gstreamer-rs/gstreamer/src/sample.rs

// Copyright (C) 2017 Sebastian Dröge <sebastian@centricular.com>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

use std::ptr;

use ffi;

use glib;
use glib::StaticType;
use glib::translate::{mut_override, from_glib, from_glib_none, from_glib_full, ToGlibPtr};

use miniobject::*;
use Buffer;
use Caps;
use Segment;
use StructureRef;

pub type Sample = GstRc<SampleRef>;
pub struct SampleRef(ffi::GstSample);

unsafe impl MiniObject for SampleRef {
    type GstType = ffi::GstSample;
}

impl GstRc<SampleRef> {
    pub fn new(buffer: Option<Buffer>, caps: Option<Caps>, segment: Option<&Segment>, info: Option<&StructureRef>) -> Self {
        assert_initialized_main_thread!();
        unsafe {
            let info = info.map(|i| i.as_ptr()).unwrap_or(ptr::null());

            from_glib_full(ffi::gst_sample_new(buffer.to_glib_none().0, caps.to_glib_none().0, mut_override(segment.to_glib_none().0), mut_override(info)))
        }
    }
}

impl SampleRef {
    pub fn get_buffer(&self) -> Option<Buffer> {
        unsafe {
            from_glib_none(ffi::gst_sample_get_buffer(self.as_mut_ptr()))
        }
    }

    // TODO: bufferlist

    pub fn get_caps(&self) -> Option<Caps> {
        unsafe {
            from_glib_none(ffi::gst_sample_get_caps(self.as_mut_ptr()))
        }
    }

    pub fn get_segment(&self) -> Option<Segment> {
        unsafe {
            from_glib_none(ffi::gst_sample_get_segment(self.as_mut_ptr()))
        }
    }

    pub fn get_structure(&self) -> Option<&StructureRef> {
        unsafe {
            let ptr = ffi::gst_sample_get_info(self.as_mut_ptr());
            if ptr.is_null() {
                None
            } else {
                Some(StructureRef::from_glib_borrow(ptr))
            }
        }
    }
}

impl StaticType for SampleRef {
    fn static_type() -> glib::Type {
        unsafe {
            from_glib(ffi::gst_sample_get_type())
        }
    }
}

impl ToOwned for SampleRef {
    type Owned = GstRc<SampleRef>;

    fn to_owned(&self) -> GstRc<SampleRef> {
        unsafe { from_glib_none(self.as_ptr()) }
    }
}

unsafe impl Sync for SampleRef {}
unsafe impl Send for SampleRef {}