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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) 2024 metamuffin <metamuffin.org>
*/
use anyhow::{anyhow, Result};
use jellybase::CONF;
use jellycommon::{
stream::{StreamFormat, StreamSpec},
LocalTrack, Node, SourceTrackKind,
};
use std::{fmt::Write, ops::Range};
use tokio::{
io::{AsyncWriteExt, DuplexStream},
task::spawn_blocking,
};
pub async fn hls_master_stream(
node: Node,
_local_tracks: Vec<LocalTrack>,
_spec: StreamSpec,
mut b: DuplexStream,
) -> Result<()> {
let media = node.public.media.as_ref().ok_or(anyhow!("no media"))?;
let mut out = String::new();
writeln!(out, "#EXTM3U")?;
writeln!(out, "#EXT-X-VERSION:4")?;
// writeln!(out, "#EXT-X-INDEPENDENT-SEGMENTS")?;
for (i, t) in media.tracks.iter().enumerate() {
let uri = format!(
"stream?{}",
StreamSpec {
track: vec![i],
format: StreamFormat::HlsVariant,
..Default::default()
}
.to_query()
);
let r#type = match t.kind {
SourceTrackKind::Video { .. } => "VIDEO",
SourceTrackKind::Audio { .. } => "AUDIO",
SourceTrackKind::Subtitles => "SUBTITLES",
};
writeln!(out, "#EXT-X-STREAM-INF:BANDWIDTH=5000000,TYPE={type}")?;
writeln!(out, "{uri}")?;
}
tokio::spawn(async move { b.write_all(out.as_bytes()).await });
Ok(())
}
pub async fn hls_variant_stream(
node: Node,
local_tracks: Vec<LocalTrack>,
mut spec: StreamSpec,
mut b: DuplexStream,
) -> Result<()> {
let local_track = local_tracks.get(0).ok_or(anyhow!("no track"))?.to_owned();
let track_index = spec.track[0];
let media_info = node.public.media.to_owned().ok_or(anyhow!("no media?"))?;
let frags = spawn_blocking(move || {
jellyremuxer::fragment::fragment_index(
&CONF.media_path,
&node.public,
&local_track,
track_index,
)
})
.await??;
let mut out = String::new();
writeln!(out, "#EXTM3U")?;
writeln!(out, "#EXT-X-PLAYLIST-TYPE:VOD")?;
writeln!(out, "#EXT-X-TARGETDURATIION:{}", media_info.duration)?;
writeln!(out, "#EXT-X-VERSION:4")?;
writeln!(out, "#EXT-X-MEDIA-SEQUENCE:0")?;
spec.format = StreamFormat::Fragment;
for (i, Range { start, end }) in frags.iter().enumerate() {
writeln!(out, "#EXTINF:{:},", end - start)?;
spec.index = Some(i);
writeln!(out, "stream?{}", spec.to_query())?;
}
writeln!(out, "#EXT-X-ENDLIST")?;
tokio::spawn(async move { b.write_all(out.as_bytes()).await });
Ok(())
}
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