self::Type,
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offset: u64,
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length: u32,
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buffer: &mut gst::BufferRef,
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) -> Result<gst::FlowSuccess, gst::FlowError>;
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fn parent_alloc(
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&self,
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element: &Self::Type,
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offset: u64,
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length: u32,
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) -> Result<gst::Buffer, gst::FlowError>;
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fn parent_create(
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&self,
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element: &Self::Type,
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offset: u64,
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buffer: Option<&mut gst::BufferRef>,
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length: u32,
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) -> Result<CreateSuccess, gst::FlowError>;
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fn parent_do_seek(&self, element: &Self::Type, segment: &mut gst::Segment) -> bool;
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fn parent_query(&self, element: &Self::Type, query: &mut gst::QueryRef) -> bool;
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fn parent_event(&self, element: &Self::Type, event: &gst::Event) -> bool;
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fn parent_get_caps(
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&self,
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element: &Self::Type,
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filter: Option<&gst::Caps>,
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) -> Option<gst::Caps>;
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fn parent_negotiate(&self, element: &Self::Type) -> Result<(), gst::LoggableError>;
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fn parent_set_caps(
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&self,
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element: &Self::Type,
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caps: &gst::Caps,
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) -> Result<(), gst::LoggableError>;
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fn parent_fixate(&self, element: &Self::Type, caps: gst::Caps) -> gst::Caps;
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fn parent_unlock(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage>;
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fn parent_unlock_stop(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage>;
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}
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impl<T: BaseSrcImpl> BaseSrcImplExt for T {
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fn parent_start(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage> {
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unsafe {
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let data = T::type_data();
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
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(*parent_class)
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.start
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.map(|f| {
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if from_glib(f(element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0)) {
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Ok(())
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} else {
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Err(gst::gst_error_msg!(
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gst::CoreError::StateChange,
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["Parent function `start` failed"]
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))
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}
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})
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.unwrap_or(Ok(()))
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}
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}
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fn parent_stop(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage> {
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unsafe {
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let data = T::type_data();
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
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(*parent_class)
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.stop
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.map(|f| {
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if from_glib(f(element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0)) {
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Ok(())
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} else {
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Err(gst::gst_error_msg!(
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gst::CoreError::StateChange,
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["Parent function `stop` failed"]
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))
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}
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})
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.unwrap_or(Ok(()))
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}
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}
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fn parent_is_seekable(&self, element: &Self::Type) -> bool {
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unsafe {
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let data = T::type_data();
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
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(*parent_class)
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.is_seekable
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.map(|f| from_glib(f(element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0)))
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.unwrap_or(false)
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}
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}
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fn parent_get_size(&self, element: &Self::Type) -> Option<u64> {
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unsafe {
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let data = T::type_data();
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
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(*parent_class)
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.get_size
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.map(|f| {
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let mut size = mem::MaybeUninit::uninit();
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if from_glib(f(
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element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0,
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size.as_mut_ptr(),
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)) {
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Some(size.assume_init())
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} else {
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None
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}
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})
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.unwrap_or(None)
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}
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}
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fn parent_get_times(
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&self,
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element: &Self::Type,
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buffer: &gst::BufferRef,
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) -> (gst::ClockTime, gst::ClockTime) {
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unsafe {
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let data = T::type_data();
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
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(*parent_class)
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.get_times
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.map(|f| {
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let mut start = mem::MaybeUninit::uninit();
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let mut stop = mem::MaybeUninit::uninit();
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f(
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element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0,
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buffer.as_mut_ptr(),
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start.as_mut_ptr(),
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stop.as_mut_ptr(),
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);
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(
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from_glib(start.assume_init()),
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from_glib(stop.assume_init()),
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)
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})
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.unwrap_or((gst::CLOCK_TIME_NONE, gst::CLOCK_TIME_NONE))
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}
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}
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fn parent_fill(
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&self,
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element: &Self::Type,
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offset: u64,
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length: u32,
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buffer: &mut gst::BufferRef,
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) -> Result<gst::FlowSuccess, gst::FlowError> {
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unsafe {
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let data = T::type_data();
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
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(*parent_class)
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.fill
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.map(|f| {
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gst::FlowReturn::from_glib(f(
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element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0,
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offset,
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length,
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buffer.as_mut_ptr(),
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))
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})
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.unwrap_or(gst::FlowReturn::NotSupported)
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.into_result()
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}
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}
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fn parent_alloc(
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&self,
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element: &Self::Type,
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offset: u64,
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length: u32,
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) -> Result<gst::Buffer, gst::FlowError> {
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unsafe {
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let data = T::type_data();
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
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(*parent_class)
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.alloc
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.map(|f| {
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let mut buffer_ptr: *mut gst::ffi::GstBuffer = ptr::null_mut();
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// FIXME: Wrong signature in -sys bindings
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// https://gitlab.freedesktop.org/gstreamer/gstreamer-rs-sys/issues/3
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let buffer_ref = &mut buffer_ptr as *mut _ as *mut gst::ffi::GstBuffer;
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let res = gst::FlowReturn::from_glib(f(
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element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0,
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offset,
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length,
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buffer_ref,
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));
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res.into_result_value(|| from_glib_full(buffer_ref))
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})
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.unwrap_or(Err(gst::FlowError::NotSupported))
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}
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}
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fn parent_create(
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&self,
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element: &Self::Type,
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offset: u64,
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mut buffer: Option<&mut gst::BufferRef>,
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length: u32,
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) -> Result<CreateSuccess, gst::FlowError> {
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unsafe {
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let data = T::type_data();
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
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(*parent_class)
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.create
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.map(|f| {
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let orig_buffer_ptr = buffer
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.as_mut()
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.map(|b| b.as_mut_ptr())
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.unwrap_or(ptr::null_mut());
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let mut buffer_ptr = orig_buffer_ptr;
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// FIXME: Wrong signature in -sys bindings
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// https://gitlab.freedesktop.org/gstreamer/gstreamer-rs-sys/issues/3
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let buffer_ref = &mut buffer_ptr as *mut _ as *mut gst::ffi::GstBuffer;
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gst::FlowReturn::from_glib(
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f(
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element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0,
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offset,
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length,
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buffer_ref,
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)
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).into_result()?;
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if let Some(passed_buffer) = buffer {
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if buffer_ptr != orig_buffer_ptr {
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let new_buffer = gst::BufferRef::from_ptr(buffer_ptr);
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gst::gst_debug!(
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gst::CAT_PERFORMANCE,
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obj: element.unsafe_cast_ref::<BaseSrc>(),
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"Returned new buffer from parent create function, copying into passed buffer"
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);
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let mut map = match passed_buffer.map_writable() {
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Ok(map) => map,
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Err(_) => {
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gst::gst_error!(
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gst::CAT_RUST,
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obj: element.unsafe_cast_ref::<BaseSrc>(),
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"Failed to map passed buffer writable"
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);
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return Err(gst::FlowError::Error);
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}
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};
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let copied_size = new_buffer.copy_to_slice(0, &mut *map);
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drop(map);
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if let Err(copied_size) = copied_size {
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passed_buffer.set_size(copied_size);
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}
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match new_buffer.copy_into(passed_buffer, gst::BUFFER_COPY_METADATA, 0, None) {
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Ok(_) => Ok(CreateSuccess::FilledBuffer),
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Err(_) => {
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gst::gst_error!(
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gst::CAT_RUST,
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obj: element.unsafe_cast_ref::<BaseSrc>(),
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"Failed to copy buffer metadata"
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);
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Err(gst::FlowError::Error)
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}
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}
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} else {
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Ok(CreateSuccess::FilledBuffer)
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}
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} else {
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Ok(CreateSuccess::NewBuffer(from_glib_full(buffer_ptr)))
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}
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})
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.unwrap_or(Err(gst::FlowError::NotSupported))
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}
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}
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fn parent_do_seek(&self, element: &Self::Type, segment: &mut gst::Segment) -> bool {
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unsafe {
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let data = T::type_data();
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
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(*parent_class)
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.do_seek
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.map(|f| {
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from_glib(f(
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element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0,
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segment.to_glib_none_mut().0,
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))
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})
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.unwrap_or(false)
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}
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}
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fn parent_query(&self, element: &Self::Type, query: &mut gst::QueryRef) -> bool {
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unsafe {
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let data = T::type_data();
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
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(*parent_class)
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.query
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.map(|f| {
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from_glib(f(
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element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0,
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query.as_mut_ptr(),
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))
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})
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.unwrap_or(false)
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}
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}
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|
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fn parent_event(&self, element: &Self::Type, event: &gst::Event) -> bool {
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unsafe {
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let data = T::type_data();
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
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(*parent_class)
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.event
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.map(|f| {
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from_glib(f(
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element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0,
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event.to_glib_none().0,
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))
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})
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.unwrap_or(false)
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}
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}
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|
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fn parent_get_caps(
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&self,
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element: &Self::Type,
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filter: Option<&gst::Caps>,
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) -> Option<gst::Caps> {
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unsafe {
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let data = T::type_data();
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
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(*parent_class)
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.get_caps
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.map(|f| {
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from_glib_full(f(
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element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0,
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filter.to_glib_none().0,
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))
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})
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.unwrap_or(None)
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}
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}
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|
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fn parent_negotiate(&self, element: &Self::Type) -> Result<(), gst::LoggableError> {
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unsafe {
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let data = T::type_data();
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
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(*parent_class)
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.negotiate
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.map(|f| {
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gst::gst_result_from_gboolean!(
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f(element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0),
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gst::CAT_RUST,
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"Parent function `negotiate` failed"
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)
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})
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.unwrap_or(Ok(()))
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}
|
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}
|
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|
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fn parent_set_caps(
|
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&self,
|
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element: &Self::Type,
|
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caps: &gst::Caps,
|
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) -> Result<(), gst::LoggableError> {
|
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unsafe {
|
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let data = T::type_data();
|
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
|
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(*parent_class)
|
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.set_caps
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.map(|f| {
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gst::gst_result_from_gboolean!(
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f(
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element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0,
|
|
caps.to_glib_none().0
|
|
),
|
|
gst::CAT_RUST,
|
|
"Parent function `set_caps` failed"
|
|
)
|
|
})
|
|
.unwrap_or(Ok(()))
|
|
}
|
|
}
|
|
|
|
fn parent_fixate(&self, element: &Self::Type, caps: gst::Caps) -> gst::Caps {
|
|
unsafe {
|
|
let data = T::type_data();
|
|
let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
|
|
|
|
match (*parent_class).fixate {
|
|
Some(fixate) => from_glib_full(fixate(
|
|
element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0,
|
|
caps.into_ptr(),
|
|
)),
|
|
None => caps,
|
|
}
|
|
}
|
|
}
|
|
|
|
fn parent_unlock(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage> {
|
|
unsafe {
|
|
let data = T::type_data();
|
|
let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
|
|
(*parent_class)
|
|
.unlock
|
|
.map(|f| {
|
|
if from_glib(f(element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0)) {
|
|
Ok(())
|
|
} else {
|
|
Err(gst::gst_error_msg!(
|
|
gst::CoreError::Failed,
|
|
["Parent function `unlock` failed"]
|
|
))
|
|
}
|
|
})
|
|
.unwrap_or(Ok(()))
|
|
}
|
|
}
|
|
|
|
fn parent_unlock_stop(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage> {
|
|
unsafe {
|
|
let data = T::type_data();
|
|
let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseSrcClass;
|
|
(*parent_class)
|
|
.unlock_stop
|
|
.map(|f| {
|
|
if from_glib(f(element.unsafe_cast_ref::<BaseSrc>().to_glib_none().0)) {
|
|
Ok(())
|
|
} else {
|
|
Err(gst::gst_error_msg!(
|
|
gst::CoreError::Failed,
|
|
["Parent function `unlock_stop` failed"]
|
|
))
|
|
}
|
|
})
|
|
.unwrap_or(Ok(()))
|
|
}
|
|
}
|
|
}
|
|
|
|
unsafe impl<T: BaseSrcImpl> IsSubclassable<T> for BaseSrc
|
|
where
|
|
<T as ObjectSubclass>::Instance: PanicPoison,
|
|
{
|
|
fn override_vfuncs(klass: &mut glib::Class<Self>) {
|
|
<gst::Element as IsSubclassable<T>>::override_vfuncs(klass);
|
|
let klass = klass.as_mut();
|
|
klass.start = Some(base_src_start::<T>);
|
|
klass.stop = Some(base_src_stop::<T>);
|
|
klass.is_seekable = Some(base_src_is_seekable::<T>);
|
|
klass.get_size = Some(base_src_get_size::<T>);
|
|
klass.get_times = Some(base_src_get_times::<T>);
|
|
klass.fill = Some(base_src_fill::<T>);
|
|
klass.alloc = Some(base_src_alloc::<T>);
|
|
klass.create = Some(base_src_create::<T>);
|
|
klass.do_seek = Some(base_src_do_seek::<T>);
|
|
klass.query = Some(base_src_query::<T>);
|
|
klass.event = Some(base_src_event::<T>);
|
|
klass.get_caps = Some(base_src_get_caps::<T>);
|
|
klass.negotiate = Some(base_src_negotiate::<T>);
|
|
klass.set_caps = Some(base_src_set_caps::<T>);
|
|
klass.fixate = Some(base_src_fixate::<T>);
|
|
klass.unlock = Some(base_src_unlock::<T>);
|
|
klass.unlock_stop = Some(base_src_unlock_stop::<T>);
|
|
}
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_start<T: BaseSrcImpl>(
|
|
ptr: *mut ffi::GstBaseSrc,
|
|
) -> glib::ffi::gboolean
|
|
where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), false, {
|
|
match imp.start(wrap.unsafe_cast_ref()) {
|
|
Ok(()) => true,
|
|
Err(err) => {
|
|
wrap.post_error_message(err);
|
|
false
|
|
}
|
|
}
|
|
})
|
|
.to_glib()
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_stop<T: BaseSrcImpl>(ptr: *mut ffi::GstBaseSrc) -> glib::ffi::gboolean
|
|
where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), false, {
|
|
match imp.stop(wrap.unsafe_cast_ref()) {
|
|
Ok(()) => true,
|
|
Err(err) => {
|
|
wrap.post_error_message(err);
|
|
false
|
|
}
|
|
}
|
|
})
|
|
.to_glib()
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_is_seekable<T: BaseSrcImpl>(
|
|
ptr: *mut ffi::GstBaseSrc,
|
|
) -> glib::ffi::gboolean
|
|
where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), false, {
|
|
imp.is_seekable(wrap.unsafe_cast_ref())
|
|
})
|
|
.to_glib()
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_get_size<T: BaseSrcImpl>(
|
|
ptr: *mut ffi::GstBaseSrc,
|
|
size: *mut u64,
|
|
) -> glib::ffi::gboolean
|
|
where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), false, {
|
|
match imp.get_size(wrap.unsafe_cast_ref()) {
|
|
Some(s) => {
|
|
*size = s;
|
|
true
|
|
}
|
|
None => false,
|
|
}
|
|
})
|
|
.to_glib()
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_get_times<T: BaseSrcImpl>(
|
|
ptr: *mut ffi::GstBaseSrc,
|
|
buffer: *mut gst::ffi::GstBuffer,
|
|
start: *mut gst::ffi::GstClockTime,
|
|
stop: *mut gst::ffi::GstClockTime,
|
|
) where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
let buffer = gst::BufferRef::from_ptr(buffer);
|
|
|
|
*start = gst::ffi::GST_CLOCK_TIME_NONE;
|
|
*stop = gst::ffi::GST_CLOCK_TIME_NONE;
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), (), {
|
|
let (start_, stop_) = imp.get_times(wrap.unsafe_cast_ref(), buffer);
|
|
*start = start_.to_glib();
|
|
*stop = stop_.to_glib();
|
|
});
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_fill<T: BaseSrcImpl>(
|
|
ptr: *mut ffi::GstBaseSrc,
|
|
offset: u64,
|
|
length: u32,
|
|
buffer: *mut gst::ffi::GstBuffer,
|
|
) -> gst::ffi::GstFlowReturn
|
|
where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
let buffer = gst::BufferRef::from_mut_ptr(buffer);
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), gst::FlowReturn::Error, {
|
|
imp.fill(wrap.unsafe_cast_ref(), offset, length, buffer)
|
|
.into()
|
|
})
|
|
.to_glib()
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_alloc<T: BaseSrcImpl>(
|
|
ptr: *mut ffi::GstBaseSrc,
|
|
offset: u64,
|
|
length: u32,
|
|
buffer_ptr: *mut gst::ffi::GstBuffer,
|
|
) -> gst::ffi::GstFlowReturn
|
|
where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
// FIXME: Wrong signature in -sys bindings
|
|
// https://gitlab.freedesktop.org/gstreamer/gstreamer-rs-sys/issues/3
|
|
let buffer_ptr = buffer_ptr as *mut *mut gst::ffi::GstBuffer;
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), gst::FlowReturn::Error, {
|
|
match imp.alloc(wrap.unsafe_cast_ref(), offset, length) {
|
|
Ok(buffer) => {
|
|
*buffer_ptr = buffer.into_ptr();
|
|
gst::FlowReturn::Ok
|
|
}
|
|
Err(err) => gst::FlowReturn::from(err),
|
|
}
|
|
})
|
|
.to_glib()
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_create<T: BaseSrcImpl>(
|
|
ptr: *mut ffi::GstBaseSrc,
|
|
offset: u64,
|
|
length: u32,
|
|
buffer_ptr: *mut gst::ffi::GstBuffer,
|
|
) -> gst::ffi::GstFlowReturn
|
|
where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
// FIXME: Wrong signature in -sys bindings
|
|
// https://gitlab.freedesktop.org/gstreamer/gstreamer-rs-sys/issues/3
|
|
let buffer_ptr = buffer_ptr as *mut *mut gst::ffi::GstBuffer;
|
|
|
|
let mut buffer = if (*buffer_ptr).is_null() {
|
|
None
|
|
} else {
|
|
Some(gst::BufferRef::from_mut_ptr(*buffer_ptr))
|
|
};
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), gst::FlowReturn::Error, {
|
|
match imp.create(
|
|
wrap.unsafe_cast_ref(),
|
|
offset,
|
|
buffer.as_deref_mut(),
|
|
length,
|
|
) {
|
|
Ok(CreateSuccess::NewBuffer(new_buffer)) => {
|
|
if let Some(passed_buffer) = buffer {
|
|
if passed_buffer.as_ptr() != new_buffer.as_ptr() {
|
|
gst::gst_debug!(
|
|
gst::CAT_PERFORMANCE,
|
|
obj: &*wrap,
|
|
"Returned new buffer from create function, copying into passed buffer"
|
|
);
|
|
|
|
let mut map = match passed_buffer.map_writable() {
|
|
Ok(map) => map,
|
|
Err(_) => {
|
|
gst::gst_error!(
|
|
gst::CAT_RUST,
|
|
obj: &*wrap,
|
|
"Failed to map passed buffer writable"
|
|
);
|
|
return gst::FlowReturn::Error;
|
|
}
|
|
};
|
|
|
|
let copied_size = new_buffer.copy_to_slice(0, &mut *map);
|
|
drop(map);
|
|
|
|
if let Err(copied_size) = copied_size {
|
|
passed_buffer.set_size(copied_size);
|
|
}
|
|
|
|
match new_buffer.copy_into(
|
|
passed_buffer,
|
|
gst::BUFFER_COPY_METADATA,
|
|
0,
|
|
None,
|
|
) {
|
|
Ok(_) => gst::FlowReturn::Ok,
|
|
Err(_) => {
|
|
gst::gst_error!(
|
|
gst::CAT_RUST,
|
|
obj: &*wrap,
|
|
"Failed to copy buffer metadata"
|
|
);
|
|
|
|
gst::FlowReturn::Error
|
|
}
|
|
}
|
|
} else {
|
|
gst::FlowReturn::Ok
|
|
}
|
|
} else {
|
|
*buffer_ptr = new_buffer.into_ptr();
|
|
gst::FlowReturn::Ok
|
|
}
|
|
}
|
|
Ok(CreateSuccess::FilledBuffer) => gst::FlowReturn::Ok,
|
|
Err(err) => gst::FlowReturn::from(err),
|
|
}
|
|
})
|
|
.to_glib()
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_do_seek<T: BaseSrcImpl>(
|
|
ptr: *mut ffi::GstBaseSrc,
|
|
segment: *mut gst::ffi::GstSegment,
|
|
) -> glib::ffi::gboolean
|
|
where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), false, {
|
|
let mut s = from_glib_none(segment);
|
|
let res = imp.do_seek(wrap.unsafe_cast_ref(), &mut s);
|
|
ptr::write(segment, *(s.to_glib_none().0));
|
|
|
|
res
|
|
})
|
|
.to_glib()
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_query<T: BaseSrcImpl>(
|
|
ptr: *mut ffi::GstBaseSrc,
|
|
query_ptr: *mut gst::ffi::GstQuery,
|
|
) -> glib::ffi::gboolean
|
|
where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
let query = gst::QueryRef::from_mut_ptr(query_ptr);
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), false, {
|
|
BaseSrcImpl::query(imp, wrap.unsafe_cast_ref(), query)
|
|
})
|
|
.to_glib()
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_event<T: BaseSrcImpl>(
|
|
ptr: *mut ffi::GstBaseSrc,
|
|
event_ptr: *mut gst::ffi::GstEvent,
|
|
) -> glib::ffi::gboolean
|
|
where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), false, {
|
|
imp.event(wrap.unsafe_cast_ref(), &from_glib_borrow(event_ptr))
|
|
})
|
|
.to_glib()
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_get_caps<T: BaseSrcImpl>(
|
|
ptr: *mut ffi::GstBaseSrc,
|
|
filter: *mut gst::ffi::GstCaps,
|
|
) -> *mut gst::ffi::GstCaps
|
|
where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
let filter = Option::<gst::Caps>::from_glib_borrow(filter);
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), None, {
|
|
imp.get_caps(wrap.unsafe_cast_ref(), filter.as_ref().as_ref())
|
|
})
|
|
.map(|caps| caps.into_ptr())
|
|
.unwrap_or(ptr::null_mut())
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_negotiate<T: BaseSrcImpl>(
|
|
ptr: *mut ffi::GstBaseSrc,
|
|
) -> glib::ffi::gboolean
|
|
where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), false, {
|
|
match imp.negotiate(wrap.unsafe_cast_ref()) {
|
|
Ok(()) => true,
|
|
Err(err) => {
|
|
err.log_with_object(&*wrap);
|
|
false
|
|
}
|
|
}
|
|
})
|
|
.to_glib()
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_set_caps<T: BaseSrcImpl>(
|
|
ptr: *mut ffi::GstBaseSrc,
|
|
caps: *mut gst::ffi::GstCaps,
|
|
) -> glib::ffi::gboolean
|
|
where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
let caps = from_glib_borrow(caps);
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), false, {
|
|
match imp.set_caps(wrap.unsafe_cast_ref(), &caps) {
|
|
Ok(()) => true,
|
|
Err(err) => {
|
|
err.log_with_object(&*wrap);
|
|
false
|
|
}
|
|
}
|
|
})
|
|
.to_glib()
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_fixate<T: BaseSrcImpl>(
|
|
ptr: *mut ffi::GstBaseSrc,
|
|
caps: *mut gst::ffi::GstCaps,
|
|
) -> *mut gst::ffi::GstCaps
|
|
where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
let caps = from_glib_full(caps);
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), gst::Caps::new_empty(), {
|
|
imp.fixate(wrap.unsafe_cast_ref(), caps)
|
|
})
|
|
.into_ptr()
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_unlock<T: BaseSrcImpl>(
|
|
ptr: *mut ffi::GstBaseSrc,
|
|
) -> glib::ffi::gboolean
|
|
where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), false, {
|
|
match imp.unlock(wrap.unsafe_cast_ref()) {
|
|
Ok(()) => true,
|
|
Err(err) => {
|
|
wrap.post_error_message(err);
|
|
false
|
|
}
|
|
}
|
|
})
|
|
.to_glib()
|
|
}
|
|
|
|
unsafe extern "C" fn base_src_unlock_stop<T: BaseSrcImpl>(
|
|
ptr: *mut ffi::GstBaseSrc,
|
|
) -> glib::ffi::gboolean
|
|
where
|
|
T::Instance: PanicPoison,
|
|
{
|
|
let instance = &*(ptr as *mut T::Instance);
|
|
let imp = instance.get_impl();
|
|
let wrap: Borrowed<BaseSrc> = from_glib_borrow(ptr);
|
|
|
|
gst::gst_panic_to_error!(&wrap, &instance.panicked(), false, {
|
|
match imp.unlock_stop(wrap.unsafe_cast_ref()) {
|
|
Ok(()) => true,
|
|
Err(err) => {
|
|
wrap.post_error_message(err);
|
|
false
|
|
}
|
|
}
|
|
})
|
|
.to_glib()
|
|
}
|