forked from mirrors/gstreamer-rs
72 lines
2.4 KiB
Rust
72 lines
2.4 KiB
Rust
// Take a look at the license at the top of the repository in the LICENSE file.
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use crate::auto::AudioVisualizer;
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use crate::subclass::AudioVisualizerSetupToken;
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use glib::object::IsA;
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use gst::prelude::*;
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pub trait AudioVisualizerExtManual: 'static {
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// rustdoc-stripper-ignore-next
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/// Returns the number of samples per frame required before calling the render method
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fn req_spf(&self) -> u32;
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// rustdoc-stripper-ignore-next
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/// Modify the request of samples per frame required to be present in buffer before calling
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/// the render method
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fn set_req_spf(&self, spf: u32, token: &AudioVisualizerSetupToken);
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fn audio_info(&self) -> gst_audio::AudioInfo;
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fn video_info(&self) -> gst_video::VideoInfo;
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}
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impl<O: IsA<AudioVisualizer> + ElementExt> AudioVisualizerExtManual for O {
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fn req_spf(&self) -> u32 {
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let sinkpad = self.static_pad("sink").expect("sink pad presence");
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let _stream_lock = sinkpad.stream_lock();
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let ptr = self.as_ptr() as *mut ffi::GstAudioVisualizer;
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unsafe { (*ptr).req_spf }
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}
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fn set_req_spf(&self, spf: u32, token: &AudioVisualizerSetupToken) {
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assert_eq!(
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self.as_ptr() as *mut ffi::GstAudioVisualizer,
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token.0.as_ptr() as *mut ffi::GstAudioVisualizer
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);
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let sinkpad = self.static_pad("sink").expect("sink pad presence");
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let _stream_lock = sinkpad.stream_lock();
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let mut ptr = self.as_ptr() as *mut ffi::GstAudioVisualizer;
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unsafe {
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(*ptr).req_spf = spf;
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}
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}
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fn audio_info(&self) -> gst_audio::AudioInfo {
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let sinkpad = self.static_pad("sink").expect("sink pad presence");
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let _stream_lock = sinkpad.stream_lock();
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let ptr = self.as_ptr() as *mut ffi::GstAudioVisualizer;
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unsafe {
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let info = &(*ptr).ainfo;
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glib::translate::from_glib_none(glib::translate::mut_override(
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info as *const gst_audio::ffi::GstAudioInfo,
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))
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}
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}
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fn video_info(&self) -> gst_video::VideoInfo {
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let srcpad = self.static_pad("src").expect("src pad presence");
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let _stream_lock = srcpad.stream_lock();
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let ptr = self.as_ptr() as *mut ffi::GstAudioVisualizer;
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unsafe {
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let info = &(*ptr).vinfo;
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glib::translate::from_glib_none(glib::translate::mut_override(
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info as *const gst_video::ffi::GstVideoInfo,
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))
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}
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}
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}
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