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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) 2026 metamuffin <metamuffin.org>
*/
pub mod cues;
pub mod dash;
mod fragment;
mod fragment_index;
mod hls;
pub mod metadata;
mod stream_info;
mod webvtt;
use anyhow::{Context, Result, anyhow};
use fragment::fragment_stream;
use fragment_index::fragment_index_stream;
use hls::{hls_multivariant_stream, hls_variant_stream};
use jellycache::Cache;
use jellyremuxer::demuxers::create_demuxer_autodetect;
use jellystream_types::{StreamSpec, TrackKind};
use serde::{Deserialize, Serialize};
use std::{
collections::BTreeSet,
fs::File,
io::{Cursor, Read, Seek, SeekFrom},
ops::Range,
path::PathBuf,
sync::Arc,
};
use stream_info::{stream_info, write_stream_info};
use crate::{dash::dash, fragment::fragment_init_stream};
#[rustfmt::skip]
#[derive(Debug, Deserialize, Serialize, Default)]
pub struct Config {
#[serde(default)] pub offer_avc: bool,
#[serde(default)] pub offer_hevc: bool,
#[serde(default)] pub offer_vp8: bool,
#[serde(default)] pub offer_vp9: bool,
#[serde(default)] pub offer_av1: bool,
pub transcoder: jellytranscoder::Config,
}
pub struct SMediaInfo {
pub title: Option<String>,
pub files: BTreeSet<PathBuf>,
pub cache: Arc<Cache>,
pub config: Arc<Config>,
}
pub struct StreamHead {
pub content_type: &'static str,
pub range_supported: bool,
}
pub fn stream_head(spec: &StreamSpec) -> StreamHead {
let kind = TrackKind::Video; // TODO
use StreamSpec::*;
let range_supported = matches!(spec, Remux { .. } | Original { .. });
let content_type = match spec {
Original { .. } => "video/x-matroska",
HlsMultiVariant => "application/vnd.apple.mpegurl",
HlsVariant { .. } => "application/vnd.apple.mpegurl",
Info => "application/jellything-stream-info+json",
Dash => "application/dash+xml",
FragmentIndex { .. } => "application/jellything-frag-index+json",
FragmentInit { container, .. } => container.mime_type(kind),
Fragment { container, .. } => container.mime_type(kind),
Remux { container, .. } => container.mime_type(kind),
Attachment { name: _ } => "application/json", // TODO infer from ext
};
StreamHead {
content_type,
range_supported,
}
}
pub fn stream(
info: Arc<SMediaInfo>,
spec: StreamSpec,
range: Range<u64>,
) -> Result<Box<dyn Read + Send + Sync>> {
match spec {
StreamSpec::Original { track } => original_stream(info, track, range),
StreamSpec::HlsMultiVariant => hls_multivariant_stream(&info),
StreamSpec::HlsVariant { track, format } => hls_variant_stream(&info, track, format),
StreamSpec::Info => write_stream_info(&info),
StreamSpec::Dash => dash(&info),
StreamSpec::FragmentIndex { track } => fragment_index_stream(info, track),
StreamSpec::FragmentInit {
track,
container,
format,
} => fragment_init_stream(info, track, format, container),
StreamSpec::Fragment {
track,
index,
container,
format,
} => fragment_stream(info, track, index, format, container),
StreamSpec::Remux { .. } => todo!(),
StreamSpec::Attachment { name } => attachment_stream(info, name),
}
}
fn original_stream(
info: Arc<SMediaInfo>,
track: usize,
range: Range<u64>,
) -> Result<Box<dyn Read + Send + Sync>> {
let (iinfo, _info) = stream_info(&info)?;
let (file_index, _) = *iinfo
.track_to_file
.get(track)
.ok_or(anyhow!("unknown track"))?;
let mut file = File::open(&iinfo.paths[file_index]).context("opening source")?;
file.seek(SeekFrom::Start(range.start))
.context("seek source")?;
Ok(Box::new(file.take(range.end - range.start)))
}
fn attachment_stream(info: Arc<SMediaInfo>, name: String) -> Result<Box<dyn Read + Send + Sync>> {
let (iinfo, _info) = stream_info(&info)?;
let (file_index, _) = *iinfo.track_to_file.get(0).ok_or(anyhow!("unknown track"))?;
let file = File::open(&iinfo.paths[file_index]).context("opening source")?;
let mut dm =
create_demuxer_autodetect(Box::new(file))?.ok_or(anyhow!("unknown file format"))?;
let attachments = dm.attachments()?.unwrap_or_default();
let file = attachments
.files
.iter()
.find(|f| f.name == name)
.ok_or(anyhow!("file not found"))?;
Ok(Box::new(Cursor::new(file.data.to_owned())))
}
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