[FFmpeg-devel] [PR] avutil/dovi_meta: Docuemnt valid range for index of av_dovi_get_ext() (PR #21640)

[FFmpeg-devel] [PR] avutil/dovi_meta: Docuemnt valid range for index of av_dovi_get_ext() (PR #21640)

[michaelni via ffmpeg-devel]

PR #21640 opened by michaelni
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21640
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21640.patch

Every use case in libavcodec already checks the index

Found-by: 이동준 <ldj6192@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>


From 3ecb4119f687d9a2465a64b2bf5b98a6c472b418 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Tue, 3 Feb 2026 21:07:02 +0100
Subject: [PATCH] avutil/dovi_meta: Docuemnt valid range for index of
 av_dovi_get_ext()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Every use case in libavcodec already checks the index

Found-by: 이동준 <ldj6192@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavutil/dovi_meta.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavutil/dovi_meta.h b/libavutil/dovi_meta.h
index 18aebaaca8..0cc751788e 100644
--- a/libavutil/dovi_meta.h
+++ b/libavutil/dovi_meta.h
@@ -377,6 +377,10 @@ av_dovi_get_color(const AVDOVIMetadata *data)
     return (AVDOVIColorMetadata *)((uint8_t *) data + data->color_offset);
 }
 
+/**
+ * Gets the specificed Dolby Vision Display Management (DM) metadata
+ * @param index must be non negative and below data->num_ext_blocks
+ */
 static av_always_inline AVDOVIDmData *
 av_dovi_get_ext(const AVDOVIMetadata *data, int index)
 {
-- 
2.52.0

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