per-group track config: probe bitrate, per-file track map, folder multi-picker

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
2026-07-23 12:11:23 +00:00
co-authored by Claude Opus 4.8
parent 17b7ca8b72
commit a0cfb1c526
3 changed files with 161 additions and 27 deletions
+13 -6
View File
@@ -88,6 +88,12 @@ function trackName(tags?: { title?: string; handler_name?: string }): string {
return tags?.title || (handler && !/Handler$/.test(handler) ? handler : '');
}
// ffprobe bit_rate (bits/s, as a string) → rounded kbps, or null when the container doesn't report it.
function kbps(bitRate?: string): number | null {
const n = Number(bitRate);
return Number.isFinite(n) && n > 0 ? Math.round(n / 1000) : null;
}
// Serve a video with a chosen audio track selected: fast `-c copy` remux (video untouched, other
// audio dropped) cached under the user's data dir, so it streams with byte-range seeking like /raw.
// In-flight remuxes are shared so concurrent requests for the same track don't race on the temp file.
@@ -390,13 +396,13 @@ router.get('/audio-tracks', async (ctx) => {
const absPath = resolveUserPath(rootDir, relPath);
const proc = Bun.spawn(
['ffprobe', '-v', 'error', '-select_streams', 'a', '-show_entries', 'stream=channels,codec_name:stream_tags=language,title,handler_name', '-of', 'json', absPath],
['ffprobe', '-v', 'error', '-select_streams', 'a', '-show_entries', 'stream=channels,codec_name,bit_rate:stream_tags=language,title,handler_name', '-of', 'json', absPath],
{ stdout: 'pipe', stderr: 'ignore' },
);
const out = await new Response(proc.stdout).text();
await proc.exited;
type ProbeAudio = { channels?: number; codec_name?: string; tags?: { language?: string; title?: string; handler_name?: string } };
type ProbeAudio = { channels?: number; codec_name?: string; bit_rate?: string; tags?: { language?: string; title?: string; handler_name?: string } };
let streams: ProbeAudio[] = [];
try {
streams = (JSON.parse(out).streams as ProbeAudio[]) ?? [];
@@ -408,6 +414,7 @@ router.get('/audio-tracks', async (ctx) => {
id,
codec: s.codec_name ?? '',
channels: s.channels ?? 0,
bitrate: kbps(s.bit_rate),
lang: s.tags?.language ?? '',
title: trackName(s.tags),
}));
@@ -424,19 +431,19 @@ const VIDEO_EXTENSIONS = new Set([
'ts', 'm2ts', 'mts', '3gp', 'ogv', 'vob', 'divx', 'asf', 'f4v', 'rm', 'rmvb',
]);
type FolderAudioTrack = { id: number; codec: string; channels: number; lang: string; title: string };
type FolderAudioTrack = { id: number; codec: string; channels: number; bitrate: number | null; lang: string; title: string };
type FolderSubtitleTrack = { id: number; codec: string; lang: string; title: string };
type ProbedTracks = { audio: FolderAudioTrack[]; subtitle: FolderSubtitleTrack[] };
async function probeVideoTracks(absPath: string): Promise<ProbedTracks> {
const proc = Bun.spawn(
['ffprobe', '-v', 'error', '-show_entries', 'stream=codec_type,codec_name,channels:stream_tags=language,title,handler_name', '-of', 'json', absPath],
['ffprobe', '-v', 'error', '-show_entries', 'stream=codec_type,codec_name,channels,bit_rate:stream_tags=language,title,handler_name', '-of', 'json', absPath],
{ stdout: 'pipe', stderr: 'ignore' },
);
const out = await new Response(proc.stdout).text();
await proc.exited;
type ProbeStream = { codec_type?: string; codec_name?: string; channels?: number; tags?: { language?: string; title?: string; handler_name?: string } };
type ProbeStream = { codec_type?: string; codec_name?: string; channels?: number; bit_rate?: string; tags?: { language?: string; title?: string; handler_name?: string } };
let streams: ProbeStream[] = [];
try {
streams = (JSON.parse(out).streams as ProbeStream[]) ?? [];
@@ -446,7 +453,7 @@ async function probeVideoTracks(absPath: string): Promise<ProbedTracks> {
const audio = streams
.filter((s) => s.codec_type === 'audio')
.map((s, id) => ({ id, codec: s.codec_name ?? '', channels: s.channels ?? 0, lang: s.tags?.language ?? '', title: trackName(s.tags) }));
.map((s, id) => ({ id, codec: s.codec_name ?? '', channels: s.channels ?? 0, bitrate: kbps(s.bit_rate), lang: s.tags?.language ?? '', title: trackName(s.tags) }));
// subtitle `id` is the index among ALL subtitle streams (what `-map 0:s:id` expects), assigned
// before filtering out image-based tracks that can't become soft subs.
const subtitle = streams