931059 – media-video/ffmpeg-6.1.1: massive memory leak

Bug 931059 - media-video/ffmpeg-6.1.1: massive memory leak

Summary: media-video/ffmpeg-6.1.1: massive memory leak

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	Current packages (show other bugs)
Hardware:	All Linux

Importance:	Normal normal (vote)
Assignee:	Gentoo Media-video project

URL:
Whiteboard:
Keywords:	PATCH

Depends on:
Blocks:

Reported:	2024-05-01 16:59 UTC by Ville Syrjala
Modified:	2024-05-02 05:21 UTC (History)
CC List:	1 user (show)

See Also:
Package list:
Runtime testing required:	---

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Description Ville Syrjala 2024-05-01 16:59:20 UTC

Ran into a massive memory leak on ffmpeg-6.1.1 while transcoding audio books. 6.0.1 was fine.

Reproducible: Always

Steps to Reproduce:
1. ffmpeg -activation_bytes XXX -i book.aax -map 0:a -map 0:v -c:a mp3 -c:v copy  -ss 0.000000 -to 909.038005 -metadata track="1/69" -metadata title="Chapter 1" book_01.mp3

Actual Results:  
Memory consumption goes through the roof.

Expected Results:  
Memory consumption should be reasonable.

I reported this upstream: https://ffmpeg.org//pipermail/ffmpeg-devel/2024-May/326569.html

Can be fixed by cherry-picking these two commits from ffmpeg master:
commit 84e400ae37b1 ("avfilter/buffersrc: switch to activate")
commit d9e41ead8226 ("avfilter/avfilter: fix OOM case for default activate")

Comment 1 Sam James archtester

2024-05-02 05:20:07 UTC

Thanks for the report, and especially thanks for taking it upstream & getting it backported.

Comment 2 Larry the Git Cow gentoo-dev

2024-05-02 05:21:30 UTC

The bug has been closed via the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=90cfa72c27592c0d73ec8040f621e70153c9efbc

commit 90cfa72c27592c0d73ec8040f621e70153c9efbc
Author:     Sam James <sam@gentoo.org>
AuthorDate: 2024-05-02 05:20:31 +0000
Commit:     Sam James <sam@gentoo.org>
CommitDate: 2024-05-02 05:20:31 +0000

    media-video/ffmpeg: backport (serious) memory leak fix
    
    Closes: https://bugs.gentoo.org/931059
    Signed-off-by: Sam James <sam@gentoo.org>

 media-video/ffmpeg/ffmpeg-6.1.1-r6.ebuild          | 616 +++++++++++++++++++++
 .../ffmpeg/files/ffmpeg-6.1.1-memory-leak.patch    | 129 +++++
 2 files changed, 745 insertions(+)