From b60e9c6771f2c3264ea1f07e35253212f05d0c9e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pedro=20Pinh=C3=A3o?= <pinhao@users.noreply.github.com>
Date: Fri, 1 May 2026 04:05:08 +0100
Subject: [PATCH] fix(server): selectively apply metadata bitstream filter for
 video thumbnails (#28162)

---
 server/src/services/media.service.spec.ts | 2 +-
 server/src/utils/media.ts                 | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/server/src/services/media.service.spec.ts b/server/src/services/media.service.spec.ts
index 61940dd91d..694cd8ccf9 100644
--- a/server/src/services/media.service.spec.ts
+++ b/server/src/services/media.service.spec.ts
@@ -647,7 +647,7 @@ describe(MediaService.name, () => {
         expect.any(String),
         expect.objectContaining({
           inputOptions: expect.arrayContaining([
-            '-bsf:v',
+            '-bsf:0',
             'hevc_metadata=colour_primaries=1:matrix_coefficients=1:transfer_characteristics=1',
           ]),
           outputOptions: expect.any(Array),
diff --git a/server/src/utils/media.ts b/server/src/utils/media.ts
index fb27223d3a..5525dafe94 100644
--- a/server/src/utils/media.ts
+++ b/server/src/utils/media.ts
@@ -423,7 +423,7 @@ export class ThumbnailConfig extends BaseConfig {
 
     if (metadataOverrides.length > 0) {
       // workaround for https://fftrac-bg.ffmpeg.org/ticket/11020
-      options.push('-bsf:v', `${videoStream.codecName}_metadata=${metadataOverrides.join(':')}`);
+      options.push(`-bsf:${videoStream.index}`, `${videoStream.codecName}_metadata=${metadataOverrides.join(':')}`);
     }
 
     return options;