[BUG] segfault when trying to use a super resolution denominator that's not 8

[TheLegendOfKitty]

Overview
svt-av1-psy segfaults when trying to use a super resolution denominator that's not 8.

Branch
In which branch does the issue appear to be occurring?

• [*] master
• testing (I have not tried testing)

Reproduction
Attempt to use super resolution with a denominator that's not 8, such as 16. The command I tried is below.

ffmpeg -i in.mkv -strict -1 -f yuv4mpegpipe - | ./SvtAv1EncApp -i - -b out.mkv --crf 16 --preset 4 --superres-mode 1 --superres-denom 16 (piped through ffmpeg)

Expected behavior
The video would be encoded with the super resolution mode and denominator that was selected.

Terminal Output
terminated by signal SIGSEGV (Address boundary error)

[ 2402.331807] SvtAv1EncApp[68308]: segfault at 0 ip 0000561049f1c8dc sp 00007339c4810db0 error 6 in SvtAv1EncApp[2198dc,561049d24000+690000] likely on CPU 18 (core 30, socket 0) [ 2402.331823] Code: 28 c8 f2 0f 10 05 94 bb 4a 00 48 8b 85 88 5d 00 00 f2 0f 5c c1 f2 0f 59 05 c1 c0 4a 00 f2 0f 58 84 24 88 00 00 00 48 8b 40 50 <f2> 0f 11 04 18 48 83 c3 08 e8 66 79 e0 ff f2 0f 58 44 24 58 83 44

Platform
uname: Linux p14s 6.12.7-zen1-1-zen x86_64 unknown GNU/Linux
compiled with: cc (GCC) 14.2.1 20240910
build command: cmake .. -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF -DBUILD_DEC=OFF -DSVT_AV1_LTO=ON -DNATIVE=ON -DCMAKE_CXX_FLAGS="-O3" -DCMAKE_C_FLAGS="-O3" -DCMAKE_LD_FLAGS="-O3" && make -j$(nproc)

Version String (please complete the following information):

• Run SvtAv1EncApp --version and copy the result: SVT-AV1-PSY v2.3.0-A-5-gf560b40c (release) PSY Release: A

Additional context / Relevant Files
Any file you encode should work. Some that failed:
eva OP: https://github.com/user-attachments/assets/5d9eb9a7-789e-4c5b-bd95-d4597959a15d
a hard day's night (i tried both 4k and 1080p, but github restricts to 10mb limit, so this is 1080p): https://github.com/user-attachments/assets/f82cfc53-5214-4727-90f9-880dcacb5726

[juliobbv-p]

Hi @TheLegendOfKitty, can you try this with mainline SVT-AV1 and see if it reproduces there too? If that's the case, you'll need to follow up with them instead: https://gitlab.com/AOMediaCodec/SVT-AV1