mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer-rs.git
synced 2024-09-27 06:20:05 +00:00
90b8ee2022
It's doing the same thing and is shorter.
117 lines
3.5 KiB
Rust
117 lines
3.5 KiB
Rust
// Take a look at the license at the top of the repository in the LICENSE file.
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use glib::translate::*;
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use gst_base::prelude::*;
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use gst_base::subclass::prelude::*;
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use std::ptr;
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use crate::AudioAggregatorPad;
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pub trait AudioAggregatorPadImpl: AudioAggregatorPadImplExt + AggregatorPadImpl {
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const HANDLE_CONVERSION: bool = false;
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fn update_conversion_info(&self) {
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self.parent_update_conversion_info()
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}
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fn convert_buffer(
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&self,
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in_info: &crate::AudioInfo,
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out_info: &crate::AudioInfo,
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buffer: &gst::Buffer,
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) -> Option<gst::Buffer> {
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self.parent_convert_buffer(in_info, out_info, buffer)
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}
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}
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pub trait AudioAggregatorPadImplExt: ObjectSubclass {
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fn parent_update_conversion_info(&self);
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fn parent_convert_buffer(
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&self,
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in_info: &crate::AudioInfo,
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out_info: &crate::AudioInfo,
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buffer: &gst::Buffer,
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) -> Option<gst::Buffer>;
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}
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impl<T: AudioAggregatorPadImpl> AudioAggregatorPadImplExt for T {
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fn parent_update_conversion_info(&self) {
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unsafe {
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let data = Self::type_data();
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let parent_class = data.as_ref().parent_class() as *mut ffi::GstAudioAggregatorPadClass;
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if let Some(f) = (*parent_class).update_conversion_info {
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f(self
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.obj()
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.unsafe_cast_ref::<AudioAggregatorPad>()
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.to_glib_none()
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.0);
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}
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}
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}
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fn parent_convert_buffer(
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&self,
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in_info: &crate::AudioInfo,
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out_info: &crate::AudioInfo,
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buffer: &gst::Buffer,
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) -> Option<gst::Buffer> {
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unsafe {
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let data = Self::type_data();
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let parent_class = data.as_ref().parent_class() as *mut ffi::GstAudioAggregatorPadClass;
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let f = (*parent_class)
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.convert_buffer
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.expect("Missing parent function `convert_buffer`");
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from_glib_full(f(
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self.obj()
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.unsafe_cast_ref::<AudioAggregatorPad>()
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.to_glib_none()
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.0,
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mut_override(in_info.to_glib_none().0),
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mut_override(out_info.to_glib_none().0),
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buffer.as_mut_ptr(),
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))
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}
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}
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}
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unsafe impl<T: AudioAggregatorPadImpl> IsSubclassable<T> for AudioAggregatorPad {
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fn class_init(klass: &mut glib::Class<Self>) {
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Self::parent_class_init::<T>(klass);
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let klass = klass.as_mut();
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if T::HANDLE_CONVERSION {
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klass.update_conversion_info = Some(audio_aggregator_pad_update_conversion_info::<T>);
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klass.convert_buffer = Some(audio_aggregator_pad_convert_buffer::<T>);
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}
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}
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}
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unsafe extern "C" fn audio_aggregator_pad_update_conversion_info<T: AudioAggregatorPadImpl>(
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ptr: *mut ffi::GstAudioAggregatorPad,
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) {
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.imp();
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imp.update_conversion_info();
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}
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unsafe extern "C" fn audio_aggregator_pad_convert_buffer<T: AudioAggregatorPadImpl>(
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ptr: *mut ffi::GstAudioAggregatorPad,
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in_info: *mut ffi::GstAudioInfo,
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out_info: *mut ffi::GstAudioInfo,
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buffer: *mut gst::ffi::GstBuffer,
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) -> *mut gst::ffi::GstBuffer {
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.imp();
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imp.convert_buffer(
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&from_glib_none(in_info),
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&from_glib_none(out_info),
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&from_glib_borrow(buffer),
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)
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.map(|buffer| buffer.into_glib_ptr())
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.unwrap_or(ptr::null_mut())
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}
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