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https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git
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83 lines
2.9 KiB
Rust
83 lines
2.9 KiB
Rust
// Copyright 2019 Jordan Petridis <jordan@centricular.com>
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//
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// SPDX-License-Identifier: MIT
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#![allow(clippy::non_send_fields_in_send_ty, unused_doc_comments)]
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/**
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* plugin-sodium:
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*
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* Since: plugins-rs-0.5.0
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*/
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use gst::glib;
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const TYPEFIND_HEADER: &[u8; 12] = b"gst-sodium10";
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// `core::slice::<impl [T]>::len` is not yet stable as a const fn
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// const TYPEFIND_HEADER_SIZE: usize = TYPEFIND_HEADER.len();
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const TYPEFIND_HEADER_SIZE: usize = 12;
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/// Encryted steams use an offset at the start to store the block_size
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/// and the nonce that was used.
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const HEADERS_SIZE: usize =
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TYPEFIND_HEADER_SIZE + sodiumoxide::crypto::box_::NONCEBYTES + std::mem::size_of::<u32>();
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mod decrypter;
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mod encrypter;
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fn typefind_register(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
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use gst::{Caps, TypeFind, TypeFindProbability};
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TypeFind::register(
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Some(plugin),
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"sodium_encrypted_typefind",
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gst::Rank::NONE,
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None,
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Some(&Caps::builder("application/x-sodium-encrypted").build()),
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|typefind| {
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if let Some(data) = typefind.peek(0, TYPEFIND_HEADER_SIZE as u32) {
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if data == TYPEFIND_HEADER {
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typefind.suggest(
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TypeFindProbability::Maximum,
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&Caps::builder("application/x-sodium-encrypted").build(),
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);
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}
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}
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},
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)
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}
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fn plugin_init(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
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encrypter::register(plugin)?;
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decrypter::register(plugin)?;
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typefind_register(plugin)?;
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Ok(())
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}
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gst::plugin_define!(
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sodium,
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env!("CARGO_PKG_DESCRIPTION"),
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plugin_init,
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concat!(env!("CARGO_PKG_VERSION"), "-", env!("COMMIT_ID")),
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"MIT/X11",
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env!("CARGO_PKG_NAME"),
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env!("CARGO_PKG_NAME"),
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env!("CARGO_PKG_REPOSITORY"),
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env!("BUILD_REL_DATE")
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);
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