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/*
This file is part of jellything (https://codeberg.org/metamuffin/jellything)
which is licensed under the GNU Affero General Public License (version 3); see /COPYING.
Copyright (C) 2025 metamuffin <metamuffin.org>
*/
use crate::muxers::FragmentMuxer;
use anyhow::Result;
use std::io::Write;
use winter_ebml::{EbmlHeader, EbmlToVec};
use winter_matroska::{MatroskaFile, Segment};
fn write_fragment_shared(out: &mut dyn Write, mut segment: Segment, webm: bool) -> Result<()> {
segment.info.muxing_app =
concat!(env!("CARGO_PKG_NAME"), "/", env!("CARGO_PKG_VERSION")).to_string();
if webm {
if let Some(tracks) = &mut segment.tracks {
for track in &mut tracks.entries {
if let Some(video) = &mut track.video {
video.colour = None;
video.projection = None;
video.display_unit = 0; // pixels
video.display_width = Some(video.pixel_width);
video.display_height = Some(video.pixel_height);
}
}
}
}
let file = MatroskaFile {
ebml_header: EbmlHeader {
ebml_version: 1,
ebml_read_version: 1,
ebml_max_id_length: 4,
ebml_max_size_length: 8,
doc_type: if webm { "webm" } else { "matroska" }.to_string(),
doc_type_version: 4,
doc_type_read_version: 2,
..Default::default()
},
segment,
};
out.write_all(&file.to_vec())?;
Ok(())
}
pub struct MatroskaFragmentMuxer;
impl FragmentMuxer for MatroskaFragmentMuxer {
fn write_fragment(out: &mut dyn Write, segment: Segment) -> Result<()> {
write_fragment_shared(out, segment, false)
}
}
pub struct WebmFragmentMuxer;
impl FragmentMuxer for WebmFragmentMuxer {
fn write_fragment(out: &mut dyn Write, segment: Segment) -> Result<()> {
write_fragment_shared(out, segment, true)
}
}
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