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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>
*/
#![feature(iterator_try_collect)]
pub mod fragment;
pub mod hls;
pub mod jhls;
pub mod webvtt;
use anyhow::Result;
use ebml_struct::matroska::{Info, Tracks};
use jellybase::common::{
stream::{StreamContainer, StreamSpec},
LocalTrack, MediaInfo, Node,
};
use jellymatroska::block::LacingType;
use std::{ops::Range, sync::Arc};
use tokio::{
fs::File,
io::{duplex, AsyncReadExt, AsyncWriteExt, DuplexStream},
};
use tokio_util::io::SyncIoBridge;
pub struct StreamHead {
pub content_type: &'static str,
pub range_supported: bool,
}
pub fn stream_head(spec: &StreamSpec) -> StreamHead {
let cons = |ct: &'static str, rs: bool| StreamHead {
content_type: ct,
range_supported: rs,
};
let container_ct = |x: StreamContainer| match x {
StreamContainer::WebM => "video/webm",
StreamContainer::Matroska => "video/x-matroska",
StreamContainer::WebVTT => "text/vtt",
StreamContainer::JVTT => "application/jellything-vtt+json",
};
match spec {
StreamSpec::Whep { .. } => cons("application/x-todo", false),
StreamSpec::WhepControl { .. } => cons("application/x-todo", false),
StreamSpec::Remux { container, .. } => cons(container_ct(*container), true),
StreamSpec::Original { .. } => cons("video/x-matroska", true),
StreamSpec::HlsSuperMultiVariant { .. } => cons("application/vnd.apple.mpegurl", false),
StreamSpec::HlsMultiVariant { .. } => cons("application/vnd.apple.mpegurl", false),
StreamSpec::HlsVariant { .. } => cons("application/vnd.apple.mpegurl", false),
StreamSpec::Info { .. } => cons("application/jellything-stream-info+json", false),
StreamSpec::FragmentIndex { .. } => cons("application/jellything-frag-index+json", false),
StreamSpec::Fragment { container, .. } => cons(container_ct(*container), false),
}
}
pub async fn stream(
info: Arc<MediaInfo>,
spec: StreamSpec,
range: Range<usize>,
) -> Result<DuplexStream> {
let (a, b) = duplex(4096);
Ok(a)
}
async fn remux_stream(
node: Arc<Node>,
local_tracks: Vec<LocalTrack>,
spec: StreamSpec,
range: Range<usize>,
b: DuplexStream,
) -> Result<()> {
let b = SyncIoBridge::new(b);
// tokio::task::spawn_blocking(move || {
// jellyremuxer::remux_stream_into(
// b,
// range,
// CONF.media_path.to_owned(),
// &node,
// local_tracks,
// spec.track,
// spec.webm.unwrap_or(false),
// )
// });
Ok(())
}
async fn original_stream(
local_tracks: Vec<LocalTrack>,
spec: StreamSpec,
range: Range<usize>,
b: DuplexStream,
) -> Result<()> {
// if spec.track.len() != 1 {
// bail!("invalid amout of source \"tracks\". original only allows for exactly one.")
// }
// let source = local_tracks[spec.track[0]].clone();
// let mut file = File::open(CONF.media_path.join(source.path))
// .await
// .context("opening source")?;
// file.seek(SeekFrom::Start(range.start as u64))
// .await
// .context("seek source")?;
// tokio::task::spawn(copy_stream(file, b, range.end - range.start));
Ok(())
}
async fn copy_stream(mut inp: File, mut out: DuplexStream, mut amount: usize) -> Result<()> {
let mut buf = [0u8; 4096];
loop {
let size = inp.read(&mut buf[..amount.min(4096)]).await?;
if size == 0 {
break Ok(());
}
out.write_all(&buf[..size]).await?;
amount -= size;
}
}
// TODO functions to test seekability, get live status and enumate segments
trait MediaSource {
/// Seeks to some position close to, but before, `time` ticks.
fn seek(&mut self, time: u64) -> Result<()>;
/// Retrieve headers (info and tracks) for some segment.
fn segment_headers(&mut self, seg: u64) -> Result<(Info, Tracks)>;
/// Returns the next block and the current segment index
fn next(&mut self) -> Result<Option<(u64, AbsBlock)>>;
}
pub struct AbsBlock {
track: u64,
pts: u64,
keyframe: bool,
lacing: Option<LacingType>,
data: Vec<u8>,
}
|
