[FFmpeg-devel] [PATCH] libavformat/mov: add support for name udta (PR #20802)

[Lukas via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>]

PR #20802 opened by Lukas (lholliger)
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20802
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20802.patch

In the QTFF documentation for udta/"user data atoms", "name" is a
valid entry for "name of object" however it is currently skipped
leading to some missing metadata when copying for some files. This
isn't classified the same as "(C)nam" which is "Title of content"
so they aren't necessarily the same.

Docs: https://developer.apple.com/documentation/quicktime-file-format/user_data_atoms
Fixes #20750


>From 881de845afce926482159b8d2272a6fa33fdeadd Mon Sep 17 00:00:00 2001
From: lholliger <14064434+lholliger@users.noreply.github.com>
Date: Fri, 31 Oct 2025 10:21:38 -0400
Subject: [PATCH] libavformat/mov: add support for name udta

In the QTFF documentation for udta/"user data atoms", "name" is a
valid entry for "name of object" however it is currently skipped
leading to some missing metadata when copying for some files. This
isn't classified the same as "(C)nam" which is "Title of content"
so they aren't necessarily the same.
---
 libavformat/mov.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 45c562cdc6..42062e6ba6 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -392,6 +392,7 @@ static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         return mov_metadata_loci(c, pb, atom.size);
     case MKTAG( 'm','a','n','u'): key = "make"; break;
     case MKTAG( 'm','o','d','l'): key = "model"; break;
+    case MKTAG( 'n','a','m','e'): key = "name"; break;
     case MKTAG( 'p','c','s','t'): key = "podcast";
         parse = mov_metadata_int8_no_padding; break;
     case MKTAG( 'p','g','a','p'): key = "gapless_playback";
-- 
2.49.1

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