From aafe23f1c84cf49f83bf6fc98d9f1167aba4f031 Mon Sep 17 00:00:00 2001
From: mimimiku778 <0203.sub@gmail.com>
Date: Fri, 10 Jul 2026 23:12:25 +0900
Subject: [PATCH] fix(obs): let uploadObjTalk carry the real audio/video
 duration

uploadObjTalk hardcoded the obs `duration` param to "1919" for audio and
video. LINE uses this param verbatim as the length shown in the client (it
does not recompute it from the uploaded m4a/mp4), so every voice/video
message was displayed as ~1.9s regardless of its real length. Add an
optional `durationMs` argument and use it, keeping 1919 as the fallback so
existing callers are unaffected.
---
 packages/linejs/base/obs/mod.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/linejs/base/obs/mod.ts b/packages/linejs/base/obs/mod.ts
index a2e4e4f8..aeb89091 100644
--- a/packages/linejs/base/obs/mod.ts
+++ b/packages/linejs/base/obs/mod.ts
@@ -157,6 +157,7 @@ export class LineObs {
 		data: Blob,
 		oid?: string,
 		filename?: string,
+		durationMs?: number,
 	): Promise<{
 		objId: string;
 		objHash: string;
@@ -195,7 +196,10 @@ export class LineObs {
 			param.cat = "original";
 			param.type = "image";
 		} else if (type === "audio" || type === "video") {
-			param.duration = "1919"; // 810
+			// LINE uses this obs param verbatim as the displayed length (it does not
+			// recompute it from the uploaded file), so a caller-supplied real duration
+			// must be honoured; keep the historical value as the fallback.
+			param.duration = (durationMs ?? 1919).toString();
 		}
 		const toType: "talk" | "g2" = to[0] === "m" || to[0] === "t"
 			? "g2"