Package: libheif1
Version: 1.23.6-2~deb13u1
Severity: normal
X-Debbugs-Cc: [email protected]

Dear Maintainer,

DESCRIPTION:
HEVC video playback crashes in both Flatpak Jellyfin-desktop and Firefox 
on Debian 13 (Trixie) after updating libheif to 1.23.6-2~deb13u1.

These same videos will play without issue on the same machine running Void 
Linux.

FINDINGS:
- Debian's libheif 1.23.6 was built against libde265 1.1.3 or newer
- Trixie only provides libde265 1.0.15
- This version mismatch causes HEVC decoding to fail
- On Void Linux (which has matching versions), HEVC playback works fine 
  with the same libheif 1.23.6_1

VERSIONS:
- libheif1: 1.23.6-2~deb13u1
- libde265-0: 1.0.15-1+deb13u2
- Void Linux (working): libheif 1.23.6_1, libde265 1.1.3_1

I have not tried to rollback any packages yet to confirm this as the root cause.


-- System Information:
Debian Release: 13.7
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.12.113+deb13-amd64 (SMP w/12 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libheif1 depends on:
ii  libbrotli1               1.1.0-2+deb13u1
ii  libc6                    2.41-12+deb13u4
ii  libgcc-s1                14.2.0-19
ii  libheif-plugin-dav1d     1.23.6-2~deb13u1
ii  libheif-plugin-libde265  1.23.6-2~deb13u1
ii  libsharpyuv0             1.5.0-0.1
ii  libstdc++6               14.2.0-19
ii  zlib1g                   1:1.3.dfsg+really1.3.1-1+b1

Versions of packages libheif1 recommends:
ii  libheif-plugin-aomenc  1.23.6-2~deb13u1
ii  libheif-plugin-x265    1.23.6-2~deb13u1

Versions of packages libheif1 suggests:
pn  libheif-plugin-ffmpegdec  <none>
ii  libheif-plugin-j2kdec     1.23.6-2~deb13u1
pn  libheif-plugin-j2kenc     <none>
pn  libheif-plugin-jpegdec    <none>
pn  libheif-plugin-jpegenc    <none>
pn  libheif-plugin-kvazaar    <none>
pn  libheif-plugin-rav1e      <none>
pn  libheif-plugin-svtenc     <none>

-- no debconf information

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