use std::{mem, ptr};
use glib::{prelude::*, translate::*};
use crate::{
VideoCodecFrame, VideoEncoder, ffi,
utils::HasStreamLock,
video_codec_state::{InNegotiation, Readable, VideoCodecState, VideoCodecStateContext},
};
pub trait VideoEncoderExtManual: IsA<VideoEncoder> + 'static {
#[doc(alias = "gst_video_encoder_allocate_output_frame")]
fn allocate_output_frame(
&self,
frame: &mut VideoCodecFrame,
size: usize,
) -> Result<gst::FlowSuccess, gst::FlowError> {
unsafe {
try_from_glib(ffi::gst_video_encoder_allocate_output_frame(
self.as_ref().to_glib_none().0,
frame.to_glib_none().0,
size,
))
}
}
#[doc(alias = "get_frame")]
#[doc(alias = "gst_video_encoder_get_frame")]
fn frame(&self, frame_number: i32) -> Option<VideoCodecFrame<'_>> {
let frame = unsafe {
ffi::gst_video_encoder_get_frame(self.as_ref().to_glib_none().0, frame_number)
};
if frame.is_null() {
None
} else {
unsafe { Some(VideoCodecFrame::new(frame, self.as_ref())) }
}
}
#[doc(alias = "get_frames")]
#[doc(alias = "gst_video_encoder_get_frames")]
fn frames(&self) -> Vec<VideoCodecFrame<'_>> {
unsafe {
let frames = ffi::gst_video_encoder_get_frames(self.as_ref().to_glib_none().0);
let mut iter: *const glib::ffi::GList = frames;
let mut vec = Vec::new();
while !iter.is_null() {
let frame_ptr = Ptr::from((*iter).data);
let frame = VideoCodecFrame::new(frame_ptr, self.as_ref());
vec.push(frame);
iter = (*iter).next;
}
glib::ffi::g_list_free(frames);
vec
}
}
#[doc(alias = "get_oldest_frame")]
#[doc(alias = "gst_video_encoder_get_oldest_frame")]
fn oldest_frame(&self) -> Option<VideoCodecFrame<'_>> {
let frame =
unsafe { ffi::gst_video_encoder_get_oldest_frame(self.as_ref().to_glib_none().0) };
if frame.is_null() {
None
} else {
unsafe { Some(VideoCodecFrame::new(frame, self.as_ref())) }
}
}
#[doc(alias = "get_allocator")]
#[doc(alias = "gst_video_encoder_get_allocator")]
fn allocator(&self) -> (Option<gst::Allocator>, gst::AllocationParams) {
unsafe {
let mut allocator = ptr::null_mut();
let mut params = mem::MaybeUninit::uninit();
ffi::gst_video_encoder_get_allocator(
self.as_ref().to_glib_none().0,
&mut allocator,
params.as_mut_ptr(),
);
(from_glib_full(allocator), params.assume_init().into())
}
}
#[cfg(feature = "v1_18")]
#[cfg_attr(docsrs, doc(cfg(feature = "v1_18")))]
#[doc(alias = "gst_video_encoder_finish_subframe")]
fn finish_subframe(&self, frame: &VideoCodecFrame) -> Result<gst::FlowSuccess, gst::FlowError> {
unsafe {
try_from_glib(ffi::gst_video_encoder_finish_subframe(
self.as_ref().to_glib_none().0,
frame.to_glib_none().0,
))
}
}
#[doc(alias = "get_latency")]
#[doc(alias = "gst_video_encoder_get_latency")]
fn latency(&self) -> (gst::ClockTime, Option<gst::ClockTime>) {
let mut min_latency = gst::ffi::GST_CLOCK_TIME_NONE;
let mut max_latency = gst::ffi::GST_CLOCK_TIME_NONE;
unsafe {
ffi::gst_video_encoder_get_latency(
self.as_ref().to_glib_none().0,
&mut min_latency,
&mut max_latency,
);
(
try_from_glib(min_latency).expect("undefined min_latency"),
from_glib(max_latency),
)
}
}
#[doc(alias = "gst_video_encoder_set_latency")]
fn set_latency(
&self,
min_latency: gst::ClockTime,
max_latency: impl Into<Option<gst::ClockTime>>,
) {
unsafe {
ffi::gst_video_encoder_set_latency(
self.as_ref().to_glib_none().0,
min_latency.into_glib(),
max_latency.into().into_glib(),
);
}
}
#[doc(alias = "get_output_state")]
#[doc(alias = "gst_video_encoder_get_output_state")]
fn output_state(&self) -> Option<VideoCodecState<'static, Readable>> {
let state =
unsafe { ffi::gst_video_encoder_get_output_state(self.as_ref().to_glib_none().0) };
if state.is_null() {
None
} else {
unsafe { Some(VideoCodecState::<Readable>::new(state)) }
}
}
#[doc(alias = "gst_video_encoder_set_output_state")]
fn set_output_state(
&self,
caps: gst::Caps,
reference: Option<&VideoCodecState<Readable>>,
) -> Result<VideoCodecState<'_, InNegotiation<'_>>, gst::FlowError> {
let state = unsafe {
let reference = match reference {
Some(reference) => reference.as_mut_ptr(),
None => ptr::null_mut(),
};
ffi::gst_video_encoder_set_output_state(
self.as_ref().to_glib_none().0,
caps.into_glib_ptr(),
reference,
)
};
if state.is_null() {
Err(gst::FlowError::NotNegotiated)
} else {
unsafe { Ok(VideoCodecState::<InNegotiation>::new(state, self.as_ref())) }
}
}
#[doc(alias = "gst_video_encoder_negotiate")]
fn negotiate<'a>(
&'a self,
output_state: VideoCodecState<'a, InNegotiation<'a>>,
) -> Result<(), gst::FlowError> {
let self_ptr = self.to_glib_none().0 as *const gst::ffi::GstElement;
assert_eq!(output_state.context.element_as_ptr(), self_ptr);
let ret = unsafe {
from_glib(ffi::gst_video_encoder_negotiate(
self.as_ref().to_glib_none().0,
))
};
if ret {
Ok(())
} else {
Err(gst::FlowError::NotNegotiated)
}
}
#[doc(alias = "gst_video_encoder_set_headers")]
fn set_headers(&self, headers: impl IntoIterator<Item = gst::Buffer>) {
unsafe {
ffi::gst_video_encoder_set_headers(
self.as_ref().to_glib_none().0,
headers
.into_iter()
.collect::<glib::List<_>>()
.into_glib_ptr(),
);
}
}
fn sink_pad(&self) -> &gst::Pad {
unsafe {
let elt = &*(self.as_ptr() as *const ffi::GstVideoEncoder);
&*(&elt.sinkpad as *const *mut gst::ffi::GstPad as *const gst::Pad)
}
}
fn src_pad(&self) -> &gst::Pad {
unsafe {
let elt = &*(self.as_ptr() as *const ffi::GstVideoEncoder);
&*(&elt.srcpad as *const *mut gst::ffi::GstPad as *const gst::Pad)
}
}
fn input_segment(&self) -> gst::Segment {
unsafe {
let ptr: &ffi::GstVideoDecoder = &*(self.as_ptr() as *const _);
glib::ffi::g_rec_mutex_lock(mut_override(&ptr.stream_lock));
let segment = ptr.input_segment;
glib::ffi::g_rec_mutex_unlock(mut_override(&ptr.stream_lock));
from_glib_none(&segment as *const gst::ffi::GstSegment)
}
}
fn output_segment(&self) -> gst::Segment {
unsafe {
let ptr: &ffi::GstVideoDecoder = &*(self.as_ptr() as *const _);
glib::ffi::g_rec_mutex_lock(mut_override(&ptr.stream_lock));
let segment = ptr.output_segment;
glib::ffi::g_rec_mutex_unlock(mut_override(&ptr.stream_lock));
from_glib_none(&segment as *const gst::ffi::GstSegment)
}
}
}
impl<O: IsA<VideoEncoder>> VideoEncoderExtManual for O {}
impl HasStreamLock for VideoEncoder {
fn stream_lock(&self) -> *mut glib::ffi::GRecMutex {
let encoder_sys: *const ffi::GstVideoEncoder = self.to_glib_none().0;
unsafe { mut_override(&(*encoder_sys).stream_lock) }
}
fn element_as_ptr(&self) -> *const gst::ffi::GstElement {
self.as_ptr() as *const gst::ffi::GstElement
}
}